HEART VALVE SYSTEM

• US 20030125805A1
• Filed: 04/25/2002
• Published: 07/03/2003
• Est. Priority Date: 01/02/2002
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Ryan, Timothy R., Morrow, Joseph C., Johnson, Keith M., Lemmon, Jack D.
• Granted Patent: US 7,189,258 B2
• Time in Patent Office: Days
• US Class Current: 623/2.11
• 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 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments

Abstract

A valve system including an aortic valve and a holder. The holder includes a holder body, which has a central portion, engagable with a holder handle, and downwardly extending leg portions that engage the valve in the areas between the commissure posts. The central portion of the holder further includes a spool located between the commissure posts, rotatable by an attached handle. Rotation of the spool draws in a tensile member passing through the commissure posts, drawing the commissure posts inward toward the spool. The tensile member passes through guides formed in the holder, configured such that they define the maximum available inward deflection of the commissure posts at the point at which the portions of the tensile member between the commissure posts assume straight configurations.

Claims

1. A heart valve system, comprising:

a heart valve comprising a valve body having a plurality of upwardly extending commissure posts; and

a holder having a holder body comprising a central portion engagable with a holder handle and having a plurality of legs extending downwardly from the central portion, coupled to the valve body intermediate the commissure posts.

2. A system according to claim 1 wherein the central portion of the holder body is located between upper ends of the commissure posts.

3. A system according to claim 2 wherein the central portion of the a holder body includes a rotatable spool and wherein the holder further comprises a tensile member, coupled to and windable around the spool and passing through the upper ends of the commissure posts such that rotation of the spool to wind the tensile member around the spool results in deflection of the commissure posts inwardly toward the spool.

4. A system as in claim 3 wherein the spool is coupled to a first end of the tensile member and wherein a second end of the tensile member is coupled to the holder body.

5. A system as in claim 4 wherein the second end of the tensile member is coupled to one of the downwardly extending legs.

6. A system according to claim 4 further comprising a ratchet allowing rotation of the spool only to wind the tensile member around the spool.

7. A system as in claim 4 wherein the spool is engagable with the holder handle.

8. A system according to claim 7, further comprising a holder handle, engaged with the spool.

9. A system as in any of claims 3-8, wherein the holder body comprises guides through which the tensile member passes, the guides defining a maximum degree to which the tension member can be wound around the spool and thereby correspondingly defining a maximum inward deflection of the commissure posts.

10. A system as in claim 9, wherein the guides are formed on the downwardly extending legs.

11. A system as in claim 9 wherein the guides comprise indentations through which the tensile member passes.

12. A system as in claim 9, wherein the guides comprise openings through which the tensile member passes.

13. A system according to claim 1 wherein the tensile member is a length of suture.

14. A system according to claim 1 wherein the legs are coupled to the valve body by means of sutures.

15. A system according to claim 1, further comprising a holder handle, engaged with the central portion of the holder body.

16. A system according to claim 1, wherein at least one of the legs is provided with a hinge.

17. A heart valve system, comprising:

a heart valve comprising a valve body having a plurality of upwardly extending commissure posts; and

a holder having a holder body comprising a central portion coupled to a holder handle and having a plurality of legs extending downwardly from the central portion, coupled to the valve body intermediate the commissure posts.

18. A system according to claim 17 wherein the central portion of the holder body is located between upper ends of the commissure posts.

19. A system according to claim 18 wherein the central portion of the a holder body includes a rotatable spool and wherein the holder further comprises a tensile member, coupled to and windable around the spool and passing through the upper ends of the commissure posts such that rotation of the spool to wind the tensile member around the spool results in deflection of the commissure posts inwardly toward the spool.

20. A system as in claim 19 wherein the spool is coupled to a first end of the tensile member and wherein a second end of the tensile member is coupled to the holder body.

21. A system as in claim 20 wherein the second end of the tensile member is coupled to one of the downwardly extending legs.

22. A system according to claim 20 further comprising a ratchet allowing rotation of the spool only to wind the tensile member around the spool.

23. A system as in claim 20 wherein the spool is coupled to the holder handle.

24. A heart valve system, comprising:

a heart valve comprising a valve body having a plurality of upwardly extending commissure posts;

a holder having a holder body engagable with a holder handle and coupled to the valve body,

a rotatable spool located intermediate the commissure posts; and

a tensile member, coupled to and windable around the spool and passing through the upper ends of the commissure posts such that rotation of the spool to wind the tensile member around the spool results in deflection of the commissure posts inwardly toward the spool.

25. A system as in claim 24 wherein the spool is coupled to a first end of the tensile member and wherein a second end of the tensile member is coupled to the holder body.

26. A system according to claim 24 further comprising a ratchet allowing rotation of the spool only to wind the tensile member around the spool.

27. A system as in claim 24 wherein the spool is engagable with a holder handle.

28. A system according to claim 27, further comprising a holder handle, engaged with the spool.

29. A system as in any of claims 24-28, wherein the holder body comprises guides through which the tensile member passes, the guides defining a maximum degree to which the tension member can be wound around the spool and thereby correspondingly defining a maximum inward deflection of the commissure posts.

30. A system as in claim 29 wherein the guides comprise indentations through which the tensile member passes.

31. A system as in claim 30, wherein the guides comprise openings through which the tensile member passes.

32. A system according to claim 24 wherein the tensile member is a length of suture.

33. A system according to claim 24 wherein the holder is coupled to the valve body by means of sutures.

34. A heart valve system, comprising:

a heart valve comprising a valve body having a plurality of upwardly extending commissure posts;

a holder having a holder body engaged with a holder handle and coupled to the valve body,

a rotatable spool located intermediate the commissure posts; and

a tensile member, coupled to and windable around the spool and passing through the upper ends of the commissure posts such that rotation of the spool to wind the tensile member around the spool results in deflection of the commissure posts inwardly toward the spool.

35. A system as in claim 34 wherein the spool is coupled to a first end of the tensile member and wherein a second end of the tensile member is coupled to the holder body.

36. A system according to claim 35 further comprising a ratchet allowing rotation of the spool only to wind the tensile member around the spool.

37. A system as in any of claims 34-36, wherein the holder body comprises guides through which the tensile member passes, the guides defining a maximum degree to which the tension member can be wound around the spool and thereby correspondingly defining a maximum inward deflection of the commissure posts.