Perivalvular sealing for transcatheter heart valve
First Claim
1. A prosthetic heart valve comprising:
- a collapsible and expandable annular frame that is configured to be collapsed to a radially collapsed state for mounting on a delivery apparatus and expanded to a radially expanded state inside the body, the frame having an inflow end, an outflow end, and a longitudinal axis extending from the inflow end to the outflow end, the frame comprising a plurality of struts defining a plurality of cells; and
a collapsible and expandable valve member mounted within the annular frame; and
a collapsible and expandable annular sealing member having an inflow end and an outflow end, the sealing member being coupled to the frame such that when the frame is in its radially collapsed state, the sealing member can be placed in a delivery orientation in which the sealing member is radially collapsed and extends from the inflow end of the frame in a direction away from the outflow end of the frame, and such that a proximal pulling force on the sealing member causes the sealing member to be displaced axially relative to the frame toward the outflow end of the frame in a direction parallel to the longitudinal axis to an operative orientation in which the outflow end of the sealing member is moved closer to the outflow end of the frame and the inflow end of the sealing member is moved closer to the inflow end of the frame and the sealing member covers at least a portion of the cells of the frame.
1 Assignment
0 Petitions
Accused Products
Abstract
The present disclosure is directed to embodiments of catheter-based prosthetic heart valves, and in particular, prosthetic heart valves having sealing devices configured to seal the interface between the prosthetic valve and the surrounding tissue of the native annulus in which the prosthetic valve is implanted. In one embodiment, a prosthetic heart valve includes an annular sealing member that can be placed in a delivery orientation extending axially away from one end of the valve when the valve is in a radially compressed state. When the valve is expanded, the expansion of the frame causes the sealing member to be pulled to an operative orientation covering a portion of the frame. The present disclosure also discloses new mechanisms and techniques for mounting valve leaflets to a frame of a prosthetic heart valve.
-
Citations
14 Claims
-
1. A prosthetic heart valve comprising:
-
a collapsible and expandable annular frame that is configured to be collapsed to a radially collapsed state for mounting on a delivery apparatus and expanded to a radially expanded state inside the body, the frame having an inflow end, an outflow end, and a longitudinal axis extending from the inflow end to the outflow end, the frame comprising a plurality of struts defining a plurality of cells; and a collapsible and expandable valve member mounted within the annular frame; and a collapsible and expandable annular sealing member having an inflow end and an outflow end, the sealing member being coupled to the frame such that when the frame is in its radially collapsed state, the sealing member can be placed in a delivery orientation in which the sealing member is radially collapsed and extends from the inflow end of the frame in a direction away from the outflow end of the frame, and such that a proximal pulling force on the sealing member causes the sealing member to be displaced axially relative to the frame toward the outflow end of the frame in a direction parallel to the longitudinal axis to an operative orientation in which the outflow end of the sealing member is moved closer to the outflow end of the frame and the inflow end of the sealing member is moved closer to the inflow end of the frame and the sealing member covers at least a portion of the cells of the frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A prosthetic heart valve comprising:
-
a collapsible and expandable annular frame that is configured to be collapsed to a radially collapsed state for mounting on a delivery apparatus and expanded to a radially expanded state inside the body, the frame having an inflow end, an outflow end, and a longitudinal axis extending from the inflow end to the outflow end, the frame comprising a plurality of struts defining a plurality of cells; and a collapsible and expandable valve member mounted within the annular frame; and a collapsible and expandable annular sealing member having an inflow end and an outflow end, the sealing member being coupled to the frame such that when the frame is in its radially collapsed state, the sealing member can be placed in a delivery orientation in which the sealing member is radially collapsed and extends from the inflow end of the frame in a direction away from the outflow end of the frame, and such that a proximal pulling force applied to the sealing member causes the sealing member to move from the delivery orientation to an operative orientation in which the outflow end of the sealing member is moved closer to the outflow end of the frame and the sealing member covers at least a portion of the cells of the frame. - View Dependent Claims (12, 13, 14)
-
Specification