CN109907818A

CN109907818A - A kind of low-temperature plasma hoe scaler surgery systems

Info

Publication number: CN109907818A
Application number: CN201811261996.6A
Authority: CN
Inventors: 周平红; 严航; 郑忠伟
Original assignee: Shanghai Andaxin Medical Devices Co
Current assignee: Shanghai Andaxin Medical Devices Co
Priority date: 2017-10-27
Filing date: 2018-10-27
Publication date: 2019-06-21
Anticipated expiration: 2038-10-27
Also published as: CN210301194U; CN107736932A; CN109907818B

Abstract

The invention discloses a kind of low-temperature plasma hoe scaler surgery systems, the system comprises: the control instruction is simultaneously sent to control unit by input unit, the control instruction for receiving user's input；Control unit, parsing is carried out to the control instruction and generates first mode instruction when the control instruction indicates first mode, it is calculated according to present impedance and the control instruction for the output power under first mode, first mode instruction and first voltage associated with output power instruction is sent to interface unit；First mode instruction and first voltage instruction are transmitted to plasma cell, and receive the present impedance of target contact jaw from plasma cell and the present impedance is sent to control unit by interface unit；Plasma cell is vaporized removing to objective body with the RF energy based on plasma into first mode in response to receiving first mode instruction and first voltage instruction from the interface unit.

Description

A kind of low-temperature plasma hoe scaler surgery systems

Technical field

The present invention relates to radio frequency arts, and more particularly, to a kind of low-temperature plasma hoe scaler surgery systems.

Background technique

With the continuous development of digestive endoscopy technology, the Endoscopic Treatment of disease of digestive tract is also more more and more universal.Under scope Decollement is for treating early gastrointestinal carcinoma under mucous membrane, enables more Alimentary tract diseases disposably bulk under scope Complete resection.Traditional operation treatment risk can be exempted, it is high to have the characteristics that small wound, good effect, surgical technic require.

High frequency removing electric knife is a kind of electrosurgical unit for replacing mechanical operation knife to carry out tissue removing.High frequency removes electric knife Working principle be that the high-frequency high-voltage current generated by active electrode tip heats tissue when contacting with body, realize Separation and solidification to body tissue, to play the purpose of removing and hemostasis.High frequency removes the peak value electricity of electric knife coagulation mode Press it is big compared with cutting mode, when high-frequency current is by the tissue of high impedance, can heat in the tissue, cause tissue to gasify or solidification, Good haemostatic effect is generated, but will also result in more obvious thermal damage simultaneously.High frequency removing electric knife moment stabilization may be up to 150 DEG C or more, the heating effect of the high frequency removing electric knife of tissue can be removed, is not as caused by heating electrode or cutter head.It It is that the high-frequency current of high current density gathers together, directly destroys in the tissue being in contact with active electrode tip.When with When active electrode is in contact or the temperature of adjoining tissue or cell rises to the protein denaturation in cell, removing is just generated And the effect of solidification.

The operating temperature of common high frequency removing electric knife is usually 100~150 DEG C, this operating temperature counterpart tissue still belongs to In high temperature, after histocyte is influenced by this temperature, the histone due to caused by removing is denaturalized.Especially common high frequency removing electricity Knife continues working after a certain period of time, can cause thermal damage to tissue.And histiocytic degeneration necrosis is one and gradually develops Process, common high frequency removing electric knife will appear the reaction such as the swelling of art area, postoperative pain.

In the actual environment, high frequency removing electric knife, which is applied, carries out the diseased region of such as early cancer inside stomach in hospital Complication is easy to produce in decollement, this is because temperature has damage tissue.High frequency removes electric knife, and there are two electrode, an electricity Pole is attached to patient, another electrode is placed on hoe scaler position, and electric pathway is arranged on handle.High-frequency emission temperature Up to 400-500 degree, this temperature can accidentally injure the good tissue in periphery, so that the probability that bleeding problems generate is high, holds Pathological tissue easy to damage.In this case, doctor can not carry out pathological analysis, and cause to when being sliced and arranging effectively analysis Trouble.

Application No. is the utility models of CN201520088201.1 to disclose a kind of flexible mucous membrane hoe scaler, it includes: Handle；Conduit is provided with bending pull chamber and electric knife chamber in conduit, and the head of conduit has drawing bendable portion, and The towing pad being connected with bending pull chamber is provided on the tail end side wall of the drawing bendable portion of conduit；Divide lumen, point One end of lumen is connect with conduit, and the other end is connect with handle, and divide lumen divide chamber with bending pull chamber be connected, divide chamber The main chamber of pipe is connected with electric knife chamber；Traction handle, traction handle be movably attached point lumen divide chamber export on；It leads Draw bending silk, the head end of traction bending silk is connected with the head end of conduit, and traction bending silk is worn on the outside of conduit by towing pad Into the pushrod chamber of conduit and after dividing in the pushrod chamber of lumen, then it connect with traction handle.It can be in removing operation, can be more suitable Benefit finds diseased region, to be operated, does not have to frequent adjustment scope, can also perform the operation well to blind area Operation.

Application No. is the utility models of CN 201520088253.9 to disclose a kind of mucous membrane hoe scaler with push rod, it is wrapped It includes: handle；Conduit is provided with pushrod chamber and electric knife chamber in conduit；Divide lumen, one end of lumen is divided to connect with conduit, it is another End is connect with handle, and that divides lumen divides chamber to be connected with pushrod chamber, and the main chamber of lumen is divided to be connected with electric knife chamber；Push rod Handle, pusher grip be movably connected in point lumen divide chamber export on；Push-rod assembly, push-rod assembly sequentially pass through the push rod of conduit Chamber and after dividing the pushrod chamber of lumen, then connect with pusher grip, the head end of push-rod assembly is provided with push rod；Slip ring, slip ring setting On handle, electrode is provided on slip ring；Cutting knife assembly, cutting knife assembly sequentially pass through the electric knife chamber of conduit and divide lumen Main chamber after, then be electrically connected with the electrode on slip ring, the head end of cutting knife assembly is provided with electric knife.Including the utility model The relatively good visual field can be obtained in mirror removing operation, to avoid because camera lens can not observe the feelings of electric knife removing tissue Condition reduces the risk of operation.

Application No. is the utility models of CN201420542621.8 to disclose a kind of curved handle microsurgery hoe scaler, packet Knife handle and cutter head are included, the lower end of the knife handle is connect by tool apron with the upper end of the cutter head；The upper end of the cutter head with it is described The lower end of tool apron is fixedly connected, and the upper end of the tool apron and the lower end of the knife handle are connected together；The upper holding section and described Straight line intersection where straight line where lower holding section and the cutter head forms the first angle；The knife handle is divided into button section and handle tail Section, the button section are in plate shape item, and it is smooth excessiveness between the button section and the handle endpiece that the handle endpiece, which is in long cylinder, It connects and forms the second angle.The curved handle microsurgery hoe scaler of the utility model is not only convenient for disassembly and assembly, moreover, being easy clear Wash clean can also change the angle of cutter head.

However, above-mentioned hoe scaler not can avoid temperature it is excessively high caused by accidentally injure problem, and cutter head and conduit are entering Can not take advantage of a situation deformation during human body according to the shape of cavity, bring great inconvenience for surgical procedure.

Summary of the invention

According to an aspect of the present invention, a kind of low-temperature plasma hoe scaler surgery systems are provided, the system comprises:

Input unit receives the control instruction of user's input and the control instruction is sent to control unit；

Control unit carries out parsing to the control instruction and generates the when the control instruction indicates first mode One mode instruction is calculated according to present impedance and the control instruction for the output power under first mode, by first mode Instruction and first voltage associated with the output power under first mode instruction are sent to interface unit；

Interface unit receives first mode instruction and first voltage instruction from described control unit, and by described first Mode instruction and first voltage instruction are transmitted to plasma cell, and the current resistance of target contact jaw is received from plasma cell Resist and the present impedance is sent to described control unit；

Plasma cell, in response to receiving first mode instruction from the interface unit and first voltage indicates, into the One mode: it is carried out between the emission electrode and loop electrode at the target contact jaw of the plasma cell by conducting medium Circuit activation applies first voltage to form thin layer between emission electrode and loop electrode, so that the conducting medium reaches First temperature and it is converted into plasmasphere, so that plasma is generated using electric energy excitation conducting medium, and based on etc. The RF energy of gas ions is vaporized removing to objective body；

The wherein emission electrode, plasmasphere, loop electrode and target contact jaw forming circuit.

It further include that described control unit parse and when the control instruction indicates the second mould to the control instruction Second mode instruction is generated when formula, is calculated according to present impedance and the control instruction for the output power under second mode, Second mode instruction and second voltage associated with the output power under second mode instruction are sent to interface list Member.

The interface unit receives second mode instruction and second voltage instruction from described control unit, and by described the Two modes instruction and second voltage instruction are transmitted to plasma cell.

In response to entering the from received second instruction of the interface unit and second voltage instruction, the plasma cell Two modes: apply second voltage the target contact jaw of the plasma cell is remained second temperature, thus by objective body Carry out ablation solidification.

It further include alarm unit, for passing through auditory tone cues, text prompt and/or instruction when receiving alarm signal Lamp, which is shown, alarms；

Alarm signal wherein is sent to control unit after the plasma cell detects operation troubles, the control is single Alarm signal is sent to the alarm unit by member.

The input unit is foot-operated input equipment, and wherein user is by operating the foot-operated input equipment The control instruction is generated, wherein the control instruction is binary group<mode, power>.

Further include dropping liquid input unit, instructs for the conducting medium input based on described control unit to plasma cell The conducting medium is inputted, wherein working as described in the current surplus of conducting medium described in the plasma cell real-time measurement and general Preceding surplus is sent to control unit, and described control unit is based on the current surplus and determines whether to generate the conducting medium input It instructs and conducting medium input instruction is sent to dropping liquid input after the conducting medium input instructs determining to generate Unit.

It further include display unit, the operating status for low-temperature plasma hoe scaler surgery systems described in real-time display.

The range of the first voltage be 100Vrms to 300Vrms, and the range of the second voltage be 60Vrms extremely 80Vrms。

The range of first temperature is 35 DEG C -40 DEG C, and the range of the second temperature is 40 DEG C -70 DEG C, and

In the flrst mode, thermal break-through distance is less than or equal to 150 microns, and under the second mode, thermal break-through distance Less than or equal to 200 microns.

There was only 40-70 degree according to the temperature of the work of the low-temperature plasma hoe scaler surgery systems of the application and method, from And it solves the problems, such as the accidental injury to periphery good organization, bleeding problems and reduces complication.In addition, low temperature of the application etc. from Bipolar fashion is used on sub- hoe scaler surgery systems and method structure, is directly formed into a loop on conduit.

Detailed description of the invention

By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by:

Fig. 1 is the major part schematic diagram according to the plasma therapeutic apparatus of the preferred embodiment for the present invention；

Fig. 2 is the structural schematic diagram according to the plasma therapeutic apparatus of the preferred embodiment for the present invention；

Fig. 3 is the structural schematic diagram according to the low-temperature plasma hoe scaler surgery systems of the preferred embodiment for the present invention；

Fig. 4 is the flow chart according to the low-temperature plasma hoe scaler operation method of the preferred embodiment for the present invention；

Fig. 5 is the structural schematic diagram according to the low-temperature plasma hoe scaler surgical apparatus of the preferred embodiment for the present invention；With And

Fig. 6-8 is the partial enlargement according to the low-temperature plasma hoe scaler surgical apparatus of the preferred embodiment for the present invention or cuts Face schematic diagram；

Fig. 9 is the side view of the hoe scaler of seal assembly according to the present invention；

Figure 10 is the partial enlarged view of the circle A in Fig. 9, and wherein seal assembly is dismantled from the hoe scaler；

Figure 11 is the exploded partial perspective view of the circle A in Fig. 9, and wherein seal assembly is dismantled from the hoe scaler；

Figure 12 is the longitdinal cross-section diagram for being partially stripped knife；And

Figure 13 is the cross-sectional view along the line I-I interception in Fig. 9；

Figure 14 is the schematic diagram of the hoe scaler according to the present invention with anti-rotation device；

Figure 15 is the cross-sectional view along the line I-I interception in Figure 14；

The sectional perspective of part A in Figure 14 of Figure 16 hoe scaler according to the present invention with anti-rotation device is decomposed Figure；

Figure 17 is vertical for the partial enlargement that electrode tip holder, emission electrode and square bushing are located at the state in the fluid-through chamber of pipe sheath Body figure；

Figure 18 is the amplification sectional view at position where anti-rotation device；

Figure 19 is the side view of the snare according to the present invention with helical structure；

Figure 20 is the longitudinal sectional view in the circle A in Figure 19 of the snare according to the present invention with helical structure；

Figure 21 is the partial enlarged view near helical structure；

Figure 22 is the sectional view along the line I-I interception in Figure 19.

Specific embodiment

Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this specification Revealed content is understood other advantages and efficacy of the present invention easily.

Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached Icon note.

Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.

Fig. 1 is the functional schematic according to the plasma therapeutic apparatus 100 of the preferred embodiment for the present invention.Plasma therapeutic apparatus 100 can be used in removing, ablation and the solidification and hemostasis of the diseased region of such as early cancer inside stomach.In addition, plasma is controlled Treating instrument 100 can also be used to the removing, ablation of soft tissue in the surgical operations such as joint, backbone, skin, ear nose larynx, solidification and stops Blood.The plasma therapeutic apparatus 100 of the application using the time be 24 hours within, according to time of contact classification belong to brought into temporary contact, Belong to external access instrument (with tissue/bone/dentine) according to contact human body qualitative classification and according to medical instrument structure spy Sign classification belongs to active medical instrument.Attachment bipolar operation electrode (hoe scaler) head of plasma therapeutic apparatus 100 belongs to disposably Sterile product.

Plasma therapeutic apparatus 100 uses bipolar scheme, and its working frequency is 110kHz.Plasma therapeutic apparatus 100 is logical Cross removing, ablation, solidification and hemostasis of the plasma technology realization to soft tissue in the operation such as ear nose larynx.When work, plasma is controlled Instrument 100 is treated by physiological saline as conduction liquid, forms a thin layer when activating between emission electrode and loop electrode.When it is equal from When sub- therapeutic equipment 100 gives enough energy (voltage), physiological saline translates into the gas being made of charged particle of energizing Body layer (plasmasphere).That is, plasma therapeutic apparatus 100 using energy excitation conducting medium (for example, physiological saline) generate etc. from Daughter, and tissue element key is interrupted by the energy of plasma.The energy of plasma is by protein and other Direct Pyrolysis is at O², CO², N²Equal gases, so that the vaporization completed to tissue is removed.When the work to plasma therapeutic apparatus 100 When cutter head gives low-voltage, electric field requires lower than the thresholding for generating plasmasphere and generates tissue resistance heat, thus by tissue Carry out ablation solidification and hemostasis.

As shown in Figure 1, the functional architecture of plasma therapeutic apparatus 100 includes: primary control program, alarm unit, interface list Member, output control unit, bipolar operation electrode (hoe scaler) interface, bipolar operation electrode (hoe scaler), floor push, foot control connect Mouth, dropping liquid control valve and dropping liquid control valve interface.Wherein, primary control program, alarm unit, boundary element, output control, are bipolar Procedures electrode interface, foot control interface and dropping liquid control valve interface belong to the software section of plasma therapeutic apparatus 100.Plasma is controlled The function introduction for treating the section components of instrument 100 is as shown in table 1,

The function introduction of 1 section components of table

Preferably, floor push can control the operating mode of plasma therapeutic apparatus 100.The work of plasma therapeutic apparatus 100 Operation mode is divided into separation mode and coagulation mode.The waterproofing grade of floor push is waterproofing grade standard IPX8, and rides and open Close is that electric pedal switchs.

Preferably, the yellow pedal of floor push corresponds to separation mode, and the gear range of separation mode is 1 to 9 Shelves.That is, plasma therapeutic apparatus 100 enters separation mode when trampling the yellow pedal of floor push.The gear tune of separation mode Section mode are as follows: (or manually adjusted on host panel yellow in the state of being adjusted to separation mode by dark buttons on floor push Color button) it is adjusted.Removing gear can choose any one shelves in from 1 to 9 grade.Wherein, gear is higher, output voltage It is bigger.In separation mode, 1 to 9 grade of output voltage is as shown in table 2:

Output gear in 2 separation mode of table

Preferably, the blue pedal of floor push corresponds to coagulation mode, and the gear range of coagulation mode is 1 to 5 Shelves.That is, plasma therapeutic apparatus 100 enters coagulation mode when trampling the blue pedal of floor push.The gear tune of coagulation mode Section mode are as follows: (separation mode and coagulation mode can be switched by mode key) by blue pedal in the state of being adjusted to coagulation mode Upper dark buttons (or manually adjusting host panel blue buttons up and down) are adjusted.When foot-operated dark buttons, blood coagulation gear can To select any one shelves in from 1 to 5 grade, middle gear more high output voltage is bigger.When needing to carry out blood coagulation in clinical use When, it depresses blue pedal and carries out blood coagulation.In coagulation mode, 1 to 5 grade of output voltage is as shown in table 3:

Output gear in 3 coagulation mode of table

Preferably, foot control interface is used to receive the control instruction of floor push, and the control instruction is transmitted to master Control program.Wherein, control instruction be binary group<mode, power>.Mode includes: separation mode and coagulation mode.In removing mould In formula, power includes 9 gears, and in coagulation mode, and power includes 5 gears.

Preferably, primary control program carries out parsing to the control instruction and when the control instruction indicates first mode First mode instruction is generated, is calculated according to present impedance and the control instruction for the output power under first mode, by the It is single that one mode instruction and first voltage associated with the output power under first mode instruction are sent to output control Member.Wherein, initial present impedance is zero, i.e., when the booting of plasma therapeutic apparatus 100 is operated, the present impedance of default is Zero.The primary control program carries out parsing to the control instruction and generates second when the control instruction indicates second mode Mode instruction calculates for the output power under second mode according to present impedance and the control instruction, second mode is referred to It enables and second voltage associated with the output power under second mode instruction is sent to output control unit.Wherein institute Stating present impedance includes high impedance, middle impedance and Low ESR (0 impedance is Low ESR).Preferably, according to present impedance and described If it is high impedance and the control instruction that control instruction calculating, which includes: present impedance for the output power under first mode, It indicates the 2nd grade under first mode, then sets the 4th grade for the output power under first mode；If present impedance is middle resistance The 2nd grade under the anti-and described control instruction instruction first mode, then the 3rd grade is set by the output power under first mode； It, will be under first mode and if present impedance is Low ESR and the control instruction indicates the 2nd grade under first mode Output power be set as the 2nd grade.Preferably, it is calculated according to present impedance and the control instruction for defeated under second mode If it is that high impedance and the control instruction indicate the 2nd grade under second mode that power, which includes: present impedance, out, by the Output power under two modes is set as the 4th grade；If present impedance is middle impedance and the control instruction indicates the second mould The 2nd grade under formula, then the 3rd grade is set by the output power under second mode；And if present impedance be Low ESR and The 2nd grade under the control instruction instruction second mode, then the 2nd grade is set by the output power under second mode.Preferably, When the output power being calculated is more than the highest gear in first mode or second mode, using highest gear as reality Output power.

Preferably, output control unit is used to receive first mode instruction and first voltage instruction from the primary control program, And first mode instruction and first voltage instruction are transmitted to bipolar operation electrode interface, and from bipolar operation electrode The present impedance of interface target contact jaw and the present impedance is sent to the primary control program.And the output Control unit from the primary control program receive second mode instruction and second voltage instruction, and by the second mode instruction and Second voltage instruction is transmitted to bipolar operation electrode interface.

Preferably, bipolar operation electrode interface is used to receive the power indication of primary control program and sends out the power indication Bipolar operation electrode is given, and the real-time impedance of bipolar operation electrode is measured and is passed through the real-time impedance defeated Control unit passes to primary control program out.

Preferably, bipolar operation electrode from the bipolar operation electrode interface first mode in response to instructing and first Voltage instruction, into first mode: passing through emission electrode of the conducting medium at the target contact jaw of the bipolar operation electrode Circuit activation is carried out between loop electrode to form thin layer, applies first voltage between emission electrode and loop electrode, make It obtains the conducting medium to reach the first temperature and be converted into plasmasphere, to utilize electric energy excitation conducting medium generation etc. Gas ions, and removing is vaporized to objective body based on the RF energy of plasma.In response to electric from the bipolar surgery Second instruction of pole interface and second voltage instruction, the bipolar operation electrode enter second mode: applying second voltage The target contact jaw of the bipolar operation electrode is remained second temperature, so that objective body is carried out ablation solidification.

Preferably, alarm unit is used for when receiving alarm signal, passes through auditory tone cues, text prompt and/or instruction Lamp, which is shown, alarms.Alarm signal wherein is sent to primary control program after the bipolar operation electrode detects operation troubles, Alarm signal is sent to the alarm unit by the primary control program.

Preferably, boundary element, the operating status for low-temperature plasma hoe scaler surgery systems described in real-time display.

Preferably, dropping liquid control valve is instructed for the conducting medium input based on the primary control program to bipolar operation electrode The conducting medium is inputted, wherein the current surplus of conducting medium described in the bipolar operation electrode real-time measurement and will be described Current surplus is sent to primary control program, the primary control program be based on the current surplus determine whether to generate the conducting medium it is defeated Enter instruction and conducting medium input instruction is sent to dropping liquid control after the conducting medium input instructs determining to generate Valve processed.Preferably, dropping liquid control valve interface is for realizing the two-way communication between dropping liquid control valve and primary control program.

Preferably, the emission electrode at bipolar operation electrode tip catheter, plasmasphere, loop electrode and target contact End forming circuit.In separation mode, the operating temperature of bipolar operation electrode is 35 to 40 DEG C, and the work of conventional electrosurgical knife Temperature is 350 to 700 DEG C.The thermal break-through distance of bipolar operation electrode than the thermal break-through of conventional electrosurgical knife apart from small, wherein shelling The thermal break-through distance being less than or equal in 150 microns and coagulation mode with a distance from the thermal break-through in mode is less than or equal to 200 Micron, and the thermal break-through of conventional electrosurgical knife distance is greater than 9000 microns.

100 working principle of plasma therapeutic apparatus is effect of plasma radiofrequency ablation at low temperature.Energy is generated using bipolar cutter head, will be given birth to Reason salt water is converted into plasma thin layer, dissociates the molecular link that cell component is constituted in target tissue, causes tissue coagulation downright bad, Form the effect of ablation or removing.Due to working at relatively low temperature, electric knife is removed to week than the high frequency that tradition uses The thermal damage of side texture is minimized degree.Target volume can be made to reduce in 35 DEG C or so operating temperatures, it is micro- in target tissue Vessel closure cuts off lesion.Its low temperature and tissue volume reduction Ablation characteristic, more common Single-pole electric knife is with more shortening post-operative recovery Time mitigates the advantages of postoperative pain and reduction expenses of surgical treatment.Wherein, plasma therapeutic apparatus and common high frequency remove electric knife Temperature it is more as shown in table 4:

Table 4

Cutter head ambient temperature (is detailed in isolated experiment research tissue thermal damage to report plasma therapeutic apparatus lower than 70 DEG C at work Accuse), operating temperature is lower compared with traditional common high frequency removing electric knife (100~150 DEG C of high temperature), although low temperature etc. The treatment temperature counterpart tissue of ion knife still falls within high temperature, after histocyte is influenced by this temperature, equally will appear electric knife stripping From causing histone to be denaturalized, especially after certain time, can also thermal damage be caused to tissue.And histiocytic denaturation Necrosis is the process gradually developed, therefore after the operation of some patientss row low-temperature plasma, the swelling of art area, postoperative pain etc. are anti- Electric knife response light should be removed unlike high frequency.Compared with damage thermal damage's depth of plasma therapeutic apparatus and common high frequency removing electric knife as Shown in the following table 5:

Table 5

	Thermal damage's depth when removing	Thermal damage's depth when blood coagulation
			Plasma therapeutic apparatus	150 microns of average value	200 microns of average value
High frequency removes electric knife	1.23±0.24mm	1.37±0.26mm

Since each operating time has differences so plasma therapeutic apparatus is in isolated experiment research tissue thermal damage report In selected maximum operating time, removed by the plasma therapeutic apparatus and the high frequency of normal use that compare visible maximum operating time Electric knife heat waste depth.Therefore the heat waste depth of the plasma therapeutic apparatus of normal use should remove electric knife heat waste depth lower than high frequency.

Fig. 2 is the major part schematic diagram according to the plasma therapeutic apparatus 200 of the preferred embodiment for the present invention.Such as Fig. 2 institute Show, the major part of plasma therapeutic apparatus 200 includes: bipolar operation electrode interface 201, dropping liquid control valve interface 202, tramples Switch interface 203, display screen 204, mainboard 205, loudspeaker 206, front panel 207, trouble lamp 208, lower die 209, upper mold 210, power module 211, dropping liquid control valve 212 and fan 213.

Preferably, trample switch interface 203 is used to receive the instruction of floor push, floor push and can control etc. from The operating mode of sub- therapeutic equipment 200.The operating mode of plasma therapeutic apparatus 200 is divided into separation mode and coagulation mode.It is foot-operated to open The waterproofing grade of pass is waterproofing grade standard IPX8, and floor push is electric pedal switch.

Preferably, the yellow pedal of floor push corresponds to separation mode, and the gear range of separation mode is 1 to 9 Shelves.That is, plasma therapeutic apparatus 200 enters separation mode when trampling the yellow pedal of floor push.The gear tune of separation mode Section mode are as follows: (or manually adjusted on host panel yellow in the state of being adjusted to separation mode by dark buttons on floor push Color button) it is adjusted.Removing gear can choose any one shelves in from 1 to 9 grade.Wherein, gear is higher, and output voltage is got over Greatly.

Preferably, the blue pedal of floor push corresponds to coagulation mode, and the gear range of coagulation mode is 1 to 5 Shelves.That is, plasma therapeutic apparatus 200 enters coagulation mode when trampling the blue pedal of floor push.The gear tune of coagulation mode Section mode are as follows: (separation mode and coagulation mode can be switched by mode key) by blue pedal in the state of being adjusted to coagulation mode Upper dark buttons (or manually adjusting host panel blue buttons up and down) are adjusted.When foot-operated dark buttons, blood coagulation gear can To select any one shelves in from 1 to 5 grade, middle gear more high output voltage is bigger.When needing to carry out blood coagulation in clinical use When, it depresses blue pedal and carries out blood coagulation.

Preferably, trample switch interface 203 is used to receive the control instruction of floor push, and the control instruction is turned Issue primary control program.Wherein, control instruction be binary group<mode, power>.Mode includes: separation mode and coagulation mode.? In separation mode, power includes 9 gears, and in coagulation mode, and power includes 5 gears.

Preferably, mainboard 205 stores primary control program in the firmware for accommodating firmware.Wherein, primary control program is to described Control instruction carries out parsing and generates first mode instruction when the control instruction indicates first mode, according to present impedance Calculate with the control instruction for the output power under first mode, by first mode instruct and under the first mode Output power associated first voltage instruction be sent to output control unit.Wherein, initial present impedance is zero, that is, is existed When the booting of plasma therapeutic apparatus 200 is operated, the present impedance of default is zero.The primary control program to the control instruction into Row parsing and the generation second mode instruction when the control instruction indicates second mode, according to present impedance and the control Instruction is calculated for the output power under second mode, by second mode instruct and with the output power under the second mode Associated second voltage instruction is sent to output control unit.Wherein the present impedance includes high impedance, middle impedance and low Impedance (0 impedance is Low ESR).Preferably, it is calculated according to present impedance and the control instruction for defeated under first mode If power includes: present impedance for high impedance out and the control instruction indicates the 2nd grade under first mode, by first Output power under mode is set as the 4th grade；If present impedance is middle impedance and the control instruction indicates first mode Under the 2nd grade, then set the 3rd grade for the output power under first mode；And if present impedance is Low ESR and institute The 2nd grade under control instruction instruction first mode is stated, then sets the 2nd grade for the output power under first mode.Preferably, root If including: present impedance for the output power under second mode according to present impedance and control instruction calculating is high impedance And, then the 4th grade is set by the output power under second mode by the 2nd grade under the control instruction instruction second mode；Such as Fruit present impedance is middle impedance and the control instruction indicates the 2nd grade under second mode, then by the output under second mode Power setting is the 3rd grade；And if present impedance is Low ESR and the control instruction indicates the 2nd under second mode Shelves, then set the 2nd grade for the output power under second mode.Preferably, when the output power being calculated is more than first When highest gear in mode or second mode, using highest gear as real output.

Preferably, output control unit (being not shown in Fig. 2) be used for from the primary control program receive first mode instruction and First voltage instruction, and first mode instruction and first voltage instruction are transmitted to bipolar operation electrode interface 201, with And the present impedance of target contact jaw is received from bipolar operation electrode interface 201 and the present impedance is sent to the master Control program.And the output control unit receives second mode instruction and second voltage instruction from the primary control program, and Second mode instruction and second voltage instruction are transmitted to bipolar operation electrode interface 201.

Preferably, bipolar operation electrode interface 201 is used to receive the power indication of primary control program and refers to the power Show and be sent to bipolar operation electrode, and the real-time impedance of bipolar operation electrode is measured and leads to the real-time impedance It crosses output control unit and passes to primary control program.

Preferably, bipolar operation electrode (not shown) is in response to receiving the from the bipolar operation electrode interface 201 One mode instruction and first voltage instruction, connect into first mode: the target by conducting medium in the bipolar operation electrode Circuit activation is carried out between emission electrode and loop electrode at contravention to form thin layer, between emission electrode and loop electrode Apply first voltage, so that the conducting medium reaches the first temperature and is converted into plasmasphere, to swash using electric energy It sends out conducting medium and generates plasma, and removing is vaporized to objective body based on the RF energy of plasma.In response to From the bipolar operation electrode interface 201 received second instruction and second voltage instruction, the bipolar operation electrode enters the Two modes: apply second voltage the target contact jaw of the bipolar operation electrode is remained second temperature, thus by target Body carries out ablation solidification.

Preferably, trouble lamp 208 is used for when receiving alarm signal, is shown and is alarmed by indicator light.Its In after the bipolar operation electrode detects operation troubles to primary control program send alarm signal, the primary control program will alarm Signal is sent to the trouble lamp 208.Loudspeaker 206 are used for when receiving alarm signal, are alarmed by sound.Its In after the bipolar operation electrode detects operation troubles to primary control program send alarm signal, the primary control program will alarm Signal is sent to the loudspeaker 206.

Preferably, operating status of the display screen 204 for low-temperature plasma hoe scaler surgery systems described in real-time display.

Preferably, dropping liquid control valve 212 is instructed for the conducting medium input based on the primary control program to bipolar surgery Electrode inputs the conducting medium, wherein the current surplus of conducting medium described in the bipolar operation electrode real-time measurement and general The current surplus is sent to primary control program, and the primary control program is based on the current surplus and determines whether to generate conductive Jie Matter input, which instructs and the conducting medium is inputted instruction after determining the generation conducting medium input instruction, is sent to drop Hydraulic control valve 212.Preferably, dropping liquid control valve interface 202 is for realizing double between dropping liquid control valve 212 and primary control program To communication.

Preferably, the application uses double mode liquid outlet: 1, titration mode, i.e., a drop as the mode of infusion The supply of one drop；And 2, continuous supply model, i.e., the mode of liquid flow without interruption.Bipolar operation electrode interface (hoe scaler Interface) it is connect by patch with the bipolar electrode socket connector (hoe scaler connector) of Fig. 5 as described below, dropping liquid control valve connects Mouth is connected by the fluid-through chamber of connecting tube and Fig. 5.Floor push mouth is connect by connecting line with external foot pedal, for controlling The supply and disconnection of energy and dropping liquid.When foot pedal is stepped on, energy and dropping liquid supply；When foot pedal unclamps, energy and drop Liquid disconnects.

Preferably, upper mold 210 and lower die 209 protect mainboard by way of combination.Fan 213 is used to radiate, and Power module 211 is used to provide electric power for plasma therapeutic apparatus 200.Front panel 207 is for displaying data and operating control.

Fig. 3 is the structural schematic diagram according to the low-temperature plasma hoe scaler surgery systems 300 of the preferred embodiment for the present invention. Low-temperature plasma hoe scaler surgery systems 300 can be used in the removing of the diseased region of such as early cancer inside stomach, ablation and Solidification and hemostasis.In addition, low-temperature plasma hoe scaler surgery systems 300 can also be used to joint, backbone, skin, ear nose larynx etc. Removing, ablation, solidification and the hemostasis of soft tissue in surgical operation.The low-temperature plasma hoe scaler surgery systems 300 of the application make With the time be 24 hours within, according to time of contact classification belong to brought into temporary contact, according to contact human body qualitative classification belong to outside It accesses instrument (with tissue/bone/dentine) and belongs to active medical instrument according to the classification of medical instrument structure feature.

Low-temperature plasma hoe scaler surgery systems 300 use bipolar scheme, and its working frequency is 110kHz.Low temperature etc. Ion hoe scaler surgery systems 300 realize removing, ablation, the solidification to soft tissue in the operation such as ear nose larynx by plasma technology With hemostasis.When work, low-temperature plasma hoe scaler surgery systems 300, as conduction liquid, activate emission electrode by physiological saline A thin layer is formed when between loop electrode.When low-temperature plasma hoe scaler surgery systems 300 give enough energy (electricity Pressure) when, physiological saline translates into the gas blanket being made of charged particle of energizing (plasmasphere).That is, low-temperature plasma Hoe scaler surgery systems 300 using energy excitation conducting medium (for example, physiological saline) generate plasma, and by etc. from The energy of daughter interrupts tissue element key.The energy of plasma is by protein and other Direct Pyrolysis at O², CO², N²Equal gases, so that the vaporization completed to tissue is removed.When the work cutter head to plasma therapeutic apparatus 100 gives low-voltage, Electric field is lower than the thresholding requirement for generating plasmasphere and generates tissue resistance heat, so that tissue is carried out ablation solidification and is stopped Blood.

As shown in figure 3, low-temperature plasma hoe scaler surgery systems 300 include: input unit 301, control unit 302, connect Mouth unit 303, plasma cell 304, alarm unit 305, dropping liquid input unit 306 and display unit 307.Preferably, defeated Entering unit 301 is, for example, floor push, and floor push can control 300 Working mould of low-temperature plasma hoe scaler surgery systems Formula.The operating mode of low-temperature plasma hoe scaler surgery systems 300 is divided into separation mode and coagulation mode.The waterproof of floor push Grade is waterproofing grade standard IPX8, and floor push is electric pedal switch.

Preferably, the yellow pedal of floor push corresponds to separation mode, and the gear range of separation mode is 1 to 9 Shelves.That is, low-temperature plasma hoe scaler surgery systems 300 enter separation mode when trampling the yellow pedal of floor push.Removing The gear regulative mode of mode are as follows: (or manually adjusted in the state of being adjusted to separation mode by dark buttons on floor push Yellow button on host panel) it is adjusted.Removing gear can choose any one shelves in from 1 to 9 grade.Wherein, gear is got over Height, output voltage are bigger.

Preferably, the blue pedal of floor push corresponds to coagulation mode, and the gear range of coagulation mode is 1 to 5 Shelves.That is, low-temperature plasma hoe scaler surgery systems 300 enter coagulation mode when trampling the blue pedal of floor push.Blood coagulation The gear regulative mode of mode are as follows: (separation mode and blood coagulation mould can be switched by mode key in the state of being adjusted to coagulation mode Formula) it is adjusted by dark buttons on blue pedal (or manually adjusting host panel blue buttons up and down).Foot-operated dark buttons When, blood coagulation gear can choose any one shelves in from 1 to 5 grade, and middle gear more high output voltage is bigger.When clinical use kind When needing to carry out blood coagulation, depresses blue pedal and carry out blood coagulation.

Preferably, control unit 302 parse and when the control instruction indicates the first mould to the control instruction First mode instruction is generated when formula, is calculated according to present impedance and the control instruction for the output power under first mode, First mode instruction and first voltage associated with the output power under first mode instruction are sent to interface list Member 303.Wherein, initial present impedance is zero, i.e., when the booting of low-temperature plasma hoe scaler surgery systems 300 is operated, The present impedance of default is zero.Described control unit 302 parse and when the control instruction refers to the control instruction Second mode instruction is generated when showing second mode, is calculated according to present impedance and the control instruction for defeated under second mode Second mode instruction and second voltage associated with the output power under second mode instruction are sent to by power out Interface unit 303.Wherein the present impedance includes high impedance, middle impedance and Low ESR (0 impedance is Low ESR).Preferably, If including: present impedance for the output power under first mode according to present impedance and control instruction calculating is high resistant The 2nd grade under the anti-and described control instruction instruction first mode, then the 4th grade is set by the output power under first mode； If present impedance is middle impedance and the control instruction indicates the 2nd grade under first mode, will be defeated under first mode Power setting is the 3rd grade out；And if present impedance is Low ESR and the control instruction indicates the 2nd under first mode Shelves, then set the 2nd grade for the output power under first mode.Preferably, it is calculated according to present impedance and the control instruction If including: present impedance for the output power under second mode is high impedance and control instruction instruction second mode Under the 2nd grade, then set the 4th grade for the output power under second mode；If present impedance is middle impedance and the control The 2nd grade under system instruction instruction second mode, then the 3rd grade is set by the output power under second mode；And it is if current Impedance is Low ESR and the control instruction indicates the 2nd grade under second mode, then sets the output power under second mode It is set to the 2nd grade.Preferably, when the output power being calculated is more than the highest gear in first mode or second mode, Using highest gear as real output.

Preferably, interface unit 303 is used to receive first mode instruction from described control unit 302 and first voltage refers to Show, and first mode instruction and first voltage instruction are transmitted to plasma cell 304, and from plasma cell 304 receive the present impedance of target contact jaws and the present impedance are sent to described control unit 302.And it described connects Mouth unit 303 receives second mode instruction and second voltage instruction from described control unit 302, and the second mode is referred to It enables and second voltage instruction is transmitted to plasma cell 304.

Preferably, interface unit 303 is used for the power indication of reception control unit 302 and sends the power indication To plasma cell 304, and the real-time impedance of plasma cell 304 is measured and by the real-time impedance by connecing Mouth unit 303 passes to control unit 302.

Preferably, plasma cell 304 is in response to receiving first mode instruction and the first electricity from the plasma cell 304 Pressure instruction, into first mode: by emission electrode of the conducting medium at the target contact jaw of the plasma cell 304 and Circuit activation is carried out between loop electrode to form thin layer, applies first voltage between emission electrode and loop electrode, so that The conducting medium reaches the first temperature and is converted into plasmasphere, thus using electric energy excitation conducting medium generate etc. from Daughter, and removing is vaporized to objective body based on the RF energy of plasma.In response to from the plasma cell 304 Received second instruction and second voltage instruction, the plasma cell 304 enter second mode: applying second voltage with by institute The target contact jaw for stating plasma cell 304 remains second temperature, so that objective body is carried out ablation solidification.

Preferably, alarm unit 305 is used for when receiving alarm signal, by auditory tone cues, text prompt and/or is referred to Show that lamp is shown to alarm.It wherein sends and alarms to control unit 302 after the plasma cell 304 detects operation troubles Alarm signal is sent to the alarm unit 305 by signal, described control unit 302.

Preferably, dropping liquid input unit 306 for the conducting medium input instruction based on described control unit 302 to it is equal from Subelement 304 inputs the conducting medium, wherein the current surplus of conducting medium described in 304 real-time measurement of the plasma cell And the current surplus is sent to control unit 302, described control unit 302 is based on the current surplus and determines whether to give birth to Instruction is inputted at the conducting medium and inputs the conducting medium after the conducting medium inputs instruction determining to generate Instruction is sent to dropping liquid input unit 306.

Preferably, emission electrode, plasmasphere, loop electrode and the target at 304 tip catheter of plasma cell connect Contravention forming circuit.In separation mode, the operating temperature of plasma cell 304 is 35 to 40 DEG C, and conventional electrosurgical knife Operating temperature is 350 to 700 DEG C.The thermal break-through distance of plasma cell 304 than the thermal break-through of conventional electrosurgical knife apart from small, The thermal break-through distance that thermal break-through distance in middle separation mode is less than or equal in 150 microns and coagulation mode is less than or waits In 200 microns, and the thermal break-through of conventional electrosurgical knife distance is greater than 9000 microns.

Preferably, display unit 307, the operation shape for low-temperature plasma hoe scaler surgery systems described in real-time display State.300 working principle of low-temperature plasma hoe scaler surgery systems is effect of plasma radiofrequency ablation at low temperature.Energy is generated using bipolar cutter head Physiological saline is converted into plasma thin layer by amount, is dissociated the molecular link for constituting cell component in target tissue, is caused tissue coagulation Property necrosis, formed ablation or removing effect.It is more electric than the high frequency removing that tradition uses due to working at relatively low temperature Knife is minimized degree to the thermal damage of perienchyma.Target volume can be made to reduce in 35 DEG C or so operating temperatures, target tissue In capilary closing, cut off lesion.Its low temperature and tissue volume reduction Ablation characteristic, more common Single-pole electric knife have more desmopyknosis Afterwards the advantages of recovery time, mitigation postoperative pain and reduction expenses of surgical treatment.Low-temperature plasma hoe scaler surgery systems 300 exist Lower than 70 DEG C of cutter head ambient temperature (are detailed in isolated experiment research tissue thermal damage report) when work, and it is traditional common High frequency removing electric knife (100~150 DEG C of high temperature) is lower compared to operating temperature, although the treatment temperature of low temperature-controlled plasma radio-frequency ablation is opposite People's tissue still falls within high temperature, after histocyte is influenced by this temperature, equally will appear electric knife removing and histone is caused to be denaturalized, especially After it is certain time, can also thermal damage be caused to tissue.And histiocytic degeneration necrosis is one and gradually develops Process, therefore after the operation of some patientss row low-temperature plasma, the reaction such as the swelling of art area, postoperative pain is anti-unlike high frequency removing electric knife It should be light.Since each operating time has differences so plasma therapeutic apparatus selects in isolated experiment research tissue thermal damage report With maximum operating time, electric knife is removed by the plasma therapeutic apparatus of the visible maximum operating time of comparison and the high frequency of normal use Heat waste depth.Therefore the heat waste depth of the plasma therapeutic apparatus of normal use should remove electric knife heat waste depth lower than high frequency.

Fig. 4 is the flow chart according to the low-temperature plasma hoe scaler operation method 400 of the preferred embodiment for the present invention.Such as figure Shown in 4, method 400 is since step 401 place.In step 401, the control instruction of user's input is received.

In step 402, parsing and the generation when the control instruction indicates first mode are carried out to the control instruction First mode instruction, calculates according to present impedance and the control instruction for the output power under first mode.

In step 403, first voltage instruction associated with the output power under the first mode is determined.

In step 404, first mode instruction and first voltage instruction are transmitted to plasma apparatus, and from described The present impedance of plasma apparatus reception target contact jaw.

In step 405, indicated in response to receiving first mode instruction and first voltage, promote the plasma apparatus into Enter first mode: by conducting medium between the emission electrode and loop electrode of the target contact jaw of the plasma cell into Row Circuit activation applies first voltage to form thin layer between emission electrode and loop electrode, so that the conducting medium reaches To the first temperature and it is converted into plasmasphere, to generate plasma using electric energy excitation conducting medium, and is based on The RF energy of plasma is vaporized removing to objective body；

It further include carrying out parsing to the control instruction and generating second when the control instruction indicates second mode Mode instruction is calculated according to present impedance and the control instruction for the output power under second mode, and determining and institute State the associated second voltage instruction of output power under second mode.Second mode instruction and second voltage instruction are turned Issue plasma apparatus.In response to from the second instruction and second voltage instruction is received, the plasma apparatus enters the second mould Apply second voltage the target contact jaw of the plasma apparatus is remained second temperature, so that objective body be carried out likes: Ablation solidification.

It further include being shown and being reported by auditory tone cues, text prompt and/or indicator light when receiving alarm signal It is alert；Alarm signal is wherein generated after detecting operation troubles.

Wherein user generates the control instruction by being operable to foot-operated input equipment, wherein the control refers to Enabling is binary group<mode, power>.

It further include that the conducting medium is inputted to the plasma apparatus based on conducting medium input instruction, wherein described etc. The current surplus of conducting medium described in ion device real-time measurement and based on the current surplus determine whether generate described in lead Dielectric input instruction.The operating status of plasma apparatus described in 400 real-time display of method.

Fig. 5 is the structural schematic diagram according to the low-temperature plasma hoe scaler surgical apparatus of the preferred embodiment for the present invention.Such as Shown in Fig. 5, low-temperature plasma hoe scaler surgical apparatus include: emission electrode (removing cutter head) 501, loop electrode (circle set) 502, Pipe sheath 503, injecting cavity interface 505, rod cap 506, cushion block 507, sliding block (band socket aperture) 508, socket Pin 509 and pull rod 510.Preferably, emission electrode (removing cutter head) 501 and loop electrode (circle set) 502 imported by identical conduit and Objective body forms galvanic circle.Emission electrode (removing cutter head) 501, receives the radio-frequency generator institute via socket Pin 509 The first input voltage generated applies the first electricity between emission electrode (removing cutter head) 501 and loop electrode (circle set) 502 Pressure, so that the conducting medium reaches the first temperature and the conducting medium is promoted to be converted into plasmasphere, to utilize Electric energy excites conducting medium to generate plasma, and is vaporized removing to objective body based on the RF energy of plasma. Pipe sheath 503, for providing external sheath function.Injecting cavity interface 505 is based on liquid input instruction and inputs to liquid input unit The liquid, wherein the current surplus of liquid described in the liquid input unit real-time measurement and sending the current surplus To control unit, described control unit determines whether to generate the liquid input instruction and in determination based on the current surplus It generates and liquid input instruction is sent to dropping liquid input unit after the liquid input instructs.Injecting cavity interface 505 is position In the annular chamber of emission electrode conducting wire (removing cutter head conducting wire) outside.

Pull rod 510 is for making operator by providing support force pull rod 510.Socket Pin 509 is connected by high frequency Line is connect with radio-frequency generator, for receiving the first input voltage caused by the radio-frequency generator.Socket Pin 509 is received Second input voltage caused by the radio-frequency generator and second input voltage is transferred to emission electrode, emitted Apply second voltage between electrode 501 and loop electrode 502, so that objective body remains second temperature, to promote target Body carries out ablation solidification.Liquid input unit (is not shown) in Fig. 5, in response to liquid input signal, to objective body at input liquid Body between emission electrode and loop electrode so that form the thin layer of conducting medium.Liquid input unit passes through in following mode A kind of progress liquid input: titration mode and continuous liquid supply mode.

Wherein, the material of emission electrode (removing cutter head) 501 be stainless steel 304, loop electrode (circle set) 502 material be Stainless steel 304, pipe sheath 503 material be polytetrafluoroethylene PTFE, injecting cavity interface 505 material be acrylonitrile-butadiene-benzene Ethylene copolymer ABS, rod cap 506 material be ABS, cushion block 507 material be ABS, sliding block (with socket aperture) material be ABS, socket Pin material be the material of stainless steel 304 and pull rod 510 be ABS.

As shown in figure 5, the removing cutter head of emission electrode 2 can in hook-shaped, semicircle is spherical, plum blossom-shaped, cylindric or spherical, with Different target shapes is adapted to be cut.The length of loop electrode 502 can be any reasonable numerical value, such as 4 to 5 Millimeter.Wherein, the one end at 503 top of close pipe sheath of loop electrode 502 can be at a distance from the top end face of pipe sheath 503 appoints It anticipates reasonable numerical value, such as 2 to 3 millimeters.Wherein, water outlet 511 (or referred to as infusion port) sets the top end face of tube-placing sheath 503.

Emission electrode 501 is telescopically arranged by sliding block 508.In the initial state, the retraction of emission electrode 501 causes pipe sheath In 503, to facilitate the front end of pipe sheath 503 to enter human body.After reaching designated position, sliding block 508 is moved forward, by emission electrode 501 release the top end face of pipe sheath 503.Sliding block 508 is at socket aperture, and socket Pin 509 is arranged in socket aperture.

Fig. 6-8 is the partial enlargement according to the low-temperature plasma hoe scaler surgical apparatus of the preferred embodiment for the present invention or cuts Face schematic diagram.Fig. 6 shows the partial enlargement diagram of bipolar electrode socket connector (hoe scaler connector) 600, including: hair Radio polar conductor (removing cutter head conducting wire) 601 and loop electrode conducting wire 602.Low-temperature plasma hoe scaler surgical apparatus can be used Removing, ablation and the solidification and hemostasis of the diseased region of such as early cancer inside stomach.In addition, low-temperature plasma hoe scaler hand Art equipment can also be used to the removing, ablation of soft tissue in the surgical operations such as joint, backbone, skin, ear nose larynx, solidification and stop Blood.The low-temperature plasma hoe scaler surgical apparatus of the application is to belong within 24 hours, according to time of contact classification using the time Brought into temporary contact belongs to external access instrument (with tissue/bone/dentine) according to contact human body qualitative classification and according to Medical treatment device The classification of tool structure feature belongs to active medical instrument.The attachment bipolar operation electrode of low-temperature plasma hoe scaler surgical apparatus belongs to Disposable sterilized product.

Low-temperature plasma hoe scaler surgical apparatus uses bipolar scheme, and its working frequency is 110kHz.Plasma is controlled Treat removing, ablation, solidification and hemostasis of the instrument 100 by plasma technology realization to soft tissue in the operation such as ear nose larynx.When work, Low-temperature plasma hoe scaler surgical apparatus, as conduction liquid, activates shape when between emission electrode and loop electrode by physiological saline At a thin layer.When plasma therapeutic apparatus gives enough energy (voltage), physiological saline translates into one by band of energizing The molecular gas blanket of electrochondria (plasmasphere).That is, low-temperature plasma hoe scaler surgical apparatus utilizes energy excitation conducting medium (for example, physiological saline) generates plasma, and interrupts tissue element key by the energy of plasma.The energy of plasma Amount is by protein and other Direct Pyrolysis at O², CO², N²Equal gases, so that the vaporization completed to tissue is removed.When right When the work cutter head of low-temperature plasma hoe scaler surgical apparatus gives low-voltage, electric field is lower than the thresholding requirement for generating plasmasphere And tissue resistance heat is generated, so that tissue is carried out ablation solidification and hemostasis.

Fig. 7 shows the schematic cross-section along B-B, including: emission electrode conducting wire (removing cutter head conducting wire) 701 returns Path electrode conducting wire 702, fluid-through chamber 704 and emission electrode chamber 705.In more detail, Fig. 7 shows the (removing of emission electrode conducting wire Cutter head conducting wire) 701 sectional view 706, including insulating layer 707 and wire 708.Emission electrode conducting wire (lead by removing cutter head Line) insulating layer is needed, insulation and heat-insulated effect are acted as, loop electrode conducting wire 702 can be not provided with insulating layer.

In addition, those skilled in the art is as needed, loop electrode chamber 705 can also be regard as fluid-through chamber, in circuit When electrode cavity 705 is as fluid-through chamber, insulating layer need to be arranged in loop electrode conducting wire 702.

Fig. 8 shows the schematic cross-section along C-C, including emission electrode conducting wire (removing cutter head conducting wire) 801 and returns Path electrode conducting wire 802.

Fig. 9 is the side view of the hoe scaler (low-temperature plasma hoe scaler) of seal assembly according to the present invention.In the present invention Hoe scaler can be used in such as early cancer inside stomach diseased region removing, ablation and solidification and hemostasis.In addition, the stripping From cutting, ablation, solidification and the hemostasis that knife can also be used to soft tissue in the surgical operations such as joint, backbone, skin, ear nose larynx. The hoe scaler is to belong to brought into temporary contact within 24 hours, according to time of contact classification, according to contact human body property point using the time Class belongs to external access instrument (with tissue/bone/dentine) and belongs to active medical according to the classification of medical instrument structure feature Instrument.Hoe scaler uses bipolar scheme, and its working frequency is 105kHz.Optionally, the working frequency of the hoe scaler can be with In the range of 100-110.Hoe scaler by plasma technology realize to the cutting of soft tissue in the operation such as ear nose larynx, ablation, Solidification and hemostasis.When work, hoe scaler, as conduction liquid, activates shape when between emission electrode and loop electrode by physiological saline At a thin layer.When hoe scaler gives enough energy (voltage), physiological saline translates into one by charged particle of energizing The gas blanket (plasmasphere) of composition.That is, hoe scaler using energy excitation conducting medium (for example, physiological saline) generate etc. from Daughter, and tissue element key is interrupted by the energy of plasma.The energy of plasma is by protein and other Direct Pyrolysis is at O², CO², N²Equal gases, so that the vaporization completed to tissue is removed.When the work cutter head to hoe scaler give it is low When voltage, electric field requires lower than the thresholding for generating plasmasphere and generates tissue resistance heat, so that it is solidifying that tissue is carried out ablation Gu with hemostasis.

The operation part of hoe scaler includes that handle 1, pull rod 2, socket Pin 3, sliding block 4, cushion block 5, front bar 6 (are also referred to as drawn Pole cap), pipe sheath 7, injecting cavity interface 8 and push rod 9,10 etc..Pull rod 2, which is held to facilitate by operator, operates the hoe scaler.Pipe sheath 7 It is the elongated tubular longitudinally extended from front bar 16, pipe sheath 7 will be inserted into objective body (lesion of human body).

As shown in figure 12, chamber 6a is formed in front bar 6, and injecting cavity interface 8 is formed on the periphery of front bar 6.Liquid It is formed in into port 8a in the injecting cavity interface 8 on the periphery of front bar 6.

Fluid-through chamber 18 is arranged in pipe sheath 7, which leads to the top of pipe sheath 7 from the chamber 6a being formed in front bar 6 End.Fluid-through chamber 18 surrounds emission electrode conducting wire 16 (referring to Figure 13).Liquid (for example, conducting medium, ejected wash water etc.) is via liquid Fluid-through chamber 18 is entered by chamber 6a into port 8a.

Pipe sheath 7 is for providing external sheath function.Injecting cavity interface 8 is inputted based on the liquid from controller (not shown) Instruction input liquid (such as conducting medium), wherein the current surplus of the liquid is by real-time measurement and the current surplus quilt It is transmitted to controller, controller determines whether to generate the liquid input instruction and generate determining based on the current surplus Control is to fluid-through chamber 18 and finally defeated to objective body via chamber 6a from fluid entry port 8a after liquid input instruction Enter.

Further, as shown in figs. 10-12, hoe scaler further includes seal assembly.Specifically, which includes sealing Circle 11 and sealing ring 11 is fixed on to the fixed thread component 12 of the side of chamber 6a, the side of chamber 6a be chamber 6a with The opposite side of fluid-through chamber 18.

More specifically, the wall portion of the side of chamber 6a is formed with first step hole 6b, sets on the outside of the 6b of first step hole It is equipped with diameter of the diameter greater than first step hole 6c of second step hole 6c and second step hole 6c.Sealing ring 11 relative to First step hole 6b is fixed.The inner wall of second step hole 6c is formed with internal screw thread, and the periphery of fixed thread component 12 is formed There is external screw thread.Fixed thread component 12 is threaded in the 6c of second step hole as a result,.In addition, fixed thread component 12 is Hollow generally cylindrical body.

Further, the seal assembly of preferred embodiment in accordance with the present invention further includes block 13, and block setting is sealing Between circle 11 and fixed thread component 12.Block 13 includes circular portion and two lug 13a from circular portion protrusion.Lug 13a is adapted in the card slot 15 of second step hole 6c.It is solid by tightening in the case where lug 13a is fitted in card slot Determine screw member 12, block 13 is fixed in the 6c of second step hole and sealing ring 11 is fixed in the 6b of first step hole. In addition, block 13 is hollow roughly circular thin-plate element.

In addition, push rod 9 penetrates sealing ring 11 and enters fluid-through chamber 18 by chamber 6a, and push rod 9 is relative to sealing Component is slidably.Equally, push rod 10 penetrates sealing ring 11 and is entered in pipe sheath 7 by chamber 6a, is being formed in the pipe sheath 7 In and with the fluid-through chamber 18 deviate position cavity 7a in.In the present embodiment, push rod 10 is fixed relative to seal assembly. Further, pipe 14 is inserted into cavity 7a and protrudes outward from seal assembly (fixing pipe screw member 12), and push rod 10 exists In pipe 14 slidably.That is, pipe 14 is arranged between cavity 7a and push rod 10.

In addition, as shown in figure 9, the operation part of hoe scaler further includes that 21 He of emission electrode on the top of pipe sheath 7 is arranged in Loop electrode 22.Emission electrode 21 is telescopically arranged by push rod 9.

Emission electrode 21 (removing cutter head) and loop electrode 22 (circle set) pass through pipe sheath 7 and are imported into objective body and in target Body forms galvanic circle.Emission electrode 21 is via the socket Pin being connect by high frequency connecting line with radio-frequency generator (not shown) 3 receive the first input voltage caused by the radio-frequency generators, to apply the between emission electrode 21 and loop electrode 22 One voltage, so that the conducting medium reaches the first temperature and the conducting medium is promoted to be converted into plasmasphere, thus Plasma is generated using electric energy excitation conducting medium, and stripping is vaporized to objective body based on the RF energy of plasma From.

As shown in figure 9, the removing cutter head of emission electrode 21 can in hook-shaped, semicircle is spherical, plum blossom-shaped, cylindric or spherical, Removing is vaporized to adapt to different target shapes.

Emission electrode 21 is telescopically arranged by sliding block 4.In the initial state, the retraction of emission electrode 21 causes in pipe sheath 7, To facilitate the front end of pipe sheath 7 to enter human body.After reaching designated position, sliding block 4 is moved forward, and emission electrode 21 is released and is managed The top end face of sheath 7.

Pull rod 2 is for making operator by providing support force pull rod 2.Socket Pin 3 passes through high frequency connecting line and height Frequency generator connection, for receiving the first input voltage caused by the radio-frequency generator.Socket Pin 3 receives the high frequency Second input voltage caused by generator and second input voltage is transferred to emission electrode 21, in emission electrode 21 Apply second voltage between loop electrode 22, so that objective body remains second temperature, so that objective body be promoted to disappear Melt solidification.

For example, the range of first temperature is 35 DEG C -40 DEG C, the range of the second temperature is 40 DEG C -70 DEG C.It is described The range of first voltage is 100Vrms to 300Vrms, and the range of the second voltage is 60Vrms to 80Vrms.

The length L1 of loop electrode 22 can be any reasonable numerical value, such as 4 to 5 millimeters.Wherein, loop electrode 22 The one end at close 7 top of pipe sheath can be any reasonable numerical value, such as 2 to 3 millimeters with the top end face distance L2 of pipe sheath 7. Wherein, the top of pipe sheath 7, fluid entry port from the description below is arranged in water outlet 23 (or referred to as infusion port, see Fig. 9) The liquid that 8a enters enters objective body from water outlet 23.

Wherein, for example, the material of emission electrode 21 is stainless steel 304, the material of loop electrode 22 is stainless steel 304, pipe The material of sheath 7 is polytetrafluoroethylene PTFE, and the material of injecting cavity interface 8 is acrylonitrile-butadiene-styrene copolymer ABS, preceding The material of bar 6 is ABS, and the material of cushion block 5 is ABS, and the material of sliding block 4 is ABS, and the material of socket Pin 3 is stainless steel 304 And the material of handle 1 is ABS.

As shown in figure 13, emission electrode conducting wire (removing cutter head conducting wire) 16, loop electrode conducting wire 17, fluid-through chamber 18 are illustrated With emission electrode chamber 19.In more detail, the enlarged view in Figure 13 shows the sectional view of emission electrode conducting wire 16, wherein Including insulating layer 16a and wire 16b.Emission electrode conducting wire 16 needs insulating layer, acts as insulation and heat-insulated effect, circuit Electrode cable 17 can be not provided with insulating layer.

Emission electrode conducting wire 16 and loop electrode conducting wire 17 are connected with emission electrode 21 and loop electrode 22 respectively.Into one Step, emission electrode conducting wire 16 and loop electrode conducting wire 17 are each passed through the inside of push rod 9 and push rod 10 and are connected to (not shown) Radio-frequency generator.It is operable to move forward and push rod 10 mobile relative to seal assembly to push rod 9 in sliding block 4 as described above When fixed relative to seal assembly, emission electrode conducting wire 16 and loop electrode conducting wire 17 are kept at push rod 9 and push rod 10 inside.

Moreover it is preferred that sealing ring 11 can be molded by such as EPDM.But the invention is not limited to This.For example, sealing ring 11 can be made of any material that can be realized sealing, such as rubber etc..

Moreover it is preferred that the side (outside) of fixed thread component 12 is provided with notch 12a.But the present invention not office It is limited to this.For example, lug can be set in the outside of fixed thread part 12 and by lug rotary fixing screw line part 12.

The effect of preferred embodiment in accordance with the present invention realization is described below.

Firstly, since being provided with seal assembly in the side opposite with fluid-through chamber 18 of chamber 6a, seal assembly includes close The fixed thread component 12 of seal 11 and the side for sealing ring 11 to be fixed on to chamber and push rod 9 penetrates sealing ring 11 simultaneously And fluid-through chamber 18 is entered by chamber 6a, 10 sealing assembly of push rod can be sealed in the periphery of push rod 9 and push rod 10.As a result, Liquid is imported to chamber 6a and fluid-through chamber 18 from fluid entry port 8a during being performed the operation using hoe scaler (such as conductive to be situated between Matter) when, sealing ring 11 can prevent the liquid entered in chamber 6a and fluid-through chamber 18 from fluid entry port 8a due to itself Pressure and leaked out in the side of chamber 6a, from the periphery of two push rods 9,10.

Further, since block 13 is arranged between sealing ring 11 and fixed thread component 12.Therefore, when solid by rotation When determining side of the screw member 12 sealing ring 11 to be fixed on to chamber 6a, block 13 can tightly be clipped in 11 He of sealing ring Between fixed thread component 12, to firmly fix sealing ring 11, while for example being rotated when needing to dismantle seal assembly When fixed thread component 12, prevent sealing ring 11 from following fixed thread component 12 mobile.

Further, by the lug 13a of block 13, block 13 can be reliably held to its position without with solid Determine the rotation of screw member 13.

Further, close compared to made of traditional utilization rubber etc. since sealing ring 11 is molded by EPDM Sealing, the sealing ring 11 can have the abilities such as superior resistance to oxidation, anti-erosion.Therefore, can extend sealing ring uses the longevity Life.

Further, the side of fixed thread component 12 is provided with notch.Therefore, it is caught in notch using particular tool, it can be with Easily screw fixed thread component 12.

Further, pipe 14 is inserted into cavity 7a and protrudes outward from seal assembly, and push rod 10 is inserted into pipe 14.Cause This, can use liquid and cavity 7a that the isolation of pipe 14 imports chamber 6a from fluid entry port 8a.In other words, the liquid Body is only capable of entering fluid-through chamber 10 from fluid entry port 8a by chamber 6a, without entering cavity 7a.

Further, due to the removing cutter head of emission electrode 21 can in hook-shaped, semicircle is spherical, plum blossom-shaped, cylindric or spherical, Therefore, removing can be vaporized to objective body of different shapes.

Although 16 surrounding of emission electrode conducting wire as described above forms fluid-through chamber, those skilled in the art is according to need It wants, loop electrode chamber 19 can also be regard as fluid-through chamber, when loop electrode chamber 19 is as fluid-through chamber, loop electrode conducting wire 17 is needed Insulating layer is set.

Figure 14 is the side view of the hoe scaler (low-temperature plasma hoe scaler) of seal assembly according to the present invention.In the present invention Hoe scaler can be used in such as early cancer inside stomach diseased region removing, ablation and solidification and hemostasis.In addition, the stripping From removing, ablation, solidification and the hemostasis that knife can also be used to soft tissue in the surgical operations such as joint, backbone, skin, ear nose larynx. The hoe scaler is to belong to brought into temporary contact within 24 hours, according to time of contact classification, according to contact human body property point using the time Class belongs to external access instrument (with tissue/bone/dentine) and belongs to active medical according to the classification of medical instrument structure feature Instrument.Hoe scaler uses bipolar scheme, and its working frequency is 105kHz.Optionally, the working frequency of the hoe scaler can be with In the range of 100-110.Hoe scaler by plasma technology realize to the removing of soft tissue in the operation such as ear nose larynx, ablation, Solidification and hemostasis.When work, hoe scaler, as conduction liquid, activates shape when between emission electrode and loop electrode by physiological saline At a thin layer.When hoe scaler gives enough energy (voltage), physiological saline translates into one by charged particle of energizing The gas blanket (plasmasphere) of composition.That is, hoe scaler generates plasma using energy excitation conducting medium (for example, physiological saline) Body, and tissue element key is interrupted by the energy of plasma.The energy of plasma is straight by protein and other It connects and is cracked into O², CO², N²Equal gases, so that the vaporization completed to tissue is removed.When the work cutter head to hoe scaler gives low electricity When pressure, electric field requires lower than the thresholding for generating plasmasphere and generates tissue resistance heat, so that tissue is carried out ablation solidification With hemostasis.

The operation part of hoe scaler includes that handle 1, pull rod 2, socket Pin 3, sliding block 4, cushion block 5, front bar 6 (are also referred to as drawn Pole cap), pipe sheath 7, injecting cavity interface 8 etc..Pull rod 2, which is held to facilitate by operator, operates the hoe scaler.Pipe sheath 7 is from front bar 6 The elongated tubular longitudinally extended, pipe sheath 7 will be inserted into objective body (lesion of human body).

Fluid-through chamber 18 is arranged in pipe sheath 7, which leads to the top of pipe sheath 7 from the chamber being formed in front bar 6. Fluid-through chamber 18 surrounds emission electrode conducting wire 16 (referring to Figure 18).Liquid (for example, conducting medium, ejected wash water etc.) is through the formation of note The fluid entry port penetrated in chamber interface 8 enters fluid-through chamber 18 by the chamber in front bar 6.

Pipe sheath 7 is for providing external sheath function.Injecting cavity interface 8 is inputted based on the liquid from controller (not shown) Instruction input liquid (such as conducting medium), wherein the current surplus of the liquid is by real-time measurement and the current surplus quilt It is transmitted to controller, controller determines whether to generate the liquid input instruction and generate determining based on the current surplus After the liquid input instruction control liquid from the fluid entry port 8a in injecting cavity interface 8 via the chamber in front bar 6 to Fluid-through chamber 18 and finally to the input of objective body.

In addition, as shown in figure 14, the operation part of hoe scaler further includes that 21 He of emission electrode on the top of pipe sheath 7 is arranged in Loop electrode 22.Emission electrode 21 is formed with hook-shaped removing cutter head, and 22 sets of loop electrode in the peripheral surface of pipe sheath 7.Hair Radio pole 21 (removing cutter head) and loop electrode 22 (circle set) are imported into objective body and form conduction in objective body by pipe sheath 7 Circuit.Emission electrode 21 receives described via the socket Pin 3 being connect by high frequency connecting line with radio-frequency generator (not shown) First input voltage caused by radio-frequency generator is made with applying first voltage between emission electrode 21 and loop electrode 22 It obtains the conducting medium to reach the first temperature and the conducting medium is promoted to be converted into plasmasphere, to swash using electric energy It sends out conducting medium and generates plasma, and removing is vaporized to objective body based on the RF energy of plasma.

Further, emission electrode 21 is telescopically arranged by sliding block 4.In the initial state, emission electrode 21 retracts pipe In sheath 7, to facilitate the front end of pipe sheath 7 to enter human body.After reaching designated position, sliding block 4 is moved forward, and emission electrode 21 is pushed away The top end face of outlet pipe sheath 7.

The length L1 of loop electrode 22 can be any reasonable numerical value, such as 4 to 5 millimeters.Wherein, loop electrode 22 The one end at close 7 top of pipe sheath can be any reasonable numerical value, such as 2 to 3 millimeters with the top end face distance L2 of pipe sheath 7. Wherein, the top of pipe sheath 7 is arranged in water outlet (or referred to as infusion port), enters from the liquid being formed in injecting cavity interface 8 The liquid that port enters enters objective body from water outlet.

As shown in figure 15, emission electrode conducting wire (removing cutter head conducting wire) 16, loop electrode conducting wire 17, fluid-through chamber 18 are illustrated With loop electrode chamber 19.In more detail, the enlarged view in Figure 18 shows the sectional view of emission electrode conducting wire 16, wherein Including insulating layer 16a and wire 16b.Emission electrode conducting wire 16 needs insulating layer, acts as insulation and heat-insulated effect, circuit Electrode cable 17 can be not provided with insulating layer.

Further, as shown in figure 16, hoe scaler further includes square bushing 24 and electrode tip holder 25.Emission electrode 21 passes through electrode Seat 25 is installed in the top of pipe sheath 7.More specifically, as shown in figure 17, electrode tip holder 25 is made of such as ceramics, and is formed with It is located at the circular hole 25a and square hole 25b at both ends.In the present embodiment, the diameter of circular hole 25a is less than the side of square hole 25b It is long.The size and shape in the section of square bushing 24 and the size and shape in the section of square hole 25b are almost the same, square bushing 24 Length be longer than the length of square hole 25b, and square bushing 24 is inserted into slide in square hole 25b and in square hole 25b It is dynamic.In the present embodiment, the square hole 25b of square bushing 24 and electrode tip holder 25 constitutes anti-rotation device of the invention.

The fluid-through chamber 18 of electrode tip holder 25 and pipe sheath 7 is interference fitted.Specifically, in the case where pipe sheath 7 is heated and expands, The electrode tip holder 25 being made of ceramic is stuffed into the fluid-through chamber 18 of pipe sheath 7.After pipe sheath 7 is cooling, electrode tip holder 25 is by firmly It is embedded in the fluid-through chamber 18 of pipe sheath 7.Using above-mentioned construction, electrode tip holder 25 can be fixed in fluid-through chamber 18, without It is easily separated from fluid-through chamber 18.As a result, the emission electrode 21 and square bushing 24 of installation to electrode tip holder 25 can reliably be kept Its position.

In addition, square bushing 24 is made of such as stainless steel and is socketed on emission electrode 21, and pass through welding, hair Radio pole 21 and square bushing 24 are fixed together.Further, 21 quilt of square bushing 24 and emission electrode being fixed together It is inserted into square hole 25b, and can be slided in square hole 25b.The unci of emission electrode 21 passes through the circular hole of electrode tip holder 25 25a is prominent from the top of pipe sheath 7.

Since the square bushing 24 being fixed together with emission electrode 21 is inserted into square hole 25b, when sliding block 4 is mobile to send out When radio pole 21 is released from pipe sheath 7, emission electrode 21 not can rotate, but to remove the hook of cutter head shown in such as Figure 17 It orients and is stretched out from electrode tip holder 25, on the other hand, when sliding block 4 is mobile to which emission electrode 21 is retracted 7 (electrode tip holder of pipe sheath 25) when in, emission electrode 21 will not be rotated, to retract electrode to remove the hook orientation of cutter head shown in such as Figure 17 In seat 25.

Conventionally, as not set square bushing as described above and square hole, therefore when emission electrode retracts, Emission electrode can be able to rotate and the hook for removing cutter head orientation is caused to become with hook as shown in figure 17 orientation in about 180 degree Angle, may cause in this way emission electrode retract when removing cutter head hook from from longitudinal direction Shi Congguan sheath 7 Peripheral surface is prominent.As a result, the part outstanding can when needing hoe scaler exiting human body after for example completing vaporization removing Human body can be scratched or hoe scaler is interfered to exit human body.

However, hoe scaler includes the anti-rotational dress for preventing emission electrode 21 from rotating using the present invention of above-mentioned construction It sets, i.e. square bushing 24 and square hole 25b.Therefore, it is moved when by sliding block, drives emission electrode via emission electrode conducting wire 16 When 21 retraction pipe sheath 7, since the square bushing 24 and emission electrode 21 that are fixed together are inserted into square hole 25b, square sleeve Pipe 24 and emission electrode 21 are only capable of sliding along square hole 25b, without rotating.Therefore, the hook of the removing cutter head of emission electrode 21 It will not be prominent from the peripheral surface of pipe sheath 7.As a result, it is possible to avoid scratching human body or hoe scaler is hindered to exit human body.

In addition, square bushing 24 is slided in square hole 25b but is not rotated.When the movement of sliding block 4 is to release emission electrode 21, When the end face (left side in Figure 18) of square bushing 24 abuts the bottom wall 25c of square hole 25b, emission electrode 21 and square sleeve The movement of pipe 24 is stopped.As a result, the top of emission electrode 21 from pipe sheath 7 prominent length outstanding is limited.Therefore, it can limit The fixed protrusion length makes it suitable for being vaporized removing, without too long or too short.

In the above-described embodiments, electrode tip holder is made of ceramic.In 25 insertion tube sheath 7 of electrode tip holder with 18 interference of fluid-through chamber When cooperation, electrode tip holder 25 will not be deformed.However, the present invention is not limited thereto, electrode tip holder can be harder exhausted by other Edge material is made.

Figure 19 is the side view of the hoe scaler (low-temperature plasma hoe scaler) of seal assembly according to the present invention.In the present invention Hoe scaler can be used in such as early cancer inside stomach diseased region removing, ablation and solidification and hemostasis.In addition, the stripping From removing, ablation, solidification and the hemostasis that knife can also be used to soft tissue in the surgical operations such as joint, backbone, skin, ear nose larynx. The hoe scaler is to belong to brought into temporary contact within 24 hours, according to time of contact classification, according to contact human body property point using the time Class belongs to external access instrument (with tissue/bone/dentine) and belongs to active medical according to the classification of medical instrument structure feature Instrument.Hoe scaler uses bipolar scheme, and its working frequency is 105kHz.Optionally, the working frequency of the hoe scaler can be with In the range of 100-110.Hoe scaler by plasma technology realize to the removing of soft tissue in the operation such as ear nose larynx, ablation, Solidification and hemostasis.When work, hoe scaler, as conduction liquid, activates shape when between emission electrode and loop electrode by physiological saline At a thin layer.When hoe scaler gives enough energy (voltage), physiological saline translates into one by charged particle of energizing The gas blanket (plasmasphere) of composition.That is, hoe scaler generates plasma using energy excitation conducting medium (for example, physiological saline) Body, and tissue element key is interrupted by the energy of plasma.The energy of plasma is straight by protein and other It connects and is cracked into O², CO², N²Equal gases, so that the vaporization completed to tissue is removed.When the work cutter head to hoe scaler gives low electricity When pressure, electric field requires lower than the thresholding for generating plasmasphere and generates tissue resistance heat, so that tissue is carried out ablation solidification With hemostasis.

The operation part of hoe scaler includes that handle 1, pull rod 2, socket Pin 3, sliding block 4, cushion block 5, front bar 6 (are also referred to as drawn Pole cap), pipe sheath 7, injecting cavity interface 8, push rod 9 (the first push rod) and push rod 10 (the second push rod) etc..Pull rod 2 is by operator's handle It holds to facilitate and operates the hoe scaler.Pipe sheath 7 is the elongated tubular longitudinally extended from front bar 16, pipe sheath 7 to be inserted into objective body (human body Lesion).

As shown in Figure 20 and 4, fluid-through chamber 18 is arranged in pipe sheath 7, and the fluid-through chamber 18 is logical from the chamber being formed in front bar 6 To the top of pipe sheath 7.Fluid-through chamber 18 surrounds emission electrode conducting wire 16 (referring to fig. 2 2).Liquid is (for example, conducting medium, ejected wash water Deng) via the fluid entry port 8a in injecting cavity interface 8 fluid-through chamber 18 is entered by the chamber in front bar 6.

In addition, as shown in figure 19, the operation part of hoe scaler further includes that 21 He of emission electrode on the top of pipe sheath 7 is arranged in Loop electrode 22.Emission electrode 21 is telescopically arranged by push rod 9.As shown in figure 19, the removing cutter head of emission electrode 21 can In hook-shaped.But the present invention is not limited thereto, removing cutter head can also in semicircle is spherical, plum blossom-shaped, cylindric or spherical, with Different target shapes is adapted to be vaporized removing.

The length L1 of loop electrode 22 can be any reasonable numerical value, such as 4 to 5 millimeters.Wherein, loop electrode 22 The one end at close 7 top of pipe sheath can be any reasonable numerical value, such as 2 to 3 millimeters with the top end face distance L2 of pipe sheath 7. Wherein, the top of pipe sheath 7, liquid entry end from the description below is arranged in water outlet 23 (or referred to as infusion port, see Figure 19) The liquid that mouth 8a enters enters objective body from water outlet 23.

As shown in figure 22, emission electrode conducting wire (removing cutter head conducting wire) 16, loop electrode conducting wire 17, fluid-through chamber 18 are illustrated With loop electrode chamber 19.In more detail, the enlarged view in Figure 22 shows the sectional view of emission electrode conducting wire 16, wherein Including insulating layer 16a and wire 16b.Emission electrode conducting wire 16 needs insulating layer, acts as insulation and heat-insulated effect, circuit Electrode cable 17 can be not provided with insulating layer.

Incidentally, loop electrode chamber 19 and fluid-through chamber 18 are formed in pipe sheath 7 in parallel to each other and through pipe sheaths 7. Push rod 9 and push rod 10 are inserted into fluid-through chamber 18 and loop electrode chamber 19 respectively, and emission electrode 21 and loop electrode 22 are distinguished (do not schemed by being connected to radio-frequency generator through the emission electrode conducting wire 16 and loop electrode conducting wire 17 of push rod 9 and push rod 10 Show).

As shown in figure 20, a part of loop electrode conducting wire 17 being located in the second push rod 10 is formed as spiral-shaped.It should The diameter of a part of 17a is slightly smaller than the diameter of the second push rod 10.

Utilize above-mentioned construction, when the second push rod 10 is pushed, spiral-shaped a part of 17a of loop electrode conducting wire 17 Allow the mutual sliding between loop electrode conducting wire 17 and the second push rod 10, and passes through spiral-shaped a part of 17a and the The loop current between loop electrode conducting wire 17 and the second push rod 10 is connected in contact between the inner surface of two push rods 10.This Outside, it is contacted due to loop electrode conducting wire 17 with the inner surface of the second push rod 10, loop electrode conducting wire 17 is in second push rod It will not be moved radially in 10.Further, since a part of 17a is located in the second push rod 10, therefore even if the second push rod 10 is pushed away It is dynamic, it also can guarantee that a part of 17a is always positioned in pipe sheath 7 (PTFE tube), without being pushed out.

The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as Defined by subsidiary Patent right requirement, in addition to the present invention other embodiments disclosed above equally fall in it is of the invention In range.

Normally, all terms used in the claims are all solved according to them in the common meaning of technical field It releases, unless in addition clearly being defined wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground At least one example being construed in described device, component etc., unless otherwise expressly specified.Any method disclosed herein Step need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.

Claims

1. a kind of low-temperature plasma hoe scaler surgery systems, which is characterized in that the system comprises:

Control unit carries out parsing to the control instruction and generates the first mould when the control instruction indicates first mode Formula instruction, calculates for the output power under first mode according to present impedance and the control instruction, first mode is instructed And first voltage instruction associated with the output power under the first mode is sent to interface unit；

Interface unit receives first mode instruction and first voltage instruction from described control unit, and by the first mode Instruction and first voltage instruction are transmitted to plasma cell, and receive the present impedance of target contact jaw simultaneously from plasma cell And the present impedance is sent to described control unit；

Plasma cell, in response to receiving first mode instruction and first voltage instruction from the interface unit, into the first mould Circuit is carried out between the emission electrode and loop electrode at the target contact jaw of the plasma cell by conducting medium likes: Activation applies first voltage, so that the conducting medium reaches first to form thin layer between emission electrode and loop electrode Temperature and it is converted into plasmasphere, to generate plasma using electric energy excitation conducting medium, and is based on plasma The RF energy of body is vaporized removing to objective body；

2. low-temperature plasma hoe scaler surgery systems according to claim 1, which is characterized in that further include that the control is single Member carries out parsing to the control instruction and generates second mode instruction when the control instruction indicates second mode, according to Present impedance and the control instruction are calculated for the output power under second mode, second mode are instructed and with described the The associated second voltage instruction of output power under two modes is sent to interface unit.

3. system according to claim 2, the interface unit receives second mode instruction and the from described control unit The instruction of two voltages, and second mode instruction and second voltage instruction are transmitted to plasma cell.

4. low-temperature plasma hoe scaler surgery systems according to claim 3, which is characterized in that in response to from the interface Received second instruction of unit and second voltage instruction, the plasma cell enter second mode: applying second voltage with will The target contact jaw of the plasma cell remains second temperature, so that objective body is carried out ablation solidification.

5. low-temperature plasma hoe scaler surgery systems according to claim 1, which is characterized in that it further include alarm unit, For being shown and being alarmed by auditory tone cues, text prompt and/or indicator light when receiving alarm signal；

Alarm signal wherein is sent to control unit after the plasma cell detects operation troubles, described control unit will Alarm signal is sent to the alarm unit.

6. low-temperature plasma hoe scaler surgery systems according to claim 1, which is characterized in that the input unit is foot Formula input equipment is stepped on, wherein user is to the foot-operated input equipment by being operable to generate the control instruction, wherein The control instruction be binary group<mode, power>.

7. low-temperature plasma hoe scaler surgery systems according to claim 1, which is characterized in that further include that dropping liquid input is single Member inputs the conducting medium to plasma cell for the conducting medium input instruction based on described control unit, wherein institute It states the current surplus of conducting medium described in plasma cell real-time measurement and the current surplus is sent to control unit, institute Control unit is stated to determine whether to generate the conducting medium input instruction based on the current surplus and determine described in generation Conducting medium input instruction is sent to dropping liquid input unit after conducting medium input instruction.

8. low-temperature plasma hoe scaler surgery systems according to claim 1, which is characterized in that it further include display unit, Operating status for low-temperature plasma hoe scaler surgery systems described in real-time display.

9. low-temperature plasma hoe scaler surgery systems according to claim 1, which is characterized in that the model of the first voltage It encloses for 100Vrms to 300Vrms, and the range of the second voltage is 60Vrms to 80Vrms.