Device was used for treatment, not diagnosis.Patient date of birth was not provided for reporting.Lot # is not available and (b)(4), expiration date= ni, lot number = ni.(b)(4).Device evaluation/investigation could not be completed; no conclusion could be drawn as product was not returned to manufacturer.Device history records review could not be completed without a valid lot number.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
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