The facility did not involve the local dräger s&s organization into examination and repair of the device.A logfile was not available for the investigation at the manufacturer.A case-specific evaluation was thus not possible.The device was manufactured in september 2011.In general the device is designed to post an alarm if mains power gets lost for any reason and to continue operation on battery supply.The residual battery capacity is being displayed; with a fully charged battery the minimum runtime is 30 minutes.Manual ventilation with the built-in breathing bag remains possible even in switch-off state.It was not possible to determine the exact root cause for the described issue.On site a mainboard was exchanged; no further details were provided.In fact, it is not clear if the device was in use during the event and a transient voltage spike resulting from the power loss in the care unit has led to a damage of the electronics in the anesthesia device resulting in shut-down.Another potential explanation would be that the activation failure of the device and the power outage were two independent events ¿ the device was not used before and should have been put into operation after the power loss which was not possible due to a malfunction that was present before start-up already.Other scenarios would be imaginable as well and, a differentiation is not possible due to lack of information.The device is about 12 years old; a malfunction of a single electronic component after such long time of use can be considered acceptable.Appropriate risk mitigation measures are in place.H3 other text : device not available for investigation, 3rd party service.
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