Researchers have developed a robotic device for people suffering from epilepsy that would enter through the cheek bone thereby avoiding having to drill through the skull besides being much closer to the target area. The device has is a 1.14 mm nickel-titanium needle that operates like a mechanical pencil with concentric tubes some of which are curved that allow the tip to follow a curved path into the brain. Unlike many common metals nickel-titanium is compatible with MRIs (magnetic resonance imaging). 'Using compressed air a robotic platform steers and advances the needle segments a millimeter at a time' said David