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    Prosthetic knee tibial component with axially ribbed keel and apparatus for effecting implant
    1.
    发明授权
    Prosthetic knee tibial component with axially ribbed keel and apparatus for effecting implant 失效

    公开(公告)号：US5282866A

    公开(公告)日：1994-02-01

    申请号：US834675

    申请日：1992-02-12

    申请人： Robert C. Cohen ,  Robert G. Averill ,  Scott V. Cron

    发明人： Robert C. Cohen ,  Robert G. Averill ,  Scott V. Cron

    IPC分类号： A61B17/16 ,  A61B17/17 ,  A61F2/30 ,  A61F2/38

    CPC分类号： A61F2/3886 ,  A61B17/1604 ,  A61B17/1764 ,  A61F2/30771

    摘要： A tibial component of a prosthetic knee implant has a tibial tray, a post extending axially downwardly from a generally laterally central location beneath the tibial tray, and a keel including flanges extending laterally outwardly from the post and making an angle with one another so as to be directed toward relatively denser portions of the bone of the proximal tibia, and a plurality of ribs extending axially along each flange and spaced laterally from one another along the flange for enhancing the affixation and stability of the tibial component when implanted in the proximal tibia. Apparatus for preparing the proximal tibia for the reception of the tibial component includes a tibial punch and a tower selectively located at the proximal tibia, the tower having an axially extending guide bushing for placement above the proximal tibia and a channel extending laterally into the guide bushing for enabling the tibial punch to be inserted laterally into the guide bushing and then moved axially downwardly into the proximal tibia, while guided by the guide bushing, to establish a cavity in the proximal tibia for reception of the tibial component.

    Prosthetic knee tibial component with axially ribbed keel and apparatus for effecting implant
    3.
    发明授权
    Prosthetic knee tibial component with axially ribbed keel and apparatus for effecting implant 失效
    具有轴向肋骨龙骨的假体膝盖胫骨部件和用于实施植入物的装置

    公开(公告)号：US5356414A

    公开(公告)日：1994-10-18

    申请号：US151983

    申请日：1993-11-15

    申请人： Robert C. Cohen ,  Robert G. Averill ,  Scott V. Cron

    发明人： Robert C. Cohen ,  Robert G. Averill ,  Scott V. Cron

    IPC分类号： A61B17/16 ,  A61B17/17 ,  A61F2/30 ,  A61F2/38 ,  A61F5/04

    CPC分类号： A61F2/3886 ,  A61B17/1604 ,  A61B17/1764 ,  A61F2/30771

    摘要： A tibial component of a prosthetic knee implant has a tibial tray, a post extending axially downwardly from a generally laterally central location beneath the tibial tray, and a keel including flanges extending laterally outwardly from the post and making an angle with one another so as to be directed toward relatively denser portions of the bone of the proximal tibia, and a plurality of ribs extending axially along each flange and spaced laterally from one another along the flange for enhancing the affixation and stability of the tibial component when implanted in the proximal tibia. Apparatus for preparing the proximal tibia for the reception of the tibial component includes a tibial punch and a tower selectively located at the proximal tibia, the tower having an axially extending guide bushing for placement above the proximal tibia and a channel extending laterally into the guide bushing for enabling the tibial punch to be inserted laterally into the guide bushing and then moved axially downwardly into the proximal tibia, while guided by the guide bushing, to establish a cavity in the proximal tibia for reception of the tibial component.

    摘要翻译： 假体膝关节植入物的胫骨部件具有胫骨托，从胫骨托的下方的大体侧向中心位置向下方延伸的柱，以及包括从柱侧向向外延伸并且彼此成角度的凸缘的龙骨，以便 被引导到胫骨近端的骨的相对较致密的部分，以及沿着凸缘轴向延伸并沿着凸缘彼此横向隔开的多个肋，用于当植入胫骨近端时增强胫骨部件的固定和稳定性。 用于准备用于接收胫骨部件的近端胫骨的装置包括胫骨冲头和选择性地位于胫骨近端处的塔架，所述塔架具有用于放置在近端胫骨上方的轴向延伸的引导衬套和横向延伸到引导衬套中的通道 用于使胫骨冲头横向插入导向衬套中，然后在由引导衬套引导的同时沿轴向向下移动到近侧胫骨中，以在近端胫骨中建立用于接收胫骨部件的空腔。

    Anatomically matching intramedullary alignment rod
    5.
    发明授权
    Anatomically matching intramedullary alignment rod 失效
    解剖匹配髓内对准杆

    公开(公告)号：US5179915A

    公开(公告)日：1993-01-19

    申请号：US818635

    申请日：1992-01-06

    申请人： Robert C. Cohen ,  Scott V. Cron

    发明人： Robert C. Cohen ,  Scott V. Cron

    IPC分类号： A61B17/17

    CPC分类号： A61B17/1717

    摘要： An intramedullary alignment rod for properly orienting and supporting a cutting guide or tool has a complex geometry which includes at least two differently sized sections, the smaller of which is at the proximal end of the rod. The complex geometry of the rod maximizes the rigidity of the rod while avoiding the trauma of an interference fit, and facilitates stabilization of the intramedullary rod in the medullary canal.

    摘要翻译： 用于适当地定向和支撑切割引导件或工具的髓内对准杆具有复杂的几何形状，其包括至少两个不同尺寸的部分，其中较小的部分位于杆的近端。 棒的复杂几何形状使杆的刚度最大化，同时避免了过盈配合的创伤，并且有助于髓内管中的髓内杆的稳定化。

    Modular components for prosthetic implants
    6.
    发明授权
    Modular components for prosthetic implants 失效
    假体植入物的模块化组件

    公开(公告)号：US5397360A

    公开(公告)日：1995-03-14

    申请号：US16868

    申请日：1993-02-11

    申请人： Robert C. Cohen ,  Scott V. Cron

    发明人： Robert C. Cohen ,  Scott V. Cron

    IPC分类号： A61F2/00 ,  A61F2/30 ,  A61F2/38 ,  A61F2/28

    CPC分类号： A61F2/389 ,  A61F2002/30332 ,  A61F2002/30405 ,  A61F2002/30434 ,  A61F2002/30484 ,  A61F2002/30596 ,  A61F2002/30604 ,  A61F2002/30797 ,  A61F2002/3082 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2220/0041

    摘要： A modular component for a prosthetic implant includes a first member, in the form of a tibial tray member, and a second member, in the form of a stem member, joined together by the insertion of a tapered post on the stem member into a tapered receptacle in the tibial tray member, the relative tapers and relative dimensions of the post and the receptacle being such that the inner surface of the receptacle is seated against the outer surface of the post at least adjacent one end of the receptacle and the corresponding end of the post, and a stabilizing mechanism urges annular segments of the post, adjacent the other end of the post, toward engagement with the inner surface of the receptacle adjacent the corresponding other end of the receptacle to stabilize the connection between the tibial tray member and the stem member.

    摘要翻译： 用于假体植入物的模块化部件包括胫骨托构件形式的第一构件和杆构件形式的第二构件，所述第二构件通过在杆构件上插入锥形柱而形成锥形 容器在胫骨托盘构件中，柱和插座的相对锥度和相对尺寸使得容器的内表面至少邻近插座的一端抵靠柱的外表面，并且相应的端部 所述柱和稳定机构促使邻近所述柱的另一端的所述柱的环形段与所述容器的相邻的所述另一端的内表面接合，以稳定所述胫骨托构件与所述胫骨托构件之间的连接 茎成员。