Repair device for heart valve repair

Patent metadata

Field	Value
Publication number	US-11969345-B2
Application number	US-201917258919-A
Country	US
Kind code	B2
Filing date	Jul 11, 2019
Priority date	Jul 11, 2018
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

A repair device for closing a valve of a heart includes a main stem. The mains stem has a distal end and a proximal end. The main stem comprises a papillary anchor on the proximal end. The papillary anchor of the main stem is configured to attach to a papillary muscle of the heart. The main stem further includes a first branch extending from the main stem in a first direction and configured to attach to a first leaflet of the valve of the heart. The main stem also includes a second branch extending from the main stem in a second direction different from the first direction and configured to attach to a second leaflet of the valve. The first and second branches are flexible.

First claim

What is claimed:

1. A repair device for repairing a valve of a heart, the repair device comprising:
a main stem having a distal end and a proximal end,
a papillary anchor disposed on the proximal end of the main stem, wherein the papillary anchor is configured to attach to a papillary muscle of the heart,
an annulus anchor disposed on the distal end of the main stem, the annulus anchor configured to attach to a wall of the heart,
a first branch extending from the main stem in a first direction and configured to attach to a first leaflet of the valve of the heart, and
a second branch extending from the main stem in a second direction different from the first direction and configured to attach to a second leaflet of the valve,
wherein the first and second branches are flexible.

2. The repair device according to claim 1 , wherein when the papillary muscle is relaxed, the device is configured to be in a relaxed configuration in which the first and second branches are untensioned.

3. The repair device according to claim 1 , wherein when the papillary muscle is contracted, the device is configured to be in a flexed position in which the first and second branches are taut.

4. The repair device according to claim 3 , configured to move away from the first and second leaflets when the repair device moves from a relaxed position to the flexed position.

5. The repair device according to claim 1 , wherein the main stem extends along a longitudinal axis and the first and second branches extend from the main stem at an angle relative to the longitudinal axis.

6. The repair device according to claim 1 , wherein the main stem has a circular or rectangular cross section.

7. The repair device according to claim 1 , wherein the device comprises a plurality of first and second branches.

8. The repair device according to claim 1 , wherein the first branch comprises multiple sub-branches, at least one of the sub-branches extending in a direction different from a direction which at least one other of the sub-branches extends.

9. The repair device according to claim 8 , wherein at least one of the sub-branches extends in a direction parallel to the second direction.

10. The repair device according to claim 8 , wherein the second branch comprises multiple sub-branches, at least one of the sub-branches extending in a direction different from a direction which at least one other of the sub-branches extends.

11. The repair device according to claim 10 , wherein at least one of the sub-branches extends in a direction parallel to the first direction.

12. The repair device according to claim 1 , wherein at least one of the first and second branches comprises a loop.

13. The repair device according to claim 1 , wherein at least a portion of the main stem is formed by a series of adjacent loops.

14. The repair device according to claim 1 , wherein the first branch is configured to attach to an edge of the first leaflet, and wherein the second branch is configured to attach to an edge of the second leaflet.

15. The repair device according to claim 1 , wherein the papillary anchor is configured to be sutured to the papillary muscle.

16. The repair device according to claim 1 , wherein the second branch is configured to be attached to an underside of the second leaflet.

17. The repair device according to claim 1 , wherein the first and second directions are parallel.

18. The repair device according to claim 1 , wherein the main stem made from tissue engineered material.

19. The repair device according to claim 18 , wherein the tissue engineered material is configured to enable the length of the main stem to be changed.

20. The repair device according to claim 1 , wherein the main stem comprises stretchable material to lengthen or shorten a length of the main stem.

21. The repair device according to claim 1 , wherein the first branch has a different length than the second branch.

22. The repair device according to claim 1 , wherein the main stem has a ribbon-like structure.

23. The repair device according to claim 1 , wherein the main stem is a membrane or sheet of material.

24. The repair device according to claim 1 , wherein the main stem comprises braided or woven material.

25. The repair device according to claim 1 , wherein at least a portion of the first branch is formed by a series of adjacent loops.

26. The repair device according to claim 1 , wherein at least a portion of the second branch is formed by a series of adjacent loops.

27. A repair device for repairing a valve of a heart, the repair device comprising:
a main stem formed from tissue engineered material, the main stem having a distal end and a proximal end,
a papillary anchor disposed on the proximal end of the main stem, wherein the papillary anchor is configured to attach to a papillary muscle of the heart,
a first branch extending from the main stem in a first direction and configured to attach to a first leaflet of the valve of the heart, and
a second branch extending from the main stem in a second direction different from the first direction and configured to attach to a second leaflet of the valve,
wherein the first and second branches are flexible.

Assignees

• Childrens Medical Center

Inventors

• Hammer Peter E
• Hoganson David
• Saeed Mossab Y
• Del Nido Pedro J
• Baird Christopher W
• Emani Sitaram M

Classifications

• A61F2/2457 Primary

  Chordae tendineae prostheses · CPC title

• A61F2/2463 Primary

  Implants forming part of the valve leaflets · CPC title

• A61F2220/0016

  with sharp anchoring protrusions, e.g. barbs, pins, spikes · CPC title

• A61F2220/0075

  sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable · CPC title

• A61F2/2487

  Devices within the heart chamber, e.g. splints · CPC title