WO2022127065A1

WO2022127065A1 - Electrode clamp

Info

Publication number: WO2022127065A1
Application number: PCT/CN2021/102357
Authority: WO
Inventors: 谢立平; 林敏�
Original assignee: 珠海市司迈科技有限公司
Priority date: 2020-12-15
Filing date: 2021-06-25
Publication date: 2022-06-23
Also published as: CN214434461U

Abstract

An electrode clamp. A first clamp (11), a second clamp (12), and a push broach (30) are arranged in a through supporting tube (13) in a penetrating mode; the push broach (30) is located at a position between the first clamp (11) and the second clamp (12); a clamp handle (16) is in linkage with a clamp driving assembly; the clamp driving assembly drives the first clamp (11) and the second clamp (12) to move toward the through supporting tube (13) so as to clamp and electrically coagulate a tissue (100, 101); a push broach handle (15) is in linkage with a push broach driving assembly; the push broach driving assembly drives the push broach (30) to move outwards from the through supporting tube (13) so as to cut the tissue (100, 101) that is electrically coagulated; the push broach driving assembly is provided with a limiting portion; and the limiting portion moves towards the clamp driving assembly so as to abut against the clamp driving assembly. According to the electrode clamp, it is ensured that an accurate electrical cutting capability is provided by means of the linkage limiting relationship of a push broach assembly and a clamp assembly when the tissues having different thicknesses are clamped, thereby avoiding damage caused by collision between a push broach edge (301) and the clamps (11, 12). The use of the electrode clamp enables an operation to be safer, more convenient, more accurate, and more efficient, and can reduce an operation time and improve the success rate of the operation.

Description

an electrode clamp

technical field

The utility model relates to the technical field of medical instruments, in particular to an electrode forceps.

Background technique

With the development of medical technology, minimally invasive surgery has been popularized. Laparoscopic surgery is a newly developed minimally invasive method, and it is also an inevitable trend in the development of future surgical methods. Surgical instruments are increasingly important in laparoscopic and gynecological surgery.

The existing multifunctional surgical instruments have the following technical defects: when clamping tissues of different thicknesses, due to the different closing heights of the clamps, the distance of the blades of the separation structure changes when they are pushed out to cut the tissue; , the blade will collide with the clamp after the blade is completely pushed out when cutting thin components, and it will become dull; if the cutting distance of thin tissue is ensured, the pushing distance of the blade will be shortened when cutting thick components, the cutting position will be inaccurate, and the efficiency will be low, which is not conducive to surgery. In addition, the blade will become blunt after cutting the tissue for many times, and if it continues to be used, it will increase the risk of surgery, and the bluntness of the blade will lead to the failure of the blade, and finally the entire surgical instrument cannot be used. cause a waste of resources.

Utility model content

The purpose of the present utility model is to provide an electrode forceps, which solves the technical defects of the above-mentioned prior art, and ensures accurate electric cutting capability when clamping tissues of different thicknesses through the linkage limit relationship between the pusher assembly and the clamp assembly. To avoid damage caused by the collision between the blade of the pusher and the clamp, the use of the electrode clamp makes the operation safer, more convenient, more accurate and more efficient, saves the operation time and improves the success rate of the operation.

In order to achieve the above object, the utility model provides the following technical solutions:

An electrode forceps, which includes a middle-pass support tube; a clamp assembly, including a clamp drive assembly, a clamp handle, and a first clamp and a second clamp arranged oppositely; a knife push assembly, including a push knife drive assembly, a push a knife handle and a push knife; the first clamp, the second clamp and the push knife pass through the middle-pass support pipe, and the push knife is located in the first clamp and the first clamp The position between the two clamps; the clamp handle is linked with the clamp drive assembly, and the clamp drive assembly drives the first clamp and the second clamp to move into the middle-pass support pipe to move Clamp and electrocoagulate tissue; the push knife handle is linked with the push knife drive assembly, and the push knife drive assembly drives the push knife to move outward from the middle-pass support tube to cut the electrocoagulated tissue tissue, the push knife drive assembly is provided with a limiting portion, and the limiting portion moves toward the clamp drive assembly to abut the clamp drive assembly.

Further, the electrode forceps further includes a support handle, which is connected to one end of the middle-pass support pipe, the clamp drive assembly and the push knife drive assembly are mounted on the support handle, and the clamp handle and the The push-knife handle is rotatably connected to the side of the support handle facing the middle-pass support pipe.

Further, the distance between the first clamp and the second clamp gradually decreases along the direction toward the mid-pass support tube.

Further, the clamp assembly further comprises elastically deformable first deformation strips and second deformation strips, two ends of the first deformation strip are respectively fixedly connected to the first clamp and the clamp drive assembly, The two ends of the second deformation strip are respectively fixedly connected with the second clamp and the clamp drive assembly. When the clamp handle is triggered, the clamp drive assembly drives the first clamp and the clamp drive assembly. The second clamp is retracted and moved toward the mid-pass support tube to clamp the tissue.

Further, the clamp drive assembly includes a clamp linkage mechanism and a clamp return spring, the first deformation strip and the second deformation strip are both connected to one end of the clamp linkage mechanism, and the clamp The other end of the linkage mechanism is connected with the clamp handle, and the clamp return spring is installed in the inner cavity of the support handle and abuts with the clamp linkage mechanism.

Further, the knife push assembly further includes a connecting rod, the knife push drive assembly includes a push knife reset spring and a push knife linkage mechanism, and both ends of the connecting rod are respectively connected with the push knife and the push knife linkage mechanism One end of the knife pusher linkage mechanism is connected to the knife pusher handle, and the knife pusher return spring is installed in the inner cavity of the support handle and abuts with the knife pusher linkage mechanism.

Further, the knife push linkage mechanism includes a knife push block and a limit bar, the limit bar is fixedly connected to the knife push block, one end of the knife push handle is drivingly connected to the knife push block, the The limiting bar is provided with the limiting portion, and the limiting portion can abut the clamp driving assembly to stop the movement of the pusher.

Further, one end of the pusher handle is drivingly connected to the pusher block by being provided with a guide chute.

The beneficial effects of the present utility model:

The electrode forceps provided by the utility model, wherein, the clamp handle is linked with the clamp drive assembly, and the clamp drive assembly drives the first clamp and the second clamp to move into the central support tube to clamp and electrocoagulate the tissue; the push knife handle The push knife drive assembly is linked, and the push knife drive assembly drives the push knife to move outward from the middle-pass support tube to cut the tissue after electrocoagulation. Connect the clamp drive assembly.

The electrode forceps are used in surgery. For thin tissues, the distance between the first and second forceps moving into the middle-passing support tube is relatively large, and the limit part of the push-knife drive assembly can move a relatively small distance. Connected to the clamp drive assembly to stop driving the pusher to move outwards from the middle-pass support tube; for thicker tissue, the first clamp and the second clamp move a smaller distance into the middle-pass support tube, and the pusher The limit part of the knife drive assembly needs to move a large distance before it can abut on the clamp drive assembly, so as to stop driving the push knife to move outwards from the middle-pass support pipe; from the above, the electrode clamp can pass The linkage limit relationship between the pusher assembly and the clamp assembly ensures accurate electrical cutting capability when clamping tissues of different thicknesses and avoids damage caused by the collision between the pusher blade and the clamp. The use of the electrode clamp makes the operation safer and more convenient , Accurate and efficient, saving operation time and improving the success rate of operation.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the electrode clamp of this embodiment;

FIG. 2 is a schematic diagram of the overall structure of the electrode clamp of the present embodiment from another perspective;

3 is a schematic diagram of the overall internal structure of the electrode clamp of the present embodiment;

FIG. 4 is a schematic diagram of the internal partial structure of the electrode clamp of the present embodiment;

5 is a cross-sectional view of the electrode clamp head assembly of the present embodiment;

6 is a cross-sectional view of the electrode forceps support handle of the present embodiment;

7 is a schematic diagram of the electrode clamp electrocoagulation tissue of the present embodiment;

Fig. 8 is an enlarged view of the cutter head portion of Fig. 7;

Fig. 9 is the internal partial structure of the electrode clamp in the state of electrocoagulation of the tissue in Fig. 7;

FIG. 10 is a schematic diagram of the electrode forceps of the present embodiment for electrical cutting of thin tissue;

Fig. 11 is an enlarged view of the cutter head portion of Fig. 10;

Fig. 12 is the internal partial structure of the electrode forceps in the state of electric cutting tissue of Fig. 10;

FIG. 13 is a schematic diagram of the electrode forceps electrically cutting thick tissue according to the present embodiment;

Figure 14 is an enlarged view of the cutter head portion of Figure 13;

Fig. 15 is the internal partial structure of the electrode forceps in the state of electric cutting of tissue in Fig. 13 .

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Referring to FIGS. 1-15, FIG. 1 is a schematic diagram of the overall structure of the electrode clamp of this embodiment, FIG. 2 is a schematic diagram of the overall structure of the electrode clamp of this embodiment from another perspective, and FIG. 3 is a schematic diagram of the overall structure of the electrode clamp of this embodiment. 4 is a schematic diagram of the internal partial structure of the electrode forceps of this embodiment, FIG. 5 is a cross-sectional view of the electrode forceps head assembly of this embodiment, FIG. 6 is a cross-sectional view of the electrode forceps support handle of this embodiment, and FIG. 7 is this embodiment. Figure 8 is an enlarged view of the cutter head part of Figure 7, Figure 9 is a partial structure of the electrode forceps in the state of electrocoagulation of the tissue in Figure 7, and Figure 10 is the electrode forceps in this embodiment. Schematic diagram of tissue, Fig. 11 is an enlarged view of the cutter head part of Fig. 10, Fig. 12 is a partial structure of the electrode forceps under the state of electric cutting tissue in Fig. 10, Fig. 13 is a schematic diagram of the electrode forceps in this embodiment for electric cutting of thick tissue, Fig. 14 is a schematic diagram of the tissue. FIG. 13 is an enlarged view of the cutter head part, and FIG. 15 is a partial structure of the electrode forceps in the state of electric cutting of tissue in FIG. 13 .

The electrode forceps provided by the utility model belongs to the field of medical equipment. The electrode forceps adopts electric coagulation energy to provide the use functions of electric coagulation and electric cutting during operation. The tissue is electrically cut, and the linkage limit relationship between the handle of the pusher and the handle of the clamp ensures accurate electrical cutting capability when clamping tissues of different thicknesses. The use of this surgical instrument makes the operation safer, more convenient, more accurate, and Efficient, save operation time and improve the success rate of operation.

In this embodiment, referring to FIG. 1 to FIG. 15 , the electrode forceps includes a mid-pass support tube 13 , a clamp assembly, a push knife assembly, and a support handle 17 .

In this embodiment, the clamp assembly includes a first clamp 11 , a second clamp 12 , a first deformable strip 33 and a second deformable strip 35 that can be elastically deformed. The first clamp 11 is connected to the clamp through the first deformation strip 33 . The clamp drive assembly is fixedly connected, the second clamp 12 is fixedly connected to the clamp drive assembly through the second deformation strip 35, the clamp assembly is penetrated in the middle-pass support tube 13, and the first clamp 11 and the second clamp 12 are spaced apart The settings are mutually insulated; when the clamp handle 16 is triggered to drive the connecting rod 27, the clamp drive assembly drives the first clamp 11 and the second clamp 12 to shrink and move toward the central support tube 13 to clamp the tissue 100, which is convenient for the tissue 100 for stable clamping.

In this embodiment, the connecting sections 112 ( 122 ) of the first clamp 11 and the second clamp 12 are all wrapped with insulation 31 , and the middle-pass support tube 13 is close to the first clamp 11 and the second clamp 12 . One end of the inner tube wall is provided with an insulating guide sleeve 32, and the outer tube wall of the middle-pass support tube 13 is wrapped with an insulating protective sleeve 34 to ensure the connection between the middle-pass support tube 13 and the first clamp 11, the second clamp 12, and the push knife assembly. insulation between.

In this embodiment, the connecting sections 112 ( 122 ) of the first clamp 11 and the second clamp 12 are provided with outwardly protruding limit parts, and the distance between the two limit parts is greater than that of the support pipe 13 The inner diameter of the pipe is limited, and the setting of the limiting portion limits the degree of contraction and movement of the first clamp 11 and the second clamp 12 toward the middle-pass support pipe 13, so as to avoid excessive contraction.

In this embodiment, the clamp drive assembly includes a clamp slider 23 , a clamp rotation sleeve 24 , a clamp slider return spring 26 , and a guide rod 25 ; one end of the clamp slider 23 is connected to the clamp handle 16 through a connecting rod 27 The other end of the clamp slider 23 is connected with the first deformation strip 33 and the second deformation strip 35 through the clamp rotation sleeve 24; the clamp slider 23 is provided with a guide sliding hole, which cooperates with the guide rod 25 to ensure the clamp slider 23 moves smoothly in the axial direction of the guide rod 25 . The first deforming strip 33 and the second deforming strip 35 are connected to the changeover switch sensor 28 at their tails by cables.

In this embodiment, the knife pusher assembly includes a knife pusher 30, a knife pusher linkage mechanism, a knife pusher return spring 20, a limit bar 29 and a knife pusher handle 15; wherein the knife pusher linkage mechanism includes a knife pusher slider 21, a knife pusher Conductive block 22; the pusher slider 21 is fixedly connected to the pusher conductive block 22, and the pusher 30 is connected to the pusher linkage mechanism through its tail 303 in an "L" shape to form a clearance fit; when the pusher handle 15 is triggered Through the guide chute 151 , the contact 211 of the knife pusher slider 21 is driven, so that the knife pusher slider 21 moves to the side of the middle-pass support tube 13 , and the pusher knife 30 pushes out the electric cutting and clamping tissue 100 .

In the present embodiment, the knife push slider 21 is provided with a guide sliding hole, which cooperates with the guide rod 25 to ensure the smooth movement of the knife push block 21 in the axial direction of the guide rod 25 . The push-knife conductive block 22 communicates with the switch sensor 28 through a cable.

The transfer switch sensor 28 is in communication with an external energy device (coagulation energy device) via a cable to receive the coagulation energy. The switching principle of electric coagulation and electric cutting of the electrode forceps provided in this embodiment is consistent with the switching principle described in the patent "A surgical instrument and its operation method".

In the present embodiment, the support tube 13 of the middle pass is fixedly connected with the knob 14 , and the operator can rotate the knob 14 and drive the first clamp 11 , the second clamp 12 and the pusher through the limiting mechanism on the support tube 13 of the pass The knife 30 rotates freely within the range of ±120°, and the clamp assembly and the push knife assembly can be adjusted by rotating the knob 14 according to the position and angle of the target tissue to obtain accurate clamping, electrocoagulation, and electrocution angles.

Preferably, the first clamp 11 and the second clamp 12 are serrated to facilitate fixing the tissue to be cut during use.

In this embodiment, the clamp assembly and the pusher assembly are inserted into the support pipe 13, the pusher 30 is located between the first clamp 11 and the second clamp 12, and is insulated from each other at intervals; the support handle 17 is connected to one end of the support pipe 13 in the middle pass, the switch sensor 28, the clamp drive assembly and the push knife drive assembly are all installed in the inner cavity of the support handle 17, and the clamp handle 16 and the push knife handle 15 are connected to each other through the rotating shaft. The support handle 17 faces the side of the middle-pass support tube 13, and the pusher handle 15 is located above the clamp handle 16, which is convenient for manual triggering operations.

In this embodiment, two sides of the support handle 17 are respectively provided with a thumb support portion 172 and a forefinger support portion 173, and the end face away from the clamp is provided with a concave portion 171 for the palm of the hand to hold. The middle finger, the ring finger and the little finger control the gripper handle 16, and the index finger controls the pusher handle 15, so as to realize simple one-handed operation.

In this embodiment, according to the position and angle of the target tissue, the upper clamp 11 , the lower clamp 12 , the middle-pass support tube 13 , and the pusher 30 are driven by rotating the knob 14 to adjust the clamp assembly and the pusher assembly to obtain accurate Clamping, electric coagulation, electric cutting angle.

When the target tissue is thin tissue 100, the working process of the electrode forceps is as follows, please refer to Fig. 7-Fig. 12 for details:

First, the operator drives the gripper handle 16 to drive the connecting rod 27 so that the gripper slider 23 moves along the axial direction of the guide rod 25 to the side away from the center-pass support tube 13 , and drives the first deformation bar 33 and the second deformation bar 35 They move in the same direction, so that the first clamp 11 and the second clamp 12 shrink and move toward the middle-pass support tube 13; because the tissue 100 to be clamped is thin, the first clamp 11 and the second clamp 12 need to be With a larger retraction distance, the clamp slider 23 needs to move a larger distance to the side away from the center-pass support tube 13 until the first clamp 11 and the second clamp 12 can effectively clamp the tissue 100, as shown in FIG. 8 and FIG. As shown in 9, trigger the coagulation foot switch of the external energy device, and keep the trigger state; through the first clamp 11 (positive pole), the second clamp 12 (negative pole) and the clamped target tissue, a current loop is formed to achieve Electrocoagulation function on target tissue 100 .

To keep the coagulation foot switch of the external energy device in the triggered state, the operator drives the pusher handle 15 and triggers the trigger point 211 of the pusher slider 21 through the guide chute 151 on the pusher handle 15 to drive the pusher slider 21 and the pusher. The conductive block 22 and the push knife assembly 13 move along the axial direction of the guide rod 25 to the side of the support tube 13 , and compress the push knife sliding block return spring 20 ; During the movement of the knife pusher slider 21, the trigger boss 212 is provided on it to trigger the switch pedal 281 set by the switch sensor 28 to realize the conversion of the current loop; at this time, the current loop changes, and the first clamp 11 and the second The two clamps 12 are both negative and the pusher 30 is the positive electrode, forming a current loop; the pusher slider 21 continues to move along the axial direction of the guide rod 25 to the side of the support tube 13 until the limit on the limit bar 29 is reached. Point 291, when the clamp slider 23 collides with the limit point 231, the movement of the pusher slider 21 stops, and the pusher blade 301 and the first clamp 11 and the second clamp 12 leave a design space to avoid their collision and cause the pusher blade 301 In the case of damage or dullness, the pushing blade 301 completes the electrical cutting action on the target tissue 100 .

After the electric cutting is completed, the operator releases the pusher handle 15, and the pusher slider 21 moves along the axial direction of the guide rod 25 to the side away from the middle-pass support tube 13 under the action of the pusher return spring 20 to drive the pusher to conduct electricity. The block 12, the pusher 30 is reset, the triggering boss 212 is separated from the switch pedal 281 that triggers the switch sensor 28, and the switch sensor 28 returns to the initial state; to realize the conversion of the current loop, the first clamp 11 (positive pole), the The second clamp 12 (negative pole), the circuit of the push knife 30 is disconnected; the operator releases the coagulation foot switch of the external energy device, and the electric cutting action is completed.

Next, the operator releases the clamp handle 16, and under the action of the clamp slider reset spring 26, the clamp slider 23 resets and moves to the side of the central support tube 13 along the axial direction of the guide rod 25, and drives the first clamp 11. The first deformed bar 33, the second clamp 12, and the second deformed bar 35 move, and the protruding limit portion of the connecting section 112 (122) of the first clamp 11 and the second clamp 12 is away from the center-pass support On the inner wall of the tube 13 , the first deforming strip 33 and the second deforming strip 35 rebound, and the clamps are opened to release the clamped tissue 100 .

When the target tissue is thick tissue 101, the working process of the electrode forceps is as follows, please refer to Fig. 7-Fig. 9 and Fig. 13-Fig. 15 for details:

First, the operator drives the gripper handle 16 to drive the connecting rod 27 so that the gripper slider 23 moves along the axial direction of the guide rod 25 to the side away from the center-pass support tube 13 , and drives the first deformation bar 33 and the second deformation bar 35 Move in the same direction at the same time, so that the first clamp 11 and the second clamp 12 shrink and move toward the middle-pass support tube 13; because the tissue 100 to be clamped is thick, the first clamp 11 and the second clamp 12 need The retraction distance is small, and after the clamp slider 23 moves a short distance to the side away from the center-pass support tube 13, the first clamp 11 and the second clamp 12 can effectively clamp the tissue 101, see FIG. 14 and Figure 15: Trigger the coagulation foot switch of the external energy device and keep the trigger state; the first clamp 11 (positive electrode), the second clamp 12 (negative electrode) and the clamped target tissue form a current loop to achieve the target Electrocoagulation of tissue 101 .

To keep the coagulation foot switch of the external energy device in the triggered state, the operator drives the pusher handle 15 and triggers the trigger point 211 of the pusher slider 21 through the guide chute 151 on the pusher handle 15 to drive the pusher slider 21 and the pusher. The conductive block 22 and the knife pusher assembly 13 move along the axial direction of the guide rod 25 to the side of the support tube 13 , and compress the knife pusher slider return spring 20 ; During the movement of the knife pusher slider 21, the trigger boss 212 is provided on it to trigger the switch pedal 281 set by the switch sensor 28 to realize the conversion of the current loop; at this time, the current loop changes, and the first clamp 11 and the second The two clamps 12 are both negative and the pusher 30 is the positive, forming a current loop; the pusher slider 21 continues to move a longer distance along the axial direction of the guide rod 25 to the side of the support tube 13 until it reaches the limit bar 29 When the limit point 291 of the clamp slider 23 is in contact with the limit point 231, the movement of the pusher slider 21 stops, and the head of the pusher blade 301 leaves a design space with the first clamp 11 and the second clamp 12 to avoid their collision. In the case that the pushing blade 301 is damaged or dulled, the pushing blade 301 completes the electric cutting action on the target tissue 101 .

Next, the operator releases the clamp handle 16, and under the action of the clamp slider reset spring 26, the clamp slider 23 resets and moves to the side of the central support tube 13 along the axial direction of the guide rod 25, and drives the first clamp 11. The first deformed bar 33, the second clamp 12, and the second deformed bar 35 move, and the protruding limit portion of the connecting section 112 (122) of the first clamp 11 and the second clamp 12 is away from the center-pass support On the inner wall of the tube 13 , the first deforming strip 33 and the second deforming strip 35 rebound, and the clamps are opened to release the clamped tissue 101 .

The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. The present invention has been described in detail with reference to the preferred embodiments. Those skilled in the art should understand that the technical solutions of the present invention should be modified or equivalently replaced. Solutions that do not deviate from the purpose and scope of the technical solution should be included within the scope of the claims of the present invention.

Claims

An electrode forceps, characterized in that: it comprises

Zhongtong support pipe;

a clamp assembly, including a clamp drive assembly, a clamp handle, and a first clamp and a second clamp disposed opposite to each other;

Push knife assembly, including push knife drive assembly, push knife handle and push knife;

The first clamp, the second clamp and the push knife are penetrated in the middle-pass support pipe, and the push knife is located between the first clamp and the second clamp. Location;

The clamp handle is linked with the clamp drive assembly, and the clamp drive assembly drives the first clamp and the second clamp to move into the mid-pass support tube to clamp and coagulate tissue;

The push knife handle is linked with the push knife drive assembly, and the push knife drive assembly drives the push knife to move outward from the middle-pass support tube to cut the electrocoagulated tissue, and the push knife drives The assembly is provided with a limit portion, and the limit portion moves toward the clamp drive assembly to abut the clamp drive assembly.
The electrode clamp according to claim 1, wherein the electrode clamp further comprises:

A support handle is connected to one end of the middle-pass support pipe, the clamp drive assembly and the push knife drive assembly are mounted on the support handle, and the clamp handle and the push knife handle are rotatably connected to the The support handle faces one side of the middle-pass support tube.
The electrode clamp according to claim 2, wherein the distance between the first clamp and the second clamp gradually decreases along the direction toward the mid-pass support tube.
The electrode forceps according to claim 3, wherein the clamp assembly further comprises elastically deformable first deformation strips and second deformation strips, and two ends of the first deformation strips are respectively connected to the first deformation strips. The clamp and the clamp drive assembly are fixedly connected, and the two ends of the second deformation strip are respectively fixedly connected to the second clamp and the clamp drive assembly. When the clamp handle is triggered, the clamp The forceps driving assembly drives the first forceps and the second forceps to retract and move toward the mid-pass support tube, so as to clamp the tissue.
The electrode forceps according to claim 4, wherein the forceps driving assembly comprises a forceps linkage mechanism and a forceps return spring, and the first deformation bar and the second deformation bar are connected with the forceps. One end of the clamp linkage mechanism is connected, the other end of the clamp linkage mechanism is connected with the clamp handle, and the clamp return spring is installed in the inner cavity of the support handle and is connected with the clamp linkage mechanism Abut.
The electrode forceps according to any one of claims 2-5, wherein the knife pusher assembly further comprises a connecting rod, the knife pusher drive assembly comprises a pusher knife return spring and a knife pusher linkage mechanism, and the connecting rod Both ends are respectively connected with the push knife and one end of the push knife linkage mechanism, the other end of the push knife linkage mechanism is connected with the push knife handle, and the push knife return spring is installed on the support handle The inner cavity is in contact with the push-knife linkage mechanism.
The electrode forceps according to claim 6, characterized in that: the knife push linkage mechanism comprises a knife push block and a limit bar, the limit bar is fixedly connected with the knife push block, and the knife push handle has a fixed connection. One end is drivably connected to the pusher block, the limiting bar is provided with the limiting portion, and the limiting portion can abut the clamp drive assembly to stop the movement of the pusher.
The electrode forceps according to claim 7, wherein one end of the pusher handle is drivably connected to the pusher block by being provided with a guide chute.