Vascular prosthesis deployment device and method of use

Patent metadata

Field	Value
Publication number	US-2016256306-A1
Application number	US-201615061107-A
Country	US
Kind code	A1
Filing date	Mar 4, 2016
Priority date	Mar 5, 2015
Publication date	Sep 8, 2016
Grant date	—

Abstract

A vascular prosthesis deployment device and related methods are disclosed. In some embodiments the deployment device may provide audible, tactile, or visual feedback to a practitioner as to the degree of deployment of a prosthesis. The deployment device may also provide mechanical advantage when deploying a prosthesis. The deployment device may be configured to incrementally deploy a prosthesis.

First claim

1 . A prosthesis deployment device comprising:
an elongate delivery catheter assembly configured to retain and deploy a prosthesis; a housing operably coupled to the delivery catheter; and an actuator operably coupled to the housing such that displacement of the actuator displaces a portion of the delivery catheter assembly to deploy the prosthesis; wherein the displacement of the delivery catheter assembly to deploy the prosthesis is in a direction parallel to a longitudinal axis of the deployment device and the displacement of the actuator to displace the portion of the delivery catheter assembly is in a direction disposed at an angle to the longitudinal axis of the deployment device.

2 . The prosthesis deployment device of claim 1 , wherein the actuator rotates about a pin when the actuator is displaced to deploy the prosthesis.

3 . The prosthesis deployment device of claim 2 , wherein the actuator is coupled to a ratchet slide such that rotation of the actuator about the pin displaces the ratchet slide parallel to the longitudinal axis of the deployment device.

4 . The prosthesis deployment device of claim 3 , wherein displacement of the ratchet slide incrementally advances a carrier along the ratchet slide.

5 . The prosthesis deployment device of claim 4 , wherein the delivery catheter assembly comprises an outer sheath and the outer sheath is fixedly coupled to the carrier.

6 . The prosthesis deployment device of claim 5 , wherein the delivery catheter assembly comprises an inner sheath fixedly coupled to the housing.

7 . The prosthesis deployment device of claim 1 , wherein the deployment device provides a mechanical advantage such that the force transferred to the portion of the delivery catheter to deploy the prosthesis is greater than an input force to displace the actuator.

8 . The prosthesis deployment device of claim 7 , wherein the ratio of the output force to the input force is 2:1.

9 . The prosthesis deployment device of claim 1 , wherein the actuator incrementally deploys the prosthesis.

10 . The prosthesis deployment device of claim 8 , wherein the actuator is configured to be displaceable along a stroke, and wherein one stroke of the actuator deploys only a portion of the prosthesis.

11 . The prosthesis deployment device of claim 10 , wherein the deployment device provides audible feedback at the end of a stroke.

12 . The prosthesis deployment device of claim 10 , wherein the deployment device provides tactile feedback at the end of a stroke.

13 . A prosthesis deployment device comprising:
an elongate delivery catheter assembly configured to retain and deploy a prosthesis; a housing operably coupled to the delivery catheter; and an actuator operably coupled to the housing such that displacement of the actuator displaces a portion of the delivery catheter assembly to deploy the prosthesis; wherein the deployment device provides a mechanical advantage such that the force transferred to the portion of the delivery catheter to deploy the prosthesis is greater than an input force to displace the actuator.

14 . The prosthesis deployment device of claim 13 , wherein the ratio of the output force to the input force is 2:1.

15 . The prosthesis deployment device of claim 13 , wherein the actuator is configured to be displaceable along a stroke, and wherein one stroke of the actuator deploys only a portion of the prosthesis.

16 . A prosthesis deployment device comprising:
an elongate delivery catheter assembly configured to retain and deploy a prosthesis; a housing operably coupled to the delivery catheter; and an actuator operably coupled to the housing such that displacement of the actuator displaces a portion of the delivery catheter assembly to deploy the prosthesis; actuator is displaceable along a stroke, and wherein one stroke of the actuator deploys only a portion of the prosthesis.

17 . The prosthesis deployment device of claim 16 , wherein the deployment device provides a mechanical advantage such that the force transferred to the portion of the delivery catheter to deploy the prosthesis is greater than an input force to displace the actuator.

18 . The prosthesis deployment device of claim 17 , wherein the ratio of the output force to the input force is 2:1.

19 . A method of deploying a prosthesis disposed within a delivery catheter, the method comprising:
obtaining a deployment device comprising an actuator operable coupled to a delivery catheter; and displacing the actuator in a first lateral direction, wherein displacement of the actuator in the first lateral direction displaces an outer sheath of the delivery catheter in a second longitudinal direction.

20 . The method of claim 19 , comprising displacing the actuator along a full stroke of the actuator to deploy only a portion of the prosthesis.

21 . The method of claim 20 , further comprising adjusting the position of the partially deployed prosthesis after displacing the actuator along a full stroke.

22 . A method of deploying a prosthesis disposed within a delivery catheter, the method comprising:
obtaining a deployment device comprising an actuator operable coupled to a delivery catheter; and displacing the actuator with a first input force the deployment device configured to transfer the first input force from the actuator to a portion of the delivery catheter such that the force exerted on the portion of the delivery catheter is greater than the first input force.

Assignees

• Merit Medical Systems Inc

Inventors

• Cindrich Christopher Noel
• Hall John William
• Eller Zeke
• Robinson Thomas
• Mower Wayne

Classifications

• A61F2/9517

  handle assemblies therefor · CPC title

• A61F2/844

  folded prior to deployment · CPC title

• A61F2/966 Primary

  with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod · CPC title

• A61F2002/9517

  Human Necessities · mapped topic