PERCUTANEOUS CATHETER DIRECTED INTRAVASCULAR OCCLUSION DEVICES

摘要

Abstract The present invention provides an improved vascular occlusion device having improved flexibility and retention of the type fabricated from braided tubular metal 5 fabric having an expanded preset configuration and an elongated collapsed reduced diameter configuration for delivery through a catheter to a treatment site and shaped to create an occlusion of an abnormal opening in a body organ or vessel, the woven metal fabric having a memory property whereby the medical device tends to return to said expanded preset configuration when unconstrained. The device further including 10 at least one disk portion adjacent a body cylindrical portion formed from the fabric and having a transition diameter between the disk and cylindrical portion, significantly smaller than the diameter of the disk and the diameter of the cylindrical portion. 4766828_1 (GHMatters) P64553.AU.1