It was reported that the venous pressure reading was high.The failure occurred during patient treatment.The hls set was discarded by the customer.A getinge field service technician (fst) was sent for investigation on 2023-06-09.The failure could not be duplicated and therefore no parts were replaced.The fst performed safety, calibration, and functionality checks to factory specifications.All function tests are passed.The log files of the reported cardiohelp device were reviewed and no pump stop occurred on the date of event.An exact root cause could not be determined.According to the fst the most probable root cause could be narrowed down to the affected hls set or a clinical issue.Moreover, according to the risk file of the cardiohelp device the following root causes can lead to the reported failure: disturbed pressure sensor, defective pressure sensor, too high/low atmospheric pressure.Furthermore in the instruction for use of the involved disposables (hls set advanced 5.0 / 7.0, hit set advanced 5.0 / 7.0, v2.4, chapter 6.1 preparation and installation and quadrox-ir small adult / adult, chapter 7.2 priming the system) it is stated that the pressure sensors have to be calibrated and checked before priming.Further the cardiohelp has a flow/bubble sensor and a venous probe to measure and control the blood flow and parameters.If the measured values are above high limit or below low limit of the set limits the system generates a visual and acoustical alarm.The review of the non-conformities has been performed on 2023-06-12 for the period of 2019-07-19 to 2023-06-09.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 2019-07-19.Based on the results the reported failure "high venous pressure reading" could not 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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