A multi-purpose device mechanism for sensing and control of changes in brain state includes a shaft portion and extendible elements structured for insertion into target tissue of the brain of a subject patient, cooling means configured to operatively apply cooling therapy to the target tissue, stimulation...http://www.google.com.au/patents/US7204833?utm_source=gb-gplus-sharePatent US7204833 - Multi-modal system for detection and control of changes in brain state
