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    • 9. 发明专利
    • Prosthetic components with secondary retention
    • 具有次要保留的前置组件
    • JP2014180557A
    • 2014-09-29
    • JP2014051099
    • 2014-03-14
    • Depuy (Ireland)デピュイ・(アイルランド)DePuy (Ireland)
    • GARY M LINDSAYTYLER S HATHAWAYAARON J MATYASWYSS JOSEPH GFILIP LESZKO
    • A61F2/38
    • A61F2/3859A61F2/30734A61F2002/30332A61F2002/30476A61F2002/30484A61F2002/30495A61F2002/30504A61F2002/30507
    • PROBLEM TO BE SOLVED: To provide an implantable orthopedic knee prosthesis assembly.SOLUTION: An implantable orthopaedic knee prosthesis assembly includes a femoral component, a stem component, a fastener, and a retention device. The femoral component is configured to be implanted into a distal end of a femur of a patient and includes a stem post having a proximal tapered bore, a distal passageway, and a threaded passageway connecting the proximal tapered bore and the distal passageway. The stem component is configured to taper-fit to the femoral component and includes a bore formed therein extending proximally and a threaded aperture defined at a proximal end of the bore. The head of the fastener is configured to be received in the distal passageway, whereas the proximal end of the shaft of the fastener is configured to be positioned in the threaded aperture. The retention device is received in the threaded passageway and prevents the proximal end of the fastener from reentering the threaded passageway.
    • 要解决的问题:提供可植入矫形膝关节假体组件。解决方案:可植入矫形膝关节假体组件包括股骨部件,杆部件,紧固件和保持装置。 股骨部件构造成植入患者股骨的远端,并且包括具有近端锥孔,远侧通路和连接近端锥孔和远端通道的螺纹通道的杆柱。 所述杆部件构造成与所述股骨部件成锥形配合,并且包括形成在其中的向内延伸的孔和限定在所述孔的近端处的螺纹孔。 紧固件的头部构造成被容纳在远端通道中,而紧固件的轴的近端构造成定位在螺纹孔中。 保持装置被容纳在螺纹通道中并且防止紧固件的近端重新进入螺纹通道。