It was reported by the user facility that while priming/recirculating bloodlines and dialyzer, noticed the saline bag filling; also noticed the fill program alarm present.A patient was not connected to the machine at the time of the incident.The nurse discarded tubing/dialyzer, and reset up with new supplies.The machine continued service with no further issue reported.
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Investigation findings to date indicated the reported malfunction occurred during recirculation and prime (machine set-up), and typically not during dialysis mode.The user visually observed the saline bag refilling with dialysate during circulation.There have been on adverse events associated with the reported issue.As per field service report could not duplicate the saline bag back fill, ran recirculation 3 times.The venous module was replaced for precaution and recalibrated venous pressure and air detector.An investigation of the device manufacturing records was conducted by the manufacturer.There were no deviations or nonconformances during the manufacturing process.In addition, the batch record review confirmed the labeling, material, and process controls were within specification.
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