Infundibular Reducer Devices

• US 20100049306A1
• Filed: 02/24/2009
• Published: 02/25/2010
• Est. Priority Date: 02/25/2008
• Status: Active Grant

• Current Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Original Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Inventors: Finney, Michael, Huynh Busold, Rany, Bonhoeffer, Philipp, MacDonald, Stuart, Douk, Nareak, Rafiee, Nasser, Mas, Juan-Pablo, House, Morgan
• Granted Patent: US 8,801,776 B2
• Time in Patent Office: Days
• US Class Current: 623/1.260
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0078 hyperboloidal
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61F 2250/0023 differing in porosity
• CPC Class Codes: A61F 2250/0039 differing in diameter
• CPC Class Codes: A61F 2250/0048 differing in mechanical expandability, e.g. in mechanical, self- or balloon expandability

Abstract

Described is a prosthetic valve assembly comprising: a radially self-expandable stent configured to expand to bear against a wall of a native body lumen; and an implantable prosthetic valve, having a diameter, the valve being mounted inside the stent; wherein the diameter of the stent is greater than the diameter of the prosthetic valve.

Claims

1. A prosthetic valve assembly comprising:

a radially self-expandable stent configured to expand to bear against a wall of a native body lumen; and

an implantable prosthetic valve, having a diameter, the valve being mounted inside the stent;

wherein the diameter of the stent is greater than the diameter of the prosthetic valve.

2. The prosthetic valve assembly of claim 1, wherein the stent comprises a plurality of wires.

3. The prosthetic valve assembly of claim 2, wherein the plurality of wires comprise a material having shape memory.

4. The prosthetic valve assembly of claim 2, wherein the plurality of wires comprise a plurality of different materials.

5. The prosthetic valve assembly of claim 2, wherein the plurality of wires are circular in shape and include a plurality of sinusoidal bends.

6. The prosthetic valve assembly of claim 5, wherein the sinusoidal bends in the wires have different sizes.

7. The prosthetic valve assembly of claim 2, wherein at least some of the plurality of wires are in a nested configuration.

8. The prosthetic valve assembly of claim 2, wherein at least some of the plurality of wires are in a point-to-point configuration.

9. The prosthetic valve assembly of claim 1, wherein the stent comprises a middle portion having a smaller diameter than at end portions thereof, and the valve is mounted in the middle portion.

10. The prosthetic valve assembly of claim 1, wherein the stent comprises a middle portion having a diameter and end portions thereof that have tapered diameters in directions toward the middle portion, and the valve is mounted in the middle portion.

11. The prosthetic valve assembly of claim 10, wherein the middle portion is cylindrical in shape.

12. The prosthetic valve assembly of claim 1, wherein the stent comprises a plurality of wires attached to at least one piece of fabric.

13. The prosthetic valve assembly of claim 9, wherein the middle portion and each end portion articulate with respect to each other.

14. A prosthetic valve assembly comprising:

a radially self-expandable stent comprising a middle portion having a smaller diameter than end portions thereof, with the end portions configured to expand to bear against a wall of a native body lumen; and

an implantable prosthetic valve mounted inside the middle portion of the stent.

15. The prosthetic valve assembly of claim 14, wherein the stent comprises a plurality of wires.

16. The prosthetic valve assembly of claim 15, wherein the plurality of wires comprise a plurality of different materials.

17. The prosthetic valve assembly of claim 15, wherein the plurality of wires are circular in shape and include a plurality of bends.

18. The prosthetic valve assembly of claim 17, wherein the bends in the wires are sinusoidal in shape.

19. The prosthetic valve assembly of claim 15, wherein the plurality of wires comprise a material having shape memory.

20. The prosthetic valve assembly of claim 14, wherein end portions have tapered diameters in directions toward the middle portion.

21. The prosthetic valve assembly of claim 14, wherein the middle portion is cylindrical in shape.

22. The prosthetic valve assembly of claim 14, wherein the stent comprises a plurality of wires attached to at least one piece of fabric.

23. The prosthetic valve assembly of claim 14, wherein the middle portion and each end portion articulate with respect to each other.

24. The prosthetic valve assembly of claim 15, wherein at least some of the plurality of wires are in a nested configuration.

25. The prosthetic valve assembly of claim 15, wherein at least some of the plurality of wires are in a point-to-point configuration.

26. A prosthetic valve assembly comprising:

a radially self-expandable stent configured to expand to bear against a wall of a native body lumen, the stent comprising;

a plurality of wires; and

at least one piece of fabric to which the plurality of wires are attached; and

an implantable prosthetic valve mounted inside the stent;

wherein the plurality of wires of the stent are individually expandable and compressible providing the assembly with modularity.

27. The prosthetic valve assembly of claim 26, wherein the plurality of wires comprise circular wires having a plurality of bends around the circumference of the circular wires.

28. The prosthetic valve assembly of claim 27, wherein the plurality of wires are in a nested configuration or a point-to-point configuration or a combination thereof.

29. The prosthetic valve assembly of claim 26, wherein the plurality of wires comprise a material having shape memory.