公开(公告)号：US07846134B1

公开(公告)日：2010-12-07

申请号：US11821326

申请日：2007-06-22

申请人： Timothy Nadolski ,  Carl Awh ,  Jeffrey R. Diekemper

发明人： Timothy Nadolski ,  Carl Awh ,  Jeffrey R. Diekemper

IPC分类号： A61M5/178

CPC分类号： A61F9/0133 ,  A61B17/3421 ,  A61B17/3431 ,  A61F9/007 ,  B33Y80/00

摘要： A flexible walled cannula apparatus and method of use comprising a uniquely deformable cannula tube and head in combination with a uniquely shaped obturator which allows the use of heretofore unusable larger gauge surgical instruments while providing a self sealing incision. The apparatus and method of use provides a preassembled obturator and cannula assembly with which the surgeon forms an incision or channel, inserts the cannula tube, and through the cannula inserts surgical instruments to perform a surgical operation. The apparatus and method of use is especially suited for ophthalmic surgical operations. Alternative embodiments for use with even larger diameter instruments utilize a uniquely designed valve having leaflets which prevent bodily or other fluid leakage from the cannula when an instrument is not inserted.

摘要翻译： 柔性壁套管装置和使用方法包括独特可变形的插管管和头部，其与独特形状的闭孔器组合，允许使用迄今为止不可用的较大规格的外科器械，同时提供自密封切口。 该装置和使用方法提供预组装的闭孔器和插管组件，外科医生通过该装配体和插管组件形成切口或通道，插入套管管，并通过套管插入外科器械以执行外科手术。 该装置和使用方法特别适用于眼科手术。 用于甚至更大直径的仪器的替代实施例使用具有独特设计的瓣膜，其具有小叶，当仪器未被插入时防止身体或其它液体从套管泄漏。