Howmedica Osteonics Corp.;Richardson, Rodney Ian Walter
发明人:
申请号：
EP12155109.7
公开号：
EP2489333A1
申请日:
2012.02.13
申请国别(地区):
EP
年份:
2012
代理人:
摘要：
A prosthetic hip implant system includes a prosthetic femoral component (31) having a stem portion (44), a neck portion (42) coupled to the stem portion and a part-spherical head (38) coupled to the neck portion. An acetabular component is provided which has a housing (12), the housing having a part-spherical inner surface (20) having an open end with a circumferential rim portion (22). The rim portion has a circumferential radially inwardly extending flange (24). A bearing element (14) is mounted within the housing (12) and has a part-spherical first outer surface region (30) 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 (32) extending a distance from the center less than the first radius to form a stop surface (34) for contacting the rim (22).
