Water control type bipolar electrocoagulation forceps

Abstract

The invention relates to water control type bipolar electrocoagulation forceps, and belongs to the field of medical instruments, the water control type bipolar electrocoagulation forceps comprise a handle, an electrode assembly and a cooling pipe, the handle is connected with an operation pipe, the electrode assembly comprises two electrode forceps, the electrode forceps are located at the end, away from the handle, of the operation pipe, and the cooling pipe is located in the handle; one end of the cooling pipe is connected and communicated with the operation pipe, the cooling pipe is a hose, a flow control assembly is arranged in the handle and comprises a flow control sliding block, the flow control sliding block is connected with the handle in a sliding mode, and the flow control sliding block exerts pressure on the side wall of the cooling pipe to enable the cooling pipe to deform. According to the electrocoagulation forceps, the cooling pipe used for supplying the cooling liquid is actively blocked, the water dripping amount at the end of the electrocoagulation forceps in the non-working state is reduced, and the operation convenience in the operation process is improved.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a water-controlled bipolar electrocoagulation forceps. Background Art

[0002] Electrocoagulation forceps are mainly used for electrocoagulation hemostasis or tissue cutting. The heat generated by the electric current coagulates the blood vessels and quickly cuts the tissue to achieve the effect of hemostasis.

[0003] If the electrocoagulation forceps overheat during use, surgical problems such as incomplete hemostasis may occur. Therefore, some electrocoagulation forceps are provided with a functional structure that realizes cooling of the forceps head by connecting to a physiological saline drip tube. For example, the invention application with publication number CN110638520A discloses an electrocoagulation forceps, which includes a handle, an electrode assembly, an inner tube and an outer tube assembly. A cooling water pipe is provided in the handle, and a coolant flow hole is provided at the end of the inner tube. When the electrode assembly is working, cooling water is introduced into the cooling water pipe, and the cooling water eventually flows out from the end of the inner tube and contacts the electrode, thereby achieving the purpose of cooling the electrode tip.

[0004] During the entire surgical process, when the electrocoagulation forceps are not in use, the supply source of coolant is continuously turned on, and water keeps dripping from the end of the electrocoagulation forceps, making it inconvenient for the doctor to operate. Summary of the invention

[0005] In order to improve the above problems, the present application provides a water-controlled bipolar electrocoagulation forceps.

[0006] The water-controlled bipolar electrocoagulation forceps provided in this application adopts the following technical solution: A water-controlled bipolar electrocoagulation forceps comprises a handle, an electrode assembly and a cooling tube, wherein the handle is connected to an operating tube, the electrode assembly comprises two electrode clamps, the electrode clamps are located at one end of the operating tube away from the handle, the cooling tube is located in the handle, one end of the cooling tube is connected and communicated with the operating tube, the cooling tube is a hose, a flow control assembly is provided in the handle, the flow control assembly comprises a flow control slider, the flow control slider is slidably connected to the handle, and the flow control slider applies pressure to the side wall of the cooling tube to deform the cooling tube.

[0007] By adopting the above technical solution, during the operation, when the electrode clamp switches between the working state and the non-working state, the flow control component controls the movement of the flow control slider, changes the pressure applied to the cooling tube, controls the conduction of the inner cavity of the cooling tube, and further controls the circulation of the coolant, thereby realizing the functions of conducting the cooling tube in the working state and closing the cooling tube in the non-working state, thereby reducing the amount of water dripping at the end of the electrocoagulation clamp in the non-working state.

[0008] Preferably, the flow control assembly includes a control spring and a button part, one end of the control spring is connected to the flow control slider, and the other end is connected to the handle, the extension and contraction direction of the control spring is parallel to the sliding direction of the flow control slider, the button part is fixedly connected to the flow control slider, and the button part extends out of the handle at one end away from the flow control slider.

[0009] Preferably, the operating tube comprises an inner tube and an outer tube, one end of the inner tube is fixedly connected to the handle, and the other end is fixedly connected to the electrode clamp, the outer tube is sleeved on the inner tube and slides relative to the inner tube, and the cooling tube is connected to the inner tube; the electrode assembly comprises an operating handle, a driving block and a reset spring, the driving block is slidably connected to the handle, one end of the reset spring is connected to the handle, and the other end is connected to the driving block, the driving block is fixedly connected to the outer tube, the operating handle and the handle are hinged, and the operating handle applies a sliding thrust to the driving block when the handle is rotated toward the handle, one end of the outer tube abuts against the electrode clamp, and the operating handle abuts against the button part toward the side of the handle, and when the operating handle applies a thrust to the button part, the button part and the flow control slider move, and the pressure of the flow control slider on the cooling tube is reduced.

[0010] By adopting the above technical solution, the staff's gripping action of the operating handle during the operation can trigger the button part and push the flow control slider, thereby achieving the purpose of the flow control component and reducing the operating burden of the staff.

[0011] Preferably, the end of the cooling tube away from the operating tube is connected to a water supply pipe, the tensile strength of the material of the water supply pipe is greater than the tensile strength of the material of the cooling tube, a limiting ring is fixedly connected to the side wall of the end of the water supply pipe close to the cooling tube, a stop ring platform is fixedly connected inside the handle, the stop ring platform and the limit ring abut against the side facing away from the cooling tube, a metal tube is sleeved on the end of the cooling tube close to the water supply pipe, the metal tube is coaxially inserted into the water supply pipe, and there is interference fit between the cooling tube and the metal tube, as well as between the water supply tube and the metal tube.

[0012] By adopting the above technical solution, when the water supply pipe is subjected to tension outside the handle, it tends to move outward, and the stop ring and the limit ring abut against the side of the cooling pipe away from the cooling pipe, so that the water supply pipe cannot move outward, and the tension applied to the cooling pipe is very small, thereby basically avoiding the possibility of the cooling pipe being damaged by tension.

[0013] Preferably, positioning folds are formed on the tube walls at both ends of the inner tube, the length direction of the positioning fold is consistent with the length direction of the inner tube, the two electrode clamps are respectively located on opposite sides of the positioning folds, and a transition block is relatively fixed in the handle, and the transition block and the end of the inner tube away from the electrode clamp are fixed by the positioning fold.

[0014] Preferably, the electrode assembly includes two electrode wires, a single electrode wire is connected to an electrode clamp, the electrode wire and the cooling tube both pass through an inner tube, and the inner cavity of the inner tube at one end away from the electrode clamp is sealed by glue injection.

[0015] By adopting the above technical solution, the end of the inner tube away from the handle and the two electrode clamps are relatively positioned circumferentially through the positioning fold, and at the same time, the end of the inner tube connected to the handle is used to circumferentially position the inner tube through the positioning fold, so that the assembly angle position of the two electrode clamps relative to the handle can be determined, which provides convenience for surgical operations.

[0016] Preferably, the cooling tube is connected to and coupled with a telescopic bellows, the telescopic bellows being located between the flow control slider and the inner tube, an adjusting member being provided in the handle, the adjusting member being used to control the extension and retraction of the telescopic bellows, when the inner cavity of the cooling tube is connected, the telescopic bellows is in a compressed state, and when the inner cavity of the cooling tube is blocked due to pressure, the telescopic bellows is in an expanded state.

[0017] By adopting the above technical solution, the internal volume of the telescopic bellows increases when it expands, generating negative pressure, which plays a certain role in absorbing and storing the coolant inside the cooling tube, reducing the amount of coolant in the cooling tube and the inner tube, and at the same time making the coolant in the inner tube tend to move away from the inner tube port, reducing the probability of coolant overflowing from the inner tube port.

[0018] Preferably, the telescopic direction of the telescopic bellows is parallel to the sliding direction of the flow control slider, and the adjusting member is an adjusting rod, one end of which is fixedly connected to the flow control slider, and the other end is connected to the end of the telescopic bellows away from the cooling pipe.

[0019] By adopting the above technical solution, the telescopic deformation of the telescopic bellows and the moving state of the flow control slider are synchronized.

[0020] Preferably, the flow control component includes an auxiliary block, and the auxiliary block and the handle slide relative to each other, and the sliding direction is parallel to the sliding direction of the flow control slider. An auxiliary spring is connected between the auxiliary block and the handle, and the expansion and contraction direction of the auxiliary spring is consistent with the expansion and contraction direction of the control spring. In a natural state, the auxiliary block and the flow control slider apply opposite pressure to the cooling pipe, and in the process of the operating handle pushing the button part to move, the stroke of the flow control slider is greater than the stroke of the auxiliary block.

[0021] By adopting the above technical solution, when the cooling pipe is blocked, the telescopic bellows is still in a dynamic expansion process after the inner cavity of the cooling pipe is sealed, and when the cooling pipe is connected, the telescopic bellows is still in a dynamic compression process after the inner cavity of the cooling pipe is unblocked, that is, the telescopic deformation of the telescopic bellows has a lag relative to the unblocking change of the cooling pipe. This setting is intended to reduce the influence of the water volume that can isolate the cooling pipe near the water supply pipe end during the expansion of the telescopic bellows on the water volume in the inner pipe.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the setting of the flow control component, during the operation, when the electrode clamp is switched between the working state and the non-working state, the flow control component controls the flow control slider to move, changes the pressure applied to the cooling tube, controls the conduction of the inner cavity of the cooling tube, and further controls the circulation of the coolant, so as to realize the function of conducting the cooling tube in the working state and closing the cooling tube in the non-working state, and reduce the dripping amount at the end of the electrocoagulation clamp in the non-working state; 2. Through the setting of the positioning fold, the end of the inner tube away from the handle and the two electrode clamps are relatively positioned circumferentially through the positioning fold. At the same time, the end of the inner tube connected to the handle is used to position the inner tube circumferentially through the positioning fold, so that the assembly angle position of the two electrode clamps relative to the handle can be determined, which provides convenience for surgical operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the water-controlled bipolar electrocoagulation forceps in the first embodiment of the present application.

[0024] Figure 2 It is a schematic cross-sectional view of the structure used to illustrate the connection between the cooling pipe and the water supply pipe in the first embodiment of the present application.

[0025] Figure 3 It is a schematic diagram of the structure inside the transition block in the first embodiment of the present application.

[0026] Figure 4 It is a structural diagram used to reflect the flow control component in Example 2 of the present application.

[0027] Figure 5 It is a structural diagram used to reflect the flow control component in Example 2 of the present application.

[0028] Explanation of the reference numerals: 1. handle; 11. stop ring; 12. transition block; 2. electrode assembly; 21. electrode clamp; 22. electrode wire; 23. operating handle; 231. control pin; 24. drive block; 241. oblique long hole; 25. reset spring; 3. operating tube; 31. outer tube; 32. inner tube; 321. positioning fold; 4. cooling tube; 41. metal tube; 42. water supply tube; 421. limit ring; 43. telescopic bellows; 5. flow control assembly; 51. flow control slider; 511. control hole; 512. button part; 52. control spring; 53. matching rod; 54. adjusting part; 55. auxiliary block; 56. auxiliary spring. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 This application is described in further detail.

[0030] Embodiment 1: The present application embodiment discloses a water-controlled bipolar electrocoagulation forceps, such as Figure 1 As shown, it includes a handle 1, an operating tube 3, an electrode assembly 2 and a cooling tube 4. One end of the operating tube 3 is connected to the handle 1, serving as an installation base for the electrode assembly 2. The electrode assembly 2 is used for performing electrocoagulation surgery, and includes two electrode clamps 21. The two electrode clamps 21 are located at one end of the operating tube 3 away from the handle 1; the cooling tube 4 is used to transport cooling liquid to the electrode clamps 21.

[0031] like Figure 1 As shown, the operating tube 3 includes an inner tube 32 and an outer tube 31, one end of the inner tube 32 is fixedly connected to the handle 1, and the other end is fixedly connected to the electrode clamp 21, and one end of the two electrode clamps 21 are inserted into the tube mouth of the inner tube 32, and the ends of the two electrode clamps 21 located outside the inner tube 32 are in an expanded posture. The outer tube 31 is sleeved on the inner tube 32 and slides relative to the inner tube 32. The electrode assembly 2 also includes an operating handle 23, a drive block 24 and a reset spring 25. The drive block 24 is slidably connected to the handle 1, and the sliding direction is parallel to the length direction of the inner tube 32. One end of the reset spring 25 is connected to the handle 1, and the other end is connected to the drive block 24. The drive block 24 is fixedly connected to the outer tube 31. The operating handle 23 is hinged to the handle 1, and a control pin 231 is fixedly connected to the operating handle 23. The driving block 24 is provided with an oblique long hole 241 for the control pin 231 to pass through. When the staff member holds the operating handle 23 and rotates it toward the handle 1, the control pin 231 generates abutment force on the hole wall of the oblique long hole 241, and thereby applies a sliding thrust to the driving block 24, so that the driving block 24 and the outer tube 31 slide toward the direction close to the electrode clamp 21, and the reset spring 25 is compressed. The tube end of the outer tube 31 simultaneously abuts against the side of the two electrode clamps 21 that are away from each other, so that the two electrode clamps 21 are deformed to have a tendency to approach each other, so that the electrocoagulation forceps can clamp the biological tissue. When the staff member releases the operating handle 23, the driving block 24 returns to its position under the action of the reset spring 25, and the operating handle 23 is also released. In this embodiment, there are two operating handles 23, and the two operating handles 23 are respectively located on opposite sides of the handle 1.

[0032] like Figure 1 and 2As shown, the cooling tube 4 is a silicone hose, one end of which is inserted into the inner tube 32, and the other end is sleeved with a metal tube 41. The end of the metal tube 41 away from the cooling tube 4 is provided with a PVC water supply pipe 42, and the metal tube 41 is coaxially inserted into the water supply pipe 42. There is an interference fit between the cooling tube 4 and the metal tube 41, and between the water supply pipe 42 and the metal tube 41. The end of the water supply pipe 42 away from the cooling tube 4 extends out of the handle 1 and is connected to a water supply facility. A limit ring 421 is integrally formed on the side wall of one end of the water supply pipe 42 close to the cooling pipe 4, and a stop ring platform 11 is fixedly connected to the handle 1. The water supply pipe 42 passes through the stop ring platform 11. When the water supply pipe 42 is subjected to tension outside the handle 1, it tends to move outward. The stop ring platform 11 and the limit ring 421 abut against the side away from the cooling pipe 4, and the water supply pipe 42 cannot move outward. The diameter of the water supply pipe 42 is 6 mm, and the diameter of the cooling pipe 4 is 2 mm. Since the tensile strength of PVC is greater than that of silicone, the possibility of damage to the cooling pipe 4 due to tension is basically avoided.

[0033] like Figure 1 and 3 As shown, the electrode assembly 2 includes two electrode wires 22, and a single electrode wire 22 passes through an inner tube 32 and is connected to an electrode clamp 21; the material of the inner tube 32 is stainless steel, and positioning folds 321 are stamped on the tube walls at both ends of the inner tube 32, and there are two positioning folds 321 at each end, and the two positioning folds 321 are symmetrically arranged relative to the axis of the inner tube 32, and the length direction of the positioning fold 321 is consistent with the length direction of the inner tube 32. The two electrode wires 22 are located on opposite sides of the positioning fold 321, the cooling tube 4 is located between the two wires, and the inner cavity of the end of the inner tube 32 away from the electrode clamp 21 is sealed by glue injection, so that the inner and outer parts of the inner tube 32 are separated at this end, and the electrode wire 22, the cooling tube 4 and the inner tube 32 are relatively fixed. The two electrode clamps 21 are also located on opposite sides of the positioning fold 321. The inner tube 32 clamps the two electrode clamps 21 while being stamped and formed at the positioning fold 321. At the same time, the port of the inner tube 32 close to the electrode clamp 21 still has a gap for the coolant to flow out. A transition block 12 is relatively fixed in the handle 1. The transition block 12 and the end of the inner tube 32 away from the electrode clamp 21 are fixed by the positioning fold 321, thereby realizing the circumferential fixation of the inner tube 32 relative to the handle 1, and the assembly angle position of the two electrode clamps 21 relative to the handle 1 is also determined. The side wall of the transition block 12 is provided with a through hole for the electrode wire 22 to pass through, and the end of the transition block 12 away from the inner tube 32 is provided with a through hole for the cooling tube 4 to pass through, that is, the electrode wire 22 and the cooling tube 4 are separated by the transition block 12. The rear end of the electrode wire 22 and the handle 1 also have a matching structure similar to that of the stop ring 11 and the limit ring 421, which will not be repeated here.

[0034] like Figure 1 and 3As shown, a flow control component 5 is provided in the handle 1, and the flow control component 5 is used to control whether the cooling tube 4 is conductive or not. The flow control component 5 includes a flow control slider 51, a control spring 52 and a button portion 512. The flow control slider 51 is slidably connected to the handle 1, and the sliding direction is perpendicular to the length direction of the operating tube 3. One end of the control spring 52 is fixedly connected to the flow control slider 51, and the other end is fixedly connected to the handle 1. The expansion and contraction direction of the control spring 52 is parallel to the sliding direction of the flow control slider 51. The button portion 512 is integrally formed at one end of the flow control slider 51 away from the control spring 52, and one end of the button portion 512 away from the flow control slider 51 extends out of the handle 1 and is close to one of the operating handles 23. In a natural state, the flow control slider 51 applies pressure to the side wall of the cooling tube 4 to deform the cooling tube 4, flatten the cooling tube 4, and the inner cavity of the cooling tube 4 is not conductive, and the coolant cannot flow to the inner tube 32. When the operating handle 23 is rotated toward the handle 1, it abuts against the button part 512 and applies a thrust to it. The button part 512 and the flow control slider 51 move, and the pressure of the flow control slider 51 on the cooling tube 4 is reduced. The shape of the cooling tube 4 is restored, and its inner cavity is conductive, so that the coolant can flow into the inner tube 32 and finally contact the electrode clamp 21.

[0035] like Figure 3 As shown, the flow control slider 51 is provided with a control hole 511 for the cooling tube 4 to pass through, and a matching rod 53 is fixedly connected inside the transition block 12, and the matching rod 53 also passes through the control hole 511. In a natural state, the hole wall of the control hole 511 close to the control spring 52 and the matching rod 53 respectively abut against the opposite sides of the cooling tube 4, thereby flattening the cooling tube 4. When the button portion 512 receives a thrust, the flow control slider 51 slides, and the hole wall of the control hole 511 that originally abuts against the cooling tube 4 moves away from the matching rod 53, so that the cooling tube 4 can restore its shape.

[0036] Embodiment 2: like Figure 4 and 5As shown, in embodiment 1, when the operating handle 23 is released, the electrode clamp 21 is released, the flow control slider 51 is reset, and the cooling tube 4 is blocked. At this time, coolant still remains in the cooling tube 4 and the inner tube 32 between the flow control slider 51 and the electrode clamp 21. Since the end of the inner tube 32 is open, the coolant may still overflow from the end of the inner tube 32. In this embodiment, the cooling tube 4 is connected and connected with a telescopic bellows 43, which is located between the flow control slider 51 and the inner tube 32. An adjusting member 54 is provided in the transition block 12, and the adjusting member 54 is used to control the telescopic bellows 43: when the inner cavity of the cooling tube 4 is open, the telescopic bellows 43 is in a compressed state; when the cooling tube 4 is pressurized and the inner cavity is blocked, the telescopic bellows 43 is in an expanded state. When the telescopic bellows 43 expands, its internal volume increases, generating negative pressure, which plays a certain role in absorbing and storing the coolant inside the cooling tube 4, reducing the amount of coolant in the cooling tube 4 and the inner tube 32, and at the same time making the coolant in the inner tube 32 have a tendency to move away from the port of the inner tube 32, reducing the probability of the coolant overflowing from the port of the inner tube 32. The portion of the cooling tube 4 connected to the telescopic bellows 43 and the transition body 12 are relatively fixed by bonding.

[0037] like Figure 4 and 5 As shown, the telescopic direction of the telescopic bellows 43 is parallel to the sliding direction of the flow control slider 51, and the adjusting member 54 is an adjusting rod, one end of which is fixedly connected to the flow control slider 51, and the other end is fixedly installed to the end of the telescopic bellows 43 away from the cooling pipe 4, that is, the telescopic deformation of the telescopic bellows 43 is synchronized with the moving state of the flow control slider 51. The flow control assembly 5 includes an auxiliary block 55, which slides relative to the handle 1, and the sliding direction is parallel to the sliding direction of the flow control slider 51. An auxiliary spring 56 is connected between the auxiliary block 55 and the handle 1, and the telescopic direction of the auxiliary spring 56 is consistent with the telescopic direction of the control spring 52. The auxiliary block 55 passes through the control hole 511. In the natural state, the auxiliary block 55 and the flow control slider 51 apply opposite pressure to the cooling pipe 4, and the auxiliary spring 56 is in a compressed state. During the process of operating the handle 23 pushing the button portion 512 to move, the stroke of the flow control slider 51 is greater than the stroke of the auxiliary block 55. Therefore, when the cooling pipe 4 is blocked, after the inner cavity of the cooling pipe 4 is blocked, the telescopic bellows 43 is still in a dynamic expansion process. When the cooling pipe 4 is turned on, after the inner cavity of the cooling pipe 4 is unblocked, the telescopic bellows 43 is still in a dynamic compression process, that is, the telescopic deformation of the telescopic bellows 43 has a lag relative to the unblocking change of the cooling pipe 4. This setting is intended to reduce the influence of the water volume that can isolate the cooling pipe 4 near the end of the water supply pipe 42 during the expansion of the telescopic bellows 43 on the water volume in the inner tube 32.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water-controlled bipolar electrocoagulation forceps, comprising a handle (1), an electrode assembly (2) and a cooling tube (4), wherein the handle (1) is connected to an operating tube (3), the electrode assembly (2) comprises two electrode clamps (21), the electrode clamps (21) are located at one end of the operating tube (3) away from the handle (1), the cooling tube (4) is located in the handle (1), one end of the cooling tube (4) is connected and communicated with the operating tube (3), and is characterized in that: The cooling pipe (4) is a hose, and a flow control component (5) is provided in the handle (1). The flow control component (5) comprises a flow control slider (51). The flow control slider (51) is slidably connected to the handle (1), and the flow control slider (51) applies pressure to the side wall of the cooling pipe (4) to deform the cooling pipe (4).

2. The water-controlled bipolar electrocoagulation forceps according to claim 1, characterized in that: The flow control assembly (5) comprises a control spring (52) and a button portion (512); one end of the control spring (52) is connected to the flow control slider (51), and the other end is connected to the handle (1); the extension direction of the control spring (52) is parallel to the sliding direction of the flow control slider (51); the button portion (512) is fixedly connected to the flow control slider (51); and one end of the button portion (512) away from the flow control slider (51) extends out of the handle (1).

3. The water-controlled bipolar electrocoagulation forceps according to claim 2, characterized in that: The operating tube (3) comprises an inner tube (32) and an outer tube (31); one end of the inner tube (32) is fixedly connected to the handle (1), and the other end is fixedly connected to the electrode clamp (21); the outer tube (31) is sleeved on the inner tube (32) and slides relative to the inner tube (32); and the cooling tube (4) is connected to the inner tube (32); The electrode assembly (2) comprises an operating handle (23), a driving block (24) and a return spring (25); the driving block (24) and the handle (1) are slidably connected; one end of the return spring (25) is connected to the handle (1) and the other end is connected to the driving block (24); the driving block (24) and the outer tube (31) are fixedly connected; the operating handle (23) and the handle (1) are hinged; when the operating handle (23) is rotated toward the handle (1), a sliding thrust is applied to the driving block (24); one end of the outer tube (31) is in contact with the electrode clamp (21); the operating handle (23) is in contact with a button portion (512) on one side of the handle (1); when the operating handle (23) applies a thrust to the button portion (512), the button portion (512) and the flow control slider (51) move, and the pressure of the flow control slider (51) on the cooling tube (4) is reduced.

4. A water-controlled bipolar electrocoagulation forceps according to any one of claims 1 to 3, characterized in that: The end of the cooling pipe (4) away from the operating pipe (3) is connected to a water supply pipe (42); the tensile strength of the material of the water supply pipe (42) is greater than the tensile strength of the material of the cooling pipe (4); a limit ring (421) is fixedly connected to the side wall of the end of the water supply pipe (42) close to the cooling pipe (4); a stop ring platform (11) is fixedly connected inside the handle (1); the stop ring platform (11) and the limit ring (421) are in contact with each other on the side facing away from the cooling pipe (4); a metal pipe (41) is sleeved on the end of the cooling pipe (4) close to the water supply pipe (42); the metal pipe (41) is coaxially inserted into the water supply pipe (42); and interference fit is formed between the cooling pipe (4) and the metal pipe (41), and between the water supply pipe (42) and the metal pipe (41).

5. The water-controlled bipolar electrocoagulation forceps according to claim 3, characterized in that: Positioning folds (321) are formed on the tube walls of both ends of the inner tube (32), the length direction of the positioning folds (321) is consistent with the length direction of the inner tube (32), the two electrode clamps (21) are respectively located on opposite sides of the positioning folds (321), and a transition block (12) is relatively fixed in the handle (1), and the transition block (12) and the end of the inner tube (32) away from the electrode clamp (21) are matched and fixed through the positioning folds (321).

6. The water-controlled bipolar electrocoagulation forceps according to claim 3 or 5, characterized in that: The electrode assembly (2) comprises two electrode wires (22), a single electrode wire (22) is connected to an electrode clamp (21), the electrode wire (22) and the cooling tube (4) both pass through an inner tube (32), and the inner cavity of one end of the inner tube (32) away from the electrode clamp (21) is sealed by glue injection.

7. The water-controlled bipolar electrocoagulation forceps according to claim 3, characterized in that: The cooling tube (4) is connected to and connected with a telescopic bellows (43), the telescopic bellows (43) being located between a flow control slider (51) and an inner tube (32), an adjusting member (54) being provided inside the handle (1), the adjusting member (54) being used to control the telescopic movement of the telescopic bellows (43), when the inner cavity of the cooling tube (4) is open, the telescopic bellows (43) is in a compressed state, and when the inner cavity of the cooling tube (4) is blocked due to pressure, the telescopic bellows (43) is in an expanded state.

8. The water-controlled bipolar electrocoagulation forceps according to claim 7, characterized in that: The telescopic direction of the telescopic bellows (43) is parallel to the sliding direction of the flow control slider (51); the adjusting member (54) is an adjusting rod, one end of which is fixedly connected to the flow control slider (51), and the other end of which is connected to an end of the telescopic bellows (43) away from the cooling pipe (4).

9. The water-controlled bipolar electrocoagulation forceps according to claim 8, characterized in that: The flow control component (5) comprises an auxiliary block (55), wherein the auxiliary block (55) and the handle (1) slide relative to each other, and the sliding direction is parallel to the sliding direction of the flow control slider (51); an auxiliary spring (56) is connected between the auxiliary block (55) and the handle (1), and the expansion and contraction direction of the auxiliary spring (56) is consistent with the expansion and contraction direction of the control spring (52); in a natural state, the auxiliary block (55) and the flow control slider (51) apply opposite pressure to the cooling pipe (4); when the operating handle (23) pushes the button part (512) to move, the stroke of the flow control slider (51) is greater than the stroke of the auxiliary block (55).

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