GEOMETRIC CONTROL OF BENDING CHARACTER IN PROSTHETIC HEART VALVE LEAFLETS
First Claim
1. A prosthetic valve, comprising:
- a plurality of leaflets, each leaflet having two side regions and a central region between the two side regions, the central region having a shape that is different from that of the two side regions.
2 Assignments
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Accused Products
Abstract
Described embodiments are directed toward prosthetic valves having leaflets of particular shapes that control bending character. In accordance with an embodiment, a prosthetic valve comprises a plurality of leaflets. Each leaflet includes a central region and two side regions on opposite sides of the central region. The central region is defined by a shape substantially that of an isosceles triangle defined by two central region sides, the leaflet base and the leaflet free edge, wherein the two central region sides converge from the leaflet base, and wherein each of the two side regions have a shape substantially that of a triangle and each are defined by one of the central region sides, one of the leaflet sides, and the leaflet free edge.
34 Citations
34 Claims
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1. A prosthetic valve, comprising:
a plurality of leaflets, each leaflet having two side regions and a central region between the two side regions, the central region having a shape that is different from that of the two side regions. - View Dependent Claims (2, 3, 4)
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5. A prosthetic valve, comprising:
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a leaflet frame having a generally tubular shape, the leaflet frame defining a plurality of leaflet windows wherein each of the leaflet windows includes two leaflet window sides, a leaflet window base, and a leaflet window top; and a film coupled to the leaflet frame and defining at least one leaflet extending from each of the leaflet windows, wherein each leaflet has substantially the shape of an isosceles trapezoid having two leaflet sides, a leaflet base and a free edge opposite the leaflet base, wherein the two leaflet sides diverge from the leaflet base, wherein the leaflet base is substantially flat, wherein the leaflet base is coupled to the window base and wherein each of the two leaflet sides are coupled to one of the two window sides. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A prosthetic valve, comprising:
a plurality of leaflets, each leaflet having a shape substantially that of an isosceles trapezoid having two leaflet sides, a leaflet base, and a free edge opposite the leaflet base, wherein the two leaflet sides diverge from the leaflet base. - View Dependent Claims (27, 28)
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29. A prosthetic valve, comprising:
a plurality of leaflets, wherein each leaflet includes a central region and two side regions on opposite sides of the central region, wherein the central region is defined by a shape substantially that of an isosceles triangle defined by two central region sides, a leaflet base and a leaflet free edge, wherein the two central region sides converge from the leaflet base, and wherein each of the two side regions have a shape substantially that of a triangle and each are defined by one of the central region sides, one of the leaflet sides, and the leaflet free edge. - View Dependent Claims (30)
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31. A method of forming a prosthetic heart valve, comprising:
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providing a leaflet frame having a generally tubular shape, the leaflet frame defining a plurality of leaflet windows wherein each of the leaflet windows includes two leaflet window sides, a leaflet window base, and a leaflet window top; providing a film; wrapping the film about the leaflet frame bringing more than one layer of the film into contact with additional layers of the film defining at least one leaflet extending from each of the leaflet windows, wherein each leaflet has substantially a shape of an isosceles trapezoid having two leaflet sides, a leaflet base and a free edge opposite the leaflet base, wherein the two leaflet sides diverge from the leaflet base, wherein the leaflet base is substantially flat, wherein the leaflet base is coupled to the window base and wherein each of the two leaflet sides are coupled to one of the two window sides providing a generally annular support structure; and bonding the layers of film to itself and to the leaflet frame. - View Dependent Claims (32, 33, 34)
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Specification