Sewing cuff assembly for heart valves

• US 20020183834A1
• Filed: 12/21/2000
• Published: 12/05/2002
• Est. Priority Date: 12/20/2000
• Status: Active Grant

• Current Assignee: Corcym SRL (LivaNova Plc)
• Original Assignee: Carbomedics Inc. (Snia SpA)
• Inventors: Klaco, Tammi
• Granted Patent: US 6,716,244 B2
• Time in Patent Office: Days
• US Class Current: 623/2.4
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442

Abstract

The present invention provides a prosthetic valve and a sewing cuff assembly for attaching the prosthetic valve in a patient'"'"'s heart. The suture cuff generally includes at least one lock ring and sewing cuff material disposed at least partially around the lock ring. The valve body includes a peripheral groove for receiving the lock ring therein and securing the lock ring thereto. A stiffening ring may be coupled to the peripheral groove or otherwise provided on the valve body.

Claims

1. A heart valve, comprising:

(a) a valve body having an outer circumferential rim;

(b) a suture cuff assembly comprising;

(i) at least one lock ring; and

(ii) a material disposed at least partially around and secured to the lock ring.

2. The heart valve of claim 1 wherein the suture ring further comprises a filler material disposed inside at least a portion of the material.

3. The heart valve of claim 1 further comprising a stiffening ring coupled to the valve body and defining a lock ring receiving channel at least partially therein.

4. The heart valve of claim 1 further comprising at least two lock rings and wherein the material is secured to each lock ring.

6. The heart valve of claim 3 wherein the stiffening ring is formed integrally in the valve body.

7. The heart valve of claim 3 wherein the stiffening ring comprises a U-shaped channel.

8. The heart valve of claim 3 wherein the stiffening ring comprises a portion of a stent coupled to the valve body.

9. The heart valve of claim 3 wherein the stiffening ring is discontinuous around the perimeter of the valve body.

10. The heart valve of claim 1 wherein the suture material is disposed around the lock ring on at least one end thereof and an opposing end is secured to the end disposed around the lock ring.

11. The heart valve of claim 1 wherein the suture material is selected from the group of polyester, Teflon felt, and Dacron.

13. The suture ring of claim 12 further comprising a filler material disposed at least partially between the attachment material and the lock rings.

14. The suture ring of claim 12 further wherein the attachment material is disposed around each of the lock rings at opposing ends of the attachment material and secured thereto.

15. The suture ring of claim 14 wherein a filler material is disposed at least partially between the attachment material and the lock rings.

16. The suture ring of claim 12 wherein each lock ring comprises an annular ring.

18. The heart valve of claim 1, wherein said third radius is greater than said second radius.

5. The heart valve of claim wherein the valve body comprises a material selected from the group of polyurethane, silicone or combinations thereof.

12. A suture ring for a heart valve, comprising:

(a) at least a pair of lock rings; and

(b) an attachment material disposed at least partially around the pair of lock rings.

17. A heart valve, comprising:

(a) a valve body comprising a flow orifice and an outer periphery having a first radius, and a groove having a second radius less than said first radius;

(b) a suture cuff assembly comprising;

(i) at least one lock ring having a third radius, said third radius being less than said first radius; and

(c) a sewing cuff material disposed at least partially around and coupled to said at least one lock ring.