Tensioning device, kit and related method

• US 20070270878A1
• Filed: 03/30/2006
• Published: 11/22/2007
• Est. Priority Date: 03/30/2006
• Status: Abandoned Application

• Current Assignee: Depuy Products Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Products Incorporated (Johnson & Johnson)
• Inventors: Leisinger, Steven
• Application Number:
  US11/393,501
• Publication Number:
  US 20070270878A1
• Time in Patent Office: Days
• US Class Current: 606/103
• CPC Class Codes: A61B 17/8861 Apparatus for manipulating flexible wires or straps devices for inserting Kirschner wires A61B17/1697
• CPC Class Codes: A61B 17/8863 Apparatus for shaping or cutting osteosynthesis equipment by medical personnel
• CPC Class Codes: A61B 17/8869 Tensioning devices
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension

Abstract

A device for use in tensioning a cable around a long bone for use in orthopaedic procedures is provided. The device includes a body. The device also includes first connecting means operably associated with the body for connecting a first end of the cable to the device. The device also includes second connecting means operably associated with the body for connecting a second end of the cable to the device. The first connecting means and/or the second connecting means include a unidirectional locking mechanism for tightening the cable.

Claims

1. A device for use in tensioning a cable around a long bone for use in orthopaedic procedures, said device comprising:

a body, said body including a base and first and second space apart arms extending from the base, said first and second arms each including a closed end attached to the base and an open end opposed to the closed end;

first connecting means operably associated with one of the body and the first arm for connecting a first end of the cable to the device; and

second connecting means operably associated with one of the body and the second arm for connecting a second end of the cable to the device, at least one of said first connecting means and said second connecting means comprising a unidirectional locking mechanism for tightening the cable.

2. The device as in claim 1, wherein said body includes a base and first and second space apart arms extending from the base, said first and second arms each including a closed end attached to the base and an open end opposed to the closed end.

3. The device as in claim 2, wherein said first and second arms extend generally parallel to each other.

4. The device as in claim 1, wherein said unidirectional locking mechanism comprises a racheting mechanism.

5. The device as in claim 4, wherein said ratcheting mechanism comprises a pair of spaced apart wheels, each wheel having teeth formed thereon and biasing member to urge the teeth of wheels into engagement with each other, the wheels adapted for relative rotation therebetween in a first direction and for locked engagement in a second opposed direction.

6. The device as in claim 1, wherein said unidirectional locking mechanism comprises a cam locking mechanism.

7. The device as in claim 2, wherein said locking mechanism is positioned spaced from the open end of one of said first arm and said second arm.

8. The device as in claim 2, further comprising guiding means attached to the open end of at least one of said first arm and said second arm for guiding the cable.

9. The device as in claim 8, wherein said guiding means comprises a pulley attached to the open end of at least one of said first arm and said second arm for guiding the cable.

10. The device as in claim 8, wherein said guiding means comprises a groove formed in the open end of least one of said first arm and said second arm.

11. The device as in claim 2, wherein one of said one of said first connecting means and said second connecting means is operably associated with one of said first arm and said second arm.

12. The device as in claim 10, wherein one of said one of said first connecting means and said second connecting means includes a clamping mechanism attached to one of said first arm and said second arm.

13. The device as in claim 10, wherein one of said one of said first connecting means and said second connecting means is defined by an opening formed in one of said first arm and said second arm for slidably receiving the cable.

14. A kit for use in orthopaedic procedures on a long bone, said kit comprising:

a cable; and

a device including a base and first and second spaced-apart arms extending from the base, said first and second arms each including a closed end attached to the base and an open end opposed to the closed end, said device also including first connecting means, said first connecting means connected to said first arm for connecting a first end of the cable to the device, said device further including second connecting means connected to said second arm for connecting a second end of the cable to the device, said first connecting means comprising a unidirectional locking mechanism for tightening the cable.

15. The kit as in claim 14, wherein said first and second arms extend generally parallel to each other.

16. The kit as in claim 14, wherein said unidirectional locking mechanism comprises a ratcheting mechanism.

17. A method for combining bone fragments on a long bone of a patient, comprising the steps of:

providing a device including a body having a base and first and second spaced-apart arms extending from the base and having a tensioning device connected to the second arm

providing a cable;

securing the cable to the first arm of the device;

wrapping the cable around the long bone;

securing the cable to the second arm of the device; and

tensioning the cable with the tensioning device.

18. The method as in claim 17:

wherein said step of securing the cable to the first arm of the device comprises the step of securing the cable to the distal end of the first arm of the device; and

wherein said step of securing the cable to the second arm of the device comprises the step of securing the cable to the distal end of the second arm of the device.

19. The method as in claim 17:

wherein said step of securing the cable to the first arm of the device comprises the step of securing the cable to the proximal end of the first arm of the device; and

wherein said step of securing the cable to the second arm of the device comprises the step of securing the cable to the proximal end of the second arm of the device.

20. The method as in claim 17, further comprising the step of crimping the cable.