JP6965264B2 - Surgical staple fastening system with jaw closure lockout - Google Patents

Description

The present invention relates to surgical instruments and, in various configurations, to surgical staples and cutting instruments designed for stapling and cutting tissue, and staple cartridges for use with them.

The various features of the embodiments described herein, along with their advantages, can be understood by the following description in conjunction with the following accompanying drawings.
FIG. 3 is a perspective view of a surgical instrument with an interchangeable surgical tool assembly according to at least one embodiment. Another perspective view of the handle assembly in the surgical instrument of FIG. 1 in which a portion of the handle housing is omitted to expose the contained components. It is an disassembled assembly drawing of the handle assembly part in the surgical instrument of FIG. 1 and FIG. 2 is a cross-sectional perspective view of the handle assembly of FIGS. 2 and 3. 2 is a partially cutaway side view of the handle assembly of FIGS. 2-4, the grip portion of the handle assembly is shown by a solid line at one position with respect to the main housing portion and a virtual line at another position with respect to the main housing portion of the handle assembly. Indicated by. It is a stump view of the handle assembly of FIGS. 2 to 5 along the line 6-6 in FIG. Another stump view of the handle assembly of FIGS. 2-6, along line 7-7 in FIG. Another stump view of the handle assembly of FIGS. 2-7 showing a shifter gear meshing with a drive gear on a rotary drive socket. 2 is another stump view of the handle assembly of FIGS. 2-8 showing the position of the shifter solenoid when the shifter gear is meshed with the drive gear on the rotary drive socket. Another perspective view of the handle assembly of FIGS. 2-9, comprising the particular portion shown in cross section and the access panel portion shown by virtual lines. It is a top view of the handle assembly of FIGS. 2 to 11 with the relief system shown in the actuable position. 2 is a perspective view of the relief handle of the relief system shown in FIGS. 2 to 11. FIG. 5 is an exploded assembly view of the relief handle portion of FIG. 12 comprising that portion shown in cross section. It is a cut-off front view of the handle assembly of FIG. Exploded views of interchangeable tool assemblies according to at least one embodiment are illustrated. FIG. 15 is a perspective view of the interchangeable tool assembly of FIG. FIG. 15 is a cross-sectional perspective view of the interchangeable tool assembly of FIG. FIG. 15 is a cross-sectional exploded view of the replaceable tool assembly of FIG. FIG. 15 is a perspective view of a joint block in the interchangeable tool assembly of FIG. FIG. 5 is a cross-sectional perspective view of a joint joint in the interchangeable tool assembly of FIG. 15 comprising the joint block of FIG. It is another cross-sectional perspective view of the joint joint of FIG. FIG. 15 is a partial exploded view of the replaceable tool assembly of FIG. FIG. 15 is another partially exploded view of the interchangeable tool assembly of FIG. It is a partial exploded view of the joint joint of FIG. FIG. 15 is a cross-sectional perspective view of the proximal end of the interchangeable tool assembly of FIG. FIG. 15 is an end view of the interchangeable tool assembly of FIG. FIG. 15 is a cross-sectional view of the end effector of the interchangeable tool assembly of FIG. 15 along lines 27-27 of FIG. 26, illustrating a clamped but unfired end effector. FIG. 15 is a cross-sectional view of the end effector of the interchangeable tool assembly of FIG. 15 along lines 28-28 of FIG. 26, illustrating a clamped but unfired end effector. FIG. 15 is a cross-sectional view of the end effector of the interchangeable tool assembly of FIG. 15 along lines 29-29 of FIG. 26, illustrating a clamped but unfired end effector. FIG. 15 is a cross-sectional view of an end effector of the interchangeable tool assembly of FIG. 15, which is shown in a disassembled state. The end effector of the interchangeable tool assembly of FIG. 15 articulated in the first direction is illustrated. The end effector of the interchangeable tool assembly of FIG. 15 articulated in the second direction is illustrated. FIG. 15 is a perspective view of the cartridge body of the replaceable tool assembly of FIG. FIG. 3 is a perspective view of the cartridge body according to at least one alternative embodiment. It is an exploded view of the end effector of the interchangeable tool assembly by at least one alternative embodiment. It is an exploded view of the end effector of FIG. 35. It is an exploded view of the end effector of the interchangeable tool assembly by at least one alternative embodiment. It is an exploded view of the end effector of the interchangeable tool assembly by at least one alternative embodiment. FIG. 3 is a perspective view illustrating a staple cartridge and a shaft of a surgical staple fastener according to at least one embodiment. FIG. 3 is a partial cross-sectional view of a staple cartridge assembled to the staple fastener of FIG. 39. A partial cross-sectional view of a surgical staple fastener with a closed drive, an anvil, and a lockout configured to prevent the anvil from being assembled into the closed drive when the closed drive is not in the fully extended position. .. FIG. 41 is a partial cross-sectional view of the surgical staple fastening device of FIG. 41 illustrating an anvil attached to a closed drive. FIG. 6 is a partial perspective view of a surgical staple fastener with a staple cartridge and a closed drive configured to move the anvil relative to the staple cartridge. FIG. 43 is a partial cross-sectional view of the staple fastener of FIG. 43, illustrating a lockout configured to prevent the closed drive from retracting without the anvil being attached to the closed drive. FIG. 4 is a partial cross-sectional view of the staple fastener of FIG. 44, illustrating an anvil attached to the closed drive and a lockout disengaged from the closed drive. Surgery with staple cartridges in which the staples are retractably stowed, anvils, closed drives configured to move the anvils against the staple cartridges, and launch drives configured to eject the staples from the staple cartridges. It is a partial cross-sectional view of the staple fastener for use. FIG. 3 is a detailed view of a lockout configured to prevent the launch drive from operating before moving the anvil to the closed position. FIG. 4 is a detailed view of the lockout of FIG. 47, disengaged from the launch drive. Surgery with staple cartridges in which the staples are retractably stowed, anvils, closed drives configured to move the anvils against the staple cartridges, and launch drives configured to eject the staples from the staple cartridges. It is a partial perspective view of the staple fastener for use. Lockout details for the surgical staple fastener in Figure 49, which is configured to prevent the firing drive from operating before the anvil applies sufficient pressure to the tissue trapped between the anvil and the staple cartridge. It is a figure. FIG. 5 is a detailed view of the lockout of FIG. 50, disengaged from the launch drive. Surgery with staple cartridges in which the staples are retractably stowed, anvils, closed drives configured to move the anvils against the staple cartridges, and launch drives configured to eject the staples from the staple cartridges. It is a partial perspective view of the staple fastener for use. FIG. 5 is a detailed view of the lockout of the surgical staple clamp of FIG. 52, which is configured to prevent the anvil from disengaging from the closed drive while the cutting member of the firing drive is exposed on the staple cartridge. FIG. 5 is a detailed view of the lockout of FIG. 53, in which the launch drive is disengaged from the anvil after it has fully retracted after the launch stroke. Surgery with staple cartridges in which the staples are retractably stowed, anvils, closed drives configured to move the anvils against the staple cartridges, and launch drives configured to eject the staples from the staple cartridges. It is a partial cross-sectional view of the staple fastener for use. FIG. 5 is a partial cross-sectional view of the surgical staple fastening device of FIG. 55, illustrating a closed drive in a clamped configuration and a firing drive in an unfired configuration. In the figure, the launch drive holds a lockout in an unreleased configuration. FIG. 5 is a partial cross-sectional view of the surgical staple clamp of FIG. 55, illustrating a launch drive in at least a partially fired configuration and a lockout of FIG. 56 in an released configuration. A partial cross section of a surgical staple fastener of FIG. 55, illustrating a closed drive in an extended or open configuration and a lockout of FIG. 56 that is engaged with the closed drive to prevent it from being clamped again. It is a figure. Staples from staple cartridges, anvils, closed drives configured to move the anvil with respect to the staple cartridges, and staples illustrated in an disabled or locked-out configuration. FIG. 6 is a cross-sectional view of a surgical staple fastener with a firing drive configured to eject. FIG. 5 is an end cross-sectional view of the surgical staple fastening device of FIG. 59, along lines 59A-59A of FIG. 59. FIG. 5 is a cross-sectional view of the surgical staple fastening device of FIG. 59, illustrated in a clamped configuration in which the firing drive is effective. FIG. 5 is an end cross-sectional view of the surgical staple fastening device of FIG. 59, along line 60A-60A of FIG. 60. Surgery with staple cartridges in which the staples are retractably stowed, anvils, closed drives configured to move the anvils against the staple cartridges, and launch drives configured to eject the staples from the staple cartridges. It is a partial cross-sectional view of the staple fastener for use. In the figure, the closed drive is shown in an unclamped configuration and the launch drive is shown in an inoperable configuration. FIG. 6 is a partial cross-sectional view of a surgical staple fastening device of FIG. 61 comprising a closed drive illustrated in a clamped configuration and a firing drive illustrated in an operable configuration. FIG. 6 is a perspective view of a rotary intermediate drive member of a launch drive in the surgical instrument of FIG. 61. FIG. 6 is a partial perspective view of a rotary launch shaft of a launch drive in the surgical instrument of FIG. FIG. 6 is a front view of a spring system configured to urge the launch shaft of FIG. 64 to disengage from the intermediate drive member of FIG. 63. FIG. 6 is an exploded view of an end effector of a surgical staple fastening device comprising a staple cartridge according to at least one embodiment. FIG. 6 is a partial cross-sectional view of the end effector of FIG. 66, illustrating a lockout configured to prevent the end effector from operating when the staple cartridge is not fully assembled to the staple fastener. FIG. 6 is a partial cross-sectional view of the end effector of FIG. 66, illustrating a lockout in an unlocked configuration. FIG. 6 is an exploded view of an end effector of a surgical staple fastening device comprising a staple cartridge according to at least one embodiment. FIG. 6 is a partial cross-sectional view of the end effector of FIG. 69, illustrating a lock configured to detachably hold the staple cartridge to the staple fastener. FIG. 6 is a partial cross-sectional view of the end effector of FIG. 69, illustrating a lock in a non-locking configuration. The shaft of a surgical stapler configured to be used with a staple cartridge selected from a plurality of ring staple cartridges is illustrated. FIG. 7 is a cross-sectional view of the distal end of the staple fastening device of FIG. 72. Partial cross-section of a surgical staple fastener with an unfired staple cartridge and a lockout system configured to prevent the staple cartridge from being fired again after being fired earlier by the surgical instrument firing drive. Is. FIG. 7 is a partial cross-sectional view of the staple fastener of FIG. 74 illustrated in the clamp configuration and the launch drive in the launched configuration. FIG. 4 is a partial cross-sectional view of the staple fastener of FIG. 74 illustrated in an unclamped configuration and a launch drive in a retracted configuration. FIG. 7 is an end view of the firing drive and frame of the staple fastening device of FIG. 74, illustrating the firing drive in an unlaunched configuration. FIG. 7 is an end view of the launch drive and frame of the staple fastening device of FIG. 74, illustrating the launch drive in a retracted configuration. FIG. 5 is an end view of an alternative staple cartridge design that can be used with the staple fasteners of FIG. 74. FIG. 5 is an end view of an alternative staple cartridge design that can be used with the staple fasteners of FIG. 74. FIG. 6 is a perspective view of a surgical staple fastening instrument with a flexible shaft according to at least one embodiment. FIG. 6 is a schematic representation of a surgical instrument kit comprising a plurality of end effectors according to at least one embodiment. FIG. 6 is a schematic representation of a robotic surgical instrument system comprising a plurality of attachable end effectors according to at least one embodiment. FIG. 8 is a perspective view of a plurality of end effectors shown in FIG. 82. FIG. 3 is a perspective view of an anvil according to at least one embodiment. FIG. 8 is a cross-sectional view of the anvil of FIG. 84. FIG. 6 is a partial cross-sectional view of an end effector with an anvil of FIG. 84, illustrated in a fired configuration. FIG. 3 is a perspective view of an anvil according to at least one embodiment. It is a top view of the anvil of FIG. 87. FIG. 6 is a cross-sectional view of an end effector according to at least one embodiment, illustrated in a clamped but unfired configuration. FIG. 8 is a cross-sectional view of the end effector of FIG. 89, illustrated in the launched configuration. FIG. 6 is a cross-sectional view of an end effector according to at least one alternative embodiment, illustrated in a clamped but unfired configuration. FIG. 9 is a cross-sectional view of the end effector of FIG. 91, illustrated in the launched configuration. FIG. 6 is a cross-sectional view of an end effector according to at least one alternative embodiment, illustrated in a clamped but unfired configuration. FIG. 9 is a cross-sectional view of the end effector of FIG. 91, illustrated in the launched configuration. FIG. 3 is a perspective view of a staple forming pocket according to at least one embodiment. It is sectional drawing of the staple formation pocket of FIG. FIG. 3 is an exploded view of an end effector according to at least one embodiment configured to continuously deploy a first annular row of staples and a second annular row of staples. FIG. 9 is a partial cross-sectional view of the end effector of FIG. 97, illustrating a launch driver deploying staples in the first row of staples. FIG. 9 is a partial cross-sectional view of the end effector of FIG. 97, illustrating the launch driver of FIG. 98, deploying staples in the second row of staples. Continuously drive a first driver for firing the first row of staples, a second driver for firing the second row of staples, and then a third driver for driving the cutting member. It is a partial perspective view of the launch drive configured to make it. It is a partial perspective view of the launch drive of FIG. 100 which illustrates the first driver in the fired position. FIG. 3 is a partial perspective view of the launch drive of FIG. 100, illustrating a second driver in the fired position. FIG. 3 is a partial perspective view of the launch drive of FIG. 100, illustrating a third driver in the fired position. It is an exploded view of the launch drive of FIG. It is a partial perspective view of the launch drive of FIG. 100 in the configuration of FIG. 103. It is an exploded view of the launch drive by at least one alternative embodiment. FIG. 5 is a perspective view of a portion of a surgical staple cartridge for use with a cricoid surgical staple retainer according to at least one embodiment. A pair of staples according to at least one embodiment in unformed and preformed configurations is shown. FIG. 6 is a cross-sectional view of a portion of an anvil associated with a portion of the surgical staple cartridge of FIG. 107 before the staple forming process is activated. Another cross-sectional view of the anvil of FIG. 109 and the staple cartridge of FIG. 107 after the staples have been formed. FIG. 5 is a perspective view of a portion of a surgical staple cartridge for use with a cricoid surgical staple retainer according to at least one embodiment. FIG. 6 is a cross-sectional view of a portion of an anvil associated with a portion of the surgical staple cartridge of FIG. 111 before the staple forming process is activated. Another cross-sectional view of the anvil and staple cartridge of FIG. 112 after the staples have been formed. It is a top view of the staple cartridge according to at least one embodiment. It is a bottom view of the anvil according to at least one embodiment. FIG. 3 is a cross-sectional view of a portion of an anvil associated with a portion of a surgical staple cartridge. Three staples for plastic surgery are shown. FIG. 5 is a partial cross-sectional view of a staple cartridge of a ring-shaped stapler according to at least one embodiment. A partial perspective view of a staple cartridge of a ring-shaped stapler according to at least one embodiment is illustrated.

Throughout the drawings, the corresponding reference numerals indicate the corresponding parts. The illustrations described herein illustrate various embodiments of the invention in one form, and such illustrations should be construed as limiting the scope of the invention in any way. No.

The applicant of the present application owns the following patent applications filed on the same date as the present application, the entire contents of which are incorporated herein by reference:
-US Patent Application No. ________, title of invention "METHOD FOR OPERATING A SURGICAL STAPLING SYSTEM", agent reference number END7821USNP / 150535,
-US Patent Application No. ________, title of invention "MODULAR SURGICAL STAPLING SYSTEM COMPRISING A DISPLAY", agent reference number END7822USNP / 150536,
-US Patent Application No. ________, title of invention "SURGICAL STAPLING SYSTEM COMPRISING A DISPLAY INCLUDING A RE-ORIENTABLE DISPLAY FIELD", agent reference number END7822USNP1 / 1506
-US Patent Application No. ________, Title of Invention "SURGICAL INSTRUMENT HANDLE ASSEMBLY WITH RECONFIGURABLE GRIP PORTION", Agent Reference Number END7823USNP / 150537,
-US Patent Application No. ________, title of invention "ROTARY POWERED SURGICAL INSTRUMENT WITH MANUALLY ACTUATABLE BAILOUT SYSTEM", agent reference number END7824USNP / 150538,
-US Patent Application No. ________, title of invention "SURGICAL CUTTING AND STAPLING END EFFECTOR WITH ANVIL CONCENTRIC DRIVE MEMBER", agent reference number END7825USNP / 150539,
-US Patent Application No. ________, Invention Name "CLOSES SYSTEM ARRANGEMENTS FOR SURGICAL CUTTING AND STAPLING DEVICES WITH SEPARATE AND DISTINCT FIRING SHAFTS"
-US Patent Application No. _________, name "INTERCHANGE SURGICAL TOOL ASSEMBLY WITH A SURGICAL END EFFETOR THAT IS SELECTIVELY ABOUT A SHAFT AXIS"
U.S. Pat.
U.S. Patent Application No. ________, title of invention "SURGICAL STAPLING SYSTEM CONFIGURED TO PROVIDE SELECTIVE CUTTING OF TISSUE", agent reference number END7830USNP / 150544,
-US Patent Application No. ________, title of invention "SURGICAL STAPLING SYSTEM COMPRISING A CONTOURABLE SHAFT", agent reference number END7831USNP / 150545,
-US Patent Application No. ________, title of invention "SURGICAL STAPLING SYSTEM COMPRISING A TISSUE COMPRESSION LOCKOUT", agent reference number END7832USNP / 150546,
-US Patent Application No. ________, title of invention "SURGICAL STAPLING SYSTEM COMPRISING AN UNCLAMPING LOCKOUT", agent reference number END7833USNP / 150547,
-US Patent Application No. ________, title of invention "SURGICAL STAPLING SYSTEM COMPRISING A JAW ATTACHMENT LOCKOUT", agent reference number END7835USNP / 150549,
-US Patent Application No. ________, title of invention "SURGICAL STAPLING SYSTEM COMPRISING A SPENT CARTRIDGE LOCKOUT", agent reference number END7836USNP / 150550,
-US Patent Application No. ________, title of invention "SURGICAL INSTRUMENT COMPRISING A SHIFTING MECHANISM", agent reference number END7837USNP / 150551,
-US Pat.
-US Patent Application No. ________, title of invention "SURGICAL STAPLING INSTRUMENT", agent reference number END7839USNP / 150553,
-US Patent Application No. ________, title of invention "SURGICAL STAPLING SYSTEM CONFIGURED TO APPLY ANNULAR ROWS OF STAPLES HAVING DIFFERENT HEIGHTS", agent reference number END7840USNP / 150
-US Patent Application No. ________, title of invention "SURGICAL STAPLING SYSTEM COMPRISING A GROOVED FORMING POCKET", agent reference number END7841USNP / 150555,
-US Patent Application No. ________, title of invention "ANVIL MODIFICATION MEMBERS FOR SURGICAL STAPLERS", agent reference number END7842USNP / 150556,
-US Patent Application No. ________, title of invention "STAPLE CARTRIDGES WITH ATRAUMATIC FEATURES", agent reference number END7843USNP / 150557,
-US Patent Application No. ________, Title of Invention "CIRCULAR STAPLING SYSTEM COMPRISING AN INCISABLE TISSUE SUPPORT", Agent Reference Number END7844USNP / 150558,
-US Patent Application No. ___________, Invention Title "CIRCULAR STAPLING SYSTEM COMPRISING ROTARY FIRING SYSTEM", Agent Reference Number END7845USNP / 150559, and-US Patent Application No. _____________________ Person reference number END7845USNP 1/150559-1.

The applicant of this application also retains the designated US patent application, filed December 31, 2015, each of which is incorporated herein by reference in its entirety.
-US Patent Application No. 14 / 984,488, Invention Title "MECHANIMSS FOR COMPENSATING FOR BATTERY PACK FAIRURE IN POWERED SURGICAL INSTRUMENTS",
-US Patent Application No. 14 / 984,525, title of invention "MECHANIMSS FOR COMPENSATING FOR DRIVETRAIN FAIRURE IN POWERED SURGICAL INSTRUMENTS", and-US Patent Application No. 14 / 984,552, title of invention "SURGMENTRAIN" AND MOTOR CONTROL CIRCUITS ".

The applicant of this application also retains the designated US patent application, filed February 9, 2016, each of which is incorporated herein by reference in its entirety.
-US Patent Application No. 15 / 019,220, Title of Invention "SURGICAL INSTRUMENT WITH ARTICULATING AND AXIALLY TRANSLATABLE END EFFECTOR",
-US Patent Application No. 15 / 019,228, Title of Invention "SURGICAL INSTRUMENTS WITH MULTIPLE LINK ARTICULATION ARRANGEMENTS",
-US Patent Application No. 15 / 019,196, Title of Invention "SURGICAL INSTRUMENT ARTICULATION MECHANISM WITH SLOTTED SECONDARY CONSTRAINT",
-US Patent Application No. 15 / 019,206, title of invention "SURGICAL INSTRUMENTS WITH AN END EFFECTOR THAT IS HIGHLY ARTICULATABLE RELATIVE TO AN ELONGATE SHAFT ASSEMBLY",
-US Patent Application No. 15 / 019,215, Title of Invention "SURGICAL INSTRUMENTS WITH NON-SYMMETRICAL ARTICULATION ARRANGEMENTS",
-US Patent Application No. 15 / 019,227, Title of Invention "ARTICULATABLE SURGICAL INSTRUMENTS WITH SINGLE ARTICULATION LINK ARRANGEMENTS",
-US Patent Application No. 15 / 019,235, title of invention "SURGICAL INSTRUMENTS WITH TENSIONING ARRANGEMENTS FOR CABLE DRIVEEN ARTICULATION SYSTEMS",
-US Patent Application No. 15 / 019,230, title of invention "ARTICULATABLE SURGICAL INSTRUMENTS WITH OFF-AXIS FIRING BEAM ARRANGEMENTS", and-US Patent Application No. 15 / 019,245, title of invention "SURGICAL INSTRUMENTS" REDUCTION ARRANGEMENTS ".

The applicant of this application also retains the designated US patent application, filed February 12, 2016, each of which is incorporated herein by reference in its entirety.
-US Patent Application No. 15 / 043,254, title of invention "MECHANIMSS FOR COMPENSATING FOR DRIVETRAIN FAIRURE IN POWERED SURGICAL INSTRUMENTS",
-US Patent Application No. 15 / 043,259, title of invention "MECHANIMSS FOR COMPENSATING FOR DRIVETRAIN FAIRURE IN POWERED SURGICAL INSTRUMENTS",
-US Patent Application No. 15 / 043,275, title of invention "MECHANIMS FOR COMPENSATING FOR DRIVETRAIN FAIRURE IN POWERED SURGICAL INSTRUMENTS", and-US Patent Application No. 15 / 043,289, title of invention "MECHANISMS FOR FAIRURE IN POWERED SURGICAL INSTRUMENTS ".

The applicant of the present application owns the following patent applications filed on June 18, 2015, the entire contents of which are incorporated herein by reference:
-US Patent Application No. 14 / 742,925, Invention title "SURGICAL END EFFECTORS WITH POSITIVE JAW OPENING ARRANGEMENTS",
-US Patent Application No. 14 / 742,941, Title of Invention "SURGICAL END EFFECTORS WITH DUAL CAM ACTUATED JAW CLOSEING FEATURES",
-US Patent Application No. 14 / 742,914, Invention Title "MOVABLE FIRING BEAM SUPPORT ARRANGEMENTS FOR ARTICULATABLE SURGICAL INSTRUMENTS",
-US Patent Application No. 14 / 742,900, title of invention "ARTICULATABLE SURGICAL INSTRUMENTS WITH COMPOSITE FIRING BEAM STRUCTURES WITH CENTER FIRING SUPPORT MEMBER FOR PORT"
-US Patent Application No. 14 / 742,885, title of invention "DUAL ARTICULATION DRIVE SYSTEM ARRANGEMENTS FOR ARTICULATALLE SURGICAL INSTRUMENTS", and-US Patent Application No. 14 / 742,876, name "PUSTION" SURGICAL INSTRUMENTS ".

The applicant of the present application owns the following patent applications filed on March 6, 2015, the entire contents of which are incorporated herein by reference:
-US Patent Application No. 14 / 640,746, Invention Title "POWERED SURGICAL INSTRUMENT",
-US Patent Application No. 14 / 640,795, title of invention "MULTIPLE LEVEL THRESHOLDS TO MODEIFY OPERATION OF POWERED SURGICAL INSTRUMENTS",
-US Patent Application No. 14 / 640,832, Title of Invention "ADAPTIVE TISSUE COMPRESSION TECHNIQUES TO ADJUST CLOSURE RATES FOR MULTIPLE TISSUE TYPES", Agent Reference No. END7557USNP / 1402
-US Patent Application No. 14 / 640,935, title of invention "OVERLAID MULTI SENSOR RADIO FREQUENCY (RF) ELECTRODE SYSTEM TO MEASURE TISSUE COMPRESSION",
-US Patent Application No. 14 / 640,831, Title of Invention "MONITORING SPEED CONTROLL AND PRECISION INCREMENTING OF MOTOR FOR FOR POWERED SURGICAL INSTRUMENTS",
-US Patent Application No. 14 / 640,859, title of invention "TIME DEPENDENT EVALUATION OF SENSOR DATA TO DETERMINE STABILITY, CREEP, AND VISCOELASTIC ELEMENTS OF MEASURES",.
-US Patent Application No. 14 / 640,817, Title of Invention "INTERACTIVE FEEDBACK SYSTEM FOR POWERED SURGICAL INSTRUMENTS",
-US Patent Application No. 14 / 640,844, title of invention "CONTROLL TECHNIQUES AND SUB-PROCESSOR CONTROL WITHIN MODELAR SHAFT WITH SELECT CONTROLL PROCESSING FROM HANDLE",
-US Patent Application No. 14 / 640,837, Invention Title "SMART SENSORS WITH LOCAL SIGNAL PROCESSING",
-US Patent Application No. 14 / 640,765, Title of Invention "SYSTEM FOR DETECTING THE MIS-INSTRETION OF A STAPLE CARTRIDGE INTO A SURGICAL STAPLER",
-US Patent Application No. 14 / 640,799, title of invention "SIGNAL AND POWER COMMUNICATION SYSTEM POSITIONED ON A ROTATABLE SHAFT", and-US Patent Application No. 14 / 640,780, title of invention "SURGICAL INSTRUME" BATTERY HOUSING ".

The applicant of the present application owns the following patent applications filed on February 27, 2015, the entire contents of which are incorporated herein by reference:
-US Patent Application No. 14 / 633,576, Invention Title "SURGICAL INSTRUMENT SYSTEM COMPRISING AN INSTECTION STATION",
-US Patent Application No. 14 / 633,546, title of invention "SURGICAL APPARATUS CONFIGURED TO ASSESS WHERETER A PERFORMANCE PARAMETER OF THE SURGICAL APPARATUS IS WITHIN ANCE"
-US Patent Application No. 14 / 633,576, title of invention "SURGICAL CHARGING SYSTEM THAT CHARGES AND / OR CONDITIONS ONE OR MORE BATTERIES",
-US Patent Application No. 14 / 633,566, Title of Invention "CHARGING SYSTEM THAT ENABLES EMERGENCY RESOLUTIONS FOR CHARGING A BATTERY",
-US Patent Application No. 14 / 633,555, Title of Invention "SYSTEM FOR MONITORING WHERTHER A SURGICAL INSTRUMENT NEEDS TO BE SERVICED",
-US Patent Application No. 14 / 633,542, Title of Invention "REINFORCED BATTERY FOR A SURGICAL INSTRUMENT",
-US Patent Application No. 14 / 633,548, Title of Invention "POWER ADAPTER FOR A SURGICAL INSTRUMENT",
-US Patent Application No. 14 / 633,526, Invention Title "ADAPTABLE SURGICAL INSTRUMENT HANDLE",
-US Patent Application No. 14 / 633,541, Invention Name "MODULAR STAPLING ASSEMBLY", and-US Patent Application No. 14 / 633,562, Invention Name "SURGICAL APPARATUS CONFIGURED TO TRACK AN END-OF-LIFE PARAMETER"".

The applicant of the present application owns the following patent applications filed on December 18, 2014, the entire contents of which are incorporated herein by reference:
-US Patent Application No. 14 / 574,478, title of invention "SURGICAL INSTRUMENT SYSTEMS COMPRISING AN ARTICULATABLE END EFFECTOR AND MEANS FOR ADJUSTING THE FIRING STROKE OF"
-US Patent Application No. 14 / 574,483, Invention Title "SURGICAL INSTRUMENT ASSEMBLY COMPRISING LOCKABLE SYSTEMS",
-US Patent Application No. 14 / 575,139, Title of Invention "DRIVE ARRANGEMENTS FOR ARTICULATABLE SURGICAL INSTRUMENTS",
-US Patent Application No. 14 / 575,148, Title of Invention "LOCKING ARRANGEMENTS FOR DETACHABLE SHAFT ASSEMBLES WITH ARTICULATABLE SURGICAL END EFFECTORS",
-US Patent Application No. 14 / 575,130, title of invention "SURGICAL INSTRUMENT WITH AN ANVIL THAT IS SELECTIVELY MOVABLE ABOUT A DISCRETE NON-MOVABLE AXIS RELATEV TO ASTAPLE"
-US Patent Application No. 14 / 575,143, Invention Title "SURGICAL INSTRUMENTS WITH IMPROVEED CLOSE ARRANGEMENTS",
-US Patent Application No. 14 / 575,117, title of invention "SURGICAL INSTRUMENTS WITH ARTICULATABLE END EFFECTORS AND MOVABLE FIRING BEAM SUPPORT ARRANGEMENTS",
-US Patent Application No. 14 / 575,154, Title of Invention "SURGICAL INSTRUMENTS WITH ARTICULATABLE END EFFECTORS AND IMPROVEED FIRING BEAM SUPPORT ARRANGEMENTS",
-US Patent Application No. 14 / 574,493, title of invention "SURGICAL INSTRUMENT ASSEMBLY COMPRISING A FLEXIBLE ARTICULATION SYSTEM", and-US Patent Application No. 14 / 574,500, title of invention "SURGICAL SYSTEM ".

The applicant of the present application owns the following patent applications filed on March 1, 2013, the entire contents of which are incorporated herein by reference:
-US Patent Application No. 13 / 782,295, Invention Title "Artificial Surgical Instruments With Conductive Pathways For Signal Communication", now US Patent Application Publication No. 2014/0246471,
-US Patent Application No. 13 / 782,323, Invention Title "Rotary Powered Articulation Joints For Surgical Instruments", now US Patent Application Publication No. 2014/0246472,
-US Patent Application No. 13 / 782,338, Invention Title "Thumbwheel Switch Arrangements For Surgical Instruments", now US Patent Application Publication No. 2014/0249557,
-US Patent Application No. 13 / 782,499, Invention Title "Electromechanical Device with Signal Relay Arrangement", now US Patent Application Publication No. 2014/0246474,
-US Patent Application No. 13 / 782,460, Invention Title "Multiple Procedure Motor Control for Modular Surgical Instruments", now US Patent Application Publication No. 2014/0246478,
-US Patent Application No. 13 / 782,358, Invention Title "Joystic Switch Attributes For Surgical Instruments", now US Patent Application Publication No. 2014/0246477,
-US Patent Application No. 13 / 782,481, Invention Title "Sensor Straightened End Effector During Removal Through Trocar", now US Patent Application Publication No. 2014/0246479,
-US Patent Application No. 13 / 782,518, Invention Title "Control Methods for Surgical Instruments", now US Patent Application Publication No. 2014/0246475,
-US Patent Application No. 13 / 782,375, Invention Title "Rotary Powered Surgical Instruments With Multiple Surgeons of Freedom", now US Patent Application Publication No. 2014/0246473, and
-US Patent Application No. 13 / 782,536, Invention Title "Surgical Instrument Soft Stop", now US Patent Application Publication No. 2014/0246476.

The applicant of the present application also owns the following patent applications filed on March 14, 2013, the entire contents of which are incorporated herein by reference:
-US Patent Application No. 13 / 803,097, Invention Title "ARTICULATABLE SURGICAL INSTRUMENT COMPRISING A FIRING DRIVE", Currently US Patent Application Publication No. 2014/0263542,
-US Patent Application No. 13 / 803,193, Invention Title "CONTROL ARRANGEMENTS FOR A DRIVE MEMBER OF A SURGICAL INSTRUMENT", now US Patent Application Publication No. 2014/0263537,
-US Patent Application No. 13 / 803,053, Invention Title "INTERCHANGE SHAFT ASSEMBLES FOR USE WITH A SURGICAL INSTRUMENT", now US Patent Application Publication No. 2014/0263564,
-US Patent Application No. 13 / 803,086, Invention title "ARTICULATABLE SURGICAL INSTRUMENT COMPRISING AN ARTICULATION LOCK", now US Patent Application Publication No. 2014/0263541,
-US Patent Application No. 13 / 803,210, Invention Title "SENSOR ARRANGEMENTS FOR ABSOLUTE POSITIONING SYSTEM FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0263538,
-US Patent Application No. 13 / 803,148, Invention Title "MULTI-FUNCTION MOTOR FOR A SURGICAL INSTRUMENT", Currently US Patent Application Publication No. 2014/0263554,
-US Patent Application No. 13 / 803,066, Invention Title "DRIVE SYSTEM LOCKOUT ARRANGEMENTS FOR MODEDULAR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0263565,
-US Patent Application No. 13 / 803,117, Invention Title "ARTICULATION CONTORL SYSTEM FOR ARTICULATABLE SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0263553,
-US Patent Application No. 13 / 803,130, Invention Title "DRIVE TRAIN CONTOROL ARRANGEMENTS FOR MODELAR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0263543, and
-US Patent Application No. 13 / 803,159, Invention Title "METHOD AND SYSTEM FOR OPERATING A SURGICAL INSTRUMENT", now US Patent Application Publication No. 2014/0277017.

The applicant of the present application also owns the following patent application filed on March 7, 2014, the entire contents of which are incorporated herein by reference:
-US Patent Application No. 14 / 200,111, Invention Title "CONTROLL SYSTEMS FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0263539.

The applicant of the present application also owns the following patent applications filed on March 26, 2014, the entire contents of which are incorporated herein by reference:
-US Patent Application No. 14 / 226,106, Invention Title "POWER MANAGEMENT CONTORL SYSTEMS FOR SURGICAL INSTRUMENTS", Currently US Patent Application Publication No. 2015/0272582,
-US Patent Application No. 14 / 226,099, Invention Title "STERILIZATION VERIFICATION CIRCUIT", Currently US Patent Application Publication No. 2015/0272581,
-US Patent Application No. 14 / 226,094, Invention Title "VERIFICATION OF NUMBER OF BATTERY EXCHANGE COUNT", Currently US Patent Application Publication No. 2015/0272580,
-US Patent Application No. 14 / 226,117, Invention Title "POWER MANAGEMENT THROUGH SLEEP OPTIONS OF SEGMENTED CIRCUIT AND WAKE UP CONTROLL", now US Patent Application Publication No. 2015/0272574,
-US Patent Application No. 14 / 226,075, Invention Title "MODULAR POWERED SURGICAL INSTRUMENT WITH DETACHABLE SHAFT ASSEMBLES", now US Patent Application Publication No. 2015/0272579,
-US Patent Application No. 14 / 226,093, Invention Title "FEEDBACK ALGORITHMS FOR MANUAL BAILOUT SYSTEMS FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2015/0272569,
-US Patent Application No. 14 / 226,116, Invention Title "SURGICAL INSTRUMENT UTILIZING SENSOR ADAPATION", Currently US Patent Application Publication No. 2015/0272571,
-U.S. Patent Application No. 14 / 226,071, the title of the invention "SURGICAL INSTRUMENT CONTROLL CIRCUIT HAVING A SAFETY PROCESSOR", now U.S. Patent Application Publication No. 2015/0272578,
-US Patent Application No. 14 / 226,097, Invention Title "SURGICAL INSTRUMENT COMPRISING INTERACTIVE SYSTEMS", Currently US Patent Application Publication No. 2015/0272570,
-US Patent Application No. 14 / 226,126, Invention Title "INTERFACE SYSTEMS FOR USE WITH SURGICAL INSTRUMENTS", Currently US Patent Application Publication No. 2015/0272572,
-US Patent Application No. 14 / 226,133, Invention Title "MODULAR SURGICAL INSTRUMENT SYSTEM", Currently US Patent Application Publication No. 2015/0272557,
-US Patent Application No. 14 / 226,081, Invention title "SYSTEMS AND METHODS FOR CONTROLLING A SEGMENTED CIRCUIT", now US Patent Application Publication No. 2015/02777471,
-US Patent Application No. 14 / 226,076, Invention Title "POWER MANAGEMENT THROUGH SEGMENTED CIRCUIT AND VARIABLE VOLTAGE PROTESTION", now US Patent Application Publication No. 2015/02804424,
-US Patent Application No. 14 / 226,111, Invention Title "SURGICAL STAPLING INSTRUMENT SYSTEM", Currently US Patent Application Publication No. 2015/0272583,
-US Patent Application No. 14 / 226,125, Invention Title "SURGICAL INSTRUMENT COMPRISING A ROTATABLE SHAFT", now US Patent Application Publication No. 2015/0280384.

The applicant of the present application also owns the following patent applications filed on September 5, 2014, the entire contents of which are incorporated herein by reference:
-US Patent Application No. 14 / 479,103, Invention Title "CIRCUITRY AND SENSORS FOR POWERED MEDICAL DEVICE", Currently US Patent Application Publication No. 2016/0066912,
-US Patent Application No. 14 / 479,119, Invention Title "ADJUNCT WITH INTEGRATED SENSOR TO QUANTIFY TISSUE COMPRESSION", now US Patent Application Publication No. 2016/0066914,
-US Patent Application No. 14 / 478,908, Invention Title "MONITORING DEVICE DEGRADATION BASED ON COMPONENT EVALUATION", Currently US Patent Application Publication No. 2016/0066910,
-US Patent Application No. 14 / 478,895, Title of Invention "MULTIPLE SENSORS WITH ONE SENSOR AFFECTING A SECOND SENSOR'S OUTPUT OR INTERPRETATION", now US Patent Application Publication No. 2016/0066909,
-US Patent Application No. 14 / 479,110, Invention Title "USE OF POLARITY OF HALL MAGNET DETECTION TO DETECT MISLOADED CARTRIDGE", now US Patent Application Publication No. 2016/0066915,
-US Patent Application No. 14 / 479,098, Invention Title "SMART CARTRIDGE WAKE UP OPERATION AND DATA RETENTION", Currently US Patent Application Publication No. 2016/0066911,
-US Patent Application No. 14 / 479,115, Invention Title "MULTIPLE MOTOR CONTROL FOR POWERED MEDICAL DEVICE", Currently US Patent Application Publication Nos. 2016/0066916, and-US Patent Application No. 14 / 479,108, The title of the invention, "LOCAL DISPLAY OF TISSUE PARAMETER STABILIZATION", is currently US Patent Application Publication No. 2016/0066913.

The applicant of the present application also owns the following patent applications filed on April 9, 2014, the entire contents of which are incorporated herein by reference:
-US Patent Application No. 14 / 248,590, Invention Title "MOTOR DRIVEN SURGICAL INSTRUMENTS WITH LOCKABLE DUAL DRIVE SHAFTS", now US Patent Application Publication No. 2014/030987,
-US Patent Application No. 14 / 248,581, Title of Invention "SURGICAL INSTRUMENT COMPRISING A CLOSEING DRIVE AND A FIRING DRIVE OPERATED FROM THE SAME ROTATABLE OUTPUT", Currently US Patent Application No. 3059
-US Patent Application No. 14 / 248,595, title of invention "SURGICAL INSTRUMENT SHAFT INCLUDING SWITCHES FOR CONTROLLING THE OPERATION OF THE SURGICAL INSTRUMENT", currently published in U.S. Patent No. 14 / 248,595
-US Patent Application No. 14 / 248,588, Invention Title "POWERED LINEAR SURGICAL STAPLER", Currently US Patent Application Publication No. 2014/0309666,
-US Patent Application No. 14 / 248,591, Invention Title "TRANSMISSION ARRANGEMENT FOR A SURGICAL INSTRUMENT", Currently US Patent Application Publication No. 2014/0305911,
-US Patent Application No. 14 / 248,584, Title of Invention "MODULAR MOTOR DRIVEN SURGICAL INSTRUMENTS WITH ALIGNMENT FEATURES FOR ALIGNING ROTARY DRIVE SHAFTS WITH SURFTS
-US Patent Application No. 14 / 248,587, Invention Title "POWERED SURGICAL STAPLER", Currently US Patent Application Publication No. 2014/0309665,
-US Patent Application No. 14 / 248,586, Invention Title "DRIVE SYSTEM DECOUPLING ARRANGEMENT FOR A SURGICAL INSTRUMENT", now US Patent Application Publication No. 2014/035990, and
-US Patent Application No. 14 / 248,607, title of invention "MODULAR MOTOR DRIVEN SURGICAL INSTRUMENTS WITH STATUS INDICATION ARRANGEMENTS", now US Patent Application Publication No. 2014/0305992.

The applicant of the present application also owns the following patent applications filed on April 16, 2013, the entire contents of which are incorporated herein by reference:
-US Provisional Patent Application No. 61 / 812,365, Title of Invention "SURGICAL INSTRUMENT WITH MULTIPLE FUNCTIONS PERFORMED BY A SINGLE MOTOR",
-US Provisional Patent Application No. 61 / 812,376, Invention Name "LINEAR CUTTER WITH POWER",
-US Provisional Patent Application No. 61 / 812,382, Invention Name "LINEAR CUTTER WITH MOTOR AND PISTOL GRIP",
-US Provisional Patent Application No. 61 / 812,385, the title of the invention "SURGICAL INSTRUMENT HANDLE WITH MULTIPLE ACTION MOTORS AND MOTOR CONTROL", and
-US Provisional Patent Application No. 61 / 812,372, title of invention "SURGICAL INSTRUMENT WITH MULTIPLE FUNCTIONS PERFORMED BY A SINGLE MOTOR".

Many specific details are provided to provide a complete understanding of the overall structure, function, manufacture, and use of embodiments described herein and shown in the accompanying drawings. Well-known behaviors, components, and elements are not described in detail to avoid obscuring the embodiments described herein. It is understood by the reader that the embodiments described and illustrated herein are non-limiting examples, and therefore the particular structural and functional details disclosed herein are typical and exemplary. It will be understood to get. Modifications and changes to them can be made without departing from the claims.

The terms "comprise" (any form of comprise, such as "comprises" and "comprising"), "have" (any form of have, such as "has" and "having"), "include ( ”(Any word form of include, such as“ includes ”and“ inclusion ”), and“ contain ”(any word form of content, such as“ context ”and“ contouring ”) are open concatenations. It is a verb. As a result, a surgical system, device, or device that "includes", "has", "contains", or "contains" one or more elements is one or more of them. It has elements, but is not limited to having only one or more of them. Similarly, one or more elements of a system, device, or device that "equips", "has", "contains", or "contains" one or more features. However, it is not limited to having only one or more of these characteristics.

The terms "proximal" and "distal" are used herein with reference to the clinician operating the handle portion of the surgical instrument. The term "proximal" refers to the part closest to the clinician, and the term "distal" refers to the part located away from the clinician. For convenience and clarity, it is further understood that spatial terms such as "vertical", "horizontal", "top", and "bottom" can be used with respect to the drawings herein. Let's go. However, surgical instruments are used in many orientations and positions, and these terms are not intended to be limited and / or absolute.

Various exemplary devices and methods are provided for performing laparoscopic and minimally invasive surgical procedures. However, it is readily understood by the reader that the various methods and devices disclosed herein can be used in many surgical procedures and applications, including those associated with, for example, open surgical procedures. Will. By reading "Forms for Carrying Out the Invention" herein, the reader can read that the various instruments disclosed herein are incised or punctured into tissue, eg, through a natural opening. You will further understand that it can be inserted into the body in any way, such as through a hole. The working part or end effector part of these instruments can also be inserted directly into the patient's body or through an access device with a passage of action capable of advancing the end effector and elongated shaft of the surgical instrument. You can also do it.

Surgical staple fastening systems can include a shaft and an end effector that extends from the shaft. The end effector includes a first jaw and a second jaw. The first jaw comprises a staple cartridge. The staple cartridge is insertable into and detachable from the first jaw, but the staple cartridge is not replaceable from the first jaw, or at least not easily replaceable, other Embodiments are also recalled. The second jaw comprises an anvil configured to deform the staple ejected from the staple cartridge. The second jaw is swivel relative to the first jaw about the closed axis, but other embodiments are also recalled in which the first jaw is swivel relative to the second jaw. .. Surgical staple fastening systems further include joint joints configured to allow the end effector to rotate, i.e., range of motion with respect to the shaft. The end effector is rotatable about a range of motion that extends through the joint. Other embodiments that do not include joints are also recalled.

The staple cartridge includes a cartridge body. The cartridge body includes a proximal end, a distal end, and a deck extending between the proximal and distal ends. In use, the staple cartridge is positioned on the first side of the tissue to be stapled and the anvil is located on the second side of the tissue. The anvil is moved towards the staple cartridge to compress and clamp the tissue against the deck. Subsequently, the staples that are retractably stored in the cartridge body can be deployed in the organization. The cartridge body includes a staple cavity defined therein, and the staples are retractably stored in the staple cavity. The staple cavities are arranged in six longitudinal rows. The three rows of staple cavities are located on the first side of the longitudinal slot and the three rows of staple cavities are located on the second side of the longitudinal slot. Other arrangements of staple cavities and staples are also possible.

The staples are supported by a staple driver inside the cartridge body. The driver can move between the first, i.e., unlaunched position and the second, i.e., the launched position, where the staples are ejected from the staple cavity. The driver includes an elastic member that is held within the cartridge body by a retainer that extends around the bottom of the cartridge body and is configured to grip the cartridge body and hold the holder against the cartridge body. Drivers can be moved between their unfired positions and their fired positions by threads. The thread can move between the proximal position adjacent to the proximal end and the distal position adjacent to the distal end. The thread slides under the driver and has multiple ramps configured to lift the driver, on which the staples are supported and towards the anvil.

In addition to the above, the thread is moved distally by the launching member. The launching member is configured to contact the thread and push the thread towards the distal end. Longitudinal slots defined within the cartridge body are configured to receive launching members. The anvil also includes a slot configured to receive the launching member. The firing member further comprises a first cam that engages the first jaw and a second cam that engages the second jaw. When advancing the launching member distally, the first cam and the second cam can control the distance between the deck of the staple cartridge and the anvil, i.e. the tissue gap. The launcher also comprises a knife configured to incise the captured tissue between the staple cartridge and the anvil. It is desirable that the knife be positioned at least partially proximal to the slope so that the staples are ejected forward of the knife.

FIG. 1 shows a motor-driven surgical system 10 that may be used to perform a variety of different surgical procedures. In the illustrated embodiment, the motor-driven surgical system 10 comprises a selectively reconfigurable housing or handle assembly 20 attached to an embodiment of the interchangeable surgical tool assembly 1000. For example, the system 10 shown in FIG. 1 comprises an interchangeable surgical tool assembly 1000 with a surgical cutting and fastening instrument, which can be referred to as an end cutter. As will be discussed in more detail below, interchangeable surgical tool assemblies are adapted to support different sizes and types of staple cartridges and have different shaft lengths, sizes, types, etc. An end effector may be provided. For example, such a configuration may utilize any one or more fasteners suitable for fastening the tissue. For example, a fastener cartridge in which a plurality of fasteners are retractably stored can be detachably inserted and / or attached to an end effector of a surgical tool assembly. Other surgical tool assemblies may be used interchangeably with the handle assembly 20. For example, the replaceable surgical tool assembly 1000 may be removed from the handle assembly 20 and replaced with a different surgical tool assembly configured to perform other surgical procedures. In other configurations, the surgical tool assembly may not be interchangeable with other surgical tool assemblies, eg, essentially comprising a dedicated shaft that is non-detachably fixed or connected to the handle assembly 20. May be good. Surgical tool assemblies can also be referred to as elongated shaft assemblies. The surgical tool assembly may be reusable, or in other configurations, the surgical tool assembly may be designed to be discarded after a single use.

As you read through this "Modes for Carrying Out the Invention", the various forms of interchangeable surgical tool assemblies disclosed herein are also effectively used in connection with robotic surgical systems. It will be understood that it can be done. Thus, the terms "housing" and "housing assembly" also generate at least one control motion that can be used to actuate the elongated shaft assemblies and their respective equivalents disclosed herein. It may include a housing or similar portion of a robotic system that accommodates or otherwise operably supports at least one drive system that is configured to apply. The term "frame" may refer to a portion of a handheld surgical instrument. The term "frame" may also refer to a portion of a robot-controlled surgical instrument and / or a portion of a robotic system that may be used to operably control the surgical instrument. For example, the surgical tool assemblies disclosed herein are incorporated herein by reference in various robot systems, instruments, components, and methods, eg, US Patent Application No. 13/118, 241 may be used in conjunction with the title of the invention "SURGICAL STAPLING INSTRUMENTS WITH ROTATABLE STAPLE DEPLOYMENT ARRANGEMENTS", which is currently disclosed in, but not limited to, US Patent Application Publication No. 2012/02987719.

From here on, with reference to FIGS. 1 and 2, the housing assembly or handle assembly 20 may be made of plastic, polymer material, metal, etc., and has suitable fastener configurations such as adhesives, screws, press fits. It comprises a main housing portion 30, which may be formed from a pair of housing segments 40, 70, which may be coupled to each other by a mechanism, a snap-fit mechanism, a latch, or the like. As will be discussed in more detail below, the main housing portion 30 operably supports a plurality of internal drive systems. The drive system is configured to generate a variety of control motions and apply them to the corresponding parts of an operably mounted interchangeable surgical tool assembly. The handle assembly 20 further comprises a grip portion 100 that is movably coupled to the main housing portion 30 and is configured to be gripped and operated by a clinician at various positions relative to the main housing portion 30. The grip portion 100 may be made of plastic, polymer material, metal, etc. for assembly and maintenance purposes and has suitable fastener configurations such as adhesives, screws, press fit mechanisms, snap fit mechanisms, latches and the like. It may be formed from a pair of grip segments 110, 120 that are coupled to each other by.

As can be seen from FIG. 2, the grip portion 100 comprises a grip housing 130 defining a hollow cavity 132 configured to operably support a drive motor and gearbox, which will be discussed in more detail below. Be prepared. The upper portion 134 of the grip housing 130 is configured to extend through an opening 80 in the main housing portion 30 and is configured to be swivelly journaled on the swivel shaft 180. The swivel shaft 180 defines a swivel axis designated as "PA". See FIG. For reference purposes, the handle assembly 20 defines a handle axis designated as "HA". The handle axis may be parallel to the shaft axis "SA" of the elongated shaft assembly of the interchangeable surgical tool operably attached to the handle assembly 20. The swivel axis PA is lateral to the handle axis HA. See FIG. With such a configuration, the grip portion 100 can be swiveled relative to the main housing portion 30 to a position most suitable for the type of interchangeable surgical tool assembly connected to the handle assembly 20 about the swivel axis PA. Is. The grip housing 130 generally defines a grip axis designated as "GA". See FIG. If the replaceable surgical tool assembly connected to the handle assembly 20 comprises, for example, an end cutter, the clinician may have the grip portion 100 relative to the main housing portion 30 and the grip axis GA relative to the handle axis HA. It may be desired to be positioned vertically or substantially vertically (referred to herein as the "first grip position"). See FIG. However, if the handle assembly 20 is used to control, for example, an interchangeable surgical tool assembly with a ring stapler, the clinician will have the grip portion 100 with respect to the main housing portion 30 with the grip axis GA. You may want to turn to a position at 45 degrees or approximately 45 degrees with respect to the handle axis HA or at an appropriate acute angle (angle "H2"). This position is referred to herein as the "second grip position." FIG. 5 illustrates the grip portion 100 on the virtual line at the second grip position.

From here with reference to FIGS. 3-5, the handle assembly 20 also has a grip lock system (generally, generally) for selectively locking the grip portion 100 in a desired orientation with respect to the main housing portion 30. (Specified as 150). In some configurations, the grip lock system 150 comprises an arched series 152 with pointed teeth 154. The teeth 154 are separated from each other, forming a lock groove 156 between them. Each lock groove 156 corresponds to a particular lock angle position for the grip portion 100. For example, in at least one configuration, the teeth 154 and the lock groove or "lock position" 156 are such that the grip portion 100 is locked between the first grip position and the second grip position at intervals of 10 to 15 degrees. Is arranged to enable. This arrangement may utilize two stop positions that are adjusted according to the type of equipment used (shaft arrangement). For example, for the end cutter shaft arrangement, it may be approximately 90 degrees with respect to the shaft, and for the annular stapler arrangement, the angle may be approximately 45 degrees with respect to the shaft, while advancing towards the surgeon. The grip lock system 150 further comprises a lock button 160 having a locking portion configured to lock the lock groove 156. For example, the lock button 160 is rotatably mounted on the swivel pin 131 at the main handle portion 30 so that the lock button 160 can swivel and engage the corresponding lock groove 156. There is. The lock spring 164 functions to engage the lock button 160 with the corresponding lock groove 156 or to urge the lock position. The locking portion and tooth configuration serve to allow the tooth 154 to slide beyond the locking portion when the clinician presses the lock button 160. Therefore, in order to adjust the angular position of the grip portion 100 with respect to the main housing portion 30, the clinician presses the lock button 160 and then turns the grip portion 100 to a desired angular position. When the grip portion 100 moves to the desired position, the clinician releases the lock button 160. The lock spring 164 will then urge the lock button 160 toward the series of teeth 154 so that the lock portion enters the corresponding lock groove 156 and hold the grip portion 100 in that position during use. ..

The handle assembly 20 operably supports a first rotary drive system 300, a second rotary drive system 320, and a third axial drive system 400. The rotary drive systems 300 and 320 are each driven by a motor 200 operably supported by the grip portion 100. As can be seen from FIG. 2, for example, the motor 200 is supported in a cavity 132 in the grip portion 100 and has a gearbox assembly 202. The gearbox assembly 202 has an output drive shaft 204 projecting from it. In various forms, the motor 200 may be, for example, a brushed DC drive motor having a maximum rotation speed of about 25,000 RPM. In other configurations, the motor may include a brushless motor, a cordless motor, a synchronous motor, a stepper motor, or any other suitable electric motor. The motor 200 may include a removable power pack 212 in one form, or may be powered by a power source 210. The power supply 210 is, for example, various power supplies disclosed in more detail in US Patent Application Publication No. 2015/0272575, the title of the invention "SURGICAL INSTRUMENT COMPRISING A SENSOR SYSTEM", the entire disclosure of which is incorporated herein by reference. It may have any one of the configurations. In the illustrated configuration, for example, the power pack 212 may include a proximal housing portion 214 that is configured to be attached to the distal housing portion 216. The proximal housing portion 214 and the distal housing portion 216 are configured to operably support a plurality of batteries 218 inside. Each battery 218 may include, for example, lithium ion (“LI”) or other suitable battery. The distal housing portion 216 is configured to be detachably and operably attached to the handle circuit board assembly 220, which is also operably coupled to the motor 200. The handle circuit board assembly 220 can also be commonly referred to herein as a "control system or CPU 224". A large number of batteries 218 that can be connected in series can be used as a power source for the handle assembly 20. In addition, the power supply 210 may be replaceable and / or rechargeable. In other embodiments, the surgical instrument 10 may be powered by alternating current (AC), for example. The motor 200 may be controlled by a rocker switch 206 attached to the grip portion 100.

As outlined above, the motor 200 is operably connected to the gearbox assembly 202 with the output drive shaft 204. A driver bevel gear 230 is attached to the output drive shaft 204. The motor 200, gearbox assembly 202, output drive shaft 204, and driver bevel gear 230 may also be collectively referred to herein as "motor assembly 231". The driver bevel gear 230 interfaces with the driven bevel gear 234 attached to the system drive shaft 232 and the swivel bevel gear 238 journaled to the swivel shaft 180. The driven bevel gear 234 is located on the system drive shaft 232 at an engagement position (FIG. 5) in which the driven bevel gear 234 meshes with the driver bevel gear 230 and an engagement disengagement position in which the driven bevel gear 234 disengages with the driver bevel gear 230. It is movable in the axial direction to and from (FIG. 14). The drive system spring 235 is journaled between the driven bevel gear 234 and the proximal end flange 236 formed in the proximal portion of the system drive shaft 232. See FIGS. 4 and 14. As will be discussed in more detail below, the drive system spring 235 functions to urge the driven bevel gear 234 to disengage from the driver bevel gear 230. The swivel bevel gear 238 facilitates swivel movement of the output drive shaft 204 and the driver bevel gear 230 with respect to the grip portion 100 with respect to the main handle portion 30.

In the illustrated example, the system drive shaft 232 interfaces with a rotary drive selector system (generally designated 240). In at least one embodiment, for example, the rotary drive selector system 240 comprises a shifter gear 250 that is selectively movable between the first rotary drive system 300 and the second rotary drive system 320. As can be seen from FIGS. 6-9, for example, the drive selector system 240 includes a shifter mounting plate 242 immovably mounted within the main handle portion 30. For example, the shifter mounting plate 242 may be frictionally held between mounting lugs (not shown) formed in housing segments 40, 70 or held therein in some way by screws, adhesives, etc. good. Further referring to FIGS. 6-9, the system drive shaft 232 has a center or system drive gear 237 extending through a hole to the shifter mounting plate 242 and non-rotatably mounted therein. For example, the central drive gear 237 may be attached to the system drive shaft 232 by a keyway configuration 233. See FIGS. 6-9. In other configurations, the system drive shaft 232 may be rotatably supported by a shifter mounting plate 242 by a corresponding bearing (not shown) mounted therein. In any case, the rotation of the system drive shaft 232 will result in the rotation of the central drive gear 234.

As can be seen from FIG. 3, the first drive system 300 includes a first drive socket 302 rotatably supported by a distal wall 32 formed in the main handle portion 30. The first drive socket 302 may include a first body portion 304 having a spline socket formed therein. The first drive gear 306 is formed on the first main body portion 304 or is immovably attached to the first main body portion 304. The first body portion 304 may be rotatably supported in a corresponding hole or passage provided in the distal wall 32, or a corresponding bearing attached to the distal wall 32 (not shown). ) May be rotatably supported. Similarly, the second rotational drive system 320 includes a second drive socket 322 rotatably supported by the distal wall 32 of the main handle portion 30. The second drive socket 322 may include a second body portion 324 having an internally formed spline socket. The second drive gear 326 is formed on or non-rotatably attached to the second body portion 324. The second body portion 324 may be rotatably supported in a corresponding hole or passage provided in the distal wall 32, or a corresponding bearing attached to the distal wall 32 (not shown). ) May be rotatably supported. The first and second drive sockets 302 and 322 are separated from each other on each outer side surface of the handle axis HA. See, for example, FIG.

As mentioned above, in the illustrated example, the rotary drive selector system 240 includes a shifter gear 250. As can be seen from FIGS. 6-9, the shifter gear 250 is rotatably mounted on the idler shaft 252 movably supported in the bow slot 244 of the shifter mounting plate 242. The shifter gear 250 is mounted so as to rotate freely on the idler shaft 252 and maintain engagement with the center drive gear 234. The idler shaft 252 is connected to the end of the shaft 262 of the shifter solenoid 260. The shifter solenoid 260 is pinned to the main handle housing 30 so that when the shifter solenoid 260 is activated, the shifter gear 250 moves so as to mesh with either the first drive gear 306 or the second drive gear 326. Or installed in some way. For example, in some configurations, the shifter gear 250 is center driven so that when the solenoid shaft 262 retracts (FIGS. 6 and 7), the actuation of the motor 200 will result in rotation of the first drive socket 302. It meshes with the gear 234 and the first drive gear 306. As can be seen from FIGS. 6 and 7, the shifter spring 266 may be used to urge the shifter gear 250 to the first operating position. Therefore, the shifter spring 266 will automatically urge the shifter gear 250 to the first position even if power to the surgical instrument 10 is lost. When the shifter gear 250 is in that position, subsequent operation of the motor 200 will result in rotation of the first drive socket 302 of the first rotational drive system 300. When the shifter solenoid is activated, the shifter gear 250 is moved on the second drive socket 322 so as to mesh with the second drive gear 326. The operation of the motor 200 will then result in the operation or rotation of the second drive socket 322 of the second rotational drive system 320.

As will be discussed in more detail below, the first and second rotary drive systems 300, 320 are used to move various component parts of the interchangeable surgical tool assembly connected to them. You may. As mentioned above, in at least one configuration, the shifter spring 266 will urge the shifter gear 250 to the first position even if power is lost to the motor during operation of the replaceable surgical tool assembly. There will be. The application of the rotational drive motion to the first drive system 300 should be reversed in response to the movement of the component portion of the replaceable surgical tool assembly to allow the replaceable surgical tool assembly to be removed from the patient. There may be. The illustrated example handle assembly 20 is, for example, a manually actuable "relief" system (generally) for manually applying rotational drive motion to a first rotational drive system 300 in the scenario described above. , 330) is used.

From here, with reference to FIGS. 3, 10, and 11, the illustrated rescue system 330 comprises a rescue drive train 332 with a planetary gear assembly 334. In at least one embodiment, the planetary gear assembly 334 comprises a planetary gear housing 336 that houses a planetary gear configuration (not shown) that includes a planetary bevel gear 338. The planetary gear assembly 334 includes a relief drive shaft 340 that is operably connected to a planetary gear configuration within the planetary gear housing 336. The rotation of the planetary bevel gear 338 causes the planetary gear configuration, which finally rotates the relief drive shaft 340, to rotate. The relief drive gear 342 is journaled on the relief drive shaft 340 so that the relief drive gear 342 can move axially on the relief drive shaft 340 and rotate with it. The relief drive gear 342 is movable between the spring stop flange 344 formed on the relief drive shaft 340 and the shaft end stop 346 formed on the distal end of the relief drive shaft 340. The relief shaft spring 348 is journaled on the relief drive shaft 340 between the relief drive gear 342 and the spring stop flange 344. The relief shaft spring 348 urges the relief drive gear 342 distally on the relief drive shaft 340. When the relief drive gear 342 is in the most distal position on the relief drive shaft 340, it meshes with the relief drive gear 350 that is non-rotatably attached to the system drive shaft 232. See FIG.

With reference to FIGS. 12 and 13, the relief system 330 comprises a relief actuator assembly or a relief handle assembly 360 that facilitates the manual application of relief drive motion to the relief drive train 332. As can be seen from those figures, the relief handle assembly 360 comprises a relief bevel gear assembly 362, including a relief bevel gear 364 and a ratchet gear 366. The relief handle assembly 360 further comprises a relief handle 370 movably connected to the relief bevel gear assembly 362 by a swivel yoke 372 rotatably attached to the ratchet gear 366. The relief handle 370 is rotatably connected to the swivel yoke 372 by a pin 374 for selective swivel movement between the retracted position "SP" and the actuating position "AP". See FIG. The handle spring 376 is used to urge the relief handle 370 to the actuating position AP. In at least one configuration, the angle between the axis SP representing the storage position and the axis AP representing the operating position may be, for example, approximately 30 degrees. See FIG. As can be seen from FIG. 13, the relief handle assembly 360 further comprises a ratchet pole 378 rotatably attached to a cavity or hole 377 in the swivel yoke 372. The ratchet pole 378 is configured to mesh with the ratchet gear 366 when rotated in the working direction "AD" and then to be disengaged when rotated in the opposite direction. .. The ratchet spring 384 and the ball member 386 are movably supported by the cavity 379 in the swivel yoke 372, and when the relief handle 370 is activated (ratcheted), to lock the detents 380, 382 in the ratchet pole 378. Function.

With reference to FIGS. 3 and 10, the rescue system 330 further comprises a relief access panel 390 that can be steered between the open and closed positions. In the illustrated configuration, the rescue access panel 390 is configured to be detachably connected to the housing segment 70 of the main housing portion 30. Thus, at least in that embodiment, when the rescue access panel 390 is detached or removed from the main housing portion 30, it is said to be in the "open" position, and the rescue access panel 390 is said to be in the main housing portion 30 as illustrated. When attached to, it is said to be in the "closed" position. However, other embodiments are contemplated in which the access panel is movably coupled so that it remains attached to the main housing portion when the access panel is in the open position. For example, in such an embodiment, the access panel may be swivelably attached to the main housing portion or slidably attached to the main housing portion, with open and closed positions. It may be maneuverable between. In the illustrated example, the rescue access panel 390 is configured to snap engage with the corresponding portion of the housing segment 70 and hold it detachably in the "closed" position. Other forms of mechanical fasteners, such as screws, pins, etc., may also be used.

Regardless of whether the rescue access panel 390 is removable from the main housing portion 30 or remains movably attached to the main housing portion 30, the rescue access panel 390 projects from its back side or in any way, respectively. The drive system lock member or yoke 392 and the relief lock member or yoke 396 formed on the drive system lock member or yoke 396 are provided. The drive system lock yoke 392 is such that when the rescue access panel 390 is attached to the main housing portion 30 (ie, the rescue access panel is in the "closed" position), it receives a portion of the system drive shaft 232 internally. It comprises a drive shaft notch 394 that is configured. When the rescue access panel 390 is located or installed in the closed position, the drive system lock yoke 392 urges the driven bevel gear 234 to mesh with the driver bevel gear 230 (against the urging of the drive system spring 235). Works for In addition, the relief lock yoke 396 is configured to internally receive a portion of the relief drive shaft 340 when the relief access panel 390 is mounted or positioned in a closed position, the relief drive shaft notch 397. To be equipped. As can be seen from FIGS. 5 and 10, the relief lock yoke 396 also urges the relief drive gear 342 to disengage the relief drive gear 350 (with respect to the bias of the relief shaft spring 348). Works to do. Therefore, the relief lock yoke 396 prevents the relief drive gear 342 from interfering with the rotation of the system drive shaft 232 when the relief access panel 390 is mounted or in the closed position. In addition, the relief lock yoke 396 includes a handle notch 398 for engaging the relief handle 370 and maintaining it in the retracted position SP.

4, 5, and 10 illustrate the configuration of drive system components and relief system components when the rescue access panel 390 is mounted or in the closed position. As can be seen from those figures, the drive system lock member 392 urges the driven bevel gear 234 to mesh with the driver bevel gear 230. Thus, when the rescue access panel 390 is mounted or in the closed position, the operation of the motor 200 will result in the rotation of the driver bevel gear 230 and ultimately the rotation of the system drive shaft 232. In that position, the relief lock yoke 396 also functions to urge the relief drive gear 342 to disengage the relief drive gear 350 on the system drive shaft 232. Thus, when the rescue access panel 390 is mounted in the closed position or in the closed position, the drive system can be actuated by the motor 200 and the rescue system 330 from the application of any actuating motion to the system drive shaft 232. Cut or prevent. To activate the rescue system 330, the clinician first removes the rescue access panel 390 or moves the rescue access panel 390 to the open position in some way. By this operation, the drive system lock member 392 is released from the engagement with the driven bevel gear 234, whereby the drive system spring 235 is urged to disengage the driven bevel gear 234 from the driver bevel gear 230. It becomes possible to do. In addition, removal of the relief access panel 390 or movement of the relief access panel to the open position also results in disengagement of the relief lock yoke 396 with the relief drive gear 342, thereby causing the relief shaft spring 348 to disengage. The relief drive gear 342 can be urged on the system drive shaft 232 to mesh with the relief drive gear 350. Therefore, the rotation of the relief drive gear 342 will result in the rotation of the relief drive gear 350 and the system drive shaft 232. Removal of the relief access panel 390 or movement of the relief access panel 390 to the open position also allows the handle spring 376 to urge the relief handle 370 to the operating position shown in FIGS. 11 and 14. When in that position, the clinician can manually ratchet the rescue handle 370 to the ratchet direction RD, which results in the rotation of the ratchet bevel gear 364 (eg, clockwise in FIG. 14), which ultimately results in ratcheting. Brings the application of backward rotation motion to the system drive shaft 232 through the rescue drive train 332. The clinician has rotated the relief handle 370 at many times and the system drive shaft 232 at many times sufficiently to retract the components of the surgical end effector portion of the surgical tool assembly attached to the handle assembly 20. You may ratchet until. Once the rescue system 330 has been fully manually activated, the clinician then replaces the rescue access panel 390 (ie, returning the rescue access panel 390 to the closed position) to the drive system lock member 392 with a driven bevel gear. The 234 is urged to mesh with the driver bevel gear 230, and the relief lock yoke 396 is urged to disengage the relief drive gear 342 from the relief drive gear 350. As discussed above, the shifter spring 266 will urge the shifter solenoid 260 to the first operating position when power is lost or interrupted. Also, the activation of the rescue system 330 will result in the application of reverse or backward motion to the first rotary drive system 300.

As discussed above, surgical staple fastening devices may include, for example, a manually actuated relief system configured to retract the staple firing drive. In many cases, the rescue system may need to be operated more than once and / or cranked to fully retract the staple firing drive. In such cases, users of staple fasteners may forget how many times the baleout was cranked and / or somehow confused how much the firing drive needs to be retracted further. There is a risk of doing so. A system is provided in which a stapler is configured to detect the position of the launch member of the launch drive, determine the distance at which the launch member needs to be retracted, and display that distance to the user of the surgical instrument. Various embodiments are recalled.

In at least one embodiment, the surgical staple fastening device comprises one or more sensors configured to detect the position of the launching member. In at least one case, the sensor may include, for example, a Hall effect sensor and may be located on the shaft and / or end effector of the staple fastener. The sensor signals the controller of the surgical stapler, which in turn signals the display on the surgical stapler. The controller compares the actual position of the launcher with the data or reference position (including the fully retracted position of the launcher) and calculates the distance between the actual position of the launcher and the reference position, i.e. the remaining distance. It has a microprocessor configured to.

In addition to the above, the display includes, for example, an electronic display, and the controller is configured to display the remaining distance on the electronic display in any suitable manner. In at least one case, the controller displays a progress bar on the display. In such cases, for example, an empty progress bar can indicate that the launching member is at the end of its firing stroke, and a full progress bar can indicate that the launching member has completely retracted. can. In at least one case, for example, 0% can indicate that the launching member is at the end of its firing stroke and 100% can represent that the launching member has completely retracted. In certain cases, the controller is configured to show on the display how much relief mechanism needs to be activated to retract the launcher to its fully retracted position.

In addition to the above, the activation of the rescue mechanism can operably disconnect the battery or power supply of the surgical stapler from the electric motor of the launch drive. In at least one embodiment, the actuation of the rescue mechanism presses a switch that electrically disconnects the battery from the electric motor. Such a system would prevent the electric motor from resisting the manual retreat of the launcher.

The illustrated handle assembly 20 also supports a third axial drive system (generally designated 400). As can be seen from FIGS. 3 and 4, the third axial drive system 400 includes, in at least one form, a solenoid 402 having a third drive actuator member or rod 410 projecting from it. The distal end 412 of the third drive actuator member 410 is an internally formed third drive cradle to receive the corresponding portion of the drive system component of the operably mounted interchangeable surgical tool assembly. Or it has a socket 414. The solenoid 402 is wired to or communicates with the handle circuit board assembly 220 and the control system or CPU 224 in some way. In at least one configuration, the solenoid 402 is "spring loaded" so that when the solenoid 402 is inactive, its spring component urges the third drive actuator 410 to return to the inactive start position. ..

As mentioned above, the reconfigurable handle assembly 20 may be advantageously utilized to activate a variety of different interchangeable surgical tool assemblies. To that end, the handle assembly 20 comprises a tool mounting portion (generally designated 500) for operably connecting the replaceable surgical tool assembly to it. In the illustrated example, the tool mounting portion 500 has two inwardly facing dovetail receiving slots 502 configured to engage the corresponding portion of the tool mounting module portion of the replaceable surgical tool assembly. Be prepared. Each dovetail receiving slot 502 may be tapered or, in other words, somewhat V-shaped. The dovetail receiving slot 502 is configured to detachably receive the corresponding tapered mounting or lug portion formed on a portion of the tool mounting nozzle portion of the replaceable surgical tool assembly. Each interchangeable surgical tool assembly may also include a latch system configured to detachably engage with the corresponding retaining pocket 504 formed in the tool mounting portion 500 of the handle assembly 20.

Various interchangeable surgical tool assemblies are operable to a "main" rotary drive system and a second rotary drive system 320 that are configured to be operably connected or aligned with the first rotary drive system 310. It may have a "secondary" rotary drive system that is configured to be connected or interfaced. Primary and secondary rotational drive systems may be configured to provide various rotational motions to parts of a particular type of surgical end effector that comprises a portion of an interchangeable surgical tool assembly. Tool mounting portion of the handle assembly 20 to facilitate the operable connection of the primary rotational drive system to the first rotational drive system and the operational connection of the secondary drive system to the second rotational drive system 320. The 500 also aligns the primary rotary drive system on the handle assembly 20 to the first rotary drive system 300 and the secondary rotary drive system on the handle assembly 20 to the second rotary drive system 320. A pair of inserts configured to distally urge a portion of the primary and secondary rotary drive system of the interchangeable surgical tool assembly during the coupling process to facilitate operational coupling. A lamp 506 is provided.

The interchangeable surgical tool assembly may also include a "tertiary" axial drive system for applying axial motion to the corresponding portion of the surgical end effector of the interchangeable surgical tool assembly. In order to facilitate the operable connection of the tertiary axial drive system on the handle assembly 20 to the third axial drive system 400, the third drive actuator member 410 is internally provided with a tertiary axial drive system. It is provided in socket 414, which is configured to operably accept lugs or other parts.

The replaceable tool assembly 2000 is illustrated in FIG. The interchangeable tool assembly 2000 is similar to the interchangeable tool assembly 1000 in many respects, but differs from the interchangeable tool assembly 1000 in certain other respects. For example, the replaceable assembly 2000 is a ring-shaped stapled assembly. The ring-shaped stapled assembly 2000 comprises a shaft portion 2100 and an end effector 2200, primarily with reference to FIGS. 15 and 16. The shaft portion 2100 comprises, for example, a proximal portion that can be detachably attached to the handle assembly 20. The end effector 2200 comprises a first portion 2210 rotatably attached to the shaft portion 2100 around the joint joint 2300. The end effector 2200 further comprises a second portion 2220 detachably attached to the first portion 2210. The second portion 2220 comprises a cartridge portion 2222 comprising an annular array of staple cavities 2224 defined internally and staples housed in each staple cavity 2224. The second portion 2220 further comprises an anvil 2230, which is registered with the tissue compression surface 2232 and the staple cavity 2224 to deform the staple as it is ejected from the staple cavity 2224. It comprises an annular array of forming pockets or forming pockets 2234 (FIG. 27), which are configured as such.

In addition to the above, again with reference to FIGS. 15 and 16, the second portion 2220 of the end effector 2200 can be selectively attached to and from the first portion 2210 of the end effector 2200. It can be selectively removed. The second portion 2220 comprises an outer housing 2227 comprising a proximal connector 2229 configured to be received within an opening defined in the housing 2217 of the first portion 2210 or chamber 2218. The mating between the connector 2229 of the housing 2227 and the housing 2217 of the first portion 2210 is close. Press-fitting between the connector 2229 and the housing 2217 can prevent the second portion 2220 from accidentally moving in the longitudinal and / or rotational directions with respect to the first portion 2210. In various cases, the detent member can be used to detachably secure the second portion 2220 of the end effector 2200 to the first portion 2210.

With reference to FIGS. 15 and 35-38, the second portion 2220 of the end effector 2200 may be another second portion, such as a second portion 2220', a second portion 2220'', a second portion. Is interchangeable with part 2220'''and / or another second part 2220 and the like. The second portion 2220 ″, 2220 ″, and 2220 ″ ″ are similar to the second portion 2220 in many respects. For example, each second portion 2220, 2220 ′, 2220 ″, and 2220 ″ ″ comprises an internally defined central opening 2226. However, the second portion 2220 ″, 2220 ″, and 2220 ″ ″ are different from the second portion 2220 in other respects. For example, the second portion 2220'has a diameter larger than that of the second portion 2220. Further, the annular array of staple cavities 2224 defined in the second portion 2220'has a larger circumference than the annular array of staple cavities 2224 defined in the second portion 2220. Similarly, the second portion 2220'' has a diameter larger than the second portion 2220', and the annular array of staple cavities 2224 defined in the second portion 2220'' has a second portion 2220'. It has a larger peripheral diameter than the annular array of staple cavities 2224 defined in. Similarly, the second portion 2220'''' has a diameter larger than the second portion 2220'', and the annular array of staple cavities 2224 defined in the second portion 2220'''' is the second. It has a larger circumference than the annular array of staple cavities 2224 defined in the portion 2220''.

In addition to the above, the anvil 2230 is interchangeable with other anvils such as anvil 2230', anvil 2230 ", anvil 2230", and / or another anvil 2230. Anvil 2230 ″, 2230 ″, and 2230 ″ are similar to Anvil 2230 in many respects. For example, each anvil 2230, 2230 ″, 2230 ″, and 2230 ″ ″ comprises a longitudinal shaft 2236 with a connecting flange 2238. However, Anvil 2230 ″, 2230 ″, and 2230 ″ ″ are different from Anvil 2230 in other respects. For example, the anvil 2230'has a diameter larger than the anvil 2230. Further, the annular array of forming pockets 2234 defined in the anvil 2230'is defined in the anvil 2230 such that the forming pocket 2234 remains aligned with the staple cavity 2224 defined in the second portion 2220'. It has a larger circumference than the annular array of forming pockets 2234. Similarly, the anvil 2230'' has a diameter larger than the anvil 2230', and the annular array of forming pockets 2234 defined in the anvil 2230'' has the forming pocket 2234 defined in the second portion 2220''. It has a larger circumference than the annular array of forming pockets 2234 defined in the anvil 2230'so that it remains aligned with the staple cavity 2224. Similarly, the anvil 2230'''' has a diameter larger than the anvil 2230'', and the annular array of forming pockets 2234 defined in the second portion 2220'''' has the forming pocket 2234 as the second portion. It has a larger circumference than the annular array of forming pockets 2234 defined in the anvil 2230'' so that it remains aligned with the staple cavity 2224 defined in 2220''.

Primarily with reference to FIG. 17, the shaft portion 2100 comprises a proximal connector 2120 and an elongated shaft portion 2110 extending distally from the proximal connector 2120. The proximal connector 2120 comprises a first input 2318 and a second input 2418. The first input 2318 is operably connected to the end effector joint system and the second input 2418 is operably connected to the end effector clamp and staple firing system. The first input 2318 and the second input 2418 may operate in any suitable order. For example, the first input 2318 can rotate in the first direction in order to joint the end effector 2200 in the first direction, and correspondingly move the end effector 2200 in the second direction. It can rotate in a second direction for joint movement. Once the end effector 2200 is suitably articulated, the second input 2428 can then rotate to close the anvil 2230 and clamp tissue to the cartridge portion 2222 of the end effector 2200. As discussed in more detail below, the second input 2428 may then operate to launch staples from the staple cavity 2224 and incis the tissue trapped within the end effector 2200. In various alternative embodiments, the first input 2318 and the second input 2328 may operate in any suitable order and / or at the same time.

The first input 2318 is attached to the proximal end of the joint shaft 2310 which is rotatably attached to the shaft portion 2010. Primarily with reference to FIGS. 20 and 21, the rotary joint shaft 2310 comprises a distal end and a worm gear 2312 attached to the distal end. The worm gear 2312 is screwed into the joint slide 2320. More specifically, the joint slide 2320 comprises an internally defined threaded opening 2322 and the worm gear 2312 is screwed into the threaded opening 2322. When the joint shaft 2310 rotates in the first direction, the worm gear 2312 pushes the joint slide 2320 distally (FIG. 32). When the joint shaft 2310 rotates in the second or opposite direction, the worm gear 2312 pulls the joint slide 2320 proximally (FIG. 31). The joint slide 2320 is slidably supported by a joint block 2112 fixed to the distal end of the elongated shaft portion 2110. The movement of the joint slide 2320 is restricted to proximal and distal movement by the joint block 2112 by the guide slot 2315 defined in the joint block 2112. The joint slide 2320 is tightly received by and extending from the longitudinal keyway 2116 defined at the bottom of the guide slot 2315 that limits the relative movement between the joint slide 2320 and the joint block 2112 in the longitudinal path. A key 2326 is further provided.

With reference to FIGS. 20, 21, and 24 again, the joint slide 2320 is connected to the joint link 2330. The joint slide 2320 comprises a drive pin 2324 extending from the proximal opening 2334 defined in the joint link 2330. The drive pin 2324 is tightly received within the opening 2334 such that the drive pin 2324 and the side wall of the opening 2334 cooperate so as to define a rotation axis between the joint slide 2320 and the joint link 2330. The joint link 2330 is also connected to the housing 2217 of the end effector 2200. More specifically, the joint link 2330 further comprises an internally defined distal opening 2335, and the housing 2217 comprises a pin 2215 located at the distal opening 2335. The pin 2215 is tightly received within the opening 2335 such that the side walls of the pin 2215 and the opening 2335 cooperate to define a rotation axis between the joint link 2330 and the housing 2217.

In addition to the above, with reference to FIGS. 18-21 and 24, the end effector 2200 is rotatably connected to the joint block 2112 of the shaft 2100 around the joint joint 2300. The housing 2217 of the end effector 2200 comprises openings 2213 defined on both sides thereof, and the joint block 2112 comprises protrusions 2113 located in openings 2213 extending from both sides thereof. The protrusion 2113 is tightly received by the opening 2213 such that the protrusions 2113 and the side walls of the opening 2213 cooperate to define the joint axis on which the end effector 2200 can be ranged. When the joint shaft 2310 is rotated to drive the joint slide 2320 distally, the joint slide 2320 drives the proximal end of the joint link 2330 distally. In response to the distal movement of the proximal end of the joint link 2330, the joint link 2330 rotates about a drive pin 2324 that rotates the end effector 2200 around the joint joint 2300. If the joint input 2310 rotates to drive the joint slide 2320 proximally, the joint slide 2320 pulls the proximal end of the joint link 2330 proximally, as described above. In response to the proximal movement of the proximal end of the joint link 2330, the joint link 2330 rotates about a drive pin 2324 that rotates the end effector 2200 around the joint joint 2300. The joint link 2330 provides at least one play between the joint slide 2320 and the housing 2217. As a result, the joint link 2330 allows the end effector 2200 to be articulated over a wide range of motion angles.

As discussed above, with reference to FIGS. 17 and 25, the proximal connector 2120 of the interchangeable tool assembly 2000 comprises a second input 2418. The second input 2418 comprises a drive gear 2417 that meshes with a drive gear 2416 attached to the proximal end of the drive shaft 2410. As illustrated in FIG. 19, the drive shaft 2410 extends through an opening 2114 defined in the shaft portion 2110 and the joint block 2112. The opening 2114 includes bearings and rotatably supports the drive shaft 2410. Alternatively, the opening 2114 may include a clearance opening. In any case, primarily with reference to FIG. 22, the drive shaft 2410 extends through the joint joint 2300 into the chamber 2218 defined in the end effector housing 2217. The drive shaft 2410 is rotatably supported by bearings 2414 mounted on the drive shaft 2410 captured in the recess 2214, defined in the housing 2217 of the end effector 2200. The drive shaft 2410 further comprises an output gear 2412 attached to its distal end such that the rotation of the drive shaft 2410 is transmitted to the output gear 2412.

The output gear 2412 of the drive shaft 2410 is operably engaged with the transmission 2420, primarily with reference to FIGS. 18, 22, and 23. As discussed in more detail below, the transmission 2420 has a first mode of operation in which the drive shaft 2410 moves the anvil 2230 with respect to the cartridge body 2222, and the drive shaft 2410 staples the staples in the staple cavity. It is configured to fire from 2224 and switch between a second mode of operation in which the captured tissue is incised between the anvil 2230 and the cartridge body 2222. The transmission 2420 comprises an orbit drive comprising a planetary plate 2421 and four planetary gears 2424 rotatably attached to the planetary plate 2421. The planetary plate 2421 has a clearance opening extending through its center, and the drive shaft 2410 extends through the clearance opening. The planetary plate 2421 and the planetary gear 2424 are arranged in the chamber 2219 defined in the end effector housing 2217. Each planetary gear 2424 is rotatable about a gear pin 2423 extending from the planetary plate 2421. The gear pin 2423 is arranged along the circumferential diameter surrounding the clearance opening. The output gear 2412 meshes with the planetary gear 2424, and the drive shaft 2410 drives the planetary gear 2424, as described in more detail below.

In addition to the above, the drive shaft 2410 extends through, for example, the joint joint 2300. The drive shaft 2410 is flexible so that when the end effector 2200 is articulated, the output gear 2412 remains properly engaged with the planetary gear 2424. In at least one case, the drive shaft 2410 is made of, for example, plastic.

As discussed above, the transmission 2420 includes a first mode of operation and a second mode of operation. Primarily with reference to FIGS. 23 and 28, the interchangeable tool assembly 2000 has a first position and a second position to switch the transmission 2420 between its first mode of operation and its second mode of operation. Further includes a shifter 2600 that can be moved between and between the positions of. As illustrated in FIGS. 28-30, when the shifter 2600 is in the first position, the shifter 2600 is not engaged with the planetary plate 2421 of the transmission 2420, resulting in the planetary plate 2421 and the planetary. The gear 2424 is rotated by the drive shaft 2410. More specifically, as described in further detail below, the drive shaft 2410 rotates the planetary gears 2424 around their respective gear pins 2423, the planetary gears 2424, the planetary plates 2421, and the planetary gears 2424. And the annular ring of the tooth 2534 extending around the planetary gear 2424 is rotated by a reaction force. The planetary plate 2421 is operably coupled to the output coupling 2430 so that the rotation of the planetary plate 2421 is transmitted to the output coupling 2430. Primarily with reference to FIG. 23, the output coupling 2430 comprises an array of openings 2433 extending around its outside. In this case, the gear pin 2423 extending from the planetary plate 2421 extends into the opening 2433 defined in the output coupling 2430 and is tightly received by the opening 2433. As a result, there is almost no relative movement between the planetary plate 2421 and the output coupling 2430, if any.

The output coupling 2430 includes a drive socket 2432, primarily with reference to FIGS. 18 and 23. The drive socket 2432 comprises, for example, a substantially hexagonal opening. However, any suitable configuration can be utilized. The drive socket 2432 is configured to receive a closing shaft 2440 extending through a second portion 2220 of the end effector 2200. The closure shaft 2440 comprises a substantially hexagonal proximal drive end 2442 that is tightly received within the drive socket 2432 so that rotation of the drive shaft 2410 can be transmitted to the closure shaft 2440. The closing shaft 2440 is rotatably supported by bearings 2444 in the housing 2227 of the second portion 2220. Bearing 2444 comprises, for example, a thrust bearing. However, the bearing 2444 may include any suitable bearing.

Primarily with reference to FIGS. 23 and 28-30, the closure shaft 2440 comprises a threaded portion 2446 screwed into a threaded opening 2456 defined in the trocar 2450. As discussed in further detail below, the anvil 2230 can be attached to the trocar 2450, which moves the anvil 2230 towards and / or away from the cartridge body 2222. As you can see, it can be translated. With reference to FIG. 18 again, the Trocar 2450 is configured to cooperate with at least one longitudinal key extending from the inner surface 2546 of the drive sleeve 2540, at least one internally defined longitudinal key slot. It is equipped with 2459. The drive sleeve 2540 is part of a staple firing system that will be further discussed below, and the reader can see that one of the trocar 2450 and the drive sleeve 2540 slides against each other and the two cooperate and are relative to each other. It should be understood that it interferes with the rotational movement. If the closure shaft 2440 is rotated in the first direction by screwing between the closure shaft 2440 and the trocar 2450, the closure shaft 2440 can displace or translate the trocar 2450 distally to it. Correspondingly, if the closing shaft 2440 is rotated in the second or opposite direction, the trocar 2450 can be displaced proximally or translated.

As discussed above, the anvil 2230 can be attached to the trocar 2450. The anvil 2230 comprises a connecting flange 2238 configured to engage and grip the trocar 2450. The connecting flange 2238 comprises a cantilever beam that is connected to the shaft portion 2236 of the anvil 2230. Primarily with reference to FIG. 23, the trocar 2450 comprises a retaining notch or recess 2458 configured to detachably receive the connecting flange 2238 when the anvil 2230 is assembled to the trocar 2450. The retaining notch 2458 and connecting flange 2238 are configured to resist accidental removal of the anvil 2230 from the trocar 2450. The connecting flange 2238 is separated by a longitudinal slot 2237. The longitudinal slot 2237 is configured to receive longitudinal ribs 2457 extending from the trocar 2450 when the anvil 2230 is assembled to the trocar 2450. The rib 2457 is tightly received within the slot 2237, and as a result, the anvil 2230 is prevented from rotating relative to the trocar 2450.

As discussed above, the tool assembly 2000 may be switched to its second mode of operation when the anvil 2230 is suitably positioned relative to the cartridge portion 2222. The shifter 2600 comprises, for example, an electrically actuated motor used to switch the transmission 2420 of the end effector 2200. In various other embodiments, the shifter 2600 may comprise any suitable device that is electrically and / or manually actuated. The shifter 2600 signals and communicates with the processor of the surgical stapler and energizes the battery of the surgical stapler. In various cases, the insulated electrical wire is between the shifter 2600 and the handle of the surgical instrument, for example, so that the processor can communicate with the shifter 2600 and the battery can power the shifter 2600. extend. In various other cases, the shifter 2600 can include a radio signal receiver and the processor can wirelessly communicate with the shifter 2600. In certain cases, power may be wirelessly supplied to the shifter 2600, for example via an induction circuit. In various cases, the shifter 2600 itself may be equipped with a power source.

The shifter 2600 comprises a housing attached to a chamber 2218 defined at the proximal end of the end effector 2200. The shifter 2600 includes a clutch key or toggle 2602 and an output shaft 2604 movable between a first position and a second position with respect to the shifter housing. The clutch key 2602 comprises a first locking tooth 2608 and a second locking tooth 2609, and when the clutch key 2602 is in its first position, the first locking tooth 2608 is the firing tube of the staple firing system. Engage with 2530 and at the same time disengage the second locking tooth 2609 from the planetary plate 2421 of the transmission 2420. More specifically, the first locking tooth 2608 is located in the opening 2538, the opening 2538 is part of an annular array of openings 2538 defined around the launch tube 2530, and the second locking tooth 2609 is Not arranged in the opening 2429, the opening 2429 is part of an annular array of openings 2429 defined around the planetary plate 2421. As a result of the above, the shifter 2600 locks out the staple firing system by preventing the firing tube 2530 from rotating when the clutch key 2602 is in its first position. As discussed above, when the clutch key 2602 is in the first position, the staple firing system is locked out by the shifter 2600, while the drive shaft 2410 rotates the planetary plate 2421 to operate the anvil closure system. I can let you.

Primarily as illustrated in FIG. 23, the launch tube 2530 comprises an inner annular rack consisting of teeth 2534 defined on its inner side wall 2532. The planetary gear 2424 operably meshes with a rack of teeth 2534. As illustrated in FIG. 28, when the shifter 2600 is in the first position, the launch tube 2530 is held in place by the shifter 2600 and the planetary gear 2424 is relative to the rack consisting of the launch tube 2530 and the teeth 2534. Therefore, it can be rotated by the drive shaft 2410. In such cases, the planetary gear 2424 is rotated about a longitudinal drive axis defined by the drive shaft 2410 and at the same time around an axis defined by each of those gear pins 2423. The reader should understand that the planetary gear 2424 is driven directly by the drive shaft 2410 and the reaction force generated between the planetary gear 2424 and the launch tube 2530 drives the planetary gear 2424 to rotate the planetary plate 2421. Is. When the shifter 2600 is actuated to move the clutch key 2602 to its second position, the first lock tooth 2608 is disengaged from the launch tube 2530 and at the same time the second lock tooth 2609 is planetary. Engage with plate 2421. The planetary plate 2421 is held in place by the shifter 2600 when the clutch key 2602 is in the second position, resulting in the closed drive being locked out and unable to operate to move the anvil 2230. In such a case, when the drive shaft 2410 rotates, the output gear 2412 is driven to rotate the planetary gear 2424 with respect to the planetary plate 2421 about their respective gear pins 2423. The planetary gear 2424 drives the launch tube 2530 via a rack of teeth 2534 to rotate the launch tube 2530 about its longitudinal axis.

In addition to the above, again with reference to FIG. 23, the launch tube 2530 is operably coupled to the drive sleeve 2540 of the staple launch system. More specifically, the inner side wall 2532 of the launch tube 2530 is configured to tightly accept the longitudinal ribs 2545 defined on the drive sleeve 2540 so that the drive sleeve 2540 rotates with the launch tube 2530. It has an internally defined longitudinal slot 2535. The drive sleeve 2540 further comprises a threaded distal end 2542 that screwed into the drive collar 2550. More specifically, the drive collar 2550 comprises a threaded opening 2552 that screwed into a threaded distal end 2542. The drive collar 2550 is located, for example, in an opening 2228 defined in the housing of the end effector 2200, and longitudinal ribs and groove configurations prevent rotation within the opening 2228. As a result of the above, the rotation of the drive sleeve 2540 causes the drive collar 2550 to translate in the longitudinal direction. For example, the drive collar 2550 advances distally when the drive sleeve 2540 rotates in the first direction and retracts proximally when the drive sleeve 2540 rotates in the second or opposite direction.

As discussed above, when the drive collar 2550 is pushed distally, the drive collar 2550 moves the staple driver block 2560 and the cutting member 2570, such as a knife, distally during the firing stroke of the staple firing system. push. More specifically, in the drive collar 2550, the staple driver block 2560 and the cutting member 2570 are arranged in the staple cavity 2224 in which the staples are defined in the cartridge body portion 2222, and the cutting member 2570 is a deck surface of the cartridge body portion 2222. The proximal unlaunched position and the staples underneath are deformed relative to the anvil 2230, and the tissue captured between the anvil 2230 and the cartridge body portion 2222 is excised by the cutting member 2570. Push to and from the distal fired position. The drive collar 2550 comprises a drive recess 2554 configured to abut the staple driver block 2560 and the cutting member 2570 as the drive collar 2550 advances distally. The staple driver block 2560 includes a plurality of staple cradle defined inside. In this case, each staple cradle is configured to support the base of the staple. The staple cradle is aligned with the staple cavities 2224 defined in the cartridge body portion 2222 and arranged in at least two concentric rows.

The staple driver block 2560 and the cutting member 2570 are driven so that when the drive collar 2550 is moved proximally away from the anvil 2230, the staple driver block 2560 and the cutting member 2570 are pulled proximally by the drive collar 2550. Attached to the collar 2550. In at least one case, the staple driver block 2560 and the cutting member 2570 include one or more hooks extending into an opening 2557 defined in the drive collar 2550. In various cases, the staple driver block 2560 and the cutting member 2570 may retract such that they retract completely beneath the deck surface of the cartridge body portion 2222.

In addition to the above, the end effector 2200 can operate in a third mode of operation in which the clutch key 2602 of the shifter 2600 engages operably at the same time as the anvil closure system and the staple firing system. In this mode of operation, the first locking tooth 2608 engages the firing tube 2530 of the staple firing system and the second locking tooth 2609 engages the planetary plate 2421 of the transmission 2420. In such cases, the first lock tooth 2608 is placed in the opening 2538 defined in the launch tube 2530 and the second lock tooth 2609 is placed in the opening 2429 defined in the planetary plate 2421. As a result of the above, the drive shaft 2410 simultaneously moves the anvil 2230, the staple driver block 2560, and the cutting member 2570 with respect to the cartridge body 2222.

With reference to FIG. 15 again, the user of the interchangeable tool assembly 2000 is from the kit of the second part 2220, 2220', 2220'', 2220''' and / or any other suitable second part. The selected and selected second portion may be assembled to the first portion 2210 of the end effector 2200. Primarily with reference to FIG. 18, each second portion comprises a housing connector 2229 that engages the housing 2217 of the first portion 2210 when the second portion is assembled to the first portion 2210. In addition, each second portion comprises a closing shaft 2440 that operably engages with the drive socket 2432 of the first portion 2210 when the second portion is assembled to the first portion 2210. Further, each second portion comprises a drive sleeve 2540 that operably engages with the launch tube 2530 of the first portion 2210 when the second portion is assembled to the first portion 2210.

In addition to the above, with reference to FIGS. 35 and 36, the tool assembly 2000'is interchangeable with the tool assembly 2000. The tool assembly 2000'is similar to the tool assembly 2000 in many respects. However, the tool assembly 2000'is configured to apply a ring-shaped staple line having a diameter larger than the ring-shaped staple line applied by the tool assembly 2000. Tool assembly 2000' includes, among other things, a wider second portion 2220', staple driver 2560', knife assembly 2570', cartridge body 2222', and anvil 2230'. With reference to FIG. 37, the tool assembly 2000 ″ is interchangeable with the tool assembly 2000. Tool assemblies 2000 ″ are similar to tool assemblies 2000 and 2000 ″ in many respects. However, the tool assembly 2000 ″ is configured to apply a ring-shaped staple line having a diameter larger than the ring-shaped staple line applied by the tool assembly 2000 ″. The tool assembly 2000 ″ includes, among others, a wider second portion 2220 ″, a staple driver 2560 ″, a knife assembly 2570 ″, a cartridge body 2222 ″, and an anvil 2230 ″. With reference to FIG. 38, the tool assembly 2000 ″ is interchangeable with the tool assembly 2000. The tool assembly 2000 ″ is similar to the tool assemblies 2000, 2000 ″, and 2000 ″ in many respects. However, the tool assembly 2000 ″ is configured to apply a ring-shaped staple line having a diameter larger than the ring-shaped staple line applied by the tool assembly 2000 ″. The tool assembly 2000'''' comprises, among other things, a wider second portion 2220'''', staple driver 2560'''', knife assembly 2570'''', cartridge body 2222'''', and anvil 2230''''. ..

In various embodiments, in addition to the above, the surgical instrument may have any suitable number of modes of operation. In at least one embodiment, the surgical staple fastener has both a first mode of operation for firing staples, a second mode of operation for deploying cutting members, and simultaneous firing of staples and deployment of cutting members. It comprises a transmission, including a third mode of operation. In the first mode of operation, the cutting member is not deployed. Further, the processor of such a surgical instrument can be programmed so that the instrument cannot enter a second mode of operation without first completing the first mode of operation. As a result of the above, the user of the surgical instrument may decide whether to cut the tissue after the staples have been fired.

An alternative embodiment of the staple cartridge body for use with a surgical stapler is illustrated in FIG. The cartridge body 2222'includes an annular outer row of staple cavities 2224 and an annular inner row of staple cavities 2224'. The staple cavity 2224 is defined in the first step of the cartridge body deck, and the staple cavity 2224'is defined in the second step of the cartridge body deck. The second step extends over the first step. In other words, the first step has a first deck height and the second step has a second deck height higher than the first deck height. The deck wall separates the first step from the second step. In various embodiments, the deck wall is sloping. In certain embodiments, the deck wall is orthogonal to the first step and / or the second step.

The cartridge body 2222 ′ further comprises a cavity extension 2229 ′ extending from the first step of the deck. The cavity extension 2229'encloses the end of the staple cavity 2224 and extends the staple cavity 2224 onto the first step. The cavity extension 2229'can at least partially control the staples on the first step as the staples are ejected from the staple cavities 2224. The cavity extension 2229'is also configured to come into contact with the captured tissue and compress the tissue against the cartridge body 2222'. The cavity extension 2229'can also control the flow of tissue relative to the cartridge body 2222'. For example, the cavity extension 2229'can limit the radial flow of tissue. The cavity extension 2229'can have any suitable configuration and may extend from the first step at any suitable height. In at least one case, the top surface of the cavity extension 2229'is, for example, aligned with the second step or has the same height as the second step. In other cases, the cavity extension 2229'may extend above or below the second step.

In addition to the above, each staple cavity 2224 comprises a first staple with a first unformed height that is internally located. Each staple cavity 2224'includes a second staple that is internally located and has a second unformed height that is different from the first unformed height. For example, the first unformed height is higher than the second unformed height. However, the second unformed height may be higher than the first unformed height. In an alternative embodiment, the first unformed staple height and the second unformed staple height are the same.

The first staple is transformed into a first deformed height and the second staple is transformed into a second deformed height that is different from the first deformed height. For example, the first deformed height is higher than the second deformed height. Such a configuration can improve blood flow in the stapled tissue. Alternatively, the second deformed height may be higher than the first deformed height. Such a configuration can improve the pliability of the tissue along the medial resection line. In certain alternative embodiments, the first deformed height and the second deformed height are the same.

As discussed above, replaceable tool assemblies may include, among other things, shafts, end effectors, and replaceable staple cartridges. The replaceable staple cartridge moves the end effector to open and close to staple and cut the tissue trapped in the end effector and the closed drive that is configured to trap the tissue in the end effector. Includes a configured launch drive. The end effector closure and launch drives are operably coupled to the shaft's corresponding closure and launch drives when the replaceable staple cartridge is assembled to the shaft. If the replaceable staple cartridge is not properly assembled to the shaft, the replaceable staple cartridge may not operate in its intended manner. As described in more detail below, the replaceable staple cartridge and / or shaft may be provided with a lockout that prevents the replaceable staple cartridge from operating unless the replaceable staple cartridge is properly attached to the shaft.

Switching from here to FIG. 39, the replaceable tool assembly 3000 comprises a shaft 3010 and a replaceable staple cartridge 3020. Similar to the above, the replaceable staple cartridge 3020 has a closed drive input and a firing drive that are operably connected to the closed drive output and the firing drive output, respectively, when the staple cartridge 3020 is completely fixed on the shaft 3010. Have an input. The operation of such closure and launch systems is not repeated herein for the sake of brevity.

The replaceable tool assembly 3000 further comprises a lockout circuit 3090. The lockout circuit 3090 includes a conductor 3096 and a contact 3092. The first contact 3092 is electrically connected to the first conductor 3096 and the second contact 3092 is electrically connected to the second conductor 3096. The first contact 3092 is not electrically connected to the second contact 3092 before the staple cartridge 3020 is fully secured onto the shaft 3010. The staple cartridge 3020 comprises a contact bridge 3094 that engages and is electrically connected to the contact 3092 when the staple cartridge 3020 is fully secured onto the shaft 3010. The contact 3092 and the contact bridge 3094 are configured and arranged so that the contact bridge 3094 is not electrically connected to the contact 3092 when the staple cartridge 3020 is only partially secured onto the shaft 3010.

The replaceable tool assembly 3000 can be used with a surgical instrument system, for example, equipped with a manually operable handle and / or robotic system. In various embodiments, the surgical instrument system comprises an electric motor configured to drive the staple firing system of the tool assembly 3000, plus a controller configured to operate the electric motor. Be prepared. The lockout circuit of the tool assembly 3000 communicates with the controller. If the controller detects that the contact bridge 3094 is not engaged with the contact 3092 or that the lockout circuit is open, the controller prevents the electric motor from operating the staple firing system. In various cases, the controller is configured not to supply power to the electric motor when the lockout circuit is open. In certain other cases, the controller can operate the closure system when the lockout circuit is in the open state, but power the electric motor so that the launch system cannot operate. It is configured. In at least one such case, the controller operates a transmission connected to the electric motor so that the output of the electric motor is directed only to the closed system. If the controller detects that the contact bridge 3094 is engaged with the contact 3092 or that the lockout circuit is closed, the controller allows the electric motor to operate the staple firing system. ..

If the surgical instrument system is equipped with a handle, in addition to the above, the controller may activate a trigger lock that prevents the handle's firing trigger from activating if the controller detects that the lockout circuit is in the open configuration. .. When the staple cartridge 3020 is completely secured on the shaft 3010 and the lockout circuit is closed, the controller can retract the trigger lock and activate the firing trigger. Such systems can be used with motorized and / or non-motorized launch drives. The non-motorized launch drive can be driven, for example, by a hand crank.

As discussed above, the anvil 2230 can be assembled to the closed drive trocar shaft 2450 in the tool assembly 2000. The connecting flange 2238 of the anvil 2230 is configured to engage the recess 2458 defined on the trocar shaft 2450 and connect the anvil 2230 to it. When the anvil 2230 is assembled to the trocar shaft 2450, the trocar shaft 2450 and the anvil 2230 may be retracted or pulled by a closed drive towards the staple cartridge 2222, compressing the tissue against the staple cartridge 2222. However, in some cases, the anvil 2230 may not be properly assembled to the trocar shaft 2450. Incorrect assembly of the anvil 2230 to the trocar shaft 2450 often results in the trocar shaft 2450 extending sufficiently onto the deck of the staple cartridge 2222 when the clinician attempts to assemble the anvil 2230 to the trocar shaft 2450. It can happen if it is not done. In such cases, the anvil 2230 is often sufficiently attached to the trocar shaft 2450 so that the trocar shaft 2450 can move the anvil 2230 towards the staple cartridge 2222, while the anvil 2230 moves the tissue to the staple cartridge 2222. The anvil 2230 may be removed from the trocar shaft 2450 if it is beginning to squeeze against.

Switching from here to FIGS. 41 and 42 , the interchangeable tool assembly 3100, which is similar in many respects to the interchangeable tool assembly 2000 discussed above, is shown. The tool assembly 3100 comprises a cartridge body 3120 comprising a deck 3121 configured to support the tissue when the tissue is pressed against the cartridge body 3120 by the anvil 2130. The tool assembly 3100 further comprises a closed drive configured to move the anvil 2130 relative to the cartridge body 3120. The closed drive comprises a trocar shaft 3150 with internally defined recesses as above. The recess comprises a distal shoulder 3158 configured to hold the anvil 2130 on the trocar shaft 3150. In addition, the tool assembly 3100 further comprises a firing drive configured to eject staples from the cartridge body 3120. The launch drive comprises a rotary shaft 3162 and a translational mobile collar 3160 that is configured to eject staples from the cartridge body 3120 and is screwed into the rotary shaft 3162. The rotary shaft 3162 comprises an internally defined longitudinal opening 3164, and the trocar shaft 3150 extends through the opening 3164.

In addition to the above, the closed drive further comprises a clip 3190 attached to the trocar shaft 3150. Clip 3190 comprises a base 3192 mounted in a slot defined in the trocar shaft 3150. Clip 3190 further comprises a flexible arm or accessory 3198 extending from the base 3192. The arm 3198 is movable between the enlarged position (FIG. 41 ) and the deflection position (FIG. 42). As illustrated in FIG. 42 , the anvil 2130 can be locked to the trocar shaft 3150 when the arm 3198 is in its deflection position. As illustrated in FIG. 42 , the arm 3198 is held in its deflection position by the translational movable collar 3160 of the firing drive when the trocar shaft 3150 extends sufficiently onto the deck 3121 of the cartridge body 3120. The translational mobile collar 3160 comprises an annular shoulder 3168 configured to elastically urge the arm 3198 inward when the arm 3198 comes into contact with the shoulder 3168.

If the trocar shaft 3150 is not in a sufficiently extended position on the cartridge deck 3121, the arm 3198 will not be urged inward by the shoulder 3168. In such a case, as illustrated in FIG. 41 , the arm 3198 is in its enlarged position. When the arm 3198 is in its expanded position, the arm 3198 prevents the anvil 2130 from being attached to the trocar shaft 3150. More specifically, the arm 3198 prevents the connecting flange 2238 of the anvil 2130 from being secured behind the shoulder 3158 defined on the trocar shaft 3150. In such cases, the arm 3198 prevents the anvil 2130 from being partially attached to the trocar shaft 3150, and as a result, even if the clinician attempts to assemble the anvil 2130 to the trocar shaft 3150, the anvil 2130 will be attached to the trocar shaft. It cannot be partially assembled to the 3150, avoiding the problems mentioned above. The reader understands that the anvil 2130 is often assembled to the trocar shaft 3150 in the field or in the patient's body, and proper assembly of the anvil 2130 to the trocar shaft 3150 facilitates the completion of the surgical technique used. Should be. The system considered above provides a lockout that prevents the partially assembled anvil from being squeezed against the tissue.

Switch from here in FIGS. 43 to 45, as will be discussed in more detail below, replaceable tool assembly 3200, without the anvil is attached to the closure drive configured to prevent the retracted closure drive It has a lockout that has been done. The tool assembly 3200 includes a shaft 3210 and an end effector 3220. The end effector 3220 comprises an outer housing 3227, a cartridge body 3222, and a longitudinal opening 3226 defined through it. The tool assembly 3200 further comprises a closed drive comprising a trocar shaft 3250 and an anvil 3230 that can be attached to the trocar shaft 3250. Similar to the above, the closed drive is configured to move the anvil 3230 towards and away from the cartridge body 3222. The trocar shaft 3250 is movable between an extended position and a retracted position. Both FIGS. 43 and 45 show the trocar shaft 3250 in its extended position.

In addition to the above, the tool assembly 3200 prevents the trocar shaft 3250 from moving from its extended position (FIGS. 43 and 45 ) towards its retracted position if the anvil 3230 is not assembled to the trocar shaft 3250. It further comprises a configured retract lock 3290. The retractable lock 3290 comprises a lock arm 3292 rotatably attached to the housing 3227 around a protrusion or pin 3294. The retreat lock 3290 is configured to urge the lock arm 3292 towards the trocar shaft 3250 and further comprises a spring 3296 that engages the lock arm 3292. The trocar shaft 3250 includes a lock shoulder 3258, and as illustrated in FIG. 44 , if the anvil 3230 is not assembled to the trocar shaft 3250, the lock arm 3292 catches the lock shoulder 3258 and the trocar shaft 3250 is close. It is configured to prevent you from moving to the position. More specifically, the lock arm 3292 includes a catch 3298 configured to slide under the lock shoulder 3258. As illustrated in FIG. 45 , when the anvil 3230 is assembled to the trocar shaft 3250, the anvil 3230 comes into contact with the lock arm 3292 and displaces the lock arm 3292 away from the lock shoulder 3258. At such a point, the trocar shaft 3250 is unlocked and can move towards its retracted position towards the cartridge body 3222.

Switch from here in FIGS. 46 to 48, as will be discussed in more detail below, replaceable tool assembly 3300 includes a closure drive, a staple firing drive, the anvil closure drive is set to the appropriate tissue gap It features a lockout that is configured to prevent the staple firing drive from operating until. The tool assembly 3300 includes a shaft 3310 and an end effector 3320. The end effector 3320 includes an inner frame 3329, an outer housing 3327, and a cartridge body 3322. Similar to the above, the closed drive comprises a trocar shaft 3350 and an anvil 2230 that can be attached to the trocar shaft 3350. Further, similarly to the above, the trocar shaft 3350 is placed between the extension position (FIG. 47 ) and the retracted position (FIG. 48 ) in order to move the anvil 2230 toward the cartridge body 3322 and away from the cartridge body 3322. It is possible to move with. The launch drive comprises a rotary shaft 3360 configured to displace the launch drive distally and eject staples stored in the cartridge body 3322.

In addition to the above, the end effector 3320 includes a firing drive lock 3390 movably attached to the inner frame 3329. The firing drive lock 3390 includes a lock pin 3394 and a lock spring 3398 arranged around the lock pin 3394. The lock pin 3394 includes a head 3392 and a stop 3396. The lock spring 3398 is arranged between the stop 3396 and the side wall of the cavity 3328 defined in the inner frame 3329. As illustrated in FIG. 47 , when the trocar shaft 3350 is in the extended position, the lock spring 3398 urges the lock pin 3394 into the lock opening 3364 defined on the rotary shaft 3360 of the staple firing drive. In such cases, the interaction between the lock pin 3394 and the side wall of the lock opening 3364 prevents the shaft 3360 from rotating and the staples from being fired from the cartridge body 3322. When the trocar shaft 3350 is fully retracted, the trocar shaft 3350 engages with the head 3392 of the lock pin 3394. The head 3392 is defined on it and is engaged by a trocar shaft 3350 to move the launch drive lock 3390 between the locked configuration (FIG. 47 ) and the unlocked configuration (FIG. 48). It has a cam surface. When the drive lock 3390 is in its unlocked configuration, the launch drive shaft 3360 can rotate.

The launch drive lockout of the tool assembly 3300 requires the anvil 2230 to move within a predetermined position or range of positions before the staples can be fired. Further, the firing drive lockout of the tool assembly 3300 requires that the tissue gap between the anvil 2230 and the cartridge body 3322 be less than a certain distance before the staples can be fired. As a result, the location of the anvil 2230 and / or closure system deactivates the staple firing lockout. Such a configuration can help prevent staple malformations and / or under-compression of the tissue, among others.

Switch from here in FIGS. 49 to 51, replaceable tool assembly 3400 includes a closure drive that is configured to clamp tissue, the staple firing drive, before the closing drive apply sufficient clamping pressure to the tissue It comprises a launch drive lockout 3490, which is configured to prevent the staple launch drive from operating. The closed drive comprises a trocar shaft 3450 and an anvil, such as an anvil 2230 attached to the trocar shaft 3450. Similar to the above, the trocar shaft 3450 is movable from the extended position (FIG. 50 ) to the retracted position (FIG. 51 ) in order to compress the tissue against the cartridge body of the tool assembly 3400. The firing drive includes a rotary shaft 3460 configured to displace the staple driver distally and eject the staples from the cartridge body.

The launch drive lockout 3490 is located between the closed drive trocar shaft 3450 and the launch drive rotary shaft 3460. The launch drive lockout 3490 comprises a distal plate 3492, a proximal plate 3494, and a spring 3493 located between the distal plate 3492 and the proximal plate 3494. The launch drive lockout 3490 further comprises a lock pin 3498, the lock pin 3498 having a lock configuration in which the lock pin 3498 engages the shaft 3460 (FIG. 50 ) and a non-engagement of the lock pin 3498 from the shaft 3460. It is movable to and from the lock configuration (FIG. 51). The lock pin 3498 is located in the pin chamber 3496 defined between the distal plate 3492 and the proximal plate 3494. More specifically, the lock pin 3498 comprises a tilted head located between the cam 3495 defined on the distal plate 3492 and the cam 3495 defined on the proximal plate 3494. When the trocar shaft 3450 retracts proximally, the trocar shaft 3450 pushes the distal plate 3492 proximally, and the cam 3495 defined on the distal plate 3492 engages the head of the lock pin 3498. In such cases, as illustrated in FIG. 51 , the cam 3495 defined on the distal plate 3492 cooperates with the cam 3495 defined on the proximal plate 3494 to provide the lock pin 3498. Displace to that unlocked configuration.

As discussed above, the cam 3495 of the launch drive lockout 3490 squeeze the head of the lock pin 3498 as the distal plate 3492 is moved towards the proximal plate 3494 by the trocar shaft 3450. More specifically, the cam 3495 drives the lock pin 3498 inward to disengage from the rotary shaft 3460. The lock pin 3498 is located in the lock opening 3468 defined on the shaft 3460 when the lock pin 3498 is in its locking configuration, and the interaction between the lock pin 3498 and the side wall of the lock opening 3468 causes the lock pin 3498 to , Prevents the shaft 3460 from rotating. As a result, the staples cannot be fired from the cartridge body by the firing drive. As discussed above, when the lock pin 3498 is moved to the unlocked configuration, the lock pin 3498 moves out of the lock opening and the shaft 3460 is driven by the firing drive to fire the staples from the cartridge body. Can be rotated. In various embodiments, the shaft 3460 may comprise a circumferential array of lock openings 3468 defined on the shaft 3460 so that each lock opening 3468 receives a lock pin 3498 and locks out the launch drive. It is configured. With reference to FIGS. 49-51 again, the launch drive lockout 3490 further comprises an urging member, such as a spring 3499 configured to urge the lock pin 3498 into the lock opening 3468.

In addition to the above, the spring 3493 of the launch drive lockout 3490 is configured to resist the proximal movement of the trocar shaft 3450. The spring 3493 is a linear coil spring. However, any suitable spring can be used. In addition, more than one spring can be used. In any case, the spring 3493 or spring system has the rigidity to apply spring force to the distal plate 3492 of the firing drive lockout 3490 when the trocar shaft 3450 is retracted. In other words, the force applied by the spring 3493 to the distal plate 3492 increases in proportion to the distance the trocar shaft 3450 is displaced proximally. The spring force generated by the spring 3493 opposes the clamping force exerted by the anvil 2230 on the tissue. As a result, the clamping force must overcome the specific or predetermined spring force generated by the spring 3493 in order to fully move the distal plate 3492 and unlock the firing drive. In such cases, the force to clamp the tissue must meet a predetermined threshold before the launch drive lockout 3490 can be deactivated and the staple launch drive can be activated. ..

As discussed for the various embodiments disclosed herein, the staple firing drive drives the staple against the anvil, deforming the staple to the desired preformed height. In various cases, the staple firing drive is also configured to push a cutting member, such as a knife, distally to cut the tissue trapped between the cartridge body and the anvil. In such cases, the knife is exposed on the deck of the cartridge body. However, when the anvil is in its closed or clamped position, the anvil is placed closer to the cartridge body and most of the knife is covered by the anvil even if the knife is exposed on the cartridge body. .. If the anvil is moved to its open position and / or removed from the closed drive before the knife retracts under the deck of the cartridge body, the knife will be uncovered and exposed. 52-54 show a tool assembly 3500 with a lockout 3590 configured to prevent the anvil from moving to its open position while the knife is exposed on the cartridge deck.

Tool assembly 3500 includes a closed drive and a launch drive. The closed drive includes a trocar shaft 3550 and an anvil 3530 detachably attached to the trocar shaft 3550. Similar to the above, the trocar shaft 3550 can be translated proximally and distally by a rotary closing shaft 2440 that is screwed into the trocar shaft 3550. The launch drive comprises a rotary shaft 3562 and a translational mobile collar 3560 screwed with the rotary shaft 3562. Similar to the above, the collar 3560 can be translated proximally and distally when the shaft 3562 rotates in the first and second directions, respectively. Also similar to the above, the launch drive collar 3560 is configured to advance and retract the staple driver array and knife assembly 2570 towards and away from the anvil 3530.

In addition to the above, the lockout 3590 includes a lockarm 3592 rotatably mounted around a pivot 3594 on the shaft 3562 of the launch drive. The lockout 3590 further comprises an urging member or spring 3599 that engages the lockarm 3592, which is configured to urge the lockarm 3592 to contact the anvil 3530. During use, the anvil 3530 is assembled to the trocar shaft 3550 and then the trocar shaft 3550 is retracted to place the anvil 3530 in its closed or clamped position with respect to the cartridge body. When the anvil 3530 retracts, the lock arm 3592 of the lockout 3590 slides against the outer surface of the anvil 3530 until the lock arm 3592 is aligned with the lock recess 3532 defined in the anvil 3530. At this point, as illustrated in FIG. 53, the spring 3599 urges the lock arm 3592 into the lock recess 3532. More specifically, the lock arm 3592 is located behind the lock shoulder defining the lock recess 3532. The launch drive can then act to fire the staples and cut the tissue. In such cases, the cutting edge of the knife assembly 2570 is exposed on the cartridge body and the lockout 3590 locks out or opens the closed drive until the cutting edge of the knife assembly 2570 is no longer exposed. Be hindered.

Primarily with reference to FIG. 52, the lock arm 3592 further comprises a reset tab 3593 extending from it. The launch drive collar 3560 further comprises a cam 3563 configured to engage the reset tab 3595 when the collar 3560 and knife assembly 2570 are retracted proximally by the launch drive. The cam 3563 is configured to rotate the lock arm 3592 downward to disengage the lock shoulder defined in the lock recess 3532 to unlock the closed drive. The cam 3563 is configured to unlock the closed drive if the cutting edge of the knife assembly 2570 retracts under the cartridge deck. However, in other embodiments, the cam 3563 may unlock the closed drive if the cutting edge is at or at least substantially the same height as the cartridge deck. In some embodiments, the closed drive does not have to be unlocked until the knife assembly 2570 is fully retracted. Once the closed drive is unlocked, the closed drive can operate to move the anvil 3530 back into the open or unclamped position.

Once the staples of the replaceable tool assembly are fired, the tool assembly does not have to be reused, according to various embodiments. As discussed in more detail below, the tool assembly features a lockout that is configured to prevent the tool assembly from being re-clamped on the tissue after it has been used to staple the tissue. obtain.

In at least one embodiment, here with reference to FIG. 55 through FIG. 58, replaceable tool assembly 3400, the anvil, for example, a closure drive that is configured to position and anvil 2230 relative to staple cartridge , A launch drive configured to drive the staples from a staple cartridge. Similar to the above, the anvil 2230 can be attached to the translational mobile trocar shaft 3450 of the closed drive. Further, similarly to the above, the launch drive includes a rotary shaft 3460 , a translational movable collar 2550 screwed with the rotary shaft 3460, and a staple launch driver 2560 displaceable by the rotary shaft 3460. During use, the closed drive can operate to place the anvil 2230 in a clamped position with respect to the staple cartridge, and the launch driver then places the staple in the tissue trapped between the anvil 2230 and the staple cartridge. It can be operated to fire at. The closed drive then operates to open the anvil 2230 and release the tissue.

In addition to the above, the tool assembly 3400 comprises a lockout 3490 configured to prevent the anvil 2230 from being re-clamped on the tissue. Lockout 3490 includes a lock arm 3492 rotatably mounted on the rotary shaft 3460, the lock arm 3492, a closed clamping position non-clamping position in which the closing drive opens the anvil 2230 (FIG. 55) (FIG. 56 ), It is held in an unlocked configuration by the launch drive. The lock arm 3492 is unlocked between the rotary shaft 3460 and the translational mobile collar 2550 as the trocar shaft 3450 and anvil 2230 move relative to the launch drive and the anvil 2230 is placed relative to the staple cartridge. Retained in the configuration. As illustrated in FIG. 55, the arm 3492 is held in its unlocked configuration until the launch drive is activated. As the shaft 3450 rotates in the first direction, the collar 2550 is moved distally and the spring 3499 of the lockout 3490 can urge the lockarm 3492 against the trocar shaft 3450 . One Ide, the closure drive to open the anvil 2230 again, tissue clamps released, and / or may operate to remove the anvil 2230 from the trocar shaft 3450. When the anvil 2230 is reopened, the spring 3499 urges the lock arm 3492 into the trocar shaft 3450 and / or the lock recess 3452 defined on the anvil 2230. When the lock arm 3492 is placed on the lock recess 3452 , the lock arm 3492 prevents the trocar shaft 3450 from retracting proximally. If the closed drive operates in an attempt to retract the trocar shaft 3450 , the lock arm 3492 will abut the lock shoulder defined on the lock recess 3452 and prevent the trocar shaft 3450 and the anvil 2230 from retracting. As a result, the lockout 3490 prevents the anvil 2230 from being re-clamped on the tissue after the tool assembly 3400 has undergone or at least partially undergoing a firing cycle, and the tool assembly 3400 cannot be used again. In addition, the lockout 3490 can serve as a used cartridge lockout.

Switching from here to FIGS. 59 and 60, the tool assembly 3700 comprises a staple cartridge 3720 and an anvil 3730. The tool assembly 3700 is configured to eject or fire staples that are configured to move the anvil 3730 towards the staple cartridge 3720 and, in addition, staples that are retractably stored in the staple cartridge 3720. Further equipped with a launch system. The anvil 3730 includes a longitudinal shaft portion 3736 and a mounting arm 3738 extending from a shaft portion 3736 configured to elastically grip the closure actuator or trocar 3734 of the closure system. The closed actuator 3734 can be retracted proximally by a closed drive to move the trocar 3734 between the open unclamped position (FIG. 59) and the closed clamp position (FIG. 60). As illustrated in FIG. 59, when the closure system is in its open configuration, the staple firing system is ineffective and fires the staples stored in the staple cartridge 3720, as described in more detail below. Can't work.

In addition to the above, the staple launch system comprises a rotary launch shaft 3750 with a threaded distal end and, in addition, a threaded opening configured to receive the threaded distal end of the launch shaft 3750. It comprises a translational mobile launch nut 2550. Especially with reference to FIG. 59, when the anvil 3730 is in its open position, a gap exists between the threaded distal end of the launch shaft 3750 and the threaded opening defined in the launch nut 2550. As a result, the launch shaft 3750 is unable to displace the launch nut 2550 distally until the launch shaft 3750 is screwed into the launch nut 2550.

As illustrated in FIG. 60, the mounting arm 3738 of the anvil 3730 is configured to engage the launch shaft 3750 and deflect the launch shaft 3750 outward when the anvil 3730 is moved to its closed position. ing. Primarily with reference to FIGS. 59A and 60A, the mounting arm 3738 engages an inwardly extending protrusion 3758 defined on the launch shaft 3750 and pushes the periphery of the protrusion 3758 and the launch shaft 3750 outward. It is configured as follows. In such cases, the threaded distal end of the launch shaft 3750 is pushed into a operably engaged state at the threaded interface 3790 with the threaded opening of the launch nut 2550, at which point the launch The shaft 3750 may displace the launch nut 2550 distally in order to eject the staples from the staple cartridge 3720 when the launch shaft 3750 is rotated by the launch drive. When the anvil 3730 is reopened, the launch shaft 3750 will return to its original configuration and be operably disengaged from the launch nut 2550.

As a result of the above, the tool assembly 3700 is used if the anvil 3730 is not attached to the closure system, if the anvil 3730 is improperly attached to the closure system, and / or if the anvil 3730 is not sufficiently closed. It also has a lockout that prevents the staples from being fired.

Switching from here to FIGS. 61 and 62, the tool assembly 3800 is a replaceable staple cartridge containing staples retractably stowed, an anvil configured to deform the staples, and anvil to the staple cartridge. It comprises a closed drive system configured to move the staples and a launch system configured to eject staples from staple cartridges. As discussed below, the tool assembly 3800 further comprises a lockout that is configured to prevent the launch system from operating unless the staple cartridge is fully secured onto the tool assembly 3800.

The staple cartridge comprises a cartridge frame 3820 configured to engage the shaft frame 3810 of the tool assembly 3800. The staple cartridge further comprises a drive shaft 3830 that is inserted into the shaft frame 3810 when the staple cartridge is assembled to the tool assembly 3800. Among other things, primarily with reference to FIG. 64, the drive shaft 3830 is configured to engage the transmission 3860 of the launch system and compress the transmission 3860 when the staple cartridge is assembled to the tool assembly 3800. It has a proximal end 3832 with a gear portion 3833. Primarily with reference to FIG. 62, the transmission 3860 comprises a first portion 3862, a second portion 3864, and a third portion 3868, which, when pushed into an operably engaged state with each other. The rotational input motion can be transmitted to the drive shaft 3830.

Primarily with reference to FIGS. 63 and 64, the annular gear portion 3833 of the drive shaft 3830 is configured to engage the corresponding gear portion 3863 defined on the distal side surface of the first transmission portion 3862. If the first transmission portion 3862 is pushed proximally by the drive shaft 3830, the first transmission portion 3862 may operably engage the second transmission portion 3864. More specifically, the first transmission portion 3862 comprises a proximal gear portion 3865, the proximal gear portion 3865 being a second when the first transmission portion 3862 is pushed proximally by the drive shaft 3830. It engages with the distal gear portion 3866 of the transmission portion 3864 and at the same time pushes the second transmission portion 3864 proximally. If the second transmission portion 3864 is pushed proximally by the first transmission portion 3862, the second transmission portion 3864 may operably engage the third transmission portion 3868, as described above. More specifically, the second transmission portion 3862 is the distal gear portion of the third transmission portion 3864 when the first transmission portion 3862 and the second transmission portion 3864 are pushed proximally by the drive shaft 3830. It comprises a proximal gear portion 3867 that engages with the 3869. The third transmission portion 3868 is operably coupled to the input shaft and is supported by the input shaft and / or shaft housing 3810 for proximal displacement.

Primarily with reference to FIG. 61, the transmission 3860 further comprises at least one spring member 3870 disposed between the first transmission portion 3862 and the second transmission portion 3864. In at least one case, the spring member 3870 may include, for example, one or more corrugated springs. The spring member 3870 is configured to urge the first transmission portion 3862 and the second transmission portion 3864 so as to be separated from each other. In addition to or in place of the above, the transmission 3860 further comprises at least one spring member 3870 disposed between the second transmission portion 3864 and the third transmission portion 3868, and the spring member 3870. Is configured to urge the second transmission portion 3864 and the third transmission portion 3868 to be separated from each other in the same manner as described above. Primarily with reference to FIG. 65, each spring member 3870 includes two disc springs 3872 that are configured to deflect when a compressive force is applied. However, the spring member 3870 may include any suitable configuration.

In addition to the above, again with reference to FIG. 61, the input shaft of the tool assembly 3800 may rotate the third transmission portion 3868. However, the spring member 3870 disposed between the second transmission portion 3864 and the third transmission portion 3868 may cause the proximal gear portion 3867 of the second transmission portion 3864 to be the distal gear of the third transmission portion 3868. The rotation of the third transmission portion 3868 cannot be transmitted to the second transmission portion 3864 unless it is sufficiently compressed to connect with the portion 3869. Similarly, a spring member 3870 disposed between the first transmission portion 3862 and the second transmission portion 3864 may cause the proximal gear portion 3865 of the first transmission portion 3862 to be distal to the second transmission portion 3864. The second transmission portion 3864 may not transmit rotational motion to the first transmission portion 3862 unless it is sufficiently compressed to connect with the gear portion 3866. As discussed above, the drive shaft 3830 may combine the first transmission portion 3862 with the second transmission portion 3864 when the staple cartridge is fully secured onto the shaft frame 3810, as illustrated in FIG. Engage and engage the second transmission portion 3864 with the third transmission portion 3868. In such cases, the rotation of the input shaft may be transmitted to the drive shaft 3830. However, if the staple cartridge was not completely secured onto the shaft frame 3810, the one or more transmission portions 3862, 3864, and 3868 would not operably engage with each other and of the input shaft. The rotation cannot be transmitted to the drive shaft 3830. Therefore, the tool assembly 3800 ensures that the staples stored in the staple cartridge cannot be ejected from the staple cartridge unless the staple cartridge is completely fixed on the shaft frame 3810.

Switching from here to FIGS. 66-68, the tool assembly 3900 comprises a shaft 3910 and a replaceable staple cartridge 3920. The replaceable staple cartridge 3920 is a closed drive that is configured to move the anvil with respect to the staple cartridge 3920, plus a rotation that is configured to eject staples that are retractably stored in the staple cartridge 3920. It comprises a launch drive with a formula launch shaft 3930 and. Similar to the above, the tool assembly 3900 comprises a lockout configured to prevent the firing drive from ejecting the staples from the staple cartridge 3920 unless the staple cartridge 3920 is completely or sufficiently secured onto the shaft 3910. .. More specifically, the lockout prevents the firing shaft 3930 from rotating within the staple cartridge 3920 unless the staple cartridge 3920 is completely or sufficiently secured onto the shaft 3910. In various cases, with reference to FIG. 67, the launch shaft 3930 comprises an annular array of lock openings 3939 defined on its outer periphery, and the staple cartridge 3920 is removable from the lock openings 3939 defined on the shaft 3930. It comprises at least one lock 3929 configured to engage with. The lock 3929 comprises a cantilever beam extending proximally. However, any suitable configuration can be utilized. The lock 3929 further comprises a locking projection that extends into the locking opening 3939 and prevents the firing shaft 3930 from rotating or at least substantially rotating with respect to the body of the staple cartridge 3920. The lock 3929, as illustrated in FIG. 68, is a lock defined on the launch shaft 3930 until the lock 3929 is lifted out of the lock opening 3939 when the staple cartridge 3920 is fully or fully assembled to the shaft 3910. It is configured to be urged to engage with the opening 3939. With reference to FIG. 68, the outer housing of the shaft 3910 comprises a wedge 3919 configured to lift the lock 3929 away from the firing shaft 3930 and disengage the lock 3929 from the lock opening 3939. The wedge 3919 is configured so that the lock 3929 does not disengage from the firing shaft 3930 unless the staple cartridge 3920 is completely or sufficiently secured onto the shaft 3910, as illustrated in FIG. FIG. 67 illustrates a scenario in which the staple cartridge 3920 is not completely or fully secured onto the shaft 3910.

Switching from here to FIGS. 69-71, the tool assembly 4000 comprises a shaft 4010 and a replaceable staple cartridge 4020. The replaceable staple cartridge 4020 is a closed drive that is configured to move the anvil with respect to the staple cartridge 4020, plus a rotation that is configured to eject staples that are retractably stored in the staple cartridge 4020. It comprises a launch drive with a formula launch shaft 3930 and. The staple cartridge 4020 includes a lock 4029 configured to detachably connect the staple cartridge 4020 to the shaft 4010. The lock 4029 includes a cantilever extending proximally and a lock shoulder 4028 extending from the cantilever. The lock 4029 is in an undistorted state in which the staple cartridge 4020 is assembled to the shaft 4010 when the lock shoulder 4028 of the lock 4029 is aligned with the window 4019 defined in the outer housing of the shaft 4010. It is configured to deflect inwardly within the shaft 4010 so that it elastically returns or at least heads towards the same state. In such cases, as illustrated in FIG. 70, the lock shoulder 4028 enters the window 4019 when the staple cartridge 4020 is completely or sufficiently secured onto the shaft 4010. To unlock the staple cartridge 4020, the clinician may insert, for example, a tool or his or her finger into the window and push the lock 4029 away from the window 4019. At this point, the staple cartridge 4020 is removed from the shaft 4010 and a new staple cartridge can be attached to the shaft 4010 if the clinician so desires.

In addition to or in place of the above, surgical staple fastening systems allow the stapled system's closure drive to tissue the anvil when the staple cartridge is fully or sufficiently secured onto the stapled system's shaft. It may be equipped with an electrical lockout that is configured to prevent clamping and / or prevent the firing drive from making its firing stroke. In various cases, the staple system is configured to operate a launch drive, in addition to a sensor that is configured to detect whether the staple cartridge is fully or sufficiently anchored on the shaft. It may be equipped with an electric motor. The motor may be electrically deactivated if the sensor detects that the staple cartridge has not been fully or sufficiently mounted on the shaft. In various cases, the staple system comprises a controller communicating with a sensor and an electric motor, such as a microprocessor. In at least one case, the controller first allows the electric motor to operate when the sensor detects a staple cartridge that is properly anchored on the shaft, and secondly improperly on the shaft. It is configured to prevent the electric motor from operating when the sensor detects a fixed staple cartridge.

Switching from here to FIG. 72, the tool assembly kit 4100 includes a shaft 4110 and a plurality of staple cartridges such as 4120, 4120 ′, 4120 ″, and 4120 ″ ″. Each staple cartridge 4120, 4120 ″, 4120 ″, and 4120 ″ ″ are configured to apply a ring of staples with different diameters. For example, the staple cartridge 4120'''is configured to apply staples in a pattern with a large diameter, while the staple cartridge 4120 is configured to apply staples in a pattern with a small diameter. ing. In various cases, different staple cartridges may deploy staples with different unformed heights. In at least one case, staple cartridges that apply staples in a larger pattern deploy staples with a larger undeformed height, while staple cartridges that apply staples in a smaller pattern deploy smaller undeformed heights. Deploy staples with height. In some cases, the staple cartridge may deploy staples with two or more unformed heights. In any case, a staple cartridge selected from a plurality of staple cartridges can be assembled to the shaft 4110.

With reference to FIGS. 72 and 73, the tool assembly 4100 includes a detection circuit 4190 configured to detect whether the staple cartridge is fully or sufficiently mounted on the shaft 4110. The detection circuit 4190 is not entirely housed in the shaft 4110. Rather, the staple cartridge must be properly assembled to the shaft 4110 to complete the detection circuit 4190. The detection circuit 4190 comprises a conductor 4193 extending through a path 4192 defined in the frame of the shaft 4110 and / or along the outer housing of the shaft 4110. Primarily with reference to FIG. 73, each conductor 4193 is electrically connected to an electrical contact 4194 defined at the distal end of the housing. The staple cartridge 4120 comprises, for example, a corresponding electrical contact 4195 arranged or configured on the body 4122 of the staple cartridge 4120 such that the contact 4195 engages the contact 4194 on the shaft 4110. The staple cartridge 4120 further comprises a conductor 4196 extending through and / or along the cartridge body 4122. Each conductor 4196 is electrically connected to the contact 4195. In certain cases, the conductors 4196 are directly connected to each other, and in such cases the detection circuit 4190 is closed when the staple cartridge 4120 is properly assembled to the shaft 4110.

In certain cases, in addition to the above, the detection circuit 4190 of the tool assembly 4100 extends through the deck portion 4124 of the staple cartridge 4120. In at least one case, the deck portion 4124 is movably attached to the cartridge body 4122. More specifically, in at least one such case, the spring member 4198 is placed between the cartridge body 4122 and the deck portion 4124, and when the tissue is compressed against the deck portion 4124, the deck portion 4124 It is configured to allow it to move or float relative to the cartridge body 4122. In at least one case, the spring member 4198 includes, for example, one or more corrugated springs. The spring member 4198 also forms a conductive path between the cartridge body 4122 and the deck portion 4124. More specifically, the spring members 4198 are arranged between the electrical contacts 4197 and 4199 defined on the cartridge body 4122 and the deck portion 4124, respectively. The conductor 4196 is electrically connected to an electrical contact 4197 defined on the distal end of the cartridge body 4122, and the electrical contacts 4199 are electrically connected to each other through a conductor in the deck portion 4125. doing. As discussed above, when the staple cartridge 4120 is properly assembled to the shaft 4110, the detection circuit 4190 is closed.

Switching from here to FIGS. 74-76, the tool assembly 4200 is configured to prevent the replaceable ring-shaped staple cartridge from being fired more than once, as described in further detail below. Equipped with lockout. During use, the replaceable ring staple cartridge 4220 is assembled to the shaft 4210 of the tool assembly 4200. The tool assembly 4200 is then placed at the surgical site and the anvil 2230 is assembled to the closed drive trocar 2450. The closed drive is then used to move the anvil 2230 towards the staple cartridge 4220 to clamp the patient's tissue against the staple cartridge 4220 until the anvil 2230 reaches the closed or clamp position. This arrangement of the anvil 2230 is illustrated in FIG. At such a point, the launch drive may operate to deploy the staples reclaimably stored in the staple cartridge 4220. The launch drive includes, among other things, a rotary drive shaft 4230 screwed with a drive collar 4240 and, in addition, a staple launch driver 2560. The drive collar 4240 and the launch driver 2560 have separate components. However, in an alternative embodiment, the drive collar 4240 and the launch driver 2560 can be integrally formed. The firing drive pushes the drive collar 4240 and the staple firing driver 2560 distally between the unlaunched position (FIG. 74) and the firing position (FIG. 75) during the firing stroke to eject the staples from the staple cartridge 4220. In addition, it is rotatable in the first direction. The drive collar 4240 and staple driver 2560 are prevented from rotating within the staple cartridge 4220, resulting in the drive shaft 4230 rotating relative to the drive collar 4240 and staple driver 2560.

In addition to the above, the drive collar 4240 comprises one or more lockouts 4290 extending proximally from it. Each lockout 4290 comprises a lockout pin 4292 slidably arranged within a pin opening 4293 defined in the drive collar 4240. Each lockout 4290 further comprises an urging member, such as a spring 4294 configured to urge the pin 4292 proximally. As illustrated in FIG. 74, when the firing drive is in its unfired configuration, the lockout 4290 does not engage the rotary drive shaft 4230 and / or the frame 4222 of the staple cartridge 4220. As illustrated in FIG. 75, when the drive collar 4240 and staple driver 2560 are pushed distally by the drive shaft 4230, the lockout pin 4292 moves away from the drive shaft 4230. After the firing stroke is complete and the staples are sufficiently deformed relative to the anvil 2230, the drive shaft 4230 is rotated in opposite directions to pull the drive collar 4240 and staple driver 4260 proximally during the retreat stroke. .. In such cases, the lockout 4290 is moved towards the drive shaft 4230. In particular, the receding stroke is longer than the firing stroke, and as a result, as illustrated in FIG. 76, the drive collar 4240 is moved to the receding position, proximal to its original unlaunched position. At this retracted position of the drive collar 4240, the lockout 4290 becomes engaged with the drive shaft 4230 and the frame 4222 of the staple cartridge 4220. More specifically, each lockout 4290 is contained within a lockout opening defined between the drive shaft 4230 and the cartridge frame 4222. From here with reference to FIG. 78, each lockout opening is defined by an opening wall 4295 at the drive shaft 4230 and an opening wall 4296 at the frame 4222. When the lockout pin 4292 enters the lockout opening, the drive collar 4240 cannot be rotated by the drive shaft 4230 and the firing system of the staple cartridge 4220 is locked out. As a result, the particular staple cartridge 4220 cannot be reused and the tool assembly 4200 needs to be replaced with a new staple cartridge in order to be reused.

In addition to the above, the reader may or may not place the lockout pin 4292 partially in the lockout opening if the firing drive is in its unfired configuration, as illustrated in FIG. 74. You should understand that it is okay. However, in such cases, as long as the lockout pin 4292 is partially located in the lockout opening, the pin 4292 will be within the pin opening 4293 defined by the drive collar 4240 when the firing drive shaft 4230 is rotated. Can move distally. The reader also wants to prevent the pin 4292 from being moved distally out of the lockout opening if the drive collar 4240 is moved to its retracted position and the launch drive shaft 4230 is rotated again in the first direction. It should be understood that the lockout pin 4292 is secured deep enough within the lockout opening defined in the drive shaft 4230.

With reference to FIG. 78 again, when the drive collar 4240 is in its retracted position, the side walls 4295 and 4296 of the lockout opening are aligned with respect to each other. However, if the drive shaft 4230 rotates, the side wall 4295 defined on the drive shaft 4230 will rotate to disalign with the side wall 4296 defined on the cartridge frame 4222. In some cases, the side wall 4295 may rotate momentarily as the launch drive 4230 rotates and realign with the side wall 4296. In any case, with reference to FIG. 77 from here, the side wall 4295 will not be aligned with the side wall 4296 if the launch system is in its unlaunched configuration. As a result, the lockout pin 4292 cannot enter the lockout opening when the firing system is in its unfired position, and the staple cartridge 4220 cannot be unintentionally locked out.

In at least one alternative embodiment, with reference to FIG. 80 from here, one or more lockout openings 4295'' may be defined exclusively to the drive shaft 4230'' of the tool assembly 4200''. .. In such an embodiment, the drive collar 4240 will not be able to rotate with respect to the drive shaft 4230 ″ once the lockout pin 4292 is within the lockout opening 4295 ″. In effect, both the drive collar 4240 and the drive shaft 4230'' will be locked synchronously, but they do not necessarily have to be locked to the frame of the tool assembly 4200'', which is the drive. The shaft 4230'' will rotate relative to the drive collar 2440 and prevent the drive collar 2440 from being displaced distally.

In at least one alternative embodiment, with reference to FIG. 79, each launch drive lockout has a different configuration such that each lockout pin is uniquely indexed to its corresponding lockout opening. .. For example, the tool assembly 4200'has a first lockout pin configured to enter a first lockout opening defined by side walls 4295 and 4296 and a second lockout pin defined by side walls 4295'and 4296'. It comprises a second lockout pin that is configured to enter the lockout opening. However, the first lockout pin of the tool assembly 4200'is sized and configured so that it cannot fit into the second lockout opening, and correspondingly the second lockout pin is the first. The size and configuration are such that they cannot fit inside the lockout opening. Further, both the first lockout pin and the second lockout pin can enter an opening formed by a combination of side walls 4295 and 4296'or an opening formed by a combination of side walls 4295'and 4296'. No.

As discussed above, staple fasteners configured to deploy a ring of staples may include articulated joints. The joint joint is configured to allow the end effector of the staple fastener to move jointly with respect to the shaft of the staple fastener. Such staples may assist the surgeon in placing end effectors in the patient's rectum and / or colon. In various embodiments, with reference to FIG. 81, staple fasteners configured to deploy a ring of staples, such as staple fasteners 9000, include a contourable or adjustable frame 9010. obtain. The frame 9010 may be configured to be continuously deformed during use. In at least one such embodiment, the frame 9010 is composed of, for example, malleable metals such as silver, platinum, palladium, nickel, gold, and / or copper. In certain embodiments, the frame 9010 is made of, for example, malleable plastic. In at least one embodiment, the frame is composed of, for example, a polymer containing metal ions attached to a polymer chain, such as an ionic polymer-metal composite (IPMC). One or more voltage potentials may be applied to the IPMC material to defect the shaft in the desired manner. In certain cases, the shaft can be contoured along one radius of curvature, while in other cases the shaft can be contoured along two or more radii of curvature. For example, while the shaft is in the patient's body, one or more voltage potentials can be modified to contour the shaft. In certain embodiments, the contourable portion of the frame comprises a plurality of swivel links. In at least one embodiment, the contourable portion of the frame is made of a viscoelastic material.

In addition to the above, the staple fastening device may further comprise a lock configured to releaseably hold the contourable portion of the frame of the staple fastening device in its contouring configuration. In at least one case, the stapler frame comprises an articulated frame link and one or more longitudinal tension cables capable of pulling the frame link proximally and locking the frame links together. In certain cases, each frame link may include a longitudinal opening extending through it that is configured to receive a rod that can move distally. The rod is flexible enough to pass through the longitudinal openings (when the contourable portions are contoured, these openings may not be perfectly aligned with each other), but stapled. It is rigid enough to hold the instrument in its contoured configuration.

As discussed herein, surgical instruments can consist of multiple modules that are assembled together. For example, in at least one embodiment, the surgical instrument comprises a first module with a handle and a second module with a shaft assembly. The shaft assembly comprises an end effector that is configured to staple and / or make an incision in the patient's tissue. However, the shaft assembly may include any suitable end effector. In various cases, the end effector comprises a third module that can be attached to the shaft assembly. From here, with reference to FIGS. 82 and 83, a handle, such as the handle 20, comprises a controller and a display 10000 communicating with the controller. The controller is configured to display data on the operation of the surgical instrument on the display 10000. The data displayed on the display 10000 relates to information to the surgeon regarding at least one motion parameter of the first module and / or at least one motion parameter of the second module. For example, the controller may display data on the progress of the staple firing stroke on the display 10000.

In addition to the above, the shaft assembly comprises a second display. For example, shaft assembly 2000 includes display 10100. However, any of the shaft assemblies disclosed herein may include a display, such as the display 10100. The second module itself comprises a controller configured to display data on the operation of the surgical instrument on the display 10100. Similar to the above, the data displayed on the display 10100 relates to information about at least one operating parameter of the first module and / or at least one operating parameter of the second module. The controller of the second module communicates with the controller of the first module by signal. However, in other embodiments, the controller of the second module may operate independently of the controller of the first module. In certain alternative embodiments, the second module does not include a controller. In such an embodiment, the controller of the first module is in signal communication with the first display 10000 and the second display 10100, and the data displayed on the first display 10000 and the second display 10100. To control.

As discussed above, the tool assembly 2000 comprises an anvil and a staple cartridge. The handle 20 comprises an actuation system configured to move the anvil with respect to the staple cartridge. The anvil controls the distance or gap between the anvil and the staple cartridge, and as a result, a range of positions relative to the staple cartridge to control the height of staple formation as the staple is ejected from the staple cartridge. Can be placed in. For example, the anvil is placed closer to the staple cartridge to deform the staples to a lower preformed height and further away from the staple cartridge to deform the staples to a higher preformed height. NS. In any case, the second display 10100 of the tool assembly 2000 is configured to show the position of the anvil with respect to the staple cartridge and / or the height at which the staples will be formed or formed. Has been done. In various embodiments, the shaft assembly may include an actuator that is configured to control the function of the end effector and a display that is adjacent to the actuator and displays data about the function of the end effector.

With reference to FIG. 1, the tool assembly 1500 includes a shaft and an end effector extending from the shaft. The shaft comprises a shaft frame and a longitudinal shaft axis. The end effector includes an end effector frame and a longitudinal end effector axis. The end effector further comprises a distal head and a rotating joint that allows the distal head to rotate about the longitudinal end effector axis with respect to the end effector frame. The distal head comprises a first jaw and a second jaw. The first jaw comprises a staple cartridge containing staples retractably stored internally or a channel configured to receive such staple cartridges, the second jaw to deform the staples. It has a configured anvil. The second jaw is movable between the open position and the closed position with respect to the first jaw. However, other embodiments are recalled in which the first jaw is movable relative to the second jaw and / or both the first and second jaws are movable relative to each other. NS.

In certain embodiments, the tool assembly may comprise a joint joint and, in addition, a rotary joint. In at least one such embodiment, the rotary joint is distal to the joint joint. In such an embodiment, the rotation of the distal head does not affect the angle at which the end effector is articulated. However, other embodiments are recalled in which the joint joint is distal to the rotary joint. Such an embodiment may provide a wide sweep of the distal head. In any case, the longitudinal end effector axis is movable with respect to the longitudinal shaft axis. In at least one case, the longitudinal end effector axis is movable between a collinear position with the longitudinal shaft axis and a position crossing the longitudinal shaft axis.

In addition to the above, the distal head of the tool assembly 1500 is rotatable between the starting position and the rotated position. In at least one case, the distal head is rotatable between a zero or top dead center position and a second position. In certain cases, the distal head is rotatable in a motion range of at least 360 degrees. In other cases, the distal head is rotatable in a rotation range of less than 360 degrees. In any case, the tool assembly 1500 and / or the handle 20 is configured to track the rotational position of the distal head. In various cases, the tool assembly 1500 and / or handle 20 directly tracks and / or rotates the rotation of the distal head, in addition to the electric motor that is operably connected to the distal head of the end effector. For example, it comprises an encoder configured to indirectly track the rotation of the distal head by assessing the rotational position of the shaft of the electric motor. The controller of the handle 20 is, for example, signal-communicating with the encoder and is configured to display the rotational position of the distal head on the display 10000.

In at least one embodiment, the orientation and composition of the data displayed on the display 10000 is static while the distal head of the end effector is rotating. Naturally, in such an embodiment, the data displayed on the display 10000 will be updated by the controller of the surgical instrument. However, the data display is not reoriented and / or reconstructed as the distal head rotates. Such embodiments may provide the surgeon with the information necessary to properly utilize the surgical instrument in the static field. In at least one alternative embodiment, the data fields on the display 10000 are dynamic. In this context, the term dynamic means more than updating data on the display 10000. Rather, the term dynamic means that when the distal head is rotated, the data is reoriented and / or reconstructed onto the display 10000. In at least one case, the orientation of the data tracks the orientation of the distal head. For example, if the distal head rotates 30 degrees, the data field on the display 10000 will rotate 30 degrees. In various cases, the distal head can rotate 360 degrees and the data field can rotate 360 degrees.

In addition to the above, the data field can be oriented in any orientation that matches the orientation of the distal head. Such embodiments may provide the surgeon with an accurate and intuitive sense of orientation of the distal head. In certain embodiments, the controller orients the data field to an orientation selected from an array of distinct locations that most closely matches the orientation of the distal head. For example, if the distal head is rotated 27 degrees and the separate selectable data field positions are separated by 15 degrees, the controller may reorient the data fields by 30 degrees from the data orientation. Similarly, for example, if the distal head is rotated 17 degrees and the separate selectable data field positions are 5 degrees apart, the controller may reorient the data fields 15 degrees from the data orientation. In at least one embodiment, the data orientation is aligned with the mechanism of the surgical instrument itself. For example, the data orientation of the handle 20 is aligned with the axis extending through the grip of the handle 20. In such an embodiment, the controller may ignore the orientation of the handle 20 with respect to its environment. However, in at least one alternative embodiment, the data orientation is aligned with, for example, the axis of gravity.

In addition to the above, the controller is configured to reorient the entire data field displayed on the display 10000 with respect to the orientation of the distal head. In another embodiment, the controller is configured to reorient only a portion of the displaced data field on the display 10000 with respect to the orientation of the distal head. In such an embodiment, one part of the data field is held statically with respect to the data orientation, while another part of the data field is rotated with respect to the data orientation. In certain embodiments, the first portion of the data field is rotated by a rotation of a first angle and the second portion of the data field is rotated by a rotation of a second angle in the same direction. For example, the second portion can be rotated less than the first portion. In various embodiments, the first portion of the data field is rotated in the first direction and the second portion of the data field is rotated in the second or opposite direction.

In addition to the above, the data field is reoriented and / or reconstructed in real time or at least substantially in real time with respect to the rotation of the distal head. Such an embodiment provides a highly responsive data display. In other embodiments, reorientation and / or reconstruction of the data field may slow the rotation of the distal head. Such an embodiment may provide a data display with less jitter. In various embodiments, the first part of the data field is reoriented and / or reconstructed at the first rate, and the second part of the data field is reoriented and / or reconfigured at the second or different rate. It is composed. For example, the second part can be rotated at a slower speed.

As discussed above, the data field on the display 10000 is rotated as the distal head of the end effector rotates. However, in other embodiments, the data field or part of the data field is translated as the distal head rotates. Also, as discussed above, the controller of the surgical instrument is configured to reorient and / or reconfigure the data fields on the handle display 10000. However, the controller of the surgical instrument can reorient and / or reconfigure the data field on a second display, such as a shaft display.

With reference to FIGS. 15 and 83 again, the tool assembly 2000 comprises an actuator 10200 configured to actuate the joint drive system of the tool assembly 2000. Actuator 10200 is rotatable about, for example, a longitudinal axis parallel to or at least substantially parallel to the longitudinal axis of shaft 2100. The actuator 10200 is operably connected to, for example, a rheostat, which is in signal communication with the controller of the handle 20. When the actuator 10200 rotates about its longitudinal axis in the first direction, the rheostat detects the rotation of the actuator 10200 and the controller operates an electric motor to articulate the end effector 2200 in the first direction. Exercise. Similarly, if the actuator 10200 rotates about its longitudinal axis in the second or opposite direction, the rheostat detects the rotation of the actuator 10200 and the controller operates an electric motor to drive the end effector 2200 to the second. Or move the joint in the opposite direction. In various cases, the end effector 2200 is, for example, articulated about 30 degrees in the first direction from the longitudinal axis and / or about 30 degrees in the second or opposite direction from the longitudinal axis. obtain.

In addition to the above, the reader should understand that the tool assembly 2000 does not have an onboard electric motor that is configured to operate the joint drive system. Rather, the electric motor of the joint drive system resides on a handle, such as the handle 20 attached to the tool assembly 2000. As a result, the actuator on the removable shaft assembly controls the movement of the handle. In other embodiments, the electric motor of the joint driver system may be present in the tool assembly 2000. In any case, the display 10100 is configured to show the joint motion of the end effector 2200 in at least some fashion. The reader should understand that the display 10100 is adjacent to the actuator 10200 and, as a result, the surgeon can easily see the inputs and outputs of the joint drive system at the same time.

In addition to the above, a surgical tool assembly with a contourable shaft can be advantageously shaped to fit, for example, into the patient's rectum or colon. However, such contourable shafts cannot have a significant amount of tension and / or compressive load. To compensate for this, in various embodiments, only the rotary drive system may extend through the contourable portion of the shaft. In such cases, the shaft only needs to resist the rotational reaction force generated by the rotary drive system. In such an embodiment, the rotational motion of the drive system can be converted into a linear motion distal to the contourable shaft portion, if desired. Such longitudinal motion can generate tension and / or compressive force. However, such forces can be split or balanced out of the end effector, i.e., distally to the contourable shaft portion. Such embodiments may also utilize articulated joints located distal to the contourable shaft portion. In such an embodiment, the tool assembly may not utilize a push-pull drive system across a contourable shaft portion.

84 and 85 show anvil 6020 ring-shaped staple fasteners. The anvil 6020 comprises a tissue compression surface 6022 and an annular array of staple forming pockets 6024 defined on the tissue compression surface 6022. The anvil 6020 further comprises a frame 6028, a mounting mount 6026, and a stem extending from the mounting mount 6026. The stem is configured to be detachably attached to the closure drive of the annular staple fastener so that the anvil 6020 can be moved towards and away from the staple cartridge of the annular staple fastener. The compression surface 6022, mounting mount 6026, and frame 6028 are made of, for example, stainless steel. However, any suitable material may be used.

In addition to the above, the anvil 6020 comprises a tissue support 6030. The tissue support 6030 is placed within an annular opening defined within the tissue support surface 6022. The tissue support 6030 is snugly secured within the anvil 6020 so that there is little relative movement between them, if any. The tissue support 6030 comprises an annular tissue support surface 6032 adjacent to the annular tissue compression surface 6022 of the anvil 6020. The tissue support 6030 further comprises an internally defined inner annular wall 6036 and, in addition, a bottom wall 6038 disposed adjacent to the anvil frame 6028 of the anvil 6020.

From here, with reference to FIG. 86, the ring-shaped staple fasteners are the first annular row of staples 6070, the second annular row of staples 6080, and the staples 6070 and 6080 during the firing stroke of the firing drive from the staple cartridge 6040. It comprises a staple cartridge 6040, comprising a firing drive configured to eject into. As illustrated in FIG. 86, the staples 6070 and 6080 are deformed by the forming pocket 6024 as they are ejected from the staple cartridge 6040. In various cases, the staples 6070 and staples 6080 are deformed to the same height, while in other cases the staples 6070 and staples 6080 are deformed to different heights. For example, staple 6070 can be deformed to a deformed height lower than staple 6080. In another example, the staple 6080 is deformed to a height lower than the staple 6070.

In addition to or in place of the above, staples 6070 and staples 6080 may have different unformed heights. For example, staple 6070 may have a lower unformed height than staple 6080. In another example, the staple 6080 has a lower unformed height than the staple 6070. In certain cases, the staples 6070 and staples 6080 have the same unformed height.

If the staples 6070 and 6080 are deformed relative to the anvil 6020 and the tissue T trapped between the anvil 6020 and the staple cartridge 6040 is stapled, in addition to the above, the staple fastening device may incise the tissue T. .. A firing drive that ejects the staples from the staple cavity drives the cutting member 6050 towards the tissue T and the anvil 6020. The distal edge of the cutting member 6050 cuts the tissue T and then slides along the medial side wall 6036 of the tissue support 6030 without cutting the medial side wall 6036. The cutting edge of the cutting member 6050 is annular and is aligned with the annular inner wall 6036 of the tissue support 6030. As illustrated in FIG. 86, the cutting member 6050 advances within the anvil 6020 until the cutting member 6050 cuts the bottom wall 6038.

The launch drive experiences various loads in driving the staples 6070 and 6080 against the anvil 6020 and / or cutting the tissue. For example, the launch drive may experience an increased load when cutting pre-stapled tissue, for example with staples 6090 (FIG. 86). However, cutting the bottom wall 6038 by the cutting member 6050 causes a sudden change or impact in the force transmitted through the launch drive. This sudden change due to force can be perceived by a clinician using an electronic sensor system that is configured to detect load changes in the surgical stapler and / or launch drive. The tissue support 6030 may be composed of a material that allows the cutting member 6050 to snap when a load is applied to the bottom wall 6038. In at least one case, the tissue support 6030 is made of, for example, plastic. In any case, a cut in the bottom wall 6038 can be detected, and if detected, the clinician and / or the electronic sensor system can determine that the cutting process is complete.

The launch drive deforms the staples 6070, 6080 and at the same time cuts the tissue with the cutting member 6050. However, it is contemplated that the staple forming and tissue cutting steps can be staggered. In at least one case, the tissue cutting step does not begin until the staple forming step is complete.

Although the surface 6032 may partially support the tissue T, the cutting member 6050 attaches the tissue T to the inner wall 6036 of the tissue support 6030 and the mounting mount 6026 as the cutting member 6050 is moved towards the bottom wall 6038. It should be understood from FIG. 86 that it can be pushed into the cavity defined between and. In other words, the cutting member 6050 can pull the tissue T along the wall 6036 before finally cutting the tissue T. In such cases, the incision made by the cutting member 6050 does not have to be accurate. Improvements to the embodiments disclosed in FIG. 86 will be considered below.

Switching from here to FIGS. 87 and 88, the tissue support 6030 of the anvil 6020 has been replaced by the tissue support 6130. The tissue support 6130 comprises a first or outer annular wall 6131 and a second or inner annular wall 6133. The inner wall 6133 defines an opening 6136 that is configured to tightly receive the mounting mount 6026. The outer side wall 6131 and the inner side wall 6133 are connected by a side wall 6132. The lateral wall 6132 extends radially around the center of the tissue support 6130 between the inner wall 6133 and the outer wall 6131. The lateral walls 6132 are evenly spaced apart from each other. However, alternative embodiments are contemplated in which the lateral walls 6132 are not evenly spaced apart from each other. In any case, the lateral wall 6132 defines an annular array of cavities 6134 in the tissue support 6130. In various cases, each cavity 6134 may be surrounded, for example, on all sides, but not the side facing the tissue. In other cases, the sides of the cavity facing the tissue can be enclosed.

The outer wall 6131 and inner side wall 6133 of the tissue support 6130 are configured to support the tissue as it is cut by the cutting member 6050. The lateral wall 6132 also supports the tissue as it is cut, and in addition prevents or resists the tissue from sliding against the outer wall 6131 and the inner wall 6133. It should be understood that the tissue can enter the cavity 6134 when the tissue is cut. However, the relative movement between the tissue and the sidewalls can be significantly reduced. The composition and composition of the lateral wall 6132 may be selected to provide more support for the tissue or less support for the tissue, depending on the desired amount of support. For example, a thicker lateral wall 6132 may provide more tissue support than a thinner lateral wall 6132. Similarly, more lateral walls 6132 may provide more tissue support than thinner lateral walls 6132.

As the cutting member 6050 moves through its cutting stroke, the cutting member 6050 cuts the tissue and cuts the side wall 6132. The cutting member 6050 is annular and cuts the lateral wall 6132 adjacent to the outer wall 6131. However, the cutting member can cut the wall 6132 at any suitable position. In any case, the lateral wall 6132 supports the tissue before, during, and after the tissue is cut, preventing or preventing the tissue from being drawn along the outer wall 6131 and / or the inner wall 6133. , At least reduce the possibility of pulling in. Like the tissue support 6030, the tissue support 6130 comprises a bottom wall 6138 that is cut at the end of the cutting stroke.

89 and 90 disclose a surgical stapler comprising a staple cartridge 6240 and an anvil 6220. The staple cartridge 6240 is similar to the staple cartridge 6040 in many respects. Anvil 6220 is similar to Anvil 6020 and Anvil 6120 in many respects. The anvil 6220 comprises a mounting stem 6226 and an annular tissue support 6230 disposed around the mounting stem 6226. The tissue support 6230 comprises a central opening configured to tightly receive the stem 6226. The tissue support 6230 further comprises an annular outer wall 6231 arranged adjacent to the tissue compression surface of the anvil 6220, plus a lateral wall 6232 extending radially from the outer wall 6231. Tissue support 6230 does not have an inner annual wall and the inner edge of the lateral wall 6232 is not distorted. The tissue support 6230 further comprises a bottom wall 6238 that is incised by the cutting member 6050, as described above.

91 and 92 show a surgical stapler comprising a staple cartridge 6240 and an anvil 6220. However, the reader should understand that the tissue support 6230 of the anvil 6220 has been replaced by the tissue support 6330. Tissue support 6330 comprises an annular central opening that is configured to tightly receive stem 6226. The tissue support 6330 further comprises an upper wall 6332, a bottom wall 6338, and a side wall 6336 extending between the upper wall 6332 and the bottom wall 6338. The top wall 6332 and bottom wall 6338 are parallel or at least substantially parallel. However, embodiments are recalled in which the walls 6332 and 6338 are not parallel. The side wall 6336 is parallel or at least substantially parallel. However, embodiments are recalled in which the side walls 6336 are not parallel.

The walls 6332, 6336, and 6338 define an annular cavity 6334 between them. The cavity 6334 is surrounded on all sides, or at least substantially surrounded. Cavity 6334 extends uninterrupted around stem 6226. However, other embodiments are recalled in which the cavity 6334 is interrupted, for example, by a side wall and / or shape change.

Similar to the above, the tissue support 6330 is configured to support the tissue as it is cut by the cutting member 6050. The tissue support 6330 is tightly received within the anvil 6220 so that the tissue support 6330 does not move, or at least substantially does not move with respect to the anvil 6220. In addition, the tissue support 6330 has a rigid box-shaped cross section such that the tissue support 6330 is minimally or slightly strained while the cutting member 6050 is cutting the tissue. As illustrated in FIG. 91, a gap exists between the bottom wall 6338 and the inner side wall 6336. Such a gap may provide some flexibility to the tissue support 6330. However, other embodiments are recalled in which such a gap does not exist. The tissue support 6330 is made of, for example, plastic. However, in various embodiments, the tissue support 6330 may be constructed, for example, from a flexible and / or elastic material.

The cutting member 6050 cuts the tissue support 6330 during its cutting stroke. As illustrated in FIG. 92, the cutting member 6050 cuts the tissue and then cuts the upper wall 6332 after entering the cavity 6334. The upper wall 6332 includes an annular notch 6333 defined internally and aligned with the annular cutting edge of the cutting member 6050. The notch 6333 reduces the cross section of the upper wall 6332 and facilitates the incision of the upper wall 6332. The cutting member 6050 may also cut the bottom wall 6338 during its cutting stroke. The reader should understand that the cutting of the upper wall 6332 and bottom wall 6338 of the tissue support 6330 can result in a pulse of force in the firing drive of the staple fastener. The upper wall 6332 and bottom wall 6338 allow the electronic sensor system of the clinician and / or surgical instrument to identify the difference between pulses at the end of the firing / cutting stroke, improperly incising the upper wall 6332. It can be structurally configured to provide different pulses so that it cannot be interrupted.

With reference to FIGS. 91 and 92 again, the upper wall 6332 of the tissue support 6330 is aligned with, or at least substantially aligned with, the tissue compression surface 6022 of the anvil 6220. In addition to or instead of the above, the upper wall 6332 can be recessed with respect to the tissue compression surface 6022 and / or extend over the tissue compression surface 6022. The upper wall 6332 of the tissue support extends over the forming surface 6024 of the anvil 6220. In addition to or instead of the above, the upper wall 6332 can be recessed with respect to the forming surface 6024 and / or aligned with the forming surface 6024.

93 and 94 show a surgical stapler comprising a staple cartridge 6240 and an anvil 6220. However, the reader should understand that the tissue support 6230 of the anvil 6220 has been replaced by the tissue support 6430. Tissue support 6430 comprises an annular central opening that is configured to tightly receive stem 6226. The tissue support 6430 further comprises an upper wall 6432, a bottom wall 6438, and a side wall 6436 extending between the upper wall 6432 and the bottom wall 6438. The walls 6432, 6436, and 6438 define an annular cavity 6434 between them. The cavity 6434 is surrounded on all sides, or at least substantially surrounded. Cavity 6434 extends uninterrupted around stem 6226. However, other embodiments are recalled in which the cavity 6434 is interrupted, for example, by a side wall and / or shape change.

Similar to the above, the tissue support 6430 is configured to support the tissue as it is cut by the cutting member 6050. The tissue support 6430 is tightly received within the anvil 6220 so that the tissue support 6430 does not move, or at least substantially does not move with respect to the anvil 6220. In addition, the tissue support 6430 comprises a rigid polygonal cross section such that the tissue support 6430 is minimally or slightly strained while the cutting member 6050 is cutting the tissue. As illustrated in FIG. 93, a gap exists between the bottom wall 6438 and the inner side wall 6436. Such a gap may provide some flexibility to the tissue support 6430. However, other embodiments are recalled in which such a gap does not exist. The tissue support 6430 is made of, for example, plastic. However, in various embodiments, the tissue support 6430 may be constructed, for example, from a flexible and / or elastic material.

As illustrated in FIGS. 93 and 94, the inner side wall 6436 is shorter than the outer side wall 3436. However, other embodiments are recalled in which the outer side wall 6436 is shorter than the inner side wall 6436. Moreover, the upper wall 6432 is not parallel to the bottom wall 6438. More specifically, the upper wall 6432 comprises an inclined portion extending laterally with respect to the bottom wall 6438 and / or another portion of the upper wall 6432.

The cutting member 6050 cuts the tissue support 6430 during its cutting stroke. As illustrated in FIG. 94, the cutting member 6050 cuts the tissue, then cuts the upper wall 6432, and then enters the cavity 6434. The cutting member 6050 may also cut the bottom wall 6438 during its cutting stroke.

As discussed above, the tissue supports disclosed herein are configured to support the tissue as it is incised by the cutting member. Often, the tissue incised by the cutting member is, for example, stapled first, i.e., stapled during the previous steps in surgery. In various cases, such staples may also be incised by a cutting member, for example, even if they are composed of metals such as titanium and / or stainless steel. In other cases, such staples do not have to be incised by the cutting member. Rather, they may be pushed into the materials that make up the tissue support. In various cases, whether or not the staples are incised by the cutting member, the tissue supports disclosed herein are those in which the staples captured by the cutting member against the tissue support are in the tissue support. It has sufficient strength and / or rigidity to prevent more local plastic deformation from occurring. In at least one such case, local plastic deformation is limited to a characteristic length (CL) of less than 1 of the staple in any direction with respect to the staple. In at least one case, the tissue support material allows the staples trapped against the tissue support to result in, for example, only plastic deformation zones in the tissue support having a diameter of less than ^{2 * CL.} Can be selected. In other cases, the material of the tissue support allows the staples trapped against the tissue support to produce only plastic deformation zones in the tissue support having a diameter of less than ^{1.5 * CL, for example.} Can be selected for. The characteristic length of the staple can be, for example, the width or backspan of the staple crown and / or the formed height of the staple leg in its modified configuration. In addition, the tissue supports disclosed herein may be composed of a material that is hard enough to support the staples as they are incised by the cutting member. In at least one case, the hardness of the material constituting the tissue support is equal to or greater than the hardness of the material constituting the staple incised with respect to the tissue support. In certain cases, the hardness of the material that makes up the tissue support is lower than the hardness of the material that makes up the staple to be incised. However, the structural design of the tissue support is sufficient to prevent the tissue support from physically stretching beyond the permissible zone of plastic deformation. In certain cases, the energy required to incise the tissue and the preformed staples in the tissue is less than the energy required to incise the tissue support. In various cases, the materials that make up the tissue support may be resistant to being scooped out by staples. In at least one case, a biocompatible lubricant may be placed on the tissue support and / or impregnated within the tissue support to prevent the staples from being trapped on the tissue support. ..

In various cases, the tissue compression surface of the anvil and the tissue contact surface of the tissue support are flat or at least substantially flat. With such a configuration, the force applied on the tissue by the anvil can be dispersed over a large area. Other embodiments are recalled in which the tissue compression surface of the anvil and / or the tissue contact surface of the tissue support is not flat. In certain cases, the tissue compression surface of the anvil and / or the tissue contact surface of the tissue support comprises a tissue gripping member or spike configured to extend from it and engage and grip the tissue. Such tissue gripping members can, for example, reduce relative movement or slip between tissue and anvil. In at least one case, the density of tissue gripping members on the tissue compression surface of the anvil and the tissue contact surface of the tissue support is the same. In other cases, the density of tissue gripping members on the tissue contact surface of the tissue support is higher than the density of tissue gripping members on the compression surface of the anvil. In such cases, if the tissue support is placed radially inward with respect to the compressed surface of the anvil, the tissue gripping member may prevent the tissue from floating or sliding radially inward. ..

Anvil 6520 is disclosed in FIG. 95. The anvil 6520 is defined by a tissue compression surface 6522 and, in addition, a tissue compression surface 6522, with a forming pocket configured to transform the staple into the desired configuration when the staple is ejected from its staple cartridge. To be equipped. Each forming pocket comprises a pair of cups, in which case each cup pair is configured to deform the legs of the staples. For example, the pair of forming cups consists of a first forming cup 6530a configured to deform the first leg of the staple and a second forming formed to deform the second leg of the staple. A cup 6530b and the like may be provided. The first forming cup 6530a and the second forming cup 6530b are mirror images of each other with respect to the axis 6531 extending between the first forming cup 6530a and the second forming cup 6530b. However, other configurations may be utilized.

The first forming cup 6530a comprises a first or outer end 6532 and a second or inner end 6534. The first forming cup 6530a further comprises a bottom surface or bathtub surface 6536 extending between the outer end 6532 and the inner end 6534. The first end 6532 is configured to receive the staple legs and initiate the leg formation process. The first end 6532 comprises a curved surface configured to distort the staple legs towards the second end 6534. The bottom surface 6536 comprises a curved or concave surface that is configured to fold the staple legs at least partially towards the staple cartridge. The second end 6534 comprises a curved surface configured to guide the staple legs out of the forming cup 6530a.

The second forming cup 6530b has a structure similar to that of the first forming cup 6530a and is configured to deform the second leg of the staple. As a result of the above, the first forming cup 6530a guides the first leg of the staple toward the second leg, and the second forming cup 6530b brings the second leg of the staple to the first leg. Guide towards. In various cases, the first forming cup 6530a and the second forming cup 6530b cooperate, for example, to transform the staples into a B-shaped configuration. However, the forming cup can be configured to transform the staples into any suitable configuration.

Primarily with reference to FIG. 96, each forming cup 6530 (6530a and 6530b) has a first lateral side wall 6537 and a second lateral wall extending between a first end 6532 and a second end 6534. A directional side wall 6539 is provided. In various cases, the first lateral side wall 6537 and the second lateral side wall 6539 are mirror images of each other with respect to the longitudinal axis 6533 extending through the center of the forming cup 6530. In other cases, the first lateral side wall 6537 and the second lateral side wall 6539 are not mirror images of each other. In any case, the sidewalls 6537, 6539 are sloped or inclined, for example, to guide the staple legs towards the center of the forming cup, i.e. towards the axis 6533.

Each forming cup 6530 comprises a groove or channel 6538 defined on its bottom surface 6536. The groove 6538 extends longitudinally between the first end 6532 and the second end 6534 of the forming cup 6530. The groove 6538 extends parallel to the central longitudinal axis 6535 of the forming cup 6530 and is offset laterally with respect to the central longitudinal axis 6335. The groove 6538 is wider than the staple leg deformed by the forming cup 6530. However, other embodiments are recalled in which the groove 6538 is narrower than the staple legs. In any case, the groove 6538 is configured to guide the staple legs along a predetermined path within the forming cup 6530.

In various cases, the groove in the forming cup 6530 is configured to twist the staple leg while the leg is being deformed. In at least one case, the staples before deformation are flat or at least substantially flat. In at least one such case, the legs and base of the staples are on the same plane aligned with the longitudinal axis 6535 when the staples are ejected from the staple cartridge. The first end 6532 and bottom 6536 are sloped to guide the legs towards the groove 6538 when the staple legs enter the forming cup 6530 and / or are configured in some other way. Has been done. Once the staple leg has entered the groove 6538, the groove 6538 will twist the staple leg out of the plane containing the base of the staple. As a result of the above, the unformed staple structure is flat, but the formed staple structure is not flat. However, other embodiments are recalled in which the staples have a non-flat configuration before and after deformation.

Grooves 6538 of the forming cup 6530 for a given set of forming cups 6530 are located on the same side of the longitudinal axis 6535 and are configured to twist both legs of the staple to the same side of the staple base. However, other embodiments are recalled in which the first staple leg is twisted to one side of the staple base and the second staple leg is twisted to the other side of the staple base. In at least one such embodiment, the first groove 6538 is located on the first side of the longitudinal axis 6535 configured to twist the first staple legs to the first side of the staple base. The second groove 6538 is located on the second side of the longitudinal axis 6535, which is configured to twist the second staple leg to the second side of the staple base.

The grooves 6538 of the forming cup 6530 for a given set of forming cups 6530 are on the same line, or at least substantially on the same line. However, other embodiments are recalled in which the grooves 6538 are located on the same side of the longitudinal axis 6535 but not on the same line with each other. In at least one such case, the grooves 6538 are parallel to each other, whereas in the other such cases, the grooves 6538 are not parallel to each other.

Primarily with reference to FIG. 96, the groove 6538 is deeper than the bottom surface 6536 of the forming cup 6530. However, other embodiments are recalled in which the groove and bottom of the forming cup have the same depth.

In various cases, the forming cup 6530 is configured in a longitudinal row if the anvil 6520 is part of a longitudinal end effector configured to apply a longitudinal row of staples. In at least one such case, the groove 6538 of the forming cup is configured such that all staples deployed by the end effector are bent out of the plane in the same direction. In another case, the groove 6538 bends the staple legs in the first direction in the first longitudinal row of the forming cup 6530 and the staple legs second or different in the second longitudinal row of the forming cup 6530. It is configured to bend in the direction. In certain cases, the groove 6538 is configured to bend the legs of the first staple in the staple row in the first direction and the second staple in the staple row in the second or opposite direction.

In various cases, the forming cup 6530 is configured in an annular row if the anvil 6520 is part of an annular end effector configured to apply an annular row of staples. In at least one such case, the grooves 6538 are arranged radially outward with respect to the central longitudinal axis 6535 of the forming cup 6530. In another case, the grooves 6538 are arranged radially inward with respect to the central longitudinal axis 6535 of the forming cup 6530. In certain cases, the grooves 6538 are arranged radially outward in the first annular row of the forming cup 6530 and radially inward in the second annular row of the forming cup 6530.

In addition to the above, the anvil forming pocket may have any suitable configuration. In at least one case, the forming pockets may comprise two forming cups that are mirror images of each other with respect to the central axis. Each forming cup has a triangular configuration with an outer end and an inner end. The inner ends of the pair of forming cups are adjacent to each other. The outer end of the forming cup is wider than the inner end and is configured to receive the staple legs. Each forming cup has a bottom or bathtub surface extending between the outer and inner ends, plus a longitudinal groove defined on the bottom and configured to guide the staple legs into the forming cup. , Are further provided. In at least one case, the longitudinal grooves are concentrated on the bottom surface of the forming cup.

97-99 disclose the end effector 7000 of the ring-shaped stapled assembly. The end effector 7000 includes a staple cartridge comprising a deck 7030 and a cartridge body 7040. The deck 7030 includes a tissue compression surface 7031 and a staple cavity 7032 defined on the tissue compression surface 7031. The staple cavity 7032 is configured in a first or inner annular row and a second or outer annular row. Each staple cavity 7032 in the inner row comprises a first staple 7070a retractably retracted, and each staple cavity 7032 in the outer row comprises a second staple 7070b retractably retracted.

The end effector 7000 further comprises a staple driver configured to push the staples out of the staple cartridge. For example, the staple cartridge is configured to eject a first annular row of staple drivers 7060a and a second row of staples 7070b from the cartridge body 7040, which are configured to eject the first row of staples 7070a. A second annular row of staple drivers 7060b, which is provided, is provided. The staple drivers 7060a and 7060b are located in the staple cavities 7032 defined on the deck 7030 and / or aligned with the staple cavities 7032. The staple drivers 7060a and 7060b are slidable in the staple cavity 7032 in order to eject the staples 7070a and 7070b from the staple cavity 7032, respectively.

The end effector 7000 further comprises an anvil 7020. The anvil 7020 comprises a tissue compression surface 7021 and a staple forming pocket 7022 defined on the compression surface 7021. The staple forming pockets 7022 are arranged in the first or inner annular row and the second or outer annular row. The staple forming pocket 7022 is aligned with the staple cavity 7032 so that when the staples 7070a, 7070b are ejected from the staple cavity 7032, the staples 7070a, 7070b come into contact with the staple forming pocket 7022.

The end effector 7000 further comprises a launching member 7056 configured to lift the staple drivers 7060a and 7060b into the staple cavity 7032 and eject the staples 7070a and 7070, respectively, from the staple cavity 7032. The launching member 7056 includes a base 7054 and a lamp 7055. The base 7054 is slidably disposed within a recess 7052 defined in the launch drive 7050. The lamp 7055 is slidably arranged in the slot 7041 defined in the cartridge body 7040. As will be described in more detail below, the lamp 7055 slides in slot 7041 and progressively contacts the staple drivers 7060a, 7060b to eject the staples 7070a, 7070b from the staple cavity 7032. It is configured to do.

In addition to the above, the launching member 7056 is movable throughout the firing stroke to eject the staples 7070a, 7070b from the staple cavity 7032. During the launch stroke, the launch member 7056 moves along a curved or arched path defined by slot 7041. Primarily with reference to FIG. 97, slot 7041 comprises a first end 7042 and a second end 7049 and a continuous path between them. The lamp 7055 of the firing member 7056 is placed at the first end 7042 at the beginning of the firing stroke and at the second end 7049 at the end of the firing stroke. The first end 7042 of slot 7041 is aligned with the inner row of staple cavities 7032, and the second end 7049 of slot 7041 is aligned with the outer row of staple cavities 7032. Slot 7041 further comprises a first circumferential portion 7043 extending around a central longitudinal axis 7090 extending through the end effector 7000. The first circumferential portion 7043 of slot 7041 aligns with the staple driver 7060a in the inner row of staple cavities 7032 and extends below the staple driver 7060a. When the firing member 7056 moves through the first circumferential portion 7043 of the slot 7041, the lamp 7055 of the firing member continuously engages with the staple driver 7060a to continuously fire the staple 7070a.

The first circumferential portion 7043 is defined by a radius of curvature that is constant or at least substantially constant about the longitudinal axis 7090. However, other embodiments are recalled in which the radius of curvature of the first circumferential portion 7043 is not constant. In at least one such case, the first circumferential portion 7043 comprises a spiral. In other words, in such cases, the first circumferential portion 7043 moves away from the longitudinal axis 7090 as it extends around the longitudinal axis 7090.

The second circumferential portion 7045 of slot 7041 aligns with the staple driver 7060b in the outer row of staple cavities 7032 and extends below the staple driver 7060b. The lamp 7055 of the firing member continuously engages with the staple driver 7060b and continuously fires the staple 7070b as the firing member 7056 moves through the second circumferential portion 7045 of the slot 7041. The second circumferential portion 7045 is defined by a radius of curvature that is constant or at least substantially constant about the longitudinal axis 7090. However, other embodiments are recalled in which the radius of curvature of the second circumferential portion 7045 is not constant. In at least one such case, the second circumferential portion 7045 comprises a spiral. In other words, in such cases, the second circumferential portion 7045 moves away from the longitudinal axis 7090 as it extends around the longitudinal axis 7090.

In addition to the above, slot 7041 includes a transition portion 7044 between the first circumferential portion 7043 and the second circumferential portion 7045. During the firing stroke, the lamp 7055 slides continuously through the first circumferential portion 7043, the transition portion 7044, and then the second circumferential portion 7045. The transition portion 7044 allows the launching member 7056 to shift between a first staple row with a first radius of curvature and a second staple row with a second radius of curvature. In certain embodiments, the transition portion 7044 between the first circumferential portion 7043 and the second circumferential portion 7045 may not be required. In at least one such case, the first circumferential portion 7043 can comprise a first helical configuration and the second circumferential portion 7045 is, for example, the end of the first helical configuration. Can comprise a second helical configuration aligned such that is aligned with the start of the second helical configuration.

The launch member 7056 is driven by a launch drive 7050 along its launch path. The launch drive 7050 is driven by, for example, a hand crank and / or an electric motor around the longitudinal axis 7090. The launch drive 7050 includes an internally defined drive recess 7052. The base 7054 of the launching member 7056 is located in the drive recess 7052. The drive recess 7052 is larger than the base 7054 of the launching member 7056 so that the base 7054 can move or float within the drive recess 7052. The drive recess 7052 is defined by a side wall that limits the movement of the base 7054 within the recess 7052. As the launch drive 7050 rotates about the longitudinal axis 7090, the side walls of the drive recess 7052 come into contact with the base 7054 and push the drive member 7056 through the slot 7051. As discussed above, slot 7051 has one or more changes in its radius of curvature, and when the launching member 7056 moves through such changes, the base 7054 of the launching member 7056 Can slide in the drive recess.

As mentioned above, the staples in the first or inner row of staples are continuously deployed, followed by the staples in the second or outer row of staples. Such embodiments may control the medial perimeter of the colon, for example, prior to staping outward. In another embodiment, the staples in the outer row of staples are continuously deployed, followed by the staples in the inner row of staples. Such embodiments may establish boundaries in colon tissue, for example, prior to inward stapling.

In various cases, in addition to the above, the first staple 7070a and the second staple 7070b have the same unformed height. In at least one such case, the first staple 7070a and the second staple 7070b are formed at the same preformed height. In other such cases, the first staple 7070a is formed at a first preformed height and the second staple 7070b is at a second preformed height that is different from the first preformed height. Can be formed. In at least one such case, the first preformed height of the inner row of staples is lower than the second preformed height of the outer row of staples. Such a configuration may provide, for example, a more gradual transition between stapled and non-stapled tissue. In other cases, the first preformed height of the inner row of staples is higher than the second preformed height of the outer row of staples. Such a configuration allows, for example, the innermost tissue of the stapled intestine to be more flexible.

In certain cases, in addition to the above, the first staple 7070a has a first unformed height and the second staple 7070b has a second unformed height that is different from the first unformed height. Has a staple. In at least one such case, the first staple 7070a and the second staple 7070b are formed at the same preformed height. In other such cases, the first staple 7070a is formed at a first preformed height and the second staple 7070b is at a second preformed height that is different from the first preformed height. It is formed.

The end effector 7000 has two circular rows of staples. However, the end effector can have any suitable number of annular staple rows. For example, an end effector may have three circular rows of staples. In at least one such case, the staples in the first annular row can have a first unformed staple height and the staples in the second annular row have a second unformed staple height. The third staple in the third annular row can have a third unformed staple height. Further, in at least one such case, the staples in the first annular row can have a first deformed staple height and the staples in the second annular row have a second deformed staple height. The third staple in the third annular row can have a third modified staple height.

The launch drive 7150 is shown in FIGS. 100-105. The launch drive 7150 includes a rotary drive shaft 7152 that is rotatable about a longitudinal axis. The launch drive 7150 further comprises a three-stage continuous driver assembly comprising a first or inner driver 7154a, a second or intermediate driver 7154b, and a third or outer driver 7154c. The drive shaft 7152 includes drive pins 7151 extending from the drive shaft 7152. Drive pins 7151 extend through drive slots in drivers 7154a, 7154b, and 7154c, respectively. For example, the first driver 7154a includes an internally defined first drive slot 7153a, the second driver 7154b comprises an internally defined second drive slot 7153b, and the third driver 7154c , A third drive slot 7153c defined inside is provided. Drive slots 7153a, 7153b, and 7153c do not have the same configuration. However, the drive slots 7153a, 7153b, and 7153c have an overlapping configuration in which the drive pins 7151 are aligned with each other or at least substantially aligned with each other. For example, drive pin 7151 is in the unfired position in FIG. 100, and drive slots 7153a, 7153b, and 7153c are aligned with drive pin 7151.

In addition to the above, FIG. 100 illustrates drivers 7154a, 7154b, and 7154c in unlaunched positions. From here, with reference to FIG. 101, as the drive shaft 7152 rotates over the first portion of its firing stroke, the drive pin 7151 is rotated along a circumferential path. Here, the drive pin 7151 engages with the side wall of the drive slot 7153a to push the first driver 7154a distally or drive the cam (cam). In particular, the drive pin 7151 does not drive the drivers 7154b and 7154c distally during the first portion of the firing stroke. As can be seen from FIG. 100, the drive slots 7153b and 7153c are aligned with the circumferential path of the drive pin 7151 throughout the first portion of the firing stroke. The first driver 7154a is configured to fire a first annular row of staples when the first driver 7154a is moved distally.

From here, with reference to FIG. 102, as the drive shaft 7152 rotates over the second portion of its firing stroke, the drive pin 7151 is rotated along the circumferential path. Here, the drive pin 7151 engages with the side wall of the drive slot 7153b to push the second driver 7154b distally or drive the cam. In particular, the drive pin 7151 does not drive the driver 7154c distally during the second portion of the firing stroke. Similar to the above, the drive slots 7153a and 7153c are aligned with the circumferential path of the drive pin 7151 throughout the second portion of the firing stroke. The second driver 7154b is configured to fire a second annular row of staples when the second driver 7154b is moved distally.

From here, with reference to FIG. 103, as the drive shaft 7152 rotates over the third portion of its firing stroke, the drive pin 7151 is rotated along the circumferential path. Here, the drive pin 7151 engages with the side wall of the drive slot 7153c to push the third driver 7154c distally or drive the cam. Similar to the above, the drive slots 7153a and 7153b are aligned with the circumferential path of the drive pin 7151 throughout the third portion of the firing stroke. The third driver 7154c is configured to deploy a cutting member when the third driver 7154c is moved distally. However, in certain embodiments, the third driver 7154c may deploy, for example, a third row of staples.

As a result of the above, the first staple firing stage, the second staple firing stage, and the tissue cutting stage do not overlap. They are done at consecutive timings. Therefore, the force required to deform the staples and cut the tissue is spread throughout the firing stroke. In addition, the launch drive 7150 cannot cut tissue until it is stapled. Various alternative embodiments are recalled in which there is some overlap between the first staple firing step, the second staple firing step, and / or the tissue cutting step. In at least one such embodiment, the configuration of drive slots 7153a, 7153b, and 7153c partially overlaps in the movement of the first driver 7154a and the second driver 7154b, and / or the second driver 7154b. And can be adapted so that there is a partial overlap in the movement of the third driver 7154c.

Primarily with reference to FIGS. 103 and 104, the drivers 7154a, 7154b, and 7154c include a collaborative mechanism that prevents, or at least prevents, the driver 7154a, the driver 7154b, and the driver 7154c from rotating relative to each other. For example, the first driver 7154a includes longitudinal keys 7155a located in the longitudinal slots 7156b defined in the second driver 7154b. The key 7155a and slot 7156b prevent the first driver 7154a from sliding longitudinally with respect to the second driver 7154b, but hindering rotational movement between the first driver 7154a and the second driver 7154b. It is configured to enable it. Similarly, the second driver 7154b comprises a longitudinal key 7155b located in the longitudinal slot 7156c defined in the third driver 7154c. The key 7155b and slot 7156c prevent the second driver 7154b from sliding longitudinally with respect to the third driver 7154c, but prevent rotational movement between the second driver 7154b and the third driver 7154c. It is configured to enable it.

The drive shaft 7152 rotates in opposite directions in order to retract the driver 7154a, driver 7154b, and driver 7154c. In such a case, in order to return the third driver 7154c, the second driver 7154b, and the first driver 7154a to their unlaunched positions (FIG. 100), the drive shaft 7152 is driven by the side wall of the drive slot 7153c. It continuously engages the side wall of slot 7153b and then the side wall of drive slot 7153a.

FIG. 106 illustrates the launch drive 7250. The launch drive 7250 operates in a manner similar to that of the launch drive 7150. The launch drive 7250 includes a drive shaft 7252 that is rotatable about a longitudinal axis. The drive shaft 7252 comprises a cam surface or lamp 7256 that is rotated through multiple stages of the firing stroke. The launch drive 7250 further comprises a first driver 7254a, a second driver 7254b, and a third driver 7254c that are engaged by the cam 7256 of the drive shaft 7252 as the launch drive 7250 rotates. In the first stage of the firing stroke, the cam 7256 engages with the cam surface 7255a defined on the first driver 7254a to drive the first driver 7254a distally. In the second stage of the firing stroke, the cam 7256 engages with the cam surface 7255b defined on the second driver 7254b, driving the second driver 7254b distally and in the third stage of the firing stroke. In, the cam 7256 engages with the cam surface 7255c defined on the third driver 7254c to drive the third driver 7254c distally.

The first cam surface 7255a is shorter than the second cam surface 7255b, and as a result, the first driver 7254a has a shorter firing stroke than the second driver 7254b. Similarly, the second cam surface 7255b is shorter than the third cam surface 7255c, and as a result, the second driver 7254b has a shorter firing stroke than the third driver 7254c. Such a configuration may be useful, for example, to form different rows of staples at different preformed heights. In other embodiments, the driver 7254a, driver 7254b, and driver 7254c may have any suitable firing stroke. In at least one embodiment, the driver 7254a, driver 7254b, and driver 7254c have, for example, the same firing stroke. Such a configuration may be useful, for example, to form different rows of staples at the same preformed height.

FIG. 107 is a partial perspective view of a staple cartridge 4410 for use with a staple surgical stapler for cricoid surgery, according to at least one embodiment. Various cricoid surgical staple fasteners are known. For example, various US patent applications filed on August 26, 2015, 14 / 863,110, the title of the invention, "SURGICAL STAPLING CONFIGURATIONS FOR CURVED AND CIRCULAR STAPLING INSTRUMENTS," which are incorporated by reference in their entirety. The stapler configuration for cricoid surgery is disclosed. Also in US Patent Application No. 14 / 498,070 filed September 26, 2014, the title of the invention "CIRCULAR FASTENEER CARTRIDGES FOR APPLYING RADIALLY EXPANDING FASTNER LINES", the entire disclosure of which is incorporated herein by reference. , Various cricoid surgical stapler configurations are disclosed. As discussed in those references, cricoid surgical staplers typically include a frame assembly with attachments configured to operably connect the anvil to the cricoid surgical stapler.

Generally, the anvil comprises an anvil head that supports one or more annular lines of staple forming pockets. The anvil stem or trocar portion is configured to be attached to the anvil head and detachably connected to the anvil attachment portion of the ring-shaped staple fastener. Various cricoid surgical staple fasteners are selected to move the anvil toward and away from the surgical staple cartridge so that the target tissue may be clamped between the anvil and the deck of the surgical staple cartridge. Provide means for moving the object. The surgical staple cartridge contains a plurality of surgical staples configured in one or more annular arrays corresponding to the configuration of staple forming pockets provided in the anvil so as to be removable. The staples are retractably housed in the corresponding staple cavities formed in the staple cartridges and supported by the corresponding parts of the selectively movable pusher assembly, which are operably received in the ring stapler. .. The ring stapler further comprises an annular knife or cutting member configured to make an incision in the tissue clamped between the anvil and the staple cartridge.

With reference to FIG. 107 again, the staple cartridge 4410 comprises a cartridge body 4411 defining an annular cartridge deck surface 4412. The cartridge body 4411 includes an inner annular row 4420 of the spaced inner staple cavities 4422 and an outer annular row 4440 of the spaced outer staple cavities 4442. As can be seen from FIG. 107, the inner staple cavities 4422 are staggered with respect to the outer spaced staple cavities 4442. The medial surgical staples 4430 are supported within each medial staple cavity 4422 and the lateral surgical staples 4450 are supported within each lateral staple cavity 4442. The outer staples 4450 in the outer annular row 4440 may have different characteristics than the inner staples 4430 in the inner annular row 4420. For example, as illustrated in the embodiment of FIG. 108, the outer staple 4450 has an unformed "gull wing" configuration. In particular, each outer staple 4450 comprises a pair of legs 4454, 4464 extending from the staple crown 4452. Each leg 4454, 4464 comprises a vertical portion 4456, 4466 extending from the crown 4452, respectively. In one embodiment, the vertical portions 4456, 4466 may be parallel to each other. However, in the illustrated configuration, the vertical portions 4456, 4466 are not parallel to each other. For example, the angle _{A 1} between the crown 4452 and the vertical portion 4456,4466 in the illustrated arrangement, more than 90 degrees. See FIG. 108. Further details regarding the staple configuration are incorporated herein by reference in its entirety, U.S. Patent Application No. 14 / 319,008, filed June 30, 2014, entitled "FASTENEER CARTRIDGE". COMPRISING NON-UNFORM FASTENERS ”, US Patent Application Publication No. 2015/0297232. However, the other vertical portions 4456, 4466 may be configured at other angles with respect to the crown 4452. One advantage of having vertical leg portions 4456, 4466 oriented at an angle greater than 90 degrees with respect to the crown 4452 is that such a configuration assists in the temporary retention of staples within their corresponding staple cavities. It is possible.

At least one leg 4454, 4464 has an inwardly extending end. In the embodiment shown in FIG. 108, for example, each leg 4454, 4464 comprises an inwardly extending leg. In the illustrated configuration, the leg 4458 extends inward from the vertical leg 4456 and the leg 4468 extends inward from the vertical leg 4466. As can be seen from FIG. 108, the leg 4458 is shorter than the leg 4468. _{In other words, the distance HA} between the staple crown 4452 and the point where the leg 4458 bends inward from the vertical leg 4456 is such that the staple crown 4452 and the leg 4468 bend inward from the vertical leg 4466. The distance between points is greater than _HC. Therefore, in at least one embodiment, the distance H _B is shorter than the length H _{D. The angle A 2 at} which the leg 4458 is bent with respect to the vertical leg 4556 _{may be equal to the angle A 3 at} which the leg 4468 is bent with respect to the vertical leg 4466, or the angles A ₂ and A ₃ May be different from each other. Further details regarding the staple configuration are incorporated herein by reference in U.S. Patent Application No. 14 / 319,008, filed June 30, 2014, entitled "FASTENEER CARTRIDGE COMPRISING NON-UNIFORM FASTENERS". , US Patent Application Publication No. 2015/0297232.

In at least one embodiment, each medial surgical staple 4430 may have the configuration illustrated in FIG. 108. As can be seen from FIG. 108, the medial surgical staple 4430 has a crown 4432 and two vertical legs 4434, 4436 extending from it. Vertical leg 4434,4436 may extend from the crown 4432 relatively vertically, or they may extend at an angle _{A 4} which may exceed 90 degrees. Such a configuration may assist in the temporary holding of the staple 4430 within its corresponding staple cavity 4422. However, the vertical legs 4434, 4436 may extend from the crown 4432 at different angles. In some embodiments, the angle A ₄ are equal to each other. In other embodiments, the angle A ₄ are different from each other. In the illustrated embodiment, the inner staples 4430 and the outer staples 4450 each have the same unformed height UFH. The medial and lateral staples 4430, 4450 are formed from conventional surgical staple wires. In at least one embodiment, the diameter of the staple wire used to form the outer staple 4450 is greater than the diameter of the staple wire used to form the inner staple 4430. In other embodiments, the inner and outer staples may have the same diameter or may be formed from wires of other diameters. In some configurations, the inner and outer staples may be formed from the same type of staple wire. Therefore, in such a configuration, the wire diameters of the inner and outer staples would be the same. However, in yet another embodiment, the inner and outer staples may have the same unformed shape / configuration and may be formed from two different staple wires with different wire diameters. Also, in at least one configuration, the crown width CW _O of each outer staple 4450 is longer than _{the crown width CW I} of each inner staple 4430. Further details regarding the staple configuration are incorporated herein by reference in U.S. Patent Application No. 14 / 319,008, filed June 30, 2014, entitled "FASTENEER CARTRIDGE COMPRISING NON-UNIFORM FASTENERS". , US Patent Application Publication No. 2015/0297232.

Returning to FIG. 107, the staple cartridge 4410 includes an outer rim 4414 extending over the deck surface 4412. During surgery, the clinician may adjust the position of the anvil with respect to the cartridge of the annular stapler. In at least one such embodiment, the staple cartridge 4410 further comprises deck mechanisms 4416 and 4418 extending from the deck surface 4412. As can be seen in FIG. 107, a series of inner deck mechanisms 4416 are provided between the inner row 4420 of the staple cavity 4422 and the centrally arranged knife opening 4413 through which the knife or cutting member will pass during the firing process. .. As shown in FIGS. 107, 109, and 110, the deck mechanism 4416 may be formed and located with respect to the inner staple cavity and opening 4413. For example, each inner deck mechanism 4416 may have a flat wall portion 4415 having the same extent as the wall of the knife opening 4413 and a conical or inclined body portion 4417 adjacent to a row of inner staple cavities 4422. See FIGS. 109 and 110. In the embodiment shown in FIG. 107, the deck mechanism 4416 is oriented in the gap between two adjacent inner staple cavities 4422 and is staggered between two pairs of staple cavities 4422 as shown. There is. The cavity extension mechanism or deck mechanism in this system can serve to reduce the pressure commonly generated in flat deck cartridges. This disclosed configuration can also help reduce tissue migration and slippage. Outer diameter retention mechanisms may be larger and more numerous, as tissue slip is generally undesirable. The inner diameter mechanism can serve to increase tissue tension / shear forces as the blade passes closer to the inner inner diameter, which can improve cutting by the system. However, the deck mechanism 4416 may have different shapes and configurations and may be located at different positions on the deck surface 4412.

As can be seen from FIGS. 107, 109, and 110, all other outer staple cavities 4442 include an outer deck mechanism 4418 associated with their respective ends. The outer deck mechanism 4418 extends onto the deck surface 4412 and guides the outer staples 4450 towards the anvil as the staples 4450 are ejected from the staple cartridge 4410. In such an embodiment, the outer staple 4450 does not have to extend over the outer deck mechanism 4418 until the staples are moved towards the anvil by the launching member. Primarily with reference to FIG. 107, in at least one embodiment, the outer deck mechanism 4418 does not extend around the entire corresponding outer staple cavity 4442. The first outer deck mechanism 4418 is placed adjacent to the first end of the corresponding outer cavity 4442 and the second outer deck mechanism 4418 is placed adjacent to the second end of the outer cavity 4442. Will be done. As can be seen in FIG. 107, the outer deck mechanism 4418 is associated with every other outer staple cavity 4442. Such a configuration can serve to reduce overall pressure and minimize tissue stretch and migration. However, in other embodiments, the first and second outer deck mechanisms 4418 may be associated with all outer staple cavities 4442. In yet another embodiment, the outer deck mechanism may extend around the entire perimeter of the corresponding outer cavity. As can be seen from FIG. 109, the inner deck mechanism 4416 is shorter than the outer deck mechanism 4418. In other words, each inner deck mechanism projects onto the deck surface 4412 at a distance shorter than the distance at which each outer deck mechanism 4418 projects onto the deck surface 4412. Each outer deck mechanism may project onto the deck surface 4412 at the same distance as the outer rim 4414 projects onto the deck surface 4412. In addition, as can be seen in FIG. 109, each lateral deck mechanism 4418 can help prevent tissue from snagging on the deck mechanism during insertion of the stapler head through the patient's colon and rectum. Has a generally conical or tapered outer profile.

The deck mechanism configuration may provide one or more advantages. For example, an upright outer rim can help prevent tissue from sliding across the cartridge deck. The upright rim may also have a repeating pattern of highs and lows rather than one continuous lip formation. The medial upright mechanism can also help hold the tissue adjacent to the blade, resulting in improved cutting. The inner deck mechanism can be between all cavities or in alternating configurations, and the deck mechanism may include one continuous upright lip. It may be desirable to balance the number of deck mechanisms in order to minimize the number of high force / compression zones while achieving the desired amount of tissue fixation. The cavity concentration mechanism may serve the additional purpose of minimizing tissue flow in the area where the staple legs project. Such a configuration also facilitates the desired staple formation when the staple leg is ejected and the transition to a receptive anvil pocket which may consist of a corresponding forming pocket. Such a local pocket mechanism increases the low compression zone, but the presence of staples on the cartridge facilitates leg support from the cartridge. This configuration minimizes the distance that the staples should "jump" before touching the anvil pocket. Tissue flow tends to increase the radial outward movement from the center of the cartridge. With reference to FIG. 118, the improved upright lateral row extensions have a tendency to stage the tissue when inserted through the colon because they are tubes.

FIG. 109 and FIG. 110 illustrate the use of surgical staple cartridge 4410 associated with anvil 4480. The anvil 4480 comprises a staple forming insert or portion 4484 and an anvil head portion 4482 that operably supports the knife washer 4490. The knife washer 4490 is supported in a face-to-face relationship with the knife 4492 supported by the staple head. In the illustrated embodiment, the staple forming insert 4484 is formed of, for example, steel, stainless steel, etc. and includes an inner row of inner staple forming pockets 4486 and an outer row of outer staple forming pockets 4488. Each inner staple forming pocket 4486 corresponds to one of the inner staple cavities 4422 and each outer staple forming pocket 4488 corresponds to one of the outer staple cavities 4442. In the illustrated configuration, when the anvil 4480 moves to its firing position relative to the cartridge deck surface 4412, the inner staple forming pocket 4486 is closer to the cartridge deck surface 4412 than the outer staple forming pocket 4488. _{In other words, the first gap g 1} between the first staple forming portion 4485 and the cartridge deck surface 4412 or the first staple forming distance is between the second staple forming portion 4487 and the cartridge deck surface 4412. Second gap g ₂ or shorter than the second staple formation distance.

As further seen in FIGS. 109 and 110, the inner staples 4430 are each supported within its corresponding inner staple cavity 4422 on the corresponding inner driver portion 4502 of the pusher assembly 4500, and the outer staples 4450 are respectively corresponding outer. Supported within its corresponding outer staple cavity 4442 on the driver portion 4504. Advancement of the pusher assembly 4500 to the anvil 4480 will drive the inner and outer staples 4430, 4450 into forming contact with their respective corresponding staple forming pockets 4486, 4488, as shown in FIG. Let's go. In addition, the knife 4492 advances distally through the tissue clamped between the anvil 4480 and the deck surface 4412 and through the brittle bottom 4491 of the knife washer 4490. Such a configuration is higher than the preformed height FH _I inside staple 4430, functions to provide the outer staple 4450 comprising a preformed height FH _O. In other words, the outer row 4440 of the outer staple 4450 is molded into a larger "B" shape, with a larger capture volume and / or higher staple to relieve high tissue compression near the outer row 4440 of the staple. Provides molding height. Larger B shapes can also improve blood flow towards the medial row. In various cases, the outer row 4440 of the outer staple 4450 comprises greater resistance to deployment by utilizing the larger staple crown, staple leg width, and / or staple leg thickness.

The amount of staples used in each row of staples can vary. In one embodiment, for example, there are more outer staples 4450 in which the inner staples 4430 are present. Another embodiment utilizes more inner staples 4430 than outer staples 4450. In various cases, the wire diameter of the outer staple 4450 is larger than the wire diameter of the inner staple 4430. The inner and outer staples 4430, 4450 may have the same unformed height UFH. _{The crown width CW O} in the outer row 4440 of the outer staple 4450 is wider than _{the crown width CW I in} the inner row 4420 of the inner staple 4430. The gull-wing configuration of the outer staples 4450 utilizes bends located at different distances from their respective crowns. The use of a gradual anvil configuration with a flat (non-step) cartridge deck surface 4412 with uniform screwdriver or pusher movement results in staples with different preformed heights.

FIG. 111 illustrates another staple cartridge embodiment 4610. As can be seen from FIG. 111, the staple cartridge 4610 comprises a cartridge deck 4612 comprising an inner annular row 4620 of the spaced inner staple cavities 4622 and an outer annular row 4640 of the spaced outer staple cavities 4642. As can be seen from FIG. 111, the inner staple cavities 4622 are staggered with respect to the spaced outer staple cavities 4642. The medial surgical staples 4630 are supported within each medial staple cavity 4622 and the lateral surgical staples 4650 are supported within each lateral staple cavity 4642. In addition, the outer rim 4614 extends over the deck surface 4612. In various embodiments, in addition to the above, the staples 4630, 4650 do not project onto the deck surface 4612 until the staples are moved towards the anvil by the launching member. Such embodiments may often utilize smaller staples for the depth of each staple cavity in which the staples are stored. In another embodiment, the staple legs project above the deck surface 4612 when the staples are in their unlaunched position. In at least one such embodiment, the staple cartridge 4610 further comprises deck mechanisms 4616 and 4618 extending from the deck surface 4612.

As can be seen from FIG. 111, all other inner staple cavities 4622 include an inner deck mechanism 4616 associated with its respective end. The inner deck mechanism 4616 extends over the deck surface 4612 and guides the corresponding inner staple 4630 towards the anvil as the corresponding inner staple 4630 is ejected from the staple cartridge 4610. In such an embodiment, the inner staple 4630 may not extend over the inner deck mechanism 4616 until the staples are moved towards the anvil by the launching member. In the illustrated example, the inner deck mechanism 4616 does not extend around the entire corresponding inner staple cavity 4622. The first inner deck mechanism 4616 is placed adjacent to the first end of the corresponding inner cavity 4622 and the second inner deck mechanism 4616 is placed adjacent to the second end of the inner cavity 4622. Will be done. However, in other embodiments, the inner deck mechanism 4416 may be associated with all inner staple cavities 4622. In yet another embodiment, the inner deck mechanism may extend around the entire perimeter of the corresponding inner staple cavity. Lower pressure may be provided to the tissue gap region by utilizing deck mechanisms with different heights in a concentrated pattern associated with all other cavities, but they are as much as possible. And balanced with the demand to guide long staple legs. In other words, such a configuration can minimize the amount of tissue flow that reduces the total amount of pressure exerted on the target tissue.

Further referring to FIG. 111, each outer staple cavity 4642 includes an outer deck mechanism 4618 associated with its respective end. The outer deck mechanism 4618 extends over the deck surface 4612 and guides the outer staples 4650 towards the anvil when the staples 4650 are ejected from the staple cartridge 4610. In such an embodiment, the outer staples 4650 may not project onto the outer deck mechanism 4618 until the outer staples are moved towards the anvil by the launching member. As can be seen from FIG. 111, in the illustrated example, the outer deck mechanism 4618 does not extend around the entire corresponding outer staple cavity 4642. The first outer deck mechanism 4618 is placed adjacent to the first end of the corresponding outer cavity 4642 and the second outer deck mechanism 4618 is placed adjacent to the second end of the outer cavity 4642. Will be done. As can be seen from FIG. 111, the outer deck mechanism 4618 is associated with all outer staple cavities 4642. However, in other embodiments, the first and second outer deck mechanisms 4618 may be associated with every other outer staple cavity 4642. In yet another embodiment, the outer deck mechanism may extend around the entire perimeter of the corresponding outer cavity. As can be seen from FIGS. 112 and 113, the inner deck mechanism 4616 and the outer deck mechanism 4618 extend the same distance on the deck surface 4612. In other words, they have the same height. In addition, as can be seen from FIGS. 112 and 113, each inner deck mechanism 4416 and each outer deck mechanism 4618 allows tissue to ride onto the deck mechanism during insertion of the stapler head through the patient's colon and rectum. Has a generally conical or tapered outer profile that can help prevent.

112 and 113 illustrate the use of surgical staple cartridge 4610 associated with anvil 4680. The anvil 4680 comprises a staple forming insert or portion 4648 and an anvil head portion 4682 that operably supports the knife washer 4690. The knife washer 4690 is supported in a face-to-face relationship with the knife 4692 supported by the staple head. In the illustrated embodiment, the staple forming insert 4864 is formed of, for example, steel, stainless steel, etc. and includes an inner row of inner staple forming pockets 4686 and an outer row of outer staple forming pockets 4688. Each inner staple forming pocket 4686 corresponds to one of the inner staple cavities 4622 and each outer staple forming pocket 4688 corresponds to one of the outer staple cavities 4642. In the illustrated configuration, the inner staple forming pocket 4686 is located at the _{same distance g 1 from the deck surface 4612 as the outer staple forming pocket 4688.}

As further seen in FIGS. 112 and 113, the inner staple 4630 is supported within the corresponding inner staple cavity 4622 on the corresponding inner driver portion 4702 of the pusher assembly 4700. The outer staples 4650 are supported within the corresponding outer staple cavities 4642 on the corresponding outer driver portions 4704. Advancement of the pusher assembly 4700 to the anvil 4680 drives the inner and outer staples 4630, 4650 to form contact with their respective corresponding staple forming pockets 4686, 4688, as shown in FIG. Let's go. In addition, the knife 4692 advances distally through the tissue clamped between the anvil 4680 and the deck surface 4612 and through the brittle bottom 469 of the knife washer 4690. In the examples illustrated in FIGS. 112 and 113, each inner staple 4630 is formed from a first staple wire having a _{first wire diameter D 1 and has a first unformed height L 1} . For example, the first wire diameter D ₁ is about 0.02 cm to 0.038 cm (0.0079 "to 0.015") (increased widths are typically 0.023 cm, 0.024 cm and 0.0037 cm (0). It may be .089 ", 0.0094" and 0.00145 ")), and the first _{unformed height L 1} is about 0.503 cm to 0.635 cm (0.198" to 0. 250 ″). Each outer staple 4650 is formed from a second staple wire having a _{second wire diameter D 2 and has a second unformed height L 2.} FIGS. 112 and 113. In the embodiment shown in, D ₁ <D ₂ and L ₁ <L _2. However, as can be seen from FIG. 113, the inner and outer staples 4630, 4650 have the same preformed height FH. The thicker wire staples on the outside tend to have higher tear and rupture strength, whereas the inner row of staples of smaller diameter tends to provide better retention for hemostasis. In other words, a tighter inner staple row may provide better retention for hemostasis, while a weaker compressed staple outer row may promote better healing and blood flow. Therefore, staples with longer legs ensure more B-bending, even if formed at the same height as staples with shorter legs, which may result in stronger staples with longer legs. It may be formed adequately to hold it under high load conditions. The amount of staples used in each row of staples can vary. In one embodiment, for example, the inner row 4620. It has as many inner staples 4630 as the outer rows 4640 of the outer staples 4650 have. In various configurations, the crown width of the staples 4650 is wider than the crown width of the inner staples 4630. In other embodiments, the staples 4630, The 4650 may have the same crown width. In other configurations, the staples 4630, 4650 may be of the galwing design described above. For example, at least one leg of the staple is bent inward. It may be provided with an end, or both legs may be provided with an end that is bent inward toward each other. Such staples may be an inner or outer ring or an inner and outer ring. It may be used in both.

FIG. 114 illustrates another annular staple cartridge embodiment 4810 comprising a cartridge deck 4812 with three annular rows 4820, 4840, 4860 of spaced staple cavities. The inner or first row 4820 accommodates a first plurality of inner or first staple cavities 4822, each configured at a first angle. Each inner staple cavity 4822 internally operably supports the corresponding inner or first staple 4830. The inner cavity 4822 orients the first staple 4830 at the same uniform angle with respect to the tangential direction. In the illustrated example, each inner staple 4830 is formed from a first staple wire having a _{first staple diameter D1.} In one example, the first staple wire diameter D ₁ may be about 0.0079'' to 0.015'' (about 0.020 cm to 0.038 cm) (the amount of increase is usually 0.0089'' (. 0.023 cm), 0.0094'' (0.024), and 0.00145'' (0.00368)). With reference to FIG. 117, each inner staple 4830 comprises a first crown 4832 and two first legs 4834. The first crown has a first crown width C ₁ and each first leg 4834 has an unformed leg length L ₁ . In one example, the first crown width C ₁ may be about 0.25 cm to 0.76 cm (0.100 "to 0.300") and the first unformed leg length L ₁ is about 0. It may be 503 cm to 0.64 cm (0.198 "to 0.250"). Each of the first legs 4834 may be configured at _{an angle A 1} with respect to the first staple crown 4832. The angle A ₁ may be approximately 90 °, or the first leg 4834 extends slightly outward to assist in holding the first staple 4830 in its corresponding first staple cavity 4822. As such, it may be slightly larger than 90 °.

Switching to FIGS. 115 and 116, the staple cartridge 4810 is intended to be used in combination with the anvil 4900, which is staggered or staggered in the first staple forming pocket 4904. Includes two inner or first rows 4902 consisting of an angled first pair 4903. Each first pair 4903 of the first staple forming pockets 4904 corresponds to one first staple 4830. One first staple forming pocket 4904 corresponds to one first staple leg 4834 and the other first first staple forming pocket 4904 to 4903 corresponds to the other first staple leg 4834. do. Such a configuration is such that one first leg 4834 is formed on one side of the first crown 4832 and the other first leg 4834 is formed on the other side of the first crown 4832. The first staple leg 4834 of the first staple 4830 serves to establish a preformed staple configuration formed outside the surface of the particular first staple 4830 having the first crown 4832. This "three-dimensional" preformed staple configuration is shown in FIG. 115 with respect to some of the first staple forming pockets 4904.

As can be seen particularly from FIG. 116, the cartridge deck 4812 is of a "gradual" configuration. The cartridge deck 4812 comprises an inner or first cartridge deck portion 4814 that corresponds to the inner or inner of the first staple cavity 4822 or the first annular row 4820. As can be further seen from FIG. 116, when the anvil 4900 is moved to the closed or clamped position, the portion of the anvil 4900 accommodating the first staple forming pocket 4904 is located at a first gap distance from the deck portion 4814. g ₁ away.

Again with reference to FIGS. 114, 116, and 117, the middle or second row 4840 accommodates a second plurality of middle or second staple cavities 4842 configured at a second angle, respectively. Each intermediate staple cavity 4842 internally operably supports a corresponding intermediate or second staple 4850. The intermediate cavity 4842 orients the intermediate or second staple 4850 at the same uniform second angle with respect to the tangential direction. However, the second angle is different from the first angle. In other words, when the first and second staples are supported by their respective first and second cavities, the axes of the first crown of each first staple 4830 are adjacent when stretched. It will eventually intersect the extended axis of the second crown of the second staple 4850. As can be seen from FIGS. 116 and 117, each second or intermediate staple 4850 comprises a second staple crown or base 4852 and two second legs 4854. The staple base 4852 may have a somewhat rectangular cross-sectional shape or may be formed from a flat sheet of material. The second staple leg 4854 may have, for example, a circular cross-sectional profile. The second or intermediate staples are, for example, U.S. Patent Application No. 14 / 863,110, filed August 26, 2015, the title of the invention "SURGICAL STAPLING CONFIGURATIONS FOR," which is incorporated herein by reference in its entirety. It may have various staple configurations disclosed in "CURVED AND CIRCULAR STAPLING INSTRUMENTS". By having a circular staple leg extending from a staple base having a rectangular cross-sectional profile, it is possible to provide a staple base and staple legs that do not include a preferred bending plane. The second staple 4850 includes a bend 4856 in which the staple legs 4854 extend from the staple base 4852. The bend 4856 may have a substantially square cross-sectional profile. The square and rectangular profiles of the bend 4856 and staple base 4852, respectively, provide a secure connection and skeleton to the circular staple legs 4854. The circular staple leg 4854 eliminates the preferred bending plane that a staple leg having a cross section of any shape or non-uniform shape with squares, rectangles, or vertices may have. Each of the second staple legs 4854 has a second diameter D ₂ . In at least one embodiment, D ₂ > D ₁ . The second base or crown 4852 has a second crown width C ₂ . In some configurations, C ₂ > C ₁ . The second leg 4854 may each be configured at _{an angle A 2} with respect to the second base or crown 4852. The angle A ₂ may be approximately 90 °, or the second leg 4854 is slightly extended outward to assist in holding the second staple 4850 in its corresponding second staple cavity 4842. As such, it may be slightly larger than 90 °.

Switching to FIGS. 115 and 116, the anvil 4900 consists of two intermediate or second rows of second staple forming pockets 4914, consisting of a second pair of staggered or angled 4913s. 4912 is further provided. Each second pair 4913 of the second staple forming pocket 4914 corresponds to one second staple 4850. One second staple forming pocket 4914 corresponds to one second staple leg 4854 and the other second staple forming pocket 4914 vs. 4913 corresponds to the other second staple leg 4854. Such a configuration serves to establish a preformed staple configuration in which the second leg 4854 is formed outside the plane having the second base 4852 of the particular second staple 4850. This "three-dimensional" preformed staple configuration is shown in FIG. 115 with respect to some of the second staple forming pockets 4914.

As will be particularly apparent from FIG. 116, the cartridge deck 4812 further comprises a second cartridge deck portion 4816 that corresponds to an intermediate or second annular row 4840 of the intermediate or second staple cavity 4842. As further seen in FIG. 116, the anvil 4900 is moved to the closed position or the clamping position, the portion of the anvil 4900 includes a second staple forming pockets 4914 from deck section 4816, leaving the second gap distance _{g 2} .. In the illustrated example, g ₂ > g ₁ .

Again with reference to FIGS. 114, 116, and 117, the outer or third row 4860 is such that each outer or third staple cavity 4862 extends at a distance between two adjacent second cavities 4842. , Includes a third plurality of outer or third staple cavities 4862 having a size relative to the second staple cavity 4842. Each outer staple cavity 4862 internally operably supports a corresponding outer or third staple 4870. The outer cavity 4862 directs the outer or third staple 4870 in contact with the circumferential direction. As can be seen from FIGS. 116 and 117, each third or outer staple 4870 comprises a third staple crown or base 4872 and two third legs 4874. The staple base 4872 may have a somewhat rectangular cross-sectional shape or may be formed from a flat sheet of material. The third staple leg 4874 may have, for example, a circular cross-sectional profile. The third or outer staple 4870 is, for example, U.S. Patent Application No. 14 / 863,110, filed August 26, 2015, the title of the invention "SURGICAL STAPLING CONFIGURATIONS," which is incorporated herein by reference in its entirety. It may have various staple configurations disclosed in "FOR CURVED AND CIRCULAR STAPLING INSTRUMENTS". By having a circular staple leg extending from a staple base having a rectangular cross-sectional profile, it is possible to provide a staple base and staple legs that do not include a preferred bending plane. The third staple 4870 includes a bend 4876 in which the staple legs 4874 extend from the staple base 4872. The bend 4876 may have a substantially square cross-sectional profile. The square and rectangular profiles of the bend 4876 and staple base 4872, respectively, provide a secure connection and skeleton to the circular staple legs 4874. The circular staple leg 4874 eliminates the preferred flex plane that a staple leg with a cross section of any shape or non-uniform shape with squares, rectangles, or vertices can have. In at least one embodiment, D ₃ > D ₂ . Third base or the crown 4872, a third crown width _{C 3,} each of the third leg 4874 has a third unformed leg _{L 3.} In some configurations, C ₃ > C ₂ and L ₃ > L ₂ . Each third leg 4874, to the third base or the crown 4872 may be configured at an angle _{A 3.} Angle A ₃ is approximately 90 ° but may, or to assist in holding the third staple 4870 to a third staple cavities 4862 its corresponding third leg 4874 is spread slightly outward As such, it may be slightly larger than 90 °.

Switching to FIGS. 115 and 116, the anvil 4900 further comprises an outer row 4916 of the outer or third staple forming pocket 4918. Each third staple forming pocket 4918 corresponds to one third staple 4870. As will be particularly apparent from FIG. 116, the cartridge deck 4812 further comprises a third cartridge deck portion 4818 corresponding to the outer or third row 4860 of the outer or third staple cavity 4862. As further seen in FIG. 116, the anvil 4900 is moved to the closed position or the clamping position, the portion of the anvil 4900 includes a third staple forming pockets 4918 from deck section 4818, leaving a third gap distance _{g 3} .. In the illustrated example, g ₃ > g ₂ . As further seen from FIG. 116, in at least one embodiment, the tissue thickness compensating element 4920 is utilized in combination with each outer or third staple 4870. The tissue thickness compensating element may include a woven fabric material in which oxidized regenerated cellulose (ORC) is embedded to promote hemostasis. The Tissue Thickness Compensation Element 4920 is incorporated herein by reference in its entirety, US Patent Application No. 14 / 187,389, filed February 24, 2014, invented with the title "IMPLANTABLE LAYER ASSEMBLES". , US Patent Application Publication No. 2015/0238187, may include any of the various tissue thickness compensating element configurations disclosed. As can be seen from FIG. 116, the tissue thickness compensating element 4920 has the thickness indicated by “a”. In one embodiment, the tissue thickness compensating element has a thickness of about 0.038 cm to 0.11 cm (0.015 "to 0.045"). However, other thicknesses may be used.

Therefore, in at least one embodiment shown in FIGS. 114-117, the staple cartridge 4810 may utilize different numbers of staples in each of the three rows of staples. In some configurations, the inner row of staples comprises conventional staples with the smallest wire diameter and the shortest unformed leg length. Each first staple has the shortest crown width and each first staple is oriented at a uniform angle with respect to the tangential direction. The intermediate staple has a different configuration from the first staple configuration. Each leg of the intermediate staple has a medium wire diameter and unformed leg length. Each intermediate staple has a crown width slightly wider than the crown width of the inner staple, and each intermediate staple has a uniform angle with respect to the tangential direction, but is oriented at a different angle with respect to the inner row of inner staples. Be done. Each outer staple has a configuration similar to that of the intermediate staple. The third leg of each outer staple has a maximum wire diameter compared to the wire diameter of the legs of the inner and intermediate staples, respectively. The crown width of each outer staple is significantly wider than the crown width of the inner and middle staples. Each outer staple is oriented tangentially to the circumferential direction of the cartridge. The outer row of staples utilizes an ORC-embedded woven texture thickness compensating element (spacer cloth) to promote hemostasis. Gradual anvils and gradual cartridge decks provide different preformed heights, where the staples with the lowest preformed height are in the inner row and the staples with the highest preformed height are Located in the outer column. The anvil pockets corresponding to the inner and middle rows of staples are "tilted" to form the three-dimensional staples in the inner and middle rows. "Bathtub" anvil pockets correspond to the outer rows of staples. In at least one embodiment, the staples may be fired continuously. For example, the staples in the inner and middle rows may be fired first, followed by the staples in the outer row. The annular knife cuts the clamped tissue during the firing process.

As described in various embodiments of the present disclosure, the ring-shaped staple fastening device comprises an anvil and a staple cartridge. One or both of the anvil and staple cartridges can be moved between the open and closed configurations to capture tissue between them. The staple cartridge houses the staples inside or at least partially inside the ring of staple cavities. Staples are arranged in a ring in the tissue captured from each of the staple cavities and formed into the corresponding ring forming pockets in the anvil. The firing drive is configured to eject staples from the staple cartridge during the firing stroke of the firing drive.

Anvils of ring-shaped staple fasteners typically include a tissue compression surface and an annular array of staple-forming pockets defined on the tissue compression surface. The anvil further comprises a mounting mount and a stem extending from the mounting mount. The stem is configured to be detachably attached to the closed drive of the ring staple so that the anvil can be moved towards and away from the staple cartridge of the ring staple.

Staple cartridges and anvils can be moved separately within the patient's body and combined in the surgical field. In various cases, the staple cartridge travels, for example, through the patient's narrow tubular body, such as the colon. Staple cartridges may include multiple tissue contact mechanisms, such as stepped decks and pocket extensions. To avoid unintended injury to the patient as the staple cartridge moves towards the target tissue, the present disclosure provides various modifications, among other things, to multiple tissue contact mechanisms.

With reference to FIG. 118, a partial cross-sectional view shows the staple cartridge 15500 of a cricoid surgical instrument that exerts pressure on the tissue (T) as it moves through the patient's body. A plurality of structural features of the staple cartridge 15500 are modified to form a specifically contoured outer frame 15502 to protect the tissue. The staple cartridge 15500 comprises a plurality of annular rows of staple cavities. In at least one example, as illustrated in FIG. 118, the outer row 15504 of the staple cavity 15510 surrounds the inner row 15506 of the staple cavity 15512 at least partially. The staple cavities 15510 and 15512 are configured to accommodate the staples 15530 and 15531, respectively.

The terms inside and outside describe a relationship relative to the central axis 15533. For example, the inner tissue contact surface 15518 is closer to the central axis 15533 than the outer tissue contact surface 15516.

As illustrated in FIG. 119, the staple cartridge 15500 comprises a stepwise cartridge deck 15508. The outer row 15504 is defined on the outer tissue contact surface 15516 of the stepped cartridge deck 15508, while the inner row 15506 is defined on the inner tissue contact surface 15518 of the stepped cartridge deck 15508. The outer tissue contact surface 15516 is stepped down from the inner tissue contact surface 15518, thereby forming a gradient that reduces friction when the staple cartridge 15500 is pressed against the tissue.

In certain cases, the outer tissue contact surface 15516 is parallel to, or at least substantially parallel to, the inner tissue contact surface 15518. In another case, the outer tissue contact surface 15516 is tilted so that the first surface defined by the outer tissue contact surface 15516 is lateral to the second surface defined by the inner tissue contact surface 15518. NS. The angle is defined between the first plane and the second plane. The angle can be an acute angle. In at least one case, the angle can be, for example, any angle selected from the range greater than about 0 ° and less than or equal to about 30 °. In at least one case, the angle can be, for example, any angle selected from a range greater than about 5 ° and less than or equal to about 25 °. In at least one case, the angle can be, for example, any angle selected from a range greater than about 10 ° and less than or equal to about 20 °. The sloping outer tissue contact surface 15516 can reduce friction or tissue run-up on the tissue as the staple cartridge 15500 is moved against the tissue. In at least one case, the sloping outer tissue contact surface 15516 is also stepped down from the inner tissue contact surface 15518.

In at least one case, the inner portion of the outer tissue contact surface 15516 is flat or at least substantially flat, while the outer edge 15548 of the outer tissue contact surface 15516 is such that the staple cartridge 15500 is moved relative to the tissue. The height is set (pitch), R-formed, and / or tilted to reduce friction or ride on the tissue. The staple cavity 15510 exists, for example, in the plane inner portion of the outer tissue contact surface 15516. The outer edge 15550 of the inner tissue contact surface 15518 is also height-set, tilted, and / or R to reduce friction or tissue ride on the tissue as the staple cartridge 15500 is moved against the tissue. Can be formed.

In order to accommodate staples having the same or at least substantially the same unformed height in the staple cavities 15510 in the outer row 15504 and the staple cavities 15512 in the inner row 15504, the staple cavities 15510 in the outer row 15504 have pocket extensions 15514. To be equipped with. The pocket extension 15514 is configured to control and guide the staples 15530 as they are ejected from their respective staple cavities 15510. In certain cases, the pocket extension 15514 may be configured to contain, for example, staples having a higher unformed height than the staples of the inner tissue contact surface 15518.

As illustrated in FIG. 119, the staple cavities 15510 in the outer row 15504 are laterally aligned or at least substantially aligned with the gap 15520 between two adjacent staple cavities 15512 in the inner row 15506. The staple cavity 15510 includes a first end 15522 and a second end 15524. The second end 15524 is such that the staple legs 15530a located at the second end 15524 are radially aligned or at least substantially aligned with the staple legs 15531a located at the first end 15526. , As illustrated in FIG. 118, overlaps one of the first ends 15526 of two continuous staple cavities 15512. Similarly, the first end 15522 of the staple cavity 15510 overlaps the other one second end 15528 of the two continuous staple cavities 15512.

The pocket extension 15514 comprises a first jacket 15532 projecting from the outer tissue contact surface 15516 to hide the tip 15536 of the staple legs 15530a extending beyond the outer tissue contact surface 15516. The first jacket 15532 includes an end 15538 projecting from the first end 15522, an inner side wall 15540, and an outer side wall 15542 extending away from the end 15538 to form the first jacket 15532. To be equipped. In at least one case, the first jacket 15532 defines, or at least substantially, a "C" -shaped wall extending over a portion of the peripheral edge 15535 of the staple cavity 15510 comprising the first end 15522.

To reduce friction against the tissue, the inner side wall 15540 projects from the outer tissue contact surface 15516 at a height higher than the outer side wall 15542. In other words, the outer side wall 15542 is lower in height than the inner side wall 15540. This configuration creates a gradient for a smooth transition from the inner side wall 15540 to the outer side wall 15542 to the outer tissue contact surface 15516. In at least one example, the inner side wall 15540 and the inner tissue contact surface 15518 have the same or at least substantially the same height with respect to the outer tissue contact surface 15516. Alternatively, the inner side wall 15540 and the inner tissue contact surface 15518 have different heights relative to the outer tissue contact surface 15516. In certain cases, the inner side wall 15540 is lower than the inner tissue contact surface 15518 with respect to the outer tissue contact surface 15516. This configuration creates a gradient for a smooth transition from the inner tissue contact surface 15518 to the inner side wall 15540, to the outer side wall 15542, and to the outer tissue contact surface 15516.

The inner tissue contact surface 15518, inner side wall 15540, outer side wall 15542, and / or outer tissue contact surface 15516 define a separate portion of the contoured outer frame 15502. Nevertheless, as illustrated in FIG. 118, such portions are close enough to each other so that when the staple cartridge 15500 is pressed against the tissue, the tissue cannot be trapped between them. Be maintained. In addition, one or more portions may include a slanted, contoured, curved, rounded, and / or slanted outer surface to reduce friction against the tissue. As illustrated in FIG. 118, the upper surface 15544 of the outer side wall 15542 and the upper surface 15546 of the inner side wall 15540 are tilted, contoured, curved, and rounded to define the contoured outer frame 15502. And / or tilted.

In at least one case, the upper surface 15544 and the upper surface 15546 are laterally inclined surfaces with respect to the first surface defined by the outer tissue contact surface 15516 and the second surface defined by the inner tissue contact surface 15518. Is defined. In at least one case, the first angle is defined between the inclined surface and the first surface. The second angle can also be defined between the inclined surface and the second surface. The first and second angles can have the same or at least substantially the same value. Alternatively, the first angle may have different values than the second angle. In at least one case, the first angle and / or the second angle is an acute angle. In at least one case, the first angle is, for example, any angle selected from a range greater than about 0 ° and less than or equal to about 30 °. In at least one case, the first angle is, for example, any angle selected from a range greater than about 5 ° and less than or equal to about 25 °. In at least one case, the first angle is, for example, any angle selected from a range greater than about 10 ° and less than or equal to about 20 °. In at least one case, the second angle is, for example, any angle selected from a range greater than about 0 ° and less than or equal to about 30 °. In at least one case, the second angle is, for example, any angle selected from a range greater than about 5 ° and less than or equal to about 25 °. In at least one case, the second angle is, for example, any angle selected from a range greater than about 10 ° and less than or equal to about 20 °.

In addition to the above, the pocket extension 15514 comprises a second jacket 15534 that is similar in many respects to the first jacket 15532. Like the first jacket 15532, the second jacket 15534 projects from the outer tissue contact surface 15516 to hide the tips of the staple legs that extend beyond the outer tissue contact surface 15516. The second jacket 15534 includes an end 15538 protruding from the second end 15524, an inner side wall 15540, and an outer side wall 15542 extending from the end 15538 to form the second jacket 15534.

Although one pocket extension 15514 is illustrated in FIG. 119, it is understood that, for example, one or more outer pocket extensions 15514 may project from the outer tissue contact surface 15516. In at least one case, the first jacket 15532 and the second jacket 15534 are connected via side walls, for example defining a pocket extension that completely surrounds the staple cavity.

While many of the surgical instrument systems described herein are powered by electric motors, the surgical instrument systems described herein can operate in any suitable manner. In various cases, the surgical instrument system described herein can be operated, for example, by a manually operated trigger. In certain cases, the motors disclosed herein may include one or more parts of a robotic control system. In addition, any of the end effectors and / or tool assemblies disclosed herein can be used with robotic surgical instrument systems. FIG. 82A schematically shows a robotic surgical instrument system 20'. On the other hand, US patent application Nos. 13 / 118,241, the title of the invention "SURGICAL STAPLING INSTRUMENTS WITH ROTTABLE STAPLE DEPLOYMENT ARRANGEMENTS", and the current US patent application publication No. 2012/02987719 include, for example, a plurality of robotic surgical instrument systems. An example of is disclosed in more detail.

The surgical instrument system described herein has been described in connection with the deployment and deformation of staples, but the embodiments described herein are not limited thereto. Various embodiments are also conceivable in which fasteners other than staples, such as clamps or tacks, are deployed. In addition, various embodiments have been conceived that utilize any suitable means for sealing the tissue. For example, end effectors according to various embodiments may include electrodes configured to heat and seal the tissue. Also, for example, end effectors according to certain embodiments can apply vibrational energy to seal the tissue.

The entire disclosure below is incorporated herein by reference.
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U.S. Pat. No. 5,405,073 issued on April 11, 1995, title of invention "FLEXIBLE SUPPORT SHAFT ASSEMBLY",
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U.S. Patent Application Publication No. 2010/0264194 filed on April 22, 2010, the title of the invention "SURGICAL STAPLING INSTRUMENT WITH AN ARTICULATABLE END EFFECTOR", now U.S. Patent No. 8,308,040.

Although various devices have been described herein with specific embodiments, modifications and modifications may be made to those embodiments. Also, although the material is disclosed for a particular component, other materials may be used. Further, according to various embodiments, a single component may be replaced by a plurality of components, or a plurality of components may be replaced by a single component in order to perform a given function. .. The above description and the following claims are intended to include all such amendments and changes.

The devices disclosed herein can be designed to be discarded after a single use, or can be designed to be used multiple times. However, in either case, the device can be readjusted for reuse after at least one use. Readjustment includes any combination of steps including, but not limited to, a device disassembly step, followed by a device cleaning step or a specific part replacement step, and a subsequent reassembly step of the device. be able to. In particular, the readjustment facility and / or surgical team can disassemble the device and reassemble the device for subsequent use after the device cleaning process and / or the replacement process for certain parts. Those skilled in the art will appreciate that readjustment of the device can utilize a variety of techniques for disassembly, cleaning / replacement, and reassembly. The use of such techniques and the resulting readjusted devices are all within the scope of the present invention.

The devices disclosed herein can be processed prior to surgery. First, new or used utensils may be obtained and cleaned as needed. The instrument can then be sterilized. In one sterilization technique, the instrument is placed in a closed and sealed container, such as a plastic bag or TYVEK bag. The vessel and appliance can then be placed in a radiation field that can penetrate the vessel, such as gamma rays, X-rays, and / or high energy electrons. Radiation can kill bacteria on instruments and in containers. After this, the sterilized instrument can be stored in a sterilized container. The sealed container can keep the instrument sterile until it is opened in a medical facility. The device can also be sterilized using any other technique known in the art, including but not limited to β-rays, gamma-rays, ethylene oxide, hydrogen peroxide plasma, and / or water vapor.

Although the present invention has been described as having a representative design, the present invention may be further modified within the spirit and scope of the present disclosure. Accordingly, this application shall include any modification, use, or adaptation of the invention that uses its general principles.

All patents, publications, or other disclosures that are incorporated herein by reference in whole or in part are any existing definitions, statements, or other disclosures in which the incorporated material is described in this disclosure. Incorporated herein only to the extent that it is consistent with the content. As such, and to the extent necessary, the disclosures expressly set forth herein shall supersede any contradictory statements incorporated herein by reference. Any document that is incorporated herein by reference, but is inconsistent with existing definitions, descriptions, or other disclosed documents described herein, or parts thereof, is incorporated and existing. It shall be incorporated only to the extent that there is no contradiction with the disclosed content.

[Implementation mode]
(1) A replaceable staple cartridge for use with a ring-shaped staple fastener, wherein the replaceable staple cartridge is
The cartridge body
Organization support deck and
A cartridge body comprising a staple cavity defined in the deck.
Staples that are retractably stored in the staple cavity and
Anvils that are configured to deform the staples,
A closed drive with a trocar shaft, the anvil can be attached to the trocar shaft, the trocar shaft has an extension position and a retracted position so as to move the anvil between an open position and a closed position. Movable between, the trocar shaft extends above the deck when the trocar shaft is in the extended position, and the trocar shaft extends over the deck when the trocar shaft is in the retracted position. With a closed drive that is receding downwards,
When the trocar shaft is in the retracted position, the closed drive is a firing drive that is movable towards the deck between the unlaunched position and the firing position in order to eject the staples from the staple cavity. With a launch drive that is movable to the extension position to reopen the anvil after the staple has been deformed relative to the anvil.
A replaceable staple cartridge comprising means for preventing the trocar shaft from being returned to the retracted position after the firing drive ejects the staples from the staple cavity.
(2) The replaceable staple cartridge according to the first embodiment, further comprising a connector configured to releasably attach the cartridge body to the ring-shaped staple fastener.
(3) The replaceable staple cartridge according to embodiment 2, wherein the trocar shaft comprises a proximal end drive end that is operably engaged with a closed drive of the annular staple fastener.
(4) The replaceable according to embodiment 1, further comprising a launch drive lock configured to prevent the launch drive from being moved to the launch position before the anvil is moved to the closed position. Staple cartridge.
(5) The replaceable according to embodiment 1, further comprising a closure lockout configured to prevent the closure drive from being moved to the retracted position before the anvil is attached to the trocar shaft. Staple cartridge.

(6) A frame having a distal end and
The cartridge body including the staple cavity and
Staples that are retractably stored in the staple cavity and
Anvils that are configured to deform the staples,
It ’s a closed drive,
A trocar shaft that is movable between the retracted position and the extended position,
A distal connector, wherein the anvil can be attached to the distal connector.
With a lock notch, with a closed drive,
A firing drive that is movable towards the distal end between the unlaunched and launched positions to eject the staples from the staple cavity.
A trocar lock rotatably mounted on the frame, the trocar lock is movable between an unlocked configuration and a locked configuration, the trocar lock is such that the firing drive is in the unlaunched position. When the trocar lock, which is held in the unlocked configuration by the launch drive,
A lock spring operably coupled to the trocar lock, the lock spring is configured to urge the trocar lock into the lock configuration after the firing drive has moved distally from the unlaunched position. The lock spring comprises a lock spring that is configured to urge the trocar lock into the lock notch when the closing drive is returned to the extended position to reopen the anvil. Staple fastening assembly.
(7) The ring-shaped staple fastening according to embodiment 6, further comprising a launch drive lock configured to prevent the launch drive from being moved to the launch position before the anvil is moved to the closed position. assembly.
(8) The annular staple assembly according to embodiment 6, wherein the trocar shaft comprises a proximal end drive end that is operably engageable with a closed drive of the annular staple fastener.
(9) The ring shape according to embodiment 6, further comprising a launch drive lock configured to prevent the launch drive from being moved to the launch position before the closed drive is moved to the retracted position. Staple fastening assembly.
(10) The anvil can be attached to the trocar shaft, and the ring-shaped stapled assembly prevents the closed drive from being moved to the retracted position before the anvil is attached to the trocar shaft. The ring-shaped stapled assembly according to embodiment 6, further comprising a closure lockout configured in.

(11) A replaceable staple cartridge for use with a ring-shaped staple fastener, wherein the replaceable staple cartridge is
A frame with a distal end and
The cartridge body including the staple cavity and
Staples that are retractably stored in the staple cavity and
A closed drive with a trocar shaft that is movable between the extended and retracted positions so that the anvil is moved between the open and closed positions.
A firing drive that is movable towards the distal end between an unlaunched position and a firing position to eject the staples from the staple cavity when the trocar shaft is in the retracted position, the closed drive. With a launch drive that is movable to the extension position to reopen the anvil after the staple has been completely deformed relative to the anvil.
A replaceable staple cartridge comprising means for preventing the trocar shaft from being returned to the retracted position after the trocar shaft has moved to the extended position to reopen the anvil.
(12) The replaceable staple cartridge according to embodiment 11, further comprising a connector configured to releasably attach the cartridge body to the ring-shaped staple fastener.
(13) The replaceable staple cartridge according to embodiment 12, wherein the trocar shaft comprises a proximal end drive end that is operably engaged with a closed drive of the annular staple fastener.
(14) The replacement according to embodiment 11, further comprising a launch drive lock configured to prevent the launch drive from being moved to the launch position before the trocar shaft is moved to the retracted position. Possible staple cartridge.
(15) The anvil can be attached to the trocar shaft, and the replaceable staple cartridge prevents the trocar shaft from being moved to the retracted position before the anvil is attached to the trocar shaft. The replaceable staple cartridge according to embodiment 11, further comprising a closure lockout configured in.

(16) A replaceable staple cartridge for use with a ring-shaped staple fastener, wherein the replaceable staple cartridge is
A frame with a distal end and
The cartridge body including the staple cavity and
Staples that are retractably stored in the staple cavity and
Anvils that are configured to deform the staples,
A closed drive with a trocar shaft that is movable between the extended and retracted positions so that the anvil is moved between the open and closed positions.
A firing drive that is movable towards the distal end between an unlaunched position and a firing position to eject the staples from the staple cavity when the trocar shaft is in the retracted position, the closed drive. With a launch drive, which is movable to the extension position to reopen the anvil after the staple has been completely deformed relative to the anvil.
Replacement, comprising a used cartridge lockout configured to prevent the trocar shaft from being returned to the retracted position after the trocar shaft has been moved to the extended position to reopen the anvil. Possible staple cartridge.
(17) The replaceable staple cartridge according to embodiment 16, further comprising a connector configured to releasably attach the cartridge body to the ring-shaped staple fastener.
(18) The replaceable staple cartridge according to embodiment 17, wherein the trocar shaft comprises a proximal end drive end that is operably engaged with a closed drive of the annular staple fastener.
(19) The replacement according to embodiment 16, further comprising a launch drive lock configured to prevent the launch drive from being moved to the launch position before the trocar shaft is moved to the retracted position. Possible staple cartridge.
(20) The anvil can be attached to the trocar shaft, and the replaceable staple cartridge prevents the trocar shaft from being moved to the retracted position before the anvil is attached to the trocar shaft. The replaceable staple cartridge according to embodiment 16, further comprising a closure lockout configured in.

Claims (9)

A replaceable assembly for use with a ring staple fastener, said replaceable assembly .
The cartridge body
Organization support deck and
A cartridge body comprising a staple cavity defined within the tissue support deck.
Staples that are retractably stored in the staple cavity and
Anvils that are configured to deform the staples,
A closed drive with a trocar shaft, the anvil can be attached to the trocar shaft, the trocar shaft has an extension position and a retracted position so as to move the anvil between an open position and a closed position. being movable between said trocar shaft, when the trocar shaft is in said extended position, extend above the tissue support deck, the trocar shaft, when the trocar shaft is in said retracted position, A closed drive that recedes below the tissue support deck,
When the trocar shaft is in said retracted position, to eject the staples from the staple cavities, a is movable toward the tissue supporting deck between the unfired position and the fired position firing drive, the firing The drive comprises a rotary shaft and a translational mobile collar that screwed onto the rotary shaft so that the closed drive reopens the anvil after the staples have been deformed relative to the anvil. A launch drive that is movable to the extension position,
After the firing drive has emitted the staples from the staple cavities, Bei example and a lockout to prevent the trocar shaft is returned to the retracted position,
The lockout comprises a lock arm rotatably attached to the rotary shaft, a spring, and a lock recess defined on the trocar shaft and / or the anvil.
The lock arm is held between the rotary shaft and the translational moving collar as the trocar shaft and the anvil move relative to the firing drive and place the anvil with respect to the staple cartridge. Configured to
When the rotary shaft rotates in a first direction and the translational moving collar is moved distally, the spring is configured to urge the lock arm against the trocar shaft.
When the anvil is reopened, the spring is configured to urge the lock arm into the lock recess.
When the lock arm is arranged in the lock recess, when the trocar shaft retracts, the lock arm abuts on the lock shoulder defined by the lock recess and is configured to prevent the trocar shaft and the anvil from retracting. A replaceable assembly that has been made. The replaceable assembly of claim 1, further comprising a connector configured to releasably attach the cartridge body to the ring-shaped staple fastener. The replaceable assembly of claim 2, wherein the trocar shaft comprises a closed drive of the annular staple fastener and a screwable proximal end drive end. A replaceable assembly for use with a ring staple fastener, said replaceable assembly .
A frame with a distal end and
The cartridge body including the staple cavity and
Staples that are retractably stored in the staple cavity and
A closed drive with a trocar shaft that is movable between the extended and retracted positions so that the anvil is moved between the open and closed positions.
When the trocar shaft is in said retracted position, to eject the staples from the staple cavities, a non-firing position and the firing drive is movable toward said distal end between a firing position, the firing The drive comprises a rotary shaft and a translational mobile collar that screwed onto the rotary shaft, the closed drive reopening the anvil after the staples have been completely deformed relative to the anvil. With a launch drive, which is movable in said extension position,
After the trocar shaft is moved to the extended position to open the anvil again, Bei example and a lockout to prevent the trocar shaft is returned to the retracted position,
The lockout comprises a lock arm rotatably attached to the rotary shaft, a spring, and a lock recess defined on the trocar shaft and / or the anvil.
The lock arm is held between the rotary shaft and the translational moving collar as the trocar shaft and the anvil move relative to the firing drive and place the anvil with respect to the staple cartridge. Configured to
When the rotary shaft rotates in a first direction and the translational moving collar is moved distally, the spring is configured to urge the lock arm against the trocar shaft.
When the anvil is reopened, the spring is configured to urge the lock arm into the lock recess.
When the lock arm is arranged in the lock recess, when the trocar shaft retracts, the lock arm abuts on the lock shoulder defined by the lock recess and is configured to prevent the trocar shaft and the anvil from retracting. A replaceable assembly that has been made. The replaceable assembly of claim 4 , further comprising a connector configured to releasably attach the cartridge body to the ring-shaped staple fastener. The replaceable assembly of claim 5 , wherein the trocar shaft comprises a closed drive of the annular staple fastener and a screwable proximal end drive end. A replaceable assembly for use with a ring staple fastener, said replaceable assembly .
A frame with a distal end and
The cartridge body including the staple cavity and
Staples that are retractably stored in the staple cavity and
Anvils that are configured to deform the staples,
A closed drive with a trocar shaft that is movable between the extended and retracted positions so that the anvil is moved between the open and closed positions.
When the trocar shaft is in said retracted position, to eject the staples from the staple cavities, a non-firing position and the firing drive is movable toward said distal end between a firing position, the firing The drive comprises a rotary shaft and a translational mobile collar that screwed onto the rotary shaft, the closed drive reopening the anvil after the staples have been completely deformed relative to the anvil. With a launch drive, which is movable to the extension position,
After the trocar shaft is moved to the extended position to open the anvil again, Bei example and a spent cartridge lockout that is configured to prevent the trocar shaft is returned to the retracted position,
The used cartridge lockout comprises a lock arm rotatably attached to the rotary shaft, a spring, and a lock recess defined on the trocar shaft and / or the anvil.
The lock arm is held between the rotary shaft and the translational moving collar as the trocar shaft and the anvil move relative to the firing drive and place the anvil with respect to the staple cartridge. Configured to
When the rotary shaft rotates in a first direction and the translational moving collar is moved distally, the spring is configured to urge the lock arm against the trocar shaft.
When the anvil is reopened, the spring is configured to urge the lock arm into the lock recess.
When the lock arm is arranged in the lock recess, when the trocar shaft retracts, the lock arm abuts on the lock shoulder defined by the lock recess and is configured to prevent the trocar shaft and the anvil from retracting. A replaceable assembly that has been made. The replaceable assembly of claim 7 , further comprising a connector configured to releasably attach the cartridge body to the ring-shaped staple fastener. The replaceable assembly of claim 8 , wherein the trocar shaft comprises a closed drive of the annular staple fastener and a screwable proximal end drive end.

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