Plant investigation: no parts were returned to the manufacturer for physical evaluation.
Additionally, no on-site evaluation was performed by a fresenius regional equipment specialist (res).
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 identified during the manufacturing process which could be related to 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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