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Bifurcation-adjacent part lesion applicable stent

A site and bifurcation technology, applied in stents and other directions, can solve the problems of not being able to completely cover the lesion and the blood vessels not being attached, and achieve the effect of good support, good flexibility and bending performance, and uniform distribution.

Pending Publication Date: 2019-05-24
HANGZHOU WEIQIANG MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a vascular stent for interventional treatment where stenosis or occlusive lesion occurs near the bifurcation of the blood vessel in view of the defects of the prior art, so as to solve the problem of implanting the existing vascular stent into branch vessels. The problem that it cannot completely cover the lesion and does not adhere to the blood vessel

Method used

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  • Bifurcation-adjacent part lesion applicable stent
  • Bifurcation-adjacent part lesion applicable stent
  • Bifurcation-adjacent part lesion applicable stent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]Embodiment 1, as Figure 3-4b As shown, a stent for lesions near the bifurcation is a tubular stent formed by a plurality of wave-shaped supports 101, 121, 131 axially connected together. The tubular stent includes a proximal support mechanism 110, The central supporting mechanism 120 and the distal supporting mechanism 130 are composed of three parts; the proximal supporting mechanism 110 , the central supporting mechanism 120 and the distal supporting mechanism 130 are ring structures respectively. In the above structure, the proximal supporting mechanism 110 , the central supporting mechanism 120 and the distal supporting mechanism 130 are all annular structures, so that the stent forms a tubular structural body. The ring shape in the present invention means that the corrugated support members 101 , 121 , 131 are connected end to end to form a ring.

[0042] The proximal supporting mechanism 110 , the central supporting mechanism 120 and the distal supporting mechani...

Embodiment 2

[0059] Example 2, such as Figure 5-6 As shown in , 13, this embodiment is based on embodiment 1 with some improvements.

[0060] A stent for lesions near the bifurcation, which is a tubular stent formed by a plurality of wave-shaped supports 1111, 1121, 121, 131 axially connected together, the tubular stent includes a proximal support mechanism 110, a middle The zone support mechanism 120 and the distal support mechanism 130 are composed of three parts. The settings of the central zone support mechanism 120 and the distal support mechanism 130 are similar to those in Embodiment 1, and will not be repeated here.

[0061] Different from Example 1, as Figure 5As shown, the proximal support mechanism 110 in this embodiment includes two parts, one part is the circumferential support part 111 connected with the central zone support mechanism 120, and the other part is the directional support part 112 arranged at the proximal end. Both are formed by corrugated supports. The prox...

Embodiment 3

[0066] Example 3, such as Figure 7-8 As shown, this embodiment is based on Embodiment 2 with some improvements.

[0067] A stent for lesions near the bifurcation, which is a tubular stent formed by a plurality of wave-shaped supports 1111, 1121, 121, 131 axially connected together, the tubular stent includes a proximal support mechanism 110, a middle The area supporting mechanism 120 and the distal supporting mechanism 130 are composed of three parts. These three parts are basically the same as in Embodiment 2, except that in this embodiment, the wave rods 1212 of the proximal supporting mechanism 110 and the distal supporting mechanism 130 are all selected as straight rods. , the wave rod 1212 of the support mechanism 120 in the central area is a special-shaped rod, specifically a Z-shaped rod.

[0068] In this embodiment, a connecting component 122 is provided with at least two connecting rods 1221, and the connecting rods 1221 are fixed between the crest unit 1211 or the ...

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Abstract

The invention discloses a bifurcation-adjacent part lesion applicable stent. The bifurcation-adjacent part lesion applicable stent is a tubular stent composed of a plurality of wavy support units axially connected into a whole; the tubular stent comprises a near end support mechanism, a middle support mechanism and a far end support mechanism which are sequentially connected; at least the part outside the near end support mechanism outside the tubular stent extends gradually out of the tubular stent from the far end to the near end. The bifurcation-adjacent part lesion applicable stent can beapplied to interventional treatment on vessel stenosis and occlusion lesion parts close to vessel bifurcations to solve the problem that existing intravascular stents cannot fully cover lesions and beattached to vessels after being implanted into branch vessels.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to a blood vessel stent, in particular to a blood vessel stent that can be used for interventional treatment of stenosis or occlusive lesions near bifurcations. Background technique [0002] With the rapid development of modern society, the degree of population aging is increasing, people's work pressure is increasing, and their living habits are not healthy enough, which leads to frequent occurrence of cardiovascular diseases in our country and has become the number one disease that endangers the health of Chinese people. Its prevention and treatment It has become the focus of domestic and foreign medical circles. Among them, efficient and minimally invasive interventional therapy such as implantation of vascular stents is currently the most important and effective diagnosis and treatment technology for cardiovascular diseases. For vascular stenosis or occlusive lesions, vas...

Claims

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Application Information

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IPC IPC(8): A61F2/915
Inventor 王永胜高国庆李建民其他发明人请求不公开姓名
Owner HANGZHOU WEIQIANG MEDICAL TECH CO LTD
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