PROSTHETIC VALVES, FRAMES AND LEAFLETS AND METHODS THEREOF
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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.
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Citations
50 Claims
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1-4. -4. (canceled)
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5. A prosthetic heart valve comprising:
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a leaflet frame having a generally tubular shape, the leaflet frame defining a plurality of leaflet windows; and an outer frame having a generally tubular shape, the leaflet frame and outer frame coupled at least in part by a contiguous portion of the film, at least a portion of the contiguous portion of the film being contained between and coupling the leaflet frame and outer frame that minimizes relative movement and prevents contact between the leaflet frame and outer frame, wherein the film defines a leaflet extending from each of the leaflet windows.
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6-7. -7. (canceled)
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8. A prosthetic valve, comprising:
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a leaflet frame; and a plurality of leaflets coupled to the leaflet frame, each leaflet including a free edge and a base, wherein the base of each leaflet is truncated in which the leaflet in cross section shows a line in an alpha plane onto the leaflet frame. - View Dependent Claims (9, 10, 11, 12)
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13-16. -16. (canceled)
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17. 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 (18, 19, 20)
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21-47. -47. (canceled)
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48. A prosthetic heart valve comprising
a plurality of leaflets, each leaflet including a leaflet free edge and a leaflet base opposite from the leaflet free edge, each leaflet having a planar zone in a central region, wherein the planar zone is substantially planar, wherein the planar zone defines a shape having an area, wherein the area is larger nearer the leaflet base than the leaflet free edge, wherein the planar zone extends to the leaflet free edge defining a truncated top having a top width as measured along the leaflet free edge greater than zero, each leaflet having a vertical coaptation zone defining a coaptation height as a length of the coaptation zone measured in an axial direction, wherein the coaptation height is greater than zero.
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50. (canceled)
Specification