发明名称 |
Trocar with overlapping seal elements |
摘要 |
A trocar (2) includes a hollow body (4) defining a path between its proximal and distal ends with an obturator assembly (6) positioned along the path. The tip (34, 36) of the obturator assembly has a cutting element (38). A novel gas sealing assembly (114) seals the path along the trocar body and includes at least three interleavened elastomeric sealing elements (124) which seal the path when an object, such as an obturator barrel (14), is not positioned along the path. The gas sealing assembly also includes a flexible, elastic, conical element (136) with a hole (158) at its tip and raised ridges or rings (164) along its inner surface (154) for sealing the path when an object is positioned along the path.
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申请公布号 |
US5385552(A) |
申请公布日期 |
1995.01.31 |
申请号 |
US19930031174 |
申请日期 |
1993.03.11 |
申请人 |
HABLEY MEDICAL TECHNOLOGY CORPORATION |
发明人 |
HABER, TERRY M.;SMEDLEY, WILLIAM H.;FOSTER, CLARK B. |
分类号 |
A61B17/34;A61M39/06;(IPC1-7):A61M5/178 |
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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