公开(公告)号：US20130138140A1

公开(公告)日：2013-05-30

申请号：US13730457

申请日：2012-12-28

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Karla Weaver ,  Sally Thornton

IPC: A61F2/01

CPC classification number: A61F2/01 ,  A61F2002/016 ,  A61F2230/005 ,  A61F2230/0067

Abstract: Intravascular filtering devices for placement within a blood vessel are disclosed. An intravascular filter in accordance with the present invention may include a plurality of elongated filter legs biased to radially expand from a collapsed position to a conical-shaped position when deployed in a blood vessel. Each of the filter legs may include a hook region configured to engage the vessel wall. The filter legs may vary in length and/or cross-sectional diameter. In certain embodiments, the dimensions and/or orientation of the hook regions can be configured to allow the filter device to be collapsed into a relatively small introducer catheter or sheath.

Abstract translation: 公开了用于放置在血管内的血管内过滤装置。 根据本发明的血管内过滤器可以包括多个细长的过滤器支腿，当被展开在血管中时，所述多个细长的过滤器腿被偏压以从收缩位置径向膨胀到圆锥形位置。 每个过滤腿可以包括构造成接合血管壁的钩区域。 过滤腿可以在长度和/或横截面直径上变化。 在某些实施例中，钩区域的尺寸和/或取向可以被配置成允许过滤器装置折叠成相对小的导引器导管或护套。