Patent ID: 8656914

Claim:
A method of medically ventilating a patient via a hose system, the method comprising the steps of: selecting a predetermined ventilation mode from a plurality of predetermined ventilation modes; generating a respiratory flow according to the predetermined ventilation mode selected, the predetermined ventilation mode selected determining a type of hose system that should be used; generating a first sensor signal, indicative of an inspiratory flow distant from the patient, wherein a connected hose system is provided between the patient and the location from which the first sensor signal is generated; generating a further sensor signal indicative of the respiratory flow proximal to the patient, wherein the location from which the further sensor signal is generated is at the connected hose system, or is adjacent to the patient; determining an expected sensor signal, indicative of the respiratory flow proximal to the patient, on the basis of the first sensor signal and the predetermined ventilation mode selected, wherein the type of hose system that should be used establishes a pre-determined relationship between the first sensor signal and the expected sensor signal; and controlling the ventilating with a control action that depends on the expected sensor signal.