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Cotyloid implant attached without cement

机译：没有骨水泥的辅倍体植入物

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摘要

The cotyloidal implant has a hemispherical cup (5) forming an internal cavity (10), and an insert (7) engageable into the cavity, the cup being set in place by impaction and having to this effect anchoring asperities (15) provided on its external face, having the form of lozenges and which are contiguous and imbricated. The cup (5) is provided, on its external face, with two coaxial grooves configured like helical threads (38) having reverse pitches which intersect each other on a large portion of said external face, which are inclined in the direction of the cup opening and which have a depth increasing progressively in the opening direction of the cup (5); due to their intersection, the grooves delimit an important number of asperities (15). The invention provides for the making of a cotyloidal implant which can be anchored to the pelvis without the use of cement and screws.
机译：胚状体植入物具有形成内部腔体（10）的半球形杯（5）和可接合到腔体中的插入物（7），该杯通过撞击而固定在位，并且为此必须将凹凸不平（15）固定在其上外表面，具有锭剂的形式，是连续的和有纤维的。杯（5）在其外表面上设置有两个同轴的凹槽，该凹槽构造成类似螺旋线（38）的形状，所述同轴的凹槽在所述外表面的大部分上彼此交叉，并且在杯的开口方向上倾斜且其深度沿杯（5）的打开方向逐渐增加;由于它们的相交，凹槽划定了许多重要的凹凸（15）。本发明提供了可以在不使用骨水泥和螺钉的情况下锚定到骨盆的胚状植入物的制备。

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