Additional information: three lot numbers for this incident were provided.The information for each lot number is as follows: medical device lot #: 6253706, expiration date: 1/31/2018, manufacture date: 9/92016.Medical device lot #: 6253709, expiration date: 1/31/2018, manufacture date: 9/9/2016.Medical device lot #: 6253710, expiration date: 1/31/2018, manufacture date: 9/9/2016.Device evaluation: results: bd did not receive samples or photos from the customer facility for investigation.Therefore, retention samples from the incident lots were selected for testing.All tubes performed as expected and no product issues were observed during the investigation.A review of the device history record was completed for the incident lot numbers and, based on this review, all product specifications and requirements for lot release were met; there were no related quality non-conformances during manufacturing of the product.Conclusion: based on the investigation, a root cause could not be determined.The results of internal testing show acceptable performance.Based on follow up with the customer, patient conditions were a potential root cause for the reported elevated reading.
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