A high-frequency single-pole low-temperature precision cutting surgical blade

Abstract

The present invention discloses a high-frequency single-pole low-temperature precision cutting surgical blade, comprising: a cutting pole, an insulating sleeve, a water-injected steel pipe, a saline injection cavity, and a water injection channel. The outer side of the cutting pole is provided with an insulating sleeve, and the outer side of the insulating sleeve is provided with a water-injected steel pipe. There is a gap between the insulating sleeve and the water-injected steel pipe. The tail end of the cutting pole is connected to one end of the high-frequency voltage output, and the tail end of the water-injected steel pipe is connected to the other end of the high-frequency voltage output. A saline injection cavity is formed between the water-injected steel pipe and the insulating sleeve. The tail end of the water-injected steel pipe is also connected to one end of the water injection channel, and the other end of the water injection channel is connected to an infusion device. The purpose of the present invention is to provide a high-frequency single-pole low-temperature precision cutting surgical blade that can present diversity and is convenient for aspirating the mist generated during surgery.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a high-frequency single-pole low-temperature precision cutting surgical blade. Background Art

[0002] High-frequency electrosurgical unit is an electrosurgical device for tissue cutting. It heats the tissue when it contacts the body through the high-frequency high-voltage current generated by the effective electrode tip, so as to separate and coagulate the body tissue, thereby achieving the purpose of cutting and hemostasis. According to the functions and uses of high-frequency surgical instruments, they can be roughly divided into the following types: Multifunctional high-frequency electrosurgical unit: with pure cutting, mixed cutting, monopolar coagulation, electrocautery, and bipolar coagulation; Monopolar high-frequency electrosurgical unit: with pure cutting, mixed cutting, monopolar coagulation, and electrocautery; Bipolar electrocoagulator: bipolar electrocoagulation; Electrocautery: monopolar electrocautery; with pure cutting, mixed cutting, and monopolar coagulation; High-frequency argon gas knife: with argon protection cutting and argon arc jet coagulation; Multifunctional high-frequency beauty instrument: with spot coagulation, spot cautery, and ultra-high frequency electrocautery.

[0003] The operation temperature is high, and blood clots form in the solid tumor blood vessels after ablation, the collagen walls of the blood vessels are adhered, and the tissues after ablation are dehydrated and coagulated due to the high temperature to form scars, resulting in serious postoperative edema and complications. Summary of the invention

[0004] Therefore, the present invention aims to solve the problems in the prior art of scar formation caused by high-temperature dehydration and coagulation of tissue after ablation, postoperative edema and serious complications.

[0005] To this end, the technical solution adopted is that the present invention has a hollow water-injected steel pipe on the monopolar cutting electrode, and an insulating protective sleeve on the electrode. The electrode and the water-injected steel pipe are insulated and isolated, and at the same time, the two ends of the electric field output of the high-frequency electric knife are welded respectively. When the physiological saline flowing out of the steel pipe is activated by high frequency and high voltage to produce conductive sodium chloride ions, the charged sodium ions will flow the current on the steel pipe to the monopolar cutting electrode and the surrounding cutting tissue, forming a high-frequency electric field output loop. The cutting electrode with a larger current completes the cutting of soft tissues, nerves, and vascular tissues in water. At the same time, due to the effect of flowing water, the temperature of the cutting wound is taken away, which plays a role in hypothermia and cooling. A suction steel pipe is then put on the outside of the water-injected steel pipe. The water mist and gas generated during cutting can be sucked away through the suction hole above the suction steel pipe connected to the suction device, and the gas mist will not be emitted in the air.

[0006] A high-frequency single-pole low-temperature fine cutting surgical blade comprises: a cutting electrode, an insulating sleeve, a water-injected steel pipe, a saline injection cavity, and a water injection channel. The outer side of the cutting electrode is provided with an insulating sleeve, and the outer side of the insulating sleeve is provided with a water-injected steel pipe. There is a gap between the insulating sleeve and the water-injected steel pipe. The tail end of the cutting electrode is connected to one end of a high-frequency voltage output, and the tail end of the water-injected steel pipe is connected to the other end of the high-frequency voltage output. A saline injection cavity is formed between the water-injected steel pipe and the insulating sleeve. The tail end of the water-injected steel pipe is also connected to one end of the water injection channel, and the other end of the water injection channel is connected to an infusion device.

[0007] Preferably, the electrode head of the cutting electrode is needle-shaped, blade-shaped or hook-shaped.

[0008] Preferably, a suction steel pipe is sleeved on the outer side of the water injection steel pipe, a gap is provided between the suction steel pipe and the water injection steel pipe, the tail end of the suction steel pipe is connected with one end of the suction pipe, and the other end of the suction pipe is connected with the suction device.

[0009] Preferably, a handle is provided on the outer side of the suction steel pipe.

[0010] Preferably, a multifunctional button switch is provided on the handle.

[0011] Preferably, it also includes a fluid control device, the fluid control device includes: a Y-shaped tube, a shell,

[0012] The first connection end of the Y-shaped tube is connected to the water injection channel away from one end of the water injection steel pipe, and the first infusion tube and the second infusion tube are respectively arranged in the shell. One end of the first infusion tube extends out of the shell and is connected to the second connection end of the Y-shaped tube, and the other end of the first infusion tube extends out of the shell and is connected to the liquid distribution box. One end of the second infusion tube extends out of the shell and is connected to the third connection end of the Y-shaped tube, and the other end of the second infusion tube extends out of the shell and is connected to the cleaning liquid tank.

[0013] A first normally closed solenoid valve is provided on the first infusion tube, the first normally closed solenoid valve is located in the shell, and a first switch button is provided on the top of the first normally closed solenoid valve; a second normally closed solenoid valve is provided on the second infusion tube, the second normally closed solenoid valve is located in the shell, and a second switch button is provided on the top of the second normally closed solenoid valve; a first pressure pump is provided on one end of the first infusion tube close to the liquid distribution tank, and a second pressure pump is provided on one end of the second infusion tube close to the cleaning liquid tank.

[0014] Preferably, a seesaw is provided in the housing, one end of the seesaw is located above the first switch button, and the other end of the seesaw is located above the second switch button, a first through hole and a second through hole are respectively provided at the left and right ends of the top wall of the housing, a first protrusion is provided on one side of the top of the seesaw, and the first protrusion passes through the first through hole, and a second protrusion is provided on the other side of the top of the seesaw, and the second protrusion passes through the second through hole;

[0015] A rotating plate is provided below the seesaw, one end of a first connecting rod is vertically connected to the middle of the seesaw, the other end of the first connecting rod is vertically connected to the rotating plate, one end of a rotating shaft is vertically connected to the rotating plate near the first connecting rod, and the other end of the rotating shaft is rotatably connected to the inner wall of the shell;

[0016] The cam is provided with a sliding column at the left end of the rotating plate, and a fixing block is provided on the rotating plate, and the fixing block is located between the sliding column and the rotating shaft, and a fixing column is provided on the inner wall of the shell, and the fixing column is located below the left end of the rotating plate, and the fixing column is located below the left end of the rotating plate, and the first limiting column and the second limiting column are both fixed to the inner wall of the shell.

[0017] Preferably, a heating pipe is provided in the liquid distribution box, a liquid inlet pipe is provided on the outer wall of the liquid distribution box, and a cover is threadedly connected to the liquid inlet pipe.

[0018] The technical solution of the present invention has the following advantages:

[0019] 1. A high-frequency single-pole low-temperature fine cutting surgical blade of the present invention comprises: a cutting electrode, an insulating sleeve, a water-injected steel pipe, a saline injection cavity, and a water injection channel. The outer side of the cutting electrode is provided with an insulating sleeve, and the outer side of the insulating sleeve is provided with a water-injected steel pipe. There is a gap between the insulating sleeve and the water-injected steel pipe. The tail end of the cutting electrode is connected to one end of the high-frequency voltage output, and the tail end of the water-injected steel pipe is connected to the other end of the high-frequency voltage output. A saline injection cavity is formed between the water-injected steel pipe and the insulating sleeve. The tail end of the water-injected steel pipe is also connected to one end of the water injection channel, and the other end of the water injection channel is connected to an infusion device. Since the cutting electrode can perform operations such as cutting and ablation of tissues at a relatively low temperature (40-70°C) in water, it reduces thermal damage to normal tissues and nerve damage, shortens the operation time, reduces the harm of the operation and the pain after the operation, and makes the patient recover quickly after the operation.

[0020] 2. The high-frequency monopolar low-temperature precision cutting surgical blade of the present invention has a cutting electrode head that is needle-shaped, blade-shaped or hook-shaped, and can be used for surgery on tissues in different cavities. The electrode head can be designed as a retractable electrode to prevent damage to the endoscope.

[0021] 3. The high-frequency monopolar low-temperature fine cutting surgical blade of the present invention performs monopolar cutting electrocoagulation, and the cutting electrode can adopt a smaller diameter, which can better treat nerves, blood vessels and skin.

[0022] 4. The high-frequency single-pole low-temperature fine cutting surgical blade of the present invention has a suction tube that can suck the generated vapor mist and closely adhere to the wound surface to absorb bleeding, preventing toxic molecules generated when the diseased tissue is cut from flowing into the doctor's body, thereby reducing infection for medical staff.

[0023] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0024] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the appearance structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the fluid control device in the present invention;

[0029] Figure 4 It is a schematic diagram of the internal structure of the housing in the present invention;

[0030] Among them, 1-cutting electrode, 2-insulating sleeve, 3-water injection steel pipe, 4-one end of high-frequency voltage output, 5-the other end of high-frequency voltage output, 6-saline injection cavity, 7-water injection channel, 8-suction steel pipe, 9-suction tube, 10-handle, 11-multi-function button switch, 12- Y-shaped tube, 13-shell, 14-first infusion tube, 15-second infusion tube, 16-liquid distribution box, 17-cleaning liquid tank, 18-first normally closed solenoid valve, 19-first switch button, 20-second normally closed solenoid valve, 21-second switch button, 22-first pressure pump, 23-second pressure pump, 24-rocker, 25-first through hole, 26-second through hole, 27-second protrusion, 28-rotating plate, 29-first connecting rod, 30-rotating shaft, 31-fixed block, 32-fixed column, 33-movable plate, 34-opening, 35-guide groove, 36-support rod, 37-spring, 38-first limiting column, 39-second limiting column, 40-heating tube, 41-liquid inlet tube, 42-cover, 43-first protrusion, 44-sliding column. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

[0033] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and 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 orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] The present invention provides a high-frequency single-pole low-temperature fine cutting surgical blade, such as Figure 1-2 As shown, it includes: a cutting electrode 1, an insulating sleeve 2, a water injection steel pipe 3, a saline injection cavity 6, and a water injection channel 7. The outer side of the cutting electrode 1 is sleeved with an insulating sleeve 2, and the outer side of the insulating sleeve 2 is sleeved with a water injection steel pipe 3. There is a gap between the insulating sleeve 2 and the water injection steel pipe 3. The tail end of the cutting electrode 1 is connected to one end 4 of the high-frequency voltage output, and the tail end of the water injection steel pipe 3 is connected to the other end 5 of the high-frequency voltage output. A saline injection cavity 6 is formed between the water injection steel pipe 3 and the insulating sleeve 2. The tail end of the water injection steel pipe 3 is also connected to one end of the water injection channel 7, and the other end of the water injection channel 7 is connected to the infusion device. The electrode head of the cutting electrode 1 is needle-shaped, blade-shaped, or hook-shaped. The outer side of the water injection steel pipe 3 is sleeved with a suction steel pipe 8, and there is a gap between the suction steel pipe 8 and the water injection steel pipe 3. The tail end of the suction steel pipe 8 is connected to one end of the suction tube 9, and the other end of the suction tube 9 is connected to the suction device.

[0036] The working principle and beneficial technical effects of the above technical solution are as follows: the cutting electrode 1 is insulated and isolated from the water-injected steel pipe 3, and the two ends of the electric field output of the high-frequency electric knife are welded respectively, and physiological saline is injected through the water injection channel 7. When the physiological saline flowing out of the water-injected steel pipe 3 is activated by high frequency and high voltage, conductive chloride ions are generated, and the charged ions flow the current on the water-injected steel pipe 3 to the monopolar cutting electrode 1 and the surrounding cutting tissue, forming a high-frequency electric field output loop. The cutting electrode with a larger current completes the cutting of soft tissues, nerves, and vascular tissues in water. At the same time, due to the effect of flowing water, the temperature of the cut wound surface is taken away, which plays a role in hypothermia and cooling. A suction steel pipe 8 is put on the outside of the water-injected steel pipe 3. The water mist and gas generated during cutting can be sucked away through the suction hole above the suction steel pipe connected to the suction device, and the mist will not be emitted into the air. The cutting electrode can perform cutting, ablation and other surgeries on tissues at a relatively low temperature (40-70°C) in water. At the same time, it reduces thermal damage to normal tissues and nerve damage, shortens operation time, reduces surgical injuries and postoperative pain, and enables patients to recover faster after surgery.

[0037] In one embodiment, a handle 10 is provided on the outside of the suction steel tube 8 for easy holding during surgical operations.

[0038] In one embodiment, a multifunctional button switch 11 is provided on the handle 10. The multifunctional button switch 11 has dual functions of electric cutting and electric coagulation, which is convenient for surgical personnel to switch functions.

[0039] In one embodiment, Figure 3-4 As shown, it also includes a fluid control device, which includes: a Y-shaped tube 12, a shell 13,

[0040] The first connection end 121 of the Y-shaped tube 12 is connected to the end of the water injection channel 7 away from the water injection steel pipe 3, and the first infusion tube 14 and the second infusion tube 15 are respectively arranged in the shell 13. One end of the first infusion tube 14 extends out of the shell 13 and is connected to the second connection end 122 of the Y-shaped tube 12, and the other end of the first infusion tube 14 extends out of the shell 13 and is connected to the liquid distribution box 16. One end of the second infusion tube 15 extends out of the shell 13 and is connected to the third connection end 123 of the Y-shaped tube 12, and the other end of the second infusion tube 15 extends out of the shell 13 and is connected to the cleaning liquid tank 17;

[0041] A first normally closed solenoid valve 18 is provided on the first infusion tube 14, and the first normally closed solenoid valve 18 is located in the shell 13. A first switch button 19 is provided on the top of the first normally closed solenoid valve 18. A second normally closed solenoid valve 20 is provided on the second infusion tube 15, and the second normally closed solenoid valve 20 is located in the shell 13. A second switch button 21 is provided on the top of the second normally closed solenoid valve 20. A first pressure pump 22 is provided on one end of the first infusion tube 14 close to the liquid distribution tank 16, and a second pressure pump 23 is provided on one end of the second infusion tube 15 close to the cleaning liquid tank 17.

[0042] The working principle and beneficial technical effects of the above technical solution are as follows: physiological saline is prepared in the liquid preparation box 16, and cleaning liquid is provided in the cleaning liquid tank 17. When surgical cutting is performed and physiological saline is needed, the first switch button 19 is pressed to allow the physiological saline to be transported to the cutting electrode through the first infusion tube 14, the first connecting end 121 of the Y-shaped tube 12, and the water injection channel 7 for ablation cutting; when the operation is completed, the second switch button 21 is pressed to allow the cleaning liquid to be sprayed out through the second infusion tube 15, the first connecting end 121 of the Y-shaped tube 12, and the water injection channel 7 to clean and flush the pipeline, and then store it for next use.

[0043] In one embodiment, a seesaw 24 is disposed in the housing 13, one end of the seesaw 24 is located above the first switch button 19, and the other end of the seesaw 24 is located above the second switch button 21, and the left and right ends of the top wall of the housing 13 are respectively provided with a first through hole 25 and a second through hole 26, a first protrusion 43 is disposed on one side of the top of the seesaw 24, and the first protrusion 43 passes through the first through hole 25, and a second protrusion 27 is disposed on the other side of the top of the seesaw 24, and the second protrusion 27 passes through the second through hole 26;

[0044] A rotating plate 28 is disposed below the seesaw 24, one end of a first connecting rod 29 is vertically connected to the middle of the seesaw 24, the other end of the first connecting rod 29 is vertically connected to the rotating plate 28, one end of a rotating shaft 30 is vertically connected to the rotating plate 28 near the first connecting rod 29, and the other end of the rotating shaft 30 is rotatably connected to the inner wall of the housing 13;

[0045] The left end of the rotating plate 28 is provided with a sliding column 44, and the rotating plate 28 is provided with a fixing block 31, and the fixing block 31 is located between the sliding column 44 and the rotating shaft 30. The inner wall of the shell 13 is provided with a fixing column 32, and the fixing column 32 is located below the left end of the rotating plate 28. A vertical moving plate 33 is provided in the shell 13, and an opening 34 extending in the length direction is provided at the upper end of the moving plate 33, and the sliding column 44 is stuck in the opening 34. The lower end of the moving plate 33 is provided with a The guide groove 35 extends therethrough, the fixed column 32 passes through the guide groove 35, one end of a horizontal support rod 36 is connected to the lower end of the movable plate 33, the other end of the support rod 36 extends to the right, one end of a spring 37 is connected to the right end of the support rod 36, the other end of the spring 37 is connected to the fixed block 31, and a first limiting column 38 and a second limiting column 39 are respectively arranged on both sides of the rotating shaft 30 below the rotating plate 28, and the first limiting column 38 and the second limiting column 39 are fixed on the inner wall of the shell 13.

[0046] The working principle and beneficial technical effects of the above technical solution are as follows: when the operation is performed, the first protrusion 43 is pressed, and the rotating plate 28 rotates counterclockwise around the rotating shaft 30, and the left end of the seesaw 24 presses the first switch button 19 downward, so that the first infusion tube 14 is turned on and physiological saline is supplied. The sliding column 44 on the rotating plate 28 drives the moving plate 33 downward to move downward along the fixed column 32. After the operation is completed, the first protrusion 43 is released, and under the elastic force of the spring 37, it returns to the initial equilibrium state; After the operation, when it is necessary to clean the pipe wall, press the second protrusion 27, the rotating plate 28 rotates clockwise around the rotating shaft 30, the sliding column 44 moves upward along the opening 34, the spring 37 is stretched, the second switch button 21 is pressed, the second infusion tube 15 is turned on, and the cleaning fluid flushes the pipe. After flushing, release the second protrusion 27, and under the elastic force of the spring 37, the rocker 24 returns to its initial balanced state, and the second infusion tube 15 and the first infusion tube 14 are both in a closed state.

[0047] When the first infusion tube 14 and the second infusion tube 15 are not in use, the seesaw 24 is in a balanced state, which prevents saline and cleaning fluid from flowing into the surgical blade, resulting in long-term exposure to moisture, causing corrosion of the blade, affecting the service life, and also facilitates storage in a disinfection cabinet; when in the working state, the first protrusion 43 is pressed, and due to the action of the seesaw 24, the second protrusion 27 is always in an upward state. At this time, only saline is allowed to flow to the cutting electrode 1 for cutting and ablation, and the second infusion tube 15 is in a closed state, thereby preventing the cleaning fluid from entering the affected area, affecting the surgical effect, and even irritating the affected area, increasing the risk of the operation. When the operation is completed and the cleaning is performed, when the second infusion tube 15 is in a conducting state, the first infusion tube 14 is always in a closed state, preventing the leakage of saline, resulting in a poor cleaning effect.

[0048] In one embodiment, a heating pipe 40 is provided in the liquid distribution box 16, a liquid inlet pipe 41 is provided on the outer wall of the liquid distribution box 16, and a cover 42 is threadedly connected to the liquid inlet pipe 41. The heating pipe 40 can heat the physiological saline solution to be closer to the body temperature and reduce the stimulation to the patient's tissue. When the cover 42 is opened, the cleaning liquid can be added to the cleaning liquid tank 17 through the liquid inlet pipe 41.

[0049] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A high-frequency single-pole low-temperature fine cutting surgical blade, characterized in that: include: A cutting electrode (1), an insulating sleeve (2), a water injection steel pipe (3), a saline injection cavity (6), and a water injection channel (7), wherein the outer side of the cutting electrode (1) is provided with an insulating sleeve (2), the outer side of the insulating sleeve (2) is provided with a water injection steel pipe (3), a gap is provided between the insulating sleeve (2) and the water injection steel pipe (3), the tail end of the cutting electrode (1) is connected to one end (4) of the high-frequency voltage output, the tail end of the water injection steel pipe (3) is connected to the other end (5) of the high-frequency voltage output, a saline injection cavity (6) is formed between the water injection steel pipe (3) and the insulating sleeve (2), the tail end of the water injection steel pipe (3) is also connected to one end of the water injection channel (7), and the other end of the water injection channel (7) is connected to an infusion set; and also includes a fluid control device, the fluid control device comprising: a Y-shaped tube (12), a shell (13), The first connection end (121) of the Y-shaped tube (12) is connected to an end of the water injection channel (7) away from the water injection steel pipe (3); a first infusion tube (14) and a second infusion tube (15) are arranged in intervals in the shell (13); one end of the first infusion tube (14) extends out of the shell (13) and is connected to the second connection end (122) of the Y-shaped tube (12); the other end of the first infusion tube (14) extends out of the shell (13) and is connected to the liquid distribution box (16); one end of the second infusion tube (15) extends out of the shell (13) and is connected to the third connection end (123) of the Y-shaped tube (12); the other end of the second infusion tube (15) extends out of the shell (13) and is connected to the cleaning liquid tank (17); The first infusion tube (14) is provided with a first normally closed solenoid valve (18), the first normally closed solenoid valve (18) is located in the housing (13), and a first switch button (19) is provided at the top of the first normally closed solenoid valve (18); the second infusion tube (15) is provided with a second normally closed solenoid valve (20), the second normally closed solenoid valve (20) is located in the housing (13), and a second switch button (21) is provided at the top of the second normally closed solenoid valve (20); a first pressure pump (22) is provided at one end of the first infusion tube (14) close to the liquid distribution box (16), and a second pressure pump (23) is provided at one end of the second infusion tube (15) close to the cleaning liquid box (17); A seesaw (24) is arranged in the housing (13); one end of the seesaw (24) is located above the first switch button (19), and the other end of the seesaw (24) is located above the second switch button (21); a first through hole (25) and a second through hole (26) are respectively arranged at the left and right ends of the top wall of the housing (13); a first protrusion (43) is arranged on one side of the top end of the seesaw (24), and the first protrusion (43) passes through the first through hole (25); a second protrusion (27) is arranged on the other side of the top end of the seesaw (24), and the second protrusion (27) passes through the second through hole (26); A rotating plate (28) is provided below the seesaw (24); one end of a first connecting rod (29) is vertically connected to the middle of the seesaw (24); the other end of the first connecting rod (29) is vertically connected to the rotating plate (28); one end of a rotating shaft (30) is vertically connected to a portion of the rotating plate (28) close to the first connecting rod (29); and the other end of the rotating shaft (30) is rotatably connected to the inner wall of the housing (13); A sliding column (44) is provided at the left end of the rotating plate (28), a fixed block (31) is provided on the rotating plate (28), and the fixed block (31) is located between the sliding column (44) and the rotating shaft (30). A fixed column (32) is provided on the inner wall of the shell (13), and the fixed column (32) is located below the left end of the rotating plate (28). A vertical movable plate (33) is provided in the shell (13), and an opening (34) extending in the length direction is provided at the upper end of the movable plate (33), and the sliding column (44) is stuck in the opening (34). A guide groove (35) extending in the length direction is provided at the lower end of the movable plate (33). The fixed column (32) passes through the guide groove (35), one end of a horizontal support rod (36) is connected to the lower end of the movable plate (33), the other end of the support rod (36) extends to the right, one end of a spring (37) is connected to the right end of the support rod (36), the other end of the spring (37) is connected to the fixed block (31), and a first limiting column (38) and a second limiting column (39) are respectively arranged on both sides of the rotating shaft (30) below the rotating plate (28), and the first limiting column (38) and the second limiting column (39) are both fixed on the inner wall of the shell (13); the electrode head of the cutting electrode (1) is needle-shaped, blade-shaped or hook-shaped.

2. A high-frequency single-pole low-temperature fine cutting surgical blade according to claim 1, characterized in that: A suction steel pipe (8) is sleeved on the outside of the water injection steel pipe (3), a gap is provided between the suction steel pipe (8) and the water injection steel pipe (3), the tail end of the suction steel pipe (8) is connected to one end of a suction pipe (9), and the other end of the suction pipe (9) is connected to a suction device.

3. A high-frequency single-pole low-temperature fine cutting surgical blade according to claim 2, characterized in that: A handle (10) is provided on the outer side of the suction steel tube (8).

4. A high-frequency single-pole low-temperature fine cutting surgical blade according to claim 3, characterized in that: The handle (10) is provided with a multifunctional button switch (11).

5. A high-frequency single-pole low-temperature fine cutting surgical blade according to claim 1, characterized in that: A heating pipe (40) is arranged in the liquid distribution box (16), a liquid inlet pipe (41) is arranged on the outer wall of the liquid distribution box (16), and a cover (42) is threadedly connected to the liquid inlet pipe (41).

Images