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    Spring system designs for active and passive retractable seals
    1.
    发明授权
    Spring system designs for active and passive retractable seals 有权
    主动和被动可伸缩密封件的弹簧系统设计

    公开(公告)号：US08113771B2

    公开(公告)日：2012-02-14

    申请号：US12408236

    申请日：2009-03-20

    申请人： Norman Arnold Turnquist ,  Shorya nmn Awtar ,  Mustafa Gursoy ,  Kartik Mangudi Varadarajan

    发明人： Norman Arnold Turnquist ,  Shorya nmn Awtar ,  Mustafa Gursoy ,  Kartik Mangudi Varadarajan

    IPC分类号： F01D5/20 ,  F01D11/08 ,  F04D29/08 ,  F04D29/18

    CPC分类号： F16J15/445 ,  F01D11/025 ,  F05D2240/70

    摘要： A spring assembly for a retractable turbine rotor seal supported in an arcuate segment may include in one embodiment a first radially inner restraining plate having a lower surface adapted to engage a surface of a turbine stator, and a flat upper surface provide with an upstanding hub; a second radially outer restraining plate having a flat lower surface and an upper surface adapted to engage a surface of the arcuate segment, the radially outer restraining plate formed with an opening receiving the upstanding hub; and at least one spring telescoped over the upstanding hub and exerting a radially outward biasing force on the second radially outer restraining plate, and adapted to exert a radially outward retracting force on the arcuate segment.

    摘要翻译： 支撑在弧形段中的用于可伸缩涡轮机转子密封件的弹簧组件可以包括在一个实施例中，第一径向内部约束板具有适于接合涡轮机定子的表面的下表面，并且平坦的上表面提供直立的毂; 第二径向外约束板，其具有平坦的下表面和适于接合所述弓形段的表面的上表面，所述径向外限制板形成有接收所述直立毂的开口; 并且至少一个弹簧套叠在直立毂上并在第二径向外限制板上施加径向向外的偏置力，并且适于在弓形段上施加径向向外的缩回力。

    Implant for restoring normal range flexion and kinematics of the knee
    2.
    发明授权
    Implant for restoring normal range flexion and kinematics of the knee 有权
    用于恢复正常范围屈曲和膝关节运动学的植入物

    公开(公告)号：US08911502B2

    公开(公告)日：2014-12-16

    申请号：US13491126

    申请日：2012-06-07

    申请人： Guoan Li ,  Harry E. Rubash ,  Kartik Mangudi Varadarajan

    发明人： Guoan Li ,  Harry E. Rubash ,  Kartik Mangudi Varadarajan

    IPC分类号： A61F2/38

    CPC分类号： A61F2/389 ,  A61F2/38 ,  A61F2/3836 ,  A61F2230/0063

    摘要： 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.

    摘要翻译： 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。

    Prosthesis and method for using prosthesis to facilitate deep knee flexion
    4.
    发明授权
    Prosthesis and method for using prosthesis to facilitate deep knee flexion 有权
    使用假体促进深部膝关节屈曲的假体和方法

    公开(公告)号：US09084679B2

    公开(公告)日：2015-07-21

    申请号：US13886512

    申请日：2013-05-03

    申请人： Guoan Li ,  Kartik Mangudi Varadarajan ,  Harry E. Rubash

    发明人： Guoan Li ,  Kartik Mangudi Varadarajan ,  Harry E. Rubash

    IPC分类号： A61F2/38 ,  A61F2/30

    CPC分类号： A61F2/3859 ,  A61F2/461 ,  A61F2002/30326 ,  A61F2002/30327 ,  A61F2002/30934

    摘要： The present invention provides a femoral prosthesis for a femur which can enable or allow deep knee flexion without creating excessive tension in the ligamentous structure of the knee. The femoral prosthesis includes an internal non-articulating surface, an external articulating surface, a medial condyle and a lateral condyle. The height of the medial condyle is less than the height of the lateral condyle. A proximal-posterior tip of the medial condyle is rounded and is shifted inwards relative to the native level of the proximal-posterior region of the femur bone to facilitate knee flexion. A method of mounting a femoral prosthesis on a femur is also described.

    摘要翻译： 本发明提供一种用于股骨的股骨假体，其能够或允许深膝屈曲而不会在膝盖的韧带结构中产生过度的张力。 股骨假体包括内部非关节表面，外部关节表面，内侧髁和外侧髁。 内侧髁的高度小于外侧髁的高度。 内侧髁的近端 - 后尖端是圆形的并且相对于股骨的近端 - 后部区域的天然水平向内移动以便于膝部屈曲。 还描述了将股骨假体安装在股骨上的方法。

    IMPLANT FOR RESTORING NORMAL RANGE FLEXION AND KINEMATICS OF THE KNEE
    7.
    发明申请
    IMPLANT FOR RESTORING NORMAL RANGE FLEXION AND KINEMATICS OF THE KNEE 有权
    恢复正常范围灵活度和动力学的植入物

    公开(公告)号：US20120310362A1

    公开(公告)日：2012-12-06

    申请号：US13491126

    申请日：2012-06-07

    申请人： Guoan Li ,  Harry E. Rubash ,  Kartik Mangudi Varadarajan

    发明人： Guoan Li ,  Harry E. Rubash ,  Kartik Mangudi Varadarajan

    IPC分类号： A61F2/38

    CPC分类号： A61F2/389 ,  A61F2/38 ,  A61F2/3836 ,  A61F2230/0063

    摘要： 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.

    摘要翻译： 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。