Acetabular bone plate
AssigneeMayo Foundation for Medical Education and Research
InventorGeorge J. Haidukewych
Life of this patent
Estimating the term…
Abstract
An acetabulum bone plate includes a central, support portion which is shaped to cover the posterior wall of the acetabulum and a pair of tabs which extend therefrom and attach to the pelvis. Spikes formed on the underside of the central portion engage bone fragments and fix them in place when fragment screws that extend through openings in the central portion are tightened. The fragment screws are angled away from the hip joint.
Claims9
A bone plate for attachment to the acetabulum wall of a subject which comprises:
- a support portion formed from metal and curved in shape to wrap around a portion of the acetabulum wall, and having a width sufficient to cover a posterior region of the acetabulum wall extending substantially from its rim to its base;
- a pair of tabs integrally formed with the support portion and extending from opposite ends thereof, the tabs each having a width substantially less than the width of the support portion and each having openings for receiving bone screws that fasten the tabs to bone surface adjacent the acetabulum wall;
- and
- wherein the support portion includes openings for bone screws that fasten the support portion to the acetabulum wall.
A bone plate for attachment to the acetabulum wall of a subject which comprises:
- a support portion formed from metal and curved in shape to wrap around a portion of the acetabulum wall, and having a width sufficient to cover a posterior region of the acetabulum wall extending substantially from its rim to its base;
- a pair of tabs integrally formed with the support portion and extending from opposite ends thereof, the tabs each having a width substantially less than the width of the support portion and each having openings for receiving bone screws that fasten the tabs to bone surface adjacent the acetabulum wall;
- wherein the support portion includes openings for bone screws that fasten the support portion to the acetabulum wall;
- and
- wherein a buttress is formed along one side of the openings in the support portion to direct the bone screws therein away from the hip joint defined by the acetabulum wall.
A bone plate for attachment to the acetabulum wall of a subject which comprises:
- a support portion formed from metal and curved in shape to wrap around a portion of the acetabulum wall, having a substantially straight edge which is positioned along the rim of the acetabulum wall and a curved edge which is positioned near the base of the acetabulum wall, and having a width sufficient to cover a posterior region of the acetabulum wall extending substantially from its rim to its base;
- a pair of tabs integrally formed with the support portion and extending from opposite ends thereof, the tabs each having a width substantially less than the width of the support portion and each having opening for receiving bone screws that fasten the tabs to bone surface adjacent the acetabulum wall;
- and
- wherein the support portion includes openings for bone screws that fasten the support portion to the acetabulum wall.
A bone plate for attachment to the acetabulum wall of a subject which comprises:
- a support portion formed from metal and curved in shape to wrap around a portion of the acetabulum wall, and having a width sufficient to cover a posterior region of the acetabulum wall extending substantially from its rim to its base;
- a pair of tabs integrally formed with the support portion and extending from opposite ends thereof, the tabs each having a width substantially less than the width of the support portion and each having openings for receiving bone screws that fasten the tabs to bone surface adjacent the acetabulum wall;
- wherein the support portion includes openings for bone screws that fasten the support portion to the acetabulum wall;
- and
- wherein a buttress is formed along one side of the openings in the support portion to direct the bone screws passing therethrough at an angle from 45° to 60° away from perpendicular.
Dependencies are inferred from the claim text.