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覆膜支架
专利权人:
LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD;先健科技(深圳)有限公司
发明人:
XIAO, Benhao,肖本好,HE, Liming,何里明,LIU, Caiping,刘彩萍
申请号:
CNCN2017/117298
公开号:
WO2018/121364A1
申请日:
2017.12.19
申请国别(地区):
CN
年份:
2018
代理人:
摘要:
A covered stent (10), which is provided with a proximal end end surface (11), a distal end end surface (12) and a peripheral surface (13), which is located between the proximal end end surface (11) and the distal end end surface (12), the peripheral surface (13) comprising an inner surface (132) and an outer surface (131) which is opposite to the inner surface (132). The outer surface (131) is covered with a first coating membrane (141), and the inner surface (132) is covered with a second coating membrane (142). The covered stent further comprises a stent main body (15), which is disposed between the first coating membrane (141) and the second coating membrane (142). At least one of two ends of the first coating membrane (141) and the second coating membrane (142) folds inward or outward so as to wrap at least one from among the proximal end end surface (11) and the distal end end surface (12). By means of carrying out a flange design on a membrane at the proximal end end surface (11) and/or the distal end end surface (12) of the covered stent (10), blood flow may be prevented from directly impacting coating membranes (141, 142) of the outer and inner surfaces (131, 132) of the proximal end end surface (11) and the distal end end surface (12), preventing the tearing of the coating membranes (141, 142) of the outer and inner surfaces (131, 132) which is caused by long-term blood flow impact, as well as a series of adverse effects caused by the tearing of the coating membranes (141, 142).L'invention concerne un stent recouvert (10), qui est pourvu d'une surface terminale (11) d'extrémité proximale, d'une surface terminale (12) d'extrémité distale et d'une surface périphérique (13), qui est située entre la surface terminale (11) d'extrémité proximale et la surface terminale (12) d'extrémité distale, la surface périphérique (13) comprenant une surface interne (132) et une surface externe (131) qui est face à la surface interne (132). La surface externe (131) est recouv
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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