Orthopaedic bone plate

• US 6,355,042 B2
• Filed: 05/11/1999
• Issued: 03/12/2002
• Est. Priority Date: 03/31/1998
• Status: Expired due to Term

• Current Assignee: Zimmer Technology Incorporated (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Bristol-Myers Squibb Company
• Inventors: Meyers, John E., Winquist, Robert A., Price, Gregory G., Templeman, David, Benirschke, Steve, Desjardins, Raymond, Goulet, James, Duwelius, Paul, Patterson, Stanley W.
• Primary Examiner(s): Reip, David O.
• Assistant Examiner(s): Woo, Julian W.
• Application Number:
  US09/309,368
• Publication Number:
  US 20020013587A1
• Time in Patent Office: 1,036 Days
• Field of Search: 606/61, 606/69, 606/70, 606/71, 606/86
• US Class Current: 606/283
• 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

Abstract

An orthopaedic bone plate is coupled to a bone having an enlarged head at one end thereof which is attached to a shaft. The bone plate includes an elongate portion, a flared portion and an intermediate portion. The elongate portion is attachable to the bone shaft using a plurality of bone screws. The elongate portion generally defines a longitudinal axis. The flared portion is attachable to the bone head using at least one bone screw. The intermediate portion interconnects the elongate portion and the flared portion. The intermediate portion is structured and arranged to allow the elongate portion and the flared portion to move relative to each other in a direction transverse to the longitudinal axis when the elongate portion and the flared portion are attached to the bone.

Claims

1. An orthopaedic bone plate attachable to a bone using a plurality of bone screws, said orthopaedic bone plate comprising:

an elongate portion attachable to a shaft of the bone using a plurality of the bone screws, said elongate portion generally defining a longitudinal axis; and

a thinned portion having a decreased relative thickness adjacent to and integral with said elongate portion, said thinned portion attachable to the bone using at least one of the bone screws, said thinned portion defining a means for allowing said thinned portion to move in a direction transverse to the longitudinal axis when said elongate portion is attached to the bone.

2. The orthopaedic bone plate of claim 1, wherein said allowing means of said thinned portion comprises a thickness of said thinned portion in the transverse direction.

3. The orthopaedic bone plate of claim 2, wherein said thickness allows said thinned portion to deflect in a direction generally toward the longitudinal axis when said thinned portion is attached to the bone.

4. The orthopaedic bone plate of claim 1, wherein said transverse direction is generally toward the longitudinal axis.

5. The orthopaedic bone plate of claim 1, wherein said elongate portion has a plurality of screw holes and said thinned portion has at least one screw hole.

6. The orthopaedic bone plate of claim 1, wherein each of said elongate portion and said thinned portion are respectively curved in at least one direction transverse to the longitudinal axis.

7. The orthopaedic bone plate of claim 6, wherein said elongate portion and said thinned portion are respectively curved to define a compound curvature of the bone plate in transverse directions generally toward and away from the longitudinal axis.

15. The orthopaedic bone plate of claim 1, wherein said thinned portion includes a tapered thinned portion.

16. The orthopaedic bone plate of claim 1, further comprising a flared portion attachable to a head of the bone using at least one of the bone screws, said thinned portion interconnecting said elongate portion with said flared portion.

17. The orthopaedic bone plate of claim 16, wherein said flared portion has a thickness in the transverse direction which is greater than a thickness of said thinned portion.

8. An orthopaedic bone plate attachable to a bone using a plurality of bone screws, said orthopaedic bone plate comprising:

an elongate portion attachable to a shaft of the bone using a plurality of the bone screws, said elongate portion generally defining a longitudinal axis; and

a thinned portion having a decreased relative thickness adjacent to and integral with said elongate portion, said thinned portion attachable to the bone using at least one of the bone screws, said thinned portion being structured and arranged to allow said thinned portion to move in a direction transverse to the longitudinal axis when said elongate portion and said thinned portion are attached to the bone.

9. The orthopaedic bone plate of claim 8, wherein said thinned portion has a thickness in the transverse direction which allows said elongate portion and said thinned portion to move relative to each other in the transverse direction when said elongate portion and said thinned portion are attached to the bone.

10. The orthopaedic bone plate of claim 9, wherein said thickness allows said thinned portion to permanently deflect in a direction generally toward the longitudinal axis when said elongate portion and said thinned portion are attached to the bone.

11. The orthopaedic bone plate of claim 8, wherein said transverse direction is generally toward the longitudinal axis.

12. The orthopaedic bone plate of claim 8, wherein said elongate portion has a plurality of screw holes and said thinned portion has at least one screw hole.

13. The orthopaedic bone plate of claim 8, wherein each of said elongate portion and said thinned portion are respectively curved in at least one direction transverse to the longitudinal axis.

14. The orthopaedic bone plate of claim 13, wherein said elongate portion and said thinned portion are respectively curved to define a compound curvature of the bone plate in transverse directions generally toward and away from the longitudinal axis.

18. The orthopaedic bone plate of claim 8, wherein said thinned portion includes a tapered thinned portion.

19. The orthopaedic bone plate of claim 8, further comprising a flared portion attachable to a head of the bone using at least one of the bone screws, said thinned portion interconnecting said elongate portion with said flared portion.

20. The orthopaedic bone plate of claim 8, wherein said flared portion has a thickness in the transverse direction which is greater than a thickness of said thinned portion.