Patent ID: 6540767
Filing Date: 2003-04-01
Classification: A61F

Abstract:
A thrombus filter element for placement within a blood vessel lumen defined by a blood vessel wall comprising: a plurality of struts comprising a shape memory material;a plurality of anchoring elements disposed on a plurality of struts, wherein said anchoring elements engage said blood vessel wall; wherein the shape memory material has a selected temperature at which the struts change shape; wherein the struts are divided into a first grouping and a second grouping; wherein said first grouping and second grouping of said plurality of struts attach to a body portion; wherein said body portion includes at least one aperture, said second grouping of said struts radiate from within said aperture, said body portion further including a hooking means, wherein said hooking means comprises of a conducting material; and wherein said second grouping of said plurality of struts retract within said aperture when the temperature of said shape-memory material is generally lower than body temperature.