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A Modular Adjustable Transhumeral Prosthetic Socket for Evaluating Myoelectric Control
IEEE Journal of Translational Engineering in Health and Medicine ( IF 3.4 ) Pub Date : 2020-01-01 , DOI: 10.1109/jtehm.2020.3006416
Ben W Hallworth 1 , James A Austin 1 , Heather E Williams 1 , Mayank Rehani 2 , Ahmed W Shehata 2 , Jacqueline S Hebert 2, 3
Affiliation  

Novel myoelectric control strategies may yield more robust, capable prostheses which improve quality of life for those affected by upper-limb loss; however, the development and translation of such strategies from an experimental setting towards daily use by persons with limb loss is a slow and costly process. Since prosthesis functionality is highly dependent on the physical interface between the user’s prosthetic socket and residual limb, assessment of such controllers under realistic (noisy) environmental conditions, integrated into prosthetic sockets, and with participants with amputation is essential for obtaining representative results. Unfortunately, this step is particularly difficult as participant- and control strategy-specific prosthetic sockets must be custom-designed and manufactured. There is thus a need for a system to reduce these burdens and facilitate this crucial phase of the development pipeline. This study aims to address this gap through the design and assessment of an inexpensive and easy-to-use 3D-printed Modular-Adjustable transhumeral Prosthetic Socket (MAPS). This 3D-printed, open-source socket was developed in consultation with prosthetists and compared with a participant-specific suction socket in a single-participant case-study. We conducted mechanical and functional assessments to ensure that the developed socket enabled similar performance compared to participant-specific sockets. Both socket systems yielded similar results in mechanical and functional assessments, as well as in self-reported user feedback. The MAPS system shows promise as a research tool which catalyzes the development and deployment of novel myoelectric control strategies by better-enabling comprehensive assessment involving participants with amputations.

中文翻译:

用于评估肌电控制的模块化可调节经肱骨假体插座

新的肌电控制策略可能会产生更坚固、更有能力的假肢,从而改善受上肢丧失影响的人的生活质量;然而,将此类策略从实验环境发展为肢体丧失患者日常使用的过程是一个缓慢且成本高昂的过程。由于假肢功能高度依赖于用户的假肢插座和残肢之间的物理接口,因此在真实(嘈杂)环境条件下对此类控制器进行评估,集成到假肢插座中,并与截肢参与者进行评估,以获得具有代表性的结果。不幸的是,这一步特别困难,因为必须定制设计和制造特定于参与者和控制策略的假肢插座。因此,需要一个系统来减少这些负担并促进开发管道的这个关键阶段。本研究旨在通过设计和评估廉价且易于使用的 3D 打印模块化可调节经肱骨假体插座 (MAPS) 来弥补这一差距。这种 3D 打印的开源插座是在与假肢师协商后开发的,并在单一参与者案例研究中与参与者特定的吸力插座进行了比较。我们进行了机械和功能评估,以确保开发的插座与参与者特定的插座相比具有相似的性能。两种插座系统在机械和功能评估以及自我报告的用户反馈中产生了相似的结果。
更新日期:2020-01-01
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