Patent ID: 7749246

Claim:
A vessel filter comprising a tubular member having 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 mounting portion and a first filter portion having a first set of struts spaced apart and opening in a first direction and having a first converging region at a first portion to direct particles toward the center of the filter, the first mounting portion extending from the first filter portion and extending in the same first direction along its length to a first vessel contacting region, the first vessel contacting region having a first plurality of vessel engaging hooks, the first mounting portion being flared in the expanded position to have a transverse dimension increasing in a direction away from the first portion, the second region having a second mounting portion and a second filter portion having a second set of spaced apart struts and opening in the first direction and having a second converging region at a second portion to direct particles toward the center of the filter, the second mounting portion extending from the second filter portion and extending in the same first direction along its length to a second vessel contacting region, the vessel contacting region having a second plurality of vessel engaging hooks, the second mounting portion being flared in the expanded position to have a transverse dimension increasing in a direction away from the second portion, a plurality of spaced apart struts extending integrally with and between the first and second converging 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 vessel contacting regions of the first and second mounting portions extending in the first direction, 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.