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    Implanting and removal of orthopedic prostheses
    4.
    发明授权
    Implanting and removal of orthopedic prostheses 失效
    植入和移除矫形假体

    公开(公告)号：US5019083A

    公开(公告)日：1991-05-28

    申请号：US304820

    申请日：1989-01-31

    申请人： Robert C. Klapper ,  James T. Caillouette

    发明人： Robert C. Klapper ,  James T. Caillouette

    IPC分类号： A61B17/00 ,  A61B17/16 ,  A61F2/30 ,  A61F2/36 ,  A61F2/46 ,  A61N7/00 ,  B06B3/00 ,  F16B21/02 ,  F16L37/244

    CPC分类号： F16L37/2445 ,  A61B17/8847 ,  A61F2/4607 ,  A61N7/00 ,  B06B3/00 ,  F16B21/02 ,  A61B17/1659 ,  A61B2017/00477 ,  A61F2/30767 ,  A61F2/36 ,  A61F2/4657 ,  A61F2002/30795 ,  A61F2002/3631 ,  A61F2002/368 ,  A61F2002/4619 ,  A61F2002/4631 ,  A61F2002/465 ,  A61F2002/4683

    摘要： A hip joint prosthesis or the like may be removed from the bone for a revision by applying ultrasonic vibration sufficient to disrupt connection of the prosthesis with the bone. This is particularly desirable for disrupting cancellous bone at the interface adjacent to the porous surface of a prosthesis designed for ingrowth of cancellous bone. Preferably the ultrasonic vibrations are applied to the prosthesis with sufficient energy for disrupting cancellous bone at the porous surface interface or softening a cement employed for securing the prosthesis to the bone. An ultrasonically vibrated osteotome may be inserted along the porous surface of a prosthesis for disrupting cancellous bone adjacent to the interface. Preferably the ultrasonic transducer is coupled to the prosthesis by a self-holding taper on the prosthesis and a complementary tapered socket connected to an ultrasonic transducer. Ultrasonic vibrations may also be employed for forming a cavity into which a prosthesis is implanted. This technique includes vibrating the prosthesis itself as it is inserted to enlarge the cavity and assure a tight fit.

    摘要翻译： 可以通过施加足以破坏假体与骨骼的连接的超声波振动来从骨骼中移除髋关节假体等用于修复。 这对于在与被设计用于向上生长松质骨的假体的多孔表面相邻的界面上破坏松质骨是特别理想的。 优选地，超声波振动以足够的能量施加到假体，用于在多孔表面界面处破坏松质骨或软化用于将假体固定到骨上的水泥。 超声波振动的骨凿可以沿着假体的多孔表面插入以破坏与界面相邻的松质骨。 优选地，超声波换能器通过假体上的自保持锥形和连接到超声换能器的互补锥形插座而联接到假体。 也可以使用超声振动来形成植入假体的空腔。 这种技术包括在假体插入时振动假体，以扩大腔体并确保紧密配合。

    Apparatus for implantation and extraction of osteal prostheses
    7.
    发明授权
    Apparatus for implantation and extraction of osteal prostheses 失效
    骨假体植入和提取装置

    公开(公告)号：US5284484A

    公开(公告)日：1994-02-08

    申请号：US706786

    申请日：1991-05-29

    申请人： Larry L. Hood ,  Robert C. Klapper ,  James T. Caillouette

    发明人： Larry L. Hood ,  Robert C. Klapper ,  James T. Caillouette

    IPC分类号： A61F2/30 ,  A61F2/36 ,  A61F2/46 ,  A61N7/00 ,  A61B17/56

    CPC分类号： A61N7/00 ,  A61B17/8847 ,  A61F2/4607 ,  A61F2002/30795 ,  A61F2002/3631 ,  A61F2002/368 ,  A61F2002/4619

    摘要： Apparatus particularly suited for implantation and/or extraction of osteal prostheses, comprising an ultrasonic power generator, regulator means for regulating the ultrasonic power generator in accordance with a predetermined algorithm, at least one transducer connected to the output line for converting said electrical energy to a linear mechanical motion, an acoustic transformer for increasing or decreasing peak-to-peak motion of the transducer and means for connecting the acoustic transformer to a surgical tool or a prosthetic device. The system suitably comprises a pair of transducers, one operating at each of 20 KHz and 40 KHz frequencies. Novel adapters for the four major types of osteal prosthesis are also provided.

    摘要翻译： 特别适用于骨假体植入和/或提取的装置，包括超声功率发生器，用于根据预定算法调节超声波发生器的调节装置，连接到输出线的至少一个换能器，用于将所述电能转换成 线性机械运动，用于增加或减少换能器的峰 - 峰运动的声变换器以及用于将声变换器连接到手术工具或假体装置的装置。 该系统适当地包括一对换能器，一对在20KHz和40KHz频率下操作的换能器。 还提供了用于四种主要类型的骨假体的新型适配器。