Integrated coagulation high-frequency surgical coagulation knife

Abstract

The application provides a cutting and coagulating integrated high-frequency surgical electric coagulation knife, which comprises a handle, a sliding block arranged on the handle and capable of sliding along the axis of the handle, a mounting column arranged on the end of the handle and capable of sliding, a coagulation head arranged on the end of the mounting column, a cutting head arranged in the mounting column and capable of sliding, the cutting head extending out of the coagulation head, a driving mechanism arranged in the handle and connected with the sliding block, the coagulation head and the cutting head, the driving mechanism converting the sliding of the sliding block in one direction into driving the cutting head to be retracted into the coagulation head, and converting the sliding of the sliding block in the other direction into driving the cutting head to coincide with and be fixed with the coagulation head. The overall use process of the electric coagulation knife does not need to replace the instrument in the operation, the cutting and coagulation modes can be freely switched in a single operation, the operation time is greatly shortened, compared with the existing electric coagulation knife, the corresponding working parts can be more accurately controlled to contact the human tissue, the damage of the minimally invasive operation is reduced, and the safety and convenience of the fine operation are improved.

Description

Technical Field

[0001] This invention specifically relates to a high-frequency surgical electrocoagulation knife that integrates cutting and coagulation. Background Technology

[0002] The working principle of high-frequency surgical electrodes is to use high-frequency current to cut, coagulate, or evaporate tissue. High-frequency current can also generate high temperatures in a short time, causing rapid tissue evaporation, thereby achieving hemostasis, cutting, or coagulation of tissue. This method can effectively reduce bleeding and surgical trauma during surgery, while also reducing operation time and postoperative recovery time, thus improving surgical safety.

[0003] Electrodes can generally be divided into cutting electrodes and coagulation electrodes according to their function. Cutting electrodes are mainly responsible for cutting tissue, with a small contact area between the working part and the tissue, resulting in poor coagulation effect. Coagulation electrodes are mainly responsible for coagulation, with a large contact area between the working part and the tissue, resulting in poor cutting effect. Operators will change to the appropriate electrode as needed during surgery.

[0004] Surgical electrodes that can simultaneously cut and coagulate already exist. For example, Chinese utility model patent CN224023658U provides a low-temperature plasma surgical electrode tip that facilitates precise operation. This patent, by setting a coagulation working surface and micro-convex spherical points, facilitates the generation of high-frequency current in the electrode. Due to the increased surface area of ​​the smooth surface, a skin effect of high-frequency current is formed, and the charge is concentrated on the surface of the micro-convex spherical points. The apex of the micro-convex spherical points focuses energy, increasing the energy density at the contact point with local tissue, making tissue coagulation faster.

[0005] However, when using existing electrocoagulation knives with integrated electrodes, the coagulation protrusion of the integrated structure is simultaneously exposed around the lesion, which is very easy to rub against the surrounding normal tissue. At the same time, the high-frequency energy released by the coagulation protrusion can easily cause thermal burns to non-target tissues. When switching to coagulation operation, the exposed cutting edge can easily scratch the fragile wound surface and aggravate intraoperative bleeding. The two functions cannot be physically isolated, which seriously limits the use of the instrument in narrow and minimally invasive scenarios. In view of this, a high-frequency surgical electrocoagulation knife with sliding and telescopic function that integrates cutting and coagulation is proposed to solve the above problems. Summary of the Invention

[0006] Therefore, it is necessary to address the problem that most existing electrocoagulation knives with coagulation function have an integrated cutting and coagulation section. This type of electrocoagulation knife is only suitable when the operating range is wide. When the operating range is narrow, the coagulation section is prone to contact with the affected area during the cutting process, causing damage. Conversely, the cutting section is prone to contact with the affected area during the coagulation process, thus limiting its use. Therefore, it is necessary to provide a high-frequency surgical electrocoagulation knife with integrated cutting and coagulation.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-frequency surgical electrocoagulation knife integrating cutting and coagulation, comprising: handle; A slider is mounted on the handle and can slide back and forth along the handle axis; The mounting post is slidably disposed at the end of the handle, and the end of the mounting post is provided with a coagulation head; A cutting head is slidably disposed within the mounting post, and the cutting head extends outside the coagulation head; A drive mechanism is disposed within the handle and connected to the slider, the coagulation head, and the cutting head, so as to convert the sliding of the slider in one direction into driving the cutting head to retract into the coagulation head, and to convert the sliding of the slider in the other direction into driving the cutting head to overlap and fix with the coagulation head.

[0008] In one embodiment, the coagulation head is in the form of two sets of symmetrically arranged spherical or ellipsoidal protrusions.

[0009] In one embodiment, the cutting head has a circular or elliptical cross-section, and its edge consists of two sets of symmetrical bevels forming an included angle.

[0010] In one embodiment, a cable passes through one end of the handle, and a detachable mounting sleeve is provided at the other end of the handle. A connecting electrode is provided inside the mounting sleeve, and the connecting electrode is electrically connected to the mounting post and the cable. A through slot is provided on the mounting sleeve for the cutting head to pass through.

[0011] In one embodiment, the handle is provided with a suction connecting sleeve, which is fitted onto the cable and has a suction hole on one side. A suction tube passes through one end of the handle and communicates with the suction connecting sleeve.

[0012] In one embodiment, the drive mechanism includes: A first mounting bracket is slidably disposed inside the handle and detachably connected to the mounting post. A first rack is provided on the first mounting bracket. The first gear is rotatably disposed inside the handle and meshes with the first rack; The second mounting bracket is slidably disposed within the handle and detachably connected to the cutting head; A switching component, connected to the slider and the first gear, converts the sliding of the slider in two directions into driving the first gear to rotate in the same direction by different angles; and A linkage component is disposed within the handle and connected to the first mounting bracket and the second mounting bracket to convert the sliding of the first mounting bracket into driving the second mounting bracket to slide in the opposite direction.

[0013] In one embodiment, the switching component includes: A transverse frame is slidably disposed inside the handle and has an inclined groove, the two ends of which are respectively connected to a first straight groove and a second straight groove. The first drive column is disposed on the slider and is slidably disposed at one end of the first straight groove near the inclined groove; The second gear is arranged coaxially with the first gear, and a second rack that meshes with the second gear is slidably provided inside the handle; A push plate is disposed at the end of the first drive column and abuts against the end of the second rack; A second drive column is mounted on the transverse frame. The first gear has a figure-eight shaped opening, and a slot is formed inside the opening. The second drive column abuts against one side of the opening. A coil spring is mounted on the first gear and connected to the handle.

[0014] In one embodiment, the linkage component includes: The third rack is disposed at the end of the second mounting bracket; and The third gear is rotatably disposed within the handle and meshes with the first rack and the third rack.

[0015] In one embodiment, the mounting column has two sets of locking grooves at opposite ends, the first mounting bracket has a first C-shaped bracket at its end, a hook is slidably provided in the first C-shaped bracket, the end of the hook is engaged in the locking groove, a push block is connected to the side of the hook, and an elastic element is provided between the push block and the first C-shaped bracket.

[0016] In one embodiment, one end of the cutting head is provided with an I-beam frame connected by a connecting rod, the connecting rod passing through the mounting column, and the end of the second mounting frame is provided with a second C-shaped frame, the I-beam frame being engaged within the second C-shaped frame.

[0017] Compared with the prior art, the present invention has at least the following advantages: When using this electrocoagulation device, if the surgical space is open and unobstructed, the slider can be slid in one direction to align and fix the cutting head and the coagulation head, with the edge of the cutting head protruding from the coagulation head. This allows for easy contact between the coagulation head and the affected area during surgery, requiring only the movement of the handle. In narrower surgical spaces, such as those used in ENT or laparoscopic procedures, the slider can be returned to the center position, extending the cutting head for easier cutting of confined areas. When coagulation is needed, sliding the slider in the opposite direction retracts the cutting head into the coagulation head, leaving only the spherical coagulation head in contact with the lesion. During coagulation, no cutting edge is exposed, completely preventing the cutting head from scraping or scratching surrounding healthy tissue. The entire process of using this electrocoagulation device requires no instrument changes during surgery; cutting and coagulation modes can be freely switched in a single operation, significantly reducing surgical time. Compared to existing electrocoagulation devices, it allows for more precise control of the contact between the working parts and human tissue, reducing damage during minimally invasive surgery and improving the safety and convenience of delicate surgical procedures. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 A three-dimensional structural schematic diagram of a high-frequency surgical electrocoagulation knife integrating cutting and coagulation provided by the present invention; Figure 2 This is a schematic diagram of the first usage state of a high-frequency surgical electrocoagulation knife integrating cutting and coagulation according to the present invention; Figure 3 This is a schematic diagram of the second usage state of a high-frequency surgical electrocoagulation knife integrating cutting and coagulation according to the present invention; Figure 4 This is a schematic diagram showing the disassembled internal components of a high-frequency surgical electrocoagulation scalpel integrating cutting and coagulation according to the present invention. Figure 5 This is a schematic diagram showing the disassembled structure of the cutting section and the coagulation section in a high-frequency surgical electrocoagulation knife that integrates cutting and coagulation according to the present invention; Figure 6 This is a schematic diagram of the connection structure between the prying block and the first toothed rack in a high-frequency surgical electrocoagulation knife that integrates cutting and coagulation according to the present invention; Figure 7 This is a schematic diagram of the structure of the first gear in a high-frequency surgical electrocoagulation knife that integrates cutting and coagulation according to the present invention; Figure 8 This is a schematic diagram of the structure of the second and third toothed racks in a high-frequency surgical electrocoagulation scalpel that integrates cutting and coagulation according to the present invention; Figure 9 for Figure 8 An enlarged schematic diagram of region A in the middle.

[0020] Figure label: 1. Handle; 2. Mounting sleeve; 3. Connecting electrode; 4. Cable; 5. Suction connector sleeve; 6. Suction hole; 7. Suction tube; 21. Mounting column; 22. Clotting head; 23. Locking groove; 24. Cutting head; 25. Connecting rod; 26. I-beam frame; 31. First gear; 32. Second gear; 33. Opening; 34. Slot; 35. Coil spring; 36. Second rack; 41. Slider; 42. First drive column; 43. Push plate; 44. Transverse frame; 45. Inclined groove; 46. First straight groove; 47. Second straight groove; 48. Second drive column; 51. Third gear; 52. First rack; 53. Third rack; 54. First mounting bracket; 55. Second mounting bracket; 61. First C-shaped frame; 62. Hook; 63. Press block; 64. Elastic element; 65. Second C-shaped frame. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention; therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0024] Example: Please see Figures 1 to 4This invention provides a high-frequency surgical electrocoagulation scalpel integrating cutting and coagulation, comprising a handle 1, a slider 41 slidably disposed on the handle 1 along its axis, a mounting post 21 slidably disposed at the end of the handle 1, a coagulation head 22 disposed at the end of the mounting post 21, and a cutting head 24 slidably disposed inside the mounting post 21, the cutting head 24 extending beyond the coagulation head 22. The coagulation head 22 has two sets of symmetrically arranged spherical or ellipsoidal protrusions, and the cutting head 24 has a circular or elliptical cross-section with its edges being two sets of symmetrical bevels forming an included angle. A cable 4 passes through one end of the handle 1, and a detachable mounting sleeve 2 is disposed at the other end of the handle 1. A connecting electrode 3 is disposed inside the mounting sleeve 2, the connecting electrode 3 being electrically connected to the mounting post 21 and the cable 4, and a through groove is provided on the mounting sleeve 2 for the cutting head 24 to pass through. The handle 1 is provided with a suction connection sleeve 5, which is fitted onto the cable 4 and has a suction hole 6 on one side. A suction tube 7 passes through one end of the handle 1 and is connected to the suction connection sleeve 5.

[0025] Preferably, an elastic conductive sheet can be provided between the cutting head 24 and the coagulation head 22 to achieve sliding conductivity. In the initial state, the cutting head 24 is extended, and power is supplied through the cable 4 to bring the cutting head 24 and the coagulation head 22 to a high temperature for surgery. During the operation, the suction tube 7 is connected to an external suction device, allowing smoke to enter the electrocoagulation knife through the gap at the front end of the handle and be extracted from the suction hole 6 on the suction connection sleeve 5. The cutting head 24 can be controlled to slide within the coagulation head 22, so that the cutting head 24 and the coagulation head 22 are on the same axis. This allows for both cutting and coagulation functions in open surgical spaces. In narrow surgical spaces, only the cutting head 24 is extended for cutting. The relative sliding of the cutting head 24 and the coagulation head 22 can be controlled to retract the cutting head 24 and extend the coagulation head 22 to coagulate the wound. This avoids contact between the coagulation head 22 and the tissue during cutting and coagulation, effectively improving the safety of the operation.

[0026] Please see Figure 4 , 7 In this embodiment, the handle 1 is provided with a drive mechanism connected to the slider 41, the coagulation head 22, and the cutting head 24. The drive mechanism converts the sliding of the slider 41 in one direction into driving the cutting head 24 to retract into the coagulation head 22, and converts the sliding of the slider 41 in the other direction into driving the cutting head 24 to overlap and fix with the coagulation head 22. The drive mechanism includes a first mounting bracket 54 slidably disposed in the handle 1, the first mounting bracket 54 being detachably connected to the mounting post 21, a first rack 52 disposed on the first mounting bracket 54, a first gear 31 rotatably disposed in the handle 1, the first gear 31 meshing with the first rack 52, and a second mounting bracket 55 slidably disposed in the handle 1, the second mounting bracket 55 being detachably connected to the cutting head 24.

[0027] The cutting head 24 and the coagulation head 22 can slide in opposite directions by controlling the sliding of the first mounting bracket 54 and the second mounting bracket 55, so as to control the extension or retraction of the cutting head 24. The first mounting bracket 54 can be rotated by controlling the rotation of the first gear 31.

[0028] Please see Figures 5 to 9 In this embodiment, the driving mechanism further includes a switching component connected to the slider 41 and the first gear 31. The switching component converts the sliding of the slider 41 in two directions into driving the first gear 31 to rotate in the same direction at different angles. The switching component includes a transverse frame 44 that can slide laterally inside the handle 1. The transverse frame 44 has an inclined groove 45, and the two ends of the inclined groove 45 are respectively connected to a first straight groove 46 and a second straight groove 47. The slider 41 is provided with a first driving post 42, which is slidably disposed near the first straight groove 46. At one end of the slot 45, a second gear 32 is coaxially arranged on the first gear 31. A second rack 36 that meshes with the second gear 32 is slidably arranged inside the handle 1. A push plate 43 is provided at the end of the first drive column 42. The push plate 43 abuts against the end of the second rack 36. A second drive column 48 is provided on the transverse frame 44. An opening 33 in the shape of an octagon is opened on the first gear 31. A slot 34 is opened inside the opening 33. The second drive column 48 abuts against one side of the opening 33. A coil spring 35 is provided on the first gear 31. The coil spring 35 is connected to the handle 1.

[0029] The drive mechanism also includes a linkage component disposed within the handle 1 and connected to the first mounting bracket 54 and the second mounting bracket 55. The linkage component converts the sliding of the first mounting bracket 54 into driving the second mounting bracket 55 to slide in the opposite direction. The linkage component includes a third rack 53 disposed at the end of the second mounting bracket 55, and a third gear 51 rotatably disposed within the handle 1. The third gear 51 meshes with the first rack 52 and the third rack 53.

[0030] In the initial state, the coil spring 35 increases the torque on the first gear 31, causing the first rack 52 to retract. The rotation of the first gear 31 is stopped by the second drive column 48, preventing the first rack 52 from retracting excessively and disengaging. Simultaneously, the engagement of the third gear 51 and the third rack 53 extends the second mounting bracket 55, ensuring the cutting head 24 remains extended. Sufficient torque from the coil spring 35 prevents the cutting head 24 from slipping during cutting. Furthermore, the first straight groove 46 laterally limits the first drive column 42, preventing the opening 33 from pushing it to slide, thus creating a stable structure.

[0031] When coagulation is required, the slider 41 can be slid along the direction towards the cutting head 24, which drives the first drive column 42 and the push plate 43 to rotate. The first drive column 42 slides in the first straight groove 46 without controlling the movement of the transverse frame 44. The push plate 43 pushes the second rack 36 to slide, thereby controlling the rotation of the first gear 31. During the rotation, the first gear 31 can drive the mounting column 21 and the coagulation head 22 to extend through the cooperation with the first rack 52. At the same time, the third gear 51 drives the third rack 53 to slide in the opposite direction, thereby retracting the cutting head 24 to facilitate the coagulation work.

[0032] When the surgical space is open, the first drive column 42 can be slid in the inclined groove 45 by sliding the slider 41 in the opposite direction, thereby controlling the transverse frame 44 to slide laterally, which in turn drives the second drive column 48 to slide. During the sliding process, the second drive column 48 can push the first gear 31 to rotate through the inclined surface of the figure-eight opening 33 until the second drive column 48 is locked into the slot 34 to fix the position of the first gear 31. At the same time, the first drive column 42 slides into the second straight groove 47 to fix the position of the transverse frame 44, so that the first gear 31 only rotates halfway, thereby moving the cutting head 24 and the coagulation head 22 to coincide on the axis, so as to facilitate simultaneous cutting and coagulation work without repeatedly switching the use state.

[0033] Please see Figure 5 , 8 9. In this embodiment, two sets of locking grooves 23 are provided at opposite ends of the mounting column 21. A first C-shaped frame 61 is provided at the end of the first mounting bracket 54. A hook 62 is slidably provided inside the first C-shaped frame 61. The end of the hook 62 is engaged in the locking groove 23. A pressing block 63 is connected to the side of the hook 62. An elastic element 64 is provided between the pressing block 63 and the first C-shaped frame 61. One end of the cutting head 24 is provided with an I-beam 26 connected by a connecting rod 25, which passes through the mounting column 21. A second C-shaped frame 65 is provided at the end of the second mounting bracket 55. The I-beam 26 is engaged in the second C-shaped frame 65.

[0034] After removing the mounting sleeve 2, press the two sets of buttons 63 to make the two sets of hooks 62 slide out of the locking groove 23, and then slide the mounting column 21 along the opening direction of the second C-shaped frame 65 to remove the cutting head 24 and the coagulation head 22 for easy replacement and disinfection.

[0035] Specific usage and beneficial effects of the present invention: When using this electrocoagulation knife, if the surgical space is open and unobstructed, the cutting head 24 and the coagulation head 22 can be overlapped and fixed by sliding the slider 41 in one direction, with the edge of the cutting head 24 protruding outside the coagulation head 22. This allows the coagulation head 22 to come into contact with the affected area for coagulation simply by moving the handle 1 during the operation. When the surgical space is relatively narrow, such as in small minimally invasive spaces like ENT or laparoscopic procedures, the slider 41 can be reset to the middle position, allowing the cutting head 24 to extend for cutting narrow areas. When coagulation is required, sliding the slider 41 in the opposite direction can retract the cutting head 24 into the coagulation head 22, leaving only the spherical coagulation head 22 in contact with the lesion. During coagulation, there is no exposed cutting edge, completely avoiding the cutting head 24 scraping or scratching the surrounding normal tissue. The entire process of using this electrocoagulation knife does not require changing instruments during the operation. The cutting and coagulation modes can be freely switched in a single operation, which greatly reduces the operation time. Compared with existing electrocoagulation knives, it can more accurately control the contact between the corresponding working parts and human tissues, reduce damage in minimally invasive surgery, and improve the safety and convenience of delicate surgical operations.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A high-frequency surgical electrocoagulation scalpel that integrates cutting and coagulation, characterized in that, Including: Handle (1); A slider (41) is mounted on the handle (1) and can slide back and forth along the axis of the handle (1); Mounting post (21) is slidably disposed at the end of the handle (1), and a coagulation head (22) is provided at the end of the mounting post (21). The cutting head (24) is slidably disposed inside the mounting post (21) and extends out of the coagulation head (22); A drive mechanism is provided inside the handle (1) and connected to the slider (41), the coagulation head (22) and the cutting head (24) to convert the sliding of the slider (41) in one direction into driving the cutting head (24) to retract into the coagulation head (22), and to convert the sliding of the slider (41) in the other direction into driving the cutting head (24) to overlap and fix with the coagulation head (22).

2. The high-frequency surgical electrocoagulation knife integrating cutting and coagulation according to claim 1, characterized in that: The coagulation head (22) consists of two sets of symmetrically arranged spherical or ellipsoidal protrusions.

3. The high-frequency surgical electrocoagulation knife integrating cutting and coagulation according to claim 1, characterized in that: The cutting head (24) has a circular or elliptical cross section, and its edge consists of two sets of symmetrical inclined planes forming an angle.

4. The high-frequency surgical electrocoagulation knife integrating cutting and coagulation according to claim 1, characterized in that: One end of the handle (1) is through a cable (4), and the other end of the handle (1) is provided with a detachable mounting sleeve (2). A connecting electrode (3) is provided inside the mounting sleeve (2). The connecting electrode (3) is electrically connected to the mounting post (21) and the cable (4), and a through groove is provided on the mounting sleeve (2) for the cutting head (24) to pass through.

5. The high-frequency surgical electrocoagulation knife integrating cutting and coagulation according to claim 4, characterized in that: The handle (1) is provided with a suction connecting sleeve (5), which is sleeved on the cable (4) and has a suction hole (6) on one side. A suction tube (7) passes through one end of the handle (1) and is connected to the suction connecting sleeve (5).

6. The high-frequency surgical electrocoagulation scalpel integrating cutting and coagulation according to claim 1, characterized in that, The driving mechanism includes: The first mounting bracket (54) is slidably disposed in the handle (1) and detachably connected to the mounting post (21). The first mounting bracket (54) is provided with a first rack (52). The first gear (31) is rotatably disposed in the handle (1) and meshes with the first rack (52); The second mounting bracket (55) is slidably disposed within the handle (1) and detachably connected to the cutting head (24); The switching component is connected to the slider (41) and the first gear (31) to convert the sliding of the slider (41) in two directions into driving the first gear (31) to rotate in the same direction by different angles. and A linkage component is disposed within the handle (1) and connected to the first mounting bracket (54) and the second mounting bracket (55) to convert the sliding of the first mounting bracket (54) into driving the second mounting bracket (55) to slide in the opposite direction.

7. The high-frequency surgical electrocoagulation scalpel integrating cutting and coagulation according to claim 6, characterized in that, The switching component includes: A transverse frame (44) is slidably disposed in the handle (1) and has an inclined groove (45) provided. The two ends of the inclined groove (45) are respectively connected to a first straight groove (46) and a second straight groove (47). The first drive column (42) is disposed on the slider (41) and is slidably disposed at one end of the first straight groove (46) near the inclined groove (45); The second gear (32) is arranged coaxially with the first gear (31), and the handle (1) is also slidably provided with a second rack (36) that meshes with the second gear (32). A push plate (43) is disposed at the end of the first drive column (42) and abuts against the end of the second rack (36); The second drive column (48) is mounted on the transverse frame (44). The first gear (31) has a V-shaped opening (33), and a slot (34) is provided inside the opening (33). The second drive column (48) abuts against one side of the opening (33). A coil spring (35) is mounted on the first gear (31) and connected to the handle (1).

8. The high-frequency surgical electrocoagulation scalpel integrating cutting and coagulation according to claim 6, characterized in that, The linkage components include: The third rack (53) is disposed at the end of the second mounting bracket (55); and The third gear (51) is rotatably disposed within the handle (1) and meshes with the first rack (52) and the third rack (53).

9. The high-frequency surgical electrocoagulation knife integrating cutting and coagulation according to claim 6, characterized in that: The mounting post (21) has two sets of locking grooves (23) at opposite ends. The first mounting bracket (54) has a first C-shaped bracket (61) at its end. A hook (62) is slidably provided inside the first C-shaped bracket (61). The end of the hook (62) is locked in the locking groove (23). A push block (63) is connected to the side of the hook (62). An elastic element (64) is provided between the push block (63) and the first C-shaped bracket (61).

10. The high-frequency surgical electrocoagulation knife integrating cutting and coagulation according to claim 6, characterized in that: One end of the cutting head (24) is provided with an I-beam frame (26) connected by a connecting rod (25), the connecting rod (25) passes through the mounting column (21), and the end of the second mounting frame (55) is provided with a second C-shaped frame (65), the I-beam frame (26) is locked in the second C-shaped frame (65).

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