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了解悬挂系统对下肢假肢旋转的影响

Xing Lim¹, Angus B Clark, Anthony M J Bull

¹Department of Bioengineering, Imperial College London, London, UK.

Prosthetics and orthotics international

|March 13, 2026

概括

与Pin-Lock和吸入系统相比,HOLO假肢悬架系统提供了优越的旋转控制. 这一发现对于改善截肢者的舒适性,步态和假肢插座稳定性至关重要.

科学领域:

生物机械工程生物机械工程
假肢和整形手术
康复科学康复科学康复科学

背景情况:

肢体在假肢套中的旋转会影响截肢者的舒适度,步态和稳定性.
有限的经验数据存在于各种假体悬挂系统提供的旋转控制.
本研究通过比较旋转阻力来解决假肢设计中的一个关键差距.

研究的目的:

系统地比较三个假肢悬挂系统的旋转阻力:Pin-Lock,吸气和Hook-and-Loop (HOLO).
在不同的轴承负荷和旋转方向 (中间和侧面) 下评估系统性能.
为选择假肢悬浮系统提供经验证据.

主要方法:

使用定制模拟肢体和相同的3D打印插座进行受控测试.
使用材料测试机来测量旋转阻力.
在恒定扭矩下测量角位移高达8.5Nm,轴负为0,40和80公斤.

主要成果:

与Pin-Lock (13.34°) 和Suction (14.42°) 系统相比,HOLO系统的旋转率显著降低 (在80公斤时为9.67°),而Pin-Lock (13.34°) 和Suction (14.42°) 系统则显著降低 (p <0.01).
中间旋转小于Pin-Lock和HOLO的横向旋转,但对吸入来说更大 (p < 0.01).
增加的轴负荷只在Pin-Lock系统中降低了旋转.

结论:

这是第一个使用代表性模拟肢体量化假肢悬浮系统有效性的研究.
在测试的悬架系统中,旋转控制存在显著差异.
假肢悬浮的选择应考虑个体用户的活动水平和轮换需求.

关键词:

下肢的下肢是什么意思假肢的使用方法旋转旋转旋转旋转旋转悬架悬架悬架悬架悬架悬架悬架悬架

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