It was reported that the hl20 was malfunctioning before the operation and it was routinely turned on to check whether each pump was working.No patient was involved.One double head pump was turned on and displayed the error message: "head" after it was turned on for 1 minute.After that the pump was no longer used.The customer stated that the double-head pump was later turned on normally and no service was requested.Thus the reported failure could not be confirmed.However the failure mode "head error" can be linked to the following most possible root causes according to the hl 20 risk management file (dms# 2023585, version 11): failure of pump control board.Defective/ dirty tacho, relay or pump belt.The device in question was manufactured on 2017-09-26.The review of the non-conformities during the period of 2017-09-26 to 2022-06-21 does not show any non-conformity in regard to the reported product and failure.There is no indication that manufacturing issues occurred during this time, thus production related influences are unlikely.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.
|