Bowed Runners for Paravalvular Leak Protection

• US 20170165053A1
• Filed: 02/12/2015
• Published: 06/15/2017
• Est. Priority Date: 02/18/2014
• Status: Active Grant

• Current Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories)
• Original Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories)
• Inventors: Vietmeier, Kristopher Henry, Buesseler, Ryan, Kumar, Saravana B., Khouengboua, Ott, Korfe, Jane M.
• Granted Patent: US 11,672,652 B2
• Time in Patent Office: Days
• 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 2230/0078 hyperboloidal
• CPC Class Codes: A61F 2250/0039 differing in diameter
• CPC Class Codes: A61F 2250/0069 Sealing means

Abstract

A prosthetic heart valve for replacing a native valve includes a collapsible and expandable stent having a proximal end and a distal end, the stent being formed of a plurality of struts forming cells. A valve assembly is disposed within the stent, the valve assembly including a plurality of leaflets and a cuff. At least one runner is coupled to a cell and configured to transition from a first configuration to a second configuration when the stent moves from the collapsed condition to the expanded condition.

Claims

1. A prosthetic heart valve for replacing a native valve, comprising:

a stent including a plurality of struts forming cells, the stent having a collapsed condition and an expanded condition;

a valve assembly disposed within the stent, the valve assembly including a plurality of leaflets and a cuff; and

at least one runner coupled to a cell, the at least one runner being configured to transition from a first configuration to a second configuration when the stent moves from the collapsed condition to the expanded condition, the at least one runner projecting radially outwardly from the cell in the second configuration.

2. The prosthetic heart valve of claim 1, wherein the at least one runner is substantially linear in the first configuration.

3. The prosthetic heart valve of claim 1, wherein the at least one runner is bowed or curved in the second configuration.

4. The prosthetic heart valve of claim 3, wherein the at least one runner pushes the cuff radially outwardly when the at least one runner transitions from the first configuration to the second configuration.

5. The prosthetic heart valve of claim 4, wherein the at least one runner is disposed radially outward of the leaflets.

6. The prosthetic heart valve of claim 1, wherein the at least one runner has first and second ends coupled to the cell.

7. The prosthetic heart valve of claim 6, wherein the first end of the at least one runner is coupled to a junction of a first pair of struts of the cell and the second end of the at least one runner is coupled to a junction of a second pair of struts of the cell.

8. The prosthetic heart valve of claim 6, wherein the first end of the at least one runner is coupled to a first strut of the cell and the second end of the at least one runner is coupled to a second strut of the cell.

9. The prosthetic heart valve of claim 8, wherein the first strut is diagonally opposed to the second strut when the stent is in the collapsed condition.

10. The prosthetic heart valve of claim 1, wherein the at least one runner is coupled to the cell at an attachment end, the at least one runner being wider at the attachment end than at its midpoint.

11. The prosthetic heart valve of claim 1, wherein the at least one runner comprises a first runner and a second runner coupled to the cell.

12. The prosthetic heart valve of claim 11, wherein the first runner and the second runner are coupled together at their midpoints.

13. The prosthetic heart valve of claim 1, wherein the stent has a length direction between a proximal end and a distal end, and the at least one runner extends substantially in the length direction in the second configuration.

14. The prosthetic heart valve of claim 1, wherein the at least one runner extends substantially in a circumferential direction of the stent in the second configuration.

15. A prosthetic heart valve for replacing a native valve, comprising:

a stent including a plurality of struts forming cells, the stent having a collapsed condition and an expanded condition;

a valve assembly disposed within the stent, the valve assembly including a plurality of leaflets and a cuff; and

a nested strut coupled to a cell, the nested strut being configured to transition from a first configuration to a second configuration when the stent moves from the collapsed condition to the expanded condition, the nested strut projecting radially outwardly from the cell in the second configuration.

16. The prosthetic heart valve of claim 15, wherein the nested strut is substantially U-shaped in the collapsed condition.

17. The prosthetic heart valve of claim 15, wherein the nested strut extends substantially in a circumferential direction of the stent in the second configuration.