Deformable bone plates

• US 7,189,237 B2
• Filed: 11/19/2003
• Issued: 03/13/2007
• Est. Priority Date: 11/19/2002
• Status: Active Grant

• Current Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Original Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Inventors: Huebner, Randall J.
• Primary Examiner(s): RAMANA, ANURADHA
• Application Number:
  US10/717,402
• Publication Number:
  US 20040102777A1
• Time in Patent Office: 1,210 Days
• Field of Search: 606/69, 606/70, 606 71- 73
• US Class Current: 606/291
• CPC Class Codes: A61B 17/1728 for holes for bone plates or plate screws
• CPC Class Codes: A61B 17/1735 for rasps or chisels
• CPC Class Codes: A61B 17/1782 for the hand or wrist
• CPC Class Codes: A61B 17/80 Cortical plates , i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
• CPC Class Codes: A61B 17/8004 with means for distracting or compressing the bone or bones
• CPC Class Codes: A61B 17/8052 immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
• CPC Class Codes: A61B 17/8061 specially adapted for particular bones A61B17/70 and A61B17/74 take precedence
• CPC Class Codes: A61B 17/8085 with pliable or malleable elements or having a mesh-like structure, e.g. small strips A61B17/8071, A61B17/8076 take precedence
• CPC Class Codes: A61B 2090/061 for measuring dimensions, e.g. length
• CPC Class Codes: A61B 2090/067 for measuring angles

Abstract

Bone plates configured to be deformed after the bone plates have being secured to bone, apparatus including the bone plates, and methods of using the bone plates to fix bones.

Claims

1. A method of bone fixation, comprising:

securing anchor portions of a bone plate to respective bone regions disposed on opposing sides of a bone discontinuity; and

deforming the bone plate after the step of securing to change a relative angular disposition of the anchor portions and thus of the respective bone regions to which the anchor portions are secured,

wherein the step of deforming is performed with at least one tool, the method further comprising a step of engaging the bone plate with the at least one tool before the step of deforming,

wherein the step of engaging includes a step of placing a portion of the at least one tool into an opening of the bone plate, and

wherein the step of placing includes a step of rotating the at least one tool into threaded engagement with the bone plate.

2. The method of claim 1, wherein the step of securing includes a step of securing the bone plate to each of at least two bones.

3. The method of claim 1, wherein the step of securing includes a step of placing bone screws through openings of the anchor portions and into the respective bone regions.

4. The method of claim 1, wherein the step of securing includes a step of securing the anchor portions to a radius bone.

5. The method of claim 4, wherein the step of securing includes a step of securing the anchor portions adjacent a volar surface of the radius bone.

6. The method of claim 4, wherein the step of securing the anchor portions to a radius bone includes a step of securing the anchor portions to a distal portion of the radius bone.

7. The method of claim 1, wherein the step of deforming includes a step of twisting the anchor portions relative to one another.

8. The method of claim 1, wherein the step of deforming includes a step of bending the anchor portions relative to one another.

9. The method of claim 1, wherein the bone plate has a bridge region disposed between the anchor portions, and wherein the step of deforming includes a step of selectively deforming the bone plate within the bridge region.

10. The method of claim 1, wherein the step of deforming includes a step of adjusting the relative angular disposition of the bone regions to more closely approximate a natural alignment of the bone regions.

11. The method of claim 1, wherein the step of engaging also includes a step of gripping the bone plate with the at least one tool.

12. A method of bone fixation, comprising:

securing anchor portions of a unitary bone plate to respective bone regions disposed on opposing sides of a bone discontinuity by placing fasteners through apertures defined by each anchor portion; and

applying a deforming torque to the bone plate after the step of securing to change a relative angular disposition of the anchor portions and thus of the respective bone regions to which the anchor portions are secured,

wherein the step of applying a deforming torque is performed with at least one tool, further comprising a step of placing the at least one tool in threaded engagement with the bone plate.

13. The method of claim 12, wherein the step of securing includes a step of placing bone screws through the apertures and into the respective bone regions.

14. The method of claim 12, wherein the step of securing includes a step of securing the anchor portions to a radius bone or a finger bone.

15. The method of claim 12, wherein the bone plate has a bridge region disposed between the anchor portions, and wherein the step of applying a deforming torque includes a step of selectively deforming the bone plate within the bridge region.

16. The method of claim 12, wherein the step of placing the at least one tool includes a step of placing a pair of tools in threaded engagement with spaced apertures of the bone plate, and wherein the step of applying a deforming torque includes a step of selectively deforming the bone plate between the spaced apertures using the pair of tools.

17. A method of bone fixation, comprising:

securing anchor portions of a unitary bone plate to respective bone regions disposed on opposing sides of a discontinuity in a bone by placing bone screws through apertures defined by the anchor portions;

placing at least a pair of tools into a pair of openings disposed at spaced positions along the bone plate; and

applying a deforming torque to the bone plate via the pair of tools after the step of securing to change a relative angular disposition of the anchor portions and thus of the respective regions of the bone to which the anchor portions are secured,

wherein the step of placing includes a step of placing the pair of tools in threaded engagement with the pair of openings.

18. The method of claim 17, wherein the step of securing includes a step of securing the anchor portions to a distal portion of a radius bone.