Trigger wire activation lever

• US 9,132,024 B2
• Filed: 06/18/2012
• Issued: 09/15/2015
• Est. Priority Date: 06/17/2011
• Status: Active Grant

• Current Assignee: Cook Medical Technologies, LLC (Cook Group Incorporated)
• Original Assignee: Cook Medical Technologies, LLC (Cook Group Incorporated)
• Inventors: Brinser, Steven
• Primary Examiner(s): Rodjom, Katherine
• Assistant Examiner(s): HOLLM, JONATHAN A
• Application Number:
  US13/525,746
• Publication Number:
  US 20120323302A1
• Time in Patent Office: 1,184 Days
• Field of Search: 606/108, 606/200, 623 111- 114, 623/1.23
• US Class Current: 1/1
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires

Abstract

An actuation assembly having at least one lever operably connected to one or more trigger wires which are operably connected to a stent retaining device for a stent graft introducer is disclosed. The lever or levers can be extended or detached from the introducer to remove the trigger wires.

Claims

1. A trigger wire release mechanism for releasing one or more retained ends of a prosthesis, the trigger wire release mechanism comprising:

a prosthesis retaining device having proximal and distal ends and which is arranged to engage at least one end of the prosthesis;

one or more trigger wires each having a distal end and a proximal end, the proximal end being arranged to selectively couple the prosthesis retaining device to the prosthesis;

a control mechanism comprising an elongate body member and a lever, wherein the elongate body member has an exterior surface and an interior surface, the interior surface defining a chamber extending longitudinally with the elongate body member, and wherein the lever is connected to the elongate body member on the exterior surface with a pivot configured to be disengaged by an operator to remove the lever from the control mechanism;

wherein each of the one or more trigger wire distal ends are operably connected to the lever to selectively disengage the prosthesis retaining device from the prosthesis and wherein when the operator removes the lever, the one or more trigger wires are withdrawn from the prosthesis.

2. The trigger wire release mechanism of claim 1, wherein the elongate body member of the control mechanism further comprises at least one access passageway extending between the chamber and the lever through which each of the one or more trigger wires extends.

3. The trigger wire release mechanism according to claim 1, wherein the proximal ends of the one or more of the trigger wires are connected to the proximal end of the prosthesis retaining device.

4. The trigger wire release mechanism according to claim 1, wherein the proximal ends of the one or more of the trigger wires are connected to the distal end of the prosthesis retaining device.

5. The trigger wire release mechanism according to claim 1, wherein the one or more trigger wires include a first set of trigger wires and a second set of trigger wires, the first set of trigger wires being operably connected to the proximal end of the prosthesis retaining device and the second set of trigger wires being operably connected to the distal end of the prosthesis retaining device.

6. The trigger wire release mechanism according to claim 5, wherein the elongate body member comprises two sections, the first section comprising the lever and the first set of trigger wires, and the second section comprising a second lever pivotally connected to the elongate body member on the exterior surface.

7. The trigger wire release mechanism according to claim 6, wherein the second lever is connected to the elongate body member with a releasable pivot connection configured to be disengaged by the operator to remove the second lever.

8. The trigger wire release mechanism according to claim 5, further comprising:

a second elongate body member and a second lever, wherein the second elongate body member has an exterior surface and an interior surface, the interior surface defining a chamber extending longitudinally with the second elongate body member, wherein the chambers of the first and second elongate bodies are in fluid communication, and wherein the second lever is pivotally connected to the second elongate body member on its exterior surface, and wherein the second set of trigger wires is operably connected to the second lever.

9. The trigger wire release mechanism according to claim 8, wherein the second lever and the second elongate body member are connected with a releasable pivot connection configured to be disengaged by the operator to remove the second lever.

10. A prosthesis deployment device, comprising:

a prosthesis having proximal and distal ends, further comprising at least one self-expanding stent;

a prosthesis retaining device having proximal and distal ends and which is attachable to at least one of the proximal and distal ends of the prosthesis;

one or more trigger wires each having a distal end and a proximal end, the proximal ends of the trigger wires being arranged to selectively couple the prosthesis retaining device to at least one of the proximal or distal ends of the prosthesis;

a control mechanism comprising an elongate body member and a lever, wherein the elongate body member has an exterior surface and an interior surface, the interior surface defining a chamber extending longitudinally with the elongate body member, and wherein the lever is connected to the elongate body member on the exterior surface with a releasable pivot connection configured to be disengaged by an operator to remove the lever from the control mechanism;

wherein at least one of the one or more trigger wire distal ends is operably connected to the lever to selectively disengage the prosthesis retaining device from the prosthesis wherein when the operator removes the lever, the one or more trigger wires are withdrawn from the prosthesis.

11. The prosthesis deployment device of claim 10, wherein the elongate body member of the control mechanism further comprises at least one access passageway extending between the chamber and the lever through which at least one of the one or more trigger wires extends.

12. The prosthesis deployment device of claim 10, wherein the proximal end of at least one trigger wire is connected to the proximal end of the prosthesis retaining device.

13. The prosthesis deployment device of claim 10, wherein the proximal end of at least one trigger wire is connected to the distal end of the prosthesis retaining device.

14. The prosthesis deployment device of claim 10, wherein the one or more trigger wires include a first set of trigger wires and a second set of trigger wires, the first set of trigger wires being operably connected to the proximal end of the prosthesis retaining device and the second set of trigger wires being operably connected to the distal end of the prosthesis retaining device.

15. The prosthesis deployment device of claim 14, wherein the elongate body member comprises two sections, the first section comprising the lever and the first set of trigger wires, and the second section comprising a second lever pivotally connected to the elongate body member on the exterior surface.

16. The prosthesis deployment device of claim 15, further comprising a releasable pivot connection between the second lever and the elongate body member.

17. The prosthesis deployment device of claim 16, further comprising an external manipulation section, wherein each of the proximal and distal ends of the prosthesis retaining device are attached to the prosthesis in such a manner that the prosthesis can be held in tension therebetween and that each end of the prosthesis can individually be moved in proximal and distal directions.

18. The prosthesis deployment device of claim 14, further comprising:

a second elongate body member and a second lever, wherein the second elongate body member has an exterior surface and an interior surface, the interior surface defining a chamber extending longitudinally with the second elongate body member, wherein the chambers of the first and second elongate bodies are in fluid communication, and wherein the second lever is pivotally connected to the second elongate body member on its exterior surface, and wherein the second set of trigger wires is operably connected to the second lever.

19. The prosthesis deployment device of claim 18, further comprising a releasable pivot connection between the second lever and the second elongate body member.

20. An intraluminal deployment device, comprising:

a prosthesis having proximal and distal ends, further comprising at least one self-expanding stent;

a prosthesis retaining device having proximal and distal ends and which is attachable to at least one of the proximal and distal ends of the prosthesis;

a plurality of trigger wires each having a distal end and a proximal end, the proximal ends of the trigger wires being arranged to selectively couple the prosthesis retaining device to at least one of the proximal or distal ends of the prosthesis;

a control mechanism comprising an elongate body member and a lever, wherein the elongate body member has an exterior surface and an interior surface, the interior surface defining a chamber extending longitudinally with the elongate body member, and wherein the lever is releasably and pivotally connected to and configured with the elongate body member on the exterior surface so that an operator can remove the lever;

wherein the distal ends of the plurality of trigger wires are operably connected to the lever to selectively disengage the prosthesis retaining device from the prosthesis and wherein when the operator removes the lever, the plurality of trigger wires are withdrawn from the prosthesis.