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1. 发明申请

WO2007093957A2 A CANNULA 审中-公开
标题翻译：一个肛门
公开(公告)号：WO2007093957A2
公开(公告)日：2007-08-23
申请号：PCT/IB2007/050464
申请日：2007-02-13
申请人： RÖSCH, Theodor, Gerhard
发明人： RÖSCH, Theodor, Gerhard
CPC分类号： A61B17/3421 , A61B17/3498 , A61B2017/3419 , A61B2017/3443 , A61B2017/349
摘要： A cannula for fixation within a portal to provide access to a surgical worksite by a surgical instrument, comprises an elongate tubular body defining a passage for receiving a surgical instrument, the tubular body having an upper end and a lower end, a sealing assembly located at the upper end for sealingly receiving a surgical instrument, and a generally cylindrical sleeve surrounding and extending along at least part of the tubular body. The sleeve has a lower end which is secured to the tubular body, an upper end and an external screw thread and is of a flexible material so that stretching the sleeve in the direction of the upper end of the tubular body by displacing the tubular body and sleeve relative to each other increases the pitch and reduces the depth of the thread and relative displacement in the opposite direction reduces the pitch and increases the depth of the thread.
摘要翻译：用于在入口内固定以通过外科器械进入手术工作场所的套管包括限定用于接收外科器械的通道的细长管状体，所述管状体具有上端和下端，密封组件位于用于密封地接收外科器械的上端，以及围绕并沿着管状体的至少一部分延伸的大致圆柱形套筒。套筒具有固定到管状体的下端，上端和外螺纹，并且是柔性材料，从而通过使管状体移位而沿着管状体的上端的方向拉伸套筒，相对于彼此的套筒增加了间距并减小了线的深度，并且相反方向上的相对位移减小了间距并增加了线的深度。

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