Patent ID: 8252017

Claim:
A medical device for capturing emboli in a blood vessel, the medical device comprising: a guiding member including a lumen sized to receive an advancement member, an outer surface, a distal end, and a plurality of control wire openings proximal to the distal end; a filter portion having a tubular geometry and a plurality of filter openings, the tubular geometry having a first end opening at a first end and a second end opening at a second end, the first end extending distally from the guiding member, the second end being fixedly attached to the advancement member; a plurality of control wires attached to the filter portion and extending proximally from the first end of the filter portion, wherein the plurality of control wires are received into the lumen of the guiding member through the plurality of control wire openings; and wherein the filter portion has a non-everted state and an everted state, the filter portion being configured to evert by pulling the first end back over the filter portion so that the filter portion forms a proximally facing concave geometry with the first end forming a proximally facing opening; and wherein the everted state of the filter portion has an expanded state and a collapsed state, wherein the first end of the filter portion is drawn against the outer surface of the guiding member by proximal movement of the control wires and the second end of the filter portion is disposed within the lumen of the guiding member when the filter portion is in the collapsed state, such that the distal end of the guiding member is disposed within the concave geometry of the filter portion when the filter portion is in the collapsed state.