Interchangeable Prosthetic Valve

• US 20080039934A1
• Filed: 09/07/2005
• Published: 02/14/2008
• Est. Priority Date: 09/07/2004
• Status: Active Grant

• Current Assignee: Cormove
• Original Assignee: Laboratories Perouse
• Inventors: Styrc, Mikolaj
• Granted Patent: US 7,806,927 B2
• Time in Patent Office: Days
• US Class Current: 623/2.17
• 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 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2002/9528 for retrieval of stents
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2250/0059 temporary

Abstract

The invention relates to a prosthetic valve (50) which is endoluminally placeable and comprises a tubular support (52) radially deformable with respect to a main axis (X-X) from an unfolded implanting position to a folded setting position a flexible plug (52) connected to the tubular support (52) and deformable between a blocking position in which it is transversally stretched and a releasing position in which it is transversally contracted by the action of a flow circulating, through said tubular support (52). The inventive valve also comprises a rigid chord (90) which extends generally along the generatrix of the tubular support (52) and is connected thereto at least at two points (92A, 92B) which are remote from each other along the axis thereof.

Claims

1-11. -11. (canceled)

12. A prosthetic valve for being put into place by an endoluminal approach, the valve comprising:

a tubular support that is radially deformable relative to a main axis between a deployed implantation position and a folded positioning position; and

a flexible shutter connected to the tubular support and deformable between an obstruction position in which it extends transversally and a release position in which it is contracted transversally under the action of a flow of blood through the tubular support;

the valve including at least one rigid member extending generally along a generator line of the tubular support, which member is connected to the tubular support at least two points that are spaced along the axis of the tubular support.

13. A prosthetic valve according to claim 12, wherein the tubular support defines a solid cylindrical wall that is liquid-proof.

14. A prosthetic valve according to claim 13, wherein the tubular support comprises a tubular lattice covered in a stretchable film that is liquid-proof and that forms said solid cylindrical wall.

15. A prosthetic valve according to claim 14, wherein the or each member is engaged in alternation in the meshes of the lattice.

16. A prosthetic valve according to claim 12, wherein the tubular support presents a generally cylindrical middle trunk and, axially at each end of the trunk, two generally frustoconical collars flaring away from the trunk towards the ends of the supports.

17. A prosthetic valve according to claim 12, wherein the tubular support is resilient and is shaped to be urged resiliently from its folded position towards its deployed position.

18. A prosthetic valve according to claim 12, wherein the or each member has a projecting end for connection to a prop for holding the prosthetic valve in place.

19. A prosthetic valve according to claim 12, wherein the tubular support is extended by converging legs forming a tripod, which legs are connected to one another at a connection point lying substantially on the axis of the tubular support.

20. A prosthetic valve according to claim 12, wherein the shutter has three membranes that are deformable between a closed position in which the free edges of the membranes touch one another in pairs over half their length, and an open position for passing the flow of blood in which the three membranes are spaced apart from one another.

21. A prosthetic valve according to claim 12, wherein the connection between the member and the tubular support is performed by welding or by adhesive bonding.

22. A treatment kit comprising:

a prosthetic valve according to claim 12;

a catheter for putting the valve into place; and

a prop for holding the prosthetic valve, which prop includes means for interconnecting it in line with the member of the prosthetic valve.