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1. 发明申请

US20080309019A1 SEALING ASSEMBLY FOR ROTARY MACHINES 审中-公开
标题翻译：旋转机械密封装配
公开(公告)号：US20080309019A1
公开(公告)日：2008-12-18
申请号：US11762531
申请日：2007-06-13
申请人： Christopher Edward Wolfe , Kartik Mangudi Varadarajan , Mohsen Salehi , Bugra Han Ertas , Michael Vincent Drexel , Biao Fang
发明人： Christopher Edward Wolfe , Kartik Mangudi Varadarajan , Mohsen Salehi , Bugra Han Ertas , Michael Vincent Drexel , Biao Fang
IPC分类号： F16J15/00
CPC分类号： F16J15/3452 , F01D11/003 , F01D11/12 , F02C7/28 , F05D2240/56 , F05D2240/57 , F16J15/3208 , F16J15/3224 , F16J15/3288
摘要： A sealing assembly is provided. The sealing assembly includes a foil disposed circumferentially around a rotating component and configured to provide primary sealing to the rotating component between high pressure and low pressure sides and a spring system disposed adjacent to the foil. The spring system includes a plurality of features to facilitate foil surface to follow excursions of the rotating component, wherein the plurality of features provide secondary sealing from the high pressure to the low pressure sides between the foil and a stationary component.
摘要翻译：提供密封组件。密封组件包括围绕旋转部件周向设置的箔，并且被配置为在高压侧和低压侧之间向旋转部件提供主要密封，以及邻近箔设置的弹簧系统。弹簧系统包括多个特征以便于箔表面跟随旋转部件的偏移，其中多个特征提供从高压到箔和固定部件之间的低压侧的二次密封。

2. 发明授权

US08113771B2 Spring system designs for active and passive retractable seals 有权
标题翻译：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。

3. 发明授权

US08911502B2 Implant for restoring normal range flexion and kinematics of the knee 有权
标题翻译：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。

4. 发明申请

US20130018477A1 Methods and Devices for Knee Joint Replacement with Anterior Cruciate Ligament Substitution 有权
公开(公告)号：US20130018477A1
公开(公告)日：2013-01-17
申请号：US13547383
申请日：2012-07-12
申请人： Orhun K. Muratoglu , Kartik Mangudi Varadarajan , Guoan Li , Harry E. Rubash , Thomas Zumbrunn
发明人： Orhun K. Muratoglu , Kartik Mangudi Varadarajan , Guoan Li , Harry E. Rubash , Thomas Zumbrunn
IPC分类号： A61F2/38
CPC分类号： A61F2/3836 , A61F2/08 , A61F2/0811 , A61F2/3886 , A61F2002/30688
摘要： Methods and devices are provided for knee joint replacement with anterior cruciate ligament (ACL) substitution. Generally, the methods and devices can allow a knee joint to be partially or totally replaced in conjunction with substitution of the knee joint's ACL. In one embodiment, a knee replacement prosthesis can include a medial or lateral femoral implant, a femoral intercondylar notch structure, a medial or lateral tibial insert, and an ACL-substitution member. The ACL-substitution member can be configured to engage with the femoral intercondylar notch structure during a full range of knee motion and/or during only early knee flexion.

5. 发明授权

US09084679B2 Prosthesis and method for using prosthesis to facilitate deep knee flexion 有权
标题翻译：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。

6. 发明授权

US09005299B2 Methods and devices for knee joint replacement with anterior cruciate ligament substitution 有权
标题翻译：用膝关节置换前交叉韧带替代术的方法和装置
公开(公告)号：US09005299B2
公开(公告)日：2015-04-14
申请号：US13547383
申请日：2012-07-12
申请人： Orhun K. Muratoglu , Kartik Mangudi Varadarajan , Guoan Li , Harry E. Rubash , Thomas Zumbrunn
发明人： Orhun K. Muratoglu , Kartik Mangudi Varadarajan , Guoan Li , Harry E. Rubash , Thomas Zumbrunn
IPC分类号： A61F2/38 , A61F2/08 , A61F2/30
CPC分类号： A61F2/3836 , A61F2/08 , A61F2/0811 , A61F2/3886 , A61F2002/30688
摘要： Methods and devices are provided for knee joint replacement with anterior cruciate ligament (ACL) substitution. Generally, the methods and devices can allow a knee joint to be partially or totally replaced in conjunction with substitution of the knee joint's ACL. In one embodiment, a knee replacement prosthesis can include a medial or lateral femoral implant, a femoral intercondylar notch structure, a medial or lateral tibial insert, and an ACL-substitution member. The ACL-substitution member can be configured to engage with the femoral intercondylar notch structure during a full range of knee motion and/or during only early knee flexion.
摘要翻译：方法和装置用于膝关节置换前交叉韧带（ACL）替代。通常，所述方法和装置可以允许膝关节部分地或完全地被替换为膝关节的ACL。在一个实施例中，膝关节置换假体可以包括内侧或外侧股骨植入物，股骨髁间隙结构，内侧或外侧胫骨插入物和ACL取代构件。 ACL取代构件可以被构造成在全膝关节运动范围和/或仅在早期膝关节屈曲期间与股骨髁间隙结构接合。

7. 发明申请

US20130297032A1 PROSTHESIS AND METHOD FOR USING PROSTHESIS TO FACILITATE DEEP KNEE FLEXION 有权
公开(公告)号：US20130297032A1
公开(公告)日：2013-11-07
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
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.

8. 发明申请

US20120310362A1 IMPLANT FOR RESTORING NORMAL RANGE FLEXION AND KINEMATICS OF THE KNEE 有权
标题翻译：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。

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