The following were reviewed as part of this investigation: patient severity, applicable previous investigation(s), sample (if available), applicable fmea documents, labeling, and applicable manufacture records.Based on a review of this information, the following was concluded: product was not returned for evaluation/repair.Complaint investigation and root cause determination could not be completed without physical evaluation of the unit.The device was returned to the service facility for evaluation.During evaluation, the reported issue of the picture quality changes mid procedure and being extremely grainy is unconfirmed.The root cause of the reported failure is inconclusive as the reported issue could not be reproduced during evaluation.The scanner image is normal and functions normally.A history review of serial number (b)(4) showed no other similar product complaint(s) from this serial number.
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