健常人と同等の階段降り歩行が可能な大腿義足(4部人工の手足)

概要

論文の詳細を見る
This paper deals with an attempt to develop an above-knee prosthesis which allows amputees smooth stair descending and level walking at a voluntary walking pace. First, the dynamic analysis of normal persons' level walking and stair descent/ascent were carried out to obtain general prospects for the design and the control of an A/K prosthesis. The summary of the analyses is as follows. (1) The active planter-flexion moment (more than 100Nm) must be effected at an ankle joint on a stance phase during stair-ascending. (2) The passive extension moment (max 80Nm) must be effected at a knee joint on a stance phase during stair descending. (3) A little active extension moment is necessary at an ankle joint on a swing phase for rapid walking to walk on a flat surface and also to ascend stairs. (4) A passive flexion moment must be effected at an ankle joint through a swing phase during stair descending; however a little extension moment (about 3Nm) is necessary at termination of a swing phase to sustain some extension angle. One hydraulic actuation system was then proposed on the basis of the analytical results, which allows amputees to descend stairs smoothly as well as to walk on a flat surface with no external power source. The proposed system was assembled into the A/K prosthesis WLP-7. Amputees wearing WLP-7 can walk on a flat surface at a voluntary walking pace and also can descend stairs as well as normal persons after only half an hour of training.
1986-09-25

健常人と同等の階段降り歩行が可能な大腿義足(4部人工の手足)

スポンサーリンク

概要

著者

関連論文

スポンサーリンク

健常人と同等の階段降り歩行が可能な大腿義足(4部 人工の手足)

スポンサーリンク

概要

著者

関連論文

スポンサーリンク

健常人と同等の階段降り歩行が可能な大腿義足(4部人工の手足)