Device evaluation: the breathing circuit was returned.As a result of observing the sample, melting and dents were confirmed.When a leak test of the breathing circuit was performed, the pressure did not rise and a leak was confirmed.The reported event was confirmed.The root cause may be due to manufacturing.The sample was sent for further investigation.Dhr review was completed.Review of manufacturing records, relevant to the lot reported, found no discrepancies or anomalies.
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