The internal blower generates the air pressure necessary for breath delivery,
eliminating the need for an external source of medical-grade compressed air.
An internal oxygen regulator controls wall oxygen pressure. The ventilator
mixes air and oxygen in the inspiratory module before delivery to the patient.
Based on operator settings, the central processing unit (CPU) controls the air
valve, oxygen valve, and exhalation valve through stepper motor controller
printed circuit boards (PCBs). As flow is delivered to the patient, the air and
oxygen flow sensors and two pressure sensors provide feedback to the CPU.
The pressure relief and safety valves in the inspiratory module provide for
patient safety in the event of an over-pressure condition or any component or
system failure that could interfere with the patient’s ability to breathe when
connected to the ventilator.