System and method for cardiac valve repair and replacement

Patent metadata

Field	Value
Publication number	US-11510780-B2
Application number	US-202016804712-A
Country	US
Kind code	B2
Filing date	Feb 28, 2020
Priority date	Jul 17, 2013
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A method of delivering a prosthetic mitral valve includes delivering a distal anchor from a delivery sheath such that the distal anchor self-expands inside a first heart chamber on a first side of the mitral valve annulus, pulling proximally on the distal anchor such that the distal anchor self-aligns within the mitral valve annulus and the distal anchor rests against tissue of the ventricular heart chamber, and delivering a proximal anchor from the delivery sheath to a second heart chamber on a second side of the mitral valve annulus such that the proximal anchor self-expands and moves towards the distal anchor to rest against tissue of the second heart chamber. The self-expansion of the proximal anchor captures tissue of the mitral valve annulus therebetween.

First claim

The invention claimed is:

1. A prosthetic mitral valve comprising:
a valve frame configured to expand from a collapsed configuration to an expanded configuration and having a plurality of retention hooks extending radially from a central portion of the valve frame when the valve frame is in the expanded configuration and having a strut positioned at a distal end of the valve frame, the strut including a plurality of strut members joining at a joint; and
a plurality of leaflets secured to the valve frame.

2. The prosthetic mitral valve of claim 1 , wherein the strut is configured to secure the leaflets.

3. The prosthetic mitral valve of claim 1 , wherein the plurality of strut members includes three strut members.

4. The prosthetic mitral valve of claim 1 , wherein the plurality of strut members form a triangular shape.

5. The prosthetic mitral valve of claim 1 , wherein the plurality of retention hooks flatten when the valve frame is in the collapsed configuration.

6. The prosthetic mitral valve of claim 1 , wherein a portion of the valve frame is covered with a skirt configured to seal the prosthetic mitral valve during use.

7. The prosthetic mitral valve of claim 1 , wherein the valve frame is self-expanding.

8. The prosthetic mitral valve of claim 1 , wherein the valve frame is configured to foreshorten during expansion of the valve frame.

9. The prosthetic mitral valve of claim 1 , wherein the joint is any one of a crimp, braid, weave and welding.

10. The prosthetic mitral valve of claim 1 , wherein the plurality of strut members includes a center strut member connected to two outside strut members at the joint to form two substantially triangular sub-structures, with the center strut member being a common triangular leg.

11. The prosthetic mitral valve of claim 1 , wherein the plurality of struts comprises three struts being spaced apart around a circumference of the prosthetic mitral valve.

12. The prosthetic mitral valve of claim 1 , wherein the valve frame a plurality of first arcs joined together and a plurality of second arcs joined together, the plurality of first arcs are out of phase relative to the plurality of second arcs in a plane transverse to a longitudinal axis of the prosthetic mitral valve.

13. The prosthetic mitral valve of claim 12 , wherein the plurality of first arcs are approximately 90 degrees out of phase relative to the plurality of second arcs.

14. The prosthetic mitral valve of claim 1 , wherein the valve frame is adapted to be secured in an orifice by applying a radial force from the central portion of the valve frame outward against the orifice.

15. A prosthetic mitral valve comprising:
a valve frame configured to expand from a collapsed configuration to an expanded configuration and having a plurality of retention hooks that extend radially from a central portion of the valve frame when the valve frame is in the expanded configuration and that flatten when the valve frame is in the collapsed configuration, and having a strut positioned at a distal end of the valve frame, the strut including a plurality of strut members joining at a joint; and
a plurality of leaflets secured to the valve frame.

16. The prosthetic mitral valve of claim 15 , wherein the joint is any one of a crimp, braid, weave and welding.

17. The prosthetic mitral valve of claim 15 , wherein the valve frame is adapted to be secured in an orifice by applying a radial force from the central portion of the valve frame outward against the orifice.

18. The prosthetic mitral valve of claim 15 , the valve frame is configured to foreshorten during expansion of the valve frame.

Assignees

• Cephea Valve Tech Inc

Inventors

• Granada Juan F
• Erzberger Gary
• Corcoran Michael P
• Wallace Dan
• Montorfano Matteo
• Chieffo Alaide

Classifications

• A61F2230/0065

  toroidal, e.g. ring-shaped, doughnut-shaped · CPC title

• A61F2/2436 Primary

  Deployment by retracting a sheath · CPC title

• A61F2/2418

  Scaffolds therefor, e.g. support stents · CPC title

• A61F2/2427

  Devices for manipulating or deploying heart valves during implantation · CPC title

• A61F2/2409

  Support rings therefor, e.g. for connecting valves to tissue (annuloplasty rings A61F2/2442) · CPC title