Abstract: For the application of bone cement, the cement must be ejected with maximum uniformity. The proposed device comprises a cylinder (10) including a distal ejection nozzle (11), said cylinder with its proximal end (12) being adapted for mounting on a displacing unit (20) for displacing a piston (13). The displacing unit (20) comprises gear means (21, 22) for converting the rotary movement of a driving journal (23) into the linear displacing movement of a driven plunger (14). The piston (13) is adapted to be connected with the driven plunger (14). In the vicinity of the driving journal (23) the displacing unit (20) comprises adapter means (30) for detachable assembly with a pneumatic drilling machine (40).

Abstract: The device for processing bone cement includes a mixing station with a stirrer for mixing the components of the bone cement under vacuum. The device also includes a resting station in which the mixed ingredients may be stationed for a resting period, processing period and curing period. The temperature-dependent reaction time on the polarmarization reaction can be taken into account in determining the discrete time intervals by means of a temperature sensor for sensing ambient temperature. Acoustic and visual signal generating devices are also provided to indicate the end of each time intervals.