STENTED PROSTHETIC HEART VALVES

• US 20100305685A1
• Filed: 06/02/2009
• Published: 12/02/2010
• Est. Priority Date: 06/02/2009
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Taitague, Debra A., Dolan, Mark J., Eberhardt, Carol E., Shay, Janice L., Capps, Mark J., Millwee, Billie J.
• Granted Patent: US 8,075,611 B2
• Time in Patent Office: Days
• US Class Current: 623/1.26
• 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 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

Abstract

A surgical sutureless valve that is attached to a stent frame for delivery to a location in a patient using percutaneous implantation devices and methods.

Claims

1. A stented valve comprising:

a compressible and expandable stent structure comprising a generally tubular body portion having an interior area and a longitudinal axis; and

a bioprosthetic valve positioned at least partially within the interior area of the tubular body portion of the stent structure and comprising;

an outer tubular portion comprising at least two commissure extensions and an inner wall from which a plurality of leaflets extend; and

at least one scalloped portion extending between adjacent commissure extensions;

wherein the at least two commissure extensions are secured to the stent structure with attachment material that is slideable along the stent structure to allow for free movement of the valve relative to the stent structure along its longitudinal axis.

2. The stented valve of claim 1, wherein each of the at least one scalloped portions is secured to the stent structure.

3. The stented valve of claim 1, wherein each of the at least one scalloped portions is designed to correspond with a coronary artery when implanted in an aorta of a patient.

4. The stented valve of claim 2, wherein the scalloped portions are sutured to the stent structure so that they are slideable relative to the stent structure.

5. The stented valve of claim 1, wherein the stent structure is self-expandable from a compressed condition to an expanded condition with the removal of an external compressive force.

6. The stented valve of claim 1, wherein the stent structure is expandable from a compressed condition to an expanded condition with the application of an outward expansion force.

7. The stented valve of claim 1, wherein the outer tubular portion of the bioprosthetic valve comprises three commissure extensions.

8. The stented valve of claim 7, wherein the bioprosthetic valve comprises three leaflets.

9. A stented valve comprising:

a compressible and expandable stent structure comprising a generally tubular body portion having an interior area, an external surface, a longitudinal axis, an inflow end, and an outflow end;

a tubular tissue material at least partially covering the external surface of the stent structure and extending beyond the outflow end of the stent structure; and

a plurality of leaflets attached to the interior area of the stent

10. The stented valve of claim 9, wherein the tubular tissue material comprises a bovine jugular vein.

11. The stented valve of claim 9, wherein the tubular tissue material comprises at least one aperture to allow for unobstructed fluid flow.

12. The stented valve of claim 10, comprising an aperture at each sinus area of the tubular tissue material to allow for unobstructed coronary fluid flow.

13. The stented valve of claim 9, further comprising a single suture line along which the proximal end of the leaflets and the tubular tissue material are secured to crowns at a proximal end of the stent structure.