Medical ventilator with operated pep valve

A medical ventilator (100) comprising:

• a motorized turbine (41) for supplying a gas,
• computer (40) configured for operating the turbine (41),
• a gas circuit (102) comprising an inspiratory branch (102.1) configured to carry the gas coming from the turbine (41) and an expiratory branch 102.2) in fluidic communication with the atmosphere, and
• a PEP valve (1), arranged on the expiratory branch (102.2), comprising a valve shutter (2) comprising a front face (2.1) collaborating with a valve seat (3), and a rear face (2.2) on the opposite side to the front face (2.1),
• characterized in that it further comprises:
• an electromechanical-control device (20), operated by the computer (40), configured to act on the rear face (2.2) of the valve shutter (2) to push it towards the valve seat (3), and
• a pressurizing chamber (22) in fluidic communication with a pressure-conveying line (42) supplied by the turbine (41), said pressurizing chamber (22) collaborating with the rear face (2.2) of the valve shutter (2).