Accutron has made multiple attempts to contact the user facility regarding the report of "patients reacting unusual to nitrous" however, the user facility has not responded.The digital ultra flowmeter subject of the reported event was sent back to accutron for evaluation.Evaluation results determined that no issues were noted with the function or operation of the device and the digital ultra flowmeter was found to be operating according to specification.A follow-up report will be submitted should additional information become available.No additional issues have been reported.
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