Tongue-Controlled Wheelchair System

Nov-27-13 Researchers have refined a system that allows people with tetraplegia (paralysis of all four limbs) to control their wheelchair with their tongue.

The system, called Tongue Drive System (TDS), consists of a headset that holds sensors just outside the cheeks and a barbell-shaped, magnetic tongue piercing. The headset’s sensors detected the changes in the magnetic field caused by the tongue changing position in the mouth, then relayed the information to an iPod that sent the commands to the paired, powered wheelchair.

The system debuted last year, but now has been streamlined with the elimination of the then-required dental retainer.

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