一个生物忠实假肢残余肢体用于假肢插座测试
C Phillips1, A Nagpal2, F Azhari1
1Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada.
Canadian prosthetics & orthotics journal
|November 17, 2025
概括
研究人员开发了一种新的,可调节的假肢假肢,用于测试插座的适合性. 这种生物忠实设备准确地模拟了残余四肢体积变化,改善了假肢设计并减少了临床试验的依赖性.
科学领域:
- 生物医学工程 生物医学工程
- 假肢和整形手术
- 康复工程 康复工程 康复工程
背景情况:
- 精确模拟残余肢体和假肢口之间的负载转移对于评估适应性和功能至关重要.
- 现有的静态模拟肢体限制了可调节插座技术的评估.
- 开发假肢通常需要资源密集的临床试验.
研究的目的:
- 设计和验证一种生物忠实假肢,能够实时进行可控体积调整 (±5%的肢体体积).
- 创建一个具有成本效益和可定制的工具,用于假肢研究.
主要方法:
- 嵌入式充满水的膀在一个双度米尿跨的残余肢体模型.
- 使用Arduino控制的注射器系统来执行音量调节.
- 通过可重复性测试验验证,量化体积变化期间的界面压力.
主要成果:
- 使用易于获得的材料制造的肢体价格低于400加元.
- 体积变化速率对界面压力影响最小;观察到最小的歇斯底里.
- 证明了高可重复性,正常化压力变化低于10.4%.
结论:
- 经过验证的生物忠实假肢有效地模仿跨余肢体体积变化.
- 设计允许轻松复制和定制各种肢体生理学.
- 允许对可调节的假肢设备进行可控的长椅测试,加速临床使用.
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