A device for capturing emboli during treatment of a stenotic lesion in a body vessel is disclosed. The device comprises a base having expanded and collapsed states, and proximal and distal portions. The distal portion has a support portion configured to deploy in the body vessel when the base is in the expanded state. The device further comprises a filter portion disposed on the distal portion of the base. The filter portion includes a lip extending to a filter body to a filter end. The filter portion is configured to engage the support portion when deployed to define an opening of the filter portion for capturing emboli. The device further comprises a collector through which the base is slideably disposed for delivery and retrieval of the device.
