REPLACEMENT PROSTHETIC HEART VALVES AND METHODS OF IMPLANTATION

• US 20170035564A1
• Filed: 10/18/2016
• Published: 02/09/2017
• Est. Priority Date: 02/16/2007
• Status: Abandoned Application

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Ryan, Timothy R., Bonhoeffer, Philipp
• Application Number:
  US15/296,469
• Publication Number:
  US 20170035564A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2433 using balloon catheter
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2220/005 using adhesives
• 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 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2310/00023 Titanium or titanium-based alloys, e.g. Ti-Ni alloys

Abstract

A replacement prosthetic heart valve for engagement with a structure of a previously implanted prosthetic heart valve. The replacement heart valve includes a stent structure including a generally tubular body portion with an interior area and a series of wire portions arranged in a mesh-like configuration, and at least one stent post engaging structure extending radially outwardly from the body portion for engaging with an outer surface of a stent post of the previously implanted prosthetic heart valve. The stent structure further includes at least two leaflets attached within the interior area of the tubular body portion of the stent structure.

Claims

1-12. -12. (canceled)

13. :

A replacement prosthetic heart valve for engagement with a previously implanted prosthetic heart valve having a plurality commissure posts, the replacement heart valve comprising;

a stent structure comprising;

a generally tubular body portion;

a plurality of vertical members that are spaced apart from each other around a perimeter of the body portion and that extend in a direction that is generally parallel to a longitudinal axis of the body portion; and

a plurality of commissure post engagement members that are spaced apart from each other around a perimeter of the body portion and extending radially outwardly from the body portion;

a plurality of leaflets attached within the tubular body portion;

wherein the number of vertical members and the number of commissure post engagement members matches the number of commissure posts of the previously implanted heart valve;

wherein the commissure post engagement members are configured to contact an exterior portion of the commissure posts of the previously implanted heart valve;

wherein the vertical members are configured to contact an interior portion of the previously implanted heart valve; and

wherein the commissure post engagement members and the vertical members are configured to capture the commissure posts of the previously implanted heart valve therebetween.

14. :

The replacement heart valve of claim 13, wherein each vertical member is configured to contact an interior portion of a commissure post of the previously implanted heart valve.

15. :

The replacement heart valve of claim 13, wherein the previously implanted prosthetic heart valve comprises three commissure posts.

16. :

The replacement heart valve of claim 13, wherein the previously implanted prosthetic heart valve comprises two commissure posts.

17. :

The replacement heart valve of claim 13, wherein the previously implanted prosthetic heart valve comprises a ring member, wherein the stent structure further comprises a plurality of flange members that extend outwardly from the body portion, the flange members spaced between adjacent vertical members, the flange members configured to contact a portion of the ring member.

19. :

The replacement heart valve of claim 13, wherein the stent structure further comprises a plurality of flange members that extend outwardly from the body portion, the flange members spaced between adjacent vertical members, the flange members configured to contact an inflow portion of the previously implanted heart valve.

20. :

The replacement heart valve of claim 13, wherein at least a portion of the stent structure is expandable.

21. :

The replacement heart valve of claim 13, wherein at least a portion of the stent structure is self-expandable from a collapsed position to an expanded position in response to removal of an external compressive force.

22. :

The replacement heart valve of claim 13, wherein at least a portion of the stent structure is expandable with the application of an outward radial force.

23. :

The replacement heart valve of claim 13, further comprising a visually detectable marker.

24. :

The replacement heart valve of claim 13, further comprising a sealing gasket surrounding at least a portion of a perimeter of the generally tubular body portion.

25. :

The replacement heart valve of claim 13, wherein the vertical members each comprise a generally U-shaped structure or a generally V-shaped structure.

26. :

The replacement heart valve of claim 13, wherein the stent structure further comprises a plurality of upper vertical members and a plurality of lower vertical members, wherein each of the upper vertical members extend in a direction opposite the plurality of lower vertical members.

27. :

The replacement heart valve of claim 26, wherein each upper vertical member is longitudinally aligned with a corresponding one of the plurality of lower vertical members.

28. :

The replacement heart valve of claim 13, wherein the vertical members are configured to align with the commissure posts of the previously implanted heart valve.

29. :

The replacement heart valve of claim 13, wherein the previously implanted prosthetic heart valve comprises a ring member and a plurality of leaflets, wherein the stent structure further comprises a plurality of leaflet engagement members configured to hold the leaflets of the previously implanted prosthetic heart valve against the ring member.

30. :

The replacement heart valve of claim 29, wherein leaflet engagement members each comprise a generally W-shaped structure, a generally U-shaped structure, or a generally V-shaped structure.