将功能性电刺激(FES)诱发手部运动与机械矫形器相结合,使四肢瘫痪者被动保持手腕和手指位置:可行性测试

IF 3.4 Q2 ENGINEERING, BIOMEDICAL IEEE transactions on medical robotics and bionics Pub Date : 2024-07-01 DOI:10.1109/TMRB.2024.3421667
Clément Trotobas;Fernanda M. Rodrigues Martins Ferreira;João Paulo Fernandes Bonfim;Maria Rosália de Faria Moraes;Adriana Maria Valladão Novais Van Pette;Henrique Resende Martins;Charles Fattal;Christine Azevedo Coste
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摘要

我们开发了一种新方法,将功能性电刺激(FES)和电动矫形器结合起来,用于辅助前伸:ORTHYB。其目的是通过使用表面功能性电刺激激活肌肉,并使用电动马达将关节锁定在所需位置,从而诱导手指、拇指和腕关节的运动,以减轻肌肉疲劳并延长抓握物体的时间。另一个假设是,机械矫形器将通过限制关节定位和引导运动来提高抓握质量。这种混合矫形器的功能性和可接受性在五名因脊髓损伤而上肢瘫痪的参与者身上进行了测试。评估方法包括:对 3 种不同物体进行 30 秒钟的抓握质量监测;使用博格 RPE(感知用力评分)量表进行感知用力评估;使用视觉模拟量表(VAS)进行疼痛评估;使用 QUEST(魁北克用户对辅助技术满意度评估)量表和 SUS(系统可用性量表)进行可接受性评估。初步结果表明,混合矫形器与单独的 FES 相比具有附加值。在大多数试验中,在功能方面获得的分数高于或等于单独使用 FES 所获得的分数。抓握物体的时间为 30 秒,肌肉疲劳不会影响抓握质量。
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Combining Functional Electrical Stimulation (FES) to Elicit Hand Movements and a Mechanical Orthosis to Passively Maintain Wrist and Fingers Position in Individuals With Tetraplegia: A Feasibility Test
We have developed a new approach to assist prehension by combining functional electrical stimulation (FES) and a motorized orthosis: ORTHYB. The aim was to induce movements of fingers, thumb, and wrist joints by activating muscles using surface FES and locking joints in desired positions using electric motors, to reduce muscle fatigue and enable prolonged grasping of objects. Another hypothesis was that the mechanical orthosis would improve grip quality by constraining joint positioning and guiding movements. The functionality and acceptability of this hybrid orthosis were tested on five participants with upper-limb paralysis due to spinal cord injury. The evaluation was carried out by monitoring the quality of grip for 30 seconds on 3 different objects; perceived effort using the Borg RPE (Rating of Perceived Exertion) scale; pain using visual analog scale (VAS); acceptability using QUEST (Quebec User Evaluation of Satisfaction Technology with Assistive Technology) scale and SUS (System Usability Scale). Preliminary results indicate that the hybrid orthosis provides added value compared to FES alone. The scores obtained in terms of functionality were in most of the trials greater than or equal to those obtained with FES alone. Object grasping was possible for 30 seconds without muscular fatigue affecting grip quality.
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Table of Contents IEEE Transactions on Medical Robotics and Bionics Society Information Guest Editorial Special section on the Hamlyn Symposium 2023—Immersive Tech: The Future of Medicine IEEE Transactions on Medical Robotics and Bionics Publication Information IEEE Transactions on Medical Robotics and Bionics Information for Authors
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