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    • 8. 发明授权
    • Total prosthesis of the wrist
    • 手腕总假体
    • US5314485A
    • 1994-05-24
    • US943565
    • 1992-09-11
    • Thierry Judet
    • Thierry Judet
    • A61F2/00A61F2/30A61F2/42
    • A61F2/4261A61F2002/30207A61F2002/30286A61F2002/30602A61F2002/308A61F2002/30841A61F2002/30894A61F2002/4264A61F2002/4279A61F2002/4282A61F2002/4284A61F2002/4289A61F2002/4292A61F2230/0063A61F2230/0067A61F2310/00011
    • A total wrist prosthesis with a radio-carpal articular level having a first radio-ulnar center of rotation located in a frontal plane and a medio-carpal articular level having a second radio-ulnar center of rotation located also in the frontal plane but being distinct from the first radio-ulnar center of rotation. The prosthesis including a radial element having an anchoring shank insertable into the distal portion of a radius bone, and a shoulder resting against the distal face of the said radius bone. A plate is connected to the radial element having a concave bearing surface having a radio-ulnar deviation radius of curvature in the frontal plane and a flexion-extension radius of curvature in a sagittal plane smaller than the radio-ulnar deviation radius of curvature. An intermediate element is also provided rotatable in radio-ulnar deviation and in flexion-extension with respect to the concave bearing surface and having a shape so as to cooperate with the concave bearing surface, and including a recess offset dorsally and in an ulnar direction. A metacarpal element is provided for anchoring into metacarpal bones and is free to rotate solely in a radio-ulnar deviation movement with respect to the intermediate element.
    • 具有放射性腕关节水平的全腕式假体具有位于前平面中的第一放射性尺度中心和具有位于前平面中的第二放射尺度中心的中腕关节水平,但是不同 从第一个无线电尺度旋转中心。 所述假体包括径向元件,所述径向元件具有可插入到半径骨的远侧部分中的锚定柄,以及抵靠所述桡骨骨远端面的肩部。 板与径向元件连接,该径向元件具有在前平面中具有放射性尺度偏差曲率半径的凹形支承表面,以及在径向平面中的弯曲延伸半径小于放射性尺度偏差曲率半径。 中间元件还可以以放射性尺度偏差旋转并且相对于凹形支承表面弯曲延伸,并且具有与凹形支承表面配合的形状,并且包括在背侧和尺寸方向上偏移的凹部。 提供掌骨元件用于锚定到掌骨中,并且仅在相对于中间元件的无线电尺度偏移运动中自由旋转。