New Delhi [India], April 19 (ANI): Defence Research and Development Organisation (DRDO) has developed SpO2 (Blood Oxygen Saturation) supplemental Oxygen Delivery which can be used for moderate COVID patients for oxygen flow therapy and soldiers posted at extreme high-altitude areas.
According to a press release issued by, Ministry of Defense, SpO2 has been developed by Defence Bio-Engineering and Electro Medical Laboratory (DEBEL), Bengaluru of DRDO, the system delivers supplemental oxygen based on the SpO2 levels and prevents the person from sinking into a state of Hypoxia, which is fatal in most cases, it sets in. This automatic system can also prove to be a boon during the current COVID-19 situation.
Hypoxia is a state in which the amount of oxygen reaching the tissues is inadequate to fulfill all the energy requirements of the body. This is exactly the situation that gets replicated in a COVID patient due to the virus infection and has been a leading factor in the current crisis.
The electronic hardware of the system is designed for functioning at extreme altitudes featuring low barometric pressures, low temperatures, and humidity. The software safety checks incorporated into the system are critical in ensuring the functional reliability of the system in field conditions.
The system reads the SpO2 levels of the subject from a wrist-worn pulse oximeter module through the wireless interface and controls a proportional solenoid valve to regulate the oxygen supply to the subject. The oxygen is delivered from a lightweight portable oxygen cylinder through nasal nares.
The system is available in various sizes from one litre and one kg weight with 150 litres of oxygen supply to 10 litres and 10 kg weight with 1,500 litres of oxygen supply which can sustain for 750 minutes with a continuous flow of two liters per min (lpm).
According to the release, the system is a boon in the current pandemic as it can be used in the household for moderate Covid patients for Oxygen flow therapy with flow controlled at 2/5/7/10 lpm flow. The automatic usage has huge advantage in the household, as the oximeter would give an alarm for lower SpO2 value. It will automatically increase/decrease the O2 flow based on SpO2 setting which can be auto-adjusted at 2, 5, 7, 10 lpm flow rate. The optimal O2 flow rate conserves the O2 resources/O2 management and greatly increases endurance.
With its availability and simple to use the facility by a common person, the system shall greatly reduce the workload and exposure time of doctors and paramedics to monitor the SpO2 levels of the patient.
The automated Calibrated Variable Flow Control for Low O2 levels (User pre-set,
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