Prosthetic heart valve system

• US 7,503,929 B2
• Filed: 01/23/2006
• Issued: 03/17/2009
• Est. Priority Date: 01/02/2002
• Status: Expired due to Term

• 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.
• Primary Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US11/337,422
• Publication Number:
  US 20060235510A1
• Time in Patent Office: 1,149 Days
• Field of Search: 623 21- 219
• 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 2/2418 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 2/2439 Expansion controlled by filaments

Abstract

A prosthetic heart valve system including a prosthetic heart valve and a deflection device. The deflection device includes a line and a connector assembly including a tensioning component. The line interconnects and passes through free ends of stent posts associated with the heart valve, and is further connected to the tensioning component. The tensioning component is transitionable to a tensioning state in which the line is tensioned to inwardly deflect the stent posts. In this regard, the tensioning component is self-locking relative to the line in the tensioning state, and an entirety of the line extending distal the tensioning device does not extend beyond a stent portion of the heart valve opposite the stent posts. In a preferred embodiment, a holder body is further included, coupled to the heart valve apart from the deflection device.

Claims

1. A prosthetic heart valve system comprising:

a prosthetic heart valve including a stent and a plurality of stent posts extending from the stent, each of the stent posts defining a free end; and

a deflection device for inwardly deflecting the stent post, the deflection device including;

a line interconnecting and passing through free ends of a plurality of the stent posts,

a tensioning component that is movably disposed relative to free ends of the stent posts and having an end that is transitional relative to the free ends of the stent posts to a tensioning state in which the end of the tensioning component transitions the line to create tension within the line and thus to inwardly deflect at least one of the stent posts.

2. The prosthetic heart valve system of claim 1, further comprising:

a holder having a holder body coupled to the prosthetic heart valve.

3. The prosthetic heart valve system of claim 2, wherein the holder includes a holder body coupled to the prosthetic heart valve, the holder body configured to selectively retain the tensioning component.

4. The prosthetic heart valve system of claim 3, wherein the tensioning component includes a tubular body slidably connected to the line, and further wherein the holder body defines an aperture sized to selectively retain the tubular body.

5. The prosthetic heart valve system of claim 4, wherein the aperture is sized to receive the tubular body via a snap fit.

6. The prosthetic heart valve system of claim 2, wherein the holder body and the tensioning device are separately coupled to the prosthetic heart valve.

7. The prosthetic heart valve system of claim 6, wherein the holder body forms a central passage, and further wherein upon final assembly, the tensioning component is accessible via the central passage.

8. The prosthetic heart valve system of claim 7, wherein the tensioning component includes a rotatable spool including a post, and further wherein upon final assembly, the post is aligned with the central passage.

9. The prosthetic heart valve system of claim 8, wherein the post is engageable with a handle device.

10. The prosthetic heart valve system of claim 8, wherein the connector assembly further includes a ratchet along rotation of the spool only to wind the line around the spool.

11. The prosthetic heart valve system of claim 10, wherein the ratchet is accessible via the central passage.

12. The prosthetic heart valve system of claim 8, wherein the spool includes:

a base; and

a plurality of legs extending from the base, each of the legs forming at least one passage sized to slidably receive the line.

13. The prosthetic heart valve system of claim 12, wherein at least one of the legs forms two passages, the two passages sized to slidably receive and facilitate a securing of the line.

14. The prosthetic heart valve system of claim 1, wherein the connector assembly is assembled to the line such that the line defines a loop distal the connector assembly, the loop interconnecting the stent post.

15. The prosthetic heart valve system of claim 14, wherein a length of the loop in a locked state is selected to provide a predetermined amount of inward deflection of the stent post.

16. The prosthetic heart valve system of claim 1, wherein the connector assembly includes:

a housing defining a proximal end, a distal end, and a central passage, wherein the line is slidably received within the central passage; and

a locking element secured to the line at a fixed location so as to define a loop in the line adapted to interconnect the stent post;

wherein the housing and the locking element are configured such that the locking element is slidably receivable within the central passage at the distal end and locks to the housing adjacent the proximal end thereof to define a locked state.

17. The prosthetic heart valve system of claim 16, wherein the distal end of the housing extends distal the locking element in the locked state such that in the locked state, a length of the loop distal the connector assembly is defined by the distal end of the housing.

18. The prosthetic heart valve system of claim 1, wherein the connector assembly further includes a strip of material extending from the line, the strip of material providing a plurality of locking surfaces each adapted to lock the tensioning device relative to the line.

19. The prosthetic heart valve system of claim 1, wherein the prosthetic heart valve is a prosthetic mitral valve.

20. The prosthetic heart valve system of claim 1, wherein the prosthetic heart valve is a prosthetic aortic valve.

21. A prosthetic heart valve system comprising:

a prosthetic heart valve including a stent and a plurality of stent posts extending from the stent, each of the stent posts defining a free end;

a holder including a holder body coupled to the prosthetic heart valve; and

a deflection device including a tensioning component coupled to the prosthetic heart valve apart from the holder body

wherein the coupling of the holder body and the coupling of the tensioning component are arranged so that upon uncoupling of the holder body from the prosthetic heart valve, the tensioning component remains coupled to the prosthetic heart valve.

22. The prosthetic heart valve system of claim 21, further comprising:

a first line coupling the holder body to the prosthetic heart valve; and

a second line coupling the tensioning component to the prosthetic heart valve.

23. The prosthetic heart valve system of claim 21, wherein the system is adapted such that upon uncoupling of the holder body from the prosthetic heart valve, the tensioning component remains coupled to the prosthetic heart valve.

24. The prosthetic heart valve system of claim 21, wherein the tensioning component is selectively maintained by the holder body.

25. The prosthetic heart valve system of claim 24, wherein the tensioning device includes a housing, and further wherein the holder body forms an aperture sized to selectively maintain the housing.

26. The prosthetic heart valve system of claim 21, wherein the holder body and the tensioning device are separately coupled to the prosthetic heart valve.

27. The prosthetic heart valve system of claim 26, wherein the holder body forms a central passage, and further wherein upon final assembly, the tensioning component is accessible via the central passage.

28. The prosthetic heart valve system of claim 27, wherein the tensioning component includes a rotatable spool including a post, and further wherein upon final assembly, the post is aligned with the central passage.

29. The prosthetic heart valve system of claim 28, wherein the post is engageable with a handle device.

30. The prosthetic heart valve system of claim 28, wherein the connector assembly further includes a ratchet along rotation of the spool only to wind the line around the spool.

31. The prosthetic heart valve system of claim 30, wherein the ratchet is accessible via the central passage.

32. The prosthetic heart valve system of claim 21, wherein the prosthetic heart valve is a prosthetic mitral valve.

33. The prosthetic heart valve system of claim 21, wherein the prosthetic heart valve is a prosthetic aortic valve.

34. The prosthetic heart valve system of claim 21, wherein the tensioning component is coupled to the prosthetic heart valve via a line interconnecting the free end of each of the stent posts.