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05/28/2012

Needle-free drug delivery

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    Doctor visits may soon get a bit less scary with a new needle-free injector able to deliver precise doses of medicine with different levels of force.
    The injector will use a Lorentz-force actuator to deliver a high-pressure jet of medicine through the skin without the need for a needle. The actuator will work through a powerful magnet surrounded by a coil of wire attached to a piston inside the drug ampoule. An applied current will interact with the magnetic field to push the piston forward, which will eject the drug at an extremely high pressure and velocity.
    Because the injector can be programmed to deliver doses at different levels, it can be adjusted for various skin types, such as the thin skin of a baby or the thicker skin of an adult.
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Dr. Gibbson
 
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