发明名称 |
ACETABULAR CUP WITH ROTATABLE BEARING |
摘要 |
A prosthetic hip implant system includes a prosthetic femoral component having a stem portion, a neck portion coupled to the stem portion and a part-spherical head coupled to the neck portion. An acetabular component is provided which has a housing, the housing having a part-spherical inner surface having an open end with a circumferential rim portion. The rim portion has a circumferential radially inwardly extending flange. A bearing element is mounted within the housing and has a part-spherical first outer surface region engaging the part-spherical inner surface of the housing. The part-spherical first outer surface region extends at a first radius from a center. The bearing element has a second part-spherical outer surface region extending a distance from the center less than the first radius to form a stop surface for contacting the rim. |
申请公布号 |
US2012209397(A1) |
申请公布日期 |
2012.08.16 |
申请号 |
US201113028621 |
申请日期 |
2011.02.16 |
申请人 |
RICHARDSON RODNEY IAN WALTER;HOWMEDICA OSTEONICS CORP. |
发明人 |
RICHARDSON RODNEY IAN WALTER |
分类号 |
A61F2/32 |
主分类号 |
A61F2/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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