Hemostatic clip for endoscope

Abstract

The utility model belongs to the technical field of hemostatic clips, and particularly relates to an endoscope hemostatic clip which comprises a bourdon tube, an operating rod is fixedly arranged at one end of the bourdon tube, a pull ring is fixedly arranged at the end, away from the bourdon tube, of the operating rod, a spring fixing tube is fixedly arranged at the other end of the bourdon tube, and a tightening tube is installed at the end, away from the bourdon tube, of the spring fixing tube. Two symmetrically-distributed clamping pieces are installed on the side, away from the spring fixing pipe, in the tightening pipe, fixing pins matched with the two clamping pieces are fixedly arranged at the end, away from the spring pipe, of the tightening pipe, and a control assembly matched with the two clamping pieces is arranged in the spring pipe; the control assembly is operated to control the two clamping pieces to move, when the two clamping pieces stretch out of the tightening pipe, the two clamping pieces are opened towards the two sides under the action of the fixing pin, when the two clamping pieces retract into the tightening pipe, the two clamping pieces are closed under the action of the end of the tightening pipe, the clamping pieces can be repeatedly opened and closed, and operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of hemostatic clips, and in particular relates to an endoscope hemostatic clip. Background Art

[0002] Hemostatic clip surgery is an important method for treating bleeding. The hemostatic clip device is inserted through the biopsy hole of a gastroenteroscope or enteroscope, and the clip is released under direct vision to achieve the purpose of hemostasis. For larger lesions, multiple clips can be released for hemostatic treatment. It has the characteristics of no incision, preservation of the entire stomach and intestines, fast hemostasis, low incidence of rebleeding, and few complications. It is quick and safe to operate, will not cause ulcers or aggravation of existing ulcer damage, and will not cause coagulation, degeneration, and necrosis of mucosal tissue. It has become the most effective and clinically valuable method for non-surgical treatment of gastrointestinal bleeding. At present, during surgery, the tissue is constantly peristaltic, and it is impossible to accurately clamp the target lesion every time, and it needs to be opened and closed repeatedly. The structure of the tightening tube and the spring tube of the hemostatic clip on the market is difficult to assemble and will produce debris, which will damage the gastrointestinal tract. In addition, after the clip on the market is released after accidentally clamping the tissue, the clip cannot be removed without damage. Therefore, an endoscopic hemostatic clip is needed to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide an endoscope hemostatic clip, which controls the movement of two clips by operating a control component, so that when the two clips extend out of the tightening tube, they are opened to both sides respectively under the action of a fixing pin, and when the two clips are retracted into the tightening tube, they are closed under the action of the end of the tightening tube, so that the clips can be repeatedly opened and closed, and the operation is convenient.

[0004] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0005] An endoscopic hemostatic clip comprises a spring tube, an operating rod is fixedly provided at one end of the spring tube, a pull ring is fixedly provided at the end of the operating rod away from the spring tube, a spring fixing tube is fixedly provided at the other end of the spring tube, a tightening tube is installed at the end of the spring fixing tube away from the spring tube, two symmetrically distributed clips are installed on the side of the tightening tube away from the spring fixing tube, a fixing pin matching the two clips is fixedly provided at the end of the tightening tube away from the spring tube, and a control component matching the two clips is provided inside the spring tube.

[0006] The control component includes a steel wire installed inside the spring tube, a hook fixing tube is fixedly provided at one end of the steel wire close to the tightening tube, two symmetrically distributed hooks are fixedly provided at one end of the hook fixing tube close to the two clips, a sliding pin is installed at one end of the two hooks close to the fixing pin, and the sliding pin is fixedly connected to one end of the two clips.

[0007] The two clips are fixed with barbs on one side close to the spring tube, the inner wall of the tightening tube is provided with two arc grooves matching the barbs, the pull hook fixing tube is concentrically fixed with a hanging platform, the spring fixing tube is provided with an arc opening matching the hanging platform on one side close to the tightening tube, and the two pull hooks are provided with arc openings matching the sliding pin on one end away from the spring tube.

[0008] The operating rod is provided with a circular cavity matching the spring tube, and the operating rod is provided with an elliptical through groove interconnected with the circular cavity. The operating rod is slidably equipped with an operating ring, and a connecting block matching the elliptical through groove is provided inside the operating ring. The end of the steel wire close to the operating rod is fixedly connected to the connecting block.

[0009] Two protruding claws are fixedly provided on one end of the two clips away from the spring tube.

[0010] The arc-shaped openings at the two ends of the draw hooks are arranged in opposite directions.

[0011] The utility model controls the movement of the two clamps by operating the control component, so that when the two clamps extend out of the tightening tube again, they are opened to both sides respectively under the action of the fixing pin, and when the two clamps are retracted into the tightening tube, they are closed under the action of the end of the tightening tube, so that the clamps can be repeatedly opened and closed, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings.

[0013] Figure 1 This is a structural schematic diagram of an embodiment of an endoscopic hemostatic clip of the utility model;

[0014] Figure 2 It is a schematic cross-sectional structure diagram of an embodiment of an endoscope hemostatic clip of the utility model;

[0015] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of a tightening tube in an embodiment of an endoscope hemostatic clip of the utility model;

[0017] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0018] The main component symbols are described as follows:

[0019] Spring tube 1, operating rod 10, pull ring 11, spring fixing tube 12, tightening tube 13, clip 14, fixing pin 15, steel wire 16, hook fixing tube 17, hook 18, sliding pin 19, barb 20, arc groove 21, hanging platform 22, circular cavity 23, elliptical through groove 24, operating ring 25, connecting block 26, and protruding claw 30. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-5 As shown, an endoscope hemostatic clip of the utility model comprises a spring tube 1, an operating rod 10 is fixedly arranged at one end of the spring tube 1, a pull ring 11 is fixedly arranged at the end of the operating rod 10 away from the spring tube 1, a spring fixing tube 12 is fixedly arranged at the other end of the spring tube 1, a tightening tube 13 is installed at the end of the spring fixing tube 12 away from the spring tube 1, two symmetrically distributed clips 14 are installed at the side of the tightening tube 13 away from the spring fixing tube 12, a fixing pin 15 matching the two clips 14 is fixedly arranged at the end of the tightening tube 14 away from the spring tube 1, and a control component matching the two clips 14 is arranged inside the spring tube 1;

[0022] Before using the utility model, the user disinfects and sterilizes the utility model, and then operates the control component to ensure that the two clips 14 can be opened and closed normally before using it;

[0023] When the utility model is used, the user inserts the closed clip 14 and the tightening tube 13 into the patient's body through the endoscope clamp channel. After the end of the clip 14 reaches the bleeding position, the user controls the two clips 14 to extend out of the tightening tube 13 through the control component. The two clips 14 are opened under the action of the fixing pin 15. After the user aligns the two clips 14 with the bleeding position, the two clips 14 are retracted and retracted into the tightening tube 13. The clips 14 are closed under the action of the tightening tube 13. The front ends of the two clips 14 pre-clamp the bleeding position, and the hemostasis state is observed through the endoscope. If the clamping position is not ideal, the user can open the clips 14 again through the control component to clamp from below, so that the device can be repeatedly opened and closed, which is convenient for operation.

[0024] Furthermore, the user can rotate the tightening tube 13 and the clip 14 through the control assembly, so that the device can be adapted to different usage environments;

[0025] The utility model controls the movement of the two clamps by operating the control component, so that when the two clamps extend out of the tightening tube again, they are opened to both sides respectively under the action of the fixing pin, and when the two clamps are retracted into the tightening tube, they are closed under the action of the end of the tightening tube, so that the clamps can be repeatedly opened and closed, and the operation is convenient.

[0026] The control assembly includes a steel wire 16 installed inside the spring tube 1, and a hook fixing tube 17 is fixedly provided at one end of the steel wire 16 near the tightening tube 13, and two symmetrically distributed hooks 18 are fixedly provided at one end of the hook fixing tube 17 near the two clips 14, and a sliding pin 19 is installed at one end of the two hooks 18 near the fixing pin 15, and the sliding pin 19 is fixedly connected to one end of the two clips 14;

[0027] When using the utility model, after the user inserts the tightening tube 13 and the clip 14 into the patient's body through the endoscopic forceps channel, the user directly pushes the steel wire 16, and the steel wire 16 drives the sliding pin 19 to move through the hook fixing tube 17 and two hooks 18, and the sliding pin 19 synchronously drives the two clips 14 to move, which is convenient for the user to operate.

[0028] The two clips 14 are fixed with barbs 20 on the side close to the spring tube 1, and the inner wall of the tightening tube 14 is provided with two arc grooves 20 matching the barbs 20. The hook fixing tube 17 is concentrically fixed with a hanging platform 22. The spring fixing tube 12 is provided with an arc opening matching the hanging platform 22 on the side close to the tightening tube 13. The two hooks 18 are provided with arc openings matching the sliding pin 19 on the ends away from the spring tube 1.

[0029] When using the utility model to fix the bleeding position of the patient, the user directly pulls the steel wire 16 outward, and the steel wire 16 synchronously drives the hook fixing tube 17 and the hook 18 to move in the tightening tube 13 toward the spring tube 1. After the clip 14 clamps the bleeding position of the patient, the user continues to pull the steel wire 16, and the steel wire 16 synchronously pulls the hook fixing tube 17, and the hook fixing tube 17 drives the two hooks 18 to move, so that the two barbs 20 are stuck in the arc groove 20 on the inner wall of the tightening tube 13. The user continues to pull the steel wire to make the hook 18 close to the spring tube 1. One end of the sliding pin 19 is deformed, and the sliding pin 19 is disengaged from the arc-shaped openings of the two retractor hooks 18, so that the retractor hooks 18 are separated from the sliding pin 19. At the same time, under the pulling of the steel wire 16, the hanging platform 22 on the retractor fixing tube 17 passes through the arc opening, so that the spring fixing tube 12 is deformed near one end of the tightening tube 13, so that the tightening tube 13 is separated from the spring fixing tube 12, so that the tightening tube 13 and the clip 14 remain in the patient's body to stop bleeding at the bleeding position, and when the tightening tube 13 and the clip 14 fall off, no other debris is generated, thereby ensuring the health of the patient.

[0030] The operating rod 10 is provided with a circular cavity 23 matching the spring tube 1, and the operating rod 10 is provided with an elliptical through groove 24 interconnected with the circular cavity 23. The operating rod 10 is slidably equipped with an operating ring 25, and a connecting block 26 matching the elliptical through groove 24 is provided inside the operating ring 25. One end of the steel wire 16 close to the operating rod 10 is fixedly connected to the connecting block 26; when using the utility model, the user only needs to control the operating ring 25 to open and close the clip 14, which is convenient for operation.

[0031] Two protruding claws 30 are fixedly provided at one end of the two clips 14 away from the spring tube 1, thereby reducing the contact area with the bleeding position of the patient and better stopping bleeding.

[0032] The arc-shaped openings at the ends of the two hooks 18 are arranged in opposite directions to prevent the sliding pin 19 from falling off and ensure the smooth use of the device.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An endoscopic hemostatic clip, comprising a spring tube, characterized in that: An operating rod is fixedly provided at one end of the spring tube, a pull ring is fixedly provided at the end of the operating rod away from the spring tube, a spring fixing tube is fixedly provided at the other end of the spring tube, a tightening tube is installed at the end of the spring fixing tube away from the spring tube, two symmetrically distributed clips are installed inside the tightening tube on the side away from the spring fixing tube, a fixing pin matching the two clips is fixedly provided at the end of the tightening tube away from the spring tube, and a control component matching the two clips is provided inside the spring tube.

2. An endoscopic hemostatic clip according to claim 1, characterized in that: The control component includes a steel wire installed inside the spring tube, a hook fixing tube is fixedly provided at one end of the steel wire close to the tightening tube, two symmetrically distributed hooks are fixedly provided at one end of the hook fixing tube close to the two clips, a sliding pin is installed at one end of the two hooks close to the fixing pin, and the sliding pin is fixedly connected to one end of the two clips.

3. An endoscopic hemostatic clip according to claim 2, characterized in that: The two clips are fixed with barbs on one side close to the spring tube, the inner wall of the tightening tube is provided with two arc grooves matching the barbs, the pull hook fixing tube is concentrically fixed with a hanging platform, the spring fixing tube is provided with an arc opening matching the hanging platform on one side close to the tightening tube, and the two pull hooks are provided with arc openings matching the sliding pin on one end away from the spring tube.

4. The endoscopic hemostatic clip according to claim 3, characterized in that: The operating rod is provided with a circular cavity matching the spring tube, and the operating rod is provided with an elliptical through groove interconnected with the circular cavity. The operating rod is slidably equipped with an operating ring, and a connecting block matching the elliptical through groove is provided inside the operating ring. The end of the steel wire close to the operating rod is fixedly connected to the connecting block.

5. The endoscopic hemostatic clip according to claim 2, characterized in that: Two protruding claws are fixedly provided on one end of the two clips away from the spring tube.

6. The endoscopic hemostatic clip according to claim 3, characterized in that: The arc-shaped openings at the two ends of the draw hooks are arranged in opposite directions.

Images