PROSTHESES
First Claim
1. A valve prosthesis, comprising a generally tubular body adapted for placement proximate a mitral annulus, the tubular body having:
- a) a generally tubular upper portion adapted to substantially reside in the left atrium above the mitral annulus, the generally tubular upper portion having a first circumferential wall that is outwardly biased to urge against cardiac tissue of the left atrium;
b) a lower portion extending downwardly from the generally tubular upper portion, the lower portion being configured to substantially reside in the left ventricle below the mitral annulus, the lower portion being defined by an generally circumferential wall that extends downwardly from the generally tubular upper portion, the generally circumferential wall having a first circumferential end and a second circumferential end defining a circumferential extent therebetween, the generally circumferential wall extending along a posterior portion of the left ventricle, the first and second circumferential ends of the generally circumferential wall defining a circumferential gap therebetween, the circumferential gap being of sufficient circumferential extent to substantially prevent the prosthesis from interfering with the opening and closing of a native anterior mitral valve leaflet; and
c) at least one prosthetic valve leaflet disposed within the tubular body, the at least one prosthetic valve leaflet being configured to occupy at least a portion of an opening defined by the generally tubular upper portion and the lower portion.
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Accused Products
Abstract
The disclosure provides valve prostheses and methods of installation. One embodiment of the prosthesis has a generally tubular body adapted for placement proximate a mitral annulus. The tubular body has a generally tubular upper portion adapted to substantially reside in the left atrium above the mitral annulus. The generally tubular upper portion has a first circumferential wall that is outwardly biased to urge against cardiac tissue of the left atrium. The tubular body also includes a lower portion extending downwardly from the generally tubular upper portion, the lower portion being configured to substantially reside in the left ventricle below the mitral annulus. The lower portion of this embodiment can be defined by an generally circumferential wall that extends downwardly from the generally tubular upper portion. The generally circumferential wall has a first circumferential end and a second circumferential end, and defines a circumferential extent therebetween.
132 Citations
20 Claims
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1. A valve prosthesis, comprising a generally tubular body adapted for placement proximate a mitral annulus, the tubular body having:
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a) a generally tubular upper portion adapted to substantially reside in the left atrium above the mitral annulus, the generally tubular upper portion having a first circumferential wall that is outwardly biased to urge against cardiac tissue of the left atrium; b) a lower portion extending downwardly from the generally tubular upper portion, the lower portion being configured to substantially reside in the left ventricle below the mitral annulus, the lower portion being defined by an generally circumferential wall that extends downwardly from the generally tubular upper portion, the generally circumferential wall having a first circumferential end and a second circumferential end defining a circumferential extent therebetween, the generally circumferential wall extending along a posterior portion of the left ventricle, the first and second circumferential ends of the generally circumferential wall defining a circumferential gap therebetween, the circumferential gap being of sufficient circumferential extent to substantially prevent the prosthesis from interfering with the opening and closing of a native anterior mitral valve leaflet; and c) at least one prosthetic valve leaflet disposed within the tubular body, the at least one prosthetic valve leaflet being configured to occupy at least a portion of an opening defined by the generally tubular upper portion and the lower portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification