Wagner, Christel M,Sokolov, Dimitri,Lee, Jordan,Williams, John L,Gomaa, Said T,Armacost, John M
申请号：
ES10174440
公开号：
ES2570453T3
申请日:
2009.06.30
申请国别(地区):
ES
年份:
2016
代理人:
摘要：
An orthopedic knee prosthesis (10) comprising: a femoral component (12) having a condyle surface (52, 54) curved in the sagittal plane； and a tibial support (14) having a support surface (32) configured to articulate with the condyle surface of the femoral component, in which the surface of the condyle (i) contacts the support surface (32) in a first contact point (112) on the surface of the condyle at a first level of bending, the first level of bending being less than about 30 ° and (ii) contacting the support surface (32) at a second contact point ( 114) on the surface of the condyle at a 2nd level of flexion, the 2nd level of flexion being in the range of 45 ° to 90 °, where (i) the surface of the condyle in the sagittal plane has a first radius of curvature in the first contact point measured tangentially to the surface of that point, (ii) the surface of the condyle in the sagittal plane has a 2nd radius of curvature at the 2nd contact point measured tangentially towards the surface of that point, (iii) the rate of the first radius of curvature in The ratio of the 2nd radius of curvature is in the range of 1.10 to 1.45, characterized in that the radius of curvature of the surface of the condyle has a gradual transition between the first and 2nd contact point.Una prótesis ortopédica de rodilla (10) que comprende: un componente femoral (12) que tiene una superficie de cóndilo (52, 54) curvada en el plano sagital； y un soporte tibial (14) que tiene una superficie de soporte (32) configurada para articularse con la superficie del cóndilo del componente femoral, en la cual la superficie del cóndilo (i) contacta a la superficie de soporte (32) en un primer punto de contacto (112) en la superficie del cóndilo a un primer nivel de flexión, siendo el primer nivel de flexión menos que alrededor de 30° y (ii) contacta a la superficie de soporte (32) en un 2º punto de contacto (114) en la superficie del cóndilo a un 2º nivel de flexión, estando el 2º nivel de flexión en el
