EXPANDABLE PROSTHETIC VALVE CRIMPING DEVICE

• US 20090018570A1
• Filed: 07/12/2007
• Published: 01/15/2009
• Est. Priority Date: 07/12/2007
• Status: Active Grant

• Current Assignee: Corcym SRL (LivaNova Plc)
• Original Assignee: Sorin Biomedica Cardio Srl (LivaNova Plc)
• Inventors: Burriesci, Gaetano, Righini, Giovanni, Bergamasco, Giovanni
• Granted Patent: US 8,006,535 B2
• Time in Patent Office: Days
• US Class Current: 606/198
• CPC Class Codes: A61F 2/2415 Manufacturing methods
• CPC Class Codes: A61F 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• CPC Class Codes: A61F 2/9524 Iris-type crimpers
• CPC Class Codes: B25B 27/10 inserting fittings into hoses
• CPC Class Codes: Y10T 29/53578 Lever operated
• CPC Class Codes: Y10T 29/53678 Compressing parts together face to face

Abstract

A device for crimping an implantable device or a part thereof between a radially expanded condition and a radially contracted condition, includes first and second annular bodies arranged about a common axis, and a ring-like array of linear crimping elements having respective opposite ends linked to the first and second annular bodies, respectively. These annular bodies are relatively rotatable around the common axis between a first position, wherein the annular array of crimping elements define a wider orifice for receiving a device to be crimped, and a second position, wherein the annular array of crimping elements define a narrower orifice.

Claims

1. A device for crimping an expandable prosthetic heart valve, the device comprising:

a first annular body and a second annular body arranged for relative rotation generally about an axis; and

an array of linear crimping elements having first ends coupled to the first annular body and second ends coupled to the second annular body;

wherein the first body and the second body are configured to rotate about the axis between a first position, wherein the crimping elements define a first diameter orifice and a second position, wherein the crimping elements define a second diameter orifice.

2. The device of claim 1 further including a brake member selectively actuatable to prevent the relative angular rotation of the first and second annular bodies.

3. The device of claim 1, wherein the crimping elements include a plurality of flexible elements extending in a generally serpentine pattern between the first and second annular bodies, wherein the pattern includes portions of the flexible elements extending between the first and the second annular bodies to define the crimping elements.

4. The device of claim 3, wherein the flexible elements are elastic to allow for the variation of the distance of the respective opposite ends of the crimping elements in the first and the second position.

5. The device of claim 3, wherein the flexible elements are substantially unextendable elements, whereby the crimping elements are generally loose in the first position and become increasingly taut as the first and second annular bodies move towards the second position.

6. The device of claim 1 further including a peripheral rim fixed to the second annular body and extending around the first annular body, such that the first and the second annular bodies are generally centered about the axis.

7. The device of claim 6 further including:

a third annular body, wherein the first annular body is interposed between the second and the third annular bodies, the first annular body adapted for relative rotation with respect to the second and the third annular bodies, and

a second array of linear crimping elements provided between the first annular body and either of the second and third annular bodies.

8. The device of claim 7 further including at least one flexible member extending in a generally serpentine pattern, wherein the pattern includes portions of the flexible member extending between the second and the third annular bodies through the first annular body to define the arrays of linear crimping elements.

9. A kit for replacement of a diseased heart valve, the kit comprising a crimping tool, a heart valve prosthesis deployment tool or portion thereof, an expandable heart valve prosthesis, in which the crimping tool is sized and dimensioned to reduce the size of the heart valve prosthesis to aid in placement of the prosthesis on the heart valve prosthesis deployment tool.

10. The kit of claim 9 further comprising a diseased heart valve leaflet removal tool or portion thereof and a delivery system for guiding the deployment tool and the removal tool into the interior of a heart.

11. The kit of claim 9 further comprising a storage container sized and dimensioned to store the heart valve prosthesis in an expanded state.

12. The kit of claim 11 further comprising a solution for maintaining the integrity of the heart valve prosthesis prior to implantation.

13. The kit of claim 9, wherein the crimping tool is configured for uniformly compressing the heart valve prosthesis from an expanded state into a contracted state.

14. The kit of claim 9, wherein the crimping tool compresses the heart valve prosthesis without damaging leaflets on the heart valve prosthesis.

15. The kit of claim 10, wherein the crimping tool is sized and dimensioned to compress the heart valve prosthesis to obtain a compressed heart valve prosthesis, and to deliver the compressed heart valve prosthesis onto the delivery system.

16. The kit of claim 9, wherein the crimping tool is variably adjustable to compress and expand the heart valve prosthesis.

17. The kit of claim 9, wherein the deployment tool comprises a guide wire.

18. The kit of claim 9, wherein the deployment tool is reversibly lockable.

19. A device for crimping an expandable prosthetic heart valve comprising a first annular body and a second annular body arranged for relative rotation generally about an axis and an array of linear crimping elements defining an opening having a diameter, wherein rotation of the first body with respect to the second body about the axis causes a change in the diameter.

20. The device of claim 19 further comprising a prosthetic heart valve having an end portion generally disposed within the orifice.

21. A device for crimping a heart valve prosthesis onto a delivery system, said device comprising multiple crimping modules, each respective one of said crimping modules being located in distinct crimping planes from each other.

22. The device of claim 21 in which said crimping planes lie parallel to each other.

23. The device of claim 21 in which said crimping planes lie in a non-parallel relationship to each other.