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: the device was returned to the service facility for evaluation.During evaluation, the reported issue of a black shadow in the center of the ultrasound image was unconfirmed.The probe was evaluated with an in-house sr 8 scanner and the image was normal with no dark streaks.No other functionality issues with the equipment were found during evaluation/servicing.The root cause of the reported failure is inconclusive as the reported issue could not be reproduced during evaluation.A history review of serial number (b)(4) showed no other similar product complaint(s) from this serial number.
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