摘要 |
A device for respiratory assistance which comprises a tube (4) having at least one auxiliary channel (8) connected to a source of respirable gas (25). The conduit (28) connects the source of respirable gas (25) to the auxiliary channel (8). The device further includes:toward the source (25), a device for loss of head (30) which is able to impose on the jet of respirable gas a predetermined flow rate value and a predetermined pressure value; andtoward said auxiliary channel (8), a calibrated exhaust valve (32) which is able to bring the conduit (28) into communication with the atmosphere when the pressure in the conduit (28) exceeds said predetermined pressure value. |