Scientists May Have Found a Way to Inject Oxygen Into The Bloodstream Intravenously

[Warpy]

Scientists may have now found a breakthrough, and it's one that that could significantly impact how ventilators are used.
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The new technique works by channeling an oxygen-laden liquid through a series of nozzles that get smaller and smaller. By the time the process is finished, the bubbles are smaller than red blood cells – and that means they can be directly injected into the bloodstream without blocking blood vessels.

A lipid membrane is used to coat the bubbles before they're added to the blood, which prevents toxicity and stops the bubbles from clumping together. After the solution is injected, the membrane dissolves and the oxygen is released.

https://www.sciencealert.com/experimental-device-could-intravenously-deliver-oxygen-to-the-bloodstream

Now all they have to do is figure out how to eliminate the CO2.