发明名称 |
Trocar system including cannula stabilization seal |
摘要 |
A stabilization seal is used with existing cannulas for forming a gas-tight seal with tissue in a body wall. The stabilization seal includes a cylindrical inflatable elongate tube having a graduated wall-thickness that is thicker in a central region and thinner in a distal-end region. The tube includes a sealing cuff, having an inflation port, for sealing around a cannula. Application of inflation pressure greatly expands the distal-end region while the central region expands slightly. Another embodiment of a stabilization seal includes an inflatable thread that is used with a cannula having a helical channel on its outer surface. An inflatable tube is wound into the channel. A distal end of the tube includes a gas-tight seal and a proximal end of the tube includes an inflation port. In the uninflated condition the nested tube is flush with the channel. Inflating the tube enlarges the cannula assembly. |
申请公布号 |
EP2891463(A1) |
申请公布日期 |
2015.07.08 |
申请号 |
EP20150156361 |
申请日期 |
2007.03.21 |
申请人 |
APPLIED MEDICAL RESOURCES CORPORATION |
发明人 |
HART, CHARLES C.;AU, GIGI;PRAVONGVIENGKHAM, KENNII;ALBRECHT, JEREMY J. |
分类号 |
A61B17/34;A61B17/00 |
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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