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    • 1. 发明授权
    • Femoral surface shaping apparatus for posterior-stabilized knee implants
    • 用于后稳定膝关节植入物的股骨表面成形设备
    • US4721104A
    • 1988-01-26
    • US803368
    • 1985-12-02
    • Michael E. KaufmanLeo A. Whiteside
    • Michael E. KaufmanLeo A. Whiteside
    • A61B17/56A61B17/16A61B17/17A61F5/04
    • A61B17/1764A61B17/1675A61B2017/1602
    • The present invention relates to a surgical apparatus for providing an accurately placed recess in a distal femoral surface for the intercondylar stabilizing housing of a posterior-stabilized knee implant prosthesis which apparatus comprises (a) a template having (1) a bottom surface which is adapted to be placed in an aligning relationship with the flat surface of a distal femur which has been partially shaped to receive the femoral component of a posterior-stabilized knee implant prosthesis and (2) a U-shaped slot passing through the template where the slot is of substantially the same size and shape as the outer periphery of the intercondylar stabilizing housing present on the femoral component to be implanted and (b) a drilling means, preferably in the form of an end-mill cutter, having a stop means thereon and the drilling means closely engages the sides of the U-shaped slot in the template so that the drilling means can be passed through the U-shaped slot until the stop means contacts a surface of the guide and is then drawn along the slot to create a precisely shaped and aligned recess in the femur for receipt of the intercondylar stabilizing housing. In a more preferred embodiment, the template is composed of a drilling means guide which fits over a femoral trial prosthesis which is used for trial reductions after the drill guide is used and removed.
    • 本发明涉及一种用于在后稳定的膝盖植入物假体的髁间稳定壳体的远端股骨表面中提供精确放置的凹部的手术装置,该装置包括(a)模板,其具有(1)适于 与已经部分成形以接收后稳定的膝盖植入物假体的股骨部件的远端股骨的平坦表面对准地关系,以及(2)穿过模板的U形槽,其中狭槽是 具有与待植入的股骨部件上存在的髁间稳定壳体的外周基本相同的尺寸和形状;以及(b)钻孔装置,优选为端铣刀的形式,在其上具有止动装置, 钻孔装置紧密地接合模板中的U形槽的侧面,使得钻孔装置可以通过U形槽,直到止动装置con 撞击引导件的表面,然后沿着狭槽拉动,以在股骨中产生精确成形和对准的凹槽,以便接收髁间稳定壳体。 在更优选的实施例中,模板由钻孔装置引导件组成,钻孔装置引导件适用于在使用和移除钻孔引导器之后用于试验减少的股骨试验假体。
    • 2. 发明授权
    • Acetabular component with improved liner seal and lock
    • 具有改进的衬垫密封和锁定的髋臼部件
    • US5766260A
    • 1998-06-16
    • US847887
    • 1997-04-28
    • Leo A. Whiteside
    • Leo A. Whiteside
    • A61F2/00A61F2/30A61F2/34A61F2/46
    • A61F2/34A61F2002/30378A61F2002/30403A61F2002/30487A61F2002/30589A61F2002/30594A61F2002/30682A61F2002/30879A61F2002/3401A61F2002/3403A61F2002/3411A61F2002/3435A61F2002/3451A61F2002/4631A61F2220/0025A61F2220/0033A61F2310/00011
    • An acetabular component for a hip replacement system comprises an acetabular shell, and a liner having a seal for insertion into the acetabular shell. In the preferred embodiment, the shell has a smooth tapered surface in its peripheral inner surface, and the liner has several annular ridges protruding from its outer surface. Upon insertion of the liner into the shell, the annular ridges of the liner come into sealing engagement with the smooth tapered surface of the shell. This sealing engagement substantially prevents a migration of debris along an interface of the liner with the shell. The liner is provided with several peripheral tabs for interference fit with several peripheral notches in the shell. An interlock comprising another liner ridge and a shell groove, provide a positive engagement to hold the liner in the shell as it bottoms therein. In an alternative embodiment, each notch is provided with protruding lips which project into the notch and firmly grasp one of the tabs of the liner upon insertion of the liner into the shell. In this manner, micromotion between the liner and the shell is substantially inhibited.
    • 用于髋关节置换系统的髋臼部件包括髋臼壳和具有用于插入髋臼壳的密封件的衬垫。 在优选实施例中,壳体在其周边内表面具有平滑的锥形表面,并且衬套具有从其外表面突出的若干环形脊。 在将衬套插入壳体中时,衬套的环形脊与壳体的平滑锥形表面密封接合。 该密封接合基本上防止碎屑沿着衬套与壳体的界面的迁移。 衬套设置有多个外围突出部,用于与外壳中的多个外围凹口紧密配合。 包括另一个衬里脊和壳槽的互锁提供了一种正面的接合,以将衬垫保持在外壳中,因为衬底在底部。 在替代实施例中,每个凹口设置有突出的凸缘,其突出到凹口中并且在将衬套插入壳体中时牢固地抓住衬套的一个凸片。 以这种方式,基本上抑制了衬套和壳体之间的微动作。
    • 7. 发明授权
    • Revision femoral trial prosthesis
    • 修订股骨假体假体
    • US5702460A
    • 1997-12-30
    • US515991
    • 1995-08-16
    • Thomas A. CarlsTony MelkentLeo A. WhitesideTim Vendrely
    • Thomas A. CarlsTony MelkentLeo A. WhitesideTim Vendrely
    • A61B17/15A61B17/16A61B17/17A61B19/00A61F2/00A61F2/30A61F2/38A61F2/46
    • A61F2/4684A61B17/155A61B17/1604A61B17/1764A61F2/461A61B17/157A61B2017/1602A61B2090/033A61B90/06A61F2/38A61F2/3859A61F2/389A61F2002/30433A61F2002/30594A61F2002/30616A61F2002/30736A61F2002/4623A61F2002/4681A61F2220/0041Y10S623/914
    • A trial femoral prosthesis for use in knee joint replacement surgery includes a trial prosthesis body that is generally J-shaped. The prosthesis body provides a distal articulating surface and a proximal non-articulating surface. The articulating surface includes medial and lateral condylar portions, a distal portion, and an anterior portion. An elongated stem extends from the distal non-articulating surface for anchoring the trial prosthesis to the intramedullary canal of the patient's femur. Wedge trial insert members are connectable to the trial prosthesis body at the non-articulating surface. The inserts can be of different shape and different thicknesses and can be independently placed on opposite sides of the stem. However, the prosthesis body can be used independently without any inserts. The apparatus assists a surgeon who is going to revise a total knee that had been previously implanted. If a surgeon needs a wedge insert for the trial, a corresponding wedge is placed on the final knee implant. The trial prosthesis body and wedges each provide cutting edges that remove bone in the exact places in order to make the implant fit snugly. The cutting edges shave bone material when the surgeon drives the trial onto the distal femur. If bone needs to be removed in the distal area to accommodate a wedge insert, cutting guide slots are provided in the trial prosthesis body. If bone needs to be removed in the anterior or posterior chamfer area, angled chamfer cutting guide slots are provided in the trial prosthesis body.
    • 用于膝关节置换手术的股骨假体试验包括通常为J形的试验假体。 假体主体提供远端铰接表面和近端非关节表面。 关节表面包括内侧和外侧髁部分,远侧部分和前部。 细长的杆从远端非关节表面延伸,用于将试验假体锚定到患者股骨的髓内管。 楔形试验插入件可连接到非铰接表面的试验假体。 插入件可以具有不同的形状和不同的厚度,并且可以独立地放置在杆的相对侧上。 然而,假体可独立使用,无任何插入物。 该仪器协助一名外科医生正在修改以前植入的全膝盖。 如果外科医生需要用于试验的楔形插入物,则在最终的膝盖植入物上放置相应的楔形物。 试验假体和楔块各提供切割边缘,以在精确的位置去除骨头,以使植入物紧密配合。 当外科医生将试验推进到股骨远端时,切削刃刮削骨材料。 如果需要在远端区域中移除骨头以容纳楔形插入物,则在试验假体中提供切割引导槽。 如果在前后倒角区域需要去除骨头,则在试验假体中提供有角度的倒角切割引导槽。