公开(公告)号：US06793661B2

公开(公告)日：2004-09-21

申请号：US10313848

申请日：2002-12-05

申请人： Bruce Hamilton ,  Mark S. Landman ,  Steve Martone ,  Timothy J. Mulhern

发明人： Bruce Hamilton ,  Mark S. Landman ,  Steve Martone ,  Timothy J. Mulhern

IPC分类号： A61M500

CPC分类号： A61B1/018 ,  A61B1/00082 ,  A61B1/00135 ,  A61B1/00142 ,  A61B1/00154 ,  A61B1/005 ,  A61B1/0051 ,  A61B1/012 ,  A61B1/267 ,  A61B1/2676 ,  A61B1/273 ,  A61B17/3421 ,  A61B2017/3486 ,  A61M25/1011

摘要： Methods and apparatus for inhibiting longitudinal expansion of a body portion of an endoscopic sheath during inflation of an inflatable member are disclosed. In one embodiment, a sheath assembly includes a body portion adapted to encapsulate a distal end of an insertion tube, and an inflatable member coupled to the body portion and adapted to be inflated radially outwardly from the body portion. The sheath assembly further includes an expansion-inhibiting mechanism coupled to at least one of the inflatable member and the body portion. The expansion-inhibiting mechanism advantageously inhibits a longitudinal expansion of the body portion during inflation of the inflatable member. The expansion-inhibiting mechanism may assume a variety of embodiments, including, for example, a non-compliant member, a longitudinally-stretched portion, a reinforcing spring member, a pressure relief device, or a suitable detent mechanism.

摘要翻译： 公开了用于在充气构件充胀期间抑制内窥镜护套的主体部分的纵向膨胀的方法和装置。 在一个实施例中，护套组件包括适于封装插入管的远端的主体部分和联接到主体部分并且适于从身体部分径向向外膨胀的可充气构件。 鞘组件还包括联接到可膨胀构件和主体部分中的至少一个的膨胀抑制机构。 膨胀抑制机构有利地在充气构件充胀期间抑制主体部分的纵向膨胀。 膨胀抑制机构可以采取各种实施例，包括例如不顺从构件，纵向拉伸部分，加强弹簧构件，压力释放装置或适当的制动机构。