Aortic valve stent graft
First Claim
1. An endoluminal prosthesis having an inflow end and an outflow end that is downstream of the inflow end, the prosthesis comprising:
- a first stent at the inflow end of the prosthesis, wherein the first stent is configured to lie at least partially within a native valve annulus;
a tubular conduit comprising an aortic valve replacement, the aortic valve replacement positioned downstream of the first stent, wherein at least a portion of the tubular conduit overlaps at least a portion of the first stent; and
a second stent downstream of the first 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, andwherein 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 an outflow end of the tubular conduit terminates at a location between proximal and distal ends of the second stent,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,wherein the second stent 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, and there is a taper between the first and second diameters, andwherein the taper of the second stent is positioned at least partially downstream of the aortic valve replacement.
3 Assignments
0 Petitions
Accused Products
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.
134 Citations
14 Claims
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1. An endoluminal prosthesis having an inflow end and an outflow end that is downstream of the inflow end, the prosthesis comprising:
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a first stent at the inflow end of the prosthesis, wherein the first stent is configured to lie at least partially within a native valve annulus; a tubular conduit comprising an aortic valve replacement, the aortic valve replacement positioned downstream of the first stent, wherein at least a portion of the tubular conduit overlaps at least a portion of the first stent; and a second stent downstream of the first 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 an outflow end of the tubular conduit terminates at a location between proximal and distal ends of the second stent, 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, wherein the second stent 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, and there is a taper between the first and second diameters, and wherein the taper of the second stent is positioned at least partially downstream of the aortic valve replacement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A prosthesis for replacing an aortic valve, the prosthesis having an inflow end and an outflow end that is downstream of the inflow end, the prosthesis comprising:
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at least first, second and third tubular members, wherein the second tubular member comprises a valve, wherein the first tubular member is at the inflow end of the prosthesis and exerts a force upon the coronary sinus and the third tubular member is at the outflow end of the prosthesis and 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, 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, wherein there is a taper between the first and second diameters of the third tubular member, wherein an open mesh of the third tubular member allows fluid to pass radially outside of an outer perimeter of the third tubular member after passing through the valve, and wherein the taper of the third tubular member is positioned at least partially downstream of the valve. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification