The device was not returned to the manufacturer for physical evaluation, and the lot number was not provided.Therefore, the failure mode cannot be confirmed.A definitive conclusion regarding the complaint incident cannot be reached without a physical examination of the complaint device.A manufacturing review was performed of the products shipped to the dialysis center for the three (3) month time frame which immediately preceded the event occurrence date.This review included the lot numbers for all fresenius bloodline products from the reported catalog number (03-2722-9) shipped to this account within the selected time frame.A records review was performed on all lots identified.An investigation of the device manufacturing records was conducted by the manufacturer.There were no deviations or non-conformances identified during the manufacturing process which could be associated with the reported event.In addition, the batch record review confirmed the labeling, material, and process controls were within specification.The lots passed all release criteria.A review of the batch production records did not reveal a probable cause for the customer complaint.There were no non-conformances identified that relate to the reported event, and all lots met release criteria.
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