Abstract
This paper proposes a presentation interface of hip joint angle for paraplegic patient using a small electrode array. Current powered exoskeletons help the patient's walk on the basis of biopotential signal. However, the exoskeletons have two problems. First, patient's intentions related to a walk are not synchronized with the assistive leg motions completely. Second, paraplegic patients with the exoskeleton cannot perceive legs' information such as joint angles and floor contact because the patients have lost afferent signal flows. We proposed a finger-mounted walk controller for the first problem before. However, the controller is not based on human nerve system. In addition, we proposed feedback device for conveying hip joints angle by electric stimulation for the second problem before. However, the patients have to cover their all fingers with electrodes for using the device. To control legs on the basis of human nerve system and to miniaturize presentation parts, we propose a presentation interface of hip joint angle for paraplegic patient using a small electrode array.
