Fear no more! In the future, doctors might stop piercing our skin to inject medicine into the blood. For some people, it’s not a big deal. But there are some who are extra sensitive. They’ll feel the pain… But in the future, the needle might get obsolete!
Researches have now experimenting on a new laser system which can turn the medicine into tiny vapor bubbles and inject them to our blood without any pain!
The laser is combined with a small adaptor that contains the drug to be delivered, in liquid form, plus a chamber containing water that acts as a “driving” fluid. A flexible membrane separates these two liquids. Each laser pulse, which lasts just 250 millionths of a second, generates a vapor bubble inside the driving fluid. The pressure of that bubble puts elastic strain on the membrane, causing the drug to be forcefully ejected from a miniature nozzle in a narrow jet a mere 150 millionths of a meter (micrometers) in diameter, just a little larger than the width of a human hair.
Already feeling better? They have already tested this method on lab animals and it have worked. So, humans might get it in the near future. Until then, we have to face that sharp edge. A normal injection is bearable but a saline needle!!! People will love to have it replaced by this laser!
- Source : TechCrunch