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    • 77. 发明申请
    • ARTIFICIAL KNEE JOINT
    • 人造膝关节
    • US20150018960A1
    • 2015-01-15
    • US13260686
    • 2009-03-27
    • Gaser Nmi El ZoghbiUlrich Nmi Reinbold
    • Gaser Nmi El ZoghbiUlrich Nmi Reinbold
    • A61F2/38
    • A61F2/3836A61F2/3859A61F2/3886A61F2/389A61F2002/302A61F2230/0065
    • An artificial knee joint (1) is described and comprises a femoral component (10) and a tibial component (30), for attachment to the femur (2) and tibia (3) of a patient (4) respectively. The femoral component (10) comprises a lateral condyle (11) and a medial condyle (12) which extend from the posterior (13) to the anterior (14) of the femoral component (10). A femoral gap (15) is provided between the lateral (11) and medial (12) condyles extending from the posterior (13) toward the anterior (14) of the femoral component (10). The lateral (11) and medial (12) condyles are joined at the anterior (13) of the femoral component (10) to form a patella tracking path or bearing surface (16) which is located at and forms the anterior end of the gap (17). A femoral cam (18) is provided bridging the posterior ends of both the lateral (11) and medial (12) condyles, and forms a posterior end of the gap (19), wherein the femoral cam (18) is structured to have the shape of a section of a ring (20). The tibial component (30) is provided with two approximately symmetric articulation bearing surfaces (31, 32) either side of a central post (33), wherein the articulation bearing surfaces (31, 32) are for receiving the lateral (11) and medial (12) condyles of the femoral component (10), and the post (33) is shaped such that it will fit within the femoral gap (15).
    • 描述了人造膝关节(1)并且包括股骨部件(10)和胫骨部件(30),用于分别附接到患者(4)的股骨(2)和胫骨(3)。 股骨部件(10)包括从股骨部件(10)的后部(13)延伸到前部(14)的外侧髁(11)和内侧髁(12)。 股骨间隙(15)设置在从后部(13)朝向股骨部件(10)的前部(14)延伸的侧面(11)和内侧(12)髁之间。 横向(11)和内侧(12)髁在股骨部件(10)的前部(13)处连接以形成髌骨跟踪路径或支承表面(16),其位于并形成间隙的前端 (17)。 提供股骨凸轮(18),其桥接所述侧面(11)和内侧(12)髁的后端,并形成所述间隙(19)的后端,其中所述股骨凸轮(18)构造成具有 环形部分的形状(20)。 胫骨部件(30)在中心柱(33)的任一侧设置有两个近似对称的关节支承表面(31,32),其中所述关节运动支承表面(31,32)用于接收侧向(11)和内侧 (12)股骨组件(10)的髁,并且所述柱(33)成形为使其适合于股骨间隙(15)内。