The initial information that was received stating a defective safety valve was incorrect.The information received now states that the ventilator was examined and it was found that the user interface (ui) (touchscreen) was not working.The ui has been replaced and the ventilator was put back in service.The ui has not been returned for investigation therefore the true cause of its malfunctioning has not been determined.The user interface is for setting ventilation modes, displaying patient date and indication of alarms.The malfunctioning of the user interface will be noticed before start or it will not affect ongoing ventilation.Ongoing ventilation will continue unabated with the set parameters and alarm limits.The ui does not mix or regulate gases nor does it deliver or exchange gases to the patient.H3 other text : not returned.
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