The investigation was based on the reported event, further email correspondences and logfile analysis of the evita v800 with the serial no.(b)(6) at the manufacturer site.In the following correspondence it could be clarified that the patient was in an or room between 11:27 bis 13:28 pm which was also analyzed via the logfile documentation.Since the time of the affected device was not adjusted, a time shift of +1h was documented here.After returning to the its, the patient was reconnected to the device at 1:28 p.M (device system time) and several settings were made, according to the log file.However, the device was not activated from standby.That did not happen until 2:55 pm, according to the log file.After that, several alarm messages concerning "airway pressure high" were posted around that time.At 7:08 pm the device was switched into standby mode.As per log file a system test was performed successful on november 19th.A device malfunction or a stop of the ventilation could not confirmed.A misinterpretation of the anti-air shower function, as initially reported, could not be confirmed.Obviously, the user was not aware about the ventilation was in standby mode.In case that the ventilation will not started by the user the device remains in standby mode.The patient would not ventilated.The text ¿standby patient not ventilated" would displayed on the screen.The results of the investigation did not reveal any new risks which are not covered by the product risk management file.
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