MIT researchers have engineered a device that delivers a tiny, high-pressure jet of medicine through the skin without the use of a hypodermic needle.
The jet-injection system delivers a range of doses to variable depths in a highly controlled manner.
According to MIT, the design is built around a mechanism called a Lorentz-force actuator — “a small, powerful magnet surrounded by a coil of wire that’s attached to a piston inside a drug ampoule.” When current is applied, it interacts with the magnetic field to produce a force that pushes the piston forward, ejecting the drug at very high pressure and velocity out through the ampoule’s microscopic nozzle.
