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    Evaluating the fit of an orthopaedic implant
    8.
    发明授权
    Evaluating the fit of an orthopaedic implant 失效
    评估矫形外科植入物的适合度

    公开(公告)号：US5989261A

    公开(公告)日：1999-11-23

    申请号：US898360

    申请日：1997-07-29

    申请人： Peter Stanley Walker ,  John Nevil Insall ,  Jonathan Blamey ,  Michael Wadcock ,  Mark Alan Heldreth ,  Shawn Elliott McGinley ,  Steven A. Zawadzki

    发明人： Peter Stanley Walker ,  John Nevil Insall ,  Jonathan Blamey ,  Michael Wadcock ,  Mark Alan Heldreth ,  Shawn Elliott McGinley ,  Steven A. Zawadzki

    IPC分类号： A61B17/15 ,  A61B17/16 ,  A61F2/00 ,  A61F2/30 ,  A61F2/38 ,  A61F2/46 ,  A61F2/28

    CPC分类号： A61B17/1675 ,  A61B17/1659 ,  A61F2/4684 ,  A61B17/157 ,  A61F2/3859 ,  A61F2/3872 ,  A61F2/389 ,  A61F2002/30187 ,  A61F2002/30393 ,  A61F2002/304 ,  A61F2002/30878 ,  A61F2220/0025 ,  A61F2230/0034

    摘要： The invention provides means for evaluating the fit of a knee replacement prosthesis on a resected tibial surface. A provisional instrument for this purpose includes a positioning tray having a peripheral profile corresponding to that of the tibial platform of the prosthesis, the tray having an upper surface and an under surface which is substantially flat and free from projections and the tray having a plurality of holes for receiving pins for temporarily attaching the positioning tray in a desired position on the resected tibial surface. Also disclosed is a jig for guiding, drilling and broaching operations, the jig having an aperture which is shaped to guide the broach. In addition, the invention includes a tibial broach which includes a hollow body having an upper end and a lower end and having an anvil at its upper end, an interior face and a posterior face which slopes downwardly towards a lower end, the posterior face having a series of teeth which are formed in the hollow body, such that bone cut by the teeth as the broach is driven into an intramedullary canal of a tibia passes into the hollow body.

    摘要翻译： 本发明提供了用于评估膝关节置换假体在切除的胫骨表面上的拟合的装置。 用于此目的的临时器具包括具有对应于假体的胫骨平台的外周轮廓的定位托盘，托盘具有基本上平坦且没有突起的上表面和下表面，并且托盘具有多个 用于接收销的孔，用于临时将定位托盘附接到被切除的胫骨表面上的期望位置。 还公开了一种用于引导，钻孔和拉削操作的夹具，该夹具具有成形为引导拉刀的孔。 此外，本发明包括胫骨拉刀，其包括具有上端和下端的中空本体，并且在其上端具有砧座，内表面和向后朝向下倾斜的后表面，所述后表面具有 形成在中空体中的一系列齿，使得当拉刀驱动到胫骨的髓内管中时由齿切割的骨进入中空体。

    Sizing plate and drill guide assembly for orthopaedic knee instrumentation
    9.
    发明授权
    Sizing plate and drill guide assembly for orthopaedic knee instrumentation 失效
    骨科膝关节仪器的定型板和钻头导向组件

    公开(公告)号：US5634927A

    公开(公告)日：1997-06-03

    申请号：US499049

    申请日：1995-07-06

    申请人： Michelle L. Houston ,  Steven A. Zawadzki

    发明人： Michelle L. Houston ,  Steven A. Zawadzki

    IPC分类号： A61B17/17 ,  A61B19/00 ,  A61F2/38 ,  A61F2/46 ,  A61K606/96

    CPC分类号： A61B17/1735 ,  A61B17/1764 ,  A61B2090/034 ,  A61F2/389 ,  A61F2/4684

    摘要： The invention is directed to an orthopaedic instrumentation assembly 10 for at least partially preparing an end of a bone with a drill for receiving a prosthesis. The instrumentation assembly includes a drill guide 14 having a drill guide opening for guiding a drill into the bone; and an orthopaedic sizing plate 12 attachable to the end of the bone. The sizing plate 12 is configured for interconnecting with the drill guide 14. The drill guide 14 includes a first drill stop 47 and the sizing plate includes a second drill stop 33, with the first drill stop and the second drill stop coacting with each other for limiting projection and for maintaining axial alignment of the drill into the bone.

    摘要翻译： 本发明涉及一种矫形器械组件10，用于至少部分地准备具有用于接收假体的钻头的骨头。 仪器组件包括具有用于将钻头引导到骨中的钻子引导开口的钻子引导器14; 以及可附接到骨的端部的整形外科尺寸板12。 定型板12构造成用于与钻子引导件14相互连接。钻子引导件14包括第一钻孔止动件47，并且定径板包括第二钻头止动件33，其中第一钻头止动件和第二钻头止动件彼此共同作用 限制投影并保持钻头进入骨头的轴向对准。