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    • 1. 发明授权
    • Acetabular cup positioning insert with release mechanism
    • 髋臼杯定位插入物与释放机构
    • US5417696A
    • 1995-05-23
    • US36129
    • 1993-03-23
    • Glen A. KashubaJon I. Klippel
    • Glen A. KashubaJon I. Klippel
    • A61B17/58A61F2/30A61F2/34A61F2/46
    • A61F2/34A61F2/4609A61F2002/30841A61F2002/3401A61F2002/3403A61F2002/3451
    • An acetabular cup for use as a prosthetic implant has an insert with a body including a central bore for receiving a positioning rod therein. A key element is formed on the bore and is adapted to align the positioning rod. The insert has a locating element formed on an outer surface of the body and also includes spring elements extending radially outwardly from the body. The acetabular cup has a generally hemispherical shell member coupled to the outer surface of the insert. The shell has an outer surface for engaging the acetabulum and an inner surface having a circumferential groove for receiving the spring elements. The spring elements may be deflected radially inwardly out of engagement with the groove for releasing the insert from the shell. The spring elements can be deflected by pushing a sleeve down the rod to make contact with and deflect the spring element. The shell has a plurality of apertures extending from its inner to its outer surface, which apertures are located in an asymmetrical pattern about the shell. The shell includes a recess on its open end for receiving the locating element on the insert to align the insert at a predetermined orientation with respect to the apertures in the shell. The engagement of the insert onto the shell and the engagement of the locating element in the recess aligns the key element on the central bore and, therefore, the positioning rod at a predetermined orientation with respect to the apertures in the shell.
    • 用作假体植入物的髋臼杯具有带有本体的插入物,该主体包括用于在其中容纳定位杆的中心孔。 在孔上形成一个关键元件并且适于对准定位杆。 插入件具有形成在主体的外表面上的定位元件,还包括从主体径向向外延伸的弹簧元件。 髋臼杯具有联接到插入件的外表面的大致半球形外壳构件。 壳体具有用于接合髋臼的外表面和具有用于接收弹簧元件的周向槽的内表面。 弹簧元件可以径向向内偏转而不与凹槽接合以将插入件从壳体释放。 弹簧元件可以通过将套筒向下推动而偏转以与弹簧元件接触和偏转。 壳体具有从其内部延伸到其外表面的多个孔,该孔以围绕壳体的不对称图案定位。 壳体在其开口端部包括凹部,用于接收插入件上的定位元件,以将插入物相对于壳体中的孔以预定方向对齐。 插入件与壳体的接合以及定位元件在凹部中的接合将键元件对准中心孔,并且因此定位杆相对于壳体中的孔以预定取向对准。
    • 2. 发明授权
    • Acetabular cup positioning insert
    • 髋臼杯定位插入
    • US5171243A
    • 1992-12-15
    • US781536
    • 1991-10-22
    • Glen A. KashubaJon I. Klippel
    • Glen A. KashubaJon I. Klippel
    • A61F2/30A61F2/34A61F2/46
    • A61F2/4609A61F2/34A61F2002/30841A61F2002/3401A61F2002/3403A61F2002/3451
    • An acetabular cup for use as a prosthetic implant has an insert with a body including a central bore for receiving a positioning rod therein. A key element is formed on the bore and is adapted to align the positioning rod. The insert has a locating element formed on an outer surface of the body and also includes spring elements extending radially outwardly from the body. The acetabular cup has a generally hemispherical shell member coupled to the outer surface of the insert. The shell has an outer surface for engaging the acetabulum and an inner surface having a circumferential groove for receiving the spring elements. The spring elements may be deflected radially inwardly out of engagement with the groove for releasing the insert from the shell. The shell has a plurality of apertures extending from its inner to its outer surface, which apertures are located in an asymmetrical pattern about the shell. The shell includes a recess on its open end for receiving the locating element on the insert to align the insert at a predetermined orientation with respect to the apertures in the shell. The engagement of the insert onto the shell and the engagement of the locating element in the recess aligns the key element on the central bore and, therefore, the positioning rod at a predetermined orientation with respect to the apertures in the shell.
    • 用作假体植入物的髋臼杯具有带有本体的插入物,该主体包括用于在其中容纳定位杆的中心孔。 在孔上形成一个关键元件并且适于对准定位杆。 插入件具有形成在主体的外表面上的定位元件,还包括从主体径向向外延伸的弹簧元件。 髋臼杯具有联接到插入件的外表面的大致半球形外壳构件。 壳体具有用于接合髋臼的外表面和具有用于接收弹簧元件的周向槽的内表面。 弹簧元件可以径向向内偏转而不与凹槽接合以将插入件从壳体释放。 壳体具有从其内部延伸到其外表面的多个孔,该孔以围绕壳体的不对称图案定位。 壳体在其开口端部包括凹部,用于接收插入件上的定位元件,以将插入物相对于壳体中的孔以预定方向对齐。 插入件与壳体的接合以及定位元件在凹部中的接合将键元件对准中心孔,并且因此定位杆相对于壳体中的孔以预定取向对齐。