Disposable two-stage incision knife

Abstract

The invention discloses a disposable two-stage incision knife, and relates to the technical field of medical equipment. The cutting device has the beneficial effects that the cutting device is provided with the connecting assembly, the multi-cavity tube and the cutter assembly, the second holding piece and the first holding piece are installed, so that holding and portable operation during use are facilitated, and operation data during electrification are remotely managed in time through an external wireless signal transceiver; the first connecting sleeve, the second connecting sleeve and the auxiliary mounting assembly are arranged, when equipment is separated for use, the first connecting sleeve and the second connecting sleeve are normally separated, and when the equipment is used, limiting treatment is conducted after the whole equipment is not used and mounting is completed by arranging a limiting hole and a limiting inserting rod; and by installing the first spring and the second spring, the double buffering protection effect is achieved, and the labor intensity during maintenance is reduced.

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 electrosurgical cutter 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 placement and internal irradiation require EST before completing various endoscopic treatments. EST has the advantages of small surgical trauma, fast postoperative recovery and high success rate. For this reason, the application of EST has become increasingly widespread, and high-frequency cutter is a necessary instrument in EST surgery.

[0003] In the prior art, after the cutting knife is used, it is necessary to perform regular inspection and maintenance. 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. Therefore, the present invention needs to design a disposable double-stage cutting knife to solve the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to provide a disposable two-stage cutting knife to solve the problem proposed in the above background technology that the cutting 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 object, the present invention provides the following technical solution: a disposable double-stage incision knife, comprising: core rod; A connecting rod, the connecting rod is installed at one end of the core rod; A connecting assembly is installed at one end of the connecting rod away from the core rod; The first connecting sleeve is installed on the outer side of the core rod and the connecting rod, a second connecting sleeve is installed on one side of the first connecting sleeve, and an auxiliary mounting assembly is installed inside the second connecting sleeve, and the auxiliary mounting assembly includes a rotating gear and a fixed frame, the inside of the second connecting sleeve is fixedly connected to the fixed frame, one side of the fixed frame is slidably connected to a second sliding rack, the second sliding rack is rotatably connected to the rotating gear on the side away from the fixed frame, and the first sliding rack and the second sliding rack are both meshed with the rotating gear, the top of the fixed frame is slidably connected to a first slide plate, the first slide plate is fixedly connected to the side away from the fixed frame with equidistantly distributed first springs, one end of the top of the first spring is fixedly connected to the inside of the second connecting sleeve, the fixed frame is fixedly connected to the side away from the second sliding rack with equidistantly distributed second springs, the second spring is slidably connected to the side away from the fixed frame with a connecting plate, one side of the connecting plate is fixedly connected to the first connecting sleeve, and the bottom of the first slide plate is fixedly connected to a block extending to the inside of the connecting plate; The cutter assembly is installed at one end of the multi-lumen tube away from the connecting assembly.

[0006] 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, 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, equidistantly distributed cutting wires are installed on the other side of the cutter body, and equidistantly distributed conductive wires are installed below the cutting wires.

[0007] 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.

[0008] Preferably, a damping shock absorber is installed inside the first spring, a first slide plate and a first spring of the same structure are installed inside the second connecting sleeve and below the fixed frame, a top end of the first sliding rack is fixedly connected to a first connecting push rod, a top of the first connecting push rod is fixedly connected to one of the first slide plates, a bottom end of the second sliding rack is fixedly connected to a second connecting push rod, a bottom end of the second connecting push rod is fixedly connected to another first slide plate.

[0009] 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.

[0010] 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.

[0011] 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 a rotating gear, a limiting hole is provided on the outer side of the handwheel, and a limiting rod extending to the inside of the second connecting sleeve is installed inside the limiting hole.

[0012] Preferably, an installation cavity for cooperating with an auxiliary installation component is provided inside the second connecting sleeve, a control valve is fixedly connected to the outer side of the injection pipe, a liquid inlet opening extending to the inside of the injection pipe is installed on the top of the control valve, and a second gripping piece is fixedly connected to one end of the core rod away from the connecting rod, and a cavity is provided inside the second gripping piece.

[0013] Preferably, a mounting groove for cooperating with a connecting rod is provided inside the first connecting sleeve, and first holding pieces are fixedly connected to the top and bottom of the first connecting sleeve, wherein a first electrode block extending into the interior of the connecting rod is installed on one side of one of the first holding pieces.

[0014] 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.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a connection assembly, a multi-lumen tube and a cutter assembly, which are used in conjunction with the multi-lumen tube and the injection pipeline, and the required liquid is injected from the liquid inlet opening by opening the control valve, and are used in conjunction with each other, and are used in conjunction with normal cutting by installing a cutting wire, and are used in conjunction with the normal power-on operation of the first electrode block and the second electrode block by installing a fixing frame and a guide wire body, and are used in conjunction with the second gripping piece and the first gripping piece for convenient holding and portable operation during use, and are used to timely remotely manage the operation data during power-on through an external wireless signal transceiver; 2. The present invention is provided with a first connecting sleeve, a second connecting sleeve and an auxiliary installation component. When the equipment is separated for use, the cover plate is opened, the limiting plug rod with a limiting function is removed, and the hand wheel is manually turned to drive the rotating shaft to rotate, drive the rotating gear to rotate, drive the first sliding rack and the second sliding rack to move in opposite directions, drive the second connecting push rod and the first connecting push rod to move in opposite directions, squeeze the corresponding first spring, perform buffering and protection treatment through the damping shock absorber, drive the block to slide out of the connecting plate, and facilitate the removal of the first connecting sleeve as a whole, thereby performing normal separation treatment on the first connecting sleeve and the second connecting sleeve. When in use, the limiting hole and the limiting plug rod are provided to limit the whole when it is not in use and after installation is completed, so as to avoid equipment resetting. The first spring and the second spring are installed to achieve a double buffering and protection effect, thereby reducing the labor intensity during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 This is an enlarged view of the connecting component structure of the present invention; Figure 3 This is an enlarged view of the structure of the cutter assembly of the present invention; Figure 4 This is a diagram showing the internal structure of the first connecting sleeve and the second connecting sleeve of the present invention; Figure 5 It is a partial structural diagram of the first connecting sleeve and the second connecting sleeve of the present invention; Figure 6 This is an enlarged view of the auxiliary installation component structure of the present invention.

[0017] 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-hand wheel, 19-limiting hole, 20-limiting plug rod, 21-auxiliary installation 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

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] 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: Core rod 1; A connecting rod 2, the connecting rod 2 is installed at one end of the core rod 1; A connecting assembly 8, the connecting assembly 8 is installed at one 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 fixed frame 29 is fixedly connected to the inside of the second connecting sleeve 4. A second sliding rack 28 is slidably connected to one side of the fixed frame 29. A rotating gear 35 is rotatably connected to the side of the second sliding rack 28 away from the fixed frame 29. A first sliding rack 27 is slidably connected to the side of the rotating gear 35 away from the second sliding rack 28. The first sliding rack 27 and the second sliding rack 28 are rotatably connected to the rotating gear 35. The movable racks 28 are meshed and connected with the rotating gear 35, the top of the fixed frame 29 is slidably connected with the first slide plate 22, the side of the first slide plate 22 away from the fixed frame 29 is fixedly connected with the first springs 23 distributed evenly, the top ends of the first springs 23 are fixedly connected with 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 with the second springs 30 distributed evenly, the side of the second spring 30 away from the fixed frame 29 is slidably connected with the connecting plate 44, one side of the connecting plate 44 is fixedly connected with the first connecting sleeve 3, and the bottom of the first slide plate 22 is fixedly connected with the block 43 extending to the inside of the connecting plate 44; The cutter assembly 10 is installed at one end of the multi-lumen tube 9 away from the connecting assembly 8.

[0020] 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 the multi-lumen tube 9 and the injection pipe 13, and the required liquid is injected from the liquid inlet opening 15 by opening the control valve 14, and the normal cutting is coordinated by installing a cutting wire 38, and the normal power-on operation of the first electrode block 6 and the second electrode block 12 is coordinated by installing a fixing frame 29 and a guide wire body 42, and the second gripping piece 7 and the first gripping piece 5 are installed to facilitate the portable operation during use, and the operation data during power-on is timely remotely managed through an external wireless signal transceiver. When the device is separated for use, the cover 17 is opened, the limiting rod 20 with a limiting function is removed, and the handwheel 18 is manually turned to 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, so as to facilitate the removal of the first connecting sleeve 3 as a whole, thereby performing normal separation of 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 provided to limit the entirety after it is not in use and installed, so as to avoid equipment reset. The first spring 23 and the second spring 30 are installed to achieve a double buffering protection effect, thereby reducing 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 cutting knife assembly 10. The multi-lumen tube 9 is replaced normally to cooperate with the disposable effect.

[0021] 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, 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 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.

[0022] 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 .

[0023] 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 with the end cap 11, the bottom of the end cap 11 is fixedly connected with a second electrode block 12, the end of the end cap 11 away from the connecting rod 2 is fixedly connected with the injection pipe 13, and the other end of the injection pipe 13 is connected to the multi-lumen tube 9.

[0024] It can be understood that in the present invention, the multi-lumen tube 9 is connected to the liquid injection pipeline 13 for use in combination, and the required liquid is injected from the liquid inlet opening 15 by opening the control valve 14 for use in combination.

[0025] 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 plate 22 and a first spring 23 of the same structure are installed inside the second connecting sleeve 4 and below the fixed 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.

[0026] 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 and protection treatment through the damping shock absorber 24, driving the block 43 to slide out of the connecting plate 44, so as to facilitate the removal of the first connecting sleeve 3 as a whole, thereby performing normal separation treatment on the first connecting sleeve 3 and the second connecting sleeve 4. When in use, the first spring 23 and the second spring 30 are installed to achieve a double buffering and protection effect, thereby reducing the labor intensity during maintenance.

[0027] See also Figure 1 , Figure 5 and Figure 6 The present invention provides a technical solution: 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, and a second limiting slider 34 is slidably connected inside the second limiting guide rail 33, and one end of the second limiting slider 34 is fixedly connected to the first sliding rack 27.

[0028] It can be understood that, in the present invention, the movement trajectory of the first sliding rack 27 is limited by providing the second limiting guide rail 33 and the second limiting slider 34 .

[0029] See also Figure 1 , Figure 5 and Figure 6 The present invention provides a technical solution: a first limiting guide rail 31 is opened inside the fixed 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.

[0030] It can be understood that, in the present invention, the motion trajectory of the second sliding rack 28 is limited by the first limiting slider 32 and the first limiting guide rail 31 .

[0031] See also Figure 1 , Figure 5 and Figure 6 The present invention provides a technical solution: 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 a rotating gear 35, a limiting hole 19 is provided on the outer side of the hand wheel 18, and a limiting plug rod 20 extending to the inside of the second connecting sleeve 4 is installed inside the limiting hole 19.

[0032] It can be understood that in the present invention, when the device is separated for use, the cover 17 is opened, the limiting rod 20 with a limiting function is removed, and the hand wheel 18 is manually turned to drive the rotating shaft 36 to rotate, and drive the rotating gear 35 to rotate. By providing the limiting hole 19 and the limiting rod 20, the entire device is not in use and is limited after installation is completed to avoid device reset.

[0033] See also Figure 1 , Figure 2 , Figure 4 and Figure 6 The present invention provides a technical solution: 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 injection pipe 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 interior of the injection pipe 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 interior of the second gripping piece 7 is provided with a cavity.

[0034] It can be understood that in the present invention, the multi-lumen tube 9 is connected to the liquid injection pipeline 13 for use in combination, and the required liquid is injected from the liquid inlet opening 15 by opening the control valve 14 for use in combination.

[0035] See also Figure 1 , Figure 4 and Figure 5The present invention provides a technical solution: a mounting groove 16 for connecting with the connecting rod 2 is opened inside the first connecting sleeve 3, and the top and bottom of the first connecting sleeve 3 are fixedly connected with a first holding piece 5, and one side of one of the first holding pieces 5 is installed with a first electrode block 6 extending into the inside of the connecting rod 2.

[0036] It can be understood that, in the present invention, the first gripping member 5 is used in conjunction with manual portability.

[0037] 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.

[0038] 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 through 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.

[0039] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A disposable double-stage incision knife, characterized in that: 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), the first connecting sleeve (3) being mounted on the outer sides of the core rod (1) and the connecting rod (2); a second connecting sleeve (4) being mounted on one side of the first connecting sleeve (3); an auxiliary mounting assembly (21) being mounted inside the second connecting sleeve (4); the auxiliary mounting assembly (21) comprising a rotating gear (35) and a fixing frame (29); the fixing frame (29) being fixedly connected inside the second connecting sleeve (4); a second sliding rack (28) being slidably connected to one side of the fixing frame (29); a side of the second sliding rack (28) away from the fixing frame (29) being rotatably connected to a rotating gear (35); a side of the rotating gear (35) away from the second sliding rack (28) being slidably connected to a first sliding rack (27); the first sliding rack (27) and the first sliding rack (27) being rotatably connected to the second sliding rack (28); The two sliding racks (28) are meshedly connected to the rotating gear (35); the top of the fixed frame (29) is slidably connected to a first slide plate (22); a side of the first slide plate (22) away from the fixed frame (29) is fixedly connected to equidistantly distributed first springs (23); a top end of the first spring (23) is fixedly connected to the inside of the second connecting sleeve (4); a side of the fixed frame (29) away from the second sliding rack (28) is fixedly connected to equidistantly distributed second springs (30); a side of the second spring (30) away from the fixed frame (29) is slidably connected to a connecting plate (44); one side of the connecting plate (44) is fixedly connected to the first connecting sleeve (3); and a bottom of the first slide plate (22) is fixedly connected to a block (43) extending to the inside of the connecting plate (44); A cutter assembly (10) is mounted on an end of the multi-lumen tube (9) away from the connecting assembly (8).

2. The double-stage incision knife for sexual use according to claim 1, characterized in that: The cutter assembly (10) comprises 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); 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 above the guide wire body (42); the cutting wires (38) are installed at equal intervals on the other side of the cutter body (40); and conductive wires (39) are installed below the cutting wires (38) at equal intervals.

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

4. The double-stage incision knife for sexual use according to claim 1, characterized in that: A damping shock absorber (24) is installed inside each of the first springs (23); a first slide plate (22) and a first spring (23) of the same structure 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); the bottom end of the second connecting push rod (26) is fixedly connected to the other first slide plate (22).

5. The double-stage incision knife for sexual use according to claim 1, 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).

6. The double-stage incision knife for sexual use according to claim 1, characterized in that: A first limiting guide rail (31) is provided inside the fixed 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).

7. The double-stage incision knife for sexual use according to claim 1, 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 a 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).

8. The double-stage incision knife for sexual use according to claim 3, characterized in that: The second connecting sleeve (4) has an installation cavity (37) formed therein for use with the auxiliary installation assembly (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); a cavity is formed therein.

9. The double-stage incision knife for sexual use according to claim 8, 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).

10. The double-stage incision knife for sexual use according to claim 9, 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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