Patent ID: 8034061

Claim:
A collapsible medical device consisting of a single layer of metal fabric, the metal fabric comprising a plurality of metal strands woven into a tubular woven metal fabric having a proximal end and a distal end, said tubular woven metal fabric having an expanded preset configuration shaped to create an occlusion of an opening in a body, said expanded preset configuration comprising a disk shaped portion of a first diameter on at least one of the proximal and distal ends and an adjacent cylindrical shaped portion of a second diameter, the disk and cylindrical portions being connected by a flexible transition segment whose diameter is smaller than both the first and second diameters such that the disk shaped portion pivots about the transition segment, and the device being deformable to a lesser cross-sectional dimension for delivery through a channel in a patient's body, the woven metal fabric having a memory property whereby the medical device tends to return to said expanded preset configuration when unconstrained.