公开(公告)号：US5348537A

公开(公告)日：1994-09-20

申请号：US913859

申请日：1992-07-15

申请人： Steven P. Wiesner ,  Ketan P. Muni

发明人： Steven P. Wiesner ,  Ketan P. Muni

IPC分类号： A61M25/00 ,  A61M29/02

CPC分类号： A61M25/0075 ,  A61M25/104 ,  A61M2025/0063

摘要： A sealing element for dilatation and other inflatable catheters which is formed of a polymer matrix having a bearing surface and having incorporated, at least in the portion of the matrix forming the bearing surface, a lubricous material which swells upon contact with an aqueous based liquid. The bearing surface is adapted to engage the surface of a movable member such as a guidewire when the bearing surface expands from contact with aqueous based liquid. This engagement seals the interface between the movable member and the sealing element and prevents the passage of significant amounts of liquid through the interface between these elements.

摘要翻译： 用于膨胀的密封元件和其它可充气导管，其由具有支承表面的聚合物基体形成，并且至少在形成支承表面的基质部分中并入润滑材料，所述润滑材料在与基于水的液体接触时溶胀。 当轴承表面与基于水的液体的接触膨胀时，支承表面适于接合诸如导丝的可移动部件的表面。 该接合密封可移动构件和密封元件之间的界面，并防止大量液体通过这些元件之间的界面。