Abstract: A respiratory assistance device (1) for a patient, includes 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, the main channel connecting to the exterior of the respiratory system of the patient via the proximal end (6) thereof, the device further including at least one auxiliary channel (8) (209) allowing the injection of jets of breathable gas for ventilation of the patient via the distal outlet openings (17) of the auxiliary channel(s), the outlet openings opening out into the main channel in the vicinity of the distal end thereof, deflection elements (14b) (14a) allowing the deflection of gas jets to the interior of the main channel, and an internal jet separator, coaxial and central to the main channel, which further ensures diversion of the flow for expired gases.

Abstract: A respiratory assistance device (1) for a patient, includes 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, the main channel connecting to the exterior of the respiratory system of the patient via the proximal end (6) thereof, the device further including at least one auxiliary channel (8) (209) allowing the injection of jets of breathable gas for ventilation of the patient via the distal outlet openings (17) of the auxiliary channel(s), the outlet openings opening out into the main channel in the vicinity of the distal end thereof, deflection elements (14b) (14a) allowing the deflection of gas jets to the interior of the main channel, and an internal jet separator, coaxial and central to the main channel, which further ensures diversion of the flow for expired gases.

Abstract: A cock has an indexable rotating key. Indexing is achieved by a raised element on a shaped base of a housing of a barrel, and a ring which is formed at the end of the key and which is elastically deformable in a transverse plane. The raised element and ring form stubs and notches which cooperate to determine key blocking positions when the key is being rotated. The cock is suitable for use with medical instruments.

Abstract: A cock has an indexable rotating key. Indexing is achieved by a raised element on a shaped base of a housing of a barrel, and a ring which is formed at the end of the key and which is elastically deformable in a transverse plane. The raised element and ring form stubs and notches which cooperate to determine key blocking positions when the key is being rotated. The cock is suitable for use with medical instruments.