Scientists May Have Found a Way to Inject Oxygen Into The Bloodstream Intravenously
There are many illnesses and injuries, including COVID-19, where the body struggles to get the amount of oxygen into the lungs necessary for survival. In severe cases, patients are put on a ventilator, but these machines are often scarce and can cause problems of their own, including infection and injury to the lungs.
https://www.sciencealert.com/experimental-device-could-intravenously-deliver-oxygen-to-the-bloodstream