CN110507407A - A kind of plasma knife head for surgical and plasma operation device - Google Patents
A kind of plasma knife head for surgical and plasma operation device Download PDFInfo
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- CN110507407A CN110507407A CN201910837327.7A CN201910837327A CN110507407A CN 110507407 A CN110507407 A CN 110507407A CN 201910837327 A CN201910837327 A CN 201910837327A CN 110507407 A CN110507407 A CN 110507407A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/042—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating using additional gas becoming plasma
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00059—Material properties
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00601—Cutting
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Abstract
A kind of plasma knife head for surgical and plasma operation device.The plasma knife head for surgical includes exciting electrode, loop electrode, and the cable line assembly connecting with exciting electrode, loop electrode.Loop electrode is tubulose, and there is hollow out on surface, and loop electrode surface is provided with insulating layer, and insulating layer does not cover loop electrode hollow part section；Exciting electrode is column, and surface is provided with insulating layer and at least two protrusions, high spot naked layer, and exciting electrode is inserted into loop electrode, and protrusion is exposed from the hollow part of loop electrode.Alternatively, loop electrode is column, and it is provided with insulating layer, there is N number of aperture to expose loop electrode on insulating layer；Exciting electrode is tubulose, and there is N number of aperture on surface, which is greater than bore size on loop electrode insulating layer；Loop electrode is inserted into exciting electrode, and each aperture on loop electrode insulating layer is located on exciting electrode in each aperture.The plasmasphere area that above-mentioned cutter head is formed when working is larger, improves the working efficiency of cutter head.
Description
Technical field
This application involves medical instruments field more particularly to a kind of plasma knife head for surgical and plasma operation device.
Background technique
Plasma radiofrequency ablation at low temperature is the new technology to be grown up based on electrochemistry in recent years, utilizes radio frequency
It generates plasma to interrupt tissue element key under the relative low temperature of 40-70 degree and tissue gasifies, to realize to tissue
The functions such as cutting, ablation and hemostasis, it is more and more to apply in clinic.The energy that bipolar radio frequency generates, by radio frequency cutter head and group
Electrolyte between knitting is converted into plasma thin layer, and the charged particle in plasma is by after electric field acceleration, by energy transmission
To tissue, the molecular link of the composition cell component in target tissue is dissociated, micro-molecular gas is decomposed into.The technology can be applied to ache
In the clinical operations such as pain section, Neurology.
However, the working efficiency of current plasma scalpel is lower, so as to cause operating time longer, increase hand
Art operation difficulty.
Summary of the invention
The embodiment of the present application provides a kind of plasma knife head for surgical and plasma operation device, for realizing cutter head work is increased
As when the area of plasmasphere that is formed, the working efficiency of cutter head is improved, to help to reduce operating time, improve operation effect
Rate.
In a first aspect, the embodiment of the present application provides a kind of plasma knife head for surgical, comprising: electrode stem and with the electrode
The cable line assembly of bar connection, the electrode stem includes exciting electrode and loop electrode；The loop electrode is tubulose, the pipe
There is hollow out at least one on shape loop electrode surface, and the loop electrode surface is provided with insulating layer, and the insulating layer does not cover institute
State the section of loop electrode hollow part；The exciting electrode is column, and surface is provided with insulating layer and at least two protrusions, described
The covering of at least two high spot naked layers, the exciting electrode are inserted into the tubular loop electrode, and described at least two is convex
It rises from the hollow part of the loop electrode and exposes.
Second aspect, the embodiment of the present application provide a kind of plasma knife head for surgical, comprising: electrode stem and with the electrode
The cable line assembly of bar connection, the electrode stem includes exciting electrode and loop electrode；The loop electrode be column, described time
It is provided with insulating layer on path electrode, has N number of aperture to expose the loop electrode on the insulating layer, N is whole more than or equal to 2
Number；The exciting electrode is tubulose, and there is N number of aperture on tubulose exciting electrode surface, aperture on the exciting electrode surface
Size is greater than the size of aperture on the loop electrode insulating layer；The loop electrode is inserted into the exciting electrode, and described time
Each aperture on path electrode insulating layer is located on the exciting electrode in each aperture.
The third aspect, the embodiment of the present application provide a kind of plasma knife head for surgical, comprising: electrode stem and with the electrode
The cable line assembly of bar connection, the electrode stem includes exciting electrode, loop electrode and pedestal；The pedestal is cylindric, In
One end setting of the pedestal is parallel to the groove of the base of ceramic, for being embedded in the exciting electrode；The excitation electricity
The base part of pole is strip, has strip protrusion in one end of the base part, the base part is embedded in the base
In the groove of seat, the protrusion exposes the pedestal；The loop electrode is arc, is wrapped on the pedestal, described
The protrusion of loop electrode and the exciting electrode is contactless.
Fourth aspect, the embodiment of the present application provide a kind of plasma operation device, comprising: host and first aspect,
Plasma knife head for surgical described in either side in second aspect or the third aspect, the cable line assembly in the plasma cutter head
It is connect with the host, the host is used to power by the cable line assembly to the plasma cutter head.
Plasma knife head for surgical or plasma operation device provided by the above embodiment, can increase the plasmasphere of formation
Area, improves the working efficiency of knife head for surgical, to help to reduce operating time, improve procedure efficiency, and without increasing
The diameter of the electrode stem of knife head for surgical.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of one of structural schematic diagram of plasma knife head for surgical provided by the embodiments of the present application；
Fig. 2 is a kind of second structural representation of plasma knife head for surgical provided by the embodiments of the present application；
Fig. 3 is a kind of third structural representation of plasma knife head for surgical provided by the embodiments of the present application；
Fig. 4 is one of the structural schematic diagram of another plasma knife head for surgical provided by the embodiments of the present application；
Fig. 5 is the second structural representation of another plasma knife head for surgical provided by the embodiments of the present application；
Fig. 6 is one of the structural schematic diagram of another plasma knife head for surgical provided by the embodiments of the present application；
Fig. 7 is the second structural representation of another plasma knife head for surgical provided by the embodiments of the present application；
Fig. 8 is the structural schematic diagram of exciting electrode in another plasma knife head for surgical provided by the embodiments of the present application；
Fig. 9 is the structural schematic diagram of pedestal in another plasma knife head for surgical provided by the embodiments of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, the technical solution of the application will be carried out below
Detailed description.Obviously, described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Base
Embodiment in the application, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the application is protected.
Plasma radiofrequency ablation at low temperature can be applied in the treatment such as Pain Management, Neurology, for example, can be used for treating
Postherpetic neuralgia (postherpetic neuralgia, PHN), (nerve root injury causes slowly Thorax operration neuralgia
Nerve pain), stump neuralgia, phantom limb pain etc..By taking PHN as an example, PHN is a kind of relatively common neurogenic pain,
It can behave as persistent pain, it is also possible to occur again after alleviating a period of time.It is treated using plasma radiofrequency ablation at low temperature
PHN has preferable analgesic effect, and can be avoided the problem of postoperative numbness, is more commonly used treatment means.
Current plasma scalpel is mostly single-point type, and the plasmasphere area that when work is formed is smaller, that is, to tissue
Ablation area is smaller, and working efficiency is lower.Especially when treating PHN, usual target tissue area is larger, then performing the operation, it is longer to need
Time could complete, and procedure efficiency is not high, increase the operation difficulty of surgical staff.
To solve the above-mentioned problems, the embodiment of the present application provides a kind of plasma knife head for surgical, for realizing knife is increased
The area of the plasmasphere formed when head work, improves the working efficiency of cutter head, to help to reduce operating time, improve hand
Art efficiency.
It is a kind of structural schematic diagram of plasma knife head for surgical provided by the embodiments of the present application referring to Fig. 1 to Fig. 3.Fig. 1 shows
Example property gives the overall structure diagram of plasma knife head for surgical, and Fig. 2 illustratively gives plasma knife head for surgical
The structural schematic diagram of electrode bar part, Fig. 3 are the diagrammatic cross-section of plasma knife head for surgical electrode bar part.
As shown in Figure 1 to Figure 3, plasma cutter head provided by the embodiments of the present application includes: electrode stem 11 and connects with electrode stem
The cable line assembly 12 connect, wherein electrode stem 11 includes exciting electrode 111 and loop electrode 112.
Wherein, exciting electrode 111 is column, and surface is provided with insulating layer and at least two protrusions, and insulating layer only covers column
Shape surface, does not cover high spot, so that after powered up being capable of shape between the convex portion of exciting electrode 111 and loop electrode 111
At plasmasphere.
Loop electrode 112 is tubulose, and there is hollow out at least one on 112 surface of loop electrode.Fig. 1 to Fig. 3 is engraved at one with having
For sky, when exciting electrode 111 to be inserted into tubulose loop electrode 12, each protrusion of exciting electrode 111 is enabled to be placed in circuit
The hollow out position of electrode 112；Alternatively, loop electrode 112 there can also be multiple hollow parts, exciting electrode 111 is being inserted into tubulose
When loop electrode 112, each of exciting electrode 111 protrusion is enabled to be located in each hollow out of loop electrode 112.Loop electrode 112
Surface is provided with insulating layer, but the insulating layer does not cover the section of 112 hollow part of loop electrode, so that exposes after powered up returns
Plasmasphere is capable of forming between path electrode 111 and exciting electrode 112.
Illustratively, exciting electrode 111 can be the cylinder of diameter 0.5mm；The section of the protrusion of surface setting can be
0.2mm*0.2mm's is rectangular, and raised height is 0.1mm；The number of protrusion can be 2-10, and raised number is more, then may be used
The area for forming plasmasphere is bigger.It should be appreciated that ruler raised on the size of above-mentioned exciting electrode 111, exciting electrode 111
Very little, number is citing, corresponding numerical value can be arranged according to different demands, the embodiment of the present application is without limitation.
In a specific embodiment, exciting electrode 111 passes through the host of cable line assembly 12 and plasma operation device
Connection, that is, host is the power supply of exciting electrode 111 by cable line assembly 12；Loop electrode 112 by cable line assembly 12 with
The host of plasma operation device connects, that is, host is the power supply of loop electrode 112 by cable line assembly 12.Further, swash
Power generation pole 111 is connect by the first conducting wire in cable line assembly 12 with host, and loop electrode 112 passes through in cable line assembly 12
The second conducting wire connect with host.
In one possible implementation, in the end of loop electrode 112 (the one of disconnected cable line assembly 12
End), such as left end hole shown in Fig. 2, it can be closed using insulating materials, to prevent excess tissue from entering tubular loop
Inside electrode 12, to improve the safety coefficient of knife head for surgical.For example, can be using epoxy resin to the end of loop electrode 112
It is closed.
Optionally, exciting electrode 111 is refractory metal material, for example, tungsten alloy material or platinum alloy can be used
Material.
Optionally, it can be further 304 stainless steels that the material of loop electrode, which is stainless steel,.304 stainless steels have
The features such as corrosion-resistant, good toughness, easy processing.
In some embodiments, the insulating layer on 111 surface of exciting electrode is the high-temperature insulating layer of pyrocondensation；Loop electrode 112
The insulating layer on surface may be the high-temperature insulating layer of pyrocondensation.
Further, plasma knife head for surgical can also include handle 13, and handle 13 may be provided at electrode stem 11 and cable
The junction of line component 12.Operator can hold handle 12 to manipulate the exciting electrode 111 of cutter head, loop electrode 112 connects
Touch target tissue.
Using plasma knife head for surgical provided by the above embodiment, it can be achieved that multiple spot excitation of plasma, increase to be formed
The area of plasmasphere, improves the working efficiency of knife head for surgical, thus help to reduce operating time, improve procedure efficiency,
And the diameter of the electrode stem without increasing knife head for surgical.
In order to increase the area for the plasmasphere that plasma knife head for surgical can be formed, the embodiment of the present application also provides one kind
Plasma knife head for surgical, structure can be as shown in Figure 4 and Figure 5.Wherein, Fig. 4 illustratively gives in plasma knife head for surgical
The schematic perspective view of electrode stem, Fig. 5 illustratively give the section signal of the electrode bar part of plasma knife head for surgical
Figure.
In this embodiment, plasma knife head for surgical includes electrode stem and the cable line assembly that connect with electrode stem, whole
Body structure is similar with plasma knife head for surgical shown in Fig. 3, but the knot of the electrode stem exciting electrode 211 and loop electrode 212 that include
Structure difference, as shown in Figure 4, Figure 5.
Specifically, loop electrode 212 is column, it is provided with insulating layer on loop electrode, there is N aperture dew on insulating layer
Loop electrode out, N are the integer more than or equal to 2.
Exciting electrode 211 is tubulose, and there is N number of aperture on 211 surface of exciting electrode, aperture on 211 surface of exciting electrode
Size is greater than the size of aperture on 212 insulating layer of loop electrode.
Loop electrode 212 is inserted into exciting electrode 211, and each aperture on 212 insulating layer of loop electrode is located at excitation electricity
On pole 211 in each aperture so that after exciting electrode 211 and loop electrode 212 are powered, position of opening be capable of forming etc. from
Sublayer.
Illustratively, loop electrode 212 can be the metal bar of direct 1mm, and on its surface, setting resistant to high temperature can be cured
With insulation tube, and N number of hole (in Fig. 4, Fig. 5 for opening 4 holes) is opened on insulation tube, the size of each aperture can be
0.5mm*1mm, the distance between every two aperture can be 0.7mm；Exciting electrode 211 can be the metal tube of diameter 1.2mm,
Correspondingly also open 4 holes on exciting electrode 211, the size of each aperture can be 0.6mm*1.2mm, between every two aperture
Distance can be 0.5mm so that by loop electrode 212 be inserted into exciting electrode 211 in after, on 211 insulating layer of loop electrode
Each aperture can be located in each aperture of exciting electrode 211 so that exciting electrode 211 and from insulating layer at work
Plasmasphere is capable of forming between the loop electrode 212 of middle exposing.It should be appreciated that the size of above-mentioned aperture, number are citing,
Corresponding numerical value can be set according to different demands, the embodiment of the present application is without limitation.
Optionally, after loop electrode 212 being inserted into exciting electrode 211, it can be bonded using epoxy resin.
In a specific embodiment, exciting electrode 211 is connected by the host of cable line assembly and plasma operation device
It connects, that is, host is the power supply of exciting electrode 211 by cable line assembly；Loop electrode 212 passes through cable line assembly and plasma hand
The host of art device connects, that is, host is the power supply of loop electrode 212 by cable line assembly.Further, exciting electrode 211
Connect by the first conducting wire in cable line assembly with host, loop electrode 212 by the second conducting wire in cable line assembly with
Host connection.
Optionally, exciting electrode 111 is refractory metal material, for example, tungsten alloy material or platinum alloy can be used
Material.
Optionally, it can be further 304 stainless steels that the material of loop electrode, which is stainless steel,.304 stainless steels have
The features such as corrosion-resistant, good toughness, easy processing.
In some embodiments, the insulating layer on 212 surface of loop electrode may be the high-temperature insulating layer of pyrocondensation；Excitation electricity
It 211 surface of pole can also be with one layer of high-temperature insulating layer of pyrocondensation.
Further, plasma knife head for surgical can also include handle, and handle may be provided at electrode stem and cable line assembly
Junction.Operator can hold handle to manipulate the exciting electrode of cutter head, loop electrode contact target tissue.
Using plasma knife head for surgical provided by the above embodiment, it can be achieved that multiple spot excitation of plasma, increase to be formed
The area of plasmasphere, improves the working efficiency of knife head for surgical, thus help to reduce operating time, improve procedure efficiency,
And the diameter of the electrode stem without increasing knife head for surgical.
In order to increase the area for the plasmasphere that plasma knife head for surgical can be formed, the embodiment of the present application provides one kind again
Plasma knife head for surgical.The plasma knife head for surgical may include electrode stem and the cable line assembly that connect with electrode stem, whole
Body structure is similar with plasma knife head for surgical shown in Fig. 3, but in this embodiment, and electrode stem includes exciting electrode 311, circuit electricity
Pole 312 and pedestal 313, structure can be as shown in Fig. 6 to Fig. 8.Wherein, Fig. 6 illustratively gives plasma knife head for surgical
The schematic perspective view of electrode stem, Fig. 7 are the sectional view of plasma knife head for surgical electrode stem, and Fig. 8 is the knot of exciting electrode 311
Structure schematic diagram, Fig. 9 are the structural schematic diagram of pedestal 313.
Specifically, pedestal 313 be it is cylindric, in one end of the pedestal, setting is parallel to the groove of the pedestal, for embedding
Enter exciting electrode 311.
The structure of exciting electrode 311 can be as shown in figure 8, include base part and protrusion.Wherein, base part is
Strip, the part is for being embedded in the groove of pedestal 313；Protrusion is located at one end of base part, in a strip shape, in basal part
After dividing insertion pedestal 313, protrusion is then exposed at 313 outside of pedestal.
Loop electrode 312 is arc-shaped, is wrapped on pedestal 313, and the protruding portion of loop electrode 312 and exciting electrode 311
Divide contactless.
When the plasma knife head for surgical is powered on, between exciting electrode 311 and loop electrode 312 as shown in Figure 4
Bar-shaped zone will generate plasmasphere.
In some embodiments, exciting electrode 311 is connect by cable line assembly with the host of plasma operation device,
That is, host is the power supply of exciting electrode 311 by cable line assembly；Loop electrode 312 is performed the operation by cable line assembly and plasma
The host of device connects, that is, host is the power supply of loop electrode 312 by cable line assembly.Further, exciting electrode 311 is logical
The first conducting wire crossed in cable line assembly is connect with host, and loop electrode 312 passes through the second conducting wire and master in cable line assembly
Machine connection.
Optionally, said base 313 can be base of ceramic.In a specific embodiment, the material of pedestal 313 can
Think the ceramic materials such as zirconium oxide or aluminium oxide.
Optionally, exciting electrode 311 can be carried out with pedestal 313 be bonded using epoxy resin, epoxy can also be used
Resin carries out loop electrode 312 with pedestal 313 be bonded.
Optionally, exciting electrode 111 is refractory metal material, for example, tungsten alloy material or platinum alloy can be used
Material.
Optionally, it can be further 304 stainless steels that the material of loop electrode, which is stainless steel,.304 stainless steels have
The features such as corrosion-resistant, good toughness, easy processing.
Optionally, can swash in one layer insulating of outside pyrocondensation of electrode stem as shown in fig. 6, the insulating layer does not cover
The tapping of power generation pole 311.
Further, plasma knife head for surgical can also include handle, and handle may be provided at electrode stem and cable line assembly
Junction.Operator can hold handle to manipulate the exciting electrode of cutter head, loop electrode contact target tissue.
Using plasma knife head for surgical provided by the above embodiment, the area of the plasmasphere of formation can be increased, improved
The working efficiency of knife head for surgical, to help to reduce operating time, improve procedure efficiency, and the electricity without increasing knife head for surgical
The diameter of pole bar.
Based on the same technical idea, the embodiment of the present application also provides a kind of plasma operation device, the knots of the device
Structure may include: host and plasma knife head for surgical.
Wherein, plasma knife head for surgical can be plasma knife head for surgical in any of the preceding embodiments, plasma operation
Cable line assembly in cutter head is connect with host, and host is by cable line assembly in ion knife head for surgical to plasma knife head for surgical
In exciting electrode, loop electrode power supply.Specifically, host can provide high frequency voltage to plasma cutter head, so that exciting
Plasmasphere is formed between electrode, loop electrode.
Further, which can also include the floor push being connected with host.When floor push quilt
When triggering, host is powered according to preset time to plasma knife head for surgical.For example, working as operation if preset time is set as 5s
When operator tramples floor push, then host to plasma knife head for surgical power 5s.It, can be with according to preset time automatic power
The working time for automatically controlling plasma cutter head, reduce the use difficulty of operator.
Using plasma operation device provided by the above embodiment, the area of the plasmasphere formed at cutter head can be increased,
The working efficiency of knife head for surgical is improved, to help to reduce operating time, improve procedure efficiency.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of plasma knife head for surgical, which is characterized in that including electrode stem and the cable line assembly being connect with the electrode stem,
The electrode stem includes exciting electrode and loop electrode；
The loop electrode is tubulose, and the tubular loop electrode surface has hollow out at least one, and the loop electrode surface is set
It is equipped with insulating layer, the insulating layer does not cover the section of the loop electrode hollow part；
The exciting electrode is column, and surface is provided with insulating layer and at least two protrusions, and at least two high spot is without exhausted
Edge layer covering, the exciting electrode are inserted into the tubular loop electrode, and described at least two is raised from the loop electrode
Hollow part exposes.
2. cutter head according to claim 1, which is characterized in that the second end of the loop electrode is closed with insulating materials.
3. a kind of plasma knife head for surgical, which is characterized in that including electrode stem and the cable line assembly being connect with the electrode stem,
The electrode stem includes exciting electrode and loop electrode；
The loop electrode is column, is provided with insulating layer on the loop electrode, has N number of aperture to expose institute on the insulating layer
Loop electrode is stated, N is the integer more than or equal to 2；
The exciting electrode is tubulose, and there is N number of aperture on tubulose exciting electrode surface, aperture on the exciting electrode surface
Size is greater than the size of aperture on the loop electrode insulating layer；
The loop electrode is inserted into the exciting electrode, and each aperture on the loop electrode insulating layer is located at the excitation
On electrode in each aperture.
4. a kind of plasma knife head for surgical, which is characterized in that including electrode stem and the cable line assembly being connect with the electrode stem,
The electrode stem includes exciting electrode, loop electrode and pedestal；
The pedestal be it is cylindric, in one end of the pedestal, setting is parallel to the groove of the base of ceramic, for being embedded in
The exciting electrode；
The base part of the exciting electrode is strip, has strip protrusion, the substrate in one end of the base part
It is partially submerged into the groove of the pedestal, the protrusion exposes the pedestal；
The loop electrode is arc, is wrapped on the pedestal, the protrusion of the loop electrode and the exciting electrode
It is contactless.
5. cutter head according to claim 4, which is characterized in that the pedestal is base of ceramic.
6. cutter head according to any one of claims 1-5, which is characterized in that the exciting electrode passes through the cable
Component is connect with the host of plasma operation device, and the loop electrode passes through the cable line assembly and plasma operation device
Host connection.
7. cutter head according to any one of claims 1-5, which is characterized in that the material of the loop electrode is stainless
Steel.
8. cutter head according to any one of claims 1-5, which is characterized in that the material of the exciting electrode is tungsten alloy
Material or platinum alloy material.
9. a kind of plasma operation device characterized by comprising host and according to claim 1 to 8
Plasma knife head for surgical, the cable line assembly in the plasma cutter head are connect with the host, and the host is for passing through institute
Cable line assembly is stated to power to the plasma cutter head.
10. device according to claim 9, which is characterized in that further include the floor push being connect with the host；
When the floor push is triggered, the host is powered to the plasma cutter head within a preset time.
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