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Installation guide device for ligature carrier for varices of esophagus

A technology for esophageal veins and guides, which is applied in the field of medical devices, can solve the problems of low success rate of guide installation, easy to wear ligatures, and easy embedding of silicone rings, etc., and achieves the advantages of simple installation method, convenient operation, and guaranteed traction force Effect

Inactive Publication Date: 2008-09-24
石定 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original introducer not only has a low success rate of installation, but also the silicone ring is easy to embed in the joint between the introducer and the ligature transparent cap, and the ligature line is easy to wear

Method used

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  • Installation guide device for ligature carrier for varices of esophagus

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0014] As shown in Figure 1, the installation guide for this esophageal varices ligation device mainly includes a guide 1, the overall shape of the guide 1 is bullet-shaped, the head section of the guide 1 is a cone-like shape, and the tail section is a cylinder. The head section and the tail section are in an arc-shaped natural transition. The tail section of the guide 1 is provided with a hollow blind hole 5 (blind hole depth b=4mm, inner diameter d1=12.3mm, outer diameter d2=12.8mm), and the hole edge of the blind hole 5 is symmetrically arranged for Two semicircular notches 6 (notch height c=2.5mm, wide e=3.5mm) of fixing ligature 3.

[0015] As shown in Figure 2, the blind hole 5 at the tail section of the guide 1 is plugged and connected with the ligation transparent cap 2. The ligation thread 3 is passed through the ligation transparent cap 2, and the...

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Abstract

The invention relates to an installation guide of an esophageal varicosity ligator, which mainly comprises a guide. The caudal end of the guide is internally provided with a hollow form blind hole. The edge of the blind hole is provided with a gap which is used for fixing a ligation line. The overall shape of the guide takes the shape of a sub warhead. The head part of the guide is conoid. The end part of the guide is cylinder. The head part naturally transits to the end part with the curved shape. The edges of the blind hole are symmetrically provided with two gaps. The gaps take the shape of semi-circulars or other shapes. The installation guide has the beneficial effects that: the installation guide can directly guide a silicon ring to a ligation transparent cap, therefore avoiding the wear and tear of the ligation line, improving the success ratio of the installation, ensuring the traction force of the ligation line, avoiding that when in operation the ligation line is snapped because of the installation and wear. The installation guide has convenient operation, can cause the installation method more convenient, therefore, the main components of the esophageal varicosity ligator can be assembled quickly. The design of the semi-circular gap can ensure the ligation line not to be worn.

Description

technical field [0001] The invention mainly relates to a medical device, mainly an installation guide for an esophageal varices ligation device. Background technique [0002] At present, endoscopic ligation is an effective method for the treatment of esophageal variceal bleeding. It has the characteristics of less trauma, less pain for patients, fewer complications and lower operation costs, and is especially suitable for liver cirrhosis with poor liver function. In patients, the hemostasis rate for active bleeding is 95%, and some elective treatment medical records can completely disappear varicose veins. [0003] Esophageal variceal bleeding is the main cause of death in advanced liver cirrhosis. The mortality rate of active bleeding from esophageal varices is as high as 50%, while the mortality rate of emergency surgical shunt operation is as high as 32%. Endoscopic ligation for hemostasis is not only simple and effective, but also has a low mortality rate of less than 5...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12
Inventor 石定
Owner 石定
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