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Hemostatic clamp

A technology of hemostatic clips and chucks, applied in the field of hemostatic clips, which can solve the problems of inflammation, complex processing technology of connecting yokes, etc., and achieve the effect of simple structure

Pending Publication Date: 2022-05-06
MICROPORT UROCARE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The chuck of the hemostatic clip in the prior art can be connected with the traction mechanism through the hook, and the connection between the two can be released by breaking the hook, but once the broken hook falls into the wound, it will cause problems such as inflammation
Alternatively, the collet can be connected to the traction mechanism through the cooperation of the ball head and the connecting yoke, and the connection can be released through the deformation of the connecting yoke, but the processing technology of the connecting yoke is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Please refer to Figure 1 to Figure 6 , the present embodiment provides a hemostatic clip, the hemostatic clip includes a traction device, a clamping device and a first limiting part. The traction device includes a traction mechanism 1100 and an isolation mechanism. The distal end of the traction mechanism 1100 is provided with an inner hole 1101 . In this embodiment, the isolation mechanism preferably includes a first blocking wall 1200 , the first blocking wall 1200 is disposed outside the distal end of the inner hole 1101 and extends along the axial direction of the traction mechanism 1100 . The clamping device includes a cinch tube 2100 and a chuck assembly 2200 . The tightening tube 2100 is provided with a first locking portion. The collet assembly 2200 is partially disposed inside the cinch tube 2100 and includes a clip 2210 and a joint 2220 . The clamping piece 2210 is disposed on the joint portion 2220, and the proximal end of the clamping piece 2210 is prov...

Embodiment 2

[0093] Please refer to Figure 14 and Figure 15 The difference between this embodiment and Embodiment 1 is that the distal end of the sleeve 3100 is inserted into the first lumen of the cinch tube 2100 from the proximal end of the cinch tube 2100, and the sleeve The distal end surface 3101 of the tube 3100 constitutes the second limiting surface.

[0094] Specifically, the distal end of the tightening tube 2100 is formed with a fourth limiting portion 2107 protruding radially inward. The sleeve 3100 includes a third section and a fourth section, the third section is located on the distal side of the fourth section, and the outer diameter of the third section is smaller than that of the fourth section The outer diameter of the segment to form a second stepped surface 3102 on the outer wall of the sleeve 3100 . A second connection hole 3103 is also provided on the third section of the sleeve 3100 (that is, the second connection hole 3103 is located at the distal side of the ...

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PUM

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Abstract

According to the hemostatic clip, a chuck assembly is connected with a traction mechanism in an interference fit mode, and when connection between the chuck assembly and the traction mechanism needs to be removed, only external force capable of overcoming interference fit force between the chuck assembly and the traction mechanism needs to be provided. The hemostatic clip is simple in structure and convenient to use, structural parts are not broken when connection is removed, and the risk of inflammation caused by the fact that broken objects remain in a body and enter a wound is avoided.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a hemostatic clip. Background technique [0002] With the continuous advancement of endoscopic minimally invasive techniques, endoscopic submucosal dissection (ESD), endoscopic retrograde cholangiopancreatography (ERCP), natural orifice endoscopic surgery (NOTES), etc. Endoscopic along the therapeutic operation is widely carried out. Safe and effective closure of the defect or perforation of digestive tract tissue during operation is a key problem that must be solved in various endoscopic minimally invasive operations. [0003] A hemostatic clip is an instrument used to close a defect or perforation in a luminal tissue. The chuck of the hemostatic clip in the prior art can realize the functions of opening, closing and rotating. After being transported to the target position, the chuck is driven by the traction mechanism to realize the opening, closing and rotating f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/122A61B17/128
CPCA61B17/1227A61B17/1285A61B2017/12004A61B17/083A61B17/10
Inventor 杨雪峰江路汪振王泉斌
Owner MICROPORT UROCARE