IEEE Trans Neural Syst Rehabil Eng. 2022;30:2437-2445. doi: 10.1109/TNSRE.2022.3200308. Epub 2022 Sep 1.
This article evaluates and compares the performance and perception of prosthetic devices based on different design principles, a traditional rigid gripper and an adaptable poly-articulated hand, in a pre- and post-training protocol with an individual with bilateral amputation. As a representative of the first class, we use commercial hands (Ottobock's MyoHand VariPlus Speed), which is a widely adopted model by prosthesis users worldwide. We compare these with two SoftHand Pro hands, which are experimental prototypes exhibiting 19 articulations actuated by one single motor, and are inspired by human hand motor control models. Results show that the individual with bilateral amputation, who was a non-expert myoelectric user, achieved better performance with adaptive poly-articulated hands. Furthermore, the acceptation, satisfaction and perceived functionality of the user were considerably higher for the SoftHand Pro. An observational analysis of the patient's behaviour by experienced therapists suggests that adaptable poly-articulated hands reduced compensatory movements and cognitive load. Using soft technologies may be especially advantageous for individuals with bilateral amputation, who present a very limited residual mobility and can largely benefit from the active use of their artificial arms in everyday life.
本文评估和比较了基于不同设计原理的假肢设备的性能和感知，包括传统的刚性夹持器和适应性多关节手，在个体双侧截肢前后的训练协议中进行了比较。作为第一类的代表，我们使用了商业手（奥托博克的 MyoHand VariPlus Speed），这是一种被全球假肢使用者广泛采用的模型。我们将这些与两个 SoftHand Pro 手进行了比较，这是两种实验原型，具有 19 个关节，由单个电机驱动，灵感来自于人类手部运动控制模型。结果表明，作为非专业肌电使用者的双侧截肢个体，在使用适应性多关节手时表现出更好的性能。此外，用户对 SoftHand Pro 的接受度、满意度和感知功能都有了显著提高。经验丰富的治疗师对患者行为的观察分析表明，适应性多关节手减少了代偿性运动和认知负担。使用软技术对于双侧截肢的个体可能特别有利，因为他们的剩余活动能力非常有限，可以从日常生活中积极使用人工手臂中获益匪浅。
