Variable angle locking rotation correction plate

Patent metadata

Field	Value
Publication number	US-9895181-B2
Application number	US-201715616357-A
Country	US
Kind code	B2
Filing date	Jun 7, 2017
Priority date	Jun 30, 2014
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

A bone plate sized and shaped for fixation to one of a phalangeal and metacarpal bone includes a head extending from a first end to a second end and having an elongated curved plate hole extending therethrough along a curved path from a first end to a second end, a plate hole axis of the elongated curved plate hole extending orthogonally from a top surface to a bone contacting surface of the bone plate and a shaft extending from the head, the shaft including an elongated shaft plate hole extending therethrough and elongated in a direction extending orthogonal to a central longitudinal axis of the bone plate, a plate hole axis of the elongated shaft plate hole extending orthogonally from the top surface to the bone contacting surface.

First claim

What is claimed is:

1. A method for bone fixation, comprising:
positioning a bone plate over a dorsal surface of one of a phalangeal and metacarpal bone, the bone plate extending from a first end having a head to a second end having a shaft;
inserting a first fixation element into an elongated curved plate hole extending through the head by a first depth, wherein the elongated curved plate hole extends along a curved path from a first end to a second end, a plate hole axis of the elongated curved plate hole extending orthogonally from a top surface to a bone contacting surface of the bone plate;
sliding the bone plate over the bone within a first range of motion limited by a length of the elongated curved plate hole to a desired location over the bone;
inserting a second fixation element into an elongated shaft plate hole extending through the shaft and elongated in a direction extending orthogonal to a central longitudinal axis of the bone plate;
sliding the bone plate over the bone within a second range of motion limited by a length of the elongated shaft plate hole to a desired location over the bone; and
inserting a third fixation element into the second fixation element hole to lock the bone plate over the bone.

2. The method of claim 1 , further comprising:
rotating the bone plate about the first fixation element to the desired location prior to insertion of second and third fixation elements thereinto.

3. The method of claim 1 , further comprising:
tightening the first fixation element into the elongated curved plate hole to a second depth greater than the first depth to lock the bone plate to the bone.

4. The method of claim 1 , further comprising:
tightening the second fixation element.

5. The method of claim 4 , wherein the head includes first and second variable angle plate holes extending therethrough on a second side of the central longitudinal axis.

6. The method of claim 1 , wherein the elongated curved plate hole is positioned on a first side of the central longitudinal axis.

7. The method of claim 1 , wherein the head includes a first notch on the first end between the elongated curved plate hole and the first variable angle plate hole, the first notch formed as an indentation on an outer wall of the bone plate.

8. The method of claim 1 , wherein the shaft further includes third, fourth and fifth variable angle plate holes extending therethrough and positioned between the head and the elongated shaft plate hole.

9. The method of claim 1 , wherein the elongated shaft plate hole is centered about the central longitudinal axis.

10. The method of claim 1 , wherein the shaft includes a plurality of shaft notches formed in first and second side walls thereof, the shaft notches defining reduced width regions of the shaft.

11. A method for fixation of one of a phalangeal and metacarpal bone, comprising:
positioning a bone plate over a dorsal surface of the bone in a target orientation so that an elongated curved plate hole is positioned adjacent to a fracture near a section of intact bone, the bone plate extending from a first end having a head to a second end having a shaft, wherein the bone has not been pre-drilled;
inserting a first fixation element into the elongated curved plate hole extending through the head by a first depth, the elongated curved plate hole extending along a curved path from a first end to a second end, a plate hole axis of the elongated curved plate hole extending orthogonally from a top surface to a bone contacting surface of the bone plate;
sliding the bone plate over the bone within a first range of motion limited by a length of the elongated curved plate hole to a desired location over the bone;
bending the bone plate to a desired curvature to more closely match the anatomy of the bone;
inserting a second fixation element into an elongated shaft plate hole extending through the bone plate and elongated in a direction extending orthogonal to a central longitudinal axis of the bone plate; and
sliding the bone plate over the bone within a second range of motion limited by a length of the elongated plate hole to a desired location over the bone.

12. The method of claim 11 , further comprising:
rotating the bone plate about the first fixation element to the desired location prior to insertion of second and third fixation elements thereinto.

13. The method of claim 11 , further comprising:
inserting a third fixation element into the second fixation element hole to lock the bone plate over the bone.

14. The method of claim 11 , further comprising:
tightening the first fixation elements into the elongated curved plate hole.

15. The method of claim 11 , wherein the elongated curved plate hole is positioned on a first side of the central longitudinal axis.

16. The method of claim 15 , wherein the head includes first and second variable angle plate holes extending therethrough on a second side of the central longitudinal axis.

17. The method of claim 11 , wherein the head includes a first notch on the first end between the elongated curved plate hole and the first variable angle plate hole, the first notch formed as an indentation on an outer wall of the bone plate.

18. The method of claim 11 , wherein the shaft further includes third, fourth and fifth variable angle plate holes extending therethrough and positioned between the head and the elongated shaft plate hole.

19. The method of claim 11 , wherein the elongated shaft plate hole is centered about the central longitudinal axis.

20. The method of claim 11 , wherein the shaft includes a plurality of shaft notches formed in first and second side walls thereof, the shaft notches defining reduced width regions of the shaft.

Assignees

• Depuy Synthes Products Inc

Inventors

• Hashmi Adam
• Kelly Lynn
• Touhalisky Daneen
• Fischer Thomas J

Classifications

• A61B17/8061 Primary

  specially adapted for particular bones (A61B17/70 and A61B17/74 take precedence) · CPC title