Philips received a complaint on the intellivue mx800 patient monitor indicating the monitors spo2 measurement alarms are not performing as expected; there was a delay of 30 seconds for the monitors to announce spo2 alarms.The device was in use on patient at time of event, there was no adverse event reported.Diagnostic/functional testing was performed on the device/spo2, tests were performed multiple times, and the device response was on time.This was confirmed with the nurse manager.The fse determined that the alarm may have been acknowledged at either the device or the tele room monitoring overview station which caused the alarm to reset and start again, that would show as taking longer time but because it has been reset.The fse also requested to check the clinical logs to confirm, but the customer declined.Based on the information available and the testing conducted, the cause of the reported problem is unknown.The reported problem was not confirmed.The device was confirmed to be operating per specifications and no failure was identified.
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