Assembly for setting a valve prosthesis in a corporeal duct

• US 20050033398A1
• Filed: 07/30/2002
• Published: 02/10/2005
• Est. Priority Date: 07/31/2001
• Status: Active Grant

• Current Assignee: Medtronic Corevalve LLC (Medtronic Plc)
• Original Assignee: Medtronic Corevalve LLC (Medtronic Plc)
• Inventors: Seguin, Jacques
• Granted Patent: US 7,682,390 B2
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/1155 Circular staplers comprising a plurality of staples
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• 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 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2230/0078 hyperboloidal

Abstract

The invention concerns an assembly comprising a valve prosthesis to be implanted and a support receiving said valve. The support comprises: at least a tubular portion made of a pliable material slightly stretchable in the circumferential direction; means for fixing said tubular portion to the wall of the corporeal duct; and a plurality of elongated reinforcing elements, arranged on the circumference of said tubular portion and linked to said tubular portion independently of one another; the valve is linked at least partly to said elongated reinforcing elements, in particular at the commissures of its leaflets, and said elongated reinforcing elements jointly form, in extended position, a structure having a predetermined diameter that ensures sufficient extension of said valve.

Claims

1-18. -18. (Cancelled).

19. A valve prosthesis assembly comprising an implantable valve and a support for supportably receiving the valve, the valve and the support being configured to contract for delivery and deployment and expand for implantation, the assembly comprising:

at least one tubular portion comprising a radially expandable pliable material, the tubular portion configured to conform to a target corporeal duct site;

means for affixing the tubular portion to the wall of the corporeal duct; and

a plurality of elongated reinforcing elements linked to the tubular portion.

20. The assembly of claim 19, wherein the valve is configured to be connected at least partially to the elongated reinforcing elements and wherein said elongated reinforcing elements are configured to expand to a predetermined diameter that substantially ensures sufficient expansion of the valve.

21. The assembly of claim 19, further comprising a second tubular portion spaced from the first tubular portion by the elongated reinforcing elements.

22. The assembly of claim 19, wherein the valve is connected to the reinforcing elements at the commissures.

23. The assembly of claim 19, wherein the assembly is configured to permit lateral blood flow to the coronary ostia when implanted at the aortic valve.

24. The assembly of claim 19, wherein the tubular portion is configured to be expanded at a target location so as to provide a seal between said tubular portion and the wall of the target corporeal duct.

25. The assembly of claim 19, wherein a proximal zone of the tubular portion comprises a truncated cone shape suitable for bearing against the wall of the ventricle.

26. The assembly of claim 19, wherein the affixation means comprises one or more anchoring fasteners that each comprise an anchoring prong configured to be inserted into the wall of the target corporeal duct.

27. The assembly of claim 26, wherein the fasteners are plastically deformable.

28. The assembly of claim 26, wherein the affixation means is configured to extend the anchoring prongs of these fasteners in a non-radial fashion.

29. The assembly of claim 26, wherein the one or more fasteners comprise a shape-retaining material.

30. The assembly of claim 29, wherein the one or more fasteners comprise a nickel and titanium alloy.

31. The assembly of claim 19, wherein the affixation means comprises a biological glue.

32. The assembly of claim 31, wherein the glue is provided in breakable blisters placed on the radially external surface of the tubular portion.

33. The assembly of claim 19, wherein each elongated reinforcing element comprises a convex configuration.

34. The assembly of claim 19, wherein the elongated reinforcing elements comprise a rectilinear form at rest and wherein the assembly further comprises restraining means to limit the radial expansion of at least a portion of said elements when expanded in place.

35. The assembly of claim 19, further comprising means for delivering and deploying said assembly.

36. The assembly of claim 35, wherein the delivering and deploying means comprises a catheter.

37. The assembly of claim 36, wherein the delivering. and deploying means further comprises a sheath for maintaining the tubular portion and the elongated reinforcing elements in a contracted configuration during delivery and at least one balloon for expanding the tubular portion and reinforcing elements upon deployment.

38. The assembly of claim 36, wherein the delivering and deploying means further comprises a proximal positioning means, dimensioned for bearing against the wall of the ventricle.

39. The assembly of claim 36, wherein the delivering and deploying means further comprises a pump facilitating the flow of blood past the assembly during implantation.