| 摘要 |
The invention concerns an apparatus for respiratory assistance comprising an branch for breathing in (7) connecting powered turbines (T1, T2) to a user's respiratory routes. The turbines (T1, T2) are pneumatically connected in series during the phases when the user is breathing in. The branch for breathing in (7) comprises a secondary valve (10) and a valve for breathing out (11) which are opened and closed by pneumatic balloons (12, 13) or membranes. Switching means comprise electrovalves (EV1, EV2) controlled by monitoring means (16) enable to connect the turbines substantially tightly to the branch for breathing in (7) during the phases when the user is breathing in, by operating on the pneumatic balloons (12, 13) of the valves (10, 11) to enable the branch for breathing in (7) to be supplied with gas. A secondary branch (17) comprises gas conduits (1 to 5) and the two electrovalves (EV1, EV2). The invention also concerns a method for controlling said device. |
