The invention discloses an automatic
respirator. The automatic
respirator comprises an
air pump, an expandable air bag, a
mask and a control module; an air inlet of the
air pump is connected with an air source or an
oxygen source at the same time, an air outlet of the
air pump is connected to the expandable air bag, and the expandable air bag is connected to the
mask through a respiratory tube and is made of an elastic thin-
wall material; a
pressure control valve is connected between the expandable air bag and the
mask, a valve is arranged between the expandable air bag and the air pump, and the
pressure control valve is connected to the
signal input end of the control module and connected to the valve through the
signal output end of the control module. By means of electric operation, the automatic ventilation function is provided, after pressure of the expandable air bag reaches a certain value, the
pressure control valve can be triggered to be switched on, and air in the air bag input air to the pressure control valve to achieve the automatic ventilation function of the air bag. Enough
tidal volume and needed
respiratory rate can be ensured,
respiration parameters are made to be precise, the
tidal volume and needed
respiratory rate can be adjusted, and inconvenient operation during human assistance respiratory is avoided.