Percutaneous catheter directed intravascular occlusion devices

A collapsible medical device comprising a tubular metal fabric, the tubular metal fabric comprising:

• a plurality of braided metal strands and a proximal end and a distal end, the tubular metal fabric having a collapsed configuration for delivery through a channel in a patient's body and an expanded preset configuration for substantially creating an occlusion of an opening in the patient's body, the tubular metal fabric in the expanded preset configuration having two expanded disk end portions and a first reduced diameter portion disposed between the two expanded disk end portions, at least one of the two expanded disk end portions and the first reduced diameter portion being connected by a second reduced diameter portion that is smaller in diameter than both the two expanded disk end portions and the first reduced diameter portion.

A collapsible medical device comprising a tubular metal fabric, the tubular metal fabric comprising a plurality of braided metal strands and a proximal end and a distal end, the tubular metal fabric having an expanded preset configuration shaped to create an occlusion of an opening in a body, the expanded preset configuration being deformable to a constrained configuration having a lesser cross-sectional dimension, wherein the expanded preset configuration comprises two expanded diameter disk portions and a reduced diameter middle portion, the reduced diameter middle portion and at least one of the two expanded diameter disk portions being connected by a connection portion having a diameter smaller than both the reduced diameter middle portion and the two expanded diameter disk portions, the tubular metal fabric having a memory property whereby the tubular metal fabric tends to return from the constrained configuration to the expanded preset configuration when unconstrained.