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    Spinal prostheses
    3.
    发明授权
    Spinal prostheses 失效
    脊柱假体

    公开(公告)号：US08197543B2

    公开(公告)日：2012-06-12

    申请号：US11719699

    申请日：2005-11-21

    Applicant: Dajue Wang

    Inventor： Dajue Wang

    IPC: A61F2/44

    CPC classification number: A61F2/44 ,  A61F2/30744 ,  A61F2002/2835 ,  A61F2002/30069 ,  A61F2002/30235 ,  A61F2002/30388 ,  A61F2002/30476 ,  A61F2002/30563 ,  A61F2002/30566 ,  A61F2002/30578 ,  A61F2002/30784 ,  A61F2002/4475 ,  A61F2002/449 ,  A61F2220/0025 ,  A61F2230/0069

    Abstract: A spinal prosthesis has a prosthetic vertebral body in the form of a hollow cylinder (1) with perforated wall and attached prosthetic intervertebral discs formed by springs (7,8) molded into silicone-rubber beads (9,10). Anchoring of the cylinder (1) to the damaged vertebra (II) is by means of entrapment of an elongate lug (12) of the cylinder 1 within a slot (16) of a plate (11) retained by screws (12) within a recess (13) of the damaged vertebra (II). The springs (7,8) of the resilient beads (9,10) are attached to the natural vertebrae (I,III) superior and inferior to the damaged vertebra (II) by fixing plates (3,4) which have flanges (20,21) that are held by screws (22) to those vertebrae (I,III). Where adjoining vertebrae are damaged, two or more prosthetic cylinders (1) for anchoring to the individual vertebra are used with interconnecting resilient beads (9;10).

    Abstract translation: 脊椎假体具有中空圆筒（1）形式的假体椎体，其具有穿孔壁和由模制成硅橡胶珠（9,10）的弹簧（7,8）形成的附接的假体椎间盘。 将圆柱体（1）锚定到损坏的椎骨（II）上是通过将圆柱体1的细长凸耳（12）夹在由螺钉（12）保持的板（11）的槽（16）内的一个 损伤的椎骨（II）的凹槽（13）。 弹性珠（9,10）的弹簧（7,8）通过固定具有凸缘（20）的板（3,4）而附接到优于和损坏的椎骨（II）上的天然椎骨（I，III） ，21），其由螺钉（22）保持到那些椎骨（I，III）。 在相邻的椎骨受损的情况下，使用两个或更多个用于锚固到单个椎骨的假体圆柱体（1），其具有相互连接的弹性珠（9; 10）。

    High flexion articular insert
    6.
    发明申请
    High flexion articular insert 审中-公开
    高屈曲关节插入物

    公开(公告)号：US20050143832A1

    公开(公告)日：2005-06-30

    申请号：US10964151

    申请日：2004-10-13

    Applicant: Christopher Carson

    Inventor： Christopher Carson

    IPC: A61F2/00 ,  A61F2/30 ,  A61F2/38 ,  A61F2/46

    CPC classification number: A61F2/3886 ,  A61F2/30942 ,  A61F2002/30133 ,  A61F2002/30388 ,  A61F2002/30604 ,  A61F2002/30616 ,  A61F2002/30822 ,  A61F2002/30878 ,  A61F2002/30884 ,  A61F2002/30957 ,  A61F2002/4631 ,  A61F2220/0025 ,  A61F2230/0015 ,  A61F2310/00029

    Abstract: A knee prosthesis is provided that allows for increased flexion. The knee prosthesis includes (a) a femoral component adapted to fit on a distal end of the femur which includes a lateral condylar structure and a medial condylar structure and (b) an intermediate structure configured to cooperate with a femoral component of a knee prosthesis. The intermediate structure includes at least one surface for contacting the femoral component and a transition of a sagittal curvature of the at least one contact surface from a concave surface into a convex surface at the contact interface of the femoral component and the intermediate structure when the knee is flexed at approximately 120° to 140°. The knee prosthesis minimizes impingement on the femoral posterior cortex in deep flexion, increases the dislocation safety factor and allows for easier reengagement of the articular surface should the femoral component externally rotate off of the tibial plateau.

    Abstract translation: 提供了允许增加屈曲的膝盖假体。 膝关节假体包括（a）适于装配在股骨的远端上的股骨部件，其包括外侧髁结构和内侧髁结构，以及（b）构造成与膝关节假体的股骨部件配合的中间结构。 中间结构包括至少一个用于接触股骨部件的表面和至少一个接触表面的矢状曲率从凹面到股骨部件和中间结构的接触界面处的凸表面的过渡，当膝盖 在大约120°至140°弯曲。 膝关节假体最大程度地减少了在深部屈曲时对股骨后皮质的冲击，增加了位错安全系数，并且如果股骨部件从胫骨平台外部旋转，则可以更容易地重新关节关节面。

    Motion facilitating tibial components for a knee prosthesis
    10.
    发明授权
    Motion facilitating tibial components for a knee prosthesis 有权
    运动促进膝关节假体的胫骨部件

    公开(公告)号：US08591594B2

    公开(公告)日：2013-11-26

    申请号：US13229103

    申请日：2011-09-09

    Applicant: Raymond C. Parisi ,  Katherine M. Rettig ,  Jeff C. Blaylock

    Inventor： Raymond C. Parisi ,  Katherine M. Rettig ,  Jeff C. Blaylock

    IPC: A61F2/38

    CPC classification number: A61F2/389 ,  A61F2/3868 ,  A61F2/3886 ,  A61F2002/30387 ,  A61F2002/30388 ,  A61F2002/30616 ,  A61F2220/0033

    Abstract: An orthopaedic tibial prosthesis includes a tibial baseplate sized and shaped to cover substantially all of a resected proximal tibial surface, and a tibial bearing component sized to leave a posteromedial portion of the tibial baseplate exposed when the tibial bearing component is mounted to the baseplate. The exposed posteromedial portion of the tibial baseplate includes a chamfered profile which cooperates with a correspondingly chamfered profile at a posteromedial edge of the tibial bearing component to create a substantially continuous chamfer extending from the resected tibial surface to the medial articular surface of the tibial bearing component. Advantageously, this chamfer leaves an absence of material (i.e., a relief or void) at the posteromedial edge of the tibial prosthesis, thereby enabling deep flexion of the prosthesis without impingement between the tibial prosthesis and adjacent anatomic tissues or prosthetic structures.

    Abstract translation: 整形外科胫骨假体包括胫骨基板，其尺寸和形状基本上覆盖所切除的近端胫骨表面，以及胫骨承载部件，其尺寸设置成当胫骨支承部件安装到基板时露出胫骨基板的后内侧部分。 胫骨基板的暴露的后内侧部分包括倒角轮廓，其与胫骨支承部件的后内侧边缘处的相应的倒角轮廓配合，以形成从切除的胫骨表面延伸到胫骨支承部件的内侧关节面的基本上连续的倒角 。 有利地，该倒角在胫骨假体的后内侧缘处留下材料（即，浮雕或空隙），从而使得假体的深度屈曲没有胫骨假体和相邻的解剖组织或假体结构之间的冲击。

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