Traction hemostatic clip in digestive endoscope
By designing an endoscopic traction hemostatic clip, combined with gradient blocks, tooth occlusion, and a release hook, the problems of easy loosening and the need for additional instruments in traditional hemostatic clips are solved, achieving efficient hemostasis and no foreign body residue.
Patent Information
- Application Number
- CN202511311862.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2025-11-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional metal hemostatic clips are prone to loosening when placed in areas of mucosal edema, erosion, or fragile tissue. They can become embedded and irritate the tissue as a long-term foreign body. Furthermore, the lack of a traction structure requires additional instruments, increasing the risk of injury.
The design incorporates a traction hemostasis clip for digestive endoscopy, including a guidewire, clip seat, hemostasis clip head, drive column, locking hook, and control mechanism. It achieves integrated traction and hemostasis through gradient block clamping, tooth-like engagement, and locking hook. The locking hook is made of biodegradable material.
It enables a complete procedure without changing instruments, shortens the operation time, ensures hemostasis until tissue healing, and the degradable locking hooks prevent foreign body residue and reduce the risk of chronic inflammation.
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Figure CN120899326A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical devices, in particular to a traction hemostatic clip in a digestive endoscope. BACKGROUND
[0002] In the clinical diagnosis and treatment of digestive system diseases, digestive endoscopy technology has become the core means for the diagnosis and treatment of digestive tract bleeding, ulcers, polyps and other diseases due to its minimally invasive and precise advantages. Among them, as a common emergency in digestive medicine, if the digestive tract bleeding cannot be stopped in time, it may cause severe complications such as hemorrhagic shock and multiple organ failure, and even endanger the patient's life. At present, the endoscopic hemostasis methods for digestive tract bleeding mainly include drug injection, thermal coagulation, and hemostatic clip closure. Among them, the hemostatic clip closure technology is widely used in the treatment of non-varicose vein bleeding because of its simple operation, accurate hemostasis effect and less damage to the tissue.
[0003] When the bleeding lesion is located in the mucosal edema or erosion area, or the tissue around the lesion is fragile, the clamping end of the traditional metal clip lacks a anti-falling design, and it is easy to fall off quickly after clamping due to the sliding of the tissue surface or the local tissue damage. If the locking mechanism fails or is operated incorrectly, it will be embedded in the mucosa of the digestive tract as a long-term foreign body, and the edge of the metal clip may continuously stimulate the surrounding tissue, causing chronic inflammation, local mucosal hyperemia and edema, and even forming a mucosal ulcer. Moreover, the traditional hemostatic clip only integrates a clamping and occlusion module without any traction structure design. If clinical traction is needed, an endoscopic biopsy forceps or a special traction hook needs to be used, which not only increases the number of instrument changes, but also may cause accidental tissue damage due to the coordinated operation of multiple instruments, reducing the use effect of this structure. Therefore, we propose a traction hemostatic clip in a digestive endoscope to solve the above problems. SUMMARY
[0004] In view of the deficiencies of the prior art, the present application provides a traction hemostatic clip in a digestive endoscope, which solves the problem that the traditional metal clip lacks an anti-falling design at the clamping end, which easily falls off in the mucosal edema, erosion or fragile tissue; the problem that the locking mechanism fails or is operated incorrectly, which causes the embedded body to become a long-term foreign body in the body, stimulating the tissue to cause chronic inflammation, mucosal hyperemia and edema, and even ulceration; and the problem that the traditional hemostatic clip lacks a traction structure, which requires the use of an endoscopic biopsy forceps or a traction hook, increasing the number of instrument changes and easily causing accidental tissue damage and reducing the use effect.
[0005] To achieve the above purpose, the present application realizes the following technical scheme: a traction hemostatic clip in a digestive endoscope, comprising a guide wire tube;
[0006] A clip seat sleeve is arranged at one end of the guide wire tube, and a carding mechanism is arranged between the guide wire tube and the clip seat sleeve;
[0007] Two groups of hemostatic chuck heads are hinged to the chuck seat cover through a hinge shaft, the head end of the hemostatic chuck head is provided with a gradient block, and the rear end is provided with a tooth, and the tooth is flush with the gradient block;
[0008] A driving column is arranged in the chuck seat cover, and two groups of connecting rods are rotatably arranged on both sides of one end of the driving column through a rotating shaft, and the other ends of the two groups of connecting rods are hingedly connected to one end of the hemostatic chuck head;
[0009] Two groups of lock hooks are arranged on the sides of the two groups of hemostatic chuck heads close to each other, and when the two groups of hemostatic chuck heads are closed, the two groups of lock hooks are locked by being buckled with each other, and the lock hook is made of degradable material;
[0010] A traction wire is arranged in the guide wire tube;
[0011] A handle rod is fixedly installed at one end of the guide wire tube;
[0012] A control mechanism is arranged on the handle rod;
[0013] The other end of the traction wire is connected with the control mechanism, and the two groups of hemostatic chuck heads can be flexibly controlled in traction occlusion and hemostatic locking occlusion through the control mechanism.
[0014] Preferably, the degradable material of the lock hook is composed of a copolymer of polycaprolactone and polyglycolic acid.
[0015] Preferably, the card and release mechanism includes a metal rod fixedly arranged in a symmetrical arrangement through a supporting block, the other end of the metal rod is fixedly installed with a lock ball head, the surface of the lock ball head is fixedly provided with a connecting rope, the other end of the connecting rope is fixedly connected with the supporting block, the surface of the driving column is fixedly installed with a pushing rod corresponding to the connecting rope, and the inner side wall of the guide wire tube is provided with a lock groove matched with the lock ball head.
[0016] Preferably, the metal rod is made of nickel-titanium alloy material.
[0017] Preferably, the metal rod and the connecting rope are designed as an inclined mechanism, when the pushing rod extrudes the connecting rope, the metal rod is bent and deformed to drive the lock ball head to be separated from the lock groove of the guide wire tube, and the locking of the guide wire tube and the chuck seat cover is released.
[0018] Preferably, the control mechanism includes a pull ring seat sliding on the handle rod, a telescopic rod is fixedly arranged between the pull ring seat and the handle rod, a first spring is arranged on the surface of the telescopic rod, and the end of the traction wire away from the driving column is fixedly connected with the pull ring seat.
[0019] Preferably, a limiting sliding opening is formed in the handle rod and matched with the pull ring seat, the pull ring seat can slide in the limiting sliding opening of the handle rod, and two ends of the first spring are fixedly connected with the pull ring seat and the handle rod respectively.
[0020] Preferably, the control mechanism further comprises a rectangular groove formed in the pull ring seat, a connecting plate in a concave structure is fixedly installed in the rectangular groove, a connecting shaft is fixedly installed in the connecting plate, a driving piece is rotatably installed on the surface of the connecting shaft through a bearing, a reset torsion spring is arranged on the surface of the connecting shaft, two ends of the reset torsion spring are fixedly connected with the driving piece and the connecting plate respectively, and a positioning guide column is fixed to one end of the driving piece.
[0021] Preferably, a jacking rod is slidingly installed on the pull ring seat, the jacking rod corresponds to the driving piece in an inclined state, a fixed baffle is fixedly installed on the surface of the jacking rod, a second spring is arranged on the surface of the jacking rod, two ends of the second spring are fixedly connected with the fixed baffle and the pull ring seat respectively, and a button seat is fixed to one end of the jacking rod away from the driving piece.
[0022] Preferably, a moving groove matched with the jacking rod is formed in the pull ring seat, a sliding groove matched with the button seat is formed in the pull ring seat, and the jacking rod and the button seat slide through the moving groove and the sliding groove respectively.
[0023] Beneficial effects
[0024] The present application provides a digestive endoscope internal traction hemostatic clamp. Compared with the prior art, the present application has the following beneficial effects:
[0025] This endoscopic traction hemostatic clip, through its gradient block and tooth-like functional zones combined with a dual-mode control mechanism, allows for the entire procedure to be completed without changing any instruments. First, the gradient block clamps the tissue, pulling the guidewire to achieve lesion traction. Once traction is in place, simply pressing the button releases the travel limit, switching to hemostasis mode. Hemostasis is achieved through tooth-like occlusion and locking hooks, significantly shortening surgical time and reducing operational complexity. Simultaneously, the mechanical locking of two sets of hooks further prevents the clip from opening spontaneously, ensuring sustained pressure on the bleeding point until tissue healing, completely solving the problem of traditional metal clips failing to provide adequate support. To eliminate the hidden dangers of "unstable gripping and hemostasis failure," the locking hook is made of a copolymer of polycaprolactone and polyglycolic acid. Its degradation cycle is adapted to the healing cycle of digestive tract tissue. During the hemostasis stage, the locking hook ensures the stable clamping of the hemostatic clamp through mechanical fastening. After the tissue heals and the hemostasis task is completed, the locking hook gradually degrades. The degradation products can be safely metabolized and absorbed by the human body without toxic residues. After the locking hook degrades, the locking state of the hemostatic clamp is automatically released, and the clamp detaches from the healed tissue under the action of digestive tract peristalsis and is excreted with feces. No secondary surgery is required to remove it, completely avoiding complications such as chronic inflammation and mucosal ulcers caused by long-term metal foreign body residue. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0027] Figure 2 This is a cross-sectional view of the clamp sleeve structure of the present invention;
[0028] Figure 3 For the present invention Figure 2 A magnified structural diagram at point A;
[0029] Figure 4 This is a partial cross-sectional view of the overall structure of the present invention;
[0030] Figure 5 This is a partial cross-sectional view of the grip bar structure of the present invention;
[0031] Figure 6 For the present invention Figure 5 A magnified structural diagram at point B.
[0032] In the figure: 101, guide wire tube; 102, hemostatic clip head; 103, clip seat cover; 104, drive column; 105, connecting rod; 106, lock catch hook; 107, traction wire; 108, handlebar; 109, break contact; 2, carding mechanism; 201, metal rod; 202, lock ball head; 203, connecting rope; 204, actuating lever; 3, control mechanism; 301, pull ring seat; 302, telescopic rod; 303, limit sliding mouth; 304, first spring; 305, connecting plate; 306, actuating piece; 307, reset torsional spring; 308, second spring; 309, jacking rod; 310, fixed stop disc; 311, positioning guide column; 312, guide groove; 313, button seat. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0034] As shown in the figure: Figures 1-6
[0035] The digestive endoscope internal traction hemostatic clip comprises a guide wire tube 101;
[0036] A clip seat cover 103 is arranged at one end of the guide wire tube 101, and a carding mechanism 2 is arranged between the guide wire tube 101 and the clip seat cover 103. The carding mechanism 2 comprises metal rods 201 which are symmetrically arranged and fixed through a support block. The other end of each metal rod 201 is fixedly installed with a lock ball head 202. The surface of the lock ball head 202 is fixedly provided with a connecting rope 203. The other end of the connecting rope 203 is fixedly connected with the support block. A actuating lever 204 corresponding to the connecting rope 203 is fixedly installed on the surface of a drive column 104. A lock groove corresponding to the lock ball head 202 is arranged in the inner side wall of the guide wire tube 101. The metal rods 201 are made of nickel-titanium alloy material. The metal rods 201 and the connecting rope 203 are designed as inclined mechanisms. When the actuating lever 204 extrudes the connecting rope 203, the metal rods 201 are bent and deformed, the lock ball head 202 is driven to be separated from the lock groove arranged in the guide wire tube 101, and the locking of the guide wire tube 101 and the clip seat cover 103 is released.
[0037] Two groups of hemostatic clip heads 102 are hingedly connected to the clip seat cover 103 through hinged shafts. The head end of each hemostatic clip head 102 is provided with a gradient block, and the rear end is provided with a tooth. The tooth is flush with the gradient block.
[0038] The drive column 104 is arranged in the clip seat cover 103. Two connecting rods 105 are rotatably arranged at the two sides of one end of the drive column 104 through rotating shafts. The other ends of the two groups of connecting rods 105 are hingedly connected with one end of the hemostatic clip head 102.
[0039] Two groups of locking hooks 106 are arranged on the sides of the two groups of hemostatic clamp heads 102 close to each other, and the two groups of locking hooks 106 are locked by being buckled to each other when the two groups of hemostatic clamp heads 102 are closed. The locking hooks 106 are made of degradable material, and the degradable material of the locking hooks 106 is composed of a copolymer of polycaprolactone and polyglycolic acid.
[0040] The traction wire 107 is arranged in the guide wire tube 101.
[0041] The handle rod 108 is fixedly installed at one end of the guide wire tube 101.
[0042] The control mechanism 3 is arranged on the handle rod 108, and the control mechanism 3 includes a pull ring seat 301 sliding on the handle rod 108. The pull ring seat 301 and the handle rod 108 are fixedly connected with an extension rod 302. The surface of the extension rod 302 is provided with a first spring 304. One end of the traction wire 107 away from the driving column 104 is fixedly connected with the pull ring seat 301. The handle rod 108 is provided with a limiting sliding hole 303 matched with the pull ring seat 301. The pull ring seat 301 can slide in the limiting sliding hole 303 of the handle rod 108. The two ends of the first spring 304 are fixedly connected with the pull ring seat 301 and the handle rod 108, respectively. The control mechanism 3 further includes a rectangular groove arranged on the pull ring seat 301. The pull ring seat 301 is fixedly installed with a connecting plate 305 in a concave structure in the rectangular groove. The connecting plate 305 is fixedly installed with a connecting shaft in the concave groove. The surface of the connecting shaft is rotatably installed with a pushing piece 306 through a bearing. The surface of the connecting shaft is provided with a reset torsional spring 307. The two ends of the reset torsional spring 307 are fixedly connected with the pushing piece 306 and the connecting plate 305, respectively. One end of the pushing piece 306 is fixedly provided with a positioning guide column 311. The inner wall of the handle rod 108 is provided with a guide groove 312 matched with the positioning guide column 311. The pull ring seat 301 is slidingly installed with a top rod 309. The top rod 309 corresponds to the pushing piece 306 in an inclined state. The surface of the top rod 309 is fixedly installed with a fixed stop disc 310. The surface of the top rod 309 is provided with a second spring 308. The two ends of the second spring 308 are fixedly connected with the fixed stop disc 310 and the pull ring seat 301, respectively. One end of the top rod 309 away from the pushing piece 306 is fixedly provided with a button seat 313. The pull ring seat 301 is provided with a moving groove matched with the top rod 309. The pull ring seat 301 is provided with a sliding groove matched with the button seat 313. The top rod 309 and the button seat 313 slide through the moving groove and the sliding groove, respectively.
[0043] One end of the traction wire 107 is connected with the driving column 104 through a break contact 109, and the other end is connected with the control mechanism 3. The two groups of hemostatic clamp heads 102 can be flexibly controlled in traction occlusion and hemostatic locking occlusion modes through the control mechanism 3.
[0044] In this embodiment: the digestive endoscope traction hemostatic clamp, in use, confirms the state of each component of the device, ensures that the guide wire tube 101 and the clamp seat cover 103 are stably locked through the card-off mechanism 2, the hemostatic clamp head 102 is in the initial closed state, and the traction wire 107 is reliably connected to the break contact 109 of the drive column 104 and the pull ring seat 301 of the control mechanism 3 at both ends;
[0045] The medical staff holds the handle rod 108 and slowly pushes the end of the guide wire tube 101 away from the clamp seat cover 103 along the working channel of the digestive endoscope until the clamp seat cover 103 and the two groups of hemostatic clamp heads 102 reach the vicinity of the bleeding lesion in the digestive tract, and the relative position of the hemostatic clamp head 102 and the lesion is confirmed through the endoscopic view to adjust to the optimal operating angle;
[0046] The medical staff pushes the pull ring seat 301 towards the handle rod 108, the pull ring seat 301 slides along the limiting sliding port 303, and at the same time, the first spring 304 on the surface of the telescopic rod 302 is compressed. The pull ring seat 301 drives the traction wire 107 to push forward in the guide wire tube 101, the traction wire 107 drives the drive column 104 to move in the clamp seat cover 103 towards the hemostatic clamp head 102, the drive column 104 drives the connecting rod 105 to unfold through the two sides of the rotating shaft, the other end of the connecting rod 105 drives the hemostatic clamp head 102 to rotate around the hinge shaft on the clamp seat cover 103, and the two groups of hemostatic clamp heads 102 are synchronously opened until the opening degree adapts to the size of the tissue around the lesion;
[0047] As shown in Figure 5 and 6 : adjust the position of the hemostatic clamp head 102 so that the gradient blocks of the two groups of hemostatic clamp heads 102 are aligned with the tissue to be pulled, slowly release the pull ring seat 301, the first spring 304 releases the elastic potential energy, pulls the pull ring seat 301 to slide reversely along the limiting sliding port 303, the traction wire 107 is pulled, the drive column 104 is driven to move away from the hemostatic clamp head 102, the drive column 104 drives the hemostatic clamp head 102 to close through the connecting rod 105, and the gradient blocks cooperatively clamp the tissue. At this time, the positioning guide column 311 of the actuating piece 306 in the control mechanism 3 slides along the guide groove 312 on the inner side wall of the handle rod 108, and the hemostatic clamp head 102 clamps the tissue but the two groups of locking hooks 106 do not contact, and the actuating rod 204 on the surface of the drive column 104 does not extrude the connecting rope 203 of the card-off mechanism 2. The medical staff pulls the guide wire tube 101 as a whole through the handle rod 108, and realizes the traction of the lesion by the clamping force of the hemostatic clamp head 102 on the tissue, such as adjusting the position of the bleeding point and exposing the deep wound surface. During the traction process, because the locking hooks 106 are not locked, the opening degree of the clamp can be adjusted according to the needs;
[0048] After traction is completed, the bleeding point needs to be permanently hemostatic, the medical staff presses the button seat 313 of the control mechanism 3, the button seat 313 drives the ejector rod 309 to slide along the moving groove of the pull ring seat 301, the ejector rod 309 extrudes the actuating sheet 306 in an inclined state, the actuating sheet 306 rotates around the connecting shaft of the connecting plate 305, the compression return torsion spring 307 is compressed, and the positioning guide column 311 at one end is separated from the guide groove 312, the stroke limit of the pull ring seat 301 is released, the pull ring seat 301 is continuously pulled, the traction wire 107 is further tightened, the driving column 104 continues to move away from the hemostatic clamp head 102, the connecting rod 105 pulls the hemostatic clamp head 102 to close, and the teeth of the hemostatic clamp head 102 are misaligned and engaged, the two groups of locking hooks 106 are locked with each other, at this time, the hemostatic clamp head 102 is tightly clamped on the bleeding point, the blood flow is blocked through physical compression, and hemostasis is realized;
[0049] As shown in Figure 2 and 3 : when the hemostatic clamp head 102 is completely closed, the driving column 104 moves to the limit position, the actuating rod 204 on the surface thereof extrudes the connecting rope 203 of the carding mechanism 2, the connecting rope 203 pulls the metal rod 201 after being stressed, the metal rod 201 is made of nickel-titanium alloy material and has good bending deformation capacity, the metal rod 201 is bent in an inclined direction, drives the locking ball head 202 at one end to be separated from the locking groove in the inner wall of the guide wire tube 101, releases the locking of the guide wire tube 101 and the clamp seat sleeve 103, continues to pull the pull ring seat 301, the tension that the break contact 109 connected with the driving column 104 of the traction wire 107 bears reaches a preset critical point, the break contact 109 is broken, the traction wire 107 is separated from the driving column 104, the medical staff pulls the guide wire tube 101 and the broken traction wire 107 through the handle rod 108, and exits the body along the endoscope channel, and the instrument main body is recycled; the clamp seat sleeve 103, the hemostatic clamp head 102 and the driving column 104 and other components are unlocked from the guide wire tube 101, remain in the body and continuously clamp and hemostatic the bleeding point, the locking hooks 106 remaining in the body are made of a copolymer of polycaprolactone and polyglycolic acid, gradually degrade after a preset time in the body, and the degradation products can be metabolized and absorbed by the human body, without the need for secondary surgery for removal; after the locking hooks 106 are degraded, the locking state of the two groups of hemostatic clamp heads 102 is released, the clamp heads are gradually separated from the healed tissue in the process of digestive tract peristalsis and tissue repair, are discharged out of the body with feces, and long-term foreign body stimulation is avoided;
[0050] The gradient block and the teeth are functionally divided, and the double-mode switching of the control mechanism 3 is combined, so that the whole process operation can be completed without replacing any instrument. First, the tissue is clamped by the gradient block, and the guide wire tube 101 is pulled to realize lesion traction; after traction, only the button seat 313 is pressed to release the travel limit, and the hemostasis mode can be switched to, and hemostasis is completed by tooth occlusion and locking hook 106 locking, which greatly shortens the operation time and reduces the operation complexity. At the same time, the mechanical locking of the two groups of locking hooks 106 further eliminates the self-opening of the clamp, ensures the compression effect on the bleeding point to continue until the tissue heals, completely solves the hidden danger of the traditional metal clamp "clamping but not firm, hemostasis failure", and the locking hook 106 is made of a copolymer of polycaprolactone and polyglycolic acid, which is adapted to the healing period of the digestive tract tissue. During the hemostasis stage, the locking hook 106 ensures the stable clamping of the hemostatic clamp 102 through mechanical buckling; after the tissue heals and the hemostasis task is completed, the locking hook 106 gradually degrades, and the degradation product can be safely metabolized and absorbed by the human body without toxicity. After the degradation of the locking hook 106, the locking state of the hemostatic clamp 102 is automatically released, the clamp is separated from the healed tissue under the action of the digestive tract peristalsis, and is discharged out of the body with feces, without the need for secondary surgery to remove it. Chronic inflammation, mucosal ulcer and other complications caused by long-term retention of metal foreign bodies are completely avoided.
[0051] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A traction hemostatic clip for use in a digestive endoscope, characterized by: It comprises a guide wire tube (101); A clamping seat cover (103) is arranged at one end of the guide wire tube (101), and a clamping and releasing mechanism (2) is arranged between the guide wire tube (101) and the clamping seat cover (103); Two groups of hemostatic clamp heads (102) are hinged to the clamping seat cover (103) through a hinge shaft, the head end of the hemostatic clamp head (102) is provided with a gradient block, and the rear end is provided with a tooth, and the tooth is flush with the gradient block; A driving column (104) is arranged in the clamping seat cover (103), and two connecting rods (105) are rotatably arranged on both sides of one end of the driving column (104) through a rotating shaft, and the other ends of the two groups of connecting rods (105) are hingedly connected with one end of the hemostatic clamp head (102); Two groups of lock hooks (106) are arranged on the sides of the two groups of hemostatic clamp heads (102) close to each other, and when the two groups of hemostatic clamp heads (102) are closed, the two groups of lock hooks (106) are locked by being buckled with each other, and the lock hooks (106) are made of degradable material; A traction wire (107) is arranged in the guide wire tube (101); A handle rod (108) is fixedly installed at one end of the guide wire tube (101); A control mechanism (3) is arranged on the handle rod (108).
2. The endoscopic hemostatic clip according to claim 1, wherein: The degradable material of the lock hook (106) is composed of a copolymer of polycaprolactone and polyglycolic acid.
3. The endoscopic hemostatic clip of claim 1, wherein: The clamping and releasing mechanism (2) comprises metal rods (201) fixedly arranged in pairs by supporting blocks, lock ball heads (202) fixedly installed at the other ends of the metal rods (201), connecting ropes (203) fixedly arranged on the surfaces of the lock ball heads (202), the other ends of the connecting ropes (203) fixedly connected with the supporting blocks, and a driving rod (204) fixedly installed on the surface of the driving column (104) and corresponding to the connecting ropes (203), and a lock groove corresponding to the lock ball heads (202) is formed in the inner side wall of the guide wire tube (101).
4. The endoscopic hemostasis clip according to claim 3, wherein: The metal rods (201) are made of nickel-titanium alloy material.
5. The endoscopic hemostasis clip according to claim 3, wherein: The metal rods (201) and the connecting ropes (203) are designed as inclined mechanisms.
6. The endoscopic hemostasis clip according to claim 1, wherein: The control mechanism (3) comprises a pull ring seat (301) sliding on the handle rod (108), a telescopic rod (302) fixed between the pull ring seat (301) and the handle rod (108), a first spring (304) arranged on the surface of the telescopic rod (302), and one end of the traction wire (107) away from the driving column (104) fixedly connected with the pull ring seat (301).
7. The endoscopic traction hemostasis clip of claim 6, wherein: A limiting sliding opening (303) corresponding to the pull ring seat (301) is formed in the handle rod (108), and the pull ring seat (301) can slide in the limiting sliding opening (303) of the handle rod (108).
8. The endoscopic hemostasis clip according to claim 6, wherein: The control mechanism (3) further comprises a rectangular slot formed on the pull ring seat (301), the pull ring seat (301) is fixedly installed in the rectangular slot, and a connecting plate (305) in a concave structure design is arranged on the pull ring seat (301); a connecting shaft is fixedly installed in the connecting plate (305); a rotating plate (306) is rotatably installed on the surface of the connecting shaft through a bearing; a reset torsion spring (307) is arranged on the surface of the connecting shaft; the two ends of the reset torsion spring (307) are fixedly connected with the rotating plate (306) and the connecting plate (305) respectively; and one end of the rotating plate (306) is fixedly connected with a positioning guide column (311).
9. The endoscopic traction hemostasis clip of claim 8, wherein: A top rod (309) is slidably installed on the pull ring seat (301), and a fixed baffle disc (310) is fixedly installed on the surface of the top rod (309); a second spring (308) is arranged on the surface of the top rod (309); and a button seat (313) is fixedly arranged at the end, away from the rotating plate (306), of the top rod (309).
10. The endoscopic traction hemostasis clip of claim 9, wherein: A moving slot matched with the top rod (309) is formed on the pull ring seat (301), and a sliding slot matched with the button seat (313) is formed on the pull ring seat (301).