Vascular stent, method for preparing same and application of vascular stent

A vascular stent and support section technology, which is applied to stents, blood vessels, and devices of human tubular structures, etc., can solve problems such as increasing blood flow, inappropriate restoration of iliac vein blood flow, thrombosis, etc., and achieves good supporting effect. Good practical significance, the effect of reducing damage

Active Publication Date: 2016-12-07
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 bloo...

Method used

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  • Vascular stent, method for preparing same and application of vascular stent
  • Vascular stent, method for preparing same and application of vascular stent
  • Vascular stent, method for preparing same and application of vascular stent

Examples

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Embodiment 1

[0074] 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 a vascular stent, a method for preparing the same and application of the vascular stent. The vascular stent comprises a positioning zone and a supporting zone. The positioning zone comprises a plurality of first repeat monomers, the supporting zone comprises at least two supporting units and at least one connecting unit, each supporting unit comprises a plurality of second repeat monomers, the quantity of the first repeat monomers is different from that of the second repeat monomers, and the second repeat monomers in each of the supporting units positioned at the front end and the rear end of the supporting zone are connected with the second supporting monomers in the other corresponding adjacent supporting unit by a first connecting unit in a one-to-one correspondence manner to form closed-loop structures. The vascular stent, the method and the application have the advantages that the vascular stent is particularly applicable to iliac veins, and good iliac vein supporting effects can be realized by the vascular stent; venous walls rarely can be injured, and stent secondary thrombosis after the vascular stent is implanted can be effectively prevented; the vascular stent can be effectively positioned in the iliac veins and is easy and convenient to operate, and the release accuracy can be improved.

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): A61F2/915A61F2/07
CPCA61F2/07A61F2/915A61F2002/072A61F2002/91508A61F2002/91516A61F2002/91541A61F2002/91575
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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