An electric toothbrush is described, comprising a vibrating brush head and a main unit with a vibrator motor for transfer of vibrating power to the brush head, and also a battery connected to an onoff switch for operation of the vibrator motor. To release the delivery tube from the infusion pump, a slide clamp is manually used to release the occlusion clamp to an open, non-occluding position while simultaneously occluding the delivery tube to prevent the free flow of fluid. This dispatch system schedules the order in which jobs will be processed and further randomly assigns a particular combination of process steps and tools to each job in such a way that the processing tools are evenly distributed across the jobs. 80, and the bottom of the tubular bodies is aspherical. Possible traction deactivation is signaled when fulfilling both conditions.