An arterial flow/bubble sensor alarm during treatment was reported.A getinge service technician was sent for investigation on 2021-12-13.The technician checked all possible root causes in regards to malfunctions of the digi flow board or the sensors.He could not confirm any malfunctions.The unit was tested and put back in use.Within the related support case the log files were analysed.The reported technical "arterial flow/bubble sensor alarm " could be confirmed, but no malfunction of the device.An exact root cause could not be identified.However, with reference to the current risk file the following most possible causes could be linked to the reported failure: wrong bubble sensor information; influence due to other ultrasonic devices (e.G.Flow sensor); connection of non-compatible sensor; environmental influences (atmospheric pressure, temperature, humidity, emi, overvoltage).Based on this results the reported failure "arterial flow/bubble sensor alarm" could be confirmed, but not a product related malfunction could be confirmed.The occurrence rate was calculated for the reported issue and it was determined that this is not a systemic issue.Therefore, no remedial action is required.The occurrence rate related to the reported issue is currently being monitored as part of maquet cardiopulmonary¿s trending program and additional investigations or corrections will be implemented in case of adverse trending.
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