Title:
BRAIDED INTRACRANIAL BLOOD VESSEL STENT HAVING LOW THROMBOSIS CAUSING PROBABILITY AND TREATMENT METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/063279
Kind Code:
A1
Abstract:
The present disclosure relates to a braided intracranial blood vessel stent having a low thrombosis causing probability and a treatment method therefor. The braided intracranial blood vessel stent having a low thrombosis causing probability of the present disclosure comprises a cylindrical tubular mesh structure body; the mesh structure body comprises several braiding filaments interwoven to form a continuous mesh structure (3); the braiding filaments comprise warp filaments (1) and weft filaments (2); the warp filaments and the weft filaments intersect to form braiding points; and the braiding points comprise forward braiding points (4) and reverse braiding points (5), wherein the braiding points where the warp filaments (1) are located on the weft filaments (2) are positive braiding points (4), and the braiding points where the warp filaments (1) are located under the weft filaments (2) are reverse braiding points (5); and the braiding filaments are selected from one or more types of metal wires, and a heat treatment oxide layer on the surface of at least one type of metal wires is removed. The treatment method of the present disclosure comprises corrosion treatment and passivation treatment steps, and the braided intracranial blood vessel stent having a low thrombosis causing probability obtained by the treatment method of the present disclosure has a low probability of causing thrombosis.
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Inventors:
LU YIRAN (CN)
Application Number:
PCT/CN2021/120775
Publication Date:
March 31, 2022
Filing Date:
September 26, 2021
Export Citation:
Assignee:
ACCUMEDICAL BEIJING LTD (CN)
International Classes:
A61F2/90; C23C22/48; C23C22/78; C23F1/16; C23F1/32
Foreign References:
| CN112155814A | 2021-01-01 | |||
| CN113425474A | 2021-09-24 | |||
| CN104583463A | 2015-04-29 | |||
| CN106811753A | 2017-06-09 | |||
| CN101214396A | 2008-07-09 | |||
| US20190223879A1 | 2019-07-25 |
Attorney, Agent or Firm:
MERITS & TREE (CN)
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