MIT's New Jet Injection
MIT engineers have developed a jet injection that can administer drugs into blood without needing a needle. The device comprises of a magnet surrounded by coils that carry current. When the current flows through the coil, the magnet pushes a piston that drives the drug out through a nozzle as wide as mosquitoâs proboscis. The drug can be administered in various quantities and to various depths using this device.

Via: #-Link-Snipped-#