Implanted electrodes + algorithm allow thought-driven 4 limb exoskeleton control

Alim Louis Benabid and Clinatec/University of Grenoble colleagues have developed a brain computer interface controlled exoskeleton that enabled a tetraplegic man to walk and move his arms.  Two 64 electrode brain implants drove the system.

Benabid explained the benefits, stating that “previous brain-computer studies have used more invasive recording devices implanted beneath the outermost membrane of the brain, where they eventually stop working. They have also been connected to wires, limited to creating movement in just one limb, or have focused on restoring movement to patients’ own muscles.”

The exoskeleton can only be used in the lab at this point, as it still must be connected to a ceiling-harness, since it is unable to make small adjustments necessary to prevent falls.

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