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    • 2. 发明授权
    • Prosthetic interpositional device/coupler
    • 假体插入装置/耦合器
    • US5066304A
    • 1991-11-19
    • US649094
    • 1991-02-01
    • Roy D. CrowninshieldRoy Y. Hori
    • Roy D. CrowninshieldRoy Y. Hori
    • A61F2/00A61F2/30A61F2/36
    • A61F2/3609A61F2/3662A61F2002/3021A61F2002/30217A61F2002/30321A61F2002/30332A61F2002/30344A61F2002/30474A61F2002/30616A61F2002/3611A61F2002/3619A61F2002/3625A61F2002/3631A61F2002/3647A61F2002/365A61F2002/3652A61F2220/0025A61F2220/0033A61F2230/0067A61F2250/0025A61F2310/00023A61F2310/00179
    • The present invention relates to a prosthetic interpositional device/coupler designed to be interposed between the neck and head of a femoral prosthesis. One example of a contemplated environment of use of the inventive interpositional device/coupler is in the situation where the prosthesis has a neck of one material and a head of another material. The inventive interpositional device/coupler may be made with an outer wall having a taper designed to match the taper of the head and with an inner wall having a taper designed to match the taper of the neck. These tapers may differ. Additionally, the inner and outer surfaces may have different surface textures from one another so as to make the respective walls compatible with the surface texture of the material of which the adjacent structure, head or neck, is made. Three embodiments of the inventive interpositional device/coupler are disclosed. The third embodiment is similar to the second embodiment except that the end wall is much thicker than the end wall in the second embodiment so that the device is greater in length than the second embodiment. The first embodiment does not include an end wall and may be shorter in length than either the second or third embodiment.
    • 本发明涉及设计成插入在股骨假体的颈部和头部之间的假体插入装置/联接器。 考虑到本发明的间位装置/联接器的使用环境的一个例子是假体具有一个材料的颈部和另一个材料的头部的情况。 本发明的间隔装置/联接器可以由具有锥形的外壁制成,该锥形设计成与头部的锥形匹配,并且具有设计成与颈部的锥度相匹配的锥形的内壁。 这些锥度可能不同。 此外,内表面和外表面可以具有彼此不同的表面纹理,以便使相应的壁与相邻结构,头部或颈部的材料的表面纹理相一致。 公开了本发明的插入设备/耦合器的三个实施例。 第三实施例类似于第二实施例,除了在第二实施例中端壁比端壁厚得多,使得该装置的长度大于第二实施例。 第一实施例不包括端壁并且可以比第二或第三实施例的长度更短。
    • 9. 发明授权
    • Orthopaedic prosthesis with access in collar
    • 矫形假体带领进入
    • US5163964A
    • 1992-11-17
    • US721730
    • 1991-06-26
    • Mark A. LazzeriRoy Y. Hori
    • Mark A. LazzeriRoy Y. Hori
    • A61B17/17A61F2/30A61F2/36A61F2/46
    • A61F2/3609A61B17/17A61B17/8847A61B17/175A61F2/367A61F2002/30772A61F2002/3627A61F2002/3643A61F2002/368A61F2002/4619
    • An orthopaedic prosthesis for implanation in a bone, the prosthesis including a collar extending outwardly therefrom. The collar includes an access recess aligned above the bone cement when the stem is implanted with cement in bone, or aligned above the bone/implant interface when the stem is biologically affixed to the bone. The access recess may be a dimple partially extending into the collar or it may be a through hole. The dimple provides a preset drill start for a drill to be aligned therewith for drilling through the collar to form a hole therethrough. In either case, whether starting with a dimple and then forming a hole or starting directly with a through hole, the hole may be progressively enlarged by use of sequentially larger drill sizes. Tools, such as chisels or the like, are inserted through the hole in the collar to break up the bone cement beneath the collar if a cemented stem, or to help break the bond between the stem and the bone if a biologically affixed stem, to help loosen the prosthesis from the bone to facilitate removal of the stem. A method of removing such a prosthesis is also disclosed.
    • 一种用于植入骨骼的矫形假体,所述假体包括从其向外延伸的颈环。 所述套环包括当所述杆在骨中植入骨水泥时在骨粘合剂上方对准的进入凹槽,或者当所述茎在生物学上固定于骨上时,所述进入凹槽对准骨/植入物界面上方。 进入凹槽可以是部分延伸到套环中的凹坑,或者它可以是通孔。 凹坑提供了一个预定的钻头开始,用于使钻头与钻头对齐,以钻穿套环以形成穿过其中的孔。 在任一情况下,无论是从凹坑开始然后形成孔还是直接从通孔开始,通过使用顺序地较大的钻孔尺寸,孔可以逐渐增大。 诸如凿子等的工具通过套环中的孔被插入,以便如果粘结的杆将骨水泥分开,如果是固定的杆,则有助于破坏杆和骨之间的粘结,如果生物固定的杆, 帮助松开骨骼上的假体以方便牙根的移除。 还公开了一种去除这种假体的方法。