Patent ID: 8696700
Filing Date: 2014-04-15
Classification: A61F

Abstract:
1. A vessel filter comprising a first region and a second region and a midpoint defined on a longitudinal axis of the filter and defined as a point equidistant from a proximalmost end of the filter and a distalmost end of the filter, the filter movable between a collapsed position for delivery to a vessel and an expanded position for placement within the vessel, the first region having a filter portion having a converging region at a first end portion to direct particles toward a center of the filter, the first region including a plurality of longitudinally extending struts extending from the converging region, the plurality of longitudinally extending struts extending longitudinally through the first region and into the second region, the longitudinally extending struts being unconnected proximal of the midpoint such that the longitudinally extending struts are unconnected between the converging region and the midpoint, the second region being flared in the expanded position to have a transverse dimension increasing toward a second end portion opposite the first end portion, the second region including a vessel engaging portion at the second end portion, a first set of connecting struts extending from a distal portion of the longitudinally extending struts, the first set of connecting struts including a plurality of connecting struts each emanating from one of the longitudinally extending struts and extending toward a distal portion of the filter, each of the connecting struts of the first set extending toward another of the connecting struts from the first set to thereby join adjacent longitudinally extending struts distal of the midpoint at a terminal end of the second end portion to thereby join a distal end of the longitudinally extending struts, and a second set of connecting struts extending from adjacent longitudinally extending struts in a direction opposite the direction the first connecting struts extend, each of the connecting struts of the second set extending toward another of the connecting struts from the second set to thereby join adjacent connecting struts of the second set at a joined region distal of the midpoint and pointing toward a proximal portion of the filter.