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Bifurcated silicone airway stent

A silicone and bifurcated technology, applied in the field of medical devices, can solve problems such as difficulty in adjusting the angle of the stent, damage to the inner wall of the human body cavity, etc., and achieve the effects of easy adjustment, reduced tension, and reduced damage

Inactive Publication Date: 2019-07-12
SHENZHEN MEIHAO CHUANGYI MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a bifurcated silicone stent, which solves the problem that the angle adjustment of the existing stent in the bifurcated lumen of the human body is difficult, and the inner wall of the lumen of the human body is easily damaged.

Method used

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  • Bifurcated silicone airway stent
  • Bifurcated silicone airway stent
  • Bifurcated silicone airway stent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] refer to Figure 1 to Figure 5 , a bifurcated silicone stent 10, comprising a stent main body 11, a first branch 12 and a second branch 13 connected through the stent main body 11, the stent main body 11, the first branch 12 and the second branch 13 form a Y-shaped structure; the The tube wall thickness of the bracket main body 11, the first branch 12 and the second branch 13 is 1.3 millimeters; 11 and the second branch 13 connection, the first branch 12 and the second branch 13 connection extending the first slot 101, the second slot 102 and the third slot 103, between the edges of the first slot 101 The distance L1 between them is 1.5 millimeters, the minimum distance between its inner wall and the inner wall of the bifurcated silicone stent 10 is 0.4 meters, and the minimum distance L2 between the connection between the main body 11 of the stent and the inner wall of the first branch 12 is 0.5 millimeters; The distance between the two edges of the second slot 102 is...

Embodiment 2

[0035] refer to Figure 6 , a bifurcated silicone stent 20, comprising a stent main body 21 and a first branch 22 connected through the side wall of the stent main body 21, the tube wall thickness of the stent main body 21 and the first branch 22 is 1.0 mm, bifurcation The outer wall of the type silicone bracket 20 is provided with a first slot 201 extending along the junction of the bracket main body 21 and the first branch 22, the distance between the two sides of the first slot 201 is 0.5 mm, and the inner wall is in line with the bifurcated type. The minimum distance between the inner walls of the silicone stent 20 is 0.1 mm, and the minimum distance between the connection between the stent main body 21 and the inner wall of the first branch 22 is 0.2 mm.

[0036] The bifurcated silicone stent 20 provided in this embodiment is suitable for treating lesions in branch blood vessels of the human body.

[0037] It should be noted that the bifurcated silicone stent provided by...

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Abstract

The invention provides a bifurcated silicone airway stent. The bifurcated silicone airway stent comprises a stent main body and a first branch in through connection with the stent main body, wherein the thickness of the pipe wall of the bifurcated silicone stent is 1.0-1.3 mm; a first slot extending along the joint of the stent main body and the first branch is arranged on the outer wall; the distance between the edges of the two sides of the first slot is 0.5-1.5 mm; the minimum distance between the inner wall of the first slot and the inner wall of the bifurcated silicone stent is 0.15-0.4 mm; and the minimum distance between the inner wall of the first slot and the joint of the stent main body and the inner wall of the first branch is 0.2-0.5 mm. According to the bifurcated silicone airway stent, the slot is formed in the outer wall of the joint of the stent main body and the first branch, so that the angle between the stent main body and the first branch is easier to adjust; and after the stent is implanted into an airway of a patient, damage to the inner wall of a trachea of the patient is reduced since the reverse elastic / pulling force to a bifurcated lumen of the patient isreduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a bifurcated silicone stent. Background technique [0002] Stenosis of the trachea, bronchi or blood vessels caused by inflammatory granulomas, scars, tumors and other lesions often easily lead to problems such as poor breathing and insufficient blood supply, which may be life-threatening in severe cases. Stent implantation is one of the important means to treat human luminal stenosis or disease. When the lesion occurs at the bifurcation of the luminal structure, it is usually necessary to design the stent to be compatible with the bifurcated structure. Between the branches of the bifurcated stent The included angle of the bifurcated stent is usually designed to be roughly the same as the angle of the bifurcated lumen of the human body. However, due to the differences in the angle of the lumen of different patients, after the bifurcated stent is implanted in the bifurcate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/86
CPCA61F2/86
Inventor 王锋周立谭景霞汤宁
Owner SHENZHEN MEIHAO CHUANGYI MEDICAL TECH
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