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    • 3. 发明申请
    • INNER ACETABULAR LINER FOR A DUAL MOBILITY FEMORAL HEAD CONSTRUCT
    • 内部用于双动力机构头部构造的内胆
    • US20140303743A1
    • 2014-10-09
    • US14216798
    • 2014-03-17
    • Sambhu ChoudhurySean LynchArturo David SanchezAndrew Ryan Law
    • Sambhu ChoudhurySean LynchArturo David SanchezAndrew Ryan Law
    • A61F2/34
    • A61F2/34A61F2/30724A61F2/32A61F2002/30448A61F2002/30449A61F2002/3069A61F2002/3208
    • A dual mobility femoral head construct has a secure acetabular shell received within an acetabular recess formed in a pelvis. An implantable prosthetic device is implantable after a failure of an originally installed articular head insert of an acetabular cup assembly. A hemispherical liner is formed from a cast cobalt-chromium alloy for thinness and elasticity. At least three spacers are annularly displaced about an outer diameter of the hemispherical liner to define a uniform cement thickness with the secure acetabular shell. Web shaped depressions are formed circumferentially in the outer diameter of the hemispherical liner to receive cement to resist lever out forces and to secure the cement bond with the secure acetabular shell. A replacement articular head insert is then received for dual mobility rotational movement in an inner diameter of the hemispherical liner. A femoral head implant is received for articulating movement in the articular head insert.
    • 双移动性股骨头构造具有容纳在骨盆内形成的髋臼凹部内的安全的髋臼壳。 可植入的假体装置可以在最初安装的髋臼杯组件的关节头插入物失效后植入。 由铸造钴铬合金制成的半球形衬套用于薄型和弹性。 至少三个间隔件围绕半球形衬套的外径环形移位,以确定具有固定的髋臼外壳的均匀的水泥厚度。 网状凹陷在半球形衬套的外径周向形成以接收水泥以抵抗杠杆外力并且固定与固定髋臼壳的粘结。 然后接收替换的关节头插入件用于在半球形衬垫的内径中的双重移动性旋转运动。 接收股骨头植入物用于在关节头插入物中的关节运动。