Defective component (breathing circuit), item number :c45101314j, lot number :4104011.Observation of the returned breathing circuit and breathing bag revealed no abnormalities such as damage related to the reported event.Next, we conducted a leak test on the breathing circuit and air leakage was confirmed.No leaks were found in the breathing bag and it conformed to the standard.The reported event was confirmed.Root cause: the root cause may be due to manufacturing.Dhr: review of manufacturing records, relevant to the lot reported, found no discrepancies or anomalies.
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