Yet another Star Trek device becomes reality! WOW!

Since we have the "hypo spray" now, at this rate, what are we going to have in the 22nd century? A vaccine teleporter?

Like in Star Trek? Oh, I see another FrankR beat me to it. Awsome though.

I have developped a same electromagnetic needle-free injector 10 years ago for injection of BOTOX. http://www.youtube.com/watch?v=pElsTUvuYrQ

This is nothing new. The jet injector as a medical device has been around since 1960: http://en.wikipedia.org/wiki/Jet_injector

There have been needless injectors in use for decades. When I went to boot camp in the late 1980's they had air powered injectors in use. They just weren't small.

Having received injections from both airguns and needles I can say with certainty that I prefer needles.

What about problems with injecting drugs outside of veins etc..
Blasting drugs into someones system would also blast in bacteria,etc from the skin. If it goes in tissue instead of vein what about anaerobic bacteria infections?

I have seen similar needle-less devices for giving smallpox booster shots which were otherwise given by a scalpel scratching the skin.

warhead said it, i watched my friend with diabetes use one in the 90s when i was a mere child.