Plant investigation: no parts were returned to the manufacturer for physical evaluation.Additionally, no on-site evaluation of the unit was performed by a fresenius regional equipment specialist (res).The biomedical technician (biomed) replaced the blood pump module which resolved the issue.The unit was returned to service at the user facility without a recurrence of the event as reported.A records review was performed on the reported serial number.An investigation of the device manufacturing records was conducted by the manufacturer.There were no non-conformances or any associated rework during the manufacturing process which could be associated with the reported event.In addition, the device history record (dhr) review confirmed the results of the in-progress and final quality control (qc) testing met all requirements.The investigation into the cause of the reported problem was not able to be confirmed.A definitive conclusion regarding the complaint incident cannot be reached without a physical examination of the complaint device.
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