相关实验视频

Updated: Jul 11, 2025

Author Spotlight: Integrating Mechanical and Biological Analysis in Tendinopathy Research

Author Spotlight: Integrating Mechanical and Biological Analysis in Tendinopathy Research

Published on: March 1, 2024

一种便携式的AFO解决方案用于带有电缆肌机制的气动执行器,以协助脚背部屈曲

Junming Wang¹, Jing Shu¹, Yujie Su¹

¹Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.

Frontiers in bioengineering and biotechnology

|November 6, 2023

概括

这项研究引入了一种便携式脚脚形,使用松电缆机制来改善气动执行器响应. 这种轻量级的设备有效地帮助脚的背部屈曲,减少了走路时的肌肉努力.

科学领域:

生物医学工程生物医学工程
康复机器人康复机器人
生物力学生物力学

背景情况:

脚脚 (AFO) 中的气动执行器受到体积庞大,重型的限制.
高压需求和气动系统的缓慢响应时间阻碍了便携性和可用性.
现有的AFOs通常缺乏足够的可移植性,无法广泛采用.

研究的目的:

开发和验证使用松电缆机制的便携式AFO概念.
为了克服与AFO中的气动执行器相关的可移植性挑战.
改进气动AFO的响应时间和控制,以帮助背部屈曲.

主要方法:

集成了一个松电缆肌机制来管理气动执行器响应.
为最佳触发时间和选择而开发了一个数学模型.
在健身参与者在跑步机上行走时,使用便携式 (VN-C1,VN-C4) 评估了系统性能.
动力学和电肌图 (EMG) 数据被收集,以评估背部屈曲辅助和肌肉活动减少.

主要成果:

拟议的系统实现了一个可携带的AFO,重量约为1.6公斤 (0.5公斤的腿部,1.1公斤的腰部).
松电缆机制消除了时间延迟,实现了有效的背部屈曲辅助.
经过测试的 (300-500g) 促进了脚的背部屈曲,在摇摆阶段将EMG活动降低了8-10%.
该设备表现出足够的力,可以在行走时抬起脚部部分.

结论:

使用松电缆机制和紧气动的便携式AFO是可行的.
该系统有效地帮助脚背部屈曲,并减少健康个体的肌肉炼.
这种轻量级的AFO显示出有很大的潜力,可以帮助下肢疲软的人走路.

关键词:

脚 - 脚的骨架.有助于机器人的机器人气动执行器的气动执行器中风康复中风康复中风康复可穿戴机器人可穿戴机器人

更多相关视频

Use of a Foot-Induced Digitally Controlled Resistance Device for Functional Magnetic Resonance Imaging Evaluation in Patients with Foot Paresis

Use of a Foot-Induced Digitally Controlled Resistance Device for Functional Magnetic Resonance Imaging Evaluation in Patients with Foot Paresis

Published on: July 7, 2023

Experimental Methods to Study Human Postural Control

Experimental Methods to Study Human Postural Control

Published on: September 11, 2019

相关概念视频

Ankle Joint

Ankle Joint

The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...

Machines: Problem Solving II

Machines: Problem Solving II

Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. Consider a lifting tong carrying a 100 kg load. It comprises movable sections DAF and CBG linked together with member AB.

Frames: Problem Solving I

Frames: Problem Solving I

Consider a jib crane with an external load suspended from the pulley. The dimensions of the crane members are shown in the figure. A systematic analysis of the frame structure is required to determine the reaction forces at the pin joints, assuming that the pulleys are frictionless.