Techniques for attaching flexible leaflets of prosthetic heart valves to supporting structures
First Claim
Patent Images
1. A prosthetic heart valve comprising:
- an annular valve-perimeter shape-defining structure having a radially outer surface;
a clip structure on the outer surface, the clip structure having a cam which may be influenced to move the clip structure from a natural closed condition to an open condition;
a retainer member; and
a flexible leaflet having an edge portion that is folded over the retainer member, the retainer member and the edge portion being received in the clip structure in said open condition of said clip structure by influence on said cam, and the retainer member and the edge portion being retained in the clip structure by said cam in said closed condition of said clip structure.
2 Assignments
0 Petitions
Accused Products
Abstract
A prosthetic heart valve has an annular valve-perimeter-shape-defining structure having a radially outer surface. A clip structure is provided on the outer surface. This clip structure is used to attach flexible valve leaflets to the shape-defining structure. One or more retainer members may be used to help hold the leaflets in the clip structure.
71 Citations
33 Claims
-
1. A prosthetic heart valve comprising:
-
an annular valve-perimeter shape-defining structure having a radially outer surface; a clip structure on the outer surface, the clip structure having a cam which may be influenced to move the clip structure from a natural closed condition to an open condition; a retainer member; and a flexible leaflet having an edge portion that is folded over the retainer member, the retainer member and the edge portion being received in the clip structure in said open condition of said clip structure by influence on said cam, and the retainer member and the edge portion being retained in the clip structure by said cam in said closed condition of said clip structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 26, 29, 32)
-
-
11. A prosthetic heart valve comprising:
-
an annular valve-perimeter-shape-defining structure having a radially outer surface; a clip structure on the outer surface, the clip structure having an open state and a closed state defined by movement of a cam element; and a flexible leaflet having an edge portion that is at least partly secured to the valve-perimeter-shape-defining structure by being retained in the clip structure by the cam element when in said closed state. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 27, 30, 33)
-
-
23. A method of making a prosthetic heart valve comprising:
-
providing an annular valve-perimeter shape-defining structure having a radially outer surface on which a clip structure is provided, the clip structure having an open condition and a closed condition, the open condition being obtained by influence on a cam surface of the clip structure; folding an edge portion of a leaflet over a retainer member; and inserting the edge portion and the retainer member into the clip structure against the cam surface to move the clip structure into said open condition; securing the leaflet to the valve-perimeter-shape-defining structure when the clip structure is in the closed condition. - View Dependent Claims (24, 25, 28, 31)
-
Specification