发明名称 |
Prosthesis having a sleeve valve |
摘要 |
Disclosed is a pressure sensitive prosthesis (10) that includes a tubular member (11) having a passageway (12) extending therethrough and a sleeve (13) attached about one end of the tubular member. The sleeve functions as a one-way valve to permit fluid flowing through the sleeve lumen (15) in a first direction (17) and under a first pressure, while collapsing in response to fluid flowing in a second direction 18 where the pressure that exceeds that of the first direction or pressure. One aspect of the invention includes an esophageal anti-reflux expandable prosthesis wherein the sleeve is adapted to invert back through the tubular stent frame to permit belching or vomiting (fluid or materials under a third, significantly higher pressure). Another aspect of the invention includes a tubular drainage stent (60), such as a biliary or urethral stent in which the sleeve opens to permit passage of fluids, then collapses to prevent retrograde flow. |
申请公布号 |
US6746489(B2) |
申请公布日期 |
2004.06.08 |
申请号 |
US20010876520 |
申请日期 |
2001.06.07 |
申请人 |
WILSON-COOK MEDICAL INCORPORATED |
发明人 |
DUA KULWINDER S.;MOORE SCOTT T.;KARPIEL JOHN A. |
分类号 |
A61F2/04;A61F2/86;(IPC1-7):A61F2/36 |
主分类号 |
A61F2/04 |
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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