The manufacturer received information indicating a patient expired while using a trilogy ventilator.Information obtained indicated a circuit disconnect alarm condition occurred while in use.The caregivers acknowledged the device was alarming to alert the caregivers of an alarm condition, but did not respond to the audible alarm.The device was returned to the manufacturer for investigation.During the investigation, the ventilator's downloaded event logs were reviewed by the manufacturer and the manufacturer confirmed that the device alarmed appropriately at the time of the incident to alert the caregiver.The device was tested and found to operate to design specifications.There were no issues found with the device and the device passed all testing.There is no evidence to suggest the device caused or contributed to the noted event.The device maintains the event logs in non-volatile memory.An event, as logged by the device, includes every keypress, alarm or failure of the device to remain within specifications.There were no events logged related to device performance or device malfunctions.If a device malfunction occurred, the event logs would have contained entries related to the malfunction.The manufacturer concludes the ventilator operated and alarmed as designed and did not cause or contribute to the reported event.
|