A Pilot Study of the SMG Controlled Prosthesis
The majority of the upper limb powered prosthetic devices are controlled by the surface electromyography (SEMG) now. But most commercial myoelectric prostheses can provide only one practical degree of freedom (DOF), directed by the flexion-extension of arm muscles. Though many alternative signal sources have been investigated for prostheses control, such as the mechanical force, myoacoustic signal, tissue morphological changes, and EEG, these alternative approaches are mostly the laboratory products. The sonography has been commonly used to detect the morphological information of human muscles in both static and dynamic conditions. We named the signal about the muscle morphological changes derived from ultrasound as sonomyography (SMG). In this study, we demonstrated the feasibility to use the muscle thickness deformation SMG as a new signal source to control one DOF prosthesis. The thickness deformations of the extensor carpi radialis muscle were measured during the wrist extension and flexion process to substitute the SEMG signal to control a reconstructed commercial myoelectric prosthesis. The results suggested that muscle deformation SMG could well control the prosthesis to open and close in the off-line way.
Jun Shi Yongping Zheng Kangyuan Zhou
School of Communication and Information Engineering, Shanghai University, 200072, China Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hong Kong Department of Electronic Engineering and Information Science, University of Science and Technology o
国际会议
北京
英文
1197-1200
2007-05-23（万方平台首次上网日期，不代表论文的发表时间）