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US 2018/0021128 A1Published application
Methods for improved prosthetic heart valve with leaflet shelving
AssigneeW. L. Gore & Associates, Inc.
InventorsWilliam C. Bruchman, Cody L. Hartman
Life of this patent
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Abstract
Described embodiments are directed toward prosthetic valve leaflets of particular configurations that control bending character. In embodiments provided herein, valve leaflets are operable to bend along a base of the valve leaflets.
Claims20
A prosthetic valve comprising:
- a support structure having a longitudinal axis and defining a plurality of leaflet attachment zones between a plurality of commissure posts;
- a plurality of leaflets extending from the leaflet attachment zones and coupled to the support structure, each of the leaflets extending between a base and a free edge, the base having a first side, a second side opposite the first side, and a center between the first and second sides, the first and second sides of the base defining a first radial distance from the longitudinal axis of the support structure and the center defining a second radial distance from the longitudinal axis of the support structure that is less than the first radial distance.
A prosthetic valve comprising:
- a support structure including a plurality of commissure posts, defining plurality of leaflet attachment zones between the commissure posts, and having a longitudinal axis and a plurality of chords defined between adjacent ones of the commissure posts;
- a plurality of leaflets, each of the plurality of leaflets extending from one of the leaflet attachment zones and having a free edge and a base opposite the free edge that is coupled to the support structure along a straight base segment, each of the leaflets further having a planar zone including a planar zone base that is coincident with the straight base segment, the straight base segment being a substantially straight line that has a length that is less than a length of one of the chords.
A prosthetic valve comprising:
- a leaflet frame having a first end and a second end opposite the first end, the leaflet frame including a plurality of commissure posts and a plurality of leaflet windows each having a top, a bottom, a first side, and a second side;
- a plurality of leaflets coupled to two of the commissure posts of the leaflet frame, each leaflet extending from one of the plurality of leaflet windows and having a base that is truncated and substantially flat and a free end opposite the base, the base being formed by a fold region defining a line segment that is axially offset from the second end of the leaflet frame and the base being spaced apart from the bottom of the leaflet window in an axial direction.
Dependencies are inferred from the claim text.