RESPIRATORY ASSISTANCE DEVICE, NASAL APPARATUS AND RESPIRATORY ASSISTANCE MASK

摘要

A respiratory assistance device (1) for a patient, comprising a tubular element forming a main channel (5) (207) which is to be connected via the distal end (7) thereof to an airway of the patient, said main channel connecting to the exterior of the respiratory system of said patient via the proximal end (6) thereof, said device further comprising at least one auxiliary channel (8) (209) allowing the injection of jets of breathable gas for ventilation of said patient via the distal outlet openings (17) of the auxiliary channel(s), said outlet openings opening out into said main channel in the vicinity of the distal end thereof, deflection means (14b) (14a) allowing the deflection of gas jets to the interior of said main channel. The device is characterized by an internal jet separator, coaxial and central to the main channel, which further ensures diversion of the flow for expired gases.