Log file evaluation gave an indication that a problem with the motor position detection system in the ventilator unit was the root cause for the ventilator failure.Further examination of the device hardware confirmed this; the light barrier and the dedicated cable have been replaced which has fully solved the device problem.Dräger finally concludes that the device responded as designed upon the malfunction of a single electronic subsystem which has failed after approximately 12 years of operation.The issue is rated to be an isolated case.No patient consequences have occurred.
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