发明申请
- 专利标题: DRUG-DELIVERY ENDOVASCULAR STENT AND METHOD FOR TREATING RESTENOSIS
- 专利标题(中): 药物递送内支架和治疗抑郁症的方法
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申请号: US13556893申请日: 2012-07-24
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公开(公告)号: US20120290076A1公开(公告)日: 2012-11-15
- 发明人: Douglas R. SAVAGE , Ronald E. BETTS
- 申请人: Douglas R. SAVAGE , Ronald E. BETTS
- 申请人地址: BM Hamilton
- 专利权人: Biosensors International Group, Ltd.
- 当前专利权人: Biosensors International Group, Ltd.
- 当前专利权人地址: BM Hamilton
- 主分类号: A61F2/82
- IPC分类号: A61F2/82
摘要:
A radially expandable, endovascular stent designed for placement at a site of vascular injury, for inhibiting restenosis at the site, a method of using, and a method of making the stent. The stent includes a radially expandable body formed of one or more metallic filaments and a liquid-infusible mechanical anchoring layer attached to or formed in outer surface of the filaments. A drug coating in the stent is composed of a substantially polymer-free composition of an anti-restenosis drug, and has a substratum infused in the anchoring layer and a substantially continuous surface stratum of drug that is brought into direct contact with the vessel walls at the vascular site. Thus, the rate of release of the anti-restenosis drug from the surface stratum into said vascular site is determined solely by the composition of said drug coating.
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