发明名称 |
Dual valve, flexible expandable sheath and method |
摘要 |
A sheath for use in introducing a catheter or other medical instrument into a vessel in the body of a patient. The sheath includes an elongate sheath tube formed of a flexible material which has proximal and distal extremities and a passage extending therethrough A backflow adapter is secured to the proximal extremity of the elongate sheath tube. The backflow adapter has a central opening therein in registration with the passage in the sheath tube. A normally closed primary valve is disposed in the central opening of the backflow adapter and is movable le to an open position. A normally open secondary valve, movable to a closed position, may be configured in the backflow adapter proximal the sheath tube and distal the primary valve. The primary and secondary valves when open permit a catheter or other medical instrument to be inserted into the sheath.
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申请公布号 |
US6808520(B1) |
申请公布日期 |
2004.10.26 |
申请号 |
US20010798019 |
申请日期 |
2001.03.01 |
申请人 |
ENDOVASCULAR TECHNOLOGIES, INC. |
发明人 |
FOURKAS MICHAEL G.;BAKER STEVEN G.;MITCHELL DAVID H. |
分类号 |
A61B17/34;A61M25/00;A61M25/06;A61M39/06;(IPC1-7):A61M25/00 |
主分类号 |
A61B17/34 |
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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