Transcatheter valve with paravalvular leak sealing ring

• US 10,299,926 B2
• Filed: 04/27/2018
• Issued: 05/28/2019
• Est. Priority Date: 05/16/2014
• Status: Active Grant

• Current Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Inventors: Morin, Kristen T., Para, Andrea N., Braido, Peter N., Khouengboua, Sounthara, Benson, Thomas M., Kumar, Saravana B., Moseman, Bruce, Satam, Gaurav
• Primary Examiner(s): Gherbi, Suzette J
• Application Number:
  US15/964,413
• Publication Number:
  US 20180243090A1
• Time in Patent Office: 396 Days
• Field of Search: 623 21- 219
• 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 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/2472 Devices for testing
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2210/0061 swellable
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2230/001 Figure-8-shaped, e.g. hourglass-shaped
• CPC Class Codes: A61F 2230/0017 Angular shapes
• CPC Class Codes: A61F 2230/0019 rectangular
• CPC Class Codes: A61F 2230/0034 D-shaped
• CPC Class Codes: A61F 2230/0078 hyperboloidal
• CPC Class Codes: A61F 2250/0069 Sealing means

Abstract

A prosthetic heart valve includes a collapsible and expandable stent extending from an inflow end to an outflow end and a plurality of prosthetic valve leaflets coupled to the stent. The prosthetic heart valve may also include a sealing ring coupled to the inflow end of the stent, the sealing ring comprising a tube extending circumferentially around the inflow end of the stent. The tube may be formed from a wire coiled into a repeating shape, such as a rectangle or a diamond, so that the tube is collapsible. A covering may at least partially surround the tube. The sealing ring may include a first filler positioned within the tube and/or a second filler positioned between the tube and the covering.

Claims

1. A prosthetic heart valve comprising:

a collapsible and expandable stent extending from an inflow end to an outflow end;

a cuff coupled to the stent;

a plurality of prosthetic valve leaflets coupled to the stent; and

a sealing ring coupled to the inflow end of the stent, the sealing ring including a tube extending circumferentially around the inflow end of the stent and a covering at least partially surrounding the tube, the covering extending between a first edge and a second edge that is discontinuous with the first edge,

wherein the first edge of the covering is coupled to at least one of the stent and the cuff.

2. The prosthetic heart valve of claim 1, wherein the tube is directly coupled to at least one of the stent and the cuff.

3. The prosthetic heart valve of claim 2, wherein the second edge of the covering is coupled directly to none of the tube, the stent, or the cuff.

4. The prosthetic heart valve of claim 2, wherein the covering less than fully circumscribes the tube.

5. The prosthetic heart valve of claim 4, wherein a stitch couples both the tube and the first edge of the covering to at least one of the stent and the cuff.

6. The prosthetic heart valve of claim 1, wherein the second edge of the covering is coupled directly to the tube.

7. The prosthetic heart valve of claim 6, wherein the tube is coupled neither directly to the cuff nor directly to the stent.

8. The prosthetic heart valve of claim 6, wherein a stitch couples both the tube and the first edge of the covering to at least one of the stent and the cuff.

9. A prosthetic heart valve comprising:

a collapsible and expandable stent extending from an inflow end to an outflow end;

a cuff coupled to the stent;

a plurality of prosthetic valve leaflets coupled to the stent; and

a sealing ring coupled to the inflow end of the stent, the sealing ring including a tube extending circumferentially around the inflow end of the stent and a covering at least partially surrounding the tube, the covering extending between a first edge and a second edge,

wherein the first edge of the covering is coupled to at least one of the stent and the cuff, and

wherein the covering fully circumscribes the tube.

10. The prosthetic heart valve of claim 9, wherein a stitch couples the first and second edges of the covering directly to at least one of the stent and the cuff.

11. The prosthetic heart valve of claim 10, wherein the tube is directly coupled to none of the covering, the stent, and the cuff.

12. The prosthetic heart valve of claim 10, wherein the stitch also couples the tube to at least one of the stent and the cuff.

13. The prosthetic heart valve of claim 10, wherein an edge of the stent is positioned between the first edge of the covering and the second edge of the covering.

14. A prosthetic heart valve comprising:

a collapsible and expandable stent extending from an inflow end to an outflow end;

a cuff coupled to the stent;

a plurality of prosthetic valve leaflets coupled to the stent; and

a sealing ring coupled to the inflow end of the stent, the sealing ring including a tube extending circumferentially around the inflow end of the stent and a covering at least partially surrounding the tube, the covering extending between a first edge and a second edge,

wherein the first edge of the covering is coupled to at least one of the stent and the cuff, and

wherein the sealing ring further comprises an outer filler material disposed between the covering and the tube.

15. The prosthetic heart valve of claim 14, wherein the sealing ring further comprises an inner filler material disposed within the tube.

16. The prosthetic heart valve of claim 14, wherein the outer filler material is formed of a water-swellable material.

17. The prosthetic heart valve of claim 14, wherein the outer filler material is formed of a material configured to expand after exposure to body temperatures.

18. A prosthetic heart valve comprising:

a collapsible and expandable stent extending from an inflow end to an outflow end;

a cuff coupled to the stent;

a plurality of prosthetic valve leaflets coupled to the stent; and

a sealing ring coupled to the inflow end of the stent, the sealing ring including a tube extending circumferentially around the inflow end of the stent and a covering at least partially surrounding the tube, the covering extending between a first edge and a second edge,

wherein the first edge of the covering is coupled to at least one of the stent and the cuff; and

wherein the sealing ring further comprises an inner filler material disposed within the tube.

19. The prosthetic heart valve of claim 18, wherein the inner filler material is formed of a water-swellable material.

20. The prosthetic heart valve of claim 18, wherein the inner filler material is formed of a material configured to expand after exposure to body temperatures.