Korea Advanced Institute of Science and Technology

At the Biorobotics Lab in the Mechanical Engineering Department of the Korea Advanced Institute of Science and Technology (KAIST), Professor Jung Kim and fellow researchers developed a device to help patients with Essential Tremor (ET), a neurological disorder characterized by uncontrollable tremors that hinder millions of patients worldwide from performing precise tasks such as writing, eating and getting dressed.

Kim and researchers created a wearable auxiliary device that measures, monitors and analyzes the electromyogram (EMG) signals of patient — bio-signals that are emitted from muscle cells when electrically or neurologically stimulated. The device detects any irregular EMG signal and stabilizes movements of the patient’s shaking hands through the sensor-equipped diagnostic tips.


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Professor Kim and researchers 3D printed prototypes of the skeleton and different smaller components of the auxiliary device, including gears, cogs, hinges and diagnostic tips.

Professor Kim and researchers 3D printed prototypes of the skeleton and different smaller components of the auxiliary device, including gears, cogs, hinges and diagnostic tips.

“3D printing enabled us to quickly identify design flaws overnight instead of waiting for days or weeks.”

Professor Jung Kim, Korea Advanced Institute of Science and Technology