It was reported that internal pressure and arterial temperature readings failed during treatment.The customer changed to a new connection cable for internal sensors which functioned appropriately.Since this fixed the failure, the customer did not request any further service of the device.It was confirmed by the fst that no visible damage could be found on the cable.Another disposable connection cable with the same failure was investigated by getinge life cycle engineering on 2021-08-30.The root cause for the reported malfunction could be traced back to a missing electrical connection within the cable.The root cause for the missing connection is a broken wire within the cable, which most likely originated from external force.Furthermore, according to the risk analysis v24 following root causes can also linked to the reported failure: a mechanical damage e.G.Due to too high forces during connection/ disconnection of the cable.Broken fiber inside the cable.According to the instruction for use of the involved disposables (hls set advanced 5.0 / 7.0, hit set advanced 5.0 / 7.0, v2.3, chapter 7.1 preparation and installation and quadrox-ir small adult / adult, chapter 7.2 priming the system) the pressure sensors have to be calibrated and checked before priming.According to the instruction for use of the cardiohelp (chapter 6 ¿during the application¿) the cardiohelp should only be operated with activated temperature sensors and to ensure that the warning and alarm limits, as well as the interventions, are suitable for the patient and current situation.An external temperature sensor can be used.The device was manufactured on 2017-06-19.The review of the non-conformities has been performed on 2022-06-10 for the period of 2017-05-19 to 2022-06-08.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 to have contributed to the reported failure.Based on the results the reported failure "internal pressure and arterial temperature readings failed" 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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