Modular acetabular surgical implant assembly
AssigneeDePuy Synthes Products, Inc.
InventorsPaul P. Lewis, Ian J. Flatters
Life of this patent
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Abstract
An orthopaedic prosthetic system includes a plate having one or more flanges and an acetabular shell component. Each flange includes a surface configured to engage a patient's bone. The plate also includes a central ring that engages a lip extending from an outer surface of the shell component. The ring may be mechanically attached to the lip using multiple fasteners. The system may include multiple plates each having a different configuration from other plates, and may also include multiple shell components each having a different configuration from other shell components. Methods for assembling and using the prosthetic system are also disclosed.
Claims20
An orthopaedic prosthetic system comprising:
- a plate comprising a central ring and one or more flanges, wherein a plurality of apertures are defined in the central ring, and wherein each flange of the one or more flanges extends radially away from a corresponding predetermined position on the central ring, and wherein each of the one or more flanges includes a proximal surface to engage a patient's bone;
- and
- an acetabular shell component comprising a distal rim, a convex outer wall extending from the distal rim, and a circumferential lip positioned on the outer wall and extending away from the outer wall, wherein the lip is separated from the distal rim by a lateralization distance, and wherein an inclination angle is defined between a first imaginary plane defined by the lip and a second imaginary plane defined by the distal rim, and wherein a plurality of apertures are defined in the lip;
- wherein the plate is configured to be positioned on the acetabular shell component such that each aperture of the central ring is aligned with a corresponding aperture of the lip of the acetabular shell component;
- and
- wherein the outer wall of the acetabular shell component comprises an annular outer surface that extends from the distal rim to a hemispherical outer surface, and wherein when the plate is positioned on the acetabular shell component a distal surface of the central ring engages a proximal surface of the lip and the central ring receives the hemispherical outer surface of the acetabular shell component.
A method for assembling an orthopaedic prosthesis, the method comprising:
- selecting a first plate from a plurality of plates, wherein each plate of the plurality of plates comprises a central ring and one or more flanges, wherein each flange of the one or more flanges extends radially away from a corresponding predetermined position on the central ring, and wherein each of the one or more flanges includes a proximal surface to engage a patient's bone;
- selecting a first shell component from a plurality of acetabular shell components, wherein each acetabular shell component of the plurality of acetabular shell components comprises a distal rim, a convex outer wall extending from the distal rim, and a circumferential lip positioned on the outer wall and extending away from the outer wall, wherein the outer wall comprises an annular outer surface that extends from the distal rim to a hemispherical outer surface;
- and
- mechanically attaching the lip of the first shell component to the central ring of the first plate, comprising engaging a distal surface of the central ring of the first plate with a proximal surface of the lip of the first shell component, wherein the central ring of the first plate receives the hemispherical outer surface of the first shell component.
Dependencies are inferred from the claim text.