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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. It can solve the problems of increasing blood flow, inapplicable restoration of iliac vein blood flow, and thrombosis, and achieves good support effects. Good clinical application prospect and the effect of improving accuracy

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

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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

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Embodiment 1

[0070] 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 with 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 7 to 9 As shown, among them, Figures 7 to 9 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 and a supporting section. The positioning section comprises a plurality of first repetition single bodies. The supporting section comprises at least two supporting units and at least one first connecting unit. The supporting units comprise a plurality of second repetition single bodies. The number of the first repetition single bodies is different from the number of the second repetition single bodies. A plane formed by the front end parts of the first repetition single bodies intersects with the axis of the intravascular stent. The intravascular stent is especially suitable for the iliac vein and good in supporting effect for the iliac vein, hurt to the vein wall is slight, and secondary thrombus formed in the stent after the intravascular stent is implanted can be effectively avoided. In addition, the intravascular stent can be positioned very well in the iliac vein, releasing accuracy is improved, and operation is easy and convenient. The intravascular stent is simple in structure, convenient to produce and low in cost and accordingly has important practical significance and good clinical application prospects.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a vascular stent, its preparation method and application. Background technique [0002] Venous diseases are the most common vascular surgical diseases, especially deep vein thrombosis of lower extremities and varicose veins of lower extremities are more common. A large part of the causes of these two diseases is caused by the compression of the iliac vein. Iliac vein compression syndrome (iliac vein compression syndrome, IVCS) refers to the compression of the iliac vein by the iliac artery, resulting in intraluminal adhesion, stenosis or occlusion, resulting in a series of clinical symptoms, also known as May–Thurner, Cockett syndrome. The incidence of iliac vein compression syndrome is 20% to 34%. [0003] In terms of treatment, surgery has been used to solve venous compression. Due to the need for abdominal surgery, the trauma is relatively large, and patients have ...

Claims

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Application Information

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IPC IPC(8): A61F2/915A61F2/90A61F2/06A61F2/07
CPCA61F2/06A61F2/90A61F2/915A61F2002/072A61F2002/91508A61F2002/91516A61F2002/91541A61F2002/91575
Inventor 冯海全李晓强王晓天唐烈王永刚
Owner SUZHOU TIANHONGSHENGJIE MEDICAL INSTR CO LTD
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