A reliable, portable and low-cost ventilator named "DEVEN" is designed and developed by scientists of Dr APJ Abdul Kalam Missile Complex, RCI, DRDO-Hyderabad This Ventilator is named as DEVEN-DRDO's Economical Ventilator DEVEN has features comparable to high-end ventilators and would serve the requirements of a large number of ventilators under the present COVID-19 pandemic situation Also, DEVEN being a portable ventilator can be used in field application using a portable air compressor and reservoir Hence, it can be used in an ambulance, any mobile vehicle or for application in any remote/rural area DEVEN has a micro-controller-operated solenoid valve-based design and is developed by tweaking existing technology being used for hot gas reaction control systems (HRCS), employed in attitude control of exo-atmospheric missiles HRCS is achieved by actuating solenoid valves through a micro-controller to control the flow of oxidizer as well as fuel Existing controllers being used for control of electro-mechanical actuators are tweaked for control of the above-mentioned solenoid valves for inspiratory as well as expiratory lines of DEVEN Graphic abstract Keywords Portable ventilator · Solenoid valves · Controller · Pressure regulators Technology Developed a low-cost portable ventilator with precise measurement and control/adjustment of important patient parameters such as inspiratory pressure, respiration (breathe) rate, inhaling-exhaling (I:E) ratio, tidal volume, and percentage oxygen (FiO 2)
DRDO’s Portable Low-Cost Ventilator: “DEVEN”