描述模块化组件对跨关节假肢立位相机械行为的相互作用效应
Seth Donahue1, Miguel Vaca2,3, Wendy A Beattie1
1Department of Physical Medicine & Rehabilitation, Northwestern University, Chicago, Illinois, USA.
Prosthetics and orthotics international
|April 8, 2025
概括
将模块化组件添加到动态响应假脚中会改变机械行为,影响能量回报和位移. 临床医生可以利用这些见解来优化假肢调整,以提高用户的舒适性和性能.
科学领域:
- 生物力学 生物力学
- 假肢工程 假肢工程
- 材料科学 材料科学 材料科学
背景情况:
- 有限的数据存在于假肢脚和近接部件之间的机械相互作用.
- 假肢的机械性能显著影响用户体验.
研究的目的:
- 量化一个跨腿假肢系统的立场阶段机械行为.
- 研究将被动模块化组件添加到动态响应 (DR) 脚的效果.
主要方法:
- 使用材料测试机和测试装置进行机械表征.
- 测试了12个条件,将DR脚与液压脚和不同设置的减震柱 (SAP) 结合起来.
- 在模拟立场阶段测量最大位移,能量回报和翻转形状.
主要成果:
- 模块化组件独立且互动地影响了位移和能量回报.
- 液压脚和SAP通常会减少能量回报,但会改变排位.
- 翻转形状表现出非线性反应,添加了模块化组件.
结论:
- 模块化组件引入复杂的机械相互作用,影响假肢系统的响应.
- 临床医生应该了解这些累积效应,以有效调整假肢.
- 液压脚和SAPs的组合有助于平衡用户舒适性和能源回报.
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