Anchoring device and method for replacing or repairing a heart valve

Patent metadata

Field	Value
Publication number	US-10238489-B2
Application number	US-201715482529-A
Country	US
Kind code	B2
Filing date	Apr 7, 2017
Priority date	Dec 21, 2011
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A method and device for anchoring a prosthetic heart valve or annuloplasty ring to a valve annulus in a heart and a method of implanting same is disclosed. The device can include a prosthetic valve or annuloplasty ring with one or more anchors configured to be threaded or otherwise passed underneath a native leaflet and/or subvalvular tissue to secure the device at the native annulus.

First claim

What is claimed is:

1. An anchoring device for a prosthetic implant intended for implantation at a native heart valve annulus, the anchoring device being formed of a biocompatible material and comprising:
two ring portions each having an associated anchor extending therefrom, the ring portions each being planar and rotatable with respect to each other, each of the anchors having a proximal fixed end secured to an associated ring portion and terminating in a distal free end not connected to the associated ring portion, wherein each of the anchors is spaced slightly away from and runs in a continuous, unbroken fashion substantially parallel to a circumference of the associated ring portion so as to form a valve leaflet-receiving slot between the anchor and the associated ring portion.

2. The anchoring device of claim 1 , wherein the anchors include a cross-section configured to have a different in-plane stiffness than an out-of-plane stiffness.

3. The anchoring device of claim 1 , wherein the anchors extend in the same angular direction to each other.

4. The anchoring device of claim 1 , further comprising one or more radiopaque markers positioned at the distal free ends of each anchor.

5. The anchoring device of claim 1 , wherein in an anchored configuration the proximal fixed ends of the anchors are spaced at least 90 degrees apart.

6. The anchoring device of claim 1 , wherein in an anchored configuration the proximal fixed ends of the anchors are spaced at least about 120 degrees apart.

7. The anchoring device of claim 1 , wherein the anchoring device has two anchors, one on each ring portion, and one anchor is longer than the other.

8. The anchoring device of claim 1 , wherein the slots have a length of about 0.25 to 3.5 inches.

9. The anchoring device of claim 1 , further comprising a cloth covering around each of the anchors.

10. The anchoring device of claim 1 , wherein the prosthetic implant comprises a prosthetic heart valve having a support frame and a valve portion, wherein the anchoring device is secured to the support frame.

11. The anchoring device of claim 1 , wherein each anchor lies in the same plane as and radially outward from the associated ring portion.

12. The anchoring device of claim 1 , wherein each anchor lies in a different plane than and axially spaced from the associated ring portion.

13. The anchoring device of claim 1 , further comprising a cloth covering around the entire anchoring device.

14. The anchoring device of claim 13 , further comprising a lubricious coating held by the cloth covering.

15. The anchoring device of claim 1 , further comprising a bioresorbable covering around the entire anchoring device.

16. A method of implanting a prosthetic implant at a native valve annulus having resident valve leaflets, comprising:
providing a prosthetic implant comprising the anchoring device of claim 1 ;
positioning the anchoring device with the anchors adjacent the native valve annulus, with a fluid flow axis of the prosthetic implant generally parallel to a fluid flow path through the native valve annulus; and
independently rotating each of the ring portions to advance the distal free ends of each anchor underneath a resident valve leaflet thereby slidingly advancing the resident valve leaflets into the leaflet-receiving slots.

17. The method of claim 16 , wherein the prosthetic implant comprises a prosthetic heart valve having a support frame and leaflets with the leaflets secured to the support frame to form a one-way valve structure controlling fluid flow along the flow axis, and, wherein the anchoring device is secured to the support frame.

18. The method of claim 16 , wherein each anchor lies in the same plane as and radially outward from the associated ring portion.

19. The method of claim 16 , wherein each anchor lies in a different plane than and axially spaced from the associated ring portion.

20. The method of claim 16 , wherein in an anchored configuration the proximal fixed ends of the anchors are spaced at least about 120 degrees apart.

21. The method of claim 16 , wherein the anchoring device has two anchors, one on each ring portion, and one anchor is longer than the other.

22. The method of claim 16 , further comprising a cloth covering around each of the anchors.

Assignees

• Edwards Lifesciences Corp

Inventors

• Conklin Brian S

Classifications

• A61F2/24

  Heart valves {; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body} · CPC title

• A61F2/2445 Primary

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

• A61F2/2409

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

• A61F2/2457

  Chordae tendineae prostheses · CPC title

• A61F2230/0069

  cylindrical · CPC title