Coagulation pliers

Abstract

The invention discloses an electrocoagulation forceps, which comprises an inner tube, an electrode assembly, and an outer tube assembly, wherein the inner tube has a bending portion; the electrode assembly comprises two electrodes whose rear end is connected to the inner tube and whose conductive heads are separated from each other in static state; the outer tube assembly is slidably sleeved outside at least part of the inner tube, and the outer tube assembly is suitable for being moved on the inner tube to act on the two electrodes so that the conductive heads of the two electrodes move between a first position away from each other and a second position close to each other; wherein the outer tube assembly comprises a front electrode action outer tube, a rear action connection outer tube, and a flexible outer tube connected between the front electrode action outer tube and the rear action connection outer tube, which is suitable for acting on the two electrodes when the outer tube assembly is actuated, and the flexible outer tube is partially sleeved outside the bending portion of the inner tube. It can be applied to a bent electrocoagulation forceps, and its outer tube assembly can adapt to the bending shape and realize the opening and closing of the electrocoagulation forceps.

Description

Technical Field

[0001] The invention relates to an electrocoagulation forceps. Background Art

[0002] At present, the refinement and specialization of medical devices is a goal and trend. Electrocoagulation is widely used in surgical operations as an efficient and reliable way to stop bleeding. Electrocoagulation forceps are suitable for use in small channel deep surgeries such as minimally invasive microsurgery, neurosurgery and transcatheter approach surgery. They are particularly suitable for use with nasal endoscopes and ventriculoscopes. They are mainly used for electrocoagulation hemostasis in minimally invasive microsurgery or neurosurgery. Since the operating space of various surgeries is limited, and the larger the surgical incision or channel, the greater the secondary damage to the patient, the surgical channel strives to be minimized and minimally invasive.

[0003] Various shapes of bipolar electrocoagulation forceps are commonly used in existing surgical operations. The main principle is to install two tweezers in a fixed seat, pinch the tweezers with fingers, so that the tips of the two tweezers clamp the blood vessel or tissue, so that the high-frequency current passing through the tips of the two tweezers passes through the clamped local blood vessel or tissue, and utilizes the thermal effect of the high-frequency current to make the blood vessel wall dehydrated and shrink, the blood in the blood vessel coagulate, and the blood vessel and the blood clot merge into one, thereby achieving the purpose of effective hemostasis.

[0004] The front part of the electrocoagulation forceps currently in use is basically a straight structure, and the outer tube can be realized by an integrated tube body. However, in the electrocoagulation forceps with a bent structure at the front part, the outer tube also uses an integrated bent tube, which cannot realize the movement of the outer tube and cannot open and close its electrode part. This outer tube structure cannot be used for electrocoagulation forceps with a bent structure at the front part. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an electrocoagulation forceps which can be suitable for bending electrocoagulation forceps, whose outer tube assembly can adapt to the bending shape and realize the opening and closing of the electrocoagulation forceps.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: an electrocoagulation forceps, which comprises:

[0007] An inner tube, wherein the inner tube has a bending portion;

[0008] An electrode assembly, the electrode assembly comprising two electrodes whose rear ends are connected to the inner tube and whose conductive heads are spaced apart from each other in static state;

[0009] An outer tube assembly, the outer tube assembly is slidably sleeved outside at least a portion of the inner tube, and the outer tube assembly is suitable for being moved on the inner tube to act on the two electrodes so that the conductive heads of the two electrodes move between a first position away from each other and a second position close to each other; wherein,

[0010] The outer tube assembly comprises:

[0011] A front electrode acting on the outer tube adapted to act on the two electrodes when the outer tube assembly is actuated;

[0012] The rear action connects the outer tube;

[0013] A flexible outer tube is connected between the front electrode action outer tube and the rear action connection outer tube, and the flexible outer tube is partially sleeved outside the bending portion of the inner tube.

[0014] In order to better arrange the conductive connection components connecting the electrodes, the electrocoagulation forceps further includes a conductive connection component electrically connected to the two electrodes, and the conductive connection component is suitable for at least partially passing through the lumen of the inner tube.

[0015] In order to not only effectively achieve the effect of electrocoagulation hemostasis, but also to cool the electrode part well, the electrocoagulation forceps also includes a cooling liquid diversion channel connected to the lumen of the inner tube, so that the cooling liquid entering the lumen from the rear end of the inner tube is suitable for being diverted to the electrode assembly through the cooling liquid diversion channel to cool the electrode assembly.

[0016] Furthermore, a cooling liquid flow channel is provided between the outer tube assembly and the inner tube at least on the front end portions of both, for guiding the cooling liquid flowing therethrough to the electrode assembly to cool the electrode assembly, and a cooling liquid flow hole is provided on the tube wall of the inner tube, which is connected to the cooling liquid flow channel to form a cooling liquid guide channel and is connected to the tube cavity of the inner tube.

[0017] Furthermore, the coolant guide channel is a coolant guide groove which is arranged on the tube wall of the inner tube and directly extends to the front end of the inner tube.

[0018] In order to further reasonably arrange the conductive connection components and the cooling channel, the electrocoagulation forceps further includes:

[0019] A conductive connection component electrically connected to the two electrodes, wherein the conductive connection component is adapted to at least partially penetrate the lumen of the inner tube;

[0020] A separator is connected to the rear end of the inner tube, and is provided with a first through hole for passing the conductive connection component and a coolant hole suitable for being connected to the coolant tube and communicating with the inner tube cavity.

[0021] In order to further prevent the coolant from leaking from the rear of the outer tube assembly, a sealing structure for sealing the coolant guide channel is provided between the rear end of the outer tube assembly and the inner tube.

[0022] Furthermore, the electrocoagulation forceps also includes a fixing assembly and an actuating mechanism that is at least partially movably connected to the fixing assembly and connected to the outer tube assembly, wherein the actuating mechanism is suitable for moving the outer tube assembly on the inner tube to act on the two electrodes so that the conductive heads of the two electrodes move between a first position away from each other and a second position close to each other.

[0023] A specific structure of an action mechanism capable of pushing the outer tube assembly to move is further provided, wherein the action mechanism comprises a push block, an elastic member and an operating assembly; wherein,

[0024] The operating component is movably connected to the fixing component;

[0025] The pushing block is connected to the rear end of the outer tube assembly;

[0026] The elastic member and the operating assembly are respectively connected to the pushing block, so that the pushing block moves under the combined action of the elastic member and the operating assembly, thereby driving the outer tube assembly to move on the inner tube.

[0027] Further, the pushing block is slidably arranged on the inner tube;

[0028] The operating assembly includes at least one handle, the rear end of the handle is pivotally connected to the fixing assembly, and the front end of the handle is connected to the pushing block through an action structure; wherein,

[0029] When the handle is actuated to rotate toward the inner tube side, the handle is adapted to apply at least one force to the pushing block through the action structure to overcome the elastic force of the elastic member to move forward, so that the conductive heads of the two electrodes move from the first position to the second position;

[0030] When the handle is not in motion, the pushing block is adapted to move backwards under the elastic force of the elastic member, so that the conductive heads of the two electrodes move from the second position to the first position and push the handle to reset through the action structure.

[0031] Furthermore, the action mechanism includes:

[0032] A push pin provided on the corresponding handle;

[0033] An inclined slide groove is arranged on the corresponding side of the pushing block and is arranged obliquely, and a pushing pin on the corresponding handle is embedded in the inclined slide groove on the corresponding side of the pushing block.

[0034] Furthermore, the elastic member is a spring which is sleeved on the pushing block and abuts against the fixing component.

[0035] Furthermore, the fixing assembly is provided with a stopper for limiting the moving stroke of the pushing block.

[0036] Further, the pushing block is slidably arranged on the inner tube;

[0037] After adopting the above technical solution, the present invention has the following beneficial effects:

[0038] 1. The present invention provides an outer tube assembly with a three-section structure, wherein the middle section is a flexible outer tube, and the two ends are a front electrode action outer tube with relatively high strength and a rear action connecting outer tube. The flexible outer tube is adapted to the bending portion of the inner tube. When the outer tube assembly moves, the flexible outer tube moves on the inner tube, and the two electrodes are opened and closed by the front electrode acting on the outer tube, thereby realizing the opening and closing of the electrocoagulation forceps bent at the front, which is easy to use.

[0039] 2. The inner tube of the present invention can be used not only as a channel for the coolant, but also as a channel for the conductive connection component. In the present invention, the electrode assembly can be cooled in two specific ways, wherein one way is: the coolant can be directly guided to the electrode assembly through the coolant guide groove at the front end of the inner tube, and the other way is: a coolant flow channel is set between the front end of the outer tube assembly and the front end of the inner tube to guide the coolant flowing therethrough to the electrode assembly to cool the electrode assembly, and coolant flow holes are provided on the inner tube that are respectively connected to the inner tube cavity and the coolant flow channel. The coolant entering the tube cavity from the rear end of the inner tube flows to the coolant flow channel through the coolant flow holes, and then is guided to the electrode assembly to cool the electrode assembly. At the same time, the conductive connection component connecting the two electrodes passes through the inner tube cavity, and the conductive connection component and the coolant can be separated by a separator.

[0040] 3. In addition, the opening and closing of the two electrodes are controlled by the action mechanism. When the operator applies pressure to the handle, the push pin on the handle slides in the inclined groove on the push block, converting the radial force into an axial force, pushing the outer tube assembly connected to the push block forward, so that the two electrodes are close to each other and closed. When the operator releases the handle, the elastic member resets the push block, and the outer tube assembly connected to the push block follows the reset, so that the two electrodes are away from each other and open. This method well realizes the opening and closing of the two electrodes and improves the success rate of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 The structure of the electrocoagulation forceps of the present invention is schematically shown in FIG. Figure 1 ;

[0042] Figure 2 It is a schematic structural diagram of a separation element of the present invention;

[0043] Figure 3 It is a structural schematic diagram of the push block of the present invention;

[0044] Figure 4 The structure of the electrocoagulation forceps of the present invention is schematically shown in FIG. Figure 2 ;

[0045] Figure 5 This is a partial enlarged view of the front part of the liquid-cooled electrocoagulation forceps;

[0046] Figure 6 It is a schematic structural diagram of another electrocoagulation forceps of the present invention. DETAILED DESCRIPTION

[0047] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0048] Embodiment 1

[0049] like Figures 1 to 5 As shown, an electrocoagulation forceps comprises:

[0050] Inner tube 13;

[0051] An electrode assembly, the electrode assembly comprising two electrodes 17 whose rear ends are connected to the inner tube 13 and whose conductive heads are separated from each other in static state;

[0052] An outer tube assembly, the outer tube assembly is slidably sleeved outside at least a portion of the inner tube 13, and the outer tube assembly is suitable for being moved on the inner tube 13 to act on the two electrodes 17 so that the conductive heads of the two electrodes 17 move between a first position away from each other and a second position close to each other; wherein,

[0053] The outer tube assembly comprises:

[0054] A front electrode acting on the outer tube 16 adapted to act on the two electrodes 17 when the outer tube assembly is actuated;

[0055] The rear action connects the outer tube 12;

[0056] A flexible outer tube 15 is connected between the front electrode action outer tube 16 and the rear action connection outer tube 12.

[0057] In this embodiment, the outer tube assembly is provided with a three-section structure, the middle section is a flexible outer tube 15, and the two ends are a front electrode action outer tube 16 with relatively high strength and a rear action connecting outer tube 12. The flexible outer tube 15 is adapted to the bending portion of the inner tube 13. When the outer tube assembly moves, the flexible outer tube 15 moves on the inner tube 13, and the two electrodes 17 are opened and closed through the front electrode action outer tube 16, thereby realizing the opening and closing of the electrocoagulation forceps with a front bend, which is easy to use.

[0058] Specifically, in this embodiment, since the inner tube 13 has a bending portion, during the movement of the outer tube assembly, the outer tube assembly that cooperates with the bending portion will be deformed to a certain extent. This time, the bending and moving effect can be achieved by providing a flexible outer tube 15. The flexible outer tube 15 can be made of flexible plastic, and the front electrode action outer tube 16 and the rear action connection outer tube 12 can be made of stainless steel.

[0059] Specifically, Figure 1 As shown, the electrocoagulation forceps further comprises a conductive connection component electrically connected to the two electrodes 17, and the conductive connection component is suitable for at least partially passing through the lumen of the inner tube.

[0060] In this embodiment, the conductive connection assembly includes wires respectively connecting the two electrodes and a cable 11 connecting the two wires.

[0061] Specifically, Figure 1 As shown, the electrocoagulation forceps also include a separator 4, which is connected to the rear end of the inner tube 13. The separator 4 is provided with a first through hole 41 for passing the conductive connection component and a cooling liquid hole 42 suitable for being connected to the cooling liquid tube 10 and communicating with the inner tube cavity.

[0062] Specifically, the rear portion of the inner tube 13 is mounted on the separator 4 , and the wires and the coolant flow channel are separated by the separator 4 and connected to the cable 11 and the cooling water pipe 10 respectively.

[0063] In this embodiment, the electrode assembly is cooled in the following manner, and the specific structure is as follows: a cooling liquid flow channel is provided between the outer tube assembly and the inner tube 13 at least on the front end portions of both, so that the cooling liquid flowing therethrough is diverted to the electrode assembly to cool the electrode assembly. The cooling liquid flow channel is specifically a gap between the two tube walls. The tube wall of the inner tube 13 is provided with a cooling liquid flow hole 14 which is connected to the cooling liquid flow channel to form a cooling liquid diversion channel and is connected to the tube cavity of the inner tube 13. The cooling liquid entering the tube cavity from the rear end of the inner tube 13 flows to the cooling liquid flow channel through the cooling liquid flow hole 14, and then is diverted to the electrode assembly to cool the electrode assembly. At the same time, the conductive connection assembly connecting the two electrodes 17 passes through the tube cavity of the inner tube, and the conductive connection assembly and the cooling liquid can be separated by the separator 4.

[0064] In this embodiment, the coolant is cooling water, but is not limited thereto.

[0065] Specifically, Figure 1 As shown, the electrocoagulation forceps also includes a fixing component 2;

[0066] And an actuating mechanism which is at least partially movably connected to the fixed component 2 and connected to the outer tube component, wherein the actuating mechanism is suitable for moving the outer tube component on the inner tube 13 to act on the two electrodes 17 so that the conductive heads of the two electrodes 17 move between a first position away from each other and a second position close to each other.

[0067] In this embodiment, the fixing component 2 may be a housing component.

[0068] Specifically, Figure 1 As shown, the action mechanism includes a push block 6, an elastic member 9 and an operating assembly; wherein,

[0069] The operating component is movably connected to the fixing component 2;

[0070] The pushing block 6 is connected to the rear end of the outer tube assembly;

[0071] The elastic member 9 and the operating assembly are respectively connected to the pushing block 6 , so that the pushing block 6 moves under the combined action of the elastic member 9 and the operating assembly, thereby driving the outer tube assembly to move on the inner tube 13 .

[0072] Specifically, the pushing block 6 is slidably disposed on the inner tube 13;

[0073] The operating assembly includes at least one handle 3, the rear end of the handle 3 is pivotally connected to the fixing assembly 2, and the front end of the handle 3 is connected to the pushing block 6 through an action structure; wherein,

[0074] When the handle 3 is actuated to rotate toward the inner tube side, the handle 3 is adapted to apply at least one force to the pushing block 6 through the action structure to overcome the elastic force of the elastic member 9 to move forward, so that the conductive heads of the two electrodes 17 move from the first position to the second position;

[0075] When the handle 3 is not in action, the pushing block 6 is adapted to move backward under the elastic force of the elastic member 9, so that the conductive heads of the two electrodes 17 move from the second position to the first position and push the handle 3 to reset through the action structure.

[0076] In this embodiment, the operating assembly is symmetrically provided with two handles 3, and the provision of the two handles 3 facilitates operation.

[0077] Specifically, Figure 1 As shown, the action mechanism includes:

[0078] A push pin 5 provided on the corresponding handle 3;

[0079] An inclined slide groove 61 is arranged on the corresponding side of the pushing block 6 and is gradually inclined from the front to the back toward the inner tube side. The pushing pin 5 on the corresponding handle 3 is embedded in the inclined slide groove 61 on the corresponding side of the pushing block 6.

[0080] Specifically, the elastic member 9 may be a spring which is sleeved on the pushing block 6 and abuts against the fixing assembly 2 .

[0081] Specifically, Figure 1 As shown, the fixing assembly 2 is provided with a stopper for limiting the moving stroke of the pushing block 6. The moving stroke of the pushing block 6 is limited by the stopper.

[0082] The opening and closing of the two electrodes 17 are controlled by the action mechanism. When the operator applies pressure to the handle 3, the pushing pin 5 on the handle 3 slides in the inclined groove on the pushing block 6, converting the radial force into an axial force, pushing the outer tube assembly connected to the pushing block 6 forward, so that the two electrodes 17 are close to each other and thus closed. When the operator releases the handle 3, the elastic member 9 resets the pushing block 6, and the outer tube assembly connected to the pushing block 6 is reset accordingly, so that the two electrodes 17 are away from each other and thus open. This method well realizes the opening and closing of the two electrodes 17 and improves the success rate of the operation.

[0083] Specifically, the pushing block 6 is slidably disposed on the inner tube 13;

[0084] The push block 6 is connected to a seal 7 for sealing the coolant guide channel between the rear end of the outer tube assembly and the inner tube 13 through a fixing sleeve 8. The seal 7 may be an O-ring, and the setting of the seal 7 can prevent the coolant from flowing out of the rear of the outer tube assembly.

[0085] Embodiment 2

[0086] The structure of this embodiment is basically the same as that of the first embodiment, except that the structure for cooling the cooling assembly is different. Figure 6 As shown, specifically: the coolant guide channel is a coolant guide groove 14a provided on the tube wall of the inner tube 13 and directly extending to the front end of the inner tube 13. In this embodiment, the inner tube 13 not only passes the wires but also serves as a channel for the coolant. The rear part of the inner tube 13 is installed on the separator 4, and the wires and the coolant flow channel are separated by the separator 4 and connected to the cable 11 and the cooling water pipe 10 respectively. The coolant at the rear end of the inner tube cavity flows directly to the electrode assembly through the coolant guide groove 14a at the front end of the inner tube 13 to cool it.

[0087] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0088] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0089] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0090] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0091] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0092] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. An electrocoagulation forceps, characterized in that: It includes: An inner tube (13), the inner tube having a bent portion; An electrode assembly, the electrode assembly comprising two electrodes (17) whose rear ends are connected to the inner tube (13) and whose conductive heads are separated from each other in a static state; An outer tube assembly, the outer tube assembly being slidably sleeved outside at least a portion of the inner tube (13), the outer tube assembly being adapted to be moved on the inner tube (13) to act on the two electrodes (17) so that the conductive heads of the two electrodes (17) move between a first position away from each other and a second position close to each other; wherein: The outer tube assembly comprises: A front electrode acting outer tube (16) adapted to act on two electrodes (17) when the outer tube assembly is actuated; The rear action connects the outer tube (12); A flexible outer tube (15) connected between the front electrode action outer tube (16) and the rear action connection outer tube (12), wherein the flexible outer tube (15) is partially sleeved outside the bent portion of the inner tube (13); Also included is a cooling liquid guide channel connected to the tube cavity of the inner tube (13), and the cooling liquid entering the tube cavity from the rear end of the inner tube (13) is suitable for being guided to the electrode assembly through the cooling liquid guide channel to cool the electrode assembly; A cooling liquid flow channel is provided between the outer tube assembly and the inner tube (13) at least on the front ends of both for guiding the cooling liquid flowing therethrough to the electrode assembly to cool the electrode assembly, and a cooling liquid flow hole (14) is provided on the tube wall of the inner tube (13) and is connected to the cooling liquid flow channel to form a cooling liquid guide channel and is connected to the tube cavity of the inner tube (13); Also includes: A conductive connection component electrically connected to the two electrodes (17), wherein the conductive connection component is suitable for at least partially passing through the lumen of the inner tube; A separator (4), the separator (4) being connected to the rear end of the inner tube (13), the separator (4) being provided with a first through hole (41) for passing the conductive connection component and a coolant hole (42) adapted to be connected to the coolant tube (10) and communicating with the inner tube lumen; The coolant that enters the tube cavity from the rear end of the inner tube (13) flows to the coolant flow channel through the coolant flow hole (14), and then flows to the electrode assembly to cool the electrode assembly. At the same time, the conductive connection assembly connecting the two electrodes (17) passes through the tube cavity of the inner tube, and the conductive connection assembly and the coolant are separated by the separator (4).

2. An electrocoagulation forceps, characterized in that: It includes: An inner tube (13), the inner tube having a bent portion; An electrode assembly, the electrode assembly comprising two electrodes (17) whose rear ends are connected to the inner tube (13) and whose conductive heads are separated from each other in a static state; An outer tube assembly, the outer tube assembly being slidably sleeved outside at least a portion of the inner tube (13), the outer tube assembly being adapted to be moved on the inner tube (13) to act on the two electrodes (17) so that the conductive heads of the two electrodes (17) move between a first position away from each other and a second position close to each other; wherein: The outer tube assembly comprises: A front electrode acting outer tube (16) adapted to act on two electrodes (17) when the outer tube assembly is actuated; The rear action connects the outer tube (12); A flexible outer tube (15) connected between the front electrode action outer tube (16) and the rear action connection outer tube (12), wherein the flexible outer tube (15) is partially sleeved outside the bent portion of the inner tube (13); Also included is a cooling liquid guide channel connected to the tube cavity of the inner tube (13), and the cooling liquid entering the tube cavity from the rear end of the inner tube (13) is suitable for being guided to the electrode assembly through the cooling liquid guide channel to cool the electrode assembly; The coolant guide channel is a coolant guide groove (14a) provided on the tube wall of the inner tube (13) and directly extending to the front end of the inner tube (13); Also includes: A conductive connection component electrically connected to the two electrodes (17), wherein the conductive connection component is suitable for at least partially passing through the lumen of the inner tube; A separator (4), the separator (4) being connected to the rear end of the inner tube (13), the separator (4) being provided with a first through hole (41) for passing the conductive connection component and a coolant hole (42) adapted to be connected to the coolant tube (10) and communicating with the inner tube lumen; The conductive connection assembly includes electric wires respectively connecting the two electrodes and a cable (11) connecting the two electric wires; The electric wire and the coolant flow channel are separated by a separator (4) and connected to the cable (11) and the coolant inlet pipe (10) respectively. The coolant at the rear end of the inner tube cavity flows directly to the electrode assembly through the coolant guide groove (14a) at the front end of the inner tube (13) to cool the electrode assembly.

3. The electrocoagulation forceps according to claim 1 or 2, characterized in that: A sealing structure for sealing the coolant guide channel is provided between the rear end of the outer tube assembly and the inner tube (13).

4. The electrocoagulation forceps according to claim 1 or 2, characterized in that: Also included is a fixing component (2); and an actuating mechanism which is at least partially movably connected to the fixed component (2) and connected to the outer tube component, wherein the actuating mechanism is suitable for moving the outer tube component on the inner tube (13) to act on the two electrodes (17) so that the conductive heads of the two electrodes (17) move between a first position away from each other and a second position close to each other.

5. The electrocoagulation forceps according to claim 4, characterized in that: The action mechanism comprises a pushing block (6), an elastic member (9) and an operating assembly; wherein: The operating component is movably connected to the fixing component (2); The pushing block (6) is connected to the rear end of the outer tube assembly; The elastic member (9) and the operating assembly are respectively connected to the pushing block (6), so that the pushing block (6) moves under the combined action of the elastic member (9) and the operating assembly, thereby driving the outer tube assembly to move on the inner tube (13).

6. The electrocoagulation forceps according to claim 5, characterized in that: The pushing block (6) is slidably disposed on the inner tube (13); The operating assembly comprises at least one handle (3), the rear end of the handle (3) is pivotally connected to the fixing assembly (2), and the front end of the handle (3) is connected to the pushing block (6) via an action structure; wherein: When the actuating handle (3) is rotated toward the inner tube side, the handle (3) is adapted to apply at least one force to the pushing block (6) through the action structure to overcome the elastic force of the elastic member (9) to move forward, so that the conductive heads of the two electrodes (17) move from the first position to the second position; When the handle (3) is not in motion, the pushing block (6) is adapted to move backwards under the elastic force of the elastic member (9), so that the conductive heads of the two electrodes (17) move from the second position to the first position and push the handle (3) to reset through the action structure.

7. The electrocoagulation forceps according to claim 6, characterized in that: The action structure comprises: A push pin (5) provided on the corresponding handle (3); An inclined slide groove (61) is provided on the corresponding side of the push block (6) and is arranged obliquely, and a push pin (5) on the corresponding handle (3) is embedded in the inclined slide groove (61) on the corresponding side of the push block (6).

8. The electrocoagulation forceps according to claim 5, characterized in that: The elastic member (9) is a spring which is sleeved on the pushing block (6) and abuts against the fixing assembly (2).

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