Heart Valve Prosthesis
First Claim
1. A heart valve prosthesis comprising three leaflets attached to an annulus, each leaflet having convexo-concave surfaces and a non-uniform thickness.
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Accused Products
Abstract
A heart valve prosthesis includes an annulus and a closing element having three leaflets. Hinge mechanisms are provided for attaching each leaflet to a top region of an interior surface of the annulus. In one example, the leaflets have convexo-concave surfaces and a non-uniform thickness. In another example, the top region of the interior surface has two sets of ledges which can be formed by intersecting three pairs of cylindrical surfaces. Ledges within each set are evenly spaced about the interior surface, a ledge in one set alternating with a ledge in the other set. In a further example, a bottom region of the interior surface is formed by intersecting three cylindrical surfaces.
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Citations
24 Claims
- 1. A heart valve prosthesis comprising three leaflets attached to an annulus, each leaflet having convexo-concave surfaces and a non-uniform thickness.
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11. A heart valve prosthesis, comprising:
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a. a closing element having three flaps; b. an annulus for housing the closing element, the annulus having an interior surface with a top region; c. a first set of ledges at the top region, evenly disposed about the interior surface; and b. a second set of ledges at the top region, evenly disposed about the interior surface, each ledge in the second set alternating with a ledge in the first set. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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- 20. A leaflet shaped for a tri-leaflet artificial heart valve, having a concave surface, a convex surface and a non-uniform thickness.
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24. A heart valve prosthesis, comprising:
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a. a closing element having three flaps; b. an annulus for housing the closing element, the annulus having an annulus axis and an interior surface; c. three ledges formed at the interior surface by three intersecting cylindrical surfaces evenly disposed within the annulus, each cylindrical surface having a cylindrical axis displaced from the annulus axis; and d. two sockets at each ledge for attaching said flaps to the interior surface.
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Specification