Patent ID: 8646448

Claim:
A ventilator comprising: a breathing circuit adapted to interact with a patient, said breathing circuit being operable in a plurality of different modes to provide breathing assistance to the patient as actual breathing support generated in the breathing circuit and delivered to the patient as an output of the breathing circuit, including an EMG-controlled mode and a non-EMG-controlled mode; a control unit that operates said breathing circuit in a selected one of said plurality of modes; a registration unit that registers said actual breathing support provided by the breathing circuit to the patient; and said control unit being connected to said registration unit and being supplied with an EMG signal from the patient, said control unit being configured to determine, from an output of said registration unit and said EMG signal, whether an asynchrony exists based on a time relationship between said EMG signal and said actual breathing support and, if said asynchrony is determined to exist while said control unit is operating said breathing circuit in said EMG-controlled mode, said control unit being configured to cause a switch from operation of said breathing circuit in said EMG controlled mode to operation in said non-EMG-controlled mode.