Disposable two-stage scalpel

Abstract

The application discloses a disposable double-stage incision knife, and relates to the technical field of medical equipment, which comprises a core rod, a connecting rod, and a cutter assembly. The connecting rod is installed at one end of the core rod. The application has the beneficial effects of being provided with a connecting assembly, a multi-cavity tube and the cutter assembly, being provided with a second holding piece and a first holding piece for facilitating holding and portable operation during use, and being provided with an external wireless signal transceiver for timely remote management of operation data during power supply. The application is provided with a first connecting sleeve, a second connecting sleeve and an auxiliary installation assembly for normal separation of the first connecting sleeve and the second connecting sleeve during equipment separation and use. The first connecting sleeve and the second connecting sleeve are limited during non-use and after installation, so that the equipment reset condition is avoided. The first spring and the second spring are installed to achieve a double-buffering protection effect, thereby reducing the labor intensity during maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to a disposable double-stage incision knife. Background Art

[0002] Endoscopic duodenal sphincterotomy (hereinafter referred to as EST) is further developed on the basis of the therapeutic technology of endoscopic retrograde cholangiopancreatography (hereinafter referred to as ERCP). It is a therapeutic technology that uses a high-frequency electrocautery knife to cut the duodenal sphincter and the terminal part of the common bile duct under endoscopy. EST is an important therapeutic technology in the field of endoscopy and is also a prerequisite for other endoscopic treatments. For example, most diagnostic and treatment techniques such as bile duct stone removal, bile duct stenosis dilation, biliary stent drainage, bile duct tumor biopsy and radioactive source insertion and internal irradiation require EST before completing various endoscopic treatments. EST has the advantages of less surgical trauma, fast postoperative recovery and high success rate. For this reason, the application of EST has become increasingly widespread, and high-frequency electrocautery knife is a necessary instrument in EST surgery.

[0003] In the prior art, after the incision knife is used, it needs to be inspected and maintained regularly. Since most of them adopt an integrated connection structure, it is difficult to quickly separate the equipment during maintenance, which increases the labor intensity. At the same time, most of them adopt a monopolar method, which also affects the efficiency during use. Therefore, the present invention needs to design a disposable double-stage incision knife to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a disposable two-stage incision knife to solve the problem proposed in the above background technology that the incision knife needs to be regularly inspected and maintained after use. Since most of them adopt an integrated connection structure, it is difficult to quickly separate the equipment during maintenance, which increases the labor intensity. At the same time, most of them adopt a single-pole method, which also affects the efficiency during use.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a disposable dual-stage incision knife, comprising:

[0006] core rod;

[0007] A connecting rod, the connecting rod is installed at one end of the core rod;

[0008] A connecting assembly is installed at an end of the connecting rod away from the core rod;

[0009] The first gear wheel is connected with the gear train of the said first group of wheels, and the second gear wheel is connected with the gear train of the said first group of wheels, and the gear train of the said first group of wheels is connected with the gear train of the said second group of wheels.

[0010] The cutter assembly is installed at one end of the multi-lumen tube away from the connecting assembly.

[0011] Preferably, the cutter assembly includes a cutter body and a cutting wire. The cutter body is installed at one end of the multi-lumen tube away from the connecting assembly, and a guide wire body extending to the inside of the multi-lumen tube is installed on one side of the cutter body. A positioning column extending to the top of the multi-lumen tube is installed on one side of the cutter body and above the guide wire body. The other side of the cutter body is installed with equidistantly distributed cutting wires, and equidistantly distributed conductive wires are installed below the cutting wires.

[0012] Preferably, the connecting assembly includes an end cap and an injection pipe, the end of the connecting rod away from the core rod is fixedly connected to the end cap, the bottom of the end cap is fixedly connected to the second electrode block, the end of the end cap away from the connecting rod is fixedly connected to the injection pipe, and the other end of the injection pipe is connected to the multi-lumen tube.

[0013] Preferably, a damping shock absorber is installed inside the first spring, and a first slide plate and a first spring of the same structure are installed inside the second connecting sleeve and below the fixed frame, the top end of the first sliding rack is fixedly connected to the first connecting push rod, the top of the first connecting push rod is fixedly connected to one of the first slide plates, the bottom end of the second sliding rack is fixedly connected to the second connecting push rod, and the bottom end of the second connecting push rod is fixedly connected to the other first slide plate.

[0014] Preferably, a second limiting guide rail is provided on the inner wall of the second connecting sleeve and located on one side of the first sliding rack, a second limiting slider is slidably connected inside the second limiting guide rail, and one end of the second limiting slider is fixedly connected to the first sliding rack.

[0015] Preferably, a first limiting guide rail is provided inside the fixing frame, a first limiting slider is slidably connected inside the first limiting guide rail, and one end of the first limiting slider is fixedly connected to the second sliding rack.

[0016] Preferably, a cover plate is installed on one side of the second connecting sleeve, a handwheel is installed inside the cover plate, one end of the handwheel is fixedly connected to a rotating shaft, the rotating shaft is fixedly connected to the rotating gear, a limiting hole is provided on the outside of the handwheel, and a limiting rod extending to the inside of the second connecting sleeve is installed inside the limiting hole.

[0017] Preferably, an installation cavity is provided inside the second connecting sleeve for use with an auxiliary installation component, a control valve is fixedly connected to the outside of the injection pipe, a liquid inlet opening extending into the interior of the injection pipe is installed on the top of the control valve, and a second grip is fixedly connected to one end of the core rod away from the connecting rod, and a cavity is provided inside the second grip.

[0018] Preferably, a mounting groove for connecting with the connecting rod is provided inside the first connecting sleeve, and the top and bottom of the first connecting sleeve are fixedly connected with a first holding piece, and a first electrode block extending into the interior of the connecting rod is installed on one side of one of the first holding pieces.

[0019] Preferably, a wireless signal transceiver is installed on the outside of the core rod, a main control board is fixedly connected to the inside of the wireless signal transceiver, a control chip is fixedly connected to the outside of the main control board, and the first electrode block, the second electrode block, the control valve, the conductive wire and the guide wire body are all electrically connected to the control chip.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention is provided with a connecting assembly, a multi-lumen tube, and a cutter assembly. The multi-lumen tube is connected to the liquid injection pipe for use. By opening the control valve, the required liquid is injected from the liquid inlet opening. The cutting wire is installed to cooperate with normal cutting. The fixing frame and the guide wire body are installed to cooperate with the normal power-on operation of the first electrode block and the second electrode block. The second gripping member and the first gripping member are installed to facilitate the portable operation during use. The operation data during power-on is timely and remotely managed through an external wireless signal transceiver.

[0022] 2、The utility model sets up first connecting sleeve, second connecting sleeve and auxiliary installation component, when equipment is separated and uses, open the apron, remove the limit of limit insertion rod, manual rotation hand wheel, drive rotating shaft rotation, drive rotating gear rotation, drive first sliding rack and second sliding rack all to the opposite direction movement, drive second connecting push rod and first connecting push rod all to the opposite direction movement, extrude corresponding first spring, through the buffer protection treatment of damper shock absorber, drive the clamping block to slide out the inside of connecting plate, convenient to first connecting sleeve whole removal, thereby first connecting sleeve and second connecting sleeve normal separation treatment, when using, through the limit hole and limit insertion rod of setting limit the whole unused, complete installation and limit treatment, avoid the equipment reset condition, through the installation has first spring and second spring to play double buffering protection effect, reduce the labor intensity when maintaining. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is whole structure perspective drawing for the utility model;

[0024] Figure 2 It is connecting component structure enlarged view for the utility model;

[0025] Figure 3 It is cutter assembly structure enlarged view for the utility model;

[0026] Figure 4 It is first connecting sleeve and second connecting sleeve structure inside view for the utility model;

[0027] Figure 5 It is first connecting sleeve and second connecting sleeve local structure view for the utility model;

[0028] Figure 6 It is auxiliary installation component structure enlarged view for the utility model.

[0029] In the figure: 1-core rod, 2-connecting rod, 3-first connecting sleeve, 4-second connecting sleeve, 5-first gripping piece, 6-first electrode block, 7-second gripping piece, 8-connecting assembly, 9-multi-lumen tube, 10-cutter assembly, 11-end cap, 12-second electrode block, 13-liquid injection pipeline, 14-control valve, 15-liquid inlet opening, 16-mounting groove, 17-cover plate, 18-handwheel, 19-limiting hole, 20-limiting plug rod, 21-auxiliary mounting assembly, 22-first slide plate, 23-first spring, 2 4-damping shock absorber, 25-first connecting push rod, 26-second connecting push rod, 27-first sliding rack, 28-second sliding rack, 29-fixed frame, 30-second spring, 31-first limiting guide rail, 32-first limiting slider, 33-second limiting guide rail, 34-second limiting slider, 35-rotating gear, 36-rotating shaft, 37-installation cavity, 38-cutting wire, 39-conductive wire, 40-cutter body, 41-positioning column, 42-guide wire body, 43-block, 44-connecting plate. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The present invention provides a technical solution: a disposable double-stage incision knife, comprising:

[0032] Core rod 1;

[0033] Connecting rod 2, connecting rod 2 is installed at one end of core rod 1;

[0034] The connecting assembly 8 is installed at the end of the connecting rod 2 away from the core rod 1;

[0035] The first connecting sleeve 3 is installed on the outside of the core rod 1 and the connecting rod 2. A second connecting sleeve 4 is installed on one side of the first connecting sleeve 3. An auxiliary installation component 21 is installed inside the second connecting sleeve 4. The auxiliary installation component 21 includes a rotating gear 35 and a fixed frame 29. The inside of the second connecting sleeve 4 is fixedly connected to the fixed frame 29. One side of the fixed frame 29 is slidably connected to the second sliding rack 28. The second sliding rack 28 is rotatably connected to the rotating gear 35 on the side away from the fixed frame 29. The rotating gear 35 is slidably connected to the first sliding rack 27 on the side away from the second sliding rack 28. The first sliding rack 27 and the second sliding rack The movable racks 28 are meshed with the rotating gear 35. The top of the fixed frame 29 is slidably connected to the first slide 22. The side of the first slide 22 away from the fixed frame 29 is fixedly connected to the equally distributed first springs 23. The top ends of the first springs 23 are fixedly connected to the inside of the second connecting sleeve 4. The side of the fixed frame 29 away from the second sliding rack 28 is fixedly connected to the equally distributed second springs 30. The side of the second spring 30 away from the fixed frame 29 is slidably connected to the connecting plate 44. One side of the connecting plate 44 is fixedly connected to the first connecting sleeve 3. The bottom of the first slide 22 is fixedly connected to the block 43 extending to the inside of the connecting plate 44.

[0036] The cutter assembly 10 is installed at one end of the multi-lumen tube 9 away from the connecting assembly 8.

[0037] It can be understood that the present invention is provided with a connecting component 8, a multi-lumen tube 9 and a cutter component 10, which are used in conjunction with each other by connecting the multi-lumen tube 9 to the injection pipe 13, and by opening the control valve 14, the required liquid is injected from the liquid inlet opening 15, and used in conjunction with each other, by installing a cutting wire 38 to cooperate with normal cutting, by installing a fixing frame 29 and a guide wire body 42 to cooperate with the normal power-on operation of the first electrode block 6 and the second electrode block 12, by installing a second gripping piece 7 and a first gripping piece 5 to facilitate the portable operation when used, and by an external wireless signal transceiver to timely remotely manage the operation data when powered on, and when the equipment is separated for use, open the cover 17, remove the limiting rod 20 with a limiting function, manually turn the handwheel 18, drive the rotating shaft 36 to rotate, drive the rotating gear 35 to rotate, and drive the first sliding rack 27 and the second sliding rack. 28 moves in opposite directions, driving the second connecting push rod 26 and the first connecting push rod 25 to move in opposite directions, squeezing the corresponding first spring 23, and performing buffering protection through the damping shock absorber 24, driving the block 43 to slide out of the connecting plate 44, making it convenient to remove the first connecting sleeve 3 as a whole, thereby performing normal separation processing on the first connecting sleeve 3 and the second connecting sleeve 4. When in use, the limiting hole 19 and the limiting plug rod 20 are opened to limit the entirety after it is not in use and the installation is completed to avoid the equipment resetting situation. The first spring 23 and the second spring 30 are installed to achieve a double buffering protection effect, which reduces the labor intensity during maintenance. When replacing, the injection pipe 13 is separated from the multi-lumen tube 9, and the multi-lumen tube 9 is separated from the cutter assembly 10. The multi-lumen tube 9 is replaced normally to cooperate with the disposable effect.

[0038] See also Figure 1 and Figure 3 The present invention provides a technical solution: the cutter assembly 10 includes a cutter body 40 and a cutting wire 38, the cutter body 40 is installed at one end of the multi-lumen tube 9 away from the connecting assembly 8, and a guide wire body 42 extending to the inside of the multi-lumen tube 9 is installed on one side of the cutter body 40, and a positioning column 41 extending to the top of the multi-lumen tube 9 is installed on one side of the cutter body 40 and above the guide wire body 42, and the other side of the cutter body 40 is installed with equidistantly distributed cutting wires 38, and equidistantly distributed conductive wires 39 are installed below the cutting wires 38.

[0039] It can be understood that, in the present invention, the fixing frame 29 and the guide wire body 42 are installed to cooperate with the normal power-on operation of the first electrode block 6 and the second electrode block 12 .

[0040] See also Figure 1 and Figure 2The present invention provides a technical solution: the connecting assembly 8 includes an end cap 11 and an injection pipe 13, the end of the connecting rod 2 away from the core rod 1 is fixedly connected to the end cap 11, the bottom of the end cap 11 is fixedly connected to the second electrode block 12, the end of the end cap 11 away from the connecting rod 2 is fixedly connected to the injection pipe 13, and the other end of the injection pipe 13 is connected to the multi-lumen tube 9.

[0041] It is understandable that, in the present invention, the multi-lumen tube 9 is connected to the liquid injection pipe 13 for use in conjunction with each other, and the control valve 14 is opened to inject the required liquid from the liquid inlet opening 15 for use in conjunction with each other.

[0042] See also Figure 4 and Figure 5 The present invention provides a technical solution: a damping shock absorber 24 is installed inside the first spring 23, a first slide 22 and a first spring 23 of the same structure are installed inside the second connecting sleeve 4 and below the fixed frame 29, the top end of the first sliding rack 27 is fixedly connected to the first connecting push rod 25, the top of the first connecting push rod 25 is fixedly connected to one of the first slides 22, the bottom end of the second sliding rack 28 is fixedly connected to the second connecting push rod 26, and the bottom end of the second connecting push rod 26 is fixedly connected to the other first slide 22.

[0043] It can be understood that in the present invention, the first sliding rack 27 and the second sliding rack 28 are driven to move in opposite directions, and the second connecting push rod 26 and the first connecting push rod 25 are driven to move in opposite directions, squeezing the corresponding first spring 23, and performing buffering protection through the damping shock absorber 24, driving the block 43 to slide out of the inside of the connecting plate 44, making it convenient to remove the first connecting sleeve 3 as a whole, thereby performing normal separation processing on the first connecting sleeve 3 and the second connecting sleeve 4. When in use, the installation of the first spring 23 and the second spring 30 has a double buffering protection effect, reducing the labor intensity during maintenance.

[0044] See also Figure 1 、 Figure 5 and Figure 6 The present invention provides a technical solution: a second limiting guide rail 33 is opened on the inner wall of the second connecting sleeve 4 and located on one side of the first sliding rack 27, and a second limiting slider 34 is slidably connected to the inside of the second limiting guide rail 33, and one end of the second limiting slider 34 is fixedly connected to the first sliding rack 27.

[0045] It can be understood that, in the present invention, the motion trajectory of the first sliding rack 27 is limited by providing the second limiting guide rail 33 and the second limiting slider 34 .

[0046] See also Figure 1 、 Figure 5 And Figure 6 The present application provides a technical scheme: the inside of the fixing frame 29 is provided with a first limiting guide rail 31, the inside of the first limiting guide rail 31 is slidably connected with a first limiting sliding block 32, and one end of the first limiting sliding block 32 is fixedly connected with the second sliding rack 28.

[0047] It can be understood that the movement track of the second sliding rack 28 is limited by the first limiting sliding block 32 and the first limiting guide rail 31 in the present application.

[0048] Please refer to Figure 1 , Figure 5 and Figure 6 The present application provides a technical scheme: one side of the second connecting sleeve 4 is provided with a cover plate 17, the inside of the cover plate 17 is provided with a hand wheel 18, one end of the hand wheel 18 is fixedly connected with a rotating shaft 36, the rotating shaft 36 is fixedly connected with a rotating gear 35, the outside of the hand wheel 18 is provided with a limiting hole 19, and the inside of the limiting hole 19 is provided with a limiting plug 20 extending into the inside of the second connecting sleeve 4.

[0049] It can be understood that in the present application, when the device is separated for use, the cover plate 17 is opened, the limiting plug 20 for limiting is removed, the hand wheel 18 is manually rotated to drive the rotating shaft 36 to rotate and drive the rotating gear 35 to rotate, and the limiting hole 19 and the limiting plug 20 are used to limit the whole device when not in use or after installation, so that the device is prevented from being reset.

[0050] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 6 The present application provides a technical scheme: the inside of the second connecting sleeve 4 is provided with an installation cavity 37 used in cooperation with an auxiliary installation assembly 21, the outside of the liquid injection pipeline 13 is fixedly connected with a control valve 14, the top of the control valve 14 is provided with a liquid inlet opening 15 extending into the inside of the liquid injection pipeline 13, the end of the core rod 1 away from the connecting rod 2 is fixedly connected with a second gripping piece 7, and the inside of the second gripping piece 7 is provided with a cavity.

[0051] It can be understood that in the present application, the multi-cavity tube 9 is used in cooperation with the liquid injection pipeline 13, the required liquid is injected from the liquid inlet opening 15 by opening the control valve 14, and the two are used in cooperation.

[0052] Please refer to Figure 1 , Figure 4 and Figure 5The present invention provides a technical solution: an installation groove 16 is opened inside the first connecting sleeve 3 for connecting with the connecting rod 2, and the top and bottom of the first connecting sleeve 3 are fixedly connected with a first gripping piece 5, and one side of one of the first gripping pieces 5 is installed with a first electrode block 6 extending into the interior of the connecting rod 2.

[0053] It can be understood that, in the present invention, the first gripping member 5 is used in conjunction with manual portability.

[0054] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The present invention provides a technical solution: a wireless signal transceiver is installed on the outside of the core rod 1, a main control board is fixedly connected to the inside of the wireless signal transceiver, a control chip is fixedly connected to the outside of the main control board, and the first electrode block 6, the second electrode block 12, the control valve 14, the conductive wire 39 and the guide wire body 42 are all electrically connected to the control chip.

[0055] It can be understood that in the present invention, the first electrode block 6, the second electrode block 12, the control valve 14, the conductive wire 39 and the guide wire body 42 are controlled and processed one by one by the control chip to facilitate normal use. The wireless signal transceiver is connected to the external terminal. The model of the wireless signal transceiver is 18M88WI2000R and the model of the control chip is M88WI6032D.

[0056] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Disposable double-stage incision knife, characterized by: include: core rod (1); A connecting rod (2), the connecting rod (2) being mounted on one end of the core rod (1); A connecting assembly (8), the connecting assembly (8) being mounted on an end of the connecting rod (2) away from the core rod (1); A first connecting sleeve (3) is installed on the outside of the core rod (1) and the connecting rod (2); a second connecting sleeve (4) is installed on one side of the first connecting sleeve (3); an auxiliary mounting assembly (21) is installed inside the second connecting sleeve (4); the auxiliary mounting assembly (21) includes a rotating gear (35) and a fixed frame (29); the inside of the second connecting sleeve (4) is fixedly connected to the fixed frame (29); one side of the fixed frame (29) is slidably connected to a second sliding rack (28); the second sliding rack (28) is rotatably connected to a rotating gear (35) on a side away from the fixed frame (29); the rotating gear (35) is slidably connected to a first sliding rack (27) on a side away from the second sliding rack (28); the first sliding rack (27) and the first sliding rack (27) are rotatably connected to a rotating gear (35) on a side away from the second sliding rack (28); The two sliding racks (28) are meshed with the rotating gear (35), the top of the fixed frame (29) is slidably connected to the first slide plate (22), the side of the first slide plate (22) away from the fixed frame (29) is fixedly connected to the first spring (23) distributed at equal intervals, the top end of the first spring (23) is fixedly connected to the inside of the second connecting sleeve (4), the side of the fixed frame (29) away from the second sliding rack (28) is fixedly connected to the second spring (30) distributed at equal intervals, the side of the second spring (30) away from the fixed frame (29) is slidably connected to the connecting plate (44), one side of the connecting plate (44) is fixedly connected to the first connecting sleeve (3), and the bottom of the first slide plate (22) is fixedly connected to the block (43) extending to the inside of the connecting plate (44); A cutter assembly (10) is installed at one end of the multi-lumen tube (9) away from the connecting assembly (8), and the cutter assembly (10) includes a cutter body (40) and a cutting wire (38). The cutter body (40) is installed at one end of the multi-lumen tube (9) away from the connecting assembly (8), and a guide wire body (42) extending to the inside of the multi-lumen tube (9) is installed on one side of the cutter body (40). A positioning column (41) extending to the top of the multi-lumen tube (9) is installed on one side of the cutter body (40) and located above the guide wire body (42). The other side of the cutter body (40) is installed with equidistantly distributed cutting wires (38), and equidistantly distributed conductive wires (39) are installed below the cutting wires (38).

2. The double-stage incision knife for sexual use according to claim 1, characterized in that: The connecting assembly (8) comprises an end cap (11) and an injection pipe (13); one end of the connecting rod (2) away from the core rod (1) is fixedly connected to the end cap (11); the bottom of the end cap (11) is fixedly connected to the second electrode block (12); one end of the end cap (11) away from the connecting rod (2) is fixedly connected to the injection pipe (13); the other end of the injection pipe (13) is connected to the multi-lumen tube (9).

3. The double-stage incision knife for sexual use according to claim 2, characterized in that: A damping shock absorber (24) is installed inside the first spring (23), a first slide plate (22) and a first spring (23) are installed inside the second connecting sleeve (4) and below the fixing frame (29), a first connecting push rod (25) is fixedly connected to the top end of the first sliding rack (27), the top of the first connecting push rod (25) is fixedly connected to one of the first slide plates (22), a second connecting push rod (26) is fixedly connected to the bottom end of the second sliding rack (28), and the bottom end of the second connecting push rod (26) is fixedly connected to the other first slide plate (22).

4. The dual-stage incision knife for sexual use according to claim 3, characterized in that: A second limiting guide rail (33) is provided on the inner wall of the second connecting sleeve (4) and located on one side of the first sliding rack (27). A second limiting slider (34) is slidably connected inside the second limiting guide rail (33). One end of the second limiting slider (34) is fixedly connected to the first sliding rack (27).

5. The double-stage incision knife for sexual use according to claim 4, characterized in that: A first limiting guide rail (31) is provided inside the fixing frame (29), a first limiting slider (32) is slidably connected inside the first limiting guide rail (31), and one end of the first limiting slider (32) is fixedly connected to the second sliding rack (28).

6. The dual-stage incision knife for sexual use according to claim 5, characterized in that: A cover plate (17) is installed on one side of the second connecting sleeve (4), a hand wheel (18) is installed inside the cover plate (17), one end of the hand wheel (18) is fixedly connected to a rotating shaft (36), the rotating shaft (36) is fixedly connected to the rotating gear (35), a limiting hole (19) is provided on the outside of the hand wheel (18), and a limiting rod (20) extending to the inside of the second connecting sleeve (4) is installed inside the limiting hole (19).

7. The dual-stage incision knife for sexual use according to claim 6, characterized in that: The interior of the second connecting sleeve (4) is provided with an installation cavity (37) for use with the auxiliary installation component (21); the outer side of the liquid injection pipe (13) is fixedly connected to a control valve (14); the top of the control valve (14) is provided with a liquid inlet opening (15) extending into the interior of the liquid injection pipe (13); the end of the core rod (1) away from the connecting rod (2) is fixedly connected to a second gripping member (7); and the interior of the second gripping member (7) is provided with a cavity.

8. The dual-stage incision knife for sexual use according to claim 7, characterized in that: The first connecting sleeve (3) is provided with a mounting groove (16) for connection with the connecting rod (2), and the top and bottom of the first connecting sleeve (3) are fixedly connected to first gripping members (5), wherein one side of one of the first gripping members (5) is provided with a first electrode block (6) extending into the interior of the connecting rod (2).

9. The dual-stage incision knife for sexual use according to claim 8, characterized in that: A wireless signal transceiver is installed on the outside of the core rod (1), a main control board is fixedly connected to the inside of the wireless signal transceiver, a control chip is fixedly connected to the outside of the main control board, and the first electrode block (6), the second electrode block (12), the control valve (14), the conductive wire (39) and the guide wire body (42) are all electrically connected to the control chip.

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