The SoftHand Pro: Functional evaluation of a novel, flexible, and robust myoelectric prosthesis.
The SoftHand Pro: Functional evaluation of a novel, flexible, and robust myoelectric prosthesis.
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DOI：
10.1371/journal.pone.0205653
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发表时间：
2018
期刊：
影响因子：
3.7
通讯作者：
Andrews K
中科院分区：
文献类型：
--
作者：
Godfrey SB;Zhao KD;Theuer A;Catalano MG;Bianchi M;Breighner R;Bhaskaran D;Lennon R;Grioli G;Santello M;Bicchi A;Andrews K
大约四分之一的主动上肢假肢技术被用户拒绝，用户调查已经确定了需要改进的关键领域：功能，舒适度，成本，耐用性和外观。在这里，我们提出了第一个系统的，临床评估的一种新的假肢手，软手临（SHP），在参与者与经桡动脉截肢和年龄匹配，肢体完整的参与者。SHP是一个强大的和功能性的假手，最大限度地减少成本和重量使用欠驱动设计与一个单一的电机。肢体缺失的参与者在使用SHP以及他们自己的假肢进行6-8小时训练之前和之后进行功能临床测量评估;肢体完整的参与者仅在SHP训练之前和之后进行测试。肢体缺失的参与者还使用主观问卷评估了他们自己的假肢和SHP（培训后）。客观和主观结果都是积极的，并阐明了SHP的优点和缺点。特别是，训练前的结果显示SHP易于使用，并且在6-8小时的训练后，两组上肢截肢者的活动测量的显著改善突出了学习SHP的独特特征的容易性（对于肢体丧失和肢体完整组，中值改善分别为：4.71和3.26，p = 0.009和0.036）。此外，我们发现，在几个临床指标中，与参与者自己的商业器械相比，性能没有差异，并发现在两个功能性任务（扣衬衫和使用手机）上的性能超过了这些器械，这表明了功能性假体设计。最后，鉴于小对象操作的不良结果，需要改进SHP设计和/或训练。总之，这些结果显示了SHP的前景，一个灵活和自适应的假肢手，并铺平了道路，以确保未来更高的功能。
Roughly one quarter of active upper limb prosthetic technology is rejected by the user, and user surveys have identified key areas requiring improvement: function, comfort, cost, durability, and appearance. Here we present the first systematic, clinical assessment of a novel prosthetic hand, the SoftHand Pro (SHP), in participants with transradial amputation and age-matched, limb-intact participants. The SHP is a robust and functional prosthetic hand that minimizes cost and weight using an underactuated design with a single motor. Participants with limb loss were evaluated on functional clinical measures before and after a 6–8 hour training period with the SHP as well as with their own prosthesis; limb-intact participants were tested only before and after SHP training. Participants with limb loss also evaluated their own prosthesis and the SHP (following training) using subjective questionnaires. Both objective and subjective results were positive and illuminated the strengths and weaknesses of the SHP. In particular, results pre-training show the SHP is easy to use, and significant improvement in the Activities Measure for Upper Limb Amputees in both groups following a 6–8 hour training highlights the ease of learning the unique features of the SHP (median improvement: 4.71 and 3.26 and p = 0.009 and 0.036 for limb loss and limb-intact groups, respectively). Further, we found no difference in performance compared to participant’s own commercial devices in several clinical measures and found performance surpassing these devices on two functional tasks, buttoning a shirt and using a cell phone, suggesting a functional prosthetic design. Finally, improvements are needed in the SHP design and/or training in light of poor results in small object manipulation. Taken together, these results show the promise of the SHP, a flexible and adaptive prosthetic hand, and pave a path forward to ensuring higher functionality in future.
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