A virtual myoelectric prosthesis training system capable of providing instructions on hand operations
A virtual myoelectric prosthesis training system capable of providing instructions on hand operations
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DOI：
10.1177/1729881417728452
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发表时间：
2017-09
影响因子：
2.3
通讯作者：
Go Nakamura;T. Shibanoki;Y. Kurita;Y. Honda;Akito Masuda;Futoshi Mizobe;T. Chin;T. Tsuji
中科院分区：
文献类型：
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作者：
Go Nakamura;T. Shibanoki;Y. Kurita;Y. Honda;Akito Masuda;Futoshi Mizobe;T. Chin;T. Tsuji
本文提出了一个虚拟手和虚拟训练系统，用于控制MyoBock-世界上最常用的肌电假手。由于虚拟手的控制使用的方法也通过了MyoBock手，所提出的系统提供了上肢截肢者的操作灵敏度类似的MyoBock控制经验。它还可以显示一个额外的虚拟手，用于提供手部操作的指令，例如抓取物体的推荐姿势和到达目标所需的轨迹。在与截肢者进行的虚拟手控制实验中，评估了所提出的虚拟手的可操作性，受试者成功地进行了稳定的打开和关闭，具有较高的识别率（89.3±6.65%），这要归功于虚拟手的MyoBock的操作特性的合并。使用所提出的系统的训练实验也进行了为期5天的8个健康的参与者。参与者被要求在第一天和最后一天在真实的环境中使用MyoBock手进行方块测试。结果表明，在1分钟内运输的块的数量显着增加，使用指令虚拟手的参与者改变了方向的手接近块从垂直到横向。实验结果表明，该系统可用于改善MyoBock手控操作的定量和定性。
This article proposes a virtual hand and a virtual training system for controlling the MyoBock—the most commonly used myoelectric prosthetic hand worldwide. As the virtual hand is controlled using the method also adopted for the MyoBock hand, the proposed system provides upper-limb amputees with operation sensibilities similar to those experienced in MyoBock control. It can also display an additional virtual hand for the provision of instructions on hand operation, such as the recommended posture for object grasping and the trajectory desirable to reach a target. In virtual hand control experiments conducted with an amputee to evaluate the proposed virtual hand’s operability, the subject successfully performed stable opening and closing with high discrimination rates (89.3±6.65%), thanks to the virtual hand’s incorporation of the MyoBock’s operational characteristics. A training experiment using the proposed system was also conducted with eight healthy participants over a period of 5 days. The participants were asked to perform the box and block test using the MyoBock hand in a real environment on the first and final days. The results showed that the number of blocks transported in 1 min significantly increased and that the participants using the instruction virtual hand changed the orientation of the hand approaching blocks from vertical to lateral. The outcomes of the experiment indicate that the proposed system can be used to improve MyoBock hand control operation both quantitatively and qualitatively.