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Multilayer-coated stent for controlled drug release and manufacturing method thereof
专利权人:
Kyung Bum Lee
发明人:
Kyung Bum Lee,Seung Jung Park,Cheol Whan Lee
申请号:
US11210807
公开号:
US08845716B2
申请日:
2005.08.25
申请国别(地区):
US
年份:
2014
代理人:
摘要:
The present invention provides a multilayer-coated stent for controlled drug release, comprising: a first base layer formed on a stent support and made of poly(ethylene-co-vinylacetate) or polystyrene-ethylene-butylene rubber polymer a second coating layer formed on the first base layer and made of a biocompatible or a bioabsorbable polymer and a drug component and a third coating layer formed on the second coating layer and made of a biocompatible or a bioabsorbable polymer and a drug component different from the drug component of the second coating layer. The inventive stent can deliver a broad range of therapeutic substances for a long time and prevent the early rapid release of the drug components in blood. Also, unlike the existing drug-coated stents, the inventive stent includes two kinds of drugs complementary to each other, but can optimize the efficacy of the drugs by differentiating the control of drug release according to time.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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