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US 8,034,061 B2Granted
Percutaneous catheter directed intravascular occlusion devices
AssigneeAGA Medical Corporation
InventorsKurt Amplatz, Xiaoping Gu, John C. Oslund
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AssigneeAGA Medical Corporation
InventorsKurt Amplatz, Xiaoping Gu, John C. Oslund
Estimating the term…
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.
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.
A collapsible medical device, 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 having 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 transition segment whose diameter is smaller than both the first and second diameters 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, wherein the medical device has the dimensions as identified in FIG. 5A of the drawings hereof and quantified in Table I of the specification.
A collapsible medical device 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 having 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, wherein the transition segment is at least partially recessed within the cylindrical shaped portion, and wherein the device is 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.
Dependencies are inferred from the claim text.