It was reported that the hl20 pump displayed the error message: ¿runaway¿ and that a pump cover clip was broken.The event occurred during a routine check.After the "runaway" error was resolved the error message "safety-s" was reported.No harm to any person has been reported.A getinge field service technician (fst) was sent for investigation and repair on 2024-02-12, 2024-02-15 and 2024-02-24.The runaway error was resolved by cleaning the tacho strobe.The safety-s error was resolved by refitting of all circuit board connections.No parts were replaced in regards to this failures.The broken cove clip was replaced.The fst performed safety, calibration, and functionality checks to factory specifications.All function tests are passed.The most probable root cause for the failure "runaway" error was determined as contamination on the tacho strobe, since cleaning of the tacho strobe did solve the failure.A similar case was assessed by the getinge life cycle engineering on 2024-03-04.Because the error "safety-s" was resolved by refitting of all circuit board connections the most probable root cause was determined as communication disturbances due to transition resistance that can arise from surface corrosion.The damaged pump cover clip can be linked to the following most possible root causes according to the hl 20 risk assessment: housing damaged because of: mechanical impact.Rough handling.Operation/ transport/ storage under wrong (environmental) conditions.Wrong cleaning/ disinfection process and/ or substance.Aging of material (manufactured 2007-04-04).The review of the non-conformities has been performed on 2024-02-15 for the period of 2007-04-04 to 2024-02-12.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 2007-04-04.Based on the results the reported failure "runaway, safety-s and broken pump cover clip" 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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