The customer reported that they had product from the 2991 cobe (wash cells) that failed the sterility testing.Per the customer, they believe the contamination is likely human error, not device-related.The customer destroyed the product, therefore, there was not a transfusion recipient or patient involved and no patient information is reasonably known at the time of the event.The disposable set is not available for return because it was discarded by the customer.
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This report is being filed to provide additional information in g.2, h.6 and h.10.Investigation: a review of the device history record (dhr) for this unit showed no irregularities during manufacturing that were relevant to this issue.A disposable history search indicated there were no other reported occurrences of microbial contamination on this lot worldwide.Per internal lab documentation, the devices terumo bct manufactures to collect, separate, and store blood products are terminally sterilized to a sterility assurance level (sal) of =10-6.Additionally, a sterility assurance system has been designed and employed to ensure this sal will be achieved for every lot of product manufactured.The sterility assurance system employed at terumo bct ensures the disposable device is not the source of contamination.Root cause: a definitive root cause could not be determined.Sources of bacterial contamination include but are not limited to connection to the disposable set, third party solutions used in the procedure and/or post-processing laboratory practices such as qc sampling or handling techniques.Additionally, the sterility assurance system employed at terumo bct ensures the device is not the source of contamination.
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