Abstract: The invention concerns a manual artificial respiration bag (1) for ventilating a patient in need thereof, comprising a deformable bag (10) with a gas inlet (11), a gas outlet (12) and an inner volume (13) for a respiratory gas; an upstream conduct element (20) fluidly connected to the gas inlet (11) of the deformable bag (10), and comprising a gas entry port (21); and a downstream conduct element (30) fluidly connected to the gas outlet (12) of the deformable bag (10), comprising an exhaust valve (35) comprising an exhaust port (36). A venturi device (50) comprising a main body (110) comprising a venturi nozzle (120); at least one oxygen inlet (131) for providing oxygen; at least one air inlet (132) for providing air; a mixing chamber (133) for mixing therein oxygen and air and obtaining an air/oxygen mixture; and gas selection means (110, 130) for selecting oxygen or an air/oxygen mixture as a desired gas to be provided to the venturi nozzle (120).

Abstract: The invention concerns a Venturi device (1) for delivering oxygen or an air/oxygen mixture comprising a main body (10) with an inner compartment (11) and a Venturi nozzle (20); a rear member (30) with an oxygen inlet (31), air inlets (32) and a mixing chamber (33) for mixing oxygen and air. The rear member (30) is mobile with respect to the main body (10) between a closed position wherein the rear member (30) provides oxygen to the Venturi nozzle (20), and an open position wherein the rear member (30) provides an air/oxygen mixture to the Venturi nozzle (20). The rear member (30) is mobile at least in rotation with respect to the main body (10) for allowing a user to manually select a desired open or closed position, preferably according to a helicoidal motion. Installation (100) for providing oxygen or an air/oxygen mixture to a patient comprising a gas reservoir (101), a flexible hose (103), a respiratory interface (104), a connecting hollow body (102), and such a Venturi device (1).

Abstract: Described is a manual artificial respiration bag (1) having a deformable bag (2) with a gas inlet (4), a gas outlet (3) and an inner volume (5); a downstream conduct element (100) fluidly connected to the gas outlet (3) and comprising an exhaust valve (110) with an exhaust port (111); a downstream one-way valve (50, 55) arranged into the downstream conduct element (100) that is configured for allowing a flow of respiratory gas to pass through said downstream one-way valve (50, 55) only toward the exhaust valve (110). The manual artificial respiration bag (1) further has a mobile port-closure (124), actuatable by a user, cooperating with the exhaust port (111) of the exhaust valve (110) for at least partially closing said exhaust port (111) thereby controlling the flow of respiratory gas passing through the exhaust port (111) of the exhaust valve (110).