HEART VALVE ASSEMBLY SYSTEMS AND METHODS

• US 20130282114A1
• Filed: 03/15/2013
• Published: 10/24/2013
• Est. Priority Date: 04/19/2012
• Status: Active Grant

• Current Assignee: Caisson Interventional, LLC (LivaNova Plc)
• Original Assignee: Caisson Interventional, LLC (LivaNova Plc)
• Inventors: Schweich, Cyril J. Jr., Mortier, Todd J.
• Granted Patent: US 9,011,515 B2
• Time in Patent Office: Days
• US Class Current: 623/2.19
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/243 Deployment by mechanical expansion
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2/246 Devices for obstructing a leak through a native valve in a closed condition
• CPC Class Codes: A61F 2/2466 Delivery devices therefor
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2250/006 modular
• CPC Class Codes: A61F 2250/0069 Sealing means
• CPC Class Codes: F04C 2270/041 Controlled or regulated

Abstract

Heart valve assembly systems and methods configured for medical interventional procedures. In one aspect, the methods and systems involve a modular approach to treatment.

Claims

1. A heart valve assembly system for implantation at an interventional site, comprising:

an anchor, the anchor including structure residing above and below a valve annulus and an interior; and

a valve assembly defining structure configured to be implanted separately from the anchor and having an exterior sized and shaped to lockingly and directly engage the interior of the anchor.

2. The system of claim 1, the valve assembly further comprising a plurality of annular ridges shaped to lockingly receive the anchor.

3. The system of claim 1, the valve assembly further comprising a generally cylindrical portion and a tapered portion extending from the generally cylindrical portion, the tapered portion contoured to mate with native valve anatomy.

4. The system of claim 3, the valve assembly further comprising a surface configured for tissue ingrowth.

5. The system of claim 4, the valve assembly further comprising a projecting member extending beyond the tapered portion, the projecting member sized and shaped to engage native valve anatomy to offset rotational forces.

6. The system of claim 1, the valve assembly further comprising a tapered section extending within heart anatomy to engage a wall in a heart chamber.

7. The system of claim 1, wherein the valve assembly is configured to present valve leaflet structure which is at an angle with respect to a native valve opening.

8. The system of claim 1, the valve assembly further comprising valve frame structure supporting five or more leaflets.

9. The system of claim 8, wherein the one leaflet is an envelope center valve bounded by four separate and distinct leaflets.

10. The system of claim 1, the valve assembly further comprising a multi-leaflet valve frame including a crossing strut frame.

11. The system of claim 10, wherein the crossing strut frame supports three centrally located leaflets and three outer leaflets.

12. The system of claim 11, wherein the three centrally located leaflets together form a triangular shape when in a closed position.

13. The system of claim 11, wherein the three centrally located leaflet together form a generally circular shape when in a closed position.

14. The system of claim 1, the valve assembly includes leaflets which include non-coaptive tips which extend below the native valve leaflets.

15. The system of claim 1, the valve assembly including a pair of laterally arranged tri-leaflet valves.

16. The system of claim 1, the valve assembly configured to be suspended within a coaptation line of a native valve.

17. The system of claim 16, wherein the valve assembly includes leaflets which open and close in response to functioning of native leaflets.

18. The system of claim 1, the valve assembly including tubular structure extending from an opening, the tubular structure includes a wall that collapses to close the valve assembly.

19. The system of claim 1, the valve assembly including a plurality of flap-like leaflets.

20. The system of claim 19, wherein certain of the flap-like leaflets are arranged at different angles from other flap-like leaflets.

21. A mitral heart valve assembly, comprising:

an anchor, the anchor including structure residing above and below a valve annulus and an interior; and

a valve assembly defining structure configured to be implanted separately from the anchor and having an exterior sized and shaped to lockingly and directly engage the interior of the anchor;

wherein the one leaflet is an envelope center valve bounded by four separate and distinct leaflets.

22. A mitral heart valve assembly, comprising:

an anchor, the anchor including structure residing above and below a valve annulus and an interior; and

a valve assembly defining structure configured to be implanted separately from the anchor and having an exterior sized and shaped to lockingly and directly engage the interior of the anchor;

wherein the three centrally located leaflet together form a generally circular shape when in a closed position.

23. A mitral heart valve assembly, comprising:

an anchor, the anchor including structure residing above and below a valve annulus and an interior; and

a valve assembly defining structure configured to be implanted separately from the anchor and having an exterior sized and shaped to lockingly and directly engage the interior of the anchor;

wherein certain of the flap-like leaflets are arranged at different angles from other flap-like leaflets.

24. A mitral heart valve assembly, comprising:

an anchor, the anchor including structure residing above and below a valve annulus and an interior; and

a valve assembly defining structure configured to be implanted separately from the anchor and having an exterior sized and shaped to lockingly and directly engage the interior of the anchor, the valve assembly further comprising a tapered section extending within heart anatomy to engage a wall in a heart chamber.