This sort of device has actually been in use for a number of decades. There are associated downsides like biological transfer and the infiltration of skin cells

This sort of device has actually been in use for a number of decades. There are associated downsides like biological transfer and the infiltration of skin cells. I'm afraid you'll have to suck it up for a while yet. edit: A citation: http://en.wikipedia.org/wiki/Jet_injector http://en.wikipedia.org/wiki/Jet_injector