Abstract
The forearm casterwalker, a kind of walking aid, is usually exploited for life support and walking rehabilitation in the hospital or nursing home or other place. It is stand on the wheels and casters. Therefore the falling accident caused by the movement in the direction not anticipated often happens. The falling accident is very serious problem for the person of advanced years. To solve this problem, we developed the new forearm casterwalker, named "I-Walker". I-Walker is applied the passive system and has the line-trace and fall-prevention function. It is composed of the marketed forearm casterwalker and web camera and two magneto-rheological fluid brakes.
