Abstract
Ankle-Foot Orthoses (AFOs) are orthotic devices supporting movements of ankles of disables people for example hemiplegia, polio, peroneal nerve palsy, guillain-barre, etc. In our research, we developed a passive controllable AFO (Intelligent-AFO) which can control its ankle's torque by using a compact Magneto-Rheological fluid brake (MRB). The brake in which the Magneto-Rheological fluid is used as a working field has a simple structure and rapid response. In this paper, we describe an application of the I-AFO for a guillain-barre patient and the result of the experiment. In addition, we describe a newly developed AFO which has lower weight than previous.