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  • Title: A blink restoration system with contralateral EMG triggered stimulation and real-time artifact blanking.
    Author: Yi X, Jia J, Deng S, Shen SG, Xie Q, Wang G.
    Journal: IEEE Trans Biomed Circuits Syst; 2013 Apr; 7(2):140-8. PubMed ID: 23853296.
    Abstract:
    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 the myoelectric signal of orbicularis oculi at the normal side in real-time as the trigger to stimulate the paralyzed eyelid. Design issues are discussed, including EMG processing, stimulating strategies and real-time artifact blanking. Two artifact removal approaches based on sample and hold and digital filtering technique are proposed and implemented. Finally, the whole system has been verified on rabbit models.
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