A collapsible medical device (10) and associated method for occluding an abnormal opening in, for example, a body organ, wherein the medical device (10) is shaped from a shape memory metal fabric. The device is preferably made from a continuous tubular metal fabric and includes two outer occluding portions (12, 14), and a resilient central, spring-like interconnecting member (16). The device (10) includes a fastener (30, 32) for attaching to the end of a guide wire or delivery catheter.
