Gao Fan, Rodriguez Johanan, Kapp Susan
UT Southwestern Medical Center at Dallas, Dallas, TX, USA
UT Southwestern Medical Center at Dallas, Dallas, TX, USA.
Prosthet Orthot Int. 2016 Jun;40(3):404-8. doi: 10.1177/0309364615574166. Epub 2015 Mar 27.
Harness fitting in the body-powered prosthesis remains more art than science due to a lack of consistent and quantitative evaluation. The aim of this study was to develop a mechanical, human-body-shaped apparatus to simulate body-powered upper limb prosthetic usage and evaluate its capability of quantitative examination of harness configuration.
The apparatus was built upon a torso of a wooden mannequin and integrated major mechanical joints to simulate terminal device operation. Sensors were used to register cable tension, cable excursion, and grip force simultaneously.
The apparatus allowed the scapula to move up to 127 mm laterally and the load cell can measure the cable tension up to 445 N. Our preliminary evaluation highlighted the needs and importance of investigating harness configurations in a systematic and controllable manner.
The apparatus allows objective, systematic, and quantitative evaluation of effects of realistic harness configurations and will provide insightful and working knowledge on harness fitting in upper limb amputees using body-powered prosthesis.
由于缺乏一致且定量的评估，在体动假肢中进行背带适配更多是一门艺术而非科学。本研究的目的是开发一种机械的、人体形状的装置，以模拟体动上肢假肢的使用，并评估其对背带配置进行定量检查的能力。
该装置基于一个木制人体模型的躯干构建，并集成了主要机械关节以模拟终端装置的操作。使用传感器同时记录缆线张力、缆线行程和握力。
该装置可使肩胛骨向外移动达127毫米，且称重传感器可测量高达445牛的缆线张力。我们的初步评估强调了以系统且可控的方式研究背带配置的必要性和重要性。
该装置可对实际背带配置的效果进行客观、系统和定量的评估，并将为使用体动假肢的上肢截肢者的背带适配提供有见地的实用知识。
