Devices and methods for crimping a medical device

• US 10,188,515 B2
• Filed: 05/08/2014
• Issued: 01/29/2019
• Est. Priority Date: 05/13/2013
• Status: Active Grant

• Current Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Original Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Inventors: Duffy, Niall, Creaven, Marian, Haarstad, Philip, Harewood, Frank, Kovalsky, Igor, Quill, Jason, Gelfman, Daniel, Menk, Ana, Janzig, Darren, Gokaldas, Shyam, Warnock, Kenneth
• Primary Examiner(s): Travers, Matthew P
• Application Number:
  US14/272,717
• Publication Number:
  US 20140331475A1
• Time in Patent Office: 1,727 Days
• 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 2/243 Deployment by mechanical expansion
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• 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 11/005 by expanding or crimping
• CPC Class Codes: Y10T 29/49863 with prestressing of part
• CPC Class Codes: Y10T 29/53987 Tube, sleeve or ferrule

Abstract

Devices, systems, and methods for crimping a medical device are disclosed. More specifically, the present disclosure relates to devices, systems, and methods for reducing the diameter of a collapsible heart valve prosthesis to be loaded onto a delivery device. The devices, systems, and methods using at least one funnel to crimp the heart valve prosthesis and load it onto the delivery system.

Claims

1. A system for crimping a prosthetic valve comprising:

a first funnel, the first funnel comprising a first diameter of the first funnel, a tapered section, and a second diameter of the first funnel smaller than the first diameter of the first funnel;

a second funnel, the second funnel comprising a first diameter of the second funnel, a tapered section, and a second diameter of the second funnel smaller than the first diameter of the second funnel;

a delivery device, the delivery device comprising a strut support and an outer sheath, at least a portion of the delivery device extending through the first funnel and the second funnel wherein

the second diameter of the first funnel and the second diameter of the second funnel face towards each other,

the second diameter of the first funnel engages with the second diameter of the second funnel, and

the first diameter of the first funnel and the first diameter of the second funnel face away from each other; and

an actuator comprising a handle, a channel, a pull ring, and at least one wire operatively attached to the pull ring, an end of the at least one wire configured to attach to the prosthetic valve and pull the prosthetic valve through at least one of the first funnel and the second funnel through sliding of the pull ring;

wherein the first diameter of the first funnel is larger than the first diameter of the second funnel.

2. The system of claim 1, wherein an outer diameter of the outer sheath is less than or equal to the second diameter of the first funnel and the second diameter of the second funnel.

3. The system of claim 1, wherein the first funnel and the second funnel are releasably connected.

4. The system of claim 1, wherein the actuator is configured to engage to the second funnel.

5. The system of claim 1, wherein the actuator is configured to engage to the first diameter of the second funnel.

6. The system of claim 1, wherein the first funnel is configured to directly connect to the second funnel, and the second diameter of the second funnel is configured to be fitted within the second diameter of the first funnel.

7. The system of claim 1, wherein the second diameter of the first funnel is configured to be fitted against the second diameter of the second funnel.

8. The system of claim 1, wherein the prosthetic valve is a self-expanding valve.

9. The system of claim 1, wherein the outer sheath is configured to slide over the strut support.