Cough assist device for performing at least one insufflation of gas to a patient, comprising: - a motorized turbine in fluidic communication with a gas circuit (4, 5, 6) comprising an insufflation line and an exsufflation line, - a display screen, - and control means configured to control the turbine and a display on the display screen, said control means being configured to display, on the display screen, a video animation implementing a graphical representation symbolizing a patient during at least one phase of insufflation of gas, where - it comprises a flow rate sensor arranged on the path of the gas downstream of the outlet of the turbine and configured to carry out measurements making it possible to determine the gas flow rate supplied by the turbine, said measurements carried out by the flow rate sensor being processed by the control means in order to deduce therefrom a volume of gas delivered by the turbine, - the shape, the appearance and/or the dimensions of said graphical representation displayed on the display screen vary in correlation with the volume of gas supplied to the patient by the turbine, during said at least one phase of insufflation of gas, and - the control means are configured to: a) trigger a start-up of the turbine, and simultaneously of the video animation, in response to an activation, by the user, of insufflation start-up means or to a detection of an inspiration by the user, and b) stop the turbine, and simultaneously the video animation, when a maximum insufflation pressure is reached or at the end of a maximum duration of insufflation. - a motorized turbine in fluidic communication with a gas circuit (4, 5, 6) comprising an insufflation line and an exsufflation line, - a display screen, - and control means configured to control the turbine and a display on the display screen, said control means being configured to display, on the display screen, a video animation implementing a graphical representation symbolizing a patient during at least one phase of insufflation of gas, where - it comprises a flow rate sensor arranged on the path of the gas downstream of the outlet of the turbine and configured to carry out measurements making it possible to determine the gas flow rate supplied by the turbine, said measurements carried out by the flow rate sensor being processed by the control means in order to deduce therefrom a volume of gas delivered by the turbine, - the shape, the appearance and/or the dimensions of said graphical representation displayed on the display screen vary in correlation with the volume of gas supplied to the patient by the turbine, during said at least one phase of insufflation of gas, and - the control means are configured to: a) trigger a start-up of the turbine, and simultaneously of the video animation, in response to an activation, by the user, of insufflation start-up means or to a detection of an inspiration by the user, and b) stop the turbine, and simultaneously the video animation, when a maximum insufflation pressure is reached or at the end of a maximum duration of insufflation. a) trigger a start-up of the turbine, and simultaneously of the video animation, in response to an activation, by the user, of insufflation start-up means or to a detection of an inspiration by the user, and b) stop the turbine, and simultaneously the video animation, when a maximum insufflation pressure is reached or at the end of a maximum duration of insufflation.