CUP FOR A COTYLOID IMPLANT INTENDED TO BE IMPLANTED IN AN ACETABULAR CAVITY

This cup (1) has an internal cavity (2), in order to accommodate an insert, and an outer surface (4) to be joined to the acetabulum. The outer surface (4) is a hemisphere which has an equatorial lip (10), a protruding equatorial region (20), and a polar region (30). The equatorial region (20) has a height (H20) parallel to the central axis (X4), and it has circular grooves (21, 22, 23), and oblique grooves which are arranged transversely with respect to the circular grooves (21, 22, 23) and which comprise primary oblique grooves (25.1) oriented to the right and secondary oblique grooves (25.2) oriented to the left. La copa (1) tiene una cavidad interior (2), para alojar un inserto, y una superficie exterior (4) para ser asegurada al acetábulo. La superficie exterior (4) es un semiesferoide que tiene un labio ecuatorial (10), una región ecuatorial sobresaliendo (20), y una región polar (30). La región ecuatorial (20) tiene una altura (H20) paralela al eje central (X4), y tiene surcos circulares (21, 22, 23) y surcos oblicuos que están distribuidos transversalmente a los surcos circulares (21, 22, 23) y que comprenden surcos oblicuos primarios (25.1) orientados a la derecha y surcos oblicuos secundarios (25.2) orientados a la izquierda.