Adjustable bone plate fixation system and metho

• US 20080243191A1
• Filed: 04/17/2008
• Published: 10/02/2008
• Est. Priority Date: 10/18/2001
• Status: Abandoned Application

• Current Assignee: OrthoIP, LLC
• Original Assignee: Fx Devices, LLC
• Inventors: Tipirneni, Kishore, Vassello, Wayne
• Application Number:
  US12/104,658
• Publication Number:
  US 20080243191A1
• Time in Patent Office: Days
• US Class Current: 606/280
• CPC Class Codes: A61B 17/742 having one or more longitudinal elements oriented along or parallel to the axis of the neck
• CPC Class Codes: A61B 17/744 the longitudinal elements coupled to an intramedullary nail
• CPC Class Codes: A61B 17/746 the longitudinal elements coupled to a plate opposite the femoral head
• CPC Class Codes: A61B 17/8004 with means for distracting or compressing the bone or bones
• CPC Class Codes: A61B 17/861 specially shaped for gripping driver
• CPC Class Codes: A61B 17/8625 Shanks, i.e. parts contacting bone tissue
• CPC Class Codes: A61B 17/8685 comprising multiple separate parts
• 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 17/8877 characterised by the cross-section of the driver bit

Abstract

An improved bone plate system which permits a user to customize the number and location of the fasteners so as to secure to a bone in a desired location. A bone plate system may comprise a frame, a track, an insertion niche, and one or more adjustable fastening plates and tension members.

Claims

1. A bone plate system comprising a frame having a track, said track comprising an insertion niche configured to receive onto said track at least one of a fastening plate and a tension member.

2. The bone plate system of claim 1, wherein said fastening plate is configured to adjustably slide along said track to a desired position.

3. The bone plate system of claim 1, wherein said tension member is configured to adjustably slide along said track.

4. The bone plate system of claim 2, wherein said fastening plate is further configured to rotate about 90 degrees relative to said track to lock into a desired position.

5. The bone plate system of claim 2, wherein said fastening plate comprises an opening adapted to receive a fastener selected from group consisting of a cap, a bone screw, and a pin.

6. The bone plate system of claim 1, wherein said insertion niche is located substantially in the center of the track.

7. The bone plate system of claim 3, wherein said tension member is a spring.

8. The bone plate system of claim 1, wherein said tension member is configured to mate with said fastening plate after insertion onto said track.

9. The bone plate system of claim 3, said tension member configured to compress upon the application of stress.

10. The bone plate system of claim 1, wherein said bone plate system is substantially elongate.

11. The bone plate system of claim 1, comprising a shape selected from a group consisting of “

S”

-shape, “

I”

-shape, and “

L”

-shape.

12. The bone plate system of claim 1, wherein said bone plate system is comprised of a material selected from a group consisting of stainless steel, a metal alloy, and a plastic.

13. The bone plate system of claim 1, said insertion niche configured to receive at least two fastening plates and at least two tension members onto said track, wherein said fastening plates and said tension members are configured to adjustably slide along said track to a desired position.

14. The bone plate system of claim 1, wherein said fastening plate comprises an opening adapted to receive a lagwire system, said lagwire system comprising:

a head component configured to attach to one of said bone portions;

a wire having a first end and a second end, wherein said first end of said wire is configured to mate with said head component; and

a cap configured to mate with said second end of said wire.

15. The bone plate system of claim 14, wherein said wire having a first interface component and said cap having a second interface component, wherein said first and second interface component are configured to mate such that said cap translates in only one direction.

16. The bone plate system of claim 14, wherein said cap includes a center hole for receiving said wire and additional openings for facilitating expansion of said cap.

17. The bone plate system of claim 14, further including a tensioner for applying tension to said wire.

18. The bone plate system of claim 17, wherein said tensioner includes a gauge to determine the amount of tension.

19. A method for applying a compressive load to a bone fragment, said method comprising:

sliding a fastening plate and a tension member along said track to a desired location, wherein said fastening plate and said tension member were inserted onto a track;

rotating said fastening plate about 90 degrees relative to said track to lock said fastening plate into a desired position;

fastening said bone plate system to a desired portion using a fastener.

20. The method of claim 19, wherein said fastener is selected from a group consisting of a bone screw and a cap.