Abstract: A thrombus retrieval device (10) includes a flexible catheter (12), a retrieval wire (26) fixed to the distal end (14) of the catheter (12) and which extends out of the catheter (12) at first and second apertures in the wall of the catheter (12). A trap element (28) typically made of a porous fabric material, is attached to the catheter (12) from the distal end (14) across the location of the apertures. The trigger wire (26) can be pulled in a proximal direction, which causes the catheter (12) to twist so as to form a loop. The trap element (28), attached to the catheter at location in which it loops, forms a net for trapping thrombi or other obstructions within a patient's lumen.

Abstract: A clot removal device (10) includes a conical retrieval member (14) affixed to a wire (12) The conical retrieval member (14) has an apex (16) at its distal end, and a base that forms an opening (18) into a cavity The conical retrieval member (14) is formed from a thin sheet of Nitinol film, and expands into its conical configuration at body temperature The clot removal device (10) can be used physically to withdraw a blood clot (40) from a blood vessel (42) without requiring aspiration The member (14) can be pulled by a cord (90) to cause it to rewrap onto itself, in so doing to capture an obstruction such as a thrombus.

Abstract: A thrombus retrieval device (10) includes a flexible catheter (12), a retrieval wire (26) fixed to the distal end (14) of the catheter (12) and which extends out of the catheter (12) at first and second apertures in the wall of the catheter (12). A trap element (28) typically made of a porous fabric material, is attached to the catheter (12) from the distal end (14) across the location of the apertures. The trigger wire (26) can be pulled in a proximal direction, which causes the catheter (12) to twist so as to form a loop. The trap element (28), attached to the catheter at location in which it loops, forms a net for trapping thrombi or other obstructions within a patient's lumen.