Note:This is a joint research with the section of systems neuroscience in the same research institute of the rehabilitation center.

Purpose

We are developing conductive solid gel for electroencephalogram electrodes for use in BMI (Brain Machine Interface System) which is regarded as promising as a communication means for ALS patients and others. Conventional electrodes used a sticky conductive paste, so it took time and effort to install and remove. The goal of this project is to develop rather a hard type gel materials that are easier to handle.

Achievement so far

We developed a gel that has viscoelasticity that is easy to handle and that has good conductivity, water retention, and long-term storage stability by devising material composition. Furthermore, after collaborative research including cooperative researchers' clinical evaluation test and searching for cooperating enterprises, it has been commercialized as a general medical device from a cooperating company, and it is sold at home and abroad.

Original paper

S. Toyama, K. Takano, K. Kansaku, A non-adhesive solid-gel electrode for a non-invasive brain-machine interface, Frontiers in Neurology, 3, Article 114 (2012).