IEEE Trans Biomed Eng. 2021 Jun;68(6):2011-2020. doi: 10.1109/TBME.2021.3052065. Epub 2021 May 21.
This study aims at investigating the functional performance of a novel prosthesis control scheme integrating an inductive tongue interface and myoelectric control. The tongue interface allowed direct selection of the desired grasp while myoelectric signals were used to open and close the robotic hand.
The novel method was compared to a conventional sequential on/off myoelectric control scheme using functional tasks defined by Assistive Hand Assessment protocol. Ten able-bodied participants were fitted with the SmartHand on their left forearm. They used both the conventional myoelectric control and the Tongue and Myoelectric Hybrid interface (TMH) to accomplish two activities of daily living (i.e., preparing a sandwich and gift wrapping). Sessions were video recorded and the outcome measure was the completion time for the subtasks as well as the full tasks.
The sandwich task was completed significantly faster, with 19% decrease in the completion time, using the TMH when compared to the conventional sequential on/off myoelectric control scheme (p < 0.05).
The results indicate that the TMH control scheme facilitates the active use of the prosthetic device by simplifying grasp selection, leading thereby to faster completion of challenging and relevant tasks involving bimanual activities.
本研究旨在探究一种新型假体控制方案的功能性能，该方案整合了感应式舌头接口和肌电控制。舌头接口允许直接选择所需的抓握，而肌电信号则用于打开和关闭机器人手。
使用辅助手评估协议定义的功能任务，将新方法与传统的顺序开/关肌电控制方案进行比较。十位健全的参与者在他们的左前臂上配备了 SmartHand。他们使用传统的肌电控制和舌头与肌电混合接口 (TMH) 来完成两项日常生活活动（即准备三明治和礼品包装）。会话被录像记录，结果测量是子任务和完整任务的完成时间。
与传统的顺序开/关肌电控制方案相比，使用 TMH 完成三明治任务的完成时间显著缩短，缩短了 19%（p < 0.05）。
结果表明，TMH 控制方案通过简化抓握选择，使假肢设备的主动使用更加便捷，从而更快地完成涉及双手活动的具有挑战性和相关的任务。
