WYSS, JOSEPH,WAGNER, CHRISTEL M,SOKOLOV, DIMITRI,LEE, JORDAN,WILLIAMS, JOHN L,GOMAA, SAID T,ARMACOST, JOHN M,RUMPLE, DANNY W
申请号：
ES09164245
公开号：
ES2375255T3
申请日:
2009.06.30
申请国别(地区):
ES
年份:
2012
代理人:
摘要：
A knee orthopedic prosthesis (10) comprising: a femoral component (12) having a condylar surface (100) which comprises a plurality of sections of curved surfaces such that it is curved in the sagittal plane, and a tibial support ( 14) which has a support surface (32) configured for its articulation 5 with the condylar surface of the femoral component, in which the condylar surface (i) contacts the support surface at a first contact point (102) on the condylar surface at a first degree of flexion less than about 30 °, (ii) contacts the support surface at a second point of contact (104) on the condylar surface at a second degree of flexion greater than about 45 °, and (iii) contacts the support surface at a third point of contact (106) on the condylar surface at a third degree of flexion greater than the second degree of flexion, at which the condylar surface at the Sagittal plane has a first radius of curvature (R1) at the first point of contact, a second radius of curvature (R2) at the second point of contact and a third radius of curvature (R3) at the third point of contact, characterized in that The condylar surface comprises a plurality of sections of curved surfaces in the sagittal plane between the first point of contact and the third point of contact, which have radii of curvature around a common center, each section of curved surface having a radius of different curvature, the third radius of curvature being greater than the second radius of curvature by at least 0.5 mm.Una prótesis (10) ortopédica de rodilla que comprende: un componente femoral (12) que presenta una superficie condilar (100) la cual comprende una pluralidad de secciones de superficies curvadas de manera que esté curvada en el plano sagital, y un soporte tibial (14) que presenta una superficie de soporte (32) configurada para su articulación 5 con la superficie condilar del componente femoral, en la que la superficie condilar (i) contacta con la superficie de soporte en un primer punto de con
