发明名称 |
STENTS HAVING MULTIPLE LAYERS OF BIODEGRADABLE POLYMERIC COMPOSITION |
摘要 |
An expandable intraluminal stent formed of a material comprised of an inner layer covered by an outer layer, both the inner and outer layers being of biodegradable polymeric composition and exhibiting different time periods of biodegradation is disclosed. The stent is constructed and arranged so that no portion of the inner layer is initially exposed. The stent may also be formed of a framework provided with a first layer of a biodegradable polymer and a second outer layer of a biodegradable polymer over the first layer. The outer layer is futher characterized in that it is a surface erodible polymer. Both the inner and outer layers may be impregnated with one or more drugs for drug delivery. |
申请公布号 |
WO9856312(A1) |
申请公布日期 |
1998.12.17 |
申请号 |
WO1998US12228 |
申请日期 |
1998.06.11 |
申请人 |
SCIMED LIFE SYSTEMS, INC. |
发明人 |
WANG, LIXIAO;YANG, DACHUAN |
分类号 |
A61F2/82;A61L31/10;A61L31/14;(IPC1-7):A61F2/06 |
主分类号 |
A61F2/82 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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