Patent ID: 8092486

Claim:
A device for use in a lumen of a body vessel comprising: an elongate member having a proximal portion, and a distal portion, the distal portion having a distal region; and a working element carried on the distal region of the elongate member, the working element being configured to expand from a contracted delivery configuration to an expanded deployed configuration, the working element including a filter portion and an occlusive portion, the working element being further configured to be moveable in the deployed configuration during use between a filtering position and an occluding position, the filter portion being positioned to filter fluid flowing through the lumen of the vessel in the filtering position, the occlusive portion being positioned to occlude fluid flow through the lumen of the vessel in the occluding position, wherein the elongate member comprises a first shaft having proximal and distal ends and proximal and distal portions and a second shaft having proximal and distal ends and proximal and distal portions, wherein the first shaft includes a lumen and wherein the second shaft is contained within the lumen of the first shaft, and wherein the working element has distal and proximal ends and wherein the distal end of the working element is secured to the distal portion of the second shaft and wherein the proximal end of the working element is secured to the distal portion of the first shaft.