Vein filter
First Claim
1. A vessel filter comprising a body made from a single tube, the tube cut to create a plurality of elongated struts forming a filter region and a mounting region having a greater transverse dimension than a transverse dimension of the filter region, the mounting region including a plurality of vessel engaging hooks, the hooks having a vessel penetrating tip pointing in a direction toward the filter region, a plurality of teeth for engaging a vessel, and a heel extending beyond the teeth in a direction opposite the direction of the penetrating tip, and the teeth have distal penetrating ends pointing in a distal direction and in a direction toward the penetrating tip of an adjacent hook, wherein a distal end of the heel of one hook is longitudinally aligned with the penetrating tip of an adjacent hook.
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Accused Products
Abstract
A vessel filter 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 has a filter portion having a converging region to direct particles toward the center of the filter and includes a plurality of spaced apart filter struts. The struts each have a strut height defined as a distance between a first wall and a second wall. A plurality of hooks are at the second region, the hooks having a vessel penetrating tip and a width greater than the width of the strut from which it extends such that the penetrating tip portion of the hook extends beyond the first wall.
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Citations
11 Claims
- 1. A vessel filter comprising a body made from a single tube, the tube cut to create a plurality of elongated struts forming a filter region and a mounting region having a greater transverse dimension than a transverse dimension of the filter region, the mounting region including a plurality of vessel engaging hooks, the hooks having a vessel penetrating tip pointing in a direction toward the filter region, a plurality of teeth for engaging a vessel, and a heel extending beyond the teeth in a direction opposite the direction of the penetrating tip, and the teeth have distal penetrating ends pointing in a distal direction and in a direction toward the penetrating tip of an adjacent hook, wherein a distal end of the heel of one hook is longitudinally aligned with the penetrating tip of an adjacent hook.
- 7. A vessel filter comprising a first region and a second region, 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 to direct particles toward a center of the filter, the first region including a plurality of spaced apart filter struts, the struts each having a first width defined as a distance between a first wall and a second wall and having a longitudinal axis, a plurality of hooks at the second region, the hooks having a vessel penetrating tip and a heel, the heel having a distal end, the penetrating tip of one hook longitudinally aligned with the distal end of the heel of an adjacent hook and wherein the struts each have a reduced width area transitioning into the hook, the reduced width area providing a space to accommodate the heel of an adjacent hook.
Specification