Hydraulic delivery systems with flow diversion devices and associated methods

Patent metadata

Field	Value
Publication number	US-11491007-B2
Application number	US-202016793904-A
Country	US
Kind code	B2
Filing date	Feb 18, 2020
Priority date	Feb 19, 2019
Publication date	Nov 8, 2022
Grant date	Nov 8, 2022

Abstract

A flow diversion device configured in accordance with embodiments of the present technology may include, for example, a housing including openings to channels that intersect at a junction. The flow diversion device may also include, for example, a flow control component disposed at the junction and movable to selectively form pathways for fluid communication based on a position of the flow control component. For example, when the flow control component is in a first position, a first pathway may allow fluid flow causing deployment of the prosthetic heart valve device and, when the flow control component is in a second position, a second pathway may allow fluid flow causing recapture of the prosthetic heart valve device. The flow diversion device may include a handle movable to position the flow control component in the first or second positions thereby selectively controlling fluid flow of the delivery system.

First claim

We claim:

1. A flow diversion device for controlling fluid flow in a delivery system to deploy a prosthetic heart valve device, the flow diversion device comprising:
a housing including:
a plurality of channels that intersect at a junction, and
a plurality of openings of the plurality of channels in fluid communication with the junction, wherein the plurality of openings includes a first opening and a second opening,

a flow control component disposed at the junction and movable to selectively form a plurality of pathways including a first pathway and a second pathway for fluid communication via the plurality of channels between the plurality of openings based on a position of the flow control component, wherein:
when the flow control component is in a first position, the first pathway is formed to allow fluid flow through at least the first opening toward a first chamber of the delivery system to cause deployment of the prosthetic heart valve device, and
when the flow control component is in a second position, the second pathway is formed to allow fluid flow through at least the second opening toward a second chamber of the delivery system to cause recapture of the prosthetic heart valve device, and

a handle operably coupled to the flow control component and movable to position the flow control component in at least either the first position or the second position to selectively allow fluid flow toward at least either the first chamber or the second chamber of the delivery system.

2. The flow diversion device of claim 1 , wherein, when the flow control component is in the first position, a third pathway is formed to drain fluid from the second chamber while the first pathway allows fluid flow toward the first chamber of the delivery system to collectively cause deployment of the prosthetic heart valve device.

3. The flow diversion device of claim 2 , wherein, when the flow control component is in the second position, a fourth pathway is formed to drain fluid from the first chamber while the second pathway allows fluid flow toward the second chamber of the delivery system to collectively cause recapture of the prosthetic heart valve device.

4. The flow diversion device of claim 3 , wherein the housing further comprises:
a third opening of the plurality of openings that forms an inlet of the first pathway when the flow control component is in the first position, and forms an inlet to the second pathway when the flow control component is in the second position; and
a fourth opening of the plurality of openings that forms an outlet of the first pathway when the flow control component is in the first position, and forms an outlet of the second pathway when the flow control component is in the second position.

5. The flow diversion device of claim 1 further comprising a bracket structure configured to receive and hold an inflator device to the housing of the flow diversion device.

6. The flow diversion device of claim 1 , wherein the flow control component comprises:
a shaft disposed in a bore of the housing and longitudinally movable to selectively form any of the plurality of pathways based on a longitudinal position of the shaft relative to the bore.

7. The flow diversion device of claim 6 further comprising a plurality of sealing members disposed at different locations of the shaft to form sealed compartments that are movable to selectively form the plurality of pathways.

8. The flow diversion device of claim 7 , wherein each of the plurality of sealing members is an O-ring disposed around the shaft.

9. The flow diversion device of claim 6 , wherein the handle is operable to toggle the shaft between the first position and the second position.

10. The flow diversion device of claim 1 , wherein the flow control component comprises a shaft disposed in the junction and rotatable to selectively form any of the pathways based on an angle of rotation of the shaft.

11. The flow diversion device of claim 10 , wherein the shaft comprises at least one rotatable channel that selectively forms any of the plurality of pathways based on an angle of rotation of the shaft.

12. The flow diversion device of claim 10 , wherein the flow diversion device comprises a four-way stopcock with three functional positions for diverting fluid flow.

13. The flow diversion device of claim 10 , wherein when the flow control component is in a third position, a third pathway forms to allow fluid flow through a third opening of the plurality of openings towards an inflator.

14. The flow diversion device of claim 10 , wherein the flow diversion device is configured to be external to a patient during an implantation procedure of the prosthetic heart valve device.

15. A system for delivering a prosthetic heart valve device into a heart of a patient, the system comprising:
an elongated catheter body including a delivery control component that is hydraulically driven to deploy and recapture the prosthetic heart valve device relative to the heart of the patient, and
a flow diversion device including:
a housing including a plurality of openings of a plurality of channels that intersect at a junction,
a flow control component disposed at the junction and movable to selectively form a plurality of pathways for fluid communication between the plurality of openings via the plurality of channels based on a position of the flow control component, wherein:
when the flow control component is in a first position, a first pathway is formed to allow fluid flow through a first opening of the plurality of openings to deploy the prosthetic heart valve device into the heart of the patient by filling a first chamber of the system, and
when the flow control component is in a second position, a second pathway is formed to allow fluid flow through a second opening of the plurality of openings to recapture the prosthetic heart valve device from the heart of the patient by draining the first chamber of the system, and

a handle movable to change a position of the flow control component between the first position and the second position to select from among the plurality of pathways for fluid communication with the first chamber.

16. The system of 15 , wherein, when the flow control component is in the first position, a third pathway is formed to allow fluid flow through a third opening of the plurality of openings to deploy the prosthetic heart valve device into the heart of the patient by draining a second chamber of the system.

17. The system of 16 , wherein, when the flow control component is in the second position, a fourth pathway is formed to allow fluid flow through a fourth opening of the plurality of openings to recapture the prosthetic heart valve device into the heart of the patient by filling the second chamber of the system.

18. The system of 17 , further comprising a handle of the elongated catheter body, which contains the second chamber.

19. The system of 17 , wherein the delivery control component contains the second chamber.

20. A flow diversion device that controls fluid flow in a system configured to implant a medical device in a patient, the flow diversion device comprising:
a housing including a plurality of openings of a plurality of channels that intersect at a junction;
a flow control component disposed at the junction and movable to form one or more pathways for fluid communication between the plurality of openings based on a position of the flow control component, wherein:
when the flow control component is in a first position, a first pa

Assignees

• Twelve Inc

Inventors

• Dueri Jean-Pierre
• Kenny Gavin
• Fox Jason
• Mclean Matthew

Classifications

• A61F2/9517

  handle assemblies therefor · CPC title

• A61F2/2436 Primary

  Deployment by retracting a sheath · CPC title

• A61F2/2427 Primary

  Devices for manipulating or deploying heart valves during implantation · CPC title

• A61F2/962

  having an outer sleeve · CPC title