| 摘要 |
<p>Endoprosthesis for cotyloid cavity, comprised of an implantable support (1) and of an insertion piece (2) secured thereto and forming the articulation surface (14), the support and the insertion piece having contact surfaces (5, 6) which co-operate and are symmetrically arranged as to the rotation or star mounting to a medial axis of the support (9), whereas the shape of the articulation surface (14) differs from the shape of a rotation surface arranged to said axis, so that the articulation surface is displaceable according to various angular interadjustments of the contact surfaces. In order to determine the direction of the articulation independently of the insertion direction of the support (1) into the bony acetabulum, there is provided that the direction (16) of the articulation surface (14) determined by the delimitation of the opening differs from the direction of the support middle axis (9) so that the delimitation of the opening is larger on one side (23) of the support (1) than on the other side.</p> |
