Initial reporter phone#: (b)(6).Per our manufacturing records, the reported lot # does not exist for the reported cat # and therefore, the mfr and exp date are unknown.Investigation: no samples (including photos) were returned therefore the complaint could not be confirmed and the root cause is undetermined.Complaints received for this device and reported condition will continue to be tracked and trended.If samples are received in the future the complaint will be reopened for further investigation.Without a sample, an absolute root cause for this incident cannot be determined.(b)(4).
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