PROSTHETIC HEART VALVE WITH LEAFLET SHELVING
First Claim
Patent Images
1. A prosthetic valve comprising:
- a leaflet frame defining commissure posts; and
a plurality of leaflets coupled to the leaflet frame, each leaflet coupled to two of the commissure posts and includes a free edge and a leaflet base, wherein the leaflet is operable to bend about a straight base segment of the leaflet base wherein the straight base segment has a length of less than a length of a chord defined as a straight line that extends from two of the commissure posts.
2 Assignments
0 Petitions
Accused Products
Abstract
Described embodiments are directed toward prosthetic valve leaflets of particular configurations that control bending character. In embodiments provided herein, a valve leaflet is provided with a planar zone that is bounded at a planar zone base by a straight line, wherein the leaflet is operable to bend along a base of the planar zone.
-
Citations
35 Claims
-
1. A prosthetic valve comprising:
-
a leaflet frame defining commissure posts; and a plurality of leaflets coupled to the leaflet frame, each leaflet coupled to two of the commissure posts and includes a free edge and a leaflet base, wherein the leaflet is operable to bend about a straight base segment of the leaflet base wherein the straight base segment has a length of less than a length of a chord defined as a straight line that extends from two of the commissure posts. - 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. A prosthetic valve comprising:
-
a leaflet frame defining commissure posts; and a plurality of leaflets coupled to the leaflet frame, each leaflet coupled to two of the commissure posts, each leaflet has a free edge and a leaflet base, the leaflet base having a flat portion that defines a shelf structure and defines a straight base segment of the leaflet base, the leaflet is operable to bend from the flat portion along the straight base segment towards the free edge, each leaflet has a planar zone including a planar zone base which is coincident with the straight base segment which is a substantially straight line that has a length that is less than a length of a chord defined as a straight line that extends from two of the commissure posts, wherein the planar zone is substantially planar. - View Dependent Claims (31)
-
-
32. A method of forming a prosthetic heart valve, comprising:
-
providing a leaflet frame having a generally tubular shape, the leaflet frame defining a plurality of commissure posts and 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; and bonding the layers of film to itself and to the leaflet frame, 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 between two of the commissure posts providing a generally annular support structure, 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 base than the free edge, wherein the leaflet is operable to bend about a straight base segment of the leaflet base in which a planer zone base of the planar zone of the leaflet is a substantially straight line that has a length that is less than a length of a chord defined as a straight line that extends from two of the commissure posts. - View Dependent Claims (33, 34, 35)
-
Specification