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US 2010/0137995 A1Published application
Acetabular shell
AssigneeHowmedica Osteonics Corp.
InventorsWilliam Hale Shields, Viktor Erik Krebs
Life of this patent
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Abstract
An acetabular cup assembly for a prosthetic hip joint is disclosed. This assembly includes an outer shell having at least one shell extension, an adaptor having at least one adaptor extension, and an insert. The inclusion of an extension on the outer shell and an extension on the adaptor allows for easier manipulation and implantation of the assembly.
Claims25
A method of replacing an acetabulum of a patient comprising the steps of:
- inserting an outer shell in the acetabulum, the outer shell having at least one radially extending shell extension;
- inserting an adaptor having at least one radially extending adaptor extension in the outer shell;
- and
- inserting a bearing insert into the adaptor.
1 more element
2-3. (canceled)
A method of replacing an acetabulum of a patient comprising the steps of:
- inserting an outer shell in the acetabulum, the outer shell having at least one radially extending shell extension;
- affixing the radially extending shell extension to bone in the general area of the acetabulum;
- engaging an adaptor having at least one radially extending adaptor extension in the outer shell so that the adaptor is prevented from moving with respect to the outer shell;
- affixing the radially extending adaptor extension to bone in the general area of the acetabulum;
- and
- engaging a bearing insert into the adaptor so that the bearing insert is prevented from moving with respect to the out.
3 more elements
A method of replacing an acetabulum of a patient comprising the steps of:
- selecting an outer shell from a plurality of outer shells, each outer shell having at least one radially extending shell extension;
- deforming the radially extending shell extension;
- inserting the outer shell in the acetabulum;
- selecting an adaptor from a plurality of adaptors, each adaptor having at least one radially extending adaptor extension;
- deforming the radially extending adaptor extension;
- inserting the adaptor in the outershell
- selecting a bearing insert from a plurality of bearing inserts;
- and
- inserting the bearing insert into the adaptor.
6 more elements
Dependencies are inferred from the claim text.