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Combined membrane-covered stent capable of being bent in any direction

A covered stent, any direction technology, applied in stents, human tubular structure devices, medical science, etc., can solve the problems of increasing the difficulty of design and processing, increasing the risk of product use, and increasing the difficulty, so as to reduce production and quality control Effects of cost, elimination of product risk, and simplification of operational difficulty

Active Publication Date: 2006-02-22
SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This aspect increases the difficulty of product design and processing, increases the risk of product use, and also increases the difficulty of product operation

Method used

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  • Combined membrane-covered stent capable of being bent in any direction
  • Combined membrane-covered stent capable of being bent in any direction
  • Combined membrane-covered stent capable of being bent in any direction

Examples

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Embodiment Construction

[0021] Further illustrate the present invention below in conjunction with accompanying drawing.

[0022] see figure 1 , figure 2 , Figure 5 and Figure 6 The shape of the combined stent-graft that can be bent in any direction according to the present invention is a tubular structure, including a plurality of intermediate stent-graft units 2 and a tail-end stent-graft unit 3, and each stent-graft unit includes a stent-graft unit 4 and a tubular covering unit 5, the support unit 4 is fixed on the covering unit 5 by sutures 6; the support unit 3 is a closed cylindrical structure that includes a plurality of corrugated units processed by alloy wire; the The above-mentioned stent-graft units are sutured by suture 6, and the adjacent stent-graft units are partially overlapped. see figure 2 The stent graft of the present invention can also optionally include a proximal bare section 1 and a distal bare section 7, the proximal bare section 1 is fixed by suturing the proximal in...

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Abstract

The invention discloses a composite tectorial support of random orientation bending for intracavity insulating therapy of human pathology vessel, which consists of several intermediate tectorial support units and a tail tectorial support unit, wherein each tectorial support unit contains tubular tectorial unit and support unit fixed on the tectorial unit by suture, wherein the support unit concludes several sealing column structure of alloying filament fabrication. There is an overlapping part between adjacent tectorial support units, which stitches by the suture. The invention overcomes the directional defect of congeneric product with the advantages of the following: steady structure, random orientation bending, smooth inwall and so on, which is applied in the human pathology therapy of artery, vein or other lumen, especially in the pathology therapy of aorta-vessel.

Description

technical field [0001] The invention relates to a minimally traumatic interventional medical instrument product for treating aneurysms, in particular to a covered stent that can be bent in any direction. Background technique [0002] Aneurysm is a very dangerous vascular disease clinically. It mostly occurs in the elderly around 55 years old. In recent years, it has gradually developed to the middle-aged and young people. According to relevant statistical data, if the treatment measures are not taken in time for patients with aneurysms, the mortality rate will reach about 15% within 24 hours, about 30% within one week, and about 75% within one month. The 5-year survival rate is only 17%. Therefore, once an aneurysm is found, it should be treated accordingly as soon as possible. [0003] At present, the minimally invasive interventional therapy technology using the principle of intracavitary isolation has been widely used. It uses a delivery system with a small diameter to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/06A61M29/00A61B17/00A61L27/00A61F2/07
CPCA61F2250/0039A61F2230/0054A61F2/89A61F2/07A61F2002/075A61F2002/065
Inventor 罗七一许尚栋聂红林
Owner SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD
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