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    • 11. 发明公开
    • KÜNSTLICHES GELENK
    • KÜNSTLICHESGELENK
    • EP1575455A1
    • 2005-09-21
    • EP03782141.0
    • 2003-12-09
    • HJS Gelenk System GmbH
    • ABICHT, ChristianADAM, PeterKUBEIN-MEESENBURG, DietmarNÄGERL, Hans
    • A61F2/38A61F2/30
    • A61F2/389A61F2/4637A61F2002/30037A61F2002/30133A61F2002/30331A61F2002/30604A61F2002/30878A61F2002/465A61F2220/0033A61F2230/0015A61F2310/00011
    • The invention relates to an artificial joint (1) embodied more particularly in the form of a knee joint prosthesis and a to method for the production thereof. The artificial joint (1) comprises a joint plateau (3) which is provided with a recess (6) and a joint overlay (4) endowed with a projection (5), which are connected together in a non positive and positive fit on a contact surface. The projection (5) has an overdimension in relation to the recess (6). Said overdimension is reduced by cooling the projection (5) thereby enables mounting to be simplified. During subsequent equalisation of temperature, thermal expansion leads to a tensing of the projection (5) in the recess (6). The contact surface (9) or the overdimension (7) has, according to location, different dimensions such that securing forces acting upon the projection (5) produces a state of tension in the joint overlay (4) at body temperature of the patient, whereby said state of tension increases the load-bearing capacity of the joint (1).
    • 本发明涉及一种更具体地体现为膝关节假体形式的人造关节(1)及其制造方法。 所述人造关节(1)包括设置有凹部(6)和带有突起(5)的接合覆盖层(4)的接合平台(3),所述接合覆盖层以非形状配合和形状配合地连接在一起 接触表面。 突起(5)相对于凹部(6)具有超尺寸。 所述过度尺寸通过冷却突起(5)而减小,由此使安装得以简化。 在随后的温度均衡期间,热膨胀导致凹槽(6)中的突起(5)的张紧。 根据位置,接触表面(9)或超尺寸(7)具有不同的尺寸,使得作用在突起(5)上的固定力在患者的体温下在关节覆盖层(4)中产生张紧状态, 由此所述张力状态增加了接头(1)的承载能力。