CN219940774U - Electric coagulation cutter - Google Patents

Abstract

The utility model relates to an electrocoagulation cutter. The clamp head assembly comprises a first clamp body and a second clamp body which are rotationally connected through a first rotating shaft, wherein the first clamp body comprises a first clamping part and a first connecting part which are positioned at two ends of the first rotating shaft, and a first electrode area which is formed at the lower end and the far end of the first clamping part and can be electrified; the second clamp body comprises a second clamping part and a second connecting part, wherein the second clamping part and the second connecting part are positioned at two ends of the first rotating shaft, the second clamping part comprises a second clamping main body part and a convex part which is arranged at the far end of the second clamping main body part and extends upwards, the second clamp body also comprises a second electrode area which is formed at the upper end of the second clamping main body part, is opposite to the first electrode area and can be electrified, and when the clamp head assembly is in a closed state, the first electrode area is positioned in an area formed by the convex part and the second clamping main body part. The electrocoagulation cutter is convenient to operate, good in stability and high in safety.

Description

Electric coagulation cutter

Technical Field

The utility model relates to an electrocoagulation cutter, in particular to an electrocoagulation cutter used under an endoscope.

Background

The endoscope operation is carried out by means of a flexible endoscope, the endoscope enters the body through a natural cavity channel of a human body, a camera at the head end of the endoscope operation can transmit an internal picture to a display screen, and a doctor inserts an elongated flexible instrument through an endoscope working forceps channel to carry out corresponding operation; typically the endoscope is 10-15mm in diameter, while the working jaws are only 2-4mm in diameter. Endoscopic mucosal dissection (ESD) is the mainstream technology of endoscopic treatment, it can safely complete and massive excision of larger lesions, has small trauma, good curative effect, reliability and safety, has the same treatment effect as surgical operation, can eliminate the risk of traditional surgical treatment, becomes an effective means for treating early digestive tract tumors, and more early gastrointestinal cancers are discovered and treated under the endoscope.

In performing the operation, an electrocoagulation device is required to perform tissue separation, and the tissue is incised by high-frequency current. Since the operation requires a mucosa removal operation, the conventional instrument inevitably causes bleeding, which affects the operation efficiency. In addition, because the alimentary canal mucosa wall is thin, the coagulation instrument may be erroneously cut to a non-operation area to cause tissue perforation when performing a burning operation, and serious complications may occur when perforation occurs in an ESD operation. Therefore, in order to ensure more accurate and safe ablation of lesions during ESD operation, it is necessary to reduce the influencing factors during operation.

The conventional instrument is a fixed electrode, the burning and cutting operation is needed to be carried out by swinging the inner lens end, the operation difficulty is high, the learning curve is long, and normal tissues are easy to damage. In addition, the electrodes of the conventional instrument are mostly completely exposed, and the conventional instrument needs to be used with great care, so that medical accidents caused by exceeding the cutting range are avoided, and although researchers can reduce the exposure of the electrodes (such as an O-shaped cutter head) by adding an insulating cap at the end of the electrode, the mode can only cut by using a small area on the side, meanwhile, tissues are difficult to enter the area, the cutting operation is difficult to accurately control, and the operation efficiency is low.

Disclosure of Invention

The utility model aims to provide an electrocoagulation cutter which has good safety performance and is easy to operate.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electrocoagulation cutter comprising a handle assembly and a binding clip assembly disposed at a distal end of the handle assembly, the binding clip assembly comprising a first jaw and a second jaw rotatably connected by a first shaft, the handle assembly being configurable to enable the first jaw and the second jaw to rotate relative to each other for opening or closing, the first jaw comprising a first grip and a first connection at both ends of the first shaft, and a first electrode region formed at a lower end and a distal end of the first grip and capable of being energized;

the second clamp body comprises a second clamping part and a second connecting part which are positioned at two ends of the first rotating shaft, the second clamping part comprises a second clamping main body part and a convex part which is arranged at the far end of the second clamping main body part and extends upwards, the second clamp body also comprises a second electrode area which is formed at the upper end of the second clamping main body part, is opposite to the first electrode area and can be electrified,

the first electrode region is located within a region formed by the tab and the second clamping body portion when the clamp head assembly is in the closed condition.

The forceps head assembly is convenient for clamping and adjusting the tissue position under the endoscope, and improves the operation efficiency. The electrode area capable of being electrified is further arranged at the distal end of the first clamping part, so that when the clamp head assembly is in an open state, the electrode area can be singly used for cutting, and the flexibility is good; the design through the convex part makes the centre gripping more stable on the one hand, and on the other hand when pressing from both sides closed the blood coagulation, avoid first clamping part and second centre gripping main part distal end to discharge and cause the perforation, the security is high.

In some embodiments, when the binding clip assembly is in the closed state, there is a gap between the distal end of the first grip portion and the boss.

In other embodiments, the proximal portion of the protrusion is recessed inwardly to form a recessed region, and the distal end of the first clamping portion is positioned within the recessed region and is not in contact with the inner sidewall of the recessed region when the clamp head assembly is in the closed state.

Preferably, the first clamping part comprises a first clamping main body part and an extension part arranged at the distal end of the first clamping main body part, the width of the distal end part of the first clamping main body part gradually decreases from the near to the far, and the minimum width of the first clamping main body part is larger than or equal to the width of the extension part.

In some embodiments, the first clamping body portion distal end is generally trapezoidal, further having an isosceles trapezoid shape.

Further, the upper surface of the distal end portion of the first clamping body portion and/or the extension portion extends obliquely upward.

Preferably, the distal side wall of the extension forms part of the first electrode region.

In some embodiments, the extension is substantially square.

Preferably, the protrusion is perpendicular to the second clamping body.

Preferably, a first electrode region formed at the lower end of the first clamping portion is located at the middle region of the lower end of the first clamping portion, and extends in the axial direction of the first clamping portion and has a substantially rectangular parallelepiped shape.

Preferably, the second electrode region is located in a middle region of the second clamping body portion, and the second electrode region extends in an axial direction of the second clamping portion and has a substantially rectangular parallelepiped shape.

By coating the insulating layers on the outer surfaces of the first and second clamping portions except the first and second electrode regions, the first and second electrode regions can be formed on the first and second clamping portions, respectively.

Preferably, the length of the first clamping part or the second clamping part is 3-10 mm.

Preferably, the handle assembly comprises a core rod, a sliding assembly axially and slidingly arranged on the core rod, a pipe fitting arranged between the core rod and the clamp head assembly and provided with a first rotating shaft at the far end, and a pull rope arranged in the pipe fitting, one end of the pull rope is connected to the sliding assembly, the other end of the pull rope is connected to the clamp head assembly, and when the sliding assembly slides, the first clamp body and the second clamp body can relatively rotate under the drive of the pull rope.

Still preferably, the pliers head assembly further includes a first link having one end rotatably connected to the first connection part through a second rotation shaft and a second link having one end rotatably connected to the second connection part through a third rotation shaft, and the other ends of the first link and the second link are connected to the other end of the pull rope.

Preferably, the handle assembly further comprises a conductive socket rotatably disposed at the distal end of the core rod, the conductive socket having a conductive contact in contact with the pull cable for energizing the clamp head assembly, the tube being connected to the conductive socket.

Preferably, the handle assembly further comprises a threaded tube disposed between the cable and the tube.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the electrocoagulation cutter, the electrode area capable of being electrified is arranged at the far end of the first clamping part, when the clamp head assembly is in the open state, the electrode area can be singly used for cutting, so that the cutting efficiency is improved, and the flexibility is good; the design through the convex part makes the centre gripping more stable on the one hand, on the other hand when pressing from both sides closed the blood coagulation, avoided first clamping part and second centre gripping main part distal end to discharge and caused the perforation, the security is high.

Drawings

FIG. 1 is a schematic view of a clamp head assembly according to an embodiment of the present utility model in an open configuration;

FIG. 2 is a schematic view of the pliers head assembly of FIG. 1 in a closed configuration;

FIG. 3 is a front view of the binding clip assembly of FIG. 2;

FIG. 4 is an exploded view of the construction of the binding clip assembly of FIG. 1;

FIG. 5 is a schematic view of a clamp head assembly according to another embodiment of the present utility model in an open configuration;

FIG. 6 is a schematic view of the pliers head assembly of FIG. 5 in a closed configuration;

FIG. 7 is an exploded view of the pliers head assembly of FIG. 5;

FIG. 8 is a schematic view of a binding clip assembly coupled to a portion of a handle assembly according to one embodiment of the present utility model;

FIG. 9 is a schematic view of the handle assembly in one embodiment of the utility model;

FIG. 10 is an exploded view of the handle assembly in one embodiment of the present utility model;

wherein: 1. a first clamp body; 11. a first clamping part; 111. a first clamping body portion; 112. an extension; 12. a first connection portion; 13. a first electrode region a; 14. a first electrode region b;

2. a second clamp body; 21. a second clamping portion; 211. a second clamping body portion; 212. a convex portion; 213. a recessed region; 22. a second connecting portion; 23. a second electrode region;

3. a first link;

4. a second link;

5. a first rotating shaft;

6. a second rotating shaft;

7. a third rotating shaft;

8. a handle assembly; 81. a core bar; 811. a chute; 82. a sliding member; 83. a clamping block; 84. a conductive base; 841. a conductive contact; 85. a guy cable; 86. a pipe fitting; 87. a threaded tube; 88. and a fixing piece.

Detailed Description

The utility model will be further described with reference to examples of embodiments shown in the drawings.

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in numerous different ways without departing from the spirit or scope of the embodiments of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In describing embodiments of the present utility model, it should be understood that the terms "distal," "proximal," and the like indicate an orientation or positional relationship defined in terms of the orientation of the electrocoagulation cutter when in use, wherein the side proximal to the operator is the proximal end and the side distal to the operator is the distal end. It is merely for convenience in describing and simplifying the description of embodiments of the present utility model and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the embodiments of the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In embodiments of the utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different implementations, or examples, for implementing different configurations of embodiments of the utility model. In order to simplify the disclosure of embodiments of the present utility model, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present utility model. Furthermore, embodiments of the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

Example 1

An electrocoagulation cutter comprises a handle assembly 8 and a binding clip assembly disposed at a distal end of the handle assembly 8. The forceps head assembly comprises a first forceps body 1 and a second forceps body 2 which are connected through a first rotating shaft 5 in a rotating way, and a closed state (shown in figure 2) that the distal ends of the first forceps body 1 and the second forceps body 2 are close to each other or an open state (shown in figure 1) that the distal ends are far away from each other can be realized through the relative rotation of the first forceps body 1 and the second forceps body 2.

Further, as shown in fig. 1 to 4, the first jaw body 1 includes a first clamping portion 11 and a first connecting portion 12 at both ends of the first shaft 5, and a first electrode region formed at a lower end and a distal end of the first clamping portion 11 and capable of being energized. Through the design of the distal electrode area of the first clamping part 11, the distal end (namely the head end) of the first clamping part 11 can be electrified, and the distal end of the first clamping part 11 can be singly used for cutting, so that the cutting machine is more flexible and convenient. The second clamp body 2 includes a second clamping portion 21 and a second connecting portion 22 at both ends of the first shaft 5, the second clamping portion 21 including a second clamping body portion 211 and a convex portion 212 provided at a distal end of the second clamping body portion 211 and extending upward, the second clamp body 2 further including a second electrode region 23 formed at an upper end of the second clamping body portion 211 and disposed substantially opposite to the first electrode region and capable of being energized. When the clamp head assembly is in a closed state, the first electrode area is located in an area formed by the convex part 212 and the second clamping main body part 211, so that perforation caused by discharge of the distal end of the first clamping part 11 and the distal end of the second clamping main body part 211 is avoided when clamping coagulation is performed, the safety is high, and meanwhile, the convex part 212 is designed to facilitate tissue clamping, so that clamping is stable.

Preferably, the protrusions 212 are perpendicular to the second clamping body.

Further, when the binding clip assembly is in the closed state, there is a gap between the distal end of the first clamping portion 11 and the boss 212. The gap is not easily too large, preferably not more than 1mm, nor too small, preferably not less than 0.1mm.

The first clamping portion 11 includes a first clamping body portion 111 and an extension 112. Wherein the width of the distal end portion of the first clamping body portion 111 gradually decreases from the near to the far and the upper surface thereof extends obliquely upward. In some embodiments, the distal end of the first clamping body portion 111 is generally trapezoidal, and in this example, the distal end of the first clamping body portion 111 is generally isosceles trapezoid. The extension 112 is located at the distal end of the first clamping body portion 111 and is integrally formed with the first clamping body portion 111, the width of the extension 112 is smaller than or equal to the minimum width of the first clamping body portion 111, the upper surface of the extension 112 extends obliquely upward, and the distal end side wall of the extension 112 constitutes a part of the first electrode region, namely the first electrode region a13. The other part of the first electrode region (i.e., the first electrode region b 14) is located in the middle region of the lower end portion of the first clamping portion 11, and the first electrode region b14 extends in the axial direction of the first clamping portion 11 and has a substantially rectangular parallelepiped shape.

The second electrode region 23 is located at an intermediate region of the second clamping body portion 211, and the second electrode region 23 extends in the axial direction of the second clamping portion 21 and has a substantially rectangular parallelepiped shape. By coating the insulating layers on the outer surfaces of the first and second clamping parts 11 and 21 except the first and second electrode regions 23, it is possible to form the first and second electrode regions 23 capable of conducting electricity on the first and second clamping parts 11 and 21, respectively. Thus, the electric conduction at the electrode area can be realized, the energy is more concentrated, the cutting is faster, and the damage to surrounding tissues is smaller.

The length of the first clamping portion 11 or the second clamping portion 21 is preferably 3 to 10mm, more preferably 5 to 8mm. In order to facilitate the smooth passage of the clip assembly through the endoscopic working channel, the height or width of the clip assembly does not exceed the diameter of the endoscopic working channel.

As shown in fig. 4, the pliers head assembly further includes a first link 3 and a second link 4, one end of the first link 3 is rotatably connected to the first connecting portion 12 through a second rotating shaft 6, one end of the second link 4 is rotatably connected to the second connecting portion 22 through a third rotating shaft 7, the other ends of the first link 3 and the second link 4 are connected to the handle assembly 8, and the handle assembly 8 is configured to enable the first pliers body 1 and the second pliers body 2 to rotate relatively to open or close, and the following description of preferred embodiments of the handle assembly 8 will be made by way of example.

As shown in fig. 8 to 10, the handle assembly 8 includes a stem 81, a sliding assembly, a conductive socket 84, a cable 85, and a tube 86. Wherein the sliding assembly is slidably disposed on the core bar 81 in the axial direction of the core bar 81. Specifically, the core rod 81 is provided with a sliding groove 811 extending along an axial direction thereof, the sliding assembly includes a block 83 slidably disposed in the sliding groove 811 and a sliding member 82 sleeved on the core rod 81, and the block 83 is fixedly connected with the sliding member 82 through the sliding groove 811.

The conductive seat 84 is rotatably disposed at the distal end of the core rod 81, one end of the pipe 86 is fixedly connected to the conductive seat 84, the other end is connected to the clamp head assembly, specifically, the first rotating shaft 5 fixedly disposed on the pipe 86 is connected to the clamp head assembly, and the clamp head assembly can be driven to rotate together by rotating the conductive seat 84.

The guy cable 85 is arranged in the pipe fitting 86, one end of the guy cable 85 is connected to the sliding component, specifically connected to the clamping block 83, and the other end is connected to the clamp head component, specifically connected to the first connecting rod 3 and the second connecting rod 4. The guy cable 85 has a certain rigidity, and can push the first connecting rod 3 and the second connecting rod 4 under the driving of the sliding component, so as to drive the first forceps body 1 and the second forceps body 2 to rotate to open, or can pull the first connecting rod 3 and the second connecting rod 4 under the driving of the sliding component, so as to drive the first forceps body 1 and the second forceps body 2 to rotate to close. As a preferred example, the cable 85 may be a stainless steel wire. The opening angle can be adjusted by adjusting the sliding distance of the sliding component, and the opening angle is not particularly limited, and preferably 60 degrees of opening angle is realized.

The conductive mount 84 has a conductive contact 841, the conductive contact 841 being in contact with the cable 85 for energizing the clamp head assembly to effect electrocoagulation hemostasis or cutting.

Further, the handle assembly 8 further includes a threaded tube 87 disposed between the cable 85 and the tube 86 and coaxial with the cable 85 and the tube 86, and further, one end of the threaded tube 87 is fixedly connected to the conductive base 84 by a fixing member 88, and the other end is fixedly connected to the tube 86.

Example 2

The electrocoagulation cutter in this embodiment is substantially the same as that of example 1, with the primary difference being the binding clip assembly, which is discussed further below.

As shown in fig. 5 to 7, the first jaw body 1 includes a first clamping portion 11 and a first connecting portion 12 at both ends of the first shaft 5, and a first electrode region formed at a lower end and a distal end of the first clamping portion 11 and capable of being energized.

Further, the first clamping portion 11 includes a first clamping body portion 111 and an extension 112. Wherein the width of the distal end portion of the first clamping body portion 111 gradually decreases from the near to the far and the upper surface thereof extends obliquely upward. In this embodiment, the distal end portion of the first clamping body portion 111 has a substantially isosceles trapezoid shape. The extension 112 is located at the distal end of the first clamping body portion 111 and is integrally formed with the first clamping body portion 111, the width of the extension 112 is smaller than or equal to the minimum width of the first clamping body portion 111, the upper surface of the extension 112 extends obliquely upward, the extension 112 is substantially square, and the distal end side wall of the extension 112 forms a part of the first electrode region, namely the first electrode region a13. Another portion of the first electrode region (i.e., the first electrode region b 14) is located in the middle region of the lower end of the first clamping portion 11, and the first electrode region b14 extends in the axial direction of the first clamping portion 11 and has a substantially rectangular parallelepiped shape.

The second clamp body 2 includes a second clamping portion 21 and a second connecting portion 22 at both ends of the first rotation shaft 5, the second clamping portion 21 including a second clamping body portion 211 and a convex portion 212 provided at a distal end of the second clamping body portion 211 and extending upward, a proximal end portion of the convex portion 212 being recessed inward to form a recessed area 213. When the clamp head assembly is in the closed state, the distal end of the first clamping portion 11 is located in the recessed area 213 and is not in contact with the inner side wall of the recessed area 213, specifically, the distal end of the extension portion 112 is located in the recessed area 213. The second clamp body 2 further includes a second electrode region 23 formed at an upper end of the second clamping body portion 211 and disposed substantially opposite to the first electrode region and capable of being energized.

The pliers head assembly further comprises a first connecting rod 3 and a second connecting rod 4, one end of the first connecting rod 3 is rotatably connected with the first connecting part 12 through a second rotating shaft 6, one end of the second connecting rod 4 is rotatably connected with the second connecting part 22 through a third rotating shaft 7, the other ends of the first connecting rod 3 and the second connecting rod 4 are connected to a handle assembly 8, and the handle assembly 8 can be configured to enable the first pliers body 1 and the second pliers body 2 to rotate relatively to open or close. The dimensions of the binding clip assembly are described in reference to example 1 and will not be repeated here.

The electrocoagulation cutter has at least the following advantages:

(1) Through the setting of binding clip subassembly, be convenient for clamp under the scope and get, adjust the tissue position, promoted operation efficiency to need not to remove the scope when cutting the tissue, only need to clip the back excitation current and can accomplish the cutting, convenient operation, the study degree of difficulty is low.

(2) The arrangement of the distal electrode region of the first clamping part 11 can realize distal conduction, so that the cutting operation is convenient and flexible, and the cutting efficiency is improved.

(3) The provision of the protrusions 212 of the second clamping portion 21 facilitates the clamping of tissue on the one hand and renders the jaw assembly head end non-conductive on the other hand, without causing accidental perforation.

(4) After the clamp head assembly is clamped, only the electrode area is conductive, so that the clamp head assembly is more concentrated in energy, faster in cutting and less in damage to surrounding tissues.

(5) Compared with the traditional instrument which needs to be excited and then moved to cut, the clamp head assembly can be excited after clamping tissues, has stronger controllability and is not easy to cause accidents.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (10)

1. The utility model provides an electrocoagulation cutter, includes handle assembly and sets up the binding clip subassembly of handle assembly distal end, the binding clip subassembly includes the first pincers body and the second pincers body that are connected through first pivot phase rotation, the handle assembly can be configured to make the first pincers body with the second pincers body can rotate relatively in order to open or close, its characterized in that: the first clamp body comprises a first clamping part and a first connecting part which are positioned at two ends of the first rotating shaft, and a first electrode area which is formed at the lower end and the far end of the first clamping part and can be electrified;

the second clamp body comprises a second clamping part and a second connecting part which are positioned at two ends of the first rotating shaft, the second clamping part comprises a second clamping main body part and a convex part which is arranged at the far end of the second clamping main body part and extends upwards, the second clamp body also comprises a second electrode area which is formed at the upper end of the second clamping main body part, is opposite to the first electrode area and can be electrified,

the first electrode region is located within a region formed by the tab and the second clamping body portion when the clamp head assembly is in the closed condition.

2. The electrocoagulation cutter of claim 1, wherein: when the clamp head assembly is in a closed state, a gap is formed between the distal end of the first clamping portion and the convex portion.

3. The electrocoagulation cutter of claim 1, wherein: the proximal end portion of the protrusion is recessed inwardly to form a recessed region, and when the clamp head assembly is in a closed state, the distal end of the first clamping portion is positioned in the recessed region and is not in contact with the inner side wall of the recessed region.

4. An electrocoagulation cutter as claimed in any one of claims 1 to 3, wherein: the first clamping part comprises a first clamping main body part and an extension part arranged at the far end of the first clamping main body part, the width of the far end part of the first clamping main body part gradually decreases from the near to the far, and the minimum width of the first clamping main body part is larger than or equal to the width of the extension part.

5. The electrocoagulation cutter of claim 4 wherein: the first clamping body portion distal end portion being generally trapezoidal; and/or the number of the groups of groups,

the extension is substantially square; and/or the number of the groups of groups,

the upper surface of the distal end portion of the first clamping body portion and/or the extension portion extends obliquely upward; and/or, a distal sidewall of the extension forms a portion of the first electrode region.

6. The electrocoagulation cutter of claim 1, wherein: the convex portion is perpendicular to the second clamping body.

7. The electrocoagulation cutter of claim 1, wherein: a first electrode region formed at the lower end of the first clamping portion is located at the middle region of the lower end of the first clamping portion, extends along the axial direction of the first clamping portion and is approximately rectangular; and/or the number of the groups of groups,

the second electrode region is located in a middle region of the second clamping body portion, extends along an axial direction of the second clamping portion, and is approximately cuboid.

8. The electrocoagulation cutter of claim 1, wherein: the length of the first clamping part or the second clamping part is 3-10 mm.

9. The electrocoagulation cutter of claim 1, wherein: the handle assembly comprises a core rod, a sliding assembly arranged on the core rod in a sliding manner along the axial direction of the core rod, a pipe fitting arranged between the core rod and the clamp head assembly and provided with a first rotating shaft at the far end, and a pull rope arranged in the pipe fitting, wherein one end of the pull rope is connected to the sliding assembly, the other end of the pull rope is connected to the clamp head assembly, and when the sliding assembly slides, the first clamp body and the second clamp body can relatively rotate under the drive of the pull rope.

10. The electrocoagulation cutter of claim 9, wherein: the clamp head assembly further comprises a first connecting rod with one end rotationally connected with the first connecting part through a second rotating shaft and a second connecting rod with one end rotationally connected with the second connecting part through a third rotating shaft, and the other ends of the first connecting rod and the second connecting rod are connected to the other end of the inhaul cable; and/or, the handle assembly further comprises a conductive seat rotatably arranged at the distal end of the core rod, the conductive seat is provided with a conductive joint, the conductive joint is contacted with the inhaul cable and used for electrifying the clamp head assembly, and the pipe fitting is connected to the conductive seat;

and/or the handle assembly further comprises a threaded tube disposed between the cable and the tube.