发明名称 |
Posterior stabilized knee with varus-valgus constraint |
摘要 |
A femoral component of a knee prosthesis has spaced condyle surfaces defining a notch therebetween. The notch defines an elongated cam housing having an anterior cam and a posterior cam at opposite ends of the housing. The tibial component of the knee prosthesis includes a platform and a bearing supported on the platform, the bearing defining bearing surfaces configured to articulate with the condyle surfaces. The tibial component includes a spine projecting superiorly from the bearing that defines an anterior face and a posterior face. The posterior face and the posterior cam define complementary curved surfaces configured for cooperative engagement when the femoral component and the tibial component are at a predetermined flexion angle. The cam housing is configured to form a gap between the posterior cam and the spine when the knee is normally extended. In another feature, the spine includes a stiffening pin extending therethrough.
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申请公布号 |
US2005192672(A1) |
申请公布日期 |
2005.09.01 |
申请号 |
US20050121408 |
申请日期 |
2005.05.04 |
申请人 |
WYSS JOE;DIETZ TERRY;VOSLER MARC C.;RUNNING DON |
发明人 |
WYSS JOE;DIETZ TERRY;VOSLER MARC C.;RUNNING DON |
分类号 |
A61F2/00;A61F2/30;A61F2/38;(IPC1-7):A61F2/38 |
主分类号 |
A61F2/00 |
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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