Reusable Flexible Concentric Electrodes Coated With a Conductive Graphene Ink for Electrotactile Stimulation

Electrotactile stimulation is a highly promising technique for providing sensory feedback

information for prosthetics. To this aim, disposable electrodes which are predominantly

used result in a high environmental and financial cost when used over a long period

of time. In addition, disposable electrodes are limited in their size and configurations.

This paper presents an alternative approach based on a 3D printed reusable

flexible concentric electrode coated with a conductive graphene ink. Here, we have

characterized the electrode and demonstrated its effective performance in electrotactile

stimulation and sensory feedback for robotic prosthetic hands.