CN207679526U - A kind of electrode of electrosurgical unit - Google Patents
A kind of electrode of electrosurgical unit Download PDFInfo
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- CN207679526U CN207679526U CN201720101063.5U CN201720101063U CN207679526U CN 207679526 U CN207679526 U CN 207679526U CN 201720101063 U CN201720101063 U CN 201720101063U CN 207679526 U CN207679526 U CN 207679526U
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- electrode
- conductive coating
- electrosurgical
- tissue
- electrosurgical unit
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Abstract
This application involves a kind of electrode of electrosurgical unit, including conductive non-sticking lining, the conduction non-sticking lining selects doped graphene and/or metallic particles in the base material of PTFE to be made.Since PTFE itself can prevent adhesion, the conductivity of PTFE can be improved by adulterating various conductive materials.After the composite coating being consequently formed is covered on metal electrode, it ensure that electric knife working region and work capacity are not reduced, it is ensured that the electric conductivity of electrode, the coagulating effectiveness of electric knife was not influenced both, adhesion of the electrode to tissue, and simple in structure, easy to manufacture can be reduced again.
Description
Technical field
This application involves medical instruments fields, and in particular to a kind of electrode for Electrosurgical instrument.
Background technology
Electric knife (Electrosurgical system) is a kind of electrosurgical unit for replacing mechanical operation knife to carry out tissue cutting.From 20
Just had the twenties in century the electric knife product of commercialization for surgical operation (referring to《Electrosurgery equipment into
Exhibition》, You Hao, Yang Qian,《Chinese Journal of Medical Instrumentation》4th phase in 2012).The high-frequency and high-voltage that it is generated by active electrode tip
Tissue is heated when electric current is contacted with human body, the separation and solidification to injected organism tissue are realized, to play cutting and hemostasis
Purpose.Compared to a mechanical operation knife is played, the cutting speed of electric knife is fast, haemostatic effect is good.Not only can directly it make during surgery
With can be also used cooperatively in the endoscopic surgeries such as laparoscope.
However, temperature is high at work for electric knife, and it is usually larger to the thermal damage of tissue, often cause in clinic
Eschar.If eschar adheres on instrument, being continuing with for instrument is not only influenced, also resulting in sometimes will when instrument drawing is torn
Disorganization through hemostasis causes more bleedings.
To avoid tissue adhesion, at present have some relevant designs, design be by host dynamic detection impedance,
Actively stop or reduce energy output when impedance reaches threshold value or prompt user stops energy output, and then reduces extra heat waste
The caused tissue adhesion of wound.Although this design can reduce tissue adhesion, need host that there is superior feedback regulatory function,
Cost is very high.
In the prior art, design also is will to design some anti-sticking textures on instrument cutter head and the electrode of tissue contact
Shape (referring to：《The desorption research of Minimally Invasive Surgery instrument electric knife surface biomimetic》, Cao Huina,《Jilin University》, 2015), or
Partial coating (referring to United States Patent (USP) US5713895, entitled " Partially Coated Electrodes ") is done, or will be electric
Hollow out shape is made in pole, or electrode is embedded in nonmetallic materials such as ceramics above (referring to the United States Patent (USP) of Covidien AG
US7458972B2, entitled " Electrosurgical Electrode Having A Non-Conductive Porous
Ceramic Coating”).However the design direction of these solutions generally is all when reducing electrode with the contact of tissue
Between or contact area.But in the big blood vessel of closure in application, needing to ensure the contact area of enough electrodes and big blood vessel and connect
The tactile time ensures that big blood vessel is closed completely.Therefore merely from the angle of the time of contact or contact area of coordination electrode and tissue
On prevent adhesion, can may not always benefit at certain application scenarios.
On ultrasonic energy surgery, has and increased PTFE coatings in cutter head to prevent the way of tissue adhesion (referring to her
The patent CN103260533A of Xikang Medicine and Surgery company, entitled " surgical instruments ").Since the cutter head of ultrasound knife instrument is not led
Electricity, its normal work can't be influenced by increasing nonconducting PTFE coatings.But the tool bit part of electric knife instrument is electrode, this
Body needs conduction to carry out work, therefore the simple PTFE coatings that increase are inoperable.
Invention content
In order to solve the above-mentioned technical problem, the application provides a kind of electrode for Electrosurgical instrument, this practicality is new
Type increases conductive non-sticking lining on the electrode of existing electric knife instrument, is carried out in application Electrosurgical instrument outer
When section performs the operation, it can reduce the adhesion to tissue in the case where ensureing cutting completely or being closed tissue, make surgical procedure more
It is smooth.
According to the one side of the application, a kind of monopolar electrode for Electrosurgical instrument is provided, including：Metal electricity
Pole, the first conductive coating positioned at surface of metal electrode, conductive metal part；Wherein, first conductive coating be used for and
Tissue contacts, and the metal part is electrically connected with the Electrosurgical instrument.First conductive coating is not snearing
Layer.
The application can directly use the monopolar electrode of electrosurgical unit in the prior art, increase on metal electrode wherein
Conductive coating is not glued, it can be in the conductive function of completing electrosurgical unit and operation when electrode being made to contact tissue
Tissue adhesion.
Further, the monopolar electrode further includes the recess between first conductive coating and the metal part
Slot, locking of the recessed groove for monopolar electrode buckle.
Further, first conductive coating integrally covers metal electrode or part covering metal electrode.
Further, the first conductive coating selection is adulterated various conductive materials in the base material of PTFE and is made, such as
Doped graphene and/or metallic particles in the base material of PTFE.PTFE itself can prevent adhesion, but non-conductive, each by adulterating
Kind conductive material can improve the conductivity of PTFE.After the composite coating being consequently formed is covered on metal electrode, both
It can ensure the electric conductivity of electrode, and adhesion of the electrode to tissue can be reduced.
In one embodiment, first conductive coating is formed using PTFE (polytetrafluoroethylene (PTFE)) doped graphene
Composite material is made.This composite material can have higher conductivity, be provided simultaneously with the wear-resisting of PTFE, not viscous etc. characteristics.
In one embodiment, the material identical of the material of the metal electrode and the metal part.
In a specific embodiment, entire monopolar electrode is packed into the grip portions of the monopolar instrument of Electrosurgical system
In, or as the component of monopolar instrument.Monopolar instrument connects the radio-frequency generator of Electrosurgical system, the high frequency by cable
Generator generates high-frequency current, by conductive metal part, conducts to the first conductive coating, since the first conductive coating is also
Conductive, therefore high-frequency current is conducted to the tissue contacted with the first conductive coating.After electric current flows through human body, pass through same people
The negative plate of body contact returns to the radio-frequency generator.
According to further aspect of the application, a kind of bipolar electrode for Electrosurgical instrument is provided, including：It is negative
Pole, anode, the second conductive coating on positive electrode surface, connecting component.Wherein, the cathode, anode are used for and human body group
Contact is knitted, the connecting component can be electrically connected with the Electrosurgical instrument.Second conductive coating is non-sticking lining.
As above-mentioned monopolar electrode, the application can directly use the bipolar metal electricity of electrosurgical unit in the prior art
Pole cannot not increase viscously conductive coating in metal positive pole, and conductive electrosurgical unit can be completed when electrode being made to contact tissue
Function, and be avoided that operation in tissue adhesion.
Further, second conductive coating integrally covers anode or part covers anode.
Further, the second conductive coating selection is adulterated various conductive materials in the base material of PTFE and is made, such as
Doped graphene and/or metallic particles in the base material of PTFE.PTFE itself can prevent adhesion, but non-conductive, each by adulterating
Kind conductive material can improve the conductivity of PTFE.After the composite coating being consequently formed is covered on metal electrode, both
It can ensure the electric conductivity of electrode, and adhesion of the electrode to tissue can be reduced.
In one embodiment, second conductive coating is formed using PTFE (polytetrafluoroethylene (PTFE)) doped graphene
Composite material is made.
In a specific embodiment, the connecting component is casing, includes at least 2 conducting wires in described sleeve pipe,
The cathode and the anode are respectively connected with a conducting wire.The bipolar electrode connects the Electrosurgical system by conducting wire
Radio-frequency generator, the radio-frequency generator generate high-frequency current, the bipolar electrode are transferred to by conducting wire.
In a specific embodiment, anode 5 is completely covered in second conductive coating, in this case, high
Frequency generator sends out high-frequency current, flows into anode by a conducting wire, is then transferred to human body group by the second conductive coating
It knits, after electric current flows through human body, radio-frequency generator is returned by cathode and conducting wire connected to it.
In another particular embodiment of the invention, second conductive coating part covering anode, in this case, electricity
Part on extremely by the covering of the second conductive coating touches tissue by the second conductive coating, not by the second conduction on electrode
The part of coating covering directly contacts tissue.Radio-frequency generator sends out high-frequency current, is flow into just by a conducting wire
Pole, then a part of to be transferred to tissue by the second conductive coating, another part is transferred directly to tissue, electric current stream
After human body, radio-frequency generator is returned by cathode and conducting wire connected to it.
Forming the composite material of above-mentioned first conductive coating and the second conductive coating can be prepared with a variety of methods, at one
In specific implementation mode, PTFE emulsion and graphene oxide are adulterated by Electrostatic Absorption in aqueous solution first, then by oxygen
After the reduction of graphite alkene, hybrid material is used for coating.
Preferably, in 20wt%, the content of graphene oxide exists the content of PTFE particles in PTFE emulsion when doping
2wt%.
The thickness of first conductive coating, 1 and second conductive coating 6 can be specifically arranged as needed.It is specific at one
In embodiment, the thickness of coating is less than 0.05mm, it is preferred that the thickness control of coating is between 0.003mm to 0.020mm.
The application on existing monopolar electrode or bipolar electrode by being arranged conductive non-sticking lining, the conductive not snearing
Layer choosing doped graphene and/or metallic particles in the base material of PTFE are made, since PTFE itself can prevent adhesion, by mixing
Miscellaneous various conductive materials can improve the conductivity of PTFE, and the composite coating being consequently formed is covered on metal electrode
Afterwards, it ensure that electric knife working region and work capacity are not reduced, it is ensured that the electric conductivity of electrode does not influence the blood coagulation of electric knife
Effect not only, but also can reduce adhesion of the electrode to tissue, and simple in structure, easy to manufacture.
The technical solution of the application mainly solves electrosurgical unit in use, because the function of current is in human body group
Knitting makes histone solidification stick on instrument electrode, and then the problem of influence instrument normal use.Pass through compared to existing
The technology of host computer control tissue adhesion, the innovation, which does not need host, has superior feedback regulatory function, common electric knife master
Machine can also use, and significantly reduce cost.In addition, compared to the existing technology by structure design at instrument electrode,
The application ensure that electric knife working region and work capacity are not reduced, and not influence the coagulating effectiveness of electric knife.
Description of the drawings
Fig. 1 is the three-dimensional view according to the monopolar electrode containing coating of one embodiment of the utility model；
Fig. 2 is the three-dimensional view according to the bipolar electrode containing coating of the utility model another embodiment.
The label declaration of parts member in schematic diagram：
1, coating part, 2, recessed groove, 3, metal part, 4, cathode, 5, anode, 6, the coating part of anode, 7, casing
Specific implementation mode
Technical solutions in the embodiments of the present application is clearly and completely described below, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on embodiments herein, the common skill in this field
The every other embodiment that art personnel are obtained under the premise of not making creative work belongs to the model of the application protection
It encloses.
Referring to attached drawing 1, the stereopsis of the monopolar electrode containing coating according to one embodiment of the utility model is shown
Figure.The monopolar electrode is used in electrode surgery instrument, is preferred in high-frequency electrode knife, the monopolar electrode is as high-frequency electrical
The cutter head of pole knife will be cut or coagulation energy is applied to patient tissue, and radio-frequency generator, electricity are typically provided in high-frequency electrode knife
Road plate and power interface, the radio-frequency generator provide high-frequency current, and the circuit board is driven and controlled to electrode knife head,
The electric power of adaptation is provided for electrode knife head, to by suitable cutting cut or the energy of coagulation transmit sub-electrode cutter head.
Monopolar electrode in Fig. 1 includes：Metal electrode, the first conductive coating 1 positioned at surface of metal electrode, conductive gold
Belong to part 3 and the recessed groove 2 between the first conductive coating 1 and metal part 3.Wherein, first conductive coating 1 is used for
It is contacted with tissue, the metal part 3 is electrically connected with the Electrosurgical instrument, it is preferable that be packed into electrosurgery
The head of instrument simultaneously comes into full contact with the conductor in instrument, and locking of the recessed groove 2 for monopolar electrode buckles.Described first
Conductive coating 1 is non-sticking lining.
In one embodiment, the material identical of the material of the metal electrode and the metal part 3.
In practical applications, entire monopolar electrode can be fitted into the grip portions of the monopolar instrument of Electrosurgical system, or
Component of the person as monopolar instrument.Monopolar instrument connects the radio-frequency generator of Electrosurgical system by cable, and the high frequency occurs
Device generates high-frequency current, by conductive metal part 3, conduction to the first conductive coating 1, since the first conductive coating 1 is also
Conductive, therefore high-frequency current conducts to the first conductive coating 1 and touches tissue.After electric current flows through human body, then pass through
Cathode returns to radio-frequency generator.
Referring to Fig. 2, the stereopsis of the bipolar electrode containing coating according to the utility model another embodiment is shown
Figure.The bipolar electrode is used in electrode surgery instrument, is preferred in high-frequency electrode knife, the bipolar electrode is as high-frequency electrical
The cutter head of pole knife will be cut or coagulation energy is applied to tissue, and radio-frequency generator, electricity are typically provided in high-frequency electrode knife
Road plate and power interface, the radio-frequency generator provide high-frequency current, and the circuit board is driven and controlled to electrode knife head,
The electric power of adaptation is provided for electrode knife head, to by suitable cutting cut or the energy of coagulation transmit sub-electrode cutter head.
Bipolar electrode in Fig. 2 includes：Cathode 4, anode 5, the second conductive coating 6 on positive 5 surfaces, casing 7.
Wherein, the cathode 4, anode 5 are used for and tissue contacts, and described sleeve pipe 7 is electrically connected with the Electrosurgical instrument, excellent
Selection of land, described sleeve pipe 7 are fitted into the head of Electrosurgical instrument and are come into full contact with the conductor in instrument.Described second conductive painting
Layer 6 is non-sticking lining.In this embodiment, the second conductive coating 6 only is set on positive 5 surfaces, in other embodiment
In, the second conductive coating 6 can be set on 4 surface of cathode, or the second conductive painting is respectively provided on anode 5 and 4 surface of cathode
Layer 6.
Second conductive coating 6 can integrally cover anode 5, can also partly cover 5.
In a specific embodiment, include at least 2 conducting wires in casing 7, cathode 4 and anode 5 are respectively and one
Conducting wire is connected.
In a specific embodiment, anode 5 is completely covered in second conductive coating 6, in this case, high
Frequency generator sends out high-frequency current, flows into anode 5 by a conducting wire, is then transferred to human body by the second conductive coating 6
Tissue, after electric current flows through human body, radio-frequency generator is returned by cathode 4 and conducting wire connected to it.
In another particular embodiment of the invention, 6 part of the second conductive coating covering anode 5, in this case,
Tissue is touched by the second conductive coating 6 by part that the second conductive coating 6 covers on electrode 5, not by electrode 5
The part of two conductive coatings 6 covering directly contacts tissue.Radio-frequency generator sends out high-frequency current, passes through a conducting wire stream
Anode 5 is entered, then a part is transferred to tissue by the second conductive coating 6, and another part is transferred directly to human body group
It knits, after electric current flows through human body, radio-frequency generator is returned by cathode 4 and conducting wire connected to it.
For the first conductive coating 1 and the second conductive coating 6, preferably by PTFE doped graphenes, this composite wood
Material can have higher conductivity, be provided simultaneously with the wear-resisting of PTFE, not viscous etc. characteristics.
Forming the composite material of the first conductive coating 1 and the second conductive coating 6 can be prepared with a variety of methods, be had at one
In body embodiment, PTFE emulsion and graphene oxide are adulterated by Electrostatic Absorption in aqueous solution first, it then will oxidation
After graphene reduction, hybrid material is used for coating.
Preferably, in 20wt%, the content of graphene oxide exists the content of PTFE particles in PTFE emulsion when doping
2wt%.
The thickness of first conductive coating, 1 and second conductive coating 6 can be specifically arranged as needed.It is specific at one
In embodiment, the thickness of coating is less than 0.05mm, it is preferred that the thickness control of coating is between 0.003mm to 0.020mm.
The application mainly solves electrosurgical unit in use, because the function of current makes tissue egg in tissue
White solidification sticks on instrument electrode, and then the problem of influence instrument normal use.Pass through host computer control group compared to existing
The technology of adhesion is knitted, the innovation does not need host, and there is superior feedback regulatory function, common electric knife host can also make
With significantly reducing cost.In addition, compared to the existing technology by structure design at instrument electrode, the application ensures
Electric knife working region and work capacity are not reduced, and do not influence the coagulating effectiveness of electric knife.
Above disclosed is only several preferred embodiments of the application, cannot limit the power of the application with this certainly
Sharp range, therefore according to equivalent variations made by the application claim, still belong to the application scope.
Claims (19)
1. a kind of electrode of electrosurgical unit, the electrode is monopolar electrode, including：Metal electrode is located at surface of metal electrode
The first conductive coating, conductive metal part；Wherein, first conductive coating is used for and tissue contacts, the gold
Belong to part to be electrically connected with the Electrosurgical instrument；It is characterized in that：First conductive coating is non-sticking lining.
2. the electrode of electrosurgical unit according to claim 1 further includes being located at first conductive coating and the gold
Belong to the recessed groove between part, locking of the recessed groove for monopolar electrode buckles.
3. the electrode of electrosurgical unit according to claim 1, first conductive coating integrally covers the metal electricity
Pole or part cover the metal electrode.
4. the electrode of electrosurgical unit according to claim 1, the monopolar electrode is packed into the list of the Electrosurgical system
In the grip portions of pole instrument or a part of the monopolar electrode as monopolar instrument.
5. the electrode of electrosurgical unit according to claim 4, the monopolar instrument connects the electrosurgery by cable
The radio-frequency generator of system, the radio-frequency generator generate high-frequency current, by conductive metal part, conduction to described first
Conductive coating, then conduct to the tissue contacted with the first conductive coating, after the electric current flows through human body, connect by same human body
Tactile negative plate returns to the radio-frequency generator.
6. according to the electrode of claim 1-5 any one of them electrosurgical units, first conductive coating is selected in PTFE
Base material in doped graphene be made.
7. according to the electrode of claim 1-5 any one of them electrosurgical units, first conductive coating is selected in PTFE
Base material in doping metals particle be made.
8. the thickness of the electrode of electrosurgical unit according to claim 6, the coating is less than 0.05mm.
9. the thickness control of the electrode of electrosurgical unit according to claim 8, the coating is arrived in 0.003mm
Between 0.020mm.
10. a kind of electrode of electrosurgical unit, the electrode is bipolar electrode, including：Cathode, anode, be located at anode and/or it is negative
The second conductive coating in pole surface, connecting component；Wherein, the cathode, anode are used for and tissue contacts, the connection
Component is electrically connected with the Electrosurgical instrument；It is characterized in that：Second conductive coating is non-sticking lining.
11. the electrode of electrosurgical unit according to claim 10, the connecting component is casing, includes in described sleeve pipe
At least 2 conducting wires, the cathode and the anode are respectively connected with a conducting wire, and the bipolar electrode is connected by the conducting wire
The radio-frequency generator of the Electrosurgical system, the radio-frequency generator generate high-frequency current, are transferred to by conducting wire described bipolar
Electrode.
12. the electrode of electrosurgical unit according to claim 10, second conductive coating integrally covers the anode.
13. the electrode of electrosurgical unit according to claim 10, second conductive coating part covers the anode.
14. the electrode of electrosurgical unit according to claim 11, the radio-frequency generator sends out high-frequency current, passes through one
Root conducting wire flows into anode, is then transferred to tissue by the second conductive coating, after electric current flows through human body, by described negative
Pole and conducting wire connected to it return radio-frequency generator.
15. the electrode of electrosurgical unit according to claim 14, the upper portion by the covering of the second conductive coating of anode
Divide and tissue is touched by the second conductive coating, is not in direct contact by the part that the second conductive coating covers on the anode
To tissue, the radio-frequency generator sends out high-frequency current, and anode is flow by a conducting wire, and a part passes through described the
Two conductive coatings are transferred to tissue, and another part is transferred directly to tissue, after electric current flows through human body, by described negative
Pole and conducting wire connected to it return radio-frequency generator.
16. the electrode of the surgical instruments according to any one of claim 10-15, second conductive coating is selected
Doped graphene is made in the base material of PTFE.
17. the electrode of the surgical instruments according to any one of claim 10-15, second conductive coating is selected
Doping metals particle is made in the base material of PTFE.
18. the thickness of the electrode of electrosurgical unit according to claim 16, the coating is less than 0.05mm.
19. the thickness control of the electrode of electrosurgical unit according to claim 18, the coating is arrived in 0.003mm
Between 0.020mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720101063.5U CN207679526U (en) | 2017-01-24 | 2017-01-24 | A kind of electrode of electrosurgical unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720101063.5U CN207679526U (en) | 2017-01-24 | 2017-01-24 | A kind of electrode of electrosurgical unit |
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| Publication Number | Publication Date |
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| CN207679526U true CN207679526U (en) | 2018-08-03 |
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| CN201720101063.5U Active CN207679526U (en) | 2017-01-24 | 2017-01-24 | A kind of electrode of electrosurgical unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725841A (en) * | 2017-01-24 | 2017-05-31 | 上海逸思医疗科技有限公司 | A kind of electrode of electrosurgical unit |
| CN110053325A (en) * | 2019-05-09 | 2019-07-26 | 费凛 | A kind of anti-sticking mucous layer on electric knife surface |
| CN113180819A (en) * | 2021-06-01 | 2021-07-30 | 大连理工大学 | Non-adhesive electrosurgical instrument electrode |
| WO2022011627A1 (en) * | 2020-07-16 | 2022-01-20 | Covidien Lp | Composite coating for electrosurgical electrode |
-
2017
- 2017-01-24 CN CN201720101063.5U patent/CN207679526U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725841A (en) * | 2017-01-24 | 2017-05-31 | 上海逸思医疗科技有限公司 | A kind of electrode of electrosurgical unit |
| CN110053325A (en) * | 2019-05-09 | 2019-07-26 | 费凛 | A kind of anti-sticking mucous layer on electric knife surface |
| WO2022011627A1 (en) * | 2020-07-16 | 2022-01-20 | Covidien Lp | Composite coating for electrosurgical electrode |
| CN113180819A (en) * | 2021-06-01 | 2021-07-30 | 大连理工大学 | Non-adhesive electrosurgical instrument electrode |
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Address after: Room 103, building 2, no.1690 Cailun Road, Pudong New Area pilot Free Trade Zone, Shanghai 201203 Patentee after: Shanghai Yisi Medical Technology Co.,Ltd. Patentee after: YISI (SUZHOU) MEDICAL TECHNOLOGY Co.,Ltd. Address before: Room 103, building 2, no.1690 Cailun Road, Pudong New Area pilot Free Trade Zone, Shanghai 201203 Patentee before: SHANGHAI YISI MEDICAL TECHNOLOGY Co.,Ltd. Patentee before: YISI (SUZHOU) MEDICAL TECHNOLOGY Co.,Ltd. |