Courtesy of Ann & Robert H. Lurie Children’s Hospital of Chicago

A responsive neurostimulation device (left) records seizures and stimulates the brain like a cardiac defibrillator. The system includes a cranial impulse generator with two ports for cortical strip or depth electrodes, a patient remote monitor and a magnet. Deep brain stimulation (right) tonically stimulates the brain like a cardiac pacemaker. The system includes a pair of depth electrodes to subcortical targets, connected by extension wires to a pectoral impulse generator.