System And Method For Cardiac Valve Repair And Replacement

Patent metadata

Field	Value
Publication number	US-2025099244-A1
Application number	US-202418973026-A
Country	US
Kind code	A1
Filing date	Dec 8, 2024
Priority date	Jul 17, 2013
Publication date	Mar 27, 2025
Grant date	—

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

1 . A method of delivering a prosthetic valve comprising:
delivering a first anchor portion of the prosthetic valve from a delivery sheath such that the first anchor portion begins to self-expand inside a first heart chamber on a first side of a native valve annulus; after the first anchor portion begins to self-expand, moving the first anchor portion such that the first anchor portion contacts the native valve annulus; during or after moving the first anchor portion, delivering a central portion of the prosthetic valve from the delivery sheath such that the central portion self-expands, the central portion being positioned between the first anchor portion and a second anchor portion of the prosthetic valve, wherein retention hooks extend from the central portion; and after moving the first anchor portion, delivering the second anchor portion from the delivery sheath to a second heart chamber on a second side of the native valve annulus such that the central portion has a central diameter and applies a radial force outwardly against the native valve annulus.

2 . The method of claim 1 , wherein, when the first anchor portion begins to self-expand, the first anchor portion is connected to at least one retention wire.

3 . The method of claim 2 , wherein after delivering the central portion and after delivering the second anchor portion, withdrawing or loosening the at least one retention wire.

4 . The method of claim 3 , further comprising withdrawing the at least one retention wire completely from the first anchor portion.

5 . The method of claim 1 , wherein the prosthetic valve is a prosthetic mitral valve and the native valve annulus is a mitral valve annulus.

6 . The method of claim 1 , wherein prosthetic valve is delivered by passing the prosthetic valve through the vena cava via femoral vein access.

7 . The method of claim 1 , wherein the first heart chamber is a ventricle and the second heart chamber is an atrium.

8 . The method of claim 7 , wherein the first anchor portion is a distal anchor portion and the second anchor portion is a proximal anchor portion.

9 . The method of claim 1 , further comprising:
folding and compressing the prosthetic valve within the delivery sheath.

10 . The method of claim 1 , further comprising:
after the first anchor portion begins to self-expand, resheathing the prosthetic valve into the delivery sheath; repositioning the prosthetic valve relative to the native valve annulus; and re-deploying the prosthetic valve from the delivery sheath.

11 . The method of claim 1 , wherein the first anchor portion comprises a first portion of a first outer frame and a first portion of a second outer frame and the second anchor portion comprises a second portion of the first outer frame and a second portion of the second outer frame.

12 . The method of claim 1 , wherein the first anchor portion and the second anchor portion are connected to one another through the central portion.

13 . The method of claim 1 , wherein struts extend distally from at least one of the first anchor portion and the central portion, the struts being configured to secure prosthetic leaflets.

14 . The method of claim 5 , wherein in an implanted condition of the prosthetic mitral valve, the central portion lines the mitral valve annulus while the first anchor portion and the second anchor portion pinch tissue of the mitral valve annulus therebetween.

15 . The method of claim 1 , wherein moving the first anchor portion includes pulling the first anchor proximally.

16 . The method of claim 5 , wherein in an implanted condition of the prosthetic mitral valve, the first anchor portion has a first diameter that is greater than the central diameter.

17 . The method of claim 16 , wherein in the implanted condition of the prosthetic mitral valve, the first diameter and the second diameter are greater than a diameter of the mitral valve annulus.

18 . The method of claim 17 , wherein in the implanted condition of the prosthetic mitral valve, the first diameter is the same as the second diameter.

19 . The method of claim 5 , further comprising: after delivering the central portion and after delivering the second anchor portion, retracting a distal tip of the delivery sheath from a left ventricle and through the prosthetic mitral valve and into a left atrium.

20 . The method of claim 1 , wherein the second anchor portion is delivered from the delivery sheath to the second heart chamber on the second side of the native valve annulus such that the second anchor portion self-expands and has a second diameter greater than the central diameter.

Assignees

• Cephea Valve Tech Inc

Inventors

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

Classifications

• A61F2220/0008

  Fixation appliances for connecting prostheses to the body · CPC title

• A61F2/2412

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

• A61F2/2439

  Expansion controlled by filaments · CPC title

• A61F2/2418

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

• A61F2/2409

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