Multi-channel EMG recording and muscle stimulation electrodes for diagnosis and treatment of tremor

This paper describes a new kind of multi-channel electrode for selectively interfacing the muscular system. Application of the system is similar to conventional intramuscular wire electrodes. A flexible polyimide thin-film structure is attached to a cannula which can be inserted into the muscle. The cannula can then be removed, so that only the polyimide electrode remains inside the muscle. Based on this concept, a 16-channel recording electrode as well as a 3-channel stimulation electrode were developed and tested in human volunteers. Fields of application for the system include the diagnosis and treatment of tremor patients by means of a neuroprosthetic platform.