US2834346A - Syringe and hub locking assembly - Google Patents

Syringe and hub locking assembly Download PDF

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Publication number
US2834346A
US2834346A US513482A US51348255A US2834346A US 2834346 A US2834346 A US 2834346A US 513482 A US513482 A US 513482A US 51348255 A US51348255 A US 51348255A US 2834346 A US2834346 A US 2834346A
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Prior art keywords
barrel
hub
assembly
needle
tip
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US513482A
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John Q Adams
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Becton Dickinson and Co
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Becton Dickinson and Co
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/348—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub snap lock, i.e. upon axial displacement of needle assembly
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle

Definitions

  • This invention relates to a structurally and functionally improved syringe assembly and especially an assembly intended for a one-time use.
  • the cannula may be placed in communication with the barrel interior so that a hypodermic injection may be effected.
  • a further object of the invention is that of providing an assembly embodying the advantages set forth in the preceding paragraph and in which the needle will be mounted by the barrel in such a manner as to form one rigid unit therewith and in which the connections established will be free from the dangers of breakage or leakage without it being necessary to employ washers or other packing or cushioning elements.
  • Still another object is that of designing a syringe assembly in which the barrel or its tip may be formed of suitable plastics including synthetic rubber and be capable of being produced in large quantities at relatively nominal figures; the assembly presenting a pleasing appearance and being usable by a physician or technician in accordance with ordinary procedures.
  • Fig. 1 is a partly sectional side view of a complete assembly ready for use.
  • Fig. 2 is a fragmentary sectional view of the base portion of the needle assembly.
  • Fig. 3 is a similar view of the outer end of the barrel.
  • Fig. 4 shows in section the needle and its associated parts mounted upon the barrelthis view being taken along the line 4--4 in the direction of the arrows as indicated in Fig. 5.
  • Fig. 5 is a transverse sectional view taken along the line 5--5 in the direction of the arrows as indicated in Fig. 4;
  • Fig. 6 is a side elevation of the barrel end as shown in Fig. 3.
  • the numeral 10 indicates the barrel of the syringe which is preferably furnished with a flange 11 adjacent its inner or open end.
  • That piston may take the form of a stopper 12 of synthetic or natural rubber and conveniently furnished with a threaded recess 13 in its rear face.
  • the barrel is formed of a suitable plastic such as polyethylene; the finger flange 11 being likewise formed of this material and preferably integral with the barrel.
  • Forming part of the syringe is a needle assembly.
  • a cannula 14 having piercing ends 15 and 16.
  • a hub 17 which is cup-shaped and formed of rigid material (preferably metal) has its base portion extended as at 18 and disposed in direct contact with the cannula 14. These parts are secured against movements in any desired manner such as, for example, by staking.
  • the side walls of the cup providing the hub are formed with instruck portions 19 furnishing pawls.
  • That end of the barrel which is opposite flange 11 provides a tip including a head portion having a diameter less than the internal diameter of the hub cup 17. Below this head the side faces of the tip are recessed as indicated at 21.
  • the recess is interrupted by ribs 22 integral with the tip portion and extending axially of the barrel. In this manner a minimum of material may be embodied in the tip portion while, at the same time, the latter will incorporate maximum strength.
  • the base of zones of each of the ribs may include foot portions 22. The ribs are preferably spaced from each other. The distance between the outer edges of a pair of opposed foot portions 22 will be equal to the internal diameter of hub cup 17 Head 20 presents a conveniently fiat outer face 23.
  • a protuberance 24 may be included in the assembly. Through this protuberance and into the body of the tip, a bore 25 is conveniently provided. The inner end of this bore terminates in a pier-ceable diaphragm portion 26. The outer end of the barrel body terminates in a surface 27 perpendicular to the axis of the same. That surface extends from the face of recesses 21 or the outer edges of foot portions 22 through to the side face of the barrel.
  • a sheath is furnished to house needle 14.
  • That sheath is preferably again formed of polyethylene. It will include a body 28 presenting a bore which may be tapered towards the outer sheath end. The diameter of that bore should be adequate to freely accommodate cannula 14. Its length should be in excess of the length of that needle.
  • the sheath may include a flange portion 29. Also at this end, the bore of the sheath should have a diameter such that it will snuggly bear in contact with the extended portion 18 of the hub'and the base portion adjacent thereto.
  • the sheath may present a coupling portion 30 embracing screw threads. That portion should have a diameter such that it may enter into and engage with the threads of the recess 13 formed in piston stopper 12.
  • Sheath 28 will have its flange portion 29 disposed to rest against the outer surface of the face of the cup providing hub 17. The adjacent bore portion of the sheath will frictionally engage the extended part 18 of this hub. In this manner, the outer end of the hypodermic needle will be completely protected. The inner end of the same will extend into bore 25 and rest in immediate proximity to diaphragm portion 26. Under these circumstances pawls 19 will rest against the surfaces of head portion 20. They will frictionally bear against those surfaces so that the needle assembly will be maintained in position.
  • the inner piercing end 16 of the needle will have penetrated diaphragm portion 26 as shown in Fig. 4. Accordingly, communication is established between the barrel interior and the lumen of the cannula.
  • the syringe is now rendered ready for use by simply removing sheath 28 to strip it from the projecting portion 18 of the hub.
  • coupling portion 30 is mated 'with recess 13 so that the sheath serves as an actuating rod or plunger for the piston 12.
  • Tissue penetration is now effected by means of the outer needle end 15.
  • An aspirating action may be resorted to by retracting stopper 12. Normally, however, this piston will simply be projected by exerting thrust on the flange portion 29 of the sheath. Under those conditions the medicament will be expelled through the bore of the needle and injected into the tissues underlying the epidermis.
  • a hypodermic syringe assembly including in combination a barrel, a tip at the end of said barrel, a hollow needle having piercing ends, a cup-shaped hub secured to said needle at a point intermediate its ends, an enlarged head portion defining the end of said tip, the side face of said tip presenting a receiving recess intermediate said head and barrel, a pawl carried by said hub and extending into .said recess to lock said hub and needle against removal from said tip, said hub encircling said tip and having its edge in engagement with the outer surface of said barrel and one of the needle ends extending through said tip into communication with the interior of the barrel, at least certain recited parts of said assembly being formed of compressible material whereby that material will be placed under compression as said hub is telescoped over said tip, whereby to cause said hub to be urged outwardly and force an edge of said pawl into contact with an end surface of said receiving recess.
  • said barrel being formed of compressible material
  • said hub being formed of substantially rigid material whereby its edge compresses the material of the barrel in such surface to urge said hub outwardly and force an edge of said pawl into contact with the recess surface.
  • said tip being formed with a bore to receive an end of the needle and a diaphragm portion integral with said barrel closing said bore and to be pierced by said needle end.
  • a pair of ribs extending axially of said tip and forming a part of the same, said ribs defining said pawlreceiving recess between them.
  • annular series of ribs forming a part of said tip and extending axially of said barrel to define between them a number of such recesses and an annular series of pawls forming a part of said hub to extend inwardly of the same one into each of said recesses.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Description

7 0 Z n 4. l/I/l //I 17/ l/z INVENTOR ffl/tn a. fldam ATTORNEYS y 13, 1958 J. Q. ADAMS SYRINGE AND HUB LOCKING ASSEMBLY Filed June 6, 1955 United rates Patent 9 SYRINGE AND HUB LOCKING ASSEMBLY John Q. Adams, Newark, N. 1., assignor to B'ecton, Dickinson and Company, Rutherford, N. J., a corporation of New Jersey Application June 6, 1955, Serial No. 513,482
7 Claims. (Cl. 128-218) This invention relates to a structurally and functionally improved syringe assembly and especially an assembly intended for a one-time use.
It is a primary object of the invention to furnish an assembly including a barrel and needle; the barrel capable of being prefilled with medicament which will be maintained in a sterile condition free from any factors tending to cause deterioration or contamination. Accordingly, the assembly together with its contained liquid will remain in proper condition for indefinite periods of time. When the assembly is to be used, then, by simple manipulation the cannula may be placed in communication with the barrel interior so that a hypodermic injection may be effected.
A further object of the invention is that of providing an assembly embodying the advantages set forth in the preceding paragraph and in which the needle will be mounted by the barrel in such a manner as to form one rigid unit therewith and in which the connections established will be free from the dangers of breakage or leakage without it being necessary to employ washers or other packing or cushioning elements.
Still another object is that of designing a syringe assembly in which the barrel or its tip may be formed of suitable plastics including synthetic rubber and be capable of being produced in large quantities at relatively nominal figures; the assembly presenting a pleasing appearance and being usable by a physician or technician in accordance with ordinary procedures.
With these and other objects in mind, reference is had to the attached sheet of drawings illustrating one practical embodiment of the invention and in which:
Fig. 1 is a partly sectional side view of a complete assembly ready for use.
Fig. 2 is a fragmentary sectional view of the base portion of the needle assembly.
Fig. 3 is a similar view of the outer end of the barrel.
Fig. 4 shows in section the needle and its associated parts mounted upon the barrelthis view being taken along the line 4--4 in the direction of the arrows as indicated in Fig. 5.
Fig. 5 is a transverse sectional view taken along the line 5--5 in the direction of the arrows as indicated in Fig. 4; and
Fig. 6 is a side elevation of the barrel end as shown in Fig. 3.
Referring primarily to Fig. l, the numeral 10 indicates the barrel of the syringe which is preferably furnished with a flange 11 adjacent its inner or open end. Within the bore ofthis barrel a piston is mounted for reciprocation. That piston may take the form of a stopper 12 of synthetic or natural rubber and conveniently furnished with a threaded recess 13 in its rear face. The barrel is formed of a suitable plastic such as polyethylene; the finger flange 11 being likewise formed of this material and preferably integral with the barrel.
Forming part of the syringe is a needle assembly. This embraces, according to the present teachings, a cannula 14 having piercing ends 15 and 16. A hub 17 which is cup-shaped and formed of rigid material (preferably metal) has its base portion extended as at 18 and disposed in direct contact with the cannula 14. These parts are secured against movements in any desired manner such as, for example, by staking. The side walls of the cup providing the hub are formed with instruck portions 19 furnishing pawls.
That end of the barrel which is opposite flange 11 provides a tip including a head portion having a diameter less than the internal diameter of the hub cup 17. Below this head the side faces of the tip are recessed as indicated at 21. The recess is interrupted by ribs 22 integral with the tip portion and extending axially of the barrel. In this manner a minimum of material may be embodied in the tip portion while, at the same time, the latter will incorporate maximum strength. The base of zones of each of the ribs may include foot portions 22. The ribs are preferably spaced from each other. The distance between the outer edges of a pair of opposed foot portions 22 will be equal to the internal diameter of hub cup 17 Head 20 presents a conveniently fiat outer face 23. Centrally of this face, a protuberance 24 may be included in the assembly. Through this protuberance and into the body of the tip, a bore 25 is conveniently provided. The inner end of this bore terminates in a pier-ceable diaphragm portion 26. The outer end of the barrel body terminates in a surface 27 perpendicular to the axis of the same. That surface extends from the face of recesses 21 or the outer edges of foot portions 22 through to the side face of the barrel.
A sheath is furnished to house needle 14. That sheath is preferably again formed of polyethylene. It will include a body 28 presenting a bore which may be tapered towards the outer sheath end. The diameter of that bore should be adequate to freely accommodate cannula 14. Its length should be in excess of the length of that needle. At its inner end the sheath may include a flange portion 29. Also at this end, the bore of the sheath should have a diameter such that it will snuggly bear in contact with the extended portion 18 of the hub'and the base portion adjacent thereto. At its outer end, the sheath may present a coupling portion 30 embracing screw threads. That portion should have a diameter such that it may enter into and engage with the threads of the recess 13 formed in piston stopper 12.
In use, it will be understood that the bore of the barrel will have been filled with medicament in a desired volume. Prior to such filling the barrel will, of course, have been cleaned and sterilized. This is also true of the other parts of the assembly. Piston stopper 12 will close the outer end of the bore, thus completely enclosing the medicament and sealing it from escape and contamination as a consequence of this piston and diaphragm portion 26.
Sheath 28 will have its flange portion 29 disposed to rest against the outer surface of the face of the cup providing hub 17. The adjacent bore portion of the sheath will frictionally engage the extended part 18 of this hub. In this manner, the outer end of the hypodermic needle will be completely protected. The inner end of the same will extend into bore 25 and rest in immediate proximity to diaphragm portion 26. Under these circumstances pawls 19 will rest against the surfaces of head portion 20. They will frictionally bear against those surfaces so that the needle assembly will be maintained in position.
Now when the assembly is to be used all the operator will have to do is to grasp barrel 10 with one hand and sheath 28 with the other. Moving the parts axially towards each other, thrust will be exerted by flange 29 against the outer face of the hub 17. This will cause the pawls 19 to override the head with the skirt or side wall portion of the hub overriding the foot portion 22' adjacent the base parts of ribs 22. Proportioning is resorted to so that the free edge of the cup rides into contact with surface 27 of the barrel as shown in Fig. 4 under continued thrust. Simultaneously, the inner face of the base portion of the cup rides into engagement with the outer face 23 of the tip.
The barrel being formed of a slightly compressible or yielding material, a sealing engagement between the cup surface and outer face 23 is assured under these circumstances. Most important a stable support is thus established between these surfaces. Pawls 19 will ride into recesses 21 and come to underlie head 20 at points between the ribs 22. The edge of the cup being in firm engagement with surface 27, a slight compressing or indenting of that surface by the cup edges will occur such that the hub is urged outwardly. Therefore, the free ends of the pawls are forced into firm contact with the underface of head 20. Under such conditions, the needle assembly in effect becomes a unit rigid with the barrel so that a physician by manipulating the latter will cause the needle to move with it and free from any play of the needle assembly with respect to that barrel.
Simultaneously with the aforedescribed movements of the parts, the inner piercing end 16 of the needle will have penetrated diaphragm portion 26 as shown in Fig. 4. Accordingly, communication is established between the barrel interior and the lumen of the cannula. The syringe is now rendered ready for use by simply removing sheath 28 to strip it from the projecting portion 18 of the hub. Thereupon, coupling portion 30 is mated 'with recess 13 so that the sheath serves as an actuating rod or plunger for the piston 12. Tissue penetration is now effected by means of the outer needle end 15. An aspirating action may be resorted to by retracting stopper 12. Normally, however, this piston will simply be projected by exerting thrust on the flange portion 29 of the sheath. Under those conditions the medicament will be expelled through the bore of the needle and injected into the tissues underlying the epidermis.
Thus among others the several objects of the invention as specifically aforenoted are achieved. Obviously numerous changes in construction and rearrangements of the parts may be resorted to without departing from the spirit of the invention as defined by the claims.
I claim:
1. A hypodermic syringe assembly including in combination a barrel, a tip at the end of said barrel, a hollow needle having piercing ends, a cup-shaped hub secured to said needle at a point intermediate its ends, an enlarged head portion defining the end of said tip, the side face of said tip presenting a receiving recess intermediate said head and barrel, a pawl carried by said hub and extending into .said recess to lock said hub and needle against removal from said tip, said hub encircling said tip and having its edge in engagement with the outer surface of said barrel and one of the needle ends extending through said tip into communication with the interior of the barrel, at least certain recited parts of said assembly being formed of compressible material whereby that material will be placed under compression as said hub is telescoped over said tip, whereby to cause said hub to be urged outwardly and force an edge of said pawl into contact with an end surface of said receiving recess.
2. In a hypodermic syringe assembly as specified in claim 1, the depth of said recess and the length of said pawl and the height of said hub being such that with the edge of the latter bearing directly in intimate engagement with that surface of the barrel which is adjacent the tip, the base surface of said hub bears in contact with an outer surface of said head.
3. In a hypodermic syringe assembly as specified in claim 2, said barrel being formed of compressible material, said hub being formed of substantially rigid material whereby its edge compresses the material of the barrel in such surface to urge said hub outwardly and force an edge of said pawl into contact with the recess surface.
4. In a hypodermic syringe assembly as specified in claim 1, said tip being formed with a bore to receive an end of the needle and a diaphragm portion integral with said barrel closing said bore and to be pierced by said needle end.
5. In a hypodermic syringe assembly as specified in claim 1, a pair of ribs extending axially of said tip and forming a part of the same, said ribs defining said pawlreceiving recess between them.
6. In a hypodermic syringe assembly as specified in claim 1, an annular series of ribs forming a part of said tip and extending axially of said barrel to define between them a number of such recesses and an annular series of pawls forming a part of said hub to extend inwardly of the same one into each of said recesses.
7. In a hypodermic syringe assembly as specified in claim 6, foot portions at the base of each of said ribs and the distance between the outer ends of a pair of such foot portions being substantially equal to the internal diameter of said hub.
References Cited in the file of this patent UNITED STATES PATENTS 1,687,502 Marcy Oct. 16, 1928 1,712,070 Cressler May 7, 1929 2,687,727 Lawshe Aug. 31, 1954 2,695,613 MacGregor Nov. 30, 1954
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Cited By (61)

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US3108591A (en) * 1962-05-29 1963-10-29 Bristol Mycrs Company Syringe
US3141460A (en) * 1961-07-07 1964-07-21 Becton Dickinson Co Blood collecting assembly
US3491757A (en) * 1966-12-30 1970-01-27 Raul Olvera Arce Hypodermic syringe with non-turning tip connector
US3788524A (en) * 1971-12-22 1974-01-29 Cutter Lab Additive container
US3976069A (en) * 1974-04-08 1976-08-24 U.S. Philips Corporation Injection syringe with cartridge retaining tab
US4078565A (en) * 1976-10-04 1978-03-14 Abbott Laboratories Readily activated hypodermic syringe
US4220151A (en) * 1978-09-20 1980-09-02 Sherwood Medical Industries Inc. Disposable Luer lock syringe
US4927605A (en) * 1987-04-22 1990-05-22 Wadley Technologies, Inc. Specimen collection and sampling container
WO1995001812A1 (en) * 1993-07-09 1995-01-19 Disetronic Ag Needle system fastening mechanism
US20030040720A1 (en) * 2001-08-22 2003-02-27 Steube Gregory Alan Needle hub assembly
US20040054336A1 (en) * 2002-07-03 2004-03-18 Klint Henrik Sonderskov Needle mounting system and a method for mounting a needle assembly
US20040220533A1 (en) * 2003-05-02 2004-11-04 Caizza Richard J. Controlled release structure for attaching medical devices
US20040220532A1 (en) * 2003-05-02 2004-11-04 Caizza Richard J. Medical device having releasable retainer
US20090216198A1 (en) * 2008-02-27 2009-08-27 Clifford Salas Syringe needle guide insertion apparatus
US20090312715A1 (en) * 2006-07-11 2009-12-17 Rodney Hal Monson Needle mounting assembly for a medication injection device
US20100217206A1 (en) * 2009-02-24 2010-08-26 Becton, Dickinson And Company Luer-Snap Connection and Luer-Snap Syringe
US20100314796A1 (en) * 2006-08-03 2010-12-16 Becton, Dickinson And Company Syringe and Removable Needle Assembly Having Binary Attachment Features
USD675316S1 (en) 2007-08-22 2013-01-29 Novo Nordisk A/S Needle hub
US20140364813A1 (en) * 2004-12-08 2014-12-11 Roche Diagnostics International Ag Adapter for injection appliance
US8915890B2 (en) 2009-07-30 2014-12-23 Becton, Dickinson And Company Medical device assembly
US20150038911A1 (en) * 2012-01-24 2015-02-05 Nanopass Technologies Ltd Microneedle adapter for dosed drug delivery devices
US20150119811A1 (en) * 2001-12-06 2015-04-30 Dca Design International Limited Medicament cartridge assembly
US9199749B1 (en) 2011-04-26 2015-12-01 Medical Device Engineering, LLC. Assembly and system for connecting a closure to a syringe
US9311592B1 (en) 2012-08-31 2016-04-12 Medical Device Engineering, LLC. Support and closure assembly for discharge port of a syringe and tracking system therefore
US9402967B1 (en) * 2010-05-27 2016-08-02 Medical Device Engineering, Llc Tamper evident cap assembly
US9463310B1 (en) 2010-12-03 2016-10-11 Medical Device Engineering, LLC. Tamper indicating closure assembly
EP3106193A1 (en) * 2015-06-15 2016-12-21 Gerresheimer Regensburg GmbH Safety device for syringes designed to be pre-filled
EP3106191A1 (en) * 2015-06-15 2016-12-21 Gerresheimer Regensburg GmbH Safety device for a syringe
US9821152B1 (en) 2013-03-04 2017-11-21 Medical Device Engineering, LLC. Closure assembly
US9855191B1 (en) 2013-12-09 2018-01-02 Jonathan J. Vitello Tamper evident shield assembly with tracking
US10166347B1 (en) 2014-07-18 2019-01-01 Patrick Vitello Closure assembly for a medical device
US10166343B1 (en) 2015-03-13 2019-01-01 Timothy Brandon Hunt Noise evident tamper cap
US10207099B1 (en) 2014-02-21 2019-02-19 Patrick Vitello Closure assembly for medical fitting
US10300263B1 (en) 2015-02-27 2019-05-28 Timothy Brandon Hunt Closure assembly for a medical connector
US10307548B1 (en) 2016-12-14 2019-06-04 Timothy Brandon Hunt Tracking system and method for medical devices
US10315024B1 (en) 2015-03-19 2019-06-11 Patick Vitello Torque limiting closure assembly
US10758684B1 (en) 2017-03-03 2020-09-01 Jonathan J. Vitello Tamper evident assembly
USD903865S1 (en) 2018-11-19 2020-12-01 International Medical Industries, Inc. Self-righting tip cap
US10888672B1 (en) 2017-04-06 2021-01-12 International Medical Industries, Inc. Tamper evident closure assembly for a medical device
US10898659B1 (en) 2017-05-19 2021-01-26 International Medical Industries Inc. System for handling and dispensing a plurality of products
US10912898B1 (en) 2014-02-03 2021-02-09 Medical Device Engineering Llc Tamper evident cap for medical fitting
US10933202B1 (en) 2017-05-19 2021-03-02 International Medical Industries Inc. Indicator member of low strength resistance for a tamper evident closure
US10953162B1 (en) 2016-12-28 2021-03-23 Timothy Brandon Hunt Tamper evident closure assembly
US11040149B1 (en) 2017-03-30 2021-06-22 International Medical Industries Tamper evident closure assembly for a medical device
US11097071B1 (en) 2016-12-14 2021-08-24 International Medical Industries Inc. Tamper evident assembly
US11278681B1 (en) 2018-02-20 2022-03-22 Robert Banik Tamper evident adaptor closure
USD948713S1 (en) 2019-09-03 2022-04-12 International Medical Industries, Inc. Asymmetrical self righting tip cap
US11357588B1 (en) 2019-11-25 2022-06-14 Patrick Vitello Needle packaging and disposal assembly
US11413406B1 (en) 2018-03-05 2022-08-16 Jonathan J. Vitello Tamper evident assembly
US11426328B1 (en) 2018-08-31 2022-08-30 Alexander Ollmann Closure for a medical container
US11523970B1 (en) 2020-08-28 2022-12-13 Jonathan Vitello Tamper evident shield
US11541180B1 (en) 2017-12-21 2023-01-03 Patrick Vitello Closure assembly having a snap-fit construction
US11690994B1 (en) 2018-07-13 2023-07-04 Robert Banik Modular medical connector
US11697527B1 (en) 2019-09-11 2023-07-11 Logan Hendren Tamper evident closure assembly
US11779520B1 (en) 2018-07-02 2023-10-10 Patrick Vitello Closure for a medical dispenser including a one-piece tip cap
US11793987B1 (en) 2018-07-02 2023-10-24 Patrick Vitello Flex tec closure assembly for a medical dispenser
US11857751B1 (en) 2018-07-02 2024-01-02 International Medical Industries Inc. Assembly for a medical connector
US11872187B1 (en) 2020-12-28 2024-01-16 Jonathan Vitello Tamper evident seal for a vial cover
US11911339B1 (en) 2019-08-15 2024-02-27 Peter Lehel Universal additive port cap
US20240066220A1 (en) * 2021-04-14 2024-02-29 Equashield Medical Ltd Devices for use in drug delivery systems
US12070591B1 (en) 2020-12-14 2024-08-27 Patrick Vitello Snap action tamper evident closure assembly

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US1712070A (en) * 1924-01-30 1929-05-07 Cook Lab Inc Syringe
US2687727A (en) * 1953-01-19 1954-08-31 Becton Dickinson Co Injection device
US2695613A (en) * 1953-02-16 1954-11-30 Macgregor Instr Company Carpule and needle attaching mount therefor

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Publication number Priority date Publication date Assignee Title
US1712070A (en) * 1924-01-30 1929-05-07 Cook Lab Inc Syringe
US1687502A (en) * 1924-04-17 1928-10-16 Ernest H Marcy Collapsible ampul syringe
US2687727A (en) * 1953-01-19 1954-08-31 Becton Dickinson Co Injection device
US2695613A (en) * 1953-02-16 1954-11-30 Macgregor Instr Company Carpule and needle attaching mount therefor

Cited By (97)

* Cited by examiner, † Cited by third party
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