Replacement mitral valves

Patent metadata

Field	Value
Publication number	US-11090158-B2
Application number	US-201916506166-A
Country	US
Kind code	B2
Filing date	Jul 9, 2019
Priority date	Jan 23, 2017
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

A prosthetic mitral valve includes an anchor assembly, a strut frame, and a plurality of replacement leaflets secured to the annular strut frame. The anchor assembly includes a ventricular anchor, an atrial anchor, and a central portion therebetween. The ventricular anchor and the atrial anchor are configured to flare radially outwards relative to the central portion. The annular strut frame is disposed radially within the anchor assembly and is attached to the anchor assembly. The central portion is configured to align with a native valve orifice and the ventricular anchor and the atrial anchor are configured to compress native cardiac tissue therebetween.

First claim

The invention claimed is:

1. A prosthetic mitral valve comprising:
a valve support assembly configured to self-expand from a collapsed configuration to an expanded configuration and including an anchor assembly having a ventricular anchor, a central portion, and an atrial anchor, the anchor assembly including a plurality of diamond-shaped cells;
a plurality of leaflets attached to the valve support assembly; and
a plurality of retention hooks attached to the anchor assembly, when the valve support assembly is in the expanded configuration, each retention hook curving radially outwards and extending from an apex of a respective one of the plurality of diamond-shaped cells.

2. The prosthetic mitral valve of claim 1 , wherein the valve support assembly includes a strut frame positioned radially inward of the anchor assembly and attached to the anchor assembly.

3. The prosthetic mitral valve of claim 2 , wherein the plurality of leaflets are attached to the strut frame.

4. The prosthetic mitral valve of claim 2 , wherein the ventricular anchor is at a distal end of the valve support assembly and the atrial anchor is at a proximal end of the valve support assembly.

5. The prosthetic mitral valve of claim 4 , wherein the atrial anchor extends further proximally than does the strut frame.

6. The prosthetic mitral valve of claim 1 , wherein the atrial anchor flares radially outward in the expanded configuration.

7. The prosthetic mitral valve of claim 1 , wherein in the expanded configuration, a diameter of the atrial anchor is greater than a diameter of the central portion.

8. The prosthetic mitral valve of claim 1 , wherein at least some of the retention hooks point in the atrial direction.

9. The prosthetic mitral valve of claim 1 , wherein a thickness of each of the plurality of retention hooks is less than 1.6 mm.

10. The prosthetic mitral valve of claim 1 , wherein the plurality of retention hooks are integral with the valve support assembly.

11. A prosthetic mitral valve comprising:
a valve support assembly configured to self-expand from a collapsed configuration to an expanded configuration and including:
an anchor assembly having a ventricular anchor, a central portion, and an atrial anchor, the anchor assembly including a plurality of cells;
a strut frame positioned radially inward of the anchor assembly and attached to the anchor assembly;

a plurality of leaflets attached to the strut frame; and
a plurality of retention hooks attached to the anchor assembly, when the valve support assembly is in the expanded configuration, each retention hook curving radially outwards and extending from an apex of a respective one of the plurality of cells.

12. The prosthetic mitral valve of claim 11 , wherein the plurality of leaflets are attached to the strut frame.

13. The prosthetic mitral valve of claim 12 , wherein the ventricular anchor is at a distal end of the valve support assembly and the atrial anchor is at a proximal end of the valve support assembly.

14. The prosthetic mitral valve of claim 13 , wherein the atrial anchor extends further proximally than does the strut frame.

15. The prosthetic mitral valve of claim 11 , wherein the atrial anchor flares radially outward in the expanded configuration.

16. The prosthetic mitral valve of claim 11 , wherein in the expanded configuration, a diameter of the atrial anchor is greater than a diameter of the central portion.

17. The prosthetic mitral valve of claim 11 , wherein at least some of the retention hooks point in the atrial direction.

18. The prosthetic mitral valve of claim 11 , wherein a thickness of each of the plurality of retention hooks is less than 1.6 mm.

19. The prosthetic mitral valve of claim 11 , wherein the plurality of retention hooks are integral with the valve support assembly.

20. The prosthetic mitral valve of claim 11 , wherein each of the plurality of cells is diamond-shaped.

Assignees

• Cephea Valve Tech Inc

Inventors

• Noe Spencer
• Wallace Dan
• Oakden Jonathan

Classifications

• A61F2/2418 Primary

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

• A61F2/2412 Primary

  with soft flexible valve members, e.g. tissue valves shaped like natural valves · CPC title

• A61F2/2409 Primary

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

• A61F2/2445 Primary

  Annuloplasty rings in direct contact with the valve annulus · CPC title

• A61F2250/0063

  Nested prosthetic parts · CPC title