Intravascular stent and preparation method and application thereof

A technology of vascular stents and support sections, which is applied in the direction of stents, blood vessels, and devices of human tubular structures, etc. It can solve the problems of thrombosis, inapplicable restoration of iliac vein blood flow state, and increase blood flow, so as to improve accuracy, Good clinical application prospect and good supporting effect

Active Publication Date: 2016-07-27
SUZHOU TIANHONGSHENGJIE MEDICAL INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems with these iliac vein stents: they are not suitable for restoring the blood flow state of the iliac vein and increasing the blood flow, and it is easy to cause the formation of thrombus. Therefore, it is necessary to carry out research and development and application research of new iliac vein stents

Method used

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  • Intravascular stent and preparation method and application thereof
  • Intravascular stent and preparation method and application thereof
  • Intravascular stent and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0078] The above content of embodiment 1 and embodiment 2 are the same, the only difference is: in embodiment 1, the plane formed by the front ends of the first repeating monomers 11 is perpendicular to the axis of the vascular stent, as figure 2 and image 3 shown. In Embodiment 2, the planes formed by the front ends of the multiple first repeating monomers 11 intersect the axis of the vascular stent, and the plane formed by the front ends of the multiple first repeating monomers 11 intersects the axis of the vascular stent. Angle β is 45°~89°, such as Figures 8 to 10 As shown, among them, Figures 8 to 10 Among them, the angle β between the plane formed by the front ends of a plurality of first repeating monomers 11 and the axis of the vascular stent is 70°. In Example 2, the length of the first repeating monomers 11 changes gradually. However, Its length range should be within the length range of the first repeating monomer 11 defined above.

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Abstract

The invention relates to an intravascular stent and a preparation method and application thereof. The intravascular stent comprises a positioning section, a center supporting section and a tail end supporting section. The positioning section comprises a plurality of first repetition single bodies. The center supporting section comprises at least two center supporting units and at least one first connecting unit. The center supporting units comprise a plurality of second repetition single bodies. The tail end supporting section comprises at least two tail end supporting units and at least one second connecting unit. The tail end supporting units comprise a plurality of third repetition single bodies. The number of the first repetition single bodies is different from the number of the second repetition single bodies. The supporting force of the center supporting section is larger than that of the tail end supporting section. A plane formed by the front end parts of the first repetition single bodies is perpendicular to the axis of the intravascular stent. The intravascular stent is good in supporting effect, hurt to the vein wall is slight, thrombus forming can be effectively avoided, and the positioning effect is good.

Description

Technical field [0001] The invention is a medical device field, which involves a kind of vascular stent, its preparation methods and applications. Background technique [0002] Varicic diseases are the most common in vascular surgery, especially deep venous thrombosis in the lower limbs and large hidden veins in the lower limbs.A large part of the causes of these two diseases are caused by compression of iliac veins.IliacveincomPressionsyndrome (IVCS) refers to the compression of the iliac vein by the iliac vein, causing intravus adhesion, narrowing, or occlusion, thereby a series of clinical symptoms, also known as May -Thurner, Cockett syndrome.The incidence of compression syndrome of iliac vein is 20 % to 34 %. [0003] In terms of treatment, surgery has been used to solve venous pressure. Due to the need for abdominal surgery, the trauma is large, and patients have been difficult to accept. Therefore, the number of surgery reported in my country is relatively small.As a resul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/915A61F2/90A61F2/06A61F2/07
CPCA61F2/06A61F2/90A61F2/915A61F2002/072A61F2002/91508A61F2002/91516A61F2002/91541A61F2002/91575
Inventor 王晓天冯海全李晓强王永刚唐烈
Owner SUZHOU TIANHONGSHENGJIE MEDICAL INSTR CO LTD
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