| 摘要 |
<p>Hip joint endoprostheses are generally constructed in a modular manner. They are comprised, for example, of a shaft on which a ball head is attached and a hip joint socket constructed of two parts. Said socket is comprised of a socket housing and a socket insert which is a bearing shell for the ball head. Unfavorable material pairings can result between the socket housing and the socket insert especially during assembly of the hip joint socket by mismatching elements which do not fit together. In addition, danger results in that relative movements between the socket insert and the socket housing occur under strain thus leading to wear. As a result, the invention provides that the bearing shell (2) of the hip joint socket (1) is coated with a coating (5), said coating being comprised of a biocompatible metal or a biocompatible metal alloy, in the area of the shell surface (4) with which the shell is inserted into the hip bone.</p> |
