The manufacturer received information alleging a ventilator shut off while in patient use.The patient expired.A copy of the device's downloaded event log was forwarded to the manufacturer for review.A review of the device's event log show the device was powered on using battery power.The device was not connected to ac power.The event log shows the unit provided therapy per published specification while running on battery power.Additional review indicates the device alarmed appropriately to indicate a low battery condition, as designed.The device powered off after the battery charge was depleted.The unit was forwarded by the coroner's office to a factory authorized service center for evaluation.During evaluation by the factory authorized service center found, the device was found to operate and alarm to designed specifications.There were no issues noted with the ventilator during evaluation.
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