公开(公告)号：WO1998002116A1

公开(公告)日：1998-01-22

申请号：PCT/US1997010265

申请日：1997-06-12

Applicant: WRIGHT MEDICAL TECHNOLOGY, INC.

Inventor： WRIGHT MEDICAL TECHNOLOGY, INC. ,  BLAHA, J., David ,  WHITE, Stephen, E. ,  PAXSON, Robert, D. ,  BUCHANAN, Dennis, J.

IPC: A61F02/38

CPC classification number: A61F2/38 ,  A61F2/3868 ,  A61F2/3877 ,  A61F2002/30133 ,  A61F2002/30369 ,  A61F2002/30616 ,  A61F2002/30708 ,  A61F2002/30802 ,  A61F2002/30878 ,  A61F2002/30884 ,  A61F2002/30945 ,  A61F2220/0033 ,  A61F2230/0015 ,  A61F2250/0084 ,  A61F2310/00029

Abstract: This invention is a knee prosthesis (11) including a tibial component (47) for mounting to the proximal end of a tibia, and a femoral component (23) for mounting to the distal end of a femur. At least the face surface (31) of the medial condylar portion of the femoral component (23) may be preferably substantially congruent with the face surface (45) of a medial cavity in the upper surface of the tibial component so that substantially complete surface to surface contact between the face surface (45) of the medial cavity in the upper surface of the tibial component (47), and the face surface (31) of the medial condylar portion of the femoral component (23), is provided throughout a significant portion of the range of flexion of the knee joint. The tibial component (47) may include a base member (53), an articular bearing member (67) movably positioned on the upper surface of the base member (53), and structure (61) for restricting the movement of the lateral portion of the articular bearing (67) member relative to the base member, to allow a swinging motion thereof relative to the medial portion of the articular bearing member.

Abstract translation: 本发明是一种膝关节假体（11），其包括用于安装到胫骨近端的胫骨部件（47）和用于安装到股骨远端的股骨部件（23）。 至少股骨部件（23）的内髁部分的面部表面（31）可以优选地与胫骨部件的上表面中的内侧面的表面（45）大致一致，使得基本上完整的表面 在胫骨部件（47）的上表面中的内侧面的表面（45）与股骨部件（23）的内侧髁部分的面表面（31）之间的表面接触被提供在整个有效的位置 膝关节屈曲范围的一部分。 胫骨部件（47）可以包括基部构件（53），可移动地定位在基部构件（53）的上表面上的关节轴承构件（67）和用于限制基部构件 所述关节轴承（67）构件相对于所述基座构件，以允许其相对于所述关节轴承构件的中间部分的摆动运动。