Traction hemostatic clip in digestive endoscope

Abstract

The invention relates to the technical field of medical instruments, and discloses a digestive endoscopy internal traction hemostatic clip which comprises a clip head, the clip head is clamped and mounted in a mounting component, the mounting component comprises a butt joint cylinder, a rubber tube and a fixing cylinder, one side of the butt joint cylinder is clamped with the clip head, and the other end of the butt joint cylinder is fixedly connected with one side of the fixing cylinder through the rubber tube; the other side of the fixed cylinder is fixedly mounted with one end of a spring hose, and the interior of the rotating part is in meshed connection with the connecting rod through a limiting mechanism, so that the angle of the butt joint cylinder can be adjusted relative to the fixed cylinder; meanwhile, the hemostatic clip is allowed to be locked at multiple angle positions through the clamping structure of the first protruding part of the inclined plate and the wave groove, a doctor can push the butt joint cylinder to rotate through external force according to the specific position of a bleeding point, such as the position perpendicular to the intestinal wall and the inclined blood vessel, and the clip head is adjusted to an ideal angle and fixed; incomplete clamping or normal tissue damage caused by angle deviation is avoided, and the hemostasis success rate is remarkably increased.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a traction hemostatic clip for digestive endoscopy. Background Art

[0002] The existing traction hemostatic clips for digestive endoscopy are mainly used to stop bleeding by clamping bleeding points during digestive endoscopy examinations or treatments, thereby helping patients stop bleeding symptoms in the digestive tract.

[0003] However, in actual use, due to the complex internal anatomical structure of the digestive tract, with irregular shapes and variable curvatures, it is difficult for existing hemostatic clips to flexibly adjust the angle and direction. The angle adjustment function of some hemostatic clips is limited, and doctors cannot accurately align them with bleeding points at different positions and in different directions, resulting in difficult hemostasis operations. Even worse, it may affect the hemostasis effect due to the inability to accurately clamp, delaying the treatment opportunity.

[0004] In addition, the rotation operation of traditional hemostatic clips is inconvenient, or it is difficult to fix them in the desired position after rotation. They are prone to deviation during the clamping process, which not only increases the operation difficulty but also may cause additional damage to patients, affecting the safety and effectiveness of the surgery. Summary of the Invention

[0005] The purpose of the present invention is to provide a technical solution to solve the problems in the prior art mentioned in the above background art.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A traction hemostatic clip for digestive endoscopy includes a clip head and an opening and closing mechanism installed in the clip head. The clip head is snap-fitted and installed in an installation component. The installation component includes a docking cylinder, a rubber tube, and a fixing cylinder. One side of the docking cylinder is snap-fitted with the clip head, and the other end of the docking cylinder is fixedly connected to one side of the fixing cylinder through a rubber tube. The other side of the fixing cylinder is fixedly installed with one end of a spring hose.

[0008] Among them, the docking cylinder is rotatably connected to the fixing cylinder through an angle adjustment mechanism;

[0009] The other end of the spring hose is fixedly installed with one end of a rotating component. The inside of the rotating component is meshed and connected with a connecting rod through a limiting mechanism.

[0010] Preferably, the angle adjustment mechanism includes an insertion plate, a fixed shaft, and an inclined plate. Both sides of the end of the docking cylinder are fixedly connected to the insertion plate. Slots are respectively opened on both sides of the end of the fixing cylinder. A first chute is penetrated through the side wall of the slot. The insertion plate is slidably connected in the first chute through the fixed shaft, and the insertion plate is slidably inserted into the slot;

[0011] The inner side wall of the docking cylinder is fixedly connected with an inclined plate, the inclined plate extends into the fixed cylinder, and the inner side wall of the fixed cylinder is provided with a wavy groove. The end of the inclined plate is provided with a first protruding part, and the first protruding part is clamped in the wavy groove.

[0012] Preferably, the rotating component includes a rotating cylinder and a limiting mechanism. The surface of the rotating cylinder is provided with anti-slip ridges, and the two side walls of the rotating cylinder are respectively provided with second sliding grooves, and the limiting mechanism is slidably connected in the second sliding grooves.

[0013] Preferably, the limiting mechanism includes a pressing block, a limiting folded edge, a linear spring, a sliding rod, a first moving plate and a gear. A limiting folded edge is arranged on one side of the pressing block, and the pressing block is slidably connected in the second sliding groove through the limiting folded edge. An installation groove is opened in the rotating cylinder, the linear spring is installed in the installation groove, and the linear spring abuts against the bottom of the pressing block. One end of the sliding rod is respectively fixedly connected to both sides of the bottom surface of the pressing block, and the other end of the sliding rod is fixedly connected to the side wall of the first moving plate. The gear is fixedly connected to the end of the first moving plate;

[0014] A limiting cover is fixedly connected to the side wall of the connecting rod, a tooth groove is opened in the inner side wall of the limiting cover, and the gear is meshed with the side wall of the tooth groove.

[0015] Preferably, the opening and closing mechanism includes two hemostatic splints, a rotating plate, a first pin, a second moving plate and a pulling mechanism. The tails of the two hemostatic splints are respectively fixedly connected to one end of the rotating plate, the inner side wall of the chuck is fixedly connected to the first pin, and first inclined grooves are respectively opened on the side walls of the two rotating plates. The first pin is slidably connected in the first inclined grooves;

[0016] The second moving plate is respectively fixedly connected to the other end of the rotating plate. A second inclined groove is opened on the side wall of the second moving plate. One end of the pulling mechanism is slidably installed in the second inclined groove. A first limiting ring is fixedly connected to the inner side wall of the chuck. A clamping head is arranged on the outer side of the end of the second moving plate. When the two hemostatic splints are closed, the clamping head is clamped with the upper surface of the first limiting ring.

[0017] Preferably, the pulling mechanism includes a second pin, a second pull rod and a clamping plate. A second pin is fixedly installed at one end of the second pull rod. The second pin is slidably installed in the second inclined groove. The other end of the second pull rod is fixedly connected to the clamping plate. The clamping plate is clamped and connected to the inside of the traction part.

[0018] Preferably, the traction part is arranged in the docking cylinder. The traction part includes a traction head, a card slot and an arc-shaped groove. A card slot is opened on the bottom surface of the traction head. The clamping plate is inserted and installed in the slot. An arc-shaped groove is opened on the inner side of the slot. A second protruding part is arranged on the side wall of the clamping plate. The second protruding part is clamped with the arc-shaped groove.

[0019] Preferably, a second limiting ring is integrally formed on the inner side wall of the docking cylinder, a limiting disk is fixedly connected to the top surface of the traction head, the top surface of the limiting disk is fixedly installed with the bottom end of the traction steel cable, and the top end of the traction steel cable is fixedly connected to the first pull rod.

[0020] Preferably, an insertion ring is integrally formed around the end of the docking cylinder, a limiting block is arranged on the side wall of the insertion ring, an annular groove is formed in a circle at the top of the chuck, the insertion ring is inserted into the annular groove, a limiting groove is formed in the inner side wall of the annular groove, and the limiting block is engaged with the limiting groove.

[0021] Preferably, index finger rings are respectively fixedly connected to the two side walls of the connecting rod, and a thumb ring is fixedly connected to the end of the first pull rod.

[0022] Technical effects and advantages of the present invention: A traction hemostatic clip inside a digestive endoscope proposed by the present invention has the following advantages compared with the prior art:

[0023] 1. In the present invention, through the sliding insertion of the insertion plate into the insertion slot and the movement of the fixed shaft in the first sliding groove, the docking cylinder can be adjusted in angle relative to the fixed cylinder; at the same time, the clamping structure of the first protruding part of the inclined plate and the wave groove allows the hemostatic clip to be locked at multiple angular positions. Doctors can, according to the specific orientation of the bleeding point, such as perpendicular to the intestinal wall, obliquely towards blood vessels, etc., push the docking cylinder to rotate by an external force, adjust the chuck to an ideal angle and fix it, avoiding incomplete clamping or damage to normal tissues caused by angular deviation, and significantly improving the hemostasis success rate.

[0024] 2. In the present invention, by pressing the pressing block to compress the linear spring, driving the gear to disengage from the tooth groove, at this time, the rotating cylinder can be freely rotated. After releasing the pressing block, the spring resets to make the gear mesh again, locking the direction of the hemostatic clip. When it is necessary to adjust the orientation of the hemostatic splint, doctors can press the limiting mechanism with one hand and rotate the rotating cylinder to accurately adjust the direction of the chuck. After locking, the chuck will not shift due to traction operation, avoiding blood vessel slippage or repeated clamping causing mucosal damage due to direction deviation, and improving the surgical safety and operation efficiency. Description of the Drawings

[0025] Figure 1 is a schematic diagram of the overall structure of a traction hemostatic clip inside a digestive endoscope of the present invention;

[0026] Figure 2 is a schematic diagram of the structure of the installation components of the present invention;

[0027] Figure 3 is a schematic diagram of the sectional structure of the installation components of the present invention;

[0028] Figure 4 is a schematic diagram of the sectional structure of the chuck of the present invention;

[0029] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at position A in the present invention;

[0030] Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure at position B in the present invention;

[0031] Figure 7 Schematic diagram of the sectional view of the rotating part of the present invention.

[0032] In the figure:

[0033] 1. Chuck; 11. First limiting ring;

[0034] 2. Installation part; 21. Docking cylinder; 22. Rubber tube; 23. Fixed cylinder; 24. Insertion plate; 25. First chute; 26. Slot; 27. Fixed shaft; 28. Inclined plate; 29. First protrusion; 210. Wavy groove; 211. Insertion ring; 212. Limiting block; 213. Second limiting ring;

[0035] 3. Spring hose;

[0036] 4. Rotating part; 41. Rotating cylinder; 42. Pressing block; 43. Second chute; 44. Limiting flange; 45. Installation groove; 46. Linear spring; 47. Slide bar; 48. First moving plate; 49. Gear; 410. Limiting cover; 411. Tooth groove;

[0037] 5. Connecting rod;

[0038] 6. Index finger ring;

[0039] 7. First pull rod;

[0040] 8. Thumb ring;

[0041] 9. Opening and closing mechanism; 91. Hemostatic splint; 92. Rotating plate; 93. First inclined groove; 94. First pin; 95. Second moving plate; 96. Second inclined groove; 97. Second pin; 98. Chuck; 99. Second pull rod; 910. Clamping plate; 911. Second protrusion;

[0042] 10. Traction steel cable;

[0043] 12. Traction part; 121. Traction head; 122. Card slot; 123. Arc groove; 124. Limiting disc;

[0044] 13. Annular groove;

[0045] 14. Limiting groove. Detailed implementation method

[0046] Reference will now be made to example embodiments to discuss the subject matter described herein. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein, and that changes may be made to the functions and arrangements of the elements discussed without departing from the scope of protection of the content of this specification. Each example may omit, substitute, or add various processes or components as needed. Additionally, the features described in some examples may be combined in other examples.

[0047] The invention provides as Figures 1 to 7 shown, as Figure 1 shown, a traction hemostatic clip for a digestive endoscope, comprising a clip head 1 and an opening and closing mechanism 9 installed in the clip head 1, as Figure 4 shown, the opening and closing mechanism 9 includes two hemostatic splints 91, a rotating plate 92, a first pin 94, a second moving plate 95 and a pulling mechanism. The tails of the two hemostatic splints 91 are respectively fixedly connected to one end of the rotating plate 92. The inner side wall of the clip head 1 is fixedly connected to the first pin 94. First inclined slots 93 are respectively formed on the side walls of the two rotating plates 92, and the first pin 94 is slidably connected in the first inclined slots 93;

[0048] The second moving plate 95 is respectively fixedly connected to the other end of the rotating plate 92. A second inclined slot 96 is formed on the side wall of the second moving plate 95. One end of the pulling mechanism is slidably installed in the second inclined slot 96. A first limiting ring 11 is fixedly connected to the inner side wall of the clip head 1. A clamping head 98 is arranged outside the end of the second moving plate 95. When the two hemostatic splints 91 are closed, the clamping head 98 is clamped with the upper surface of the first limiting ring 11.

[0049] The pulling mechanism includes a second pin 97, a second pull rod 99 and a clamping plate 910. A second pin 97 is fixedly installed at one end of the second pull rod 99. The second pin 97 is slidably installed in the second inclined slot 96. The other end of the second pull rod 99 is fixedly connected to the clamping plate 910. The clamping plate 910 is clamped and connected to the inside of the traction part 12.

[0050] When the pulling mechanism is in the initial state, the two hemostatic splints 91 are in an open state. This state facilitates the smooth arrival of the instrument at the bleeding site. When the second pull rod 99 is pulled, the second pin 97 will slide within the second inclined slot 96. Since the second inclined slot 96 is inclined, this sliding process will cause the second moving plate 95 to move towards the inside of the chuck 1. The movement of the second moving plate 95 will drive the rotating plate 92 to rotate around the first pin 94. During this rotation process, the first pin 94 will slide within the first inclined slot 93. As the rotating plate 92 rotates, the two hemostatic splints 91 gradually close, thereby achieving clamping hemostasis at the bleeding point. When the two hemostatic splints 91 are completely closed, the chuck 98 will be engaged with the first limiting ring 11, which can prevent the splints from accidentally loosening and ensure the stability of the hemostatic effect.

[0051] As Figure 5 shown, the traction part 12 is arranged in the docking cylinder 21. The traction part 12 includes a traction head 121, a clamping groove 122 and an arc groove 123. The bottom surface of the traction head 121 is provided with the clamping groove 122. The clamping plate 910 is inserted and installed in the slot 26. The inner side of the slot 26 is provided with the arc groove 123. The side wall of the clamping plate 910 is provided with a second protruding part 911, and the second protruding part 911 is engaged with the arc groove 123.

[0052] After the clamping plate 910 is inserted into the clamping groove 122, the second protruding part 911 can be engaged into the arc groove 123 to form a stable engagement structure, ensuring that the pulling mechanism can stably transmit the pulling force. At the same time, when it is necessary to disconnect, only by pulling the traction head 121 excessively can the second protruding part 911 be disengaged from the arc groove 123, and then the clamping plate 910 can be easily pulled out to separate the chuck 98 from the docking cylinder 21.

[0053] A second limiting ring 213 is integrally formed on the inner side wall of the docking cylinder 21. The top surface of the traction head 121 is fixedly connected with a limiting disc 124. The top surface of the limiting disc 124 is fixedly installed with the bottom end of the traction steel cable 10. The top end of the traction steel cable 10 is fixedly connected with the first pull rod 7. Index finger rings 6 are respectively fixedly connected to the two side walls of the connecting rod 5. The end of the first pull rod 7 is fixedly connected with a thumb ring 8.

[0054] As Figure 2As shown, the chuck 1 is snap-fitted and installed in the mounting component 2. The mounting component 2 includes a docking cylinder 21, a rubber tube 22, and a fixing cylinder 23. One side of the docking cylinder 21 is snap-fitted with the chuck 1. The other end of the docking cylinder 21 is fixedly connected to one side of the fixing cylinder 23 through the rubber tube 22. The other side of the fixing cylinder 23 is fixedly installed with one end of the spring hose 3. A plug ring 211 is integrally formed around the end of the docking cylinder 21. A limiting block 212 is provided on the side wall of the plug ring 211. An annular groove 13 is formed around the top of the chuck 1. The plug ring 211 is inserted into the annular groove 13. A limiting groove 14 is formed on the inner side wall of the annular groove 13. The limiting block 212 is engaged with the limiting groove 14. After the plug ring 211 is inserted into the annular groove 13, the limiting block 212 is snapped into the limiting groove 14. This snap-fitting structure can effectively prevent relative rotation or detachment between the docking cylinder 21 and the chuck 1.

[0055] Among them, as Figure 3 shown, the docking cylinder 21 is rotatably connected to the fixing cylinder 23 through an angle adjustment mechanism. The angle adjustment mechanism can enable the hemostatic clip to flexibly adjust the angle inside the digestive endoscope. The angle adjustment mechanism includes a plug board 24, a fixing shaft 27, and an inclined board 28. Both sides of the end of the docking cylinder 21 are fixedly connected to the plug board 24. Slots 26 are respectively formed on both sides of the end of the fixing cylinder 23. A first sliding groove 25 is formed through the side wall of the slot 26. The plug board 24 is slidably connected in the first sliding groove 25 through the fixing shaft 27. The plug board 24 is slidably inserted into the slot 26. An inclined board 28 is fixedly connected to the inner side wall of the docking cylinder 21. The inclined board 28 extends into the fixing cylinder 23. A wave groove 210 is formed on the inner side wall of the fixing cylinder 23. A first protrusion 29 is provided at the end of the inclined board 28. The first protrusion 29 is snap-fitted in the wave groove 210.

[0056] After the plug board 24 is pulled out of the slot 26, the fixing shaft 27 can slide in the first sliding groove 25, which enables the docking cylinder 21 to move within a certain range relative to the fixing cylinder 23. The first protrusion 29 on the inclined board 28 is stuck in the wave groove 210. The design of the wave groove 210 enables the docking cylinder 21 to be snap-fitted and fixed at multiple angular positions. When the angle needs to be adjusted, a certain external force is applied to overcome the friction between the first protrusion 29 and the wave groove 210, and the docking cylinder 21 can be rotated to a new angle and fixed again. When the angle does not need to be adjusted, the plug board 24 is inserted into the slot 26 to fix the docking cylinder 21 and the fixing cylinder 23, so that the free switching between the need to adjust the angle and the need not to adjust the angle can be realized. The multi-angle adjustment function enables the hemostatic clip to better adapt to the complex anatomical structure inside the digestive endoscope and facilitates accurately clamping bleeding points at different positions.

[0057] As Figure 7As shown, the other end of the spring hose 3 is fixedly installed with one end of the rotating member 4. The inside of the rotating member 4 is meshed and connected with the connecting rod 5 through a limiting mechanism. The rotating member 4 includes a rotating cylinder 41. The surface of the rotating cylinder 41 is provided with anti-slip ridges. Second sliding grooves 43 are respectively formed on both side walls of the rotating cylinder 41. The limiting mechanism is slidably connected in the second sliding grooves 43. The limiting mechanism includes a pressing block 42, a limiting flange 44, a linear spring 46, a sliding rod 47, a first moving plate 48 and a gear 49. A limiting flange 44 is arranged on one side of the pressing block 42. The pressing block 42 is slidably connected in the second sliding grooves 43 through the limiting flange 44. An installation groove 45 is formed inside the rotating cylinder 41. The linear spring 46 is installed in the installation groove 45 and abuts against the bottom of the pressing block 42. One end of the sliding rod 47 is fixedly connected to both sides of the bottom surface of the pressing block 42 respectively. The other ends of the sliding rods 47 are fixedly connected to the side wall of the first moving plate 48. The gear 49 is fixedly connected to the end of the first moving plate 48;

[0058] A limiting cover 410 is fixedly connected to the side wall of the connecting rod 5. A tooth groove 411 is formed on the inner side wall of the limiting cover 410. The gear 49 is meshed and connected with the side wall of the tooth groove 411.

[0059] When the pressing block 42 is pressed, the linear spring 46 will be compressed, driving the sliding rod 47 and the first moving plate 48 to move, and then making the gear 49 disengage from the tooth groove 411. In this state, the rotating cylinder 41 can be freely rotated, thereby driving the entire hemostatic clip to rotate, facilitating the adjustment of the direction of the hemostatic clip. When the pressing block 42 is released, the linear spring 46 will return to its original state, pushing the gear 49 to re-engage with the tooth groove 411, locking the rotating cylinder 41 at the current rotation position, and ensuring that the direction of the hemostatic clip remains stable during the clamping operation.

[0060] The embodiments of the present invention have been described above, but the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of the present invention.

Claims

1. A digestive endoscope internal traction hemostatic clip, characterized in that, It includes a chuck (1) and a clamping and opening mechanism (9) installed in the chuck (1). The chuck (1) is snap-fitted and installed in an installation component (2). The installation component (2) includes a docking cylinder (21), a rubber tube (22), and a fixing cylinder (23). One side of the docking cylinder (21) is snap-fitted with the chuck (1), and the other end of the docking cylinder (21) is fixedly connected to one side of the fixing cylinder (23) through the rubber tube (22). The other side of the fixing cylinder (23) is fixedly installed with one end of a spring hose (3). Among them, the docking cylinder (21) is rotatably connected to the fixing cylinder (23) through an angle adjustment mechanism. The other end of the spring hose (3) is fixedly installed with one end of a rotating component (4). The inside of the rotating component (4) is meshed and connected to a connecting rod (5) through a limiting mechanism.

2. The endoscopic traction hemostatic clip according to claim 1, wherein, The angle adjustment mechanism includes an insertion plate (24), a fixed shaft (27), and an inclined plate (28). Both sides of the end of the docking cylinder (21) are fixedly connected to the insertion plate (24). Slots (26) are respectively opened on both sides of the end of the fixing cylinder (23). A first sliding groove (25) is penetratingly opened on the side wall of the slot (26). The insertion plate (24) is slidably connected in the first sliding groove (25) through the fixed shaft (27). The insertion plate (24) is slidably inserted into the slot (26). An inclined plate (28) is fixedly connected to the inner side wall of the docking cylinder (21). The inclined plate (28) extends into the fixing cylinder (23). A wavy groove (210) is opened on the inner side wall of the fixing cylinder (23). A first protruding portion (29) is provided at the end of the inclined plate (28). The first protruding portion (29) is snap-fitted in the wavy groove (210).

3. A digestive endoscope internal traction hemostatic clip according to claim 1, characterized in that, The rotating component (4) includes a rotating cylinder (41) and a limiting mechanism. Anti-slip ridges are provided on the surface of the rotating cylinder (41). Second sliding grooves (43) are respectively opened on both side walls of the rotating cylinder (41). The limiting mechanism is slidably connected in the second sliding grooves (43).

4. The endoscopic traction hemostatic clip according to claim 3, wherein The limiting mechanism includes a pressing block (42), a limiting flange (44), a linear spring (46), a sliding rod (47), a first moving plate (48), and a gear (49). A limiting flange (44) is provided on one side of the pressing block (42). The pressing block (42) is slidably connected in the second sliding groove (43) through the limiting flange (44). An installation groove (45) is opened inside the rotating cylinder (41). The linear spring (46) is installed in the installation groove (45), and the linear spring (46) abuts against the bottom of the pressing block (42). One end of the sliding rod (47) is respectively fixedly connected to both sides of the bottom surface of the pressing block (42). The other end of the sliding rod (47) is fixedly connected to the side wall of the first moving plate (48). The gear (49) is fixedly connected to the end of the first moving plate (48). A limiting cover (410) is fixedly connected to the side wall of the connecting rod (5). A tooth groove (411) is opened on the inner side wall of the limiting cover (410). The gear (49) is meshed with the side wall of the tooth groove (411).

5. A digestive endoscope internal traction hemostatic clip according to claim 1, characterized in that: The opening and closing mechanism (9) includes two hemostatic splints (91), a rotating plate (92), a first pin (94), a second moving plate (95) and a pulling mechanism. The tails of the two hemostatic splints (91) are respectively fixedly connected to one end of the rotating plate (92). The inner side wall of the chuck (1) is fixedly connected to the first pin (94). First inclined slots (93) are respectively formed on the side walls of the two rotating plates (92), and the first pin (94) is slidably connected in the first inclined slots (93). The second moving plate (95) is respectively fixedly connected to the other end of the rotating plate (92). A second inclined slot (96) is formed on the side wall of the second moving plate (95). One end of the pulling mechanism is slidably installed in the second inclined slot (96). A first limiting ring (11) is fixedly connected to the inner side wall of the chuck (1). A clamping head (98) is arranged on the outer side of the end of the second moving plate (95). When the two hemostatic splints (91) are closed, the clamping head (98) is clamped with the upper surface of the first limiting ring (11).

6. The endoscopic traction hemostatic clip according to claim 5, wherein The pulling mechanism includes a second pin (97), a second pull rod (99) and a clamping plate (910). A second pin (97) is fixedly installed at one end of the second pull rod (99). The second pin (97) is slidably installed in the second inclined slot (96). The other end of the second pull rod (99) is fixedly connected to the clamping plate (910). The clamping plate (910) is clamped and connected to the inside of the traction part (12).

7. The endoscopic traction hemostatic clip according to claim 6, wherein The traction part (12) is arranged in the docking cylinder (21). The traction part (12) includes a traction head (121), a card slot (122) and an arc-shaped slot (123). A card slot (122) is formed on the bottom surface of the traction head (121). The clamping plate (910) is inserted and installed in the slot (26). An arc-shaped slot (123) is formed on the inner side of the slot (26). A second protruding part (911) is arranged on the side wall of the clamping plate (910), and the second protruding part (911) is clamped with the arc-shaped slot (123).

8. A digestive endoscope internal traction hemostatic clip according to claim 7, characterized in that, A second limiting ring (213) is integrally formed on the inner side wall of the docking cylinder (21). A limiting disc (124) is fixedly connected to the top surface of the traction head (121). The bottom end of the traction steel cable (10) is fixedly installed on the top surface of the limiting disc (124). The top end of the traction steel cable (10) is fixedly connected to the first pull rod (7).

9. The endoscopic traction hemostatic clip according to claim 1, wherein An insertion ring (211) is integrally formed around the end of the docking cylinder (21). A limiting block (212) is arranged on the side wall of the insertion ring (211). An annular groove (13) is formed around the top of the chuck (1). The insertion ring (211) is inserted into the annular groove (13). A limiting groove (14) is formed on the inner side wall of the annular groove (13), and the limiting block (212) is clamped with the limiting groove (14).

10. A digestive endoscope internal traction hemostatic clip according to claim 8, characterized in that, Index finger rings (6) are respectively fixedly connected to the two side walls of the connecting rod (5). A thumb ring (8) is fixedly connected to the end of the first pull rod (7).

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