A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/0488 (2006.01) A61M 16/00 (2006.01)
Patent
CA 2172329
In the method and system for electromyographic analysis of a striated muscle, electromyographic signals produced by the muscle are detected by means of an array of electrodes passing through the center of the muscle depolarizing region. Each electromyographic signal comprises an electromyographic component and a noise component. The position of the center of the muscle depolarizing region is then determined by detecting a reversal of polarity of the electromyographic components of the signals. Finally, two signals of opposite polarities amongst the electromyographic signals are subtracted. The subtraction subtracts the noise components of the two signals from each other but adds the electromyographic components of the two signals together to produce an electromyographic signal of improved signal-to-noise ratio. Advantageously, the array of electrodes is a linear array of electrodes and defines a plurality of pairs of successive electrodes, the center of the muscle depolarizing region is located between the electrodes of a given pair of successive electrodes, and the two signals of opposite polarities detected through the two pairs of successive electrodes adjacent to the given pair on opposite sides thereof are subtracted.
Friberg Sven
Grassino Alejandro
Lindstrom Lars
Sinderby Christer
Bkp Gp
Friberg Sven
Grassino Alejandro
Lindstrom Lars
Sinderby Christer
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