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: during servicing the image was found to have interference in the ultrasound box due to an internal failure in the probe.The review of the dhr, sub-assembly dhr, sub-assembly manufacturing, component records, manufacturing process changes, mrr/mrb, and internal rejects showed that the reported issue is not likely related to a manufacturing issue.No other functionality issues with the equipment were found during evaluation/servicing.The device was serviced, tested, and returned to refurbished inventory.A lot history review (lhr) review is not possible, as the device is manufactured using a unique serial number and not by lot number.A history review of serial number (b)(4) showed no other similar product complaint(s) from this serial number.
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