A kind of degradable vascular stent and its preparation method and application
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 青岛健康海洋生物制药有限公司
- Publication Date
- 2017-11-21
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Abstract
Description
technical field
[0001] The invention belongs to the field of biomedical materials, and relates to a vascular stent material, in particular to a degradable vascular stent material and its preparation method and application. Background technique
[0002] Vascular stents are implantable medical device products used for the treatment of vascular lumen stenosis or embolization caused by vascular diseases, to "stretch" the narrowed blood vessels, increase blood flow and prevent myocardial infarction. The vascular stents currently used clinically are mainly metal vascular stents. Metal vascular stents can meet the supporting effect on the vascular lumen when applied to blood vessels, but metal materials cannot be degraded. % restenosis, but also biocompatibility problems such as endothelial dysfunction, chronic inflammation, and mismatch of mechanical properties between blood vessels and stents. Since the non-degradable metal stent material cannot be taken out, it brings obstacles...