| abstract |
The invention relates to a respiratory assistance device comprising: an inspiratory branch (2) permanently connected, at its upstream end, to a first source of flow (1) of pressurized gas and, at its downstream end, to the respiratory tract of a user, at least a first (9) and a second (3) expiratory valves arranged on said respiratory branch (2) controlled to be closed during the inspiratory phase, a detection means (10) detecting, near the the downstream end of the inspiratory branch, the respiratory activity of the user and transmitting respiratory activity data to control means (12), said control means (12) controlling the first source of flow (1) of gas so as to deliver, in the inspiratory branch (2), a gas flow with a non-zero flow rate and substantially constant throughout the expiratory phase. <IMAGE> |