Event detector and medication dispensing device with such an event detector

摘要

The detector (11) has a bistable magnet (12), and a switching element (18) that is arranged in a sensor coil (17) that feed a circuit (20). The switching element is reciprocally movable relative to the magnet between a set of fields (16-plus, 16-minus) and its two poles. The magnet is arranged at a movable functional element (13) such as a piston (15) or an operating rod (14). A bistable curved display (21) is attached to the circuit. A primary or secondary battery is attached to the circuit.