G4: 02nov2020.B4: 04nov2020.H11: h1: correction from serious injury to death.H10: review of the provided diagnostic report from on (b)(6) 2020, showed that the device was running on a/c power, and the device generated three ¿patient disconnect¿ alarms between the time of 01:54.23 pm and 03:09.30 pm.The field service engineer replaced the gas delivery system.The device passed all performance verification testing and was placed back into use with the customer.This reporter stated that a patient of unknown age, gender, height, and weight was admitted to a hospital on an unknown date, with the admitting diagnosis not reported.No relevant medical history, relevant past drug history or relevant concomitant medical products were reported.While admitted on an unknown date, the patient was prescribed ventilation therapy via the respironics v60 ventilator; device configuration, settings, patient circuit, and patient interface not reported.While admitted on (b)(6) 2020, the patient was receiving bipap therapy s/t mode from the v60 device, the device generated a patient disconnect alarm, and the patient experienced an outcome of death.No relevant laboratory data was reported.One gas delivery subsystem (gds) was returned to the failure investigation laboratory for analysis.Visual inspection revealed no anomalies.The returned gds failed airflow testing.The test system performed normally with the returned gds installed when the output restrictor was removed.The returned gds passed pressure and leak testing.Returned gds failed airflow testing.Root cause was failure of airflow sensor, caused by u1 drifting out of calibration.The test system performed normally with the returned gds installed when the output restrictor was removed.The returned gds passed pressure and leak testing.The root cause was failure of airflow sensor, caused by u1 drifting out of calibration.Submission of a report does not constitute an admission that medical personnel, user facility, importer, distributor, manufacturer, or product caused or contributed to the event.
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