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Wheel Chair That Needs Your Tongue To Operate
The duo has come out with an invention that makes it possible for a person control a wheelchair or computer using the tongue. And now, there is even a bigger achievement. The invention, called 'tongue drive', which is been presently in its beta phase, experimented at Georgia Tech University, Atlanta, could also give astronauts a third hand in difficult situations like spacewalks.
So, how does this, one of its kind, invention works? Well, the procedure involved may not look like a rocket science, but the device works by using two sensors to track a 5-millimetre-wide magnet attached to the tip of the user's tongue. The magnet used has to be attached to a person's tongue using surgical adhesive.
Once the magnet gets installed, things start working.
Scientists have developed a novel headset that makes it possible for a person suffering from spinal cord injury to precisely control a wheelchair or computer using the tongue. The sensors 'implanted in a wireless headset' accept fluctuations in the strength of the magnetic field as the tongue moves, and transmit the signals on to a computer, where they are interpreted and acted upon.
By moving the tongue in predefined patterns, the user can steer a cursor on a screen, direct a wheelchair, and can even on switch on a TV. But according to the inventor, Ghovanloo, user can give a various kinds of command. "Some don't like their sip and puff because it sits right in front of their face, and is like a signal of their disability," New Scientist magazine quoted Ghovanloo, as saying. He retorts: "Our design can be made less conspicuous."
The researchers say that they are in talks with a dental expert about installing them into a plastic retainer that fits inside the user's teeth. Before this, the conventional methods include 'sip and puff' devices, which are operated by blowing or sucking on a straw held in front of the mouth.
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