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Grip force measurement of soft- Actuated finger exoskeleton

机译:软动手指外骨骼的握力测量

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摘要

Over recent years, the reseach in the field of soft actuation has been extensively increased for achieving more complex motion path with smooth, high flexible movement and high generated force at minimum operating pressure. This paper presents the study on gripping force capability of soft actuators applied on glove-type finger exoskeleton, developed in motivation to assist individuals having weak finger gripping ability in their rehabilitation exercise towards hand function restoration. The exoskeleton utilizes five cylindrical shaped pneumatic bending actuators developed in the lab, which use fiber reinforcement as a cause of bending motion that drive finger’s flexion movement. Four right-handed healthy volunteers simulated paralysis participated in the study. At 200kPa safe operating pressure, the soft exoskeleton worn by the subjects demonstrates the ability to provide adequate grip force. The grip force generated from exoskeleton worn on passive right hand is 4.66 ± 0.2 N and 3.61± 0.2 N from passive left hand, both higher than the minimum grip forces measured to hold the Hand Dynamometer of 240 g. It shows good potential to be used as a finger rehabilitation assist device.
机译:近年来,在软致动领域中的研究已经大大增加,以在最小的工作压力下实现平稳,高柔韧性的运动和高产生力来获得更复杂的运动路径。本文介绍了应用于手指式手套外骨骼的软促动器的抓力能力的研究,其目的是协助弱手指抓握能力的人进行康复锻炼以恢复手功能。外骨骼采用了实验室开发的五个圆柱形气动弯曲执行器,它们使用纤维增强材料作为弯曲运动的根源,从而驱动手指的屈曲运动。四名右撇子健康志愿者模拟瘫痪参加了这项研究。在200kPa的安全工作压力下,受试者穿戴的柔软外骨骼表现出提供足够握力的能力。被动式右手佩戴的外骨骼产生的抓地力为4.66±0.2 N,被动式左手产生的抓握力为3.61±0.2 N,均高于为保持240 g手持测功机而测得的最小抓地力。它显示出用作手指康复辅助装置的良好潜力。

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