Christian Gugler,Martin Schmidt,Andreas Meyenhofer
申请号：
US14006269
公开号：
US09198761B2
申请日:
2012.03.21
申请国别(地区):
US
年份:
2015
代理人:
摘要：
The invention relates to a ball-and-socket implant (I), in particular an acetabular implant, preferably in the shape of a spherical cup shell, said implant having at least one region with a surface structure (2, 7). The at least one region extends between the equator and the pole of the spherical cup shell. The surface structure comprises a plurality of structural elements (6), each of which is formed by a plurality of intersecting ridges (3, 8) with opposite inclinations. The number of structural elements (6) on the equator (5) or on a circle of latitude near the equator is the same as on a circle of latitude near the pole. The ridges (3, 8) have a curvature such that the inclination of the ridges with respect to the circles of latitude, and thus an angle between a tangent of the ridge curvature and a circle of latitude, continuously increases from the equator (5) to the pole (4).
