Device usable for resuscitation of a person in cardiac arrest artificial respiration, the rib cage is subjected to compression and alternating decompression in order to restore the movements of expiration and inspiration, said device comprising: - a tubular element (5, 25) forming a main channel (7, 27) and which is intended to be connected at its distal end (5D, 25D), to an airway of said person (3), while the proximal end (5P, 25P) of said tubular element is on the outside of said persons respiratory system thereof is connected to the outside through said main channel (7, 27), - peripheral auxiliary channels (9, 29) opening into said main channel, said auxiliary channels being fed continuously with respiratory gas, and - deflecting means (8, 28), to converge toward each other, inside said main channel (7, 27), the jets respiratory gas (J) injected continuously for said auxiliary channels (9, 29), so that a pressure zone of oblong shape (Z) is born at the distal end of said auxiliary channels (9, 29) and extends distally along the longitudinal axis (LL) of said main channel characterized: - in that it comprises at least one local restriction fixed section (R2, R3) having a shape and a constant arrangement, so as to form a fixed on the gas flow (50, 51) local resistance passing through said main channel ( 7, 27), whatever their direction of flow, and - that said local constraint, which is in the form of a protruding inner ring, is longitudinally away and outside said oblong pressure zone (Z), and - that said local restriction (R2, R3) is disposed upstream, ie, the proximal side of said oblong pressure zone (Z).Dispositivo de respiración artificial utilizable para la reanimación de una persona en parada cardíaca, cuya caja torácica se somete a compresiones y descompresiones alternas con el fin de restablecer los movimientos de espiración e inspiración, comprendiendo dicho dispositivo: - un elemento tubular (5, 25) que forma un canal principal (7, 27) y que está desti
