Patent ID: 7909847
Filing Date: 2011-03-22
Classification: A61F

Abstract:
1. A vessel filter comprising a first region and a second region, the filter movable between a collapsed position for delivery to the vessel and an expanded position for placement within the vessel, the first region having a first set of struts forming a first mounting portion and a first filter portion opening in a first direction, the filter portion having a first converging region at a first portion to direct particles toward the center of the filter, the mounting portion being flared in the expanded position to have a transverse dimension increasing toward a second portion opposite the first portion, the second region having a second set of struts forming a second mounting portion being flared in the expanded position and opening in the first direction, a plurality of spaced apart struts extending between the first and second regions and being substantially parallel to a longitudinal axis of the filter in the collapsed and expanded positions of the filter and remaining in the same configuration in the collapsed and expanded positions of the filter, the spaced apart struts having a proximal portion and a distal portion, the distal portion including a first tubular portion and the proximal portion including a second tubular portion, the second set of struts integral with and extending from the second tubular portion and the first set of struts integral with and extending from the first tubular portion.