Surgical heart valve for transcatheter heart valve implantation

• US 10,231,836 B2
• Filed: 04/18/2016
• Issued: 03/19/2019
• Est. Priority Date: 09/19/2008
• Status: Active Grant

• Current Assignee: Edwards Lifesciences Corporation
• Original Assignee: Edwards Lifesciences Corporation
• Inventors: Konno, Mark A.
• Primary Examiner(s): Schall, Matthew
• Application Number:
  US15/132,137
• Publication Number:
  US 20160228242A1
• Time in Patent Office: 1,065 Days
• 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 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2433 using balloon catheter
• CPC Class Codes: A61F 2/2442 Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• 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 2230/0034 D-shaped
• CPC Class Codes: A61F 2250/001 for adjusting a diameter
• CPC Class Codes: A61F 2250/0071 breakable or frangible

Abstract

A prosthetic heart valve, and associated methods therefore, configured to replace a native heart valve, and having a support frame configured to be reshaped into an expanded form in order to receive and/or support an expandable prosthetic heart valve therein. The prosthetic heart valve may be configured to have a generally rigid and/or expansion-resistant configuration when initially implanted to replace a native valve (or other prosthetic heart valve), but to assume a generally non-rigid and/or expanded/expandable form when subjected to an outward force such as that provided by a dilation balloon.

Claims

1. A prosthetic heart valve comprising:

a support frame including a ring, a plurality of commissure supports, and a spring;

a valve portion secured to the support frame, the valve portion comprising three flexible, prosthetic leaflets disposed around a substantially circular valve orifice and secured to the commissure supports;

a cloth covering disposed over the ring; and

a sewing ring disposed at an inflow end of the support frame,

the ring having a first configuration defining the substantially circular valve orifice with a first diameter, the ring including a first end portion overlapping a second end portion defining an overlapping section having a first length, a sliding mechanical connection securing the first end portion to the second end portion at the overlapping section, and

the ring having a second configuration defining a valve orifice with a second diameter larger than the first diameter and the overlapping section having a second length shorter than the first length, and

the spring biasing the ring towards the first configuration.

2. A prosthetic heart valve comprising:

a support frame including a ring, a plurality of commissure supports, and a spring; and

a valve portion secured to the support frame, the valve portion comprising three flexible, prosthetic leaflets disposed around a valve orifice and secured to the commissure supports,

the ring having a first configuration defining the valve orifice with a first diameter, the ring including a first end portion overlapping a second end portion defining an overlapping section having a first length, the first end portion secured to the second end portion at the overlapping section,

the ring having a second configuration defining a valve orifice with a second diameter larger than the first diameter and the overlapping section having a second length shorter than the first length, and

the spring biasing the ring towards the first configuration.

3. The prosthetic heart valve of claim 2, wherein a valve orifice area in the second configuration is more than 10% larger than a valve orifice area in the first configuration.

4. The prosthetic heart valve of claim 3, wherein the valve orifice area in the second configuration is more than 20% larger than the valve orifice area in the first configuration.

5. The prosthetic heart valve of claim 2, wherein the valve orifice is generally circular in the first configuration.

6. The prosthetic heart valve of claim 2, wherein the ring comprises elgiloy.

7. The prosthetic heart valve of claim 2, wherein the ring is convertible from the first configuration to the second configuration using a dilation balloon or expandable stent.

8. The prosthetic heart valve of claim 2, wherein the spring provides a specific force opposing expansion.

9. The prosthetic heart valve of claim 2, wherein the spring comprises at least one of a coil spring, a compressible material, a pleated sewing ring, or an accordion sewing ring.

10. The prosthetic heart valve of claim 2, wherein a sliding mechanical connection secures the first end portion to the second end portion.

11. The prosthetic heart valve of claim 2, further comprising a cloth covering disposed around the ring.

12. The prosthetic heart valve of claim 2, wherein the ring comprises a single core element.

13. The prosthetic heart valve of claim 2, wherein at least one of adhesive, solder, a weld, or a mechanical connection secures the first end portion to the second end portion at the overlapping section.

14. The prosthetic heart valve of claim 2, further comprising a sewing ring disposed at an inflow end of the support frame.

15. The prosthetic heart valve of claim 2, wherein the spring includes a core of the support frame.