Prosthesis for simulating natural kinematics

    公开(公告)号:US10531948B2

    公开(公告)日:2020-01-14

    申请号:US15617393

    申请日:2017-06-08

    IPC分类号: A61F2/38 A61F2/08 A61F2/30

    摘要: A bearing component 2 for a joint replacement prosthesis comprises a first bearing element 4; a second bearing element 6, and a linking element 8, operatively connecting the first and second bearing elements 4, 6 and permitting relative motion there between. The flexible linking element 8 prevents dislocation of mobile bearings in a total knee replacement prosthesis. The invention also relates to a bridging element which retains the linking element 8 with some play, which acts as a ligament support 2051, and which causes a deflection of the line of action of a ligament 1018. A joint replacement prosthesis is also disclosed comprising a biasing element 1140 or a tensioning element 1220 operatively coupled to the artificial ligament 1018. The biasing element 1140 or tensioning element 1220 may be housed in the stem of a tibia tray 1006.

    PROSTHESIS FOR SIMULATING NATURAL KINEMATICS

    公开(公告)号:US20170265989A1

    公开(公告)日:2017-09-21

    申请号:US15617393

    申请日:2017-06-08

    申请人: Biomet UK Limited

    IPC分类号: A61F2/08 A61F2/30 A61F2/38

    摘要: A bearing component 2 for a joint replacement prosthesis comprises a first bearing element 4; a second bearing element 6, and a linking element 8, operatively connecting the first and second bearing elements 4, 6 and permitting relative motion there between. The flexible linking element 8 prevents dislocation of mobile bearings in a total knee replacement prosthesis. The invention also relates to a bridging element which retains the linking element 8 with some play, which acts as a ligament support 2051, and which causes a deflection of the line of action of a ligament 1018. A joint replacement prosthesis is also disclosed comprising a biasing element 1140 or a tensioning element 1220 operatively coupled to the artificial ligament 1018. The biasing element 1140 or tensioning element 1220 may be housed in the stem of a tibia tray 1006.