| 摘要 |
PCT No. PCT/EP92/02163 Sec. 371 Date Mar. 18, 1994 Sec. 102(e) Date Mar. 18, 1994 PCT Filed Sep. 18, 1992 PCT Pub. No. WO93/05728 PCT Pub. Date Apr. 1, 1993.Endoprosthesis with a prosthesis part (4) of viscoelastic synthetic resin such as polyethylene which is intended to be fastened to a support part (1) of more resistant material such as metal by a screw element (3). The screw element has a release locking which consists of a sequence of elevations (14) and depressions which dig into a surface (13) of the synthetic resin with plastic deformation of the latter. For this purpose, a pair of surfaces on the screw element and the synthetic resin part are chosen, whose spacing is determined by the design (in particular by hard stops 8, 9) and which surfaces do not transmit the force with which the screw element is tightened. |
