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12 条记录 (耗时 0.02 秒)

    Prosthesis and method for using prosthesis to facilitate deep knee flexion
    1.
    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
    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。

    IMPLANT FOR RESTORING NORMAL RANGE FLEXION AND KINEMATICS OF THE KNEE
    6.
    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。

    System and method for ligament reconstruction
    7.
    发明授权
    System and method for ligament reconstruction 有权

    公开(公告)号：US09724188B2

    公开(公告)日：2017-08-08

    申请号：US13281557

    申请日：2011-10-26

    申请人： Guoan Li ,  Hemanth R. Gadikota ,  Thomas J. Gill

    发明人： Guoan Li ,  Hemanth R. Gadikota ,  Thomas J. Gill

    IPC分类号： A61F2/08

    CPC分类号： A61F2/0811 ,  A61F2/08

    摘要： Systems and methods for ligament reconstruction provides an implant configured to position ligaments in the anatomic positions to thereby to restore the native anatomy and function of the reconstructed area. The implant includes a sheath, a first ledge, a second ledge, a first anchor and a second anchor. The sheath has an exterior surface and an interior surface, wherein the interior surface of the sheath forms a lumen configured to receive a sheath expander. The first ledge and the second are configured to separate the ligaments and acts as an anchor for the sheath in the bone tunnel. The first anchor and the second anchor are configured to engage the ligaments and be expandable outwards away from the lumen to provide fixation in a bone tunnel. When the implant receives the sheath expander, the ligaments can be separated, positioned, and secured in the bone tunnel.

    Single Tunnel, Double Bundle Anterior Cruciate Ligament Reconstruction Using Bone-Patellar Tendon-Bone Grafts
    9.
    发明申请
    Single Tunnel, Double Bundle Anterior Cruciate Ligament Reconstruction Using Bone-Patellar Tendon-Bone Grafts 有权
    单隧道，双束前交叉韧带重建使用骨髌骨腱骨移植

    公开(公告)号：US20110196490A1

    公开(公告)日：2011-08-11

    申请号：US13122845

    申请日：2009-10-13

    申请人： Hemanth R. Gadikota ,  Thomas J. Gill ,  Guoan Li

    发明人： Hemanth R. Gadikota ,  Thomas J. Gill ,  Guoan Li

    IPC分类号： A61F2/08

    CPC分类号： A61F2/0811 ,  A61B17/0401 ,  A61B17/686 ,  A61B17/863 ,  A61B2017/0414 ,  A61F2002/0835 ,  A61F2002/0858 ,  A61F2002/087 ,  A61F2002/0882

    摘要： Anterior cruciate ligament reconstruction methods and devices are designed to achieve an anatomically accurate double bundle anterior cruciate ligament reconstruction by using a single femoral and tibial tunnel. The method and devices reconstruct the two bundles of the anterior cruciate ligament in a single femoral and tibial tunnel using a bone-patellar tendon-bone graft. The methods and devices enable an accurate anatomical reconstruction of the anteromedial and posterolateral bundles by creating a single femoral and tibial tunnel as opposed to creating two tunnels in the tibia and femur.

    摘要翻译： 前交叉韧带重建方法和装置设计用于通过使用单股股骨和胫骨隧道来实现解剖学上准确的双束前十字韧带重建。 该方法和装置使用骨 - 髌骨腱 - 骨移植物在单个股骨和胫骨隧道中重建前交叉韧带的两束。 方法和装置能够通过创建单个股骨和胫骨隧道来进行前内侧和后外侧束的精确解剖重建，而不是在胫骨和股骨中形成两条隧道。