HEART VALVE REPAIR AND REPLACEMENT

• US 20160361161A1
• Filed: 06/09/2016
• Published: 12/15/2016
• Est. Priority Date: 06/12/2015
• Status: Active Grant

• Current Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Inventors: Braido, Peter N., Fahim, Mina S., Benson, Thomas M., Dale, Theodore Paul, Para, Andrea N., Krans, Mark, Glimsdale, Mathias Charles
• Granted Patent: US 10,179,042 B2
• 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 2/2469 with resilient valve members, e.g. conical spiral
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/0069 cylindrical

Abstract

A prosthetic heart valve having an inflow end and an outflow end includes a collapsible and expandable stent having a plurality of commissure features, a plurality of first struts and a plurality of second struts. The plurality of first struts define a substantially cylindrical portion and the plurality of second struts have first ends attached to the cylindrical portion and free ends projecting radially outward from the cylindrical portion and configured to couple to adjacent heart tissue to anchor the stent. A collapsible and expandable valve assembly disposed within the stent has a plurality of leaflets coupled to the commissure features.

Claims

1. A prosthetic heart valve having an inflow end and an outflow end, comprising:

a collapsible and expandable stent including a plurality of commissure features, a plurality of first struts and a plurality of second struts, the plurality of first struts defining a substantially cylindrical portion and the plurality of second struts having first ends attached to the cylindrical portion and free ends projecting radially outward from the cylindrical portion and configured to couple to adjacent heart tissue to anchor the stent; and

a collapsible and expandable valve assembly disposed within the stent and having a plurality of leaflets coupled to the commissure features.

2. The prosthetic heart valve of claim 1, wherein the plurality of second struts includes curved struts, the free ends of the curved struts projecting toward a midsection of the stent.

3. The prosthetic heart valve of claim 1, wherein the plurality of second struts includes curling struts, the curling struts forming a fiddlehead shape between the first ends and the free ends.

4. The prosthetic heart valve of claim 1, wherein the first ends are disposed adjacent the outflow end.

5. The prosthetic heart valve of claim 1, wherein the first ends are disposed at a longitudinal position between the plurality of commissure features and the outflow end.

6. The prosthetic heart valve of claim 1, wherein the free ends terminate in at least one of a bell-shaped base, a rounded end having a narrowed neck and a bulbous crown.

7. The prosthetic heart valve of claim 1, wherein the free ends terminate in a pivoting head that is capable of alternating between a first position and a second position.

8. The prosthetic heart valve of claim 1, wherein the free ends terminate in at least one of an arrow-shaped end, a corkscrew, and a plurality of barbs.

9. The prosthetic heart valve of claim 1, wherein the free ends terminate in at least one of a porous region, a chemical bonding region, and an electrically excitable region.

10. The prosthetic heart valve of claim 1, wherein the free ends terminate in a region coated with a biocompatible adhesive.

11. The prosthetic heart valve of claim 1, wherein the free ends of a first group of the second struts have a first polarity and the free ends of a second group of the second struts have a second polarity opposite the first polarity.

12. The prosthetic heart valve of claim 1, wherein the valve assembly and the stent are capable of replacing the function of at least one of a native mitral valve and a native tricuspid valve.