Repositionable and recapturable vascular stent/graft

• US 6,932,837 B2
• Filed: 08/27/2002
• Issued: 08/23/2005
• Est. Priority Date: 03/27/2000
• Status: Expired due to Fees

• Current Assignee: AGA Medical Corporation (Abbott Laboratories)
• Original Assignee: AGA Medical Corporation (Abbott Laboratories)
• Inventors: Afremov, Michael, Amplatz, Kurt
• Primary Examiner(s): HO, UYEN T
• Application Number:
  US10/228,230
• Publication Number:
  US 20030023299A1
• Time in Patent Office: 1,092 Days
• Field of Search: 623 11- 113, 623 124- 126, 623/1.31, 623/1.35, 623/1.37, 623 15- 153, 623/1.15, 606/194, 606/200
• US Class Current: 623/1.15
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/856 Single tubular stent with a side portal passage
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2002/061 provided with means for allowing access to secondary lumens
• CPC Class Codes: A61F 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2002/9528 for retrieval of stents
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers

Abstract

A collapsible medical device and associated method for grafting a lumen of selected organs and vessels, wherein the medical device is shaped from a shape memory fabric. The device is preferably made from a continuous tubular fabric and each end terminates with an open end for passage there through. Each end further includes a securing member attached to an outer perimeter of the end, wherein a substantial plane formed by the perimeter intersects the longitudinal axis of the tubular fabric at either an acute or obtuse angle. The fabric may be heat treated within a mold in order to substantially set a desired shape of the device. The securing member may also attach to the end of a guide wire or delivery catheter, thereby allowing deployment and later retrieval after deployment of the device.

Claims

1. A collapsible medical device, comprising a fabric including a plurality of woven strands, said medical device having a proximal end and a distal end, each end having permanently attached thereto a clamp for securing the woven strands, thereby inhibiting unraveling of the fabric, said at least one of the clamps including a means for releasable attachment thereof to a delivery device, said medical device having a relaxed configuration, wherein said relaxed configuration includes a passageway extending through a central portion between each end, and further including an aperture formed in a side portion of the relaxed configuration, said medical device further having a collapsed configuration for delivery through a channel in a patient'"'"'s body.

2. The device according to claim 1, wherein both ends include markers spaced a predetermined distance around an edge of each of said ends.

3. The device according to claim 1, wherein said medical device is formed from a metal fabric consisting of a plurality of woven metal strands.

4. The device according to claim 1, wherein said clamps are aligned on an outer edge of each of said ends.

5. The device as recited in claim 1, wherein said relaxed configuration is in a bent shape.

6. A collapsible medical device, comprising a fabric including a plurality of woven strands, said medical device having a proximal end and a distal end, each end having permanently attached thereto a clamp member for inhibiting unraveling of the fabric, at least one of the clamp members having means for releasable attachment to a delivery device, said medical device having a relaxed configuration, wherein said relaxed configuration includes a passageway extending through a central portion between each end, and further wherein at least one end of said relaxed configuration has a width greater than the width of a central portion of the relaxed configuration, said medical device further having a collapsed configuration for delivery through a channel in a patient'"'"'s body.

7. The device according to claim 6, wherein at least one end includes markers spaced a predetermined distance around an edge of said at least one end.

8. The device according to claim 6, wherein both ends include markers spaced a predetermined distance around an edge of each of said ends.

9. The device according to claim 6, wherein said medical device is formed from a metal fabric consisting of a plurality of woven metal strands.

10. The device according to claim 6, wherein said clamp members are aligned on an outer edge of each of said ends.