Deployment handle for a prosthesis delivery device

Patent metadata

Field	Value
Publication number	US-10292850-B2
Application number	US-201514931311-A
Country	US
Kind code	B2
Filing date	Nov 3, 2015
Priority date	Nov 4, 2014
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

The present invention relates to a deployment handle for a prosthesis delivery device and to a delivery device including such a handle. The handle assembly facilitates the controlled release of a prosthesis from the delivery device, while ensuring that various deployment steps are performed in a particular sequential order. The handle assembly comprises a main handle and a second handle which is rotatably and/or longitudinally moveable relative to the main handle. The second handle has an initial position on the main handle such that it prevents access to, and premature manipulation of, a proximal stent release mechanism, until the stent graft has been at least partially unsheathed.

First claim

The invention claimed is:

1. A handle assembly for a prosthesis delivery device having a proximal end and distal end, the handle assembly comprising:
a main handle having a proximal end and a distal end;
a prosthesis release actuation mechanism disposed at least partially on the main handle and moveable relative to the main handle;
a motion translating mechanism disposed distal to and operatively connected to the prosthesis release actuation mechanism;
a prosthesis retention mechanism disposed at the proximal end of the delivery device and proximal to a prosthesis retention region and operatively connected to the motion translating mechanism, the prosthesis retention mechanism having a prosthesis capture condition and a prosthesis release condition;
wherein movement of the prosthesis release actuation mechanism causes movement of the motion translating mechanism thereby moving the prosthesis retention mechanism from the prosthesis capture condition to the prosthesis release condition;
wherein the prosthesis release actuation mechanism is circumferentially disposed about the main handle and rotationally moveable relative to the main handle;
wherein rotation of the prosthesis release actuation mechanism in a first direction effects rotation of the motion translating mechanism in a second direction and wherein rotation of the motion translating mechanism effects rotation of the prosthesis retention mechanism in a third direction;
wherein at least one of the first, second and third rotation directions is a different direction.

2. The handle assembly for a prosthesis delivery device of claim 1 further comprising a second handle disposed at least partially on the main handle and at least one of circumferentially and longitudinally moveable relative to the main handle, the second handle having a first position on the main handle in which movement of the prosthesis release actuation mechanism is prevented and a second position on the main handle in which movement of the prosthesis release actuation mechanism is permitted.

3. The handle assembly for a prosthesis delivery device of claim 2 , further comprising a sheath operatively connected to the second handle, the sheath extending proximally of the main handle, wherein the at least one of circumferential and longitudinal movement of the second handle retracts the sheath in a distal direction.

4. The handle assembly for a prosthesis delivery device of claim 2 , wherein the second handle is threadedly engaged with the main handle.

5. The handle assembly for a prosthesis delivery device of claim 1 , wherein the motion translating mechanism comprises a rotatable drum.

6. The handle assembly for a prosthesis delivery device of claim 1 , wherein an elongated filamentous material extends between the prosthesis release actuation mechanism and the motion translating mechanism.

7. The handle assembly for a prosthesis delivery device of claim 6 wherein the elongated filamentous material comprises at least one of a suture, string, wire, cord and thread.

8. The handle assembly for a prosthesis delivery device of claim 6 wherein a portion of the elongated filamentous material is wound about the motion translating mechanism.

9. The handle assembly for a prosthesis delivery device as in claim 1 wherein the prosthesis release actuation mechanism is threadedly engaged with an elongated rack mechanism, and wherein rotation of the prosthesis release actuation mechanism moves the rack mechanism longitudinally relative to the main handle.

10. A handle assembly for a prosthesis delivery device of claim 9 wherein an elongated filamentous material extends between a distal end of the rack mechanism and the motion translating mechanism and wherein the filamentous material operatively connects the prosthesis release actuation mechanism to the motion translating mechanism.

11. The handle assembly for a prosthesis delivery device of claim 1 , further comprising a cannula extending from the motion translating mechanism to the prosthesis retention mechanism.

12. The handle assembly for a prosthesis delivery device of claim 1 wherein at least one of the first, second and third rotation directions is the same direction.

13. A prosthesis delivery device having a proximal end and distal end, the prosthesis delivery device comprising:
a handle assembly at a distal end of the delivery device, the handle assembly comprising:
a main handle having a proximal end and a distal end;
a prosthesis release actuation mechanism disposed at least partially on the main handle and moveable relative to the main handle;
a motion translating mechanism disposed distal to and operatively connected to the prosthesis release actuation mechanism;
a prosthesis retention mechanism disposed at the proximal end of the delivery device and proximal to a prosthesis retention region and operatively connected to the motion translating mechanism, the prosthesis retention mechanism having a prosthesis capture condition and a prosthesis release condition;
wherein movement of the prosthesis release actuation mechanism causes movement of the motion translating mechanism thereby moving the prosthesis retention mechanism from the prosthesis capture condition to the prosthesis release condition;
wherein the prosthesis release actuation mechanism is circumferentially disposed about the main handle and rotationally moveable relative to the main handle;
wherein rotation of the prosthesis release actuation mechanism in a first direction effects rotation of the motion translating mechanism in a second direction and wherein rotation of the motion translating mechanism in a second direction effects rotation of the prosthesis retention mechanism in the second direction.

14. The prosthesis delivery device of claim 13 further comprising a second handle disposed at least partially on the main handle and at least one of circumferentially and longitudinally moveable relative to the main handle.

15. The prosthesis delivery device of claim 14 , further comprising a sheath operatively connected to the second handle and extending proximally of the main handle, wherein the at least one of circumferential and longitudinal movement of the second handle retracts the sheath in a distal direction.

16. The prosthesis delivery device of claim 14 , wherein the second handle is threadedly engaged with the main handle.

17. The prosthesis delivery device of claim 13 , wherein the motion translating mechanism comprises a rotatable drum.

18. The prosthesis delivery device of claim 13 wherein the prosthesis release actuation mechanism is threadedly engaged with an elongated rack mechanism, and wherein rotation of the prosthesis release actuation mechanism moves the rack longitudinally relative to the main handle.

19. The prosthesis delivery device of claim 18 wherein an elongated filamentous material extends between a distal end of the rack mechanism and the motion translating mechanism and wherein the filamentous material operatively connects the prosthesis release actuation mechanism to the motion translating mechanism.

20. The prosthesis delivery device of claim 13 , further including a cannula connected to and extending from the motion translating mechanism to the prosthesis retention mechanism.

Assignees

• Cook Medical Technologies Llc

Inventors

• Vad Siddharth
• Macatangay Edwin
• Neoh Wen Hong
• Skelton Eugene
• Wright Anthony

Classifications

• A61F2002/9505

  having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument · CPC title

• A61F2002/9665

  with additional retaining means · CPC title

• A61F2/82

  Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents (stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07) · CPC title

• A61F2/9517 Primary

  handle assemblies therefor · CPC title

• A61F2/07

  Stent-grafts · CPC title