Patent ID: 6447530
Filing Date: 2002-09-10
Classification: A61F

Abstract:
An improved recoverable filter comprising:a. a plurality of thrombosis filtering means when deployed in a first direction for retaining thrombosis material moving in a second direction; b. a plurality of positioning means coupled to said plurality of thrombosis filtering means, said plurality of positioning means having an associated plurality of wall engaging means deployed in said second direction for engaging an associated inner lumen wall and for restricting movement in said second direction; and c. retracting means for retracting said plurality of positioning means and said plurality of thrombosis filtering means in response to externally percutaneously applied controls for allowing removal in said second direction; wherein said retracting means includes holding means for holding said plurality of positioning means steady in a longitudinal direction; and collapsing means for forcing said plurality of positioning means toward the first direction.