THREADED MODULAR HANDLE FOR A PROSTHESIS DELIVERY DEVICE

• US 20170056222A1
• Filed: 08/23/2016
• Published: 03/02/2017
• Est. Priority Date: 09/01/2015
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Bradway, Ryan C., Baxter, Charles L., Kratzberg, Jarin A.
• Granted Patent: US 10,925,762 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2/97 the outer sleeve being splittable
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2250/006 modular
• CPC Class Codes: A61F 2250/0069 Sealing means
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61F 2310/00017 Iron- or Fe-based alloys, e.g. stainless steel
• CPC Class Codes: A61F 2310/00023 Titanium or titanium-based alloys, e.g. Ti-Ni alloys

Abstract

A handle assembly for a prosthesis delivery device is described. The handle assembly comprises a stationary main handle having a proximal end and a distal end and an outer surface extending there between. A first handle extends proximally from the main handle and is rotationally moveable relative to the main handle, the first handle having a proximal end and a distal end and defining a first handle interior. A second handle extends distally from the main handle and is rotationally moveable relative to the main handle, the second handle having a proximal end and a distal end and defining a second handle interior. The first handle comprises a threaded internal surface extending between the proximal and distal ends and the second handle comprises a threaded internal surface extending between the proximal and distal ends.

Claims

1. A handle assembly for a prosthesis delivery device comprising:

a stationary main handle having a proximal end and a distal end and an outer surface extending therebetween;

a first handle extending proximally from the main handle and rotationally moveable relative to the main handle, the first handle having a proximal end and a distal end and defining a first handle interior;

a second handle extending distally from the main handle and rotationally moveable relative to the main handle, the second handle having a proximal end and a distal end and defining a second handle interior;

wherein the first handle comprises a threaded internal surface extending between the proximal and distal ends; and

wherein the second handle comprises a threaded internal surface extending between the proximal and distal ends.

2. The handle assembly of claim 1 wherein the threads formed on the inner surface of the first handle are variable pitch threads.

3. The handle assembly of claim 1 wherein the threads formed on the inner surface of the second handle are variable pitch threads.

4. The handle assembly of claim 2 wherein the thread pitch increases from a proximal to distal direction.

5. The handle assembly of claim 3 wherein the thread pitch increases from a distal to proximal direction.

6. The handle assembly of claim 1 wherein the threaded internal surface of the first handle comprises double start threads.

7. The handle assembly of claim 1 wherein the threaded internal surface of the second handle comprises double start threads.

8. The handle assembly of claim 1 wherein a first follower is disposed within the first handle interior and longitudinally moveable within the first handle interior.

9. The handle assembly of claim 1 wherein a second follower is disposed within the second handle interior and longitudinally moveable within the second handle interior.

10. The handle assembly of claim 8 wherein the first follower comprises a proximal end and a distal end and an outer surface extending therebetween and wherein a sheath extends proximally from the proximal end of the first follower.

11. The handle assembly of claim 9 wherein the second follower comprises a proximal end and a distal end and an outer surface extending therebetween and wherein an inner cannula is coupled to the second follower.

12. The handle assembly of claim 10 wherein the first follower comprises at least one protrusion extending radially outwardly from the outer surface, and wherein the at least one protrusion comprises at least one of a dome shape, trapezoidal shape, spherical shape and a rounded trapezoidal shape.

13. The handle assembly of claim 11 wherein the second follower comprises at least one protrusion extending radially outwardly from the outer surface and wherein the at least one protrusion comprises at least one of a dome shape, trapezoidal shape, spherical shape and a rounded trapezoidal shape.

14. The handle assembly of claim 12 wherein the at least one protrusion extending radially outwardly from the outer surface of the first follower is engageable with the threads formed on the inner surface of the first handle.

15. The handle assembly of claim 13 wherein the at least one protrusion extending radially outwardly from the outer surface of the second follower is engageable with the threads formed on the inner surface of the second handle.

16. The handle assembly of claim 1 wherein a first rail is disposed within the first handle interior and wherein the first rail comprises a proximal and a distal end and an outer surface extending therebetween and wherein at least one longitudinal slot is formed in the outer surface.

17. The handle assembly of claim 1 wherein a second rail is disposed within the second handle interior and wherein the second rail comprises a proximal and a distal end and an outer surface extending therebetween and wherein at least one longitudinal slot is formed in the outer surface.

18. The handle assembly of claim 16 wherein a first follower is disposed within the first rail and wherein the first rail is configured to permit longitudinal movement of the first follower within the first rail and prevent rotational movement of the first follower.

19. The handle assembly of claim 17 wherein a second follower is disposed within the second rail and wherein the second rail is configured to permit longitudinal movement of the second follower within the second rail and prevent rotational movement of the second follower.

20. The handle assembly of claim 10 wherein rotational movement of the first handle relative to the main handle translates into longitudinal movement of the first follower within the first handle interior thereby distally retracting the sheath.

21. The handle assembly of claim 11 wherein rotational movement of the second handle relative to the main handle translates into longitudinal movement of the second follower within the second handle interior thereby proximally moving the inner cannula.