It was reported that moving the pressure cable lead to negative pressure values, and an acoustic alarm when the pressure dropped below zero.The event occurred during treatment.No interventions related to pressure were set.No harm to any person was reported.A getinge field service technician (fst) was sent for investigation and repair on 2023-10-24.The pressure cable was replaced.The fst performed safety, calibration, and functionality checks to factory specifications.All function tests are passed.The affected pressure cable was discarded.According to the getinge field service technician there were no visible damage at the pressure cable and the replacement did solve the reported failure "moving the pressure cable lead to negative pressure values".Therefore the most probable root cause could be determined as a loose connection in the pressure sensor cable.According to the instructions for use hl 20 version 02 in chapter 5.5.1 preparing pressure monitoring and inserting the pressure sensors: the user to use only a fully functional pressure monitoring module during the operation and always perform a complete function test with pressure sensor before use.The review of the non-conformities has been performed on 2023-11-08 for the period of 2015-11-12 to 2023-10-24.It 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 device was manufactured on 2015-11-12.Based on the results the reported failure "moving the pressure cable lead to negative pressure values" could be confirmed.The customer will be informed about the results by the getinge sales and service unit.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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