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1. 发明申请

WO1997047248A1 REUSABLE CANNULA WITH DISPOSABLE SEAL 审中-公开
标题翻译：具有可重复密封的可重复使用的肛门
公开(公告)号：WO1997047248A1
公开(公告)日：1997-12-18
申请号：PCT/US1997003559
申请日：1997-03-10
申请人： ORIGIN MEDSYSTEMS, INC.
发明人： ORIGIN MEDSYSTEMS, INC. , DAVIS, John, W. , KOVAC, Tim, J. , KRAMER, Thomas , LOOMAS, Bryan , TO, John
IPC分类号： A61B17/34
CPC分类号： A61B17/3462 , A61B17/3417 , A61B17/3474 , A61B17/3498 , A61B2017/0023 , A61B2017/349
摘要： A disposable seal assembly for use with a reusable cannula, where the seal assembly is designed for use with the cannula during a single medical procedure and the cannula is designed for multiple uses (each time with a different seal assembly) during a number of medical procedures. The seal assembly includes both a flapper valve fluid seal (for sealing the cannula when no medical instrument is inserted through the seal assembly) and at least one instrument seal (for sealing the cannula when a medical instrument is inserted through the seal assembly). Preferably, the seal assembly has a body with a flange which can be snapped onto the cannula before use, and readily removed after use. Also preferably, the flapper valve has an over-centered hinge. In other embodiments, the invention is a seal assembly which includes at least one double instrument seal including a sacrificial flange and a sealing flange, and optionally also a flapper valve. The sealing flange seals the cannula when a medical instrument is inserted through the seal assembly even when the sacrificial flange has been cut during insertion of the instrument. In other embodiments, the invention is a system including a reusable cannula, and a disposable seal assembly of any of the described types which can be snapped onto the cannula before use and readily removed after use.
摘要翻译：一种与可重复使用的套管一起使用的一次性密封组件，其中密封组件设计成在单次医疗过程期间与插管一起使用，并且在多个医疗程序期间将插管设计为多次使用（每次都使用不同的密封组件）。密封组件包括挡板阀流体密封件（当没有医疗器械通过密封组件插入时用于密封套管）和至少一个仪器密封件（当医疗器械通过密封组件插入时，用于密封套管）。优选地，密封组件具有带有凸缘的主体，该凸缘可以在使用之前卡扣在套管上，并且在使用后容易地移除。还优选地，挡板阀具有过中心的铰链。在其他实施例中，本发明是一种密封组件，其包括至少一个双重仪器密封件，其包括牺牲凸缘和密封凸缘，以及可选地还包括挡板阀。当医疗器械插入密封组件时，密封法兰密封套管，即使在插入仪器期间牺牲法兰被切割时。在其他实施例中，本发明是一种包括可重复使用的插管和任何所述类型的一次性密封组件的系统，其可以在使用之前被卡扣在插管上并且在使用后容易地移除。

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