Devices and methods for crimping a medical device

Patent metadata

Field	Value
Publication number	US-10188515-B2
Application number	US-201414272717-A
Country	US
Kind code	B2
Filing date	May 8, 2014
Priority date	May 13, 2013
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

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.

First claim

What is claimed is:

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.

Assignees

• Medtronic Vascular Galway Ltd
• Medtronic Vascular Inc

Inventors

• Duffy Niall
• Creaven Marian
• Haarstad Philip
• Harewood Frank
• Kovalsky Igor
• Quill Jason
• Gelfman Daniel
• Menk Ana
• Janzig Darren
• Gokaldas Shyam
• Warnock Kenneth

Classifications

• A61F2/95

  Instruments specially adapted for placement or removal of stents or stent-grafts · CPC title

• A61F2/2436

  Deployment by retracting a sheath · CPC title

• A61F2/0095

  Packages or dispensers for prostheses or other implants (for intraocular lenses A61F2/1691; for dental surgery A61C19/02) · CPC title

• B23P11/005

  by expanding or crimping · CPC title

• A61F2/9522

  Means for mounting a stent or stent-graft onto or into a placement instrument · CPC title