Out of a cardiohelp complaint# (b)(4).It has been reported that there was a pressure reading issue (negative pressure).During the investigation of the cardiohelp it was detected that the pressure sensors are found to be the cause of the problem.No harm to any person has been reported.The affected product was not available for technical laboratory investigation of the manufacturer.Thus it was not possible to determine the exact root cause of the reported failure.No more information about which pressures were affected exactly was provided.However, the reported failure "pressure reading issue" can be linked to the following most probable cause according to our risk management file: wrong pressure measurement due to malfunction of the pressure sensor.Based on the investigation results the reported failure "pressure reading issue" could be confirmed.However, it is not possible to determine the exact root cause.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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