Mitral valve prosthesis for transcatheter valve implantation
AssigneeMedtronic Vascular Galway
InventorDeclan Costello
Life of this patent
Estimating the term…
Abstract
A transcatheter valve prosthesis is disclosed that has a compressed, delivery configuration and an expanded configuration for deployment within a native heart valve. The valve prosthesis includes a self-expanding frame and a prosthetic valve component. The self-expanding frame includes a valve receiving portion defining an opening therethrough and first and second anchors at opposing ends of the valve receiving portion. The valve receiving portion is substantially planar and the first and second anchors are oriented substantially perpendicular to the valve receiving portion when the valve prosthesis is in the expanded configuration. The prosthetic valve component is disposed within the opening of the valve receiving portion and secured thereto.
Claims20
A method of percutaneously delivering and deploying a valve prosthesis within a native valve of a heart comprising:
- introducing a portion of a delivery system into a patient, the delivery system including a delivery catheter and the valve prosthesis in a compressed delivery configuration in a distal portion of the delivery catheter, wherein the valve prosthesis includes a self-expanding frame and a prosthetic valve component, the self-expanding frame having a first end, a second end opposing the first end, an upstream surface, and a downstream surface opposing the upstream surface and being configured to be positioned downstream of the upstream surface in situ, wherein the upstream surface and the downstream surface each extend between the first end and the second end of the self-expanding frame, and wherein the valve prosthesis in the compressed delivery configuration is disposed within the delivery catheter such that the first end of the self-expanding frame is distal to the second end of the self-expanding frame;
- advancing the valve prosthesis until at least a portion of the valve prosthesis is disposed within the native valve;
- retracting an outer sheath of the delivery system to deploy the first end of the self-expanding frame, wherein at least the second end of the self-expanding frame remains in the distal portion of the delivery catheter;
- securing the first end of the self-expanding frame to a wall of the heart, wherein a first native leaflet of the native valve is thereby pinned between the wall of the heart and the first end;
- retracting the outer sheath of the delivery system to deploy the second end of the self-expanding frame such that the valve prosthesis is in an expanded configuration;
- and
- securing the second end of the self-expanding frame to the wall of the heart, wherein a second native leaflet of the native valve is thereby pinned between the wall of the heart and the second end.
A method of percutaneously delivering and deploying a valve prosthesis within a native valve of a heart comprising:
- introducing a portion of a delivery system into a patient, the delivery system including a delivery catheter and the valve prosthesis in a compressed delivery configuration in a distal portion of the delivery catheter, wherein the valve prosthesis includes a self-expanding frame and a prosthetic valve component, and wherein a longitudinal axis of the valve prosthesis extends between a first end of the self-expanding frame and a second end of the self-expanding frame, the longitudinal axis of the valve prosthesis being configured to extend perpendicular to blood flow in situ through the prosthetic valve component of the valve prosthesis when the valve prosthesis is in an expanded configuration, and wherein the valve prosthesis in the compressed delivery configuration is disposed within the delivery catheter such that the longitudinal axis of the valve prosthesis is parallel to a longitudinal axis of the delivery catheter;
- advancing the valve prosthesis until at least a portion of the valve prosthesis is disposed within the native valve;
- retracting an outer sheath of the delivery system to deploy the first end of the self-expanding frame, wherein at least the second end of the self-expanding frame remains in the distal portion of the delivery catheter;
- securing the first end of the self-expanding frame to a wall of the heart, wherein a first native leaflet of the native valve is thereby pinned between the wall of the heart and the first end;
- retracting the outer sheath of the delivery system to deploy the second end of the self-expanding frame such that the valve prosthesis is in the expanded configuration;
- and
- securing the second end of the self-expanding frame to the wall of the heart, wherein a second native leaflet of the native valve is thereby pinned between the wall of the heart and the second end.
Dependencies are inferred from the claim text.