The study of compatible device of key input for handicapper of upper extremities

随着网络技术的发展，上肢功能障碍患者的活动范围不断扩大。鼠标和键盘是计算机操作中常用的输入设备。他们使用了一个由自助设备志愿者或物理治疗师亲自制作的键盘盖。但是，更换电脑时，键盘盖存在兼容性问题。原因是新键盘的形状和按键排列与旧键盘不一样。此外，使用键盘盖有移动手指的阻力。因此，这不是对助残者的完全支持。因此，本研究试图设计和制造一种新型兼容的按键输入设备。通过受试者的肌电图（EMG）和三维运动测量来评估新兼容装置的可用性。与没有键盘盖和使用键盘盖相比，该装置降低了键盘输入时肩袖肌肉的生理劳损。我们在使用第一台生产的设备时遇到了一个问题。由于双手操作困难，我们生产了第二种可以双手操作的设备。对残疾人的扶持还需要进一步的研究。

Handicapper who has dysfunction of upper extremities expands his sphere of activities with the growth of internet-technology. Mouse and keyboard commonly use for input device of computer operating. They have been used a keyboard-cover which was personally made by volunteer of self-help device or physical therapist. However, there is a compatibility problem in keyboard-cover when a computer replace. The reason is that the shape and key arrangement of the new keyboard is not same as the former one. Furthermore, the using keyboard-cover has a resistance to move finger. Hence, it was not fully support for handicapper. Accordingly, this study was attempted to design and produce new compatible device of key input.The availability of new compatible device was evaluated by subject's electromyogram(EMG) and 3-d motion measurement. In comparison with none and using keyboard-cover, first produced device lowered physiological strain of rotator-cuff muscles during key-input operation. We faced on the problem in using first produced device. As it is difficult to operate with both hands, we produced the second device that is able to operate with both hands.Further study is needed for supporting handicapper.