Methods and apparatus for conformably sealing prostheses within body lumens
AssigneeMedtronic, Inc.
InventorsThomas J. Fogarty, Jay A. Lenker, Brian J. Cox, Allan R. Will, Kirsten Freislinger
Life of this patent
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Abstract
A tubular prosthesis is implanted at a target location within a body lumen by transluminally placing and embedding an expansible prosthesis body within a sealing layer. The sealing layer occludes at least a circumferential band within an interface region between the prosthesis body and the inner wall of the body lumen, thus providing for blockage of body lumen flow past the prosthesis. The sealing layer may be introduced prior to or simultaneously with the prosthesis body. A tubular prosthesis may be implanted in blood vessels, particularly to protect aneurysms.
Claims14
In a method for implanting a tubular prosthesis in a body lumen of a type wherein the tubular prosthesis is expanded in situ so that an exterior surface of the prosthesis engages an inner wall of the body lumen over an interface region, the improvement comprising expanding the tubular prosthesis, in a sealing layer disposed in at least a portion of the interface region, the interface region having varying spacing between the prosthesis and the inner wall of the body lumen, the sealing layer conforming to the varying spacing to occlude the interface region.
In a method for implanting a tubular prosthesis in a body lumen of a type wherein the tubular prosthesis is expanded in situ so that an exterior surface of the prosthesis engages an inner wall of the body lumen over an interface region, the improvement comprising expanding the tubular prosthesis, in a sealing layer disposed in at least a portion of the interface region, wherein the sealing layer is a microporous silicone rubber mesh.
A method for implanting a tubular prosthesis in a body lumen, said method comprising:
- introducing a sealing layer over an interface region along an interior wall of the body lumen;
- and
- expanding a tubular prosthesis within the body lumen, the interface region having a varying spacing between the tubular prosthesis and the body lumen, the sealing layer conforming to the varying spacing so that the sealing layer provides a seal between an exterior surface of the tubular prosthesis and the interior wall of the body lumen.
A method for implanting a tubular prosthesis in a body lumen, said method comprising:
- introducing a sealing layer over an interface region along an interior wall of the body lumen by transluminally positioning a distal end of a catheter at the interface region within the body lumen and applying a fluid phase sealing material from the distal end of the catheter over said interface region;
- and
- expanding a tubular prosthesis within the body lumen so that the sealing layer provides a seal between an exterior surface of the tubular prosthesis and the interior wall of the body lumen.
Dependencies are inferred from the claim text.