Geometric prosthetic heart valves
First Claim
1. A prosthetic heart valve comprising:
- a film defining a plurality of leaflets, each leaflet having a shape, a leaflet free edge, a pair of opposing leaflet sides, and a leaflet base opposite the leaflet free edge; and
a leaflet frame having a generally tubular shape, the leaflet frame defining a plurality of leaflet windows formed by a by a plurality of frame elements, the plurality of leaflet windows defining a plurality of attachment zones that define the shapes of the plurality of leaflets;
wherein the plurality of leaflet attachment zones each have substantially the shape of an isosceles trapezoid having two leaflet window sides along which the pairs of opposing leaflet sides are coupled to the attachment zones and a leaflet window base along which the leaflet bases are coupled to the attachment zones, wherein the two leaflet window sides of each of the leaflet attachment zones diverge from the leaflet window bases, and wherein the leaflet window bases are each substantially flat.
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Accused Products
Abstract
Described embodiments are directed toward prosthetic heart valve leaflets of particular shapes that control bending character. In accordance with an embodiment, a prosthetic heart valve comprises a leaflet frame having a generally tubular shape with attached film. The leaflet frame defines a plurality of leaflet windows. The film defines at least one leaflet extending from each of the leaflet windows. Each leaflet attachment zone on the leaflet frame has substantially the shape of an isosceles trapezoid having two leaflet sides, a leaflet base and a leaflet free edge opposite the leaflet base. The two leaflet sides diverge from the leaflet base, wherein the leaflet base is substantially flat.
128 Citations
51 Claims
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1. A prosthetic heart valve comprising:
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a film defining a plurality of leaflets, each leaflet having a shape, a leaflet free edge, a pair of opposing leaflet sides, and a leaflet base opposite the leaflet free edge; and a leaflet frame having a generally tubular shape, the leaflet frame defining a plurality of leaflet windows formed by a by a plurality of frame elements, the plurality of leaflet windows defining a plurality of attachment zones that define the shapes of the plurality of leaflets; wherein the plurality of leaflet attachment zones each have substantially the shape of an isosceles trapezoid having two leaflet window sides along which the pairs of opposing leaflet sides are coupled to the attachment zones and a leaflet window base along which the leaflet bases are coupled to the attachment zones, wherein the two leaflet window sides of each of the leaflet attachment zones diverge from the leaflet window bases, and wherein the leaflet window bases are each substantially flat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification