发明名称 |
Multi-sheath delivery catheter |
摘要 |
A multi-sheath delivery catheter for introducing a prosthesis into a body lumen involving use of (a) an outer sheath containing a portion of the prosthesis and having an inner surface with a non-round cross-section; (b) a middle sheath slideably disposed within the outer sheath and containing another portion of the prosthesis, the middle sheath having a first handle with a non-round cross-section engaging the non-round cross-section of the outer sheath; and (c) a pusher within the middle sheath for engaging the prosthesis, whereby relative rotational movement between the outer sheath and the middle sheath is prevented by virtue of the engagement of the first handle with the non-round cross-section of the outer sheath. In another aspect, the invention provides a delivery catheter having a mechanism for sequentially retracting concentric tubes to deploy the prosthesis. In another aspect, the invention provides a mechanism for preventing relative axial movement of concentric tubes.
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申请公布号 |
US6589251(B2) |
申请公布日期 |
2003.07.08 |
申请号 |
US20010894426 |
申请日期 |
2001.06.28 |
申请人 |
SCIMED LIFE SYSTEMS, INC. |
发明人 |
YEE CARL E.;ROBERTS THOMAS;OCCIDENTALE FRANK;CHRISTIE ROBERT |
分类号 |
A61M37/00;A61F2/06;A61F2/84;A61F11/00;A61M25/00;A61M25/08;(IPC1-7):A61F11/00 |
主分类号 |
A61M37/00 |
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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