Aortic valve stent graft
AssigneeCook Medical Technologies LLC
InventorTimothy A M Chuter
Life of this patent
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Abstract
An implantable endoluminal prosthesis for replacing a damaged aortic valve is provided. In one embodiment, the prosthesis includes a balloon-expandable stent, a tubular conduit that extends into the ascending aorta, and a self-expanding stent. The tubular conduit extends across the balloon-expandable stent. The tubular conduit includes an artificial valve. The self-expanding stent extends across the tubular conduit into the ascending aorta. The balloon-expandable stent, the tubular conduit, and the self-expanding stent are coupled to provide unidirectional flow of fluid into the aorta and further into the coronary arteries. Also provided is a method for implanting the endoluminal prosthesis.
Claims14
An endoluminal prosthesis comprising:
- a first stent;
- a tubular conduit comprising an aortic valve replacement, wherein at least a portion of the tubular conduit overlaps at least a portion of the first stent;
- and
- a second stent that overlaps at least a portion of the tubular conduit,
- wherein ones of the first stent, tubular conduit, and the second stent are coaxially arranged for unidirectionally passing fluid through the prosthesis, and
- wherein the first and second stents lack an overlapping relationship with one another,
- wherein the first stent and the tubular conduit are configured to allow fluid to pass unidirectionally therethrough,
- wherein a distal end of the tubular conduit terminates at a location between proximal and distal ends of the second stent, and
- wherein the second stent comprises at least one uncovered region, distal to the aortic valve replacement, to allow fluid to pass radially outside of an outer perimeter of the second stent after passing through the aortic valve replacement.
A prosthesis for replacing an aortic valve comprising:
- at least first, second and third tubular members,
- wherein the second tubular members comprises a valve,
- and wherein ones of the first tubular member, second tubular member, and the third tubular member are coaxially arranged for unidirectionally passing fluid through the prosthesis
- wherein the first tubular member exerts a force upon the coronary sinus and the third tubular member exerts a force upon the ascending aorta,
- wherein the first tubular member and the second tubular member are configured to allow fluid to pass unidirectionally therethrough,
- wherein a distal end of the second tubular member terminates at a location between proximal and distal ends of the third tubular member, and
- wherein the third tubular member comprises a proximal zone having a first diameter and a distal zone having a second diameter, where the first diameter is narrower than the second diameter.
Dependencies are inferred from the claim text.