公开(公告)号：US06099570A

公开(公告)日：2000-08-08

申请号：US179253

申请日：1998-10-26

Applicant: Pacsal Livet ,  Heribert Frei ,  Rene Brack

Inventor： Pacsal Livet ,  Heribert Frei ,  Rene Brack

IPC: A61B17/58 ,  A61F2/38

CPC classification number: A61F2/3886 ,  A61F2/3868

Abstract: A knee joint prosthesis (1) comprises a tibia part (1) having a tibia bearing surface (10) and a bearing body (3) which is slidingly displaceably journalled on the tibia bearing surface (10) and which has bearing scallops (31) on its side which is remote from the tibia bearing surface (10). Furthermore, it comprises a femur part (5) which is movably arranged on the bearing scallops (31) of the bearing body (3) as well as comprising a guide piece (2) which is arranged to be rotationally fixed relative to the tibia part (1) and which permits only a displacement of the bearing body (3) in the sagittal direction relative to the tibia bearing surface (1). Furthermore, it comprises a coupling member which cooperates both with the guide piece (2) and with the femur part (5) and permits a rotation of the femur part (5) on the bearing body (3). The coupling member has a rotatably journalled pin (4) which extends in the direction of the longitudinal axis (14) of the tibia part (1) or of an axis of rotation parallel to it or in the direction of an axis which is inclined relative to the longitudinal axis of the tibia part (1) or to an axis of rotation parallel to it.

Abstract translation: 膝关节假体（1）包括具有胫骨支承表面（10）的胫骨部分（1）和可滑动地可移动地安装在胫骨支承表面（10）上且具有轴承扇形体（31）的轴承体（3） 在其远离胫骨支承表面（10）的一侧。 此外，其包括可移动地布置在轴承主体（3）的轴承扇形体（31）上的股骨部分（5），并且包括引导件（2），该引导件被布置成相对于胫骨部分旋转地固定 （1），并且仅允许轴承体（3）相对于胫骨承载面（1）在矢状方向上的位移。 此外，它包括一个联接构件，它与导向件（2）和股骨部分（5）配合，并允许股骨部分（5）在轴承体（3）上旋转。 联接构件具有可旋转的轴颈销（4），该销（4）沿着胫骨部分（1）的纵向轴线（14）的方向或与其平行的旋转轴线或沿相对倾斜的轴线的方向延伸 到胫骨部分（1）的纵向轴线或平行于其的旋转轴线。