SIMULATOR FOR WEAR TESTING OF HIP ENDOPROSTHESES

摘要

FIELD: measurement.SUBSTANCE: invention relates to simulators for wear testing of artificial joints by mechanical methods and in particular for testing of hip endoprostheses. Simulator for wear testing of hip joint endoprostheses comprises one or more test units, each of which comprises a frame structure with the possibility of its oscillatory movement relative to the longitudinal horizontal fixed axis of the device FE, in which there are from one to several test stations comprising a U-shaped bracket, having the possibility of rocking in the direction of transverse moving axis AA, and mounted thereon rotatable relative to vertical movable axis IOR by means of a rotating arm with a glass containing the femoral endoprosthesis component with a head centered at the intersection of said three mutually perpendicular rotational axes, and the arm has a movable sliding contact with a fixed guide mounted on the base of the device, where a rotary arm is mounted parallel to the longitudinal axis of rotation FE to rotate relative to the vertical axis IOR.EFFECT: technical result: satisfaction of the requirements and limitations of the ISO 14242-1 standard in terms of the shape of the angular displacement diagrams and the necessary sequence of Euler rotations when wear testing of hip endoprosthesis, as well as ensuring the cost reduction of the device by reducing the number of drives to make these movements.3 cl, 8 dwg