PERCUTANEOUS CATHETER DIRECTED INTRAVASCULAR OCCLUSION DEVICES
First Claim
1. A collapsible medical device consisting of a single layer of tubular metal fabric, said metal fabric comprising:
- a plurality of braided metal strands and having a proximal end and a distal end, the metal fabric having a collapsed configuration for delivery through a channel in a patient'"'"'s body and a double disk shaped expanded preset configuration for substantially creating an occlusion of an opening in a body, the metal fabric in its expanded configuration having two expanded disk end portions and a reduced diameter middle portion disposed between the two disk end portions, at least one of the disk end portions and middle portion being connected by a reduced diameter portion that is smaller in diameter than both the disk end portions and middle portion.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides an improved vascular occlusion device having improved flexibility and retention of the type fabricated from braided tubular metal 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 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.
29 Citations
25 Claims
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1. A collapsible medical device consisting of a single layer of tubular metal fabric, said metal fabric comprising:
- a plurality of braided metal strands and having a proximal end and a distal end, the metal fabric having a collapsed configuration for delivery through a channel in a patient'"'"'s body and a double disk shaped expanded preset configuration for substantially creating an occlusion of an opening in a body, the metal fabric in its expanded configuration having two expanded disk end portions and a reduced diameter middle portion disposed between the two disk end portions, at least one of the disk end portions and middle portion being connected by a reduced diameter portion that is smaller in diameter than both the disk end portions and middle portion.
- View Dependent Claims (2, 3, 4, 11, 12, 15, 16, 17, 18, 19, 20, 22, 23, 25)
- 5. A collapsible medical device consisting of a single layer of tubular metal fabric, said metal fabric comprising a plurality of braided metal strands and having a proximal end and a distal end, said metal fabric having an expanded preset configuration shaped to create an occlusion of an opening in a body, said expanded preset configuration being deformable to a lesser cross-sectional dimension for delivery through a channel in a patient'"'"'s body, wherein the expanded preset configuration comprises two expanded diameter disk portions and a reduced diameter middle portion, said middle portion having a length approximating a thickness of a patient'"'"'s atrial septum, said middle portion and at least one of the disk portions being connected by a connection portion having a diameter smaller than both the middle and disk portions, the metal fabric having a memory property whereby the metal fabric tends to return to said expanded preset configuration when unconstrained.
Specification