Administration device for the administration of a liquid drug over an extended time period to a patient, comprising: an administration unit a housing, the housing comprising the administration unit a controller unit (80) adapted to receive an alarm triggering signal a patient state monitor (100, 100, 100"), the patient state monitor (100, 100, 100") comprising a motion-sensitive sensor unit (140, 140, 200), the patient state monitor (100, 100, 100") being adapted to process a sensor signal (SS) generated by the motion-sensitive sensor unit (140, 140, 200) and being adapted to generate an alarm triggering signal and to transmit the alarm triggering signal to the controller unit (80) if processing of the sensor signal (SS) indicates a patient motion level below a pre-defined motion level. Method for detecting patient motion below a pre-defined motion level.
