Electronic Ventilator for COVID19 Patient Treatment

Abstract

In response to expected shortages of ventilators caused by COVID19 pandemic, globally many organizations and institutes have developed low cost and high rate production ventilators. Many of these ventilators are mechanical type and pneumatic type which are easy to produce but do not have all the necessary control parameters and their options as per the patient requirements. Furthermore they are the failure rate is very high as and computer interfacing and control is difficult. To address all the drawbacks of the available ventilator, power electronic motor drive based digitally controlled ventilator is designed, developed and tested in the Qatar university laboratory. It consists of semiconductor switches based inverter driven by the microcontroller to run the BLDC (Brushless Direct Current) motor. All the parameters such as pressure, rate of flow and volume required is successfully tuned and trained to the microcontroller. As per the patient requirement, it can deliver the required amount of the oxygen into the patient's body and similarly removes the exhaling air from inside. As all the control process is happening by the microcontroller all the safety, sound and valves can be easily integrated to reduce the risk for the patient. Minimal number of access control buttons are provided to use the developed ventilator so that it can be easily used by all kinds of hospital nurses