Heart valve stent with alignment posts

• US 6,635,085 B1
• Filed: 08/17/2000
• Issued: 10/21/2003
• Est. Priority Date: 08/17/2000
• Status: Expired due to Fees

• Current Assignee: Corcym SRL (LivaNova Plc)
• Original Assignee: Carbomedics Inc. (Snia SpA)
• Inventors: Freund, Matthew Allen, Caffey, James Charles, Hutton, James, Moe, Riyad
• Primary Examiner(s): Milano, Michael J.
• Assistant Examiner(s): PHANIJPHAND, GWEN G
• Application Number:
  US09/640,599
• Time in Patent Office: 1,160 Days
• Field of Search: 623/1.15, 623/1.24, 623/900, 623/2.1, 623/2.14, 623/2.17, 623/2.19
• US Class Current: 623/2.1
• CPC Class Codes: A61F 2/2415 Manufacturing methods
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: Y10S 623/90 Stent for heart valve

Abstract

A stent includes a stent member having a plurality of post members formed therein. Each post member is connected to an adjacent post member by an interconnecting portion. A plurality of leg members extend from the stent member. The stent may be molded within a flexible polymer valve. The legs stabilize and locate the stent in the mold. Upon completion of the molding process, the legs can be separated from the stent.

Claims

1. A heart valve stent comprising:

a stent member comprising a plurality of post members, each post member being connected to an adjacent post member by an interconnecting portion; and

a plurality of leg members extending from the stent member, wherein each leg member comprises a break-away connection to the stent member.

2. The stent of claim 1 wherein the stent comprises at least two post members.

3. The stent of claim 1 wherein the stent comprises at least two interconnecting portions.

4. The stent of claim 1 wherein the stent comprises at least three leg members.

5. The stent of claim 1 wherein the post members, the interconnecting portions and the leg members are formed from a single piece of material.

6. The stent of claim 5 wherein the single piece of material comprises a tube.

7. The stent of claim 1 wherein the post members, the interconnecting portions and the leg members are formed from a plurality of pieces and fabricated into a unit.

8. The stent of claim 1 wherein the break-away connection is between the leg members and the interconnecting portions.

9. The stent of claim 8 wherein the break-away connection comprises a score.

10. The stent as defined in claim 1 wherein the post members extend in a first direction.

11. The stent as defined in claim 10 wherein the leg members extend in a second direction, opposite the first direction.

12. A heart valve prosthesis comprising:

a valve body comprising a flexible material;

a stent member embedded in the valve body, the stent member comprising a plurality of post members, each post member being connected to an adjacent post member by an interconnecting portion; and

a plurality of leg members extending from the stent member.

13. The stent as defined in claim 12 wherein the stent includes at least two post members.

14. The stent as defined in claim 13 wherein the stent includes at least two interconnecting portions.

15. The stent as defined in claim 12 wherein the stent includes at least three leg members.

16. The stent as defined in claim 12 wherein the post members, the interconnecting portions and the leg members are formed from a single piece of material.

17. The stent as defined in claim 12 wherein the post members, the interconnecting portions and the leg members are formed from a plurality of pieces and fabricated into a unit.

18. The stent as defined in claim 12 wherein each leg member comprises a break-away connection to the stent member.

19. The stent as defined in claim 12 wherein the post members extend in a first direction.

20. The stent as defined in claim 19 wherein the leg members extend in a second direction, opposite the first direction.

21. A heart valve stent comprising:

a stent member comprising a plurality of post members, each post member being connected to an adjacent post member by an interconnecting portion; and

a plurality of leg members extending from the stent member, wherein the post members, the interconnecting portion and the leg members are formed from a plurality of pieces and fabricated into a unit.