Wearable tDCS Device for Sleep-Mode Movement Disorder Therapy

The patent introduces transcranial direct current stimulation (tDCS) as an intermediary treatment modality between noninvasive medication and invasive deep brain stimulation. The tDCS device applies electrical current through scalp electrodes to modulate cortical excitability and indirectly influence basal ganglia circuits, achieving therapeutic effects without surgical implantation. This intermediary approach maintains symptom relief effectiveness while eliminating the invasiveness of DBS.

The patent employs parameter changes by applying controlled electrical current parameters (intensity, duration, frequency) through tDCS to modulate neuronal excitability. By changing the electrical parameters delivered to the brain, the treatment achieves sustained therapeutic effects without the diminishing returns seen in medication. The system can adjust current intensity and pulse duration to optimize efficacy while minimizing side effects.

The patent implements periodic action by delivering tDCS therapy during nighttime sleep periods rather than during waking hours. The system activates the stimulator when the user is asleep, providing therapeutic current during rest periods when cortical plasticity is enhanced. This periodic timing maintains therapy effectiveness while eliminating disruption to daily activities, as the treatment occurs during naturally occurring sleep cycles.

The patent implements self-service through automated safety monitoring and adaptive current delivery. The device automatically monitors impedance, detects electrode placement accuracy, adjusts current parameters based on individual physiological responses, and shuts down if safety thresholds are exceeded. This self-monitoring and self-adjusting capability enables safe home use without requiring complex manual safety protocols or professional supervision, thereby maintaining convenience while ensuring safety.