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The ufr was the only information for this case; the hospital did not involve the local dräger s&s organization into any follow-up measures.The contact person named in the ufr could not provide further information.Dräger is unable to perform a case-specific evaluation, the following can be derived from the available details: the description of event would suggest that the device shut itself down due to complete loss of energy.If this postulation is correct, it can be stated that the device posted a corresponding alarm via a buzzer for at least two minutes, this buzzer is powered by an independent power source (goldcap capacitor).The particular model is equipped with an internal battery that is capable to supply the device with energy in case of mains power losses for at least 30 minutes.Hence, it is nearly to be excluded that the reported shut-down occurred in single-fault conditions.It would be plausible that the device was put into operation with a completely worn internal battery which could not supply the device with energy when mains power got lost for whaever reason.Other scenarios may apply as well.Dräger cannot draw a reliable conclusion without the possibility to inspect the device.Multiple aspects must be taken into consideration as contributing factors - these include component malfunctions, infrastructure problems, lack of preventive maintenance and use errors.
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