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    • 1. 发明授权
    • Implant for restoring normal range flexion and kinematics of the knee
    • 用于恢复正常范围屈曲和膝关节运动学的植入物
    • US09414926B2
    • 2016-08-16
    • US14550755
    • 2014-11-21
    • The General Hospital Corporation
    • Guoan LiHarry E. RubashKartik Mangudi Varadarajan
    • A61F2/38
    • A61F2/389A61F2/38A61F2/3836A61F2230/0063
    • Embodiments of the invention provide knee prostheses which more faithfully and closely replicate the function, anatomy and physiology of the normal human knee yielding a number of advantages. Among other things, such prostheses can provide an increased range of motion and function more normally particularly in extension, deep flexion and during normal gait. Knee prostheses according to various aspects of the invention recognize that during movement of the knee, particularly during flexion, the kinematics of the bones of the knee are a result of achieving equilibrium of the forces that cause motion of the knee. In addition, the shape of the articular surfaces acting in combination with forces imposed by various muscles, ligaments and tendons, determines the direction of the large contact forces.
    • 本发明的实施例提供膝关节假体,其更真实和更密切地复制正常人膝盖的功能,解剖和生理学,产生许多优点。 除此之外,这样的假体可以提供更大范围的运动和更普遍的功能,特别是在伸展,深屈曲和正常步态期间。 根据本发明的各个方面的膝关节假体认识到,在膝盖运动期间,特别是在弯曲期间,膝盖的骨骼的运动学是实现引起膝盖运动的力的平衡的结果。 此外,与各种肌肉,韧带和腱施加的力组合起来的关节表面的形状决定了大的接触力的方向。