Patent ID: 8375946

Claim:
A tubular device for respiratory assistance which forms a main channel designed to be connected by its distal end to a respiratory airway of a patient such that said main channel connects the respiratory system of said patient to the outside, said device comprising: at least one auxiliary channel connected to a source of breathable gas in order to be able to blow a stream of such breathable gas through at least one distal orifice arranged in front of the distal end of said main channel; and fluid communication means which are arranged between said distal orifice of said auxiliary channel and said distal end of said main channel, wherein said device for respiratory assistance further comprises: diversion means for diverting a volume fraction of said breathable gas intended for said auxiliary channel, before said breathable gas enters the auxiliary channel; aspiration means for aspirating ambient air, driven by said diverted fraction of breathable gas, wherein said aspiration means are connected to said fluid communication means so that the fluid communication means is configured to convey the aspirated ambient air, mixed with said diverted fraction of breathable gas, into said main channel; and regulating means for regulating said fraction of breathable gas diverted by said diversion means.