The biomedical engineer reported that the multigas unit was reading gases intermittently while in patient use, no patient harm was reported.This incident occurred on (b)(6) 2020 but the user facility biomedical engineer did not report it to nihon kohden until 05/12/2021.Nihon kohden continues to investigate the reported event.Nihon kohden will submit a supplemental report in accordance with 21 cfr section 803.56 when additional information becomes available.Attempt # 1: (b)(6) 2021: emailed the customer via microsoft outlook for patient information: no reply was received.Attempt # 2: (b)(6) 2021: emailed the customer via microsoft outlook for patient information: no reply was received.Importer reference file (b)(4).
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