公开(公告)号：US06540768B1

公开(公告)日：2003-04-01

申请号：US09501543

申请日：2000-02-09

申请人： Pedro L. Diaz ,  Mark L. Pomeranz ,  Robert Letendre ,  Mark Inderbitzen

发明人： Pedro L. Diaz ,  Mark L. Pomeranz ,  Robert Letendre ,  Mark Inderbitzen

IPC分类号： A61M2900

CPC分类号： A61F2/013 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/005 ,  A61F2230/0067 ,  A61F2230/008 ,  A61F2230/0093

摘要： A removable vascular filter system for blocking micro- and macro-emboli while allowing the continued perfusion of blood comprises a filter membrane positioned on a guidewire, wherein a free end of the membrane sits tightly against the guidewire when the filter membrane is in a collapsed state and wherein the filter has a means for deploying the filter membrane to assume a position substantially normal to the longitudinal axis of the guidewire. The filter membrane is comprised of a fine mesh material which has a pore size capable of blocking emboli while allowing continued blood flow, a preferred embodiment of which comprises regularly spaced, laser-formed holes, and in which the membrane has a scalloped proximal profile.

摘要翻译： 用于阻止微血栓和大栓塞同时允许血液持续灌注的可移除的血管过滤系统包括定位在导丝上的过滤膜，其中当过滤膜处于收缩状态时，膜的自由端紧紧地靠在导丝上 并且其中所述过滤器具有用于将所述过滤膜展开为基本上垂直于所述导丝的纵向轴线的位置的装置。 过滤膜由具有能够阻止栓塞同时允许持续血液流动的孔径的细网状材料组成，其优选实施例包括规则间隔的激光形成的孔，并且其中膜具有扇形近端轮廓。