CN206120437U - Bipolar high frequency electric sword - Google Patents
Bipolar high frequency electric sword Download PDFInfo
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- CN206120437U CN206120437U CN201620692941.0U CN201620692941U CN206120437U CN 206120437 U CN206120437 U CN 206120437U CN 201620692941 U CN201620692941 U CN 201620692941U CN 206120437 U CN206120437 U CN 206120437U
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- electrode portion
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Abstract
The utility model provides a bipolar high frequency electric sword, including cutter portion, main part parts and operating portion, cutter portion includes first electrode portion, second electrode portion and insulating component, the main part parts include spacing parts and insulating tube sheath, the operating portion includes handle, button, socket, first wire and second wire. The utility model discloses high frequency electric hit the basic unit that organizes that arouses and perforates when bipolar high frequency electric sword's structure both can prevent cutting, can ensure again two electrodes of any direction or angle simultaneously with the abundant contact of tissue, guarantee the reliability of operation cutting.
Description
Technical field
This utility model is related to a kind of medical bipolar high frequency electric knife, particularly a kind of minimal tour and tape insulation defencive function
Bipolar high frequency electric knife.
Background technology
Endoscopic submucosal dissection (Endoscopic submucosal dissection, ESD) is referred to using high frequency device
The scope less invasive techniques that tool carries out being peeled off under mucosa to the pathological changes more than 2cm.Compared with traditional surgery, ESD is swollen in radical cure
On the basis of tumor, preferably retain digestive tract physiological function, hence it is evident that improve patient's postoperative life quality, become bag at present
Include first-selected Therapeutic Method (Gotoda T, Kondo H, Ono H, et of the esophaguses in interior early gastrointestinal carcinoma and precancerous lesion
al.A new endoscopic mucosal resection procedure using an Insulation–tipped
electrosurgical knife for rectal flat lesions:report of two cases[J]
.Gastrointest Endosco, 1999,50：560-563).
ESD is to export high frequency electric by external equipment, and by human body loop is formed, and in the less knife silk portion of sectional area
Divide and form high-density current realization cutting.Circuit type is formed currently used for the high frequency knife of decollement under endoscopic mucosal by its electric current
Two classes can be divided into, one kind is one pole high frequency electric knife, and one kind is bipolar high frequency electric knife.The shortcoming of one pole high frequency electric knife is high frequency electric
Can be by human body major part area.And bipolar high frequency electric knife high frequency electric flows only through the tissue region of minimum, that is, flow only through
Around pathological tissues, because high frequency electric is little by people's bulk area, and muscular layer of mucosa will not be injured and be considered as safest
High frequency electric knife.And in order to ensure high frequency electric can smoothly reach pathological tissues to be treated, active electrode and inertia electricity by wire
Pole must assure that and is fully contacted with tissue part, but the product design of current bipolar high frequency electric knife is it is difficult to ensure that in operation process
Simultaneously and contact tissue, especially in human body natural's tract, some are difficult to the position for operating, very for middle active electrode and inert electrode
The formation of card current loop is difficult to ensure, so as to cause cutting unreliable and unstable, the efficiency of operation and the peace of patient is directly affected
Quan Xing.It is therefore desirable to exploitation is a kind of and cutting more reliable and stablizing and the protection of cutter head tape insulation, the higher bipolar height of security performance
Frequency electric knife.
Utility model content
The purpose of this utility model is：There is provided it is a kind of treat early gastrointestinal carcinoma and precancerous lesion cutting, stripping it is steady
Fixed minimal tour and the bipolar high frequency scalpel with insulation protection head, it is ensured that the reliability of surgical cut and safety.
This utility model provides a kind of bipolar high frequency electric knife, including：Cutter part, main element and operating portion；
The cutter part, is located at the distal end of bipolar high frequency electric knife, including first electrode portion, second electrode portion and insulation structure
Part；The first electrode portion is active electrode, for organizing cutting, can release or withdraw relative to the front end of main element,
Including tubular portion and projection；The second electrode portion is inert electrode, including bar-like portion and positioned at bar-like portion distal end
Projection；The projection in the second electrode portion is located at first electrode portion distal end；The bar-like portion in the second electrode portion
In inside inserting in first electrode portion；The insulating component is used for completely cutting off first electrode portion and second electrode portion；
The main element includes insulation tube sheath and limiting component, and the insulation tube sheath, at least outer peripheral face has insulating properties,
Through between cutter part and operating portion；The limiting component is located inside insulation tube sheath, including fixed insulation locating part and work
Dynamic locating part；
Operating portion, is located at the proximal direction of the main element, with the first wire for connecting the first electrode portion and
Connect second wire in the second electrode portion, cutter part can be made to release or withdraw relative to the front end of main element.
Preferably, first electrode portion distal end is electric more than first from the length that the axis vertical direction of main element stretches out
The radius of the tubular portion cross section in pole portion, in the distal end in first electrode portion projection is formed.
Preferably, the raised transversal profile is circle distribution or diverging distribution.
Preferably, bar-like portion axis vertical direction of the projection in the second electrode portion along second electrode portion is outside
More than the bar-like portion radius in the second electrode portion, the projection surface in the second electrode portion is do not have to the length of extension
The smooth surface of sharp edge, the projection in the second electrode portion is located at first electrode portion distal end.
Preferably, the insulating component includes insulating part and insulation sleeve, the insulating part be located at first electrode portion with it is described
Between the projection in second electrode portion, for completely cutting off the projection in first electrode portion and second electrode portion；The insulation sleeve
The second electrode portion bar-like portion outer surface is wrapped in outward, and the insulation sleeve outer surface, three are wrapped in outside the first electrode portion
Form concentric structure.
Preferably, the insulating part is embedded in the projection in second electrode portion or the projection end with second electrode portion
Face patch is neat, and the first electrode portion is embedded in insulating part.
Preferably, the limiting component, including the fixed insulation locating part for being fixed on the insulation tube sheath distal, Yi Jishe
The movable locating part of near-end in the first electrode portion, the movable locating part along main element axis vertical direction to extension
The length stretched is less than the length that the fixed insulation locating part stretches out along the axis vertical direction of main element, the fixation
The distal end end face of insulation locating part inserts in insulation tube sheath beyond the distal end end face or at least concordant of insulation tube sheath in proximal face
It is interior.
Preferably, the outer surface of fixed insulation locating part is coarse or with barbed.
Preferably, the operating portion also includes handle, there is button on handle, and the button on the handle can be along handle
Axis linear slide, by release or withdraw button realize release and withdraw cutter part action.
This utility model also provides a kind of bipolar cutter head of high frequency electric knife, including：
First electrode portion, second electrode portion and insulating component；The first electrode portion is active electrode, is cut for tissue
Cut, can release or withdraw relative to the front end of main element, including tubular portion and projection；The second electrode portion is inertia
Electrode, including bar-like portion and and positioned at the projection of bar-like portion distal end；The projection in the second electrode portion is located at
First electrode portion distal end；Insert in the bar-like portion in the second electrode portion in first electrode portion, the second electrode portion it is convex
Go out the rod of length that bar-like portion axis vertical direction of the part along second electrode portion stretch out more than the second electrode portion
Shape partial radius, the projection surface in the second electrode portion is the smooth surface without sharp edge；The insulating component
For completely cutting off first electrode portion and second electrode portion.
Preferably, first electrode portion distal end is electric more than first from the length that the axis vertical direction of main element stretches out
The radius of the tubular portion cross section in pole portion, in the distal end in first electrode portion projection is formed.
Preferably, the raised transversal profile is circle distribution or diverging distribution.
Preferably, the insulating component includes insulating part and insulation sleeve, the insulating part be located at first electrode portion with it is described
Between the projection in second electrode portion, for completely cutting off the projection in first electrode portion and second electrode portion；The insulation sleeve
The second electrode portion bar-like portion outer surface is wrapped in outward, and the insulation sleeve outer surface, three are wrapped in outside the first electrode portion
Form concentric structure.
Preferably, the projection in the second electrode portion is located at first electrode portion distal end.
Preferably, the insulating part is embedded in the projection in second electrode portion or the projection end with second electrode portion
Face patch is neat, and the first electrode portion is embedded in the insulating part.
Beneficial effect：
The relatively existing bipolar electric knife of bipolar high frequency electric knife that this utility model is provided, two electrode current loops are less, and
There is head end insulation protection, make operation safer.
The relatively existing bipolar electric knife of bipolar high frequency electric knife that this utility model is provided, front, active electrode exists inert electrode
Afterwards, when electric knife enters Alimentary tract disease from human body natural's tract (oral cavity, anus chamber) by the way that endoscope's guiding is lower, in any angle
Or two, direction electrode can ensure and contact tissue, carry out tissue cutting so as to form current loop, it is ensured that surgical cut
Reliability, makes operation safer.
This utility model provide bipolar high frequency electric knife active electrode and inert electrode between have insulating protective layer, can in case
The tissue basic unit perforation that high frequency electric shock causes when only cutting.
The bipolar high frequency electric knife inert electrode sectional area that this utility model is provided is more than active electrode sectional area, and inertia electricity
Pole can play the protective effect for preventing boring a hole with bleeding in distal end in cutting.
The bipolar high frequency electric knife that this utility model is provided, the projection that active electrode distal end is formed with insulating part contact portion,
The tissue of fluid injection afterwale can be lifted in cutting so as to prevent perforation away from muscular layer of mucosa, meanwhile, projection can be with
Tissue is cut when cutter part is vertically moved.
Description of the drawings
Fig. 1 is bipolar high frequency electric knife overall construction drawing
Fig. 2 is bipolar high frequency electrotome head partial enlarged drawing
Fig. 3 A- Fig. 3 B are that the electrode of bipolar high frequency electric knife is combined profile with insulating part
Fig. 4 A- Fig. 4 D are electric knife difference cutting angle figures
Fig. 5 A- Fig. 5 D are the procedure declarations that electric knife is used
Fig. 6 A- Fig. 6 B are the cutting process of electric knife
Fig. 7 A- Fig. 7 B are the raised transversal profile figures in first electrode portion
1st, second electrode portion, 1a, bar-like portion, 1b, projection, 2, insulating part, 3, first electrode portion, 4, insulation sleeve,
5th, limiting component, 6, insulation tube sheath, 7, handle, 8, button, 9, socket, 10a, the first wire, 10b, the second wire, 11, insulation
Component, 12, fixed insulation locating part, 13, movable locating part, 16, pathological tissues, 17, muscular layer of mucosa, 18, tubular portion, 19,
Projection, 21, cutter part, 22, main element, 23, operating portion, 31, first electrode, 32, second electrode, 33, insulated part
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit this utility model.
Below in conjunction with the accompanying drawings the utility model is described in further detail with embodiment, but this utility model is not limited to down
State embodiment.
Embodiment 1
As shown in figure 1, the bipolar high frequency electric knife of present embodiment includes cutter part 21, main element 22 and operating portion 23.
Hereinafter, one end of cutter part 21 is referred to as into distal end, one end of operating portion 23 is referred to as into near-end.
As shown in Fig. 2 the cutter part 21 is located at the distal end of bipolar high frequency electric knife, including first electrode portion 3, second electrode
Portion 1 and insulating component 11, the cutter part 21 can be along the axial movement of the main element 22, and relatively described main body
The front end of part 22 can project and enter；
The first electrode portion 3 is active electrode, for organizing cutting, can be released relative to the front end of main element 22
Or withdraw, including tubular portion 18 and raised 19；The second electrode portion 1 is inert electrode, including bar-like portion 1a and is located at
The projection 1b of bar-like portion 1a distal end；The projection 1b of the second electrode is located at the distal end of first electrode portion 3, and second is electric
The length that the projection 1b in pole portion 1 stretches out from the bar-like portion 1a axis vertical direction of second electrode portion 1 is more than described the
The radius of bar-like portion 1a of two electrode portion 1.The projection 1b surfaces in the second electrode portion 1 are smooth without sharp edge
Surface.Cross-sectional diameter of the cross-sectional diameter more than the first electrode portion 3；The bar-like portion 1a interpolation in the second electrode portion
Connect in first electrode portion 3 and with operating portion 23；The insulating component 11 is used for completely cutting off first electrode portion 3 and second electrode portion
1, it is ensured that in operation process active electrode and inert electrode simultaneously and contact tissue, including insulating part 2 and insulation sleeve 4；It is described
Insulating part 2 is located between first electrode portion 3 and the projection 1b in the second electrode portion 1, for completely cutting off the He of first electrode portion 3
The projection 1b in second electrode portion 1；It is wrapped in the second electrode portion bar-like portion outer surface outside the insulation sleeve 4, described the
The outer surface of the insulation sleeve 4 is wrapped in outside one electrode portion, three forms concentric structure；
The insulating component 11 is isolation material, is made preferably by the material with thermostability such as ceramic material；
First electrode portion and second electrode portion are completely cut off using insulant, prevents first electrode and second electrode from directly leading
Electric knife failure after logical, sluggish second electrode portion in front, active first electrode portion rear, when electric knife is from human body natural's tract
When (oral cavity, anus chamber) enters Alimentary tract disease by the way that endoscope's guiding is lower, any angle or two, direction electrode portion can ensure
With contact tissue, tissue cutting is carried out so as to form current loop, it is ensured that the reliability of surgical cut, make operation safer.
Main element 22 includes insulation tube sheath 6 and limiting component 5；Insulation tube sheath has can be inserted in the raceway groove of endoscope
Logical external diameter and flexibility, at least outer peripheral face have insulating properties and can high temperature resistant, through between cutter part and operating portion；Limiting section
Part 5 is located inside insulation tube sheath 6, for limiting the released amount that first electrode portion releases the insulation tube sheath distal；In cutter part
21 play spacing and protective effect when being recovered to insulation tube intrathecal.When cutter part is released, first electrode portion 3 is cut, and is withdrawn
When cutter head return in insulation tube sheath 6, by limiting component 5 carry out it is spacing and protection.
The limiting component 5, including the fixed insulation locating part 12 of the distal end for being fixed on the insulation tube sheath, and is located at
The movable locating part 13 of the near-end of first electrode portion 3, the movable locating part 13 and the fixed insulation locating part 12 due to
The step that size is differently formed carry out it is spacing, so as to control the overhang in the first electrode portion.
The limiting component 5, including being fixed on the fixed insulation locating part 12 of the insulation tube sheath distal, and is located at institute
State the movable locating part 13 of first electrode portion near-end, the movable locating part 13 along main element axis vertical direction to extension
The length stretched is described solid less than the length that the fixed insulation locating part 12 stretches out along the axis vertical direction of main element
Surely the distal end end face of insulation locating part 12 inserts in insulation tube beyond the distal end end face or at least concordant of insulation tube sheath in proximal face
Intrathecal.The movable locating part 13 is metal parts, is fixed to the fixing point in first electrode portion 3；The fixed insulation locating part
12 are fixed on the insulation tube sheath distal, fixed insulation locating part 12 by resistant to elevated temperatures insulant, preferably by ceramic material
Constitute etc. the material for having thermostability.Increased and insulation tube sheath 6 by the way that the surface of fixed insulation locating part 12 is done into coarse or band agnail
Frictional force.
First electrode portion 3 and the movable distal end in the same direction of locating part 13 1 is driven to stretch out when the button 8 on operating portion 23 is promoted,
When the distal end end face of movable locating part 13 encounters the proximal face of fixed insulation locating part 12, because size difference can not continue to
Stretch out so as to play position-limiting action distal end.Cutter part 21 is driven to return into insulation tube sheath 6 when the button 8 in pullback operation portion 23
Receive, when the insulating part 2 in cutter part 21 encounters the side of fixed insulation locating part 12, because the step that difference in size is formed is limited
Cutter part 21 can not continue to withdraw, and play position-limiting action, while fixed insulation locating part 12 is insulant, protect well whole
The insulating properties at individual electric knife other positions in addition to active electrode.
As shown in figure 1, operating portion 23 is located at the proximal direction of the main element 22, cutter part 21 can be made relative to master
Release or withdraw in the front end of body component 22；Operating portion includes handle 7, button 8, socket 9, connects the of the first electrode portion 3
The one wire 10a and second wire 10b in the connection second electrode portion 1.First electrode portion 3 and second electrode portion 1 pass through wire
Handle afterbody is connected to, is drawn out on socket 9 by the first wire 10a and the second wire 10b respectively, height is connected to by socket 9
High frequency electric is input in frequency generator to electric knife.Button 8 on handle 7 can be along the axis linear slide of handle 7, by pushing away
Go out or advance button 8 to realize releasing and withdrawing the action of cutter part.
As shown in Fig. 3 A- Fig. 3 B, shown insulating component 11 includes insulating part 2 and insulation sleeve 4, and the insulating part 2 is located at the
Between the projection 1b in one electrode portion 3 and the second electrode portion 1, for completely cutting off first electrode portion 3 and second electrode portion 1
Projection 1b, can effectively completely cut off active electrode and inert electrode, it is ensured that two electric electrode insulations；The outsourcing of the insulation sleeve 4
In the second electrode portion bar-like portion outer surface, the outer surface of the insulation sleeve 4 is wrapped in outside the first electrode portion, three is formed
Concentric structure；The insulating part 2 is embedded in the projection 1b in second electrode portion or the projection 1b ends with second electrode portion
Face patch is neat, and the first electrode portion 3 is embedded in the insulating part 2.First electrode portion 3 is first with the parallel portion of insulation sleeve 4
The tubular portion 18 of electrode portion, the distal end of first electrode portion 3 is more than from the length that the axis vertical direction of main element stretches out
The radius of the cross section of tubular portion 18 in first electrode portion 3, in the distal end in first electrode portion 3 raised 19, described raised 19 are formed
Transversal profile can for circle distribution, diverging distribution or other shapes, as shown in Fig. 7 A- Fig. 7 B.Raised 19 can in cutting
So that the tissue of fluid injection afterwale to be lifted so as to prevent perforation away from muscular layer of mucosa, meanwhile, raised 19 can be vertical in cutter part 21
Tissue is cut when movement.
Fig. 4 A- Fig. 4 D are electric knife difference cutting angle figures, and Fig. 4 A and Fig. 4 B expression is the common bipolar electric knife of prior art
Different cutting angle examples, Fig. 4 C and Fig. 4 D show bipolar high frequency electric knife provided by the utility model, such as Fig. 4 A and Fig. 4 B
Shown, in prior art, bipolar electric knife first electrode 31 is located at the distal end of second electrode 32, first electrode 31 and second electrode 32 it
Between be provided with insulated part 33, only two electrodes could be met while connect with tissue in some specific angles (as shown in Figure 4 A)
Tactile requirement, so as to complete the purpose of tissue cutting.When cutting angle as shown in figs. 4 a and 4 c, first electrode and second electrode
Contact with pathological changes mucous layer 16 simultaneously on the basis of muscular layer of mucosa 17 is not contacted, when cutting angle as shown in figures 4 band 4d,
When ensureing that first electrode does not contact muscular layer of mucosa 17, second electrode just departs from common bipolar electric knife with pathological changes mucosa 16, causes
Loop disconnects, it is impossible to continue to cut, in order to ensure that first electrode is then inserted into deep muscular layer of mucosa 17 by the carrying out cut, plus
The big probability of bleeding and perforation.The high-frequency bipolar electric knife that this utility model is provided is due to the projection in second electrode portion 1
1b is located at the distal end of first electrode portion 3, and in same cutting angle (as shown in Figure 4 D) first electrode portion 3 and second is still can guarantee that
Electrode portion 1 is contacted simultaneously with pathological tissues 16 simultaneously, and any angle or two, direction electrode can be made to ensure to be connect with tissue
Touch.And the projection 1b in second electrode portion 1 is inert electrode, even if insert during operation too deep also will not produce to muscular layer of mucosa 17
Raw cutting, plays a part of to prevent bleeding and perforation, has reached superior technique effect.
Illustrate the operating process of the bipolar high frequency electric knife using Fig. 5 A- Fig. 5 D below：
In operation process, operative doctor first passes through needle-like knife and is marked (as shown in Figure 5A) within 16 1 weeks in pathological tissues,
Then again with injection needle, injecting normal saline is allowed to swell in pathological tissues 16, then passes through high frequency electric knife main element 22
Near endoscope's tract insertion pathological tissues 16, this process will keep closing at the inside of pipe sheath 7 (as shown in Figure 5 B) in cutter part 21,
Protection cutter part 21 and endoscope are not damaged by the process, reach after pathological tissues 16 by the button 8 of operating portion 23
Cutter part 21 (as shown in Figure 5 C) is released, in then putting it into needle-like knife initial stage cut-out hole, then one side gives first electrode portion 3
Supply high frequency electricity, is simultaneously that cutter is cut (as shown in Figure 5 D) along the direction of Fig. 5 D.When in digestive tract, some are horizontal
The not convenient position of cutting operation, can use instead it is longitudinally cutting, as illustrated in figs. 6 a-6b, will tissue pull-up after, pathological tissues 16
The projection 19 in first electrode portion 3 is stacked into, now raised 19 dissection is played.
Only it is the preferred implementation of the application described in upper, makes skilled artisans appreciate that or realizing the application's
Utility model.For various modifications and combination of these embodiments will be for a person skilled in the art apparent
, generic principles defined herein can be in the case of without departing from spirit herein or scope, in other embodiment
Middle realization.Therefore, the application will not be limited in the embodiments shown herein, and be to fit to it is disclosed herein
The consistent most wide scope of principle and features of novelty.
Claims (14)
1. a kind of bipolar high frequency electric knife, it is characterised in that the bipolar high frequency electric knife includes：
Cutter part, main element and operating portion；
The cutter part, is located at the distal end of bipolar high frequency electric knife, including first electrode portion, second electrode portion and insulating component；Institute
It is active electrode to state first electrode portion, for organizing cutting, can release or withdraw relative to the front end of main element, including pipe
Shape part and projection；The second electrode portion is inert electrode, including bar-like portion and the protuberance positioned at bar-like portion distal end
Point；The projection in the second electrode portion is located at first electrode portion distal end；Insert in the bar-like portion in the second electrode portion
In first electrode portion；The insulating component is used for completely cutting off first electrode portion and second electrode portion；
The main element includes insulation tube sheath and limiting component, and the insulation tube sheath, at least outer peripheral face has insulating properties, runs through
Between cutter part and operating portion；The limiting component is located inside insulation tube sheath, including fixed insulation locating part and activity limit
Position part；
Operating portion, is located at the proximal direction of the main element, with the first wire and connection that connect the first electrode portion
Second wire in the second electrode portion, can make cutter part release or withdraw relative to the front end of main element.
2. bipolar high frequency electric knife according to claim 1, it is characterised in that axle of the first electrode portion distal end from main element
The length that line vertical direction stretches out is more than the radius of the tubular portion cross section in first electrode portion, in the remote of first electrode portion
End forms raised.
3. bipolar high frequency electric knife according to claim 2, it is characterised in that the raised transversal profile is circle distribution
Or diverging distribution.
4. bipolar high frequency electric knife according to claim 1, it is characterised in that the projection in the second electrode portion is along
The length that the bar-like portion axis vertical direction of two electrode portions stretches out is more than the bar-like portion radius in the second electrode portion,
The projection surface in the second electrode portion is the smooth surface without sharp edge, the projection in the second electrode portion
Positioned at first electrode portion distal end.
5. bipolar high frequency electric knife according to claim 1, it is characterised in that the insulating component includes insulating part and insulation
Set, the insulating part is located between first electrode portion and the projection in the second electrode portion, for completely cutting off first electrode portion
With the projection in second electrode portion；It is wrapped in the second electrode portion bar-like portion outer surface outside the insulation sleeve, described first
The insulation sleeve outer surface is wrapped in outside electrode portion, three forms concentric structure.
6. bipolar high frequency electric knife according to claim 5, it is characterised in that the insulating part is embedded in second electrode portion
Projection is neat with the projection end face patch in second electrode portion, and the first electrode portion is embedded in insulating part.
7. bipolar high frequency electric knife according to claim 1 and 2, it is characterised in that the limiting component, including being fixed on
State the fixed insulation locating part of insulation tube sheath distal, and be located at the movable locating part of first electrode portion near-end, the work
Dynamic locating part is less than the fixed insulation locating part along main part along the length that the axis vertical direction of main element stretches out
The length that the axis vertical direction of part stretches out, the distal end end face of the fixed insulation locating part is beyond the remote of insulation tube sheath
End end face is at least concordant, and insulation tube intrathecal is inserted in proximal face.
8. bipolar high frequency electric knife according to claim 6, it is characterised in that the outer surface of fixed insulation locating part is coarse
Or with barbed.
9. bipolar high frequency electric knife according to claim 1, it is characterised in that the operating portion also includes handle, on handle
There is button, the button on the handle can be realized releasing along the axis linear slide of handle by releasing or withdrawing button
With the action for withdrawing cutter part.
10. the bipolar cutter head of a kind of high frequency electric knife, including：
First electrode portion, second electrode portion and insulating component；
The first electrode portion is active electrode, for organizing cutting, can release or withdraw relative to the front end of main element,
Including tubular portion and projection；
The second electrode portion is inert electrode, including bar-like portion and and positioned at the projection of bar-like portion distal end；It is described
The projection in second electrode portion is located at first electrode portion distal end；First electrode is inserted in the bar-like portion in the second electrode portion
In portion, the length that the bar-like portion axis vertical direction of the projection in the second electrode portion along second electrode portion stretches out
More than the bar-like portion radius in the second electrode portion, the projection surface in the second electrode portion is without sharp edge
Smooth surface；
The insulating component is used for completely cutting off first electrode portion and second electrode portion.
The bipolar cutter head of 11. high frequency electric knives according to claim 10, it is characterised in that first electrode portion distal end is from main body
The length that the axis vertical direction of part stretches out is more than the radius of the tubular portion cross section in first electrode portion, electric first
The distal end in pole portion forms projection.
The bipolar cutter head of 12. high frequency electric knives according to claim 11, it is characterised in that the raised transversal profile is
Circle distribution or diverging distribution.
The bipolar cutter head of 13. high frequency electric knives according to claim 10, it is characterised in that the insulating component includes insulation
Part and insulation sleeve, the insulating part is located between first electrode portion and the projection in the second electrode portion, for isolation the
One electrode portion and the projection in second electrode portion；The second electrode portion bar-like portion outer surface is wrapped in outside the insulation sleeve,
The insulation sleeve outer surface is wrapped in outside the first electrode portion, three forms concentric structure.
The bipolar cutter head of 14. high frequency electric knives according to claim 13, it is characterised in that the insulating part is embedded in second
The projection of electrode portion is neat with the projection end face patch in second electrode portion, and the first electrode portion is embedded in the insulation
In part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620692941.0U CN206120437U (en) | 2016-07-04 | 2016-07-04 | Bipolar high frequency electric sword |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620692941.0U CN206120437U (en) | 2016-07-04 | 2016-07-04 | Bipolar high frequency electric sword |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206120437U true CN206120437U (en) | 2017-04-26 |
Family
ID=58561039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620692941.0U Withdrawn - After Issue CN206120437U (en) | 2016-07-04 | 2016-07-04 | Bipolar high frequency electric sword |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206120437U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106214247A (en) * | 2016-07-04 | 2016-12-14 | 南京微创医学科技股份有限公司 | A kind of bipolar high frequency electric knife |
| CN110432983A (en) * | 2019-09-05 | 2019-11-12 | 成都美创医疗科技股份有限公司 | A kind of electrode fingers component |
| CN114849021A (en) * | 2022-05-09 | 2022-08-05 | 精微致远医疗科技(武汉)有限公司 | Visual intubation device and using method thereof |
-
2016
- 2016-07-04 CN CN201620692941.0U patent/CN206120437U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106214247A (en) * | 2016-07-04 | 2016-12-14 | 南京微创医学科技股份有限公司 | A kind of bipolar high frequency electric knife |
| CN110432983A (en) * | 2019-09-05 | 2019-11-12 | 成都美创医疗科技股份有限公司 | A kind of electrode fingers component |
| CN114849021A (en) * | 2022-05-09 | 2022-08-05 | 精微致远医疗科技(武汉)有限公司 | Visual intubation device and using method thereof |
| CN114849021B (en) * | 2022-05-09 | 2023-03-24 | 精微致远医疗科技(武汉)有限公司 | Visual intubation device and using method thereof |
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