Bipolar electrocoagulation forceps

Abstract

The bipolar electrocoagulation forceps comprise a main forceps head, a sliding rod, a sleeve, a handle and an illuminating lamp, the tail end of the sleeve is arranged in the handle, the sliding rod is arranged in the sleeve in a sliding mode, the main forceps head comprises two sub forceps heads, the main forceps head is arranged at the front end of the sleeve, and the illuminating lamp is arranged in the sleeve. The sliding rod controls opening and closing of the two sub-forceps heads by sliding back and forth, the illuminating lamp is arranged at the front end of the sleeve, and a liquid suction channel is formed between the sleeve and the sliding rod. And through collaborative optimization of the main forceps head, the integrated illumination and the liquid suction channel, the clinical applicability and the operation efficiency of the bipolar electrocoagulation forceps are remarkably improved.

Description

Technical Field

[0001] The present invention relates to a medical device, and particularly to a bipolar electrocoagulation forceps. Background Art

[0002] Since bipolar electrocoagulation technology was applied clinically in the mid-20th century, it has become an indispensable hemostatic tool in modern surgical operations. Its working principle is to denature tissue proteins through the current between two electrodes to achieve the hemostatic effect. Compared with monopolar electrocoagulation, the bipolar system has advantages such as a controllable current path and a small range of tissue damage, and is particularly suitable for delicate surgical fields such as neurosurgery and microsurgery. However, with the development of minimally invasive surgery and precision medicine, traditional bipolar electrocoagulation forceps have gradually shown obvious deficiencies in aspects such as lighting, coagulation efficiency, and fluid management.

[0003] Insufficient intraoperative lighting: In deep or narrow surgical fields, external light sources are easily blocked, resulting in a dim surgical field and affecting the accuracy of operation. Low coagulation efficiency: The traditional forceps head design is simple, and the width of the forceps head is large, resulting in non-concentrated energy and low electrocoagulation efficiency. Liquid interference: The accumulation of blood, tissue fluid, or irrigation fluid during the operation affects the operation field of view and electrocoagulation effect. Traditional solutions rely on external liquid suction devices, but the additional instruments occupy the surgical space. Therefore, it is necessary to propose a bipolar electrocoagulation forceps to improve the surgical efficiency, shorten the operation time, and reduce the risk of complications caused by unclear vision or low electrocoagulation efficiency. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the background art and provide a bipolar electrocoagulation forceps.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: A bipolar electrocoagulation forceps includes a main forceps head, a sliding rod, a sleeve, a handle, and a lighting lamp. The end of the sleeve is arranged in the handle, the sliding rod is slidably arranged in the sleeve, the main forceps head includes two sub-forceps heads, the main forceps head is arranged at the front end of the sleeve, the sliding rod controls the opening and closing of the two sub-forceps heads by sliding back and forth, the lighting lamp is arranged at the front end of the sleeve, and a liquid suction channel is formed between the sleeve and the sliding rod.

[0006] In the present invention, the sliding rod slides back and forth in the sleeve to control the opening and closing of the sub-forceps heads, improving the electrocoagulation efficiency. The surgical area is illuminated by the lighting lamp to avoid the problem of external light source occlusion, ensuring clear visibility of deep or narrow surgical fields and improving the surgical accuracy. Through the liquid suction channel, blood, tissue fluid, or irrigation fluid can be sucked in real time during electrocoagulation to avoid liquid accumulation affecting the field of view, reducing surgical interruption, and improving the surgical smoothness and efficiency. Thus, through the coordinated optimization of the main forceps head, integrated lighting, and liquid suction channel, the clinical applicability and surgical efficiency of the bipolar electrocoagulation forceps are significantly improved.

[0007] The bipolar electrocoagulation forceps can be used for laparoscopic cholecystectomy and appendectomy in general surgery; thoracoscopic lobectomy and mediastinal tumor resection in thoracic surgery; laparoscopic myomectomy and total hysterectomy in obstetrics and gynecology; laparoscopic renal cyst unroofing and transurethral resection of the prostate in urology; minimally invasive intracranial tumor and spinal minimally invasive surgery in neurosurgery.

[0008] Preferably, the width of the sub-forceps head gradually decreases along the direction from the bottom to the head. The smaller the width of the forceps head of the present invention, the higher the current density, the more concentrated the generated energy, and the faster the temperature rise, thus achieving efficient electrocoagulation.

[0009] On one side of the two sub-forceps heads facing each other, racks are provided along the length direction, and the two racks are staggeredly engaged. When the racks are staggeredly engaged, the contact points between the sub-forceps heads and the tissue increase, enabling the current to be more evenly distributed on the tissue, allowing more tissue to be heated and coagulated simultaneously, thereby improving the electrocoagulation efficiency; enhancing the clamping stability: the staggered racks can better fix the tissue, prevent the tissue from sliding during electrocoagulation, ensure the accuracy of the electrocoagulation site, reduce repeated operations, and indirectly improve the efficiency.

[0010] Preferably, a fixing tube is further provided on the outer side of the sleeve, the illuminating lamp is fixed on the front wall of the fixing tube, and a smoke suction channel is formed between the fixing tube and the sleeve. Through the smoke suction channel, the smoke can be sucked in real time, avoiding the accumulation of smoke from affecting the vision, reducing surgical interruption, improving the smoothness and efficiency of the surgery, and at the same time reducing the interference of the smoke on the illuminating lamp.

[0011] Preferably, a three-way valve is provided inside the handle. The three-way valve is divided into an inlet, a liquid outlet, and a smoke outlet. Both the liquid suction channel and the smoke suction channel are connected to the inlet of the three-way valve, and the control handle of the three-way valve is located outside the handle. In the present invention, by controlling the handle to control whether the inlet is connected to the liquid outlet or the smoke outlet, the smoking and liquid suction can be separately processed. The independent smoke suction channel can give priority to dealing with the smoke, avoiding the condensation of the mixture of smoke and liquid into a foggy residue, which affects the clarity of the vision under the mirror. The accumulated blood / effusion can be removed as needed through the liquid suction channel, thereby always maintaining a clear surgical field.

[0012] Preferably, two symmetric extension plates are provided at the front end of the sleeve. The two sub-forceps heads are hinged by a fixing pin. The front end of one of the sub-forceps heads is hinged to the front end of the sliding rod by a fixing pin, and the other sub-forceps head is hinged to the extension plate by a fixing pin, so that by moving the sliding rod back and forth, the opening and closing of the main forceps head can be controlled.

[0013] Preferably, a front-back movement control mechanism is provided inside the handle. The front-back movement control mechanism includes a handheld part and a fixed block. A fixing hole is provided at the top of the handheld part. The fixed block is rotatably arranged in the fixing hole. A limiting groove facilitating the passing through and front-back movement of the sliding rod is formed in the side wall of the handheld part close to the sliding rod. The end of the sliding rod is arranged inside the fixed block. A support shaft facilitating the rotation of the handheld part is provided on the part of the handheld part located inside the handle. The handheld part and the handle are in a scissor shape. The sleeve is limited on the handle and cannot move back and forth, but can only rotate.

[0014] When the handheld part rotates along the support shaft in the present invention, since the sleeve cannot move back and forth, the sliding rod moves back and forth accordingly.

[0015] Preferably, a rotating ring is fixed at the end of the fixed tube. The fixed tube and the rotating ring are mutually communicated. The rotating ring and the sleeve are fixedly connected through a fixing strip. A smoking hole is formed between the two fixing strips. The end of the rotating ring and the sleeve are hermetically connected to prevent smoke leakage. The end of the sleeve and the sliding rod are sealed by a piston. While ensuring the movement of the sliding rod, liquid leakage is prevented. Piston sealing is a prior art and will not be elaborated in this case.

[0016] By rotating the rotating ring in the present invention, the main clamp head can be driven to rotate, which can accurately adapt to complex surgical fields, stop bleeding at multiple angles, reduce instrument replacement and tissue traction, improve the electrocoagulation effect, reduce the risk of thermal injury, optimize the operation efficiency, enhance the surgical safety, and is particularly suitable for minimally invasive and narrow space operations.

[0017] Preferably, a limiting ring is formed at the end of the sliding rod. A clamping groove preventing the limiting ring from moving back and forth is formed on the fixed block. The limiting ring can ensure the rotation of the sliding rod and prevent the sliding rod from falling off the fixed block.

[0018] Preferably, a rotation angle control mechanism is further provided at the bottom of the support shaft. The rotation angle control mechanism includes a housing, a ratchet, a clamping pawl, an opening pawl, a clamping compression spring, an opening compression spring, and a rotating extrusion block. The housing is fixed on the handle. The ratchet is rotatably fixed at the inner bottom of the housing through a bearing. The support shaft is fixed at the top of the ratchet. The clamping pawl and the opening pawl are both located at the lower part of the ratchet and cooperate with the ratchet. The clamping compression spring is arranged between the clamping pawl and the side wall of the housing. The opening compression spring is arranged between the opening pawl and the side wall of the housing. The rotating extrusion block is arranged between the clamping pawl and the opening pawl. A rotating rod is provided at the bottom of the rotating extrusion block. The rotating rod is located on the outer wall of the handle. One end of the clamping pawl and the opening pawl is hinged to the housing, and the other end is a free end.

[0019] In the present invention, by rotating the rotating rod, the rotating extrusion block extrudes the clamping pawl, so that the clamping pawl cannot contact the ratchet wheel. Then, the handheld part is opened, enabling the ratchet wheel to rotate counterclockwise. When the required opening and closing angle is adjusted, the ratchet wheel is clamped by the clamping pawl and can maintain this angle unchanged, maintaining the opening degree. When clamping is required, only by rotating the rotating rod, the rotating extrusion block extrudes the opening pawl, so that the opening pawl cannot contact the ratchet wheel. Then, the handheld part is closed, enabling the ratchet wheel to rotate clockwise. When the required closing angle is adjusted, the closing angle is maintained, which can reduce the fatigue impact on the operator, ensure accurate clamping of blood vessels, optimize the energy conduction efficiency, and at the same time reduce the risk of thermal damage to surrounding tissues. It is especially suitable for long-term delicate surgeries, significantly improving the safety and reliability of surgeries and further enhancing the surgical efficiency.

[0020] In summary, the beneficial effects of the present invention are as follows: 1. In the present invention, by sliding the sliding rod back and forth in the sleeve, the opening and closing of the main clamp head are controlled, improving the electrocoagulation efficiency. By illuminating the surgical area with the lighting lamp, the problem of external light source occlusion is avoided, ensuring clear visibility of deep or narrow surgical fields and improving surgical accuracy. Through the liquid suction channel, blood, tissue fluid, or irrigation fluid can be sucked in real time during electrocoagulation, avoiding the influence of liquid accumulation on the field of view, reducing surgical interruptions, and improving surgical fluency and efficiency. Thus, through the collaborative optimization of the main clamp head, integrated lighting, and liquid suction channel, the clinical applicability and surgical efficiency of the bipolar electrocoagulation forceps are significantly improved; 2. The smaller the width of the insert head of the present invention, the higher the current density, the more concentrated the generated energy, and the faster the temperature rise, thereby achieving efficient electrocoagulation; 3. In the present invention, by controlling the handle, the connection between the inlet and the liquid outlet or the connection between the inlet and the smoke outlet is controlled, enabling separate treatment of smoking and liquid suction. The independent smoking channel can give priority to treating smoke (especially during continuous electrocoagulation), avoiding the condensation of a misty residue after the smoke and liquid are mixed, which affects the clarity of the microscopic field of view. The accumulated blood / effusion can be removed as needed through the liquid suction channel, thus always maintaining a clear surgical field; 4. In the present invention, by rotating the rotating rod, the rotating extrusion block extrudes the clamping pawl, so that the clamping pawl cannot contact the ratchet wheel. Then, the handheld part is opened, enabling the ratchet wheel to rotate counterclockwise. When the required opening and closing angle is adjusted, the ratchet wheel is clamped by the clamping pawl and can maintain this angle unchanged, maintaining the opening degree. When clamping is required, only by rotating the rotating rod, the rotating extrusion block extrudes the opening pawl, so that the opening pawl cannot contact the ratchet wheel. Then, the handheld part is closed, enabling the ratchet wheel to rotate clockwise. When the required closing angle is adjusted, the closing angle is maintained, which can reduce the fatigue impact on the operator, ensure accurate clamping of blood vessels, optimize the energy conduction efficiency, and at the same time reduce the risk of thermal damage to surrounding tissues. It is especially suitable for long-term delicate surgeries, significantly improving the safety and reliability of surgeries and further enhancing the surgical efficiency. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the whole of the present invention; Figure 2 is of the present invention Figure 1 an enlarged schematic diagram of part A; Figure 3 is a schematic diagram of the connection between the main jaw head and the sliding rod of the present invention; Figure 4 is an internal schematic diagram of the handle of the present invention; Figure 5 is a top view schematic diagram of the fixing block of the present invention; Figure 6 is a schematic diagram of the handheld part of the present invention; Figure 7 is a sectional schematic diagram of the whole of the present invention; Figure 8 is of the present invention Figure 7 an enlarged schematic diagram of part B; Figure 9 is of the present invention Figure 7 an enlarged schematic diagram of part C; Figure 10 is a sectional schematic diagram of the connection between the sliding rod, the sleeve, the fixing strip and the rotating ring of the present invention; Figure 11 is a schematic diagram of the whole of the rotation angle control mechanism of the present invention; Figure 12 is a front view schematic diagram of the rotation angle control mechanism of the present invention; Figure 13 is a schematic diagram of the position of the rotating rod on the back of the housing of the present invention; Figure 14 is a schematic diagram of the racks being staggered from each other.

[0022] 1. Main jaw head; 11. Sub-jaw head; 2. Sliding rod; 3. Sleeve; 4. Handle; 5. Lighting lamp; 6. Liquid suction channel; 30. Fixed pipe; 60. Smoking channel; 41. Three-way valve; 411. Inlet; 412. Liquid outlet, 413. Smoke outlet; 31. Extension plate; 40. Forward and backward movement control mechanism; 401. Handheld part; 402. Fixing block; 404. Limit groove; 405. Support shaft; 32. Rotating ring; 312. Smoking hole; 21. Limit ring; 406. Card slot; 7. Rotation angle control mechanism; 71. Housing; 72. Ratchet; 73. Clamping pawl; 74. Opening pawl; 75. Clamping compression spring; 77. Opening compression spring; 76. Rotating extrusion block; 78. Rotating rod. Detailed implementation manners

[0023] The following specific embodiments are only explanations of the present invention and do not limit the present invention. After reading this specification, those skilled in the art can make modifications to these embodiments without creative contributions as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0025] Embodiment

[0026] As Figure 1-2 shown, a bipolar electrocoagulation forceps includes a main forceps head 1, a sliding rod 2, a sleeve 3, a handle 4, and a lighting lamp 5. The end of the sleeve 3 is arranged inside the handle 4, the sliding rod 2 is slidably arranged inside the sleeve 3, the main forceps head 1 includes two sub-forceps heads 11, the main forceps head 1 is arranged at the front end of the sleeve 3, the sliding rod 2 controls the opening and closing of the two sub-forceps heads 11 by sliding back and forth, the lighting lamp 5 is arranged at the front end of the sleeve 3, a liquid suction channel 6 is formed between the sleeve 3 and the sliding rod 2, the width of the sub-forceps head 11 gradually decreases along the direction from the bottom to the head, and racks 110 are arranged on one side of the two sub-forceps heads 11 facing each other along the length direction, and the two racks are staggeredly engaged, which can prevent slipping during the clamping process.

[0027] As Figure 9 shown, a fixed tube 30 is further arranged on the outer side of the sleeve 3, the lighting lamp 5 is fixed on the front wall of the fixed tube 30, and a smoking channel 60 is formed between the fixed tube 30 and the sleeve 3.

[0028] As Figure 4 shown, a three-way valve 41 is arranged inside the handle 4. The three-way valve 41 is divided into an inlet 411, a liquid outlet 412, and a smoke outlet 413. The liquid suction channel 6 and the smoking channel 60 are both connected to the inlet of the three-way valve 41, and the control handle of the three-way valve 41 is located outside the handle 4.

[0029] As Figure 3 shown, two symmetrical extension plates 31 are arranged at the front end of the sleeve 3. The two sub-forceps heads 11 are hinged by a fixed pin. The front end of one of the sub-forceps heads 11 is hinged to the front end of the sliding rod 2 by a fixed pin, and the other sub-forceps head 11 is hinged to the extension plate 31 by a fixed pin.

[0030] As Figure 4-6As shown, a front-back movement control mechanism 40 is provided inside the handle 4. The front-back movement control mechanism 40 includes a handheld part 401 and a fixed block 402. A fixing hole 403 is provided at the top of the handheld part 401. The fixed block 402 is rotatably arranged in the fixing hole 403. A limiting groove 404 for the sliding rod 2 to pass through and move back and forth is formed in the side wall of the handheld part 401 close to the sliding rod 2. The end of the sliding rod 2 is arranged inside the fixed block 402. A support shaft 405 for facilitating the rotation of the handheld part 401 is provided on the part of the handheld part 401 located inside the handle. A limiting ring 21 is formed at the end of the sliding rod 2. A clamping groove 406 for preventing the limiting ring 21 from moving back and forth is formed on the fixed block 402.

[0031] As Figure 9 As shown, a rotating ring 32 is fixed at the end of the fixed tube 30. The fixed tube 30 and the rotating ring 32 are in mutual communication. The rotating ring 32 and the sleeve 3 are fixedly connected through a fixing strip 311. A smoking hole 312 is formed between the two fixing strips 311. The end of the rotating ring 32 is hermetically connected to the sleeve 3.

[0032] As Figure 11-13 As shown, a rotation angle control mechanism 7 is further provided at the bottom of the support shaft 405. The rotation angle control mechanism 7 includes a housing 71, a ratchet wheel 72, a clamping pawl 73, an opening pawl 74, a clamping compression spring 75, an opening compression spring 77, and a rotating extrusion block 76. The housing 71 is fixed on the handle 4. The ratchet wheel 72 is rotatably fixed at the inner bottom of the housing 71 through a bearing. The support shaft 405 is fixed at the top of the ratchet wheel 72. The clamping pawl 73 and the opening pawl 74 are both located below the ratchet wheel 72 and cooperate with the ratchet wheel 72. The clamping compression spring 75 is arranged between the clamping pawl 73 and the side wall of the housing 71. The opening compression spring 77 is arranged between the opening pawl 74 and the side wall of the housing 71. The rotating extrusion block 76 is arranged between the clamping pawl 73 and the opening pawl 74. A rotating rod 78 is provided at the bottom of the rotating extrusion block 76. The rotating rod 78 is located on the outer wall of the handle 4. One ends of the clamping pawl 73 and the opening pawl 74 are hinged to the housing 71, and the other ends are free ends.

[0033] Working principle: As Figure 1-14As shown in the figure, during use, by rotating the rotating rod 78, the rotating extrusion block 76 squeezes the clamping pawl 73, so that the clamping pawl 73 cannot contact the ratchet wheel 72. Then, the handheld part 401 is opened, and the sliding rod 2 moves forward. While the handheld part 401 is opened, the ratchet wheel 72 can rotate counterclockwise because it meshes with the teeth of the opening pawl 74. When the main pliers head 1 is adjusted to the required opening and closing angle, since the opening pawl 74 has no space to rotate, the ratchet wheel 72 cannot rotate clockwise. And in the counterclockwise direction, it is meshed with the opening pawl 74 and will not change the angle randomly, so that the main pliers head 1 can maintain this angle unchanged and keep the opening degree, preventing sudden closing caused by accidental operations such as slippery hands during the operation, which may pose a surgical risk, or sudden excessive opening, which may affect the surrounding tissues. When clamping is required, only need to rotate the rotating rod 78 to make the rotating extrusion block 76 squeeze the opening pawl 74, so that the opening pawl 74 cannot contact the ratchet wheel 72. Then, the handheld part 401 is closed, and the sliding rod 2 moves backward. At the same time, the ratchet wheel 72 can rotate clockwise because it meshes with the teeth of the clamping pawl 73. When the main pliers head 1 is closed to the required opening and closing angle, since the clamping pawl 73 has no space to rotate, the ratchet wheel 72 cannot rotate counterclockwise. And in the clockwise direction, it is meshed with the clamping pawl 73 and will not change the angle randomly, so that the main pliers head 1 can maintain this angle unchanged and keep the closing angle, preventing overheating damage caused by excessive closing or inability to achieve good electrocoagulation effect due to excessive opening caused by accidental operations such as slippery hands. It can reduce the fatigue impact on the operator. When lighting is required during the operation, only need to turn on the lighting lamp to irradiate the operation area, avoid the problem of external light source occlusion, ensure clear visibility of the deep or narrow operation field, and improve the surgical accuracy. When smoking is required, the three-way valve 41 is rotated to the smoke outlet 413, so that the smoke is discharged from the smoke outlet 413 through the smoke suction channel 60. When liquid suction is required, the three-way valve 41 is rotated to the liquid outlet 412, so that the liquid is discharged from the liquid outlet 412 through the liquid suction channel 6, enabling separate treatment of smoking and liquid suction, and always maintaining a clear operation field, thus cooperating with the inlay head to ensure the high efficiency of the operation.

Claims

1. A bipolar electrocoagulation forceps, characterized in that: The invention comprises a main pliers head (1), a sliding rod (2), a sleeve (3), a handle (4), and an illuminating lamp (5). The end of the sleeve (3) is arranged in the handle (4). The sliding rod (2) is slidably arranged in the sleeve (3). The main pliers head (1) comprises two sub-pliers heads (11). The main pliers head (1) is arranged at the front end of the sleeve (3). The sliding rod (2) controls the opening and closing of the two sub-pliers heads (11) by sliding forward and backward. The illuminating lamp (5) is arranged at the front end of the sleeve (3). A liquid suction channel (6) is formed between the sleeve (3) and the sliding rod (2).

2. A bipolar electrocoagulation forceps according to claim 1, characterized in that: The sub-pliers head (11) has a width that gradually decreases in a direction from the bottom to the head.

3. A bipolar electrocoagulation forceps according to claim 1, characterized in that: A fixing tube (30) is also provided on the outside of the sleeve (3), the lighting lamp (5) is fixed on the front wall of the fixing tube (30), and a smoking passage (60) is formed between the fixing tube (30) and the sleeve (3).

4. A bipolar electrocoagulation forceps according to claim 3, characterized in that: A three-way valve (41) is provided in the handle (4), the three-way valve (41) being divided into an inlet (411), a liquid outlet (412) and a smoke outlet (413), the liquid suction channel (6) and the smoke suction channel (60) being connected to the inlet of the three-way valve (41), and the control handle of the three-way valve (41) being located outside the handle (4).

5. A bipolar electrocoagulation forceps according to claim 3, characterized in that: The front end of the sleeve (3) is provided with two symmetrical extension plates (31), and the two sub-pliers (11) are hinged via a fixing pin, wherein the front end of one of the sub-pliers (11) is hinged to the front end of the sliding rod (2) via the fixing pin, and the other sub-pliers (11) is hinged to the extension plate (31) via the fixing pin.

6. A bipolar electrocoagulation forceps according to claim 5, characterized in that: A forward and backward movement control mechanism (40) is provided in the handle (4), and the forward and backward movement control mechanism (40) comprises a hand-held portion (401) and a fixing block (402). A fixing hole (403) is provided at the top of the hand-held portion (401), and the fixing block (402) is rotatably arranged in the fixing hole (403). A side wall of the hand-held portion (401) close to the sliding rod (2) is provided with a limiting groove (404) for facilitating the sliding rod (2) to pass through and move forward and backward. The end of the sliding rod (2) is arranged in the fixing block (402), and a part of the hand-held portion (401) located in the handle is provided with a support shaft (405) for facilitating the rotation of the hand-held portion (401).

7. A bipolar electrocoagulation forceps according to claim 6, characterized in that: A rotating ring (32) is fixed to the end of the fixed tube (30); the fixed tube (30) and the rotating ring (32) are in electrical communication with each other; the rotating ring (32) and the sleeve (3) are fixedly connected via a fixing strip (311); a smoking hole (312) is formed between the two fixing strips (311).

8. A bipolar electrocoagulation forceps according to claim 7, characterized in that: A limit ring (21) is formed at the end of the sliding rod (2), and a slot (406) for preventing the limit ring (21) from moving forwards and backwards is formed on the fixing block (402).

9. A bipolar electrocoagulation forceps according to claim 6, characterized in that: A rotation angle control mechanism (7) is also provided at the bottom of the support shaft (405), and the rotation angle control mechanism (7) comprises a housing (71), a ratchet (72), a clamping pawl (73), an opening pawl (74), a clamping compression spring (75), an opening compression spring (77), and a rotating extrusion block (76). The housing (71) is fixed to the handle (4), the ratchet (72) is rotatably fixed to the inner bottom of the housing (71) via a bearing, the support shaft (405) is fixed to the top of the ratchet (72), and the clamping pawl (73) is provided to the opening pawl (74). The ratchet (73) and the opening pawl (74) are both located at the bottom of the ratchet (72) and cooperate with the ratchet (72), the clamping compression spring (75) is arranged between the clamping pawl (73) and the side wall of the housing (71), the opening compression spring (77) is arranged between the opening pawl (74) and the side wall of the housing (71), the rotating extrusion block (76) is arranged between the clamping pawl (73) and the opening pawl (74), and the bottom of the rotating extrusion block (76) is provided with a rotating rod (78), and the rotating rod (78) is located on the outer wall of the handle (4).

10. A bipolar electrocoagulation forceps according to claim 9, characterized in that: One end of the clamping pawl (73) and the opening pawl (74) is hinged to the housing (71), and the other end is a free end.

Images