Methods for treating a deficient native mitral valve

Patent metadata

Field	Value
Publication number	US-11918461-B2
Application number	US-202318317771-A
Country	US
Kind code	B2
Filing date	May 15, 2023
Priority date	Mar 5, 2010
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

A method of treating a deficient native mitral valve of a heart of a patient includes advancing a steerable, first catheter through the patient's vasculature, advancing the distal end portion of the first catheter into the heart to position the distal end portion of the first catheter adjacent the native mitral valve, adjusting the curvature of the distal end portion of the first catheter to form a first curve, advancing a distal end portion of a second catheter from a distal end of the first catheter, wherein the distal end portion of the second catheter is pre-shaped to form a second curve when advanced from the first catheter, and deploying a wire from the second catheter such that the wire extends around native leaflets of the native mitral valve.

First claim

What is claimed is:

1. A method of treating a deficient native mitral valve of a heart of a patient, the method comprising:
advancing a steerable, first catheter through the patient's vasculature, wherein a distal end portion of the first catheter is steerable to facilitate advancement of the first catheter through the vasculature;
advancing the distal end portion of the first catheter into the heart to position the distal end portion of the first catheter adjacent the native mitral valve;
adjusting the curvature of the distal end portion of the first catheter to form a first curve;
advancing a distal end portion of a second catheter from a distal end of the first catheter, wherein the distal end portion of the second catheter is pre-shaped to form a second curve when advanced from the first catheter; and
deploying a wire from the second catheter such that the wire completely encircles native leaflets of the native mitral valve;
wherein the wire is pre-shaped to form a curve that surrounds the native leaflets when deployed from the second catheter.

2. The method of claim 1 , wherein the first curve defines a first plane and the second curve defines a second plane, wherein the second plane has a different orientation than the first plane.

3. The method of claim 2 , wherein the second plane is co-planar with a plane of an annulus of the native mitral valve.

4. The method of claim 1 , wherein the wire forms a loop around the native leaflets.

5. The method of claim 1 , wherein the second catheter is pre-shaped to surround the native leaflets when advanced from the first catheter.

6. The method of claim 1 , wherein the wire is made of metal.

7. A method of treating a deficient native mitral valve of a heart of a patient, the method comprising:
advancing a first catheter through the patient's vasculature;
advancing a distal end portion of the first catheter into the heart to position the distal end portion of the first catheter adjacent the native mitral valve;
advancing a distal end portion of a second catheter from a distal end of the first catheter, wherein the distal end portion of the second catheter is pre-shaped to form proximal and distal curves inside the heart when advanced from the first catheter, wherein first proximal and distal curves are in different planes; and
deploying a wire from the second catheter, wherein the wire has a pre-shaped curvature such that the wire extends completely around native leaflets of the native mitral valve when deployed from the second catheter.

8. The method of claim 7 , wherein the plane of the distal curve is generally perpendicular to a longitudinal axis of the distal end portion of the first catheter.

9. The method of claim 7 , wherein the wire forms a loop around the native leaflets.

10. The method of claim 7 , wherein the distal end portion of the second catheter extends radially away from the distal end portion of the first catheter along the proximal curve and then extends circumferentially around a longitudinal axis of the distal end portion of the first catheter along the distal curve.

11. The method of claim 10 , wherein the wire curves circumferentially around the longitudinal axis of the distal end portion of the first catheter.

12. A method of treating a deficient native mitral valve of a heart of a patient, the method comprising:
advancing a steerable, first catheter through the patient's vasculature, wherein a distal end portion of the first catheter is steerable to facilitate advancement of the first catheter through the vasculature;
advancing the distal end portion of the first catheter into the heart;
advancing a distal end portion of a second catheter from a distal end of the first catheter;
advancing a distal end portion of a third catheter from a distal end of the second catheter; and
deploying a wire from the third catheter, wherein the wire has a pre-shaped curvature such that the wire extends completely around native leaflets of the native mitral valve when deployed from the third catheter.

13. The method of claim 12 , wherein the distal end portion of the second catheter forms a curve inside the heart after it is deployed from the first catheter.

14. The method of claim 12 , wherein the distal end portion of the third catheter forms a curve extending around the native leaflets after it is deployed from the second catheter.

15. The method of claim 14 , wherein the distal end portion of the third catheter is pre-shaped to the form the curve after it is deployed from the second catheter.

16. The method of claim 15 , wherein the curve of the distal end portion of the third catheter is co-planar with a plane of an annulus of the native mitral valve.

17. The method of claim 12 , wherein the wire is a metal wire.

Assignees

• Edwards Lifesciences Corp

Inventors

• Meiri Oded
• Levi Tamir S
• Witzman Ofir

Classifications

• A61F2/2409 Primary

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

• A61B17/0487 Primary

  Suture clamps, clips or locks, e.g. for replacing suture knots; Instruments for applying or removing suture clamps, clips or locks (suture anchors A61B17/0401; wound clamps or clips A61B17/08; ligaturing clamps or clips A61B17/122) · CPC title

• A61B17/12013

  for use in minimally invasive surgery, e.g. endoscopic surgery · CPC title

• A61B17/122

  Clamps or clips, e.g. for the umbilical cord {(for the vas deferens A61F6/206)} · CPC title

• A61B17/1227

  Spring clips · CPC title