歩行速度追従型膝継手の開発と歩行分析による性能評価(機械力学,計測,自動制御)

概要

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We have designed a new prototype knee joint, which utilizes a hydraulic cylinder in the stance phase and a microprocessor-controlled pneumatic cylinder in the swing phase. In this study, the gait performances of this knee joint were tested in 3 trans-femoral amputees, comparing with a commercially available knee joint, Otto Bock 3R60, which is at present alleged to provide a higher gait performance. An electronic metronome was used for step duration so as to make the subject with cadences of 88, 96 and 104 steps/min. Vicon 140 system was used, particularly forcusing on the motion measurements of hip and knee flexion angles as well as hip moment in a sagittal plane. As results, this knee joint showed stabler and superior in terms of gait performance rather than Otto Bock 3R60 at different cadences. The newly designed knee joint appears promising to serve as a superior prosthesis for the trans-femoral amputees.
一般社団法人日本機械学会の論文
2002-10-25