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11. 发明授权

US4257128A Endoprosthetic knee joint 失效
标题翻译：内假体膝关节
公开(公告)号：US4257128A
公开(公告)日：1981-03-24
申请号：US37514
申请日：1979-05-09
申请人： John T. Scales , Keith W. J. Wright
发明人： John T. Scales , Keith W. J. Wright
IPC分类号： A61F2/38 , A61F1/03
CPC分类号： A61F2/3854
摘要： An endoprosthetic knee joint device has femoral and tibial components respectively adapted for connection to the femur and tibia, and respective bearing surfaces for mutual articulatory engagement to simulate natural joint movements. It is now proposed that the femoral component has two transversely spaced sockets as bearing surfaces, and that the tibial component has two upstanding ball parts for respective articulation in the sockets. The ball parts can be separable, by the provision of stems engageable in apertures in the base part. Preferably, the sockets are enlarged relative to the balls to allow mutual rotation about the axis of the leg. Also, the sockets and balls can be of different material from their respective base parts, the latter suitably being of metal.
摘要翻译：假体内膝关节装置具有分别适于连接到股骨和胫骨的股骨和胫骨部件以及用于相互铰接的相应的支承表面以模拟自然关节运动。现在提出股骨部件具有作为支承表面的两个横向间隔开的插座，并且胫骨部件具有用于在插座中相应铰接的两个直立球部件。通过设置可接合在基部中的孔中的杆，球部件可以是可分离的。优选地，插座相对于球体增大，以允许围绕腿的轴线相互旋转。此外，插座和球可以是与它们各自的基部不同的材料，后者适当地是金属的。

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