Plant investigation: the actual device was returned to the manufacturer for physical evaluation.An exterior visual inspection of the returned cycler showed no signs of physical damage.Upon power up, the cycler touch screen test failed.When powering on the cycler, the ok, stop and up/down arrow push buttons illuminated, however the front panel touch screen remained blank.It was identified that the cause for the blank screen was due to an internal short present on the transformer (t1) of the inverter board.The inverter board is located on the rear of the touch screen.A known good inverter board was installed and the display became fully operational.There were no other discrepancies during the internal inspection of the returned cycler.A review of the device manufacturing records was conducted by the manufacturer.There were no deviations or non-conformances during the manufacturing process.In addition, a device history record (dhr) review was performed and verified that the results of the in-progress and final quality control (qc) testing met all requirements.Upon completion of the evaluation, the reported issue was confirmed and the cause was determined to be an internal short of the transformer on the inverter board.The cycler was refurbished following the evaluation.
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It was reported that the screen of a patient¿s liberty select cycler appeared dim and is flickering during an unknown phase of their peritoneal dialysis (pd) treatment.The power cord was properly connected into a wall outlet.At that point in time, the technical support representative advised the patient to discontinue use of the cycler and to notify their peritoneal dialysis registered nurse (pdrn) of the event.A replacement cycler was issued to the patient.It was reported that an alternate treatment option was available.Upon follow up, it was confirmed that there were no adverse events or medical intervention required as a result of the reported event.The patient completed treatment on the date of the event.Upon physical evaluation of the cycler by the manufacturer, evidence of an internal short on the transformer on the inverter board was identified.
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