Prosthetic Valve Crimping

• US 20140144000A1
• Filed: 02/26/2013
• Published: 05/29/2014
• Est. Priority Date: 11/27/2012
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Duffy, Niall, Gallagher, John, Punga, Karan, Stante, Glenn, Creaven, Marian, D'Alessandro, Alfonso, Gosal, Devin, Janis, Scott, Yokota, Dick, Young, Misha
• Granted Patent: US 9,199,348 B2
• Time in Patent Office: Days
• US Class Current: 29/505
• CPC Class Codes: A61F 2/0095 Packages or dispensers for prostheses or other implants for intraocular lenses A61F2/1691; for dental surgery A61C19/02
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• CPC Class Codes: A61F 2/9525 using a funnel
• CPC Class Codes: B23P 19/04 for assembling or disassembling parts
• CPC Class Codes: Y10T 29/49908 Joining by deforming
• CPC Class Codes: Y10T 29/53996 by deforming

Abstract

A crimping tool includes a housing portion defining a funnel segment and a suture locking mechanism positioned to lock sutures therein. One or more sutures can be coupled with a prosthesis and secured to the suture locking mechanism. The suture locking mechanism can be operated to draw the prosthesis through the funnel segment.

Claims

1. A crimping tool for compressing a prosthesis to a compressed arrangement, comprising:

a funnel segment;

a suture locking mechanism;

a plurality of sutures coupled to the prosthesis and the suture locking mechanism, the suture locking mechanism being operated to draw the prosthesis into the funnel segment and compress the prosthesis within the funnel segment.

2. The crimping tool of claim 1, wherein the suture locking mechanism includes a spring loaded pin for securing at least one of the plurality of sutures.

3. The crimping tool of claim 1, further comprising a spacer coupled to the funnel segment and including at least one channel for guiding loops of the prosthesis into the funnel segment.

4. The crimping tool of claim 1, further comprising a guide coupled to the funnel segment for guiding the sutures to the suture locking mechanism.

5. The crimping tool of claim 1, and further comprising a knob rotatable with respect to the funnel segment, the knob maintaining the suture locking mechanism.

6. The crimping tool of claim 1, further comprising a key configured to tension the sutures with the suture locking mechanism.

7. The crimping tool of claim 1, further comprising a suture loading tool configured to advance the plurality of sutures through the funnel segment.

8. The crimping tool of claim 1, further comprising a housing portion configured to rotatably engage the funnel segment such that rotation of the funnel segment causes the housing portion to move relative to the funnel segment.

9. The crimping tool of claim 1, wherein the suture locking mechanism comprises a plate maintaining a plurality of pins for securing the sutures.

10. The crimping tool of claim 1, wherein the funnel segment is sized to engage support arms of the prosthesis and, upon transition to the compressed arrangement, the funnel segment operates to rotate the support arms with respect to a frame of the prosthesis so as to extend the support arms in a direction away from the frame.

11. The crimping tool of claim 1, further comprising a spacer coupled to the funnel segment, the spacer configured to engage support arms of the prosthesis and prolapse the support arms as the prosthesis transitions to the compressed arrangement.

12. A method for compressing a prosthesis from an expanded arrangement to a compressed arrangement, comprising:

threading a plurality of sutures through the prosthesis;

threading the plurality of sutures through a funnel segment and a straight segment;

coupling the plurality of sutures to a suture locking mechanism; and

rotating the suture locking mechanism to draw the prosthesis into the funnel segment and compress the prosthesis within the funnel segment.

13. The method of claim 12, wherein the suture locking mechanism includes a spring loaded pin for securing at least one of the plurality of sutures.

14. The method of claim 12, further comprising:

providing a spacer coupled to the funnel segment for guiding loops of the prosthesis into the funnel segment.

15. The method of claim 12, further comprising:

coupling a guide to the funnel segment to guide the sutures into the suture locking mechanism.

16. The method of claim 12, wherein a knob maintains the suture locking mechanism and the knob is rotatable with respect to the funnel segment.

17. The method of claim 12, further comprising:

rotating a key coupled with the suture locking mechanism to tension the sutures.

18. The method of claim 12, further comprising:

providing a housing portion configured to rotatably engage the funnel segment; and

rotating the funnel segment to cause the housing portion to move relative to the funnel segment.

19. The method of claim 12, further comprising:

securing the sutures to the suture locking mechanism with a plate maintaining a plurality of pins.

20. The method of claim 12, wherein the funnel segment is sized to engage support arms of the prosthesis and, upon transition to the compressed arrangement, the funnel segment operates to rotate the support arms with respect to a frame of the prosthesis so as to extend the support arms in a direction away from the frame.

21. The method of claim 12, further comprising:

coupling a spacer to the funnel segment, wherein the spacer engages support arms of the prosthesis and prolapses the support arms as the prosthesis transitions to the compressed arrangement.