Blink Restoration System with Contralateral EMG Triggered Stimulation and Real-Time Software Based Artifact Blanking
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Patients suffering from facial paralysis are on the hazard of disfigurement and loss of vision due to loss of blink function. Functional-electrical stimulation (FES) is one possible way of restoring blink and other functions in these patients. A blink restoration system for uni-lateral facial paralyzed patients is described in this paper. The system achieves restoration of synchronized blink through processing on EMG signal from eyelid of healthy side in real-time and stimulating the paralyzed eyelid. Design issues are discussed, including real-time artifact blanking, stimulating strategies and EMG processing. An artifact removal algorithm based on software sample and hold technique is proposed. Finally, the whole system has been verified on rabbits.
J. Jia, X. Yi, M. Wang, G. Wang, S. Deng and G. Shen, "A blink restoration system with contralateral EMG triggered stimulation and real-time software based artifact blanking," 2012 IEEE International Symposium on Circuits and Systems (ISCAS), 2012, pp. 1536-1539, doi: 10.1109/ISCAS.2012.6271543.