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

    IPC分类号: A61F2/38 A61F2/30

    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

    IPC分类号: A61F2/38

    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

    IPC分类号: A61F2/38

    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。

    Modular implant
    9.
    发明授权
    Modular implant 失效
    模块植入

    公开(公告)号:US5019108A

    公开(公告)日:1991-05-28

    申请号:US474161

    申请日:1990-02-02

    摘要: A modular hip implant for left or right side installation as a femoral implant portion of a hip prosthesis. The implant is preferably utilized in a surgical procedure addressing fractures of the femoral neck and may inclue a lateral opening formed through a proximal portion of the implant for receiving a fenestration plug for installation thereover. Which fenestration plug is for use where the implant is to be cemented in place, and is not installed when the implant is for friction seating implantation. For ease of installation, the implant includes a stem that tapers inwardly along three sides, the anterior, medial and posterior, to the implant end, the corners or junctions of which sides are rounded. The implant is also tapered at the proximal portion, inwardly from its lateral straight side to its medial side, for providing, when press fitted into a prepared medullary channel, a wedging therein. The proximal portion of which implant may be roughened to encourage cancellous tissue growth thereto, and includes a lateral hole therethrough that is to receive a tool for turning and lifting the implant for its removal. Adjacent to which hole is arranged a collar that is tapered inwardly from a wide circular circumference to above the opposite surfaces of the implant proximal portion, which taper allows for passage of a tool along the implant that is used for cutting through bone growth or cement to facilitate implant removal. A tapered neck extends at approximately a right angle from the surface of which collar that is for mounting a head thereon. Which neck is offset medially to where a selected head mounted on the neck will match the normal anatomy of a particular patient.

    摘要翻译: 用于左侧或右侧安装的模块化髋关节植入物作为髋关节假体的股骨植入部分。 植入物优选用于解决股骨颈骨折的手术过程中,并且可能会暴露通过植入物的近端部分形成的侧向开口,用于接收用于安装在其上的开窗塞。 哪个开窗插头用于将植入物固定在适当的地方,并且当植入物用于摩擦座椅植入时不安装。 为了便于安装,植入物包括沿植入物端部的前侧,内侧和后侧的三边向内逐渐变细的茎,其侧面的角部或结合部是圆形的。 植入物也在近端部分处逐渐变细,从其侧向直侧向内侧向内延伸,用于当压入准备的髓质通道中时楔入其中。 植入物的近端部分可以被粗糙化以促进松质组织生长,并且包括穿过其中的侧向孔,其接收用于转动和提升植入物以便移除的工具。 相邻于哪个孔布置有从宽的圆形圆周向内倾斜到植入物近端部分的相对表面之上的套环,该锥形允许工具沿着用于通过骨生长或水泥切割的植入物通过到 促进植入物去除。 锥形颈部与用于将头部安装在其上的领域的表面成大致直角延伸。 哪个颈部在中间偏移到安装在颈部上的选定头部与特定患者的正常解剖结构匹配的位置。