DESIGN AND DEVELOPMENT OF THE SYSTEM FOR THE MOVEMENT OF PARALYZED PART OF THE LIP

When any nerve gets injured around the mouth portion then it results into mouth paralysis. For the movement of paralyzed portion of the lips this device is designed. There are two steps for giving movement to disable portion. One is taking EMG and other is controlling a hardware through servo motor. System initiates at 5V power supply. By placing electrodes on the strongest nerve EMG signal is taken from working part of lips with the help of electromyograph electrodes. Two electrodes are used here on the either sides of the lip corner, we can add more electrodes if needed. To read the strength of the signal LCD id placed. This EMG signal is given to instrumentation amplifier on EMG amplification board to make is strong signal. Then it is given to filter to eliminate noise and then rectifier makes it D.C .Again smoothing circuit is there to make it smooth DC from pulsating D.C. then applying it on aurduino uno analog signal is converted into digital signal. This digital signal drives th e servomotor to move the paralyzed potion of lips on hardware module.