专利名称：Prosthetic knee joint with enhanced
posterior stabilization and dislocationprevention features
发明人：Pappas, Michael J.申请号：EP98121540.3申请日：19981117公开号：EP0916321B1公开日：20030625
摘要：The prosthetic knee joint is provided for resisting valgus-varus movements. Thejoint includes a femoral component having a superior bone engaging surface and aninferior bearing surface. A posterior notch extends anteriorly into the posterior end ofthe femoral component. The prosthetic knee joint further includes a tibial componenthaving an inferior bone engaging surface and a superior bearing surface. A plastic bearingis disposed between the femoral and tibial components. An inferior surface of the plasticbearing is in bearing engagement with the superior surface of the tibial component. Asuperior bearing surface of the plastic bearing is in articular bearing engagement with thebearing surface of the femoral component. The bearing includes a post projectingproximally from the superior surface. The post is slidably received in the posterior notchof the femoral component and resists valgus-varus moments imposed upon the joint. Thepost may include medial and lateral cam projections spaced from the superior bearingsurface of the bearing. The femoral component may include flanges at the posteriornotch for engagement between the cam projections and the superior bearing surface tosubstantially prevent dislocation.
申请人：PAPPAS MICHAEL J
地址：US
国籍：US
代理机构：Müller-Boré & Partner Patentanwälte
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