version control for medical devices anesthesia

Method and control system for a medical device (G) or a group of medical devices (G), comprising a plurality of separate components, wherein one component comprises a microprocessor respectively and at least one executable program. The system includes an eligibility memory (MEM) performed on each medical device or on selected medical devices. Said system includes a function of unlocking and locking (RSF) which controls the startup of the medical device (G) or of individual functions of the apparatus (G). The system includes a control module (P) to detect all versions of all currently installed programs and is also intended to access the eligibility memory (MEM) and check if the device status REEL is detected as a qualifying condition.