プリシェイピング時の表面筋電位を用いた筋電義手の手指動作推定法

抄録

Myoelectric prosthetic hand is a kind of electric prosthesis hand which is an alternative to the lost hand of the upper limb amputee. By using surface myoelectric potential, which is measured from the residual limb, it is possible to perform voluntary operation. However, compared to healthy hands, conventional prosthetic hands have problems such as delay in motion, need for excessive operating force, and sequential motion of prosthetic hands. Therefore, this paper proposed a finger motion estimation method using transient signals of surface myoelectric potential during pre-shaping of finger motion. We implemented a method to detect myoelectric peaks during pre-shaping. As a result of actual experiments, the usefulness of myoelectric information near the peak was verified. Then, we implemented a grasping posture identification method using surface myoelectric potential at the time of myoelectric peak occurrence by pre-shaping.