| 摘要 |
The present invention relates to 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). According to the invention, in the conduit (28) connecting said source of respirable gas (25) to said auxiliary channel (8), said device includes: toward said 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; and toward said auxiliary channel (8), a calibrated exhaust valve (32) which is able to bring said conduit (28) into communication with the atmosphere when the pressure in said conduit (28) exceeds said predetermined pressure value. |
