It was reported that the internal pressure reading from the oxygenator was unstable.The exact instance of time could not be provided.A getinge field service technician (fst) was sent for investigation and repair.The sensor panel was 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 it could be confirmed that the pump stopped multiple times on the date of event.Further, it could also be confirmed that the connection cable for disposables was disconnected and reconnected multiple times on the day of event.The most probable root cause was determined by the fst as a loose contact on the sensor panel connector for the connection cable for disposables.According to the instruction for use of the involved disposables (hls set advanced 5.0 / 7.0, hit set advanced 5.0 / 7.0, v2.4, chapter 6.1 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.Furthermore, 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 2023-11-02 for the period of 2015-12-03 to 2023-10-27.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 2015-12-03.Based on the results the reported failure "pressure reading unstable" 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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A getinge field service technician (fst) was sent for investigation and repair.The sensor panel was replaced.The fst performed safety, calibration, and functionality checks to factory specifications.All function tests are passed.A follow-up medwatch will be submitted when additional information becomes available.
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