A vessel filter movable between a collapsed position for delivery to the vessel and an expanded position for placement within the vessel. The first region has a filter portion having a converging region to direct particles toward the center of the filter, the first region including a plurality of spaced apart elongated struts and a plurality of connecting struts extending at an angle from the elongated struts. The second region is flared in the expanded position to have a transverse dimension increasing toward a second end portion opposite the filter portion, the second region including a plurality of vessel engaging hooks. The hooks have a heel portion and a vessel penetrating portion, the vessel penetrating portion having a plurality of teeth and the heel portion extending further from the caudal end than the penetrating portion.