ELECTRODE CONNECTION MONITORING
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Accused Products
Abstract
The present invention relates to an apparatus and a method for measuring muscular activity, in particular in relation to bruxism, and providing an electrical stimulation in response to the measured muscular activity through electrodes applied to the skin of an individual, wherein the quality of the connectivity of the electrodes to the skin is monitored and the electrical stimulation signal is changed based on said quality measurement.
13 Citations
43 Claims
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1-35. -35. (canceled)
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36. Apparatus comprising:
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an electrode assembly comprising three electrodes;
a first, a second and a reference electrode, mounted on a common substrate in a fixed spatial relationship one to another wherein said reference electrode lies approximately equidistant from said first and second electrodes, said electrode assembly adapted for being applied to the skin of an individual, wherein the apparatus is operative to receive and monitor electrical signals and provide electrical stimulation to said individual, said apparatus further comprising;inputs for receiving signals from said electrodes, means for measuring EMG signals from said electrode(s) when the electrodes are applied to the skin, a source of a monitoring signal having a frequency and outputs for use in applying said monitoring signal alternately to said first and second electrodes, means for determining the amplitude of the frequency of the monitoring signal at the input of said reference electrode, means for providing an electrical stimulation feedback signal to the reference electrode upon the detection of EMG signals indicative of a muscular activity relating to bruxism of the individual, wherein said apparatus is configured so that said monitoring signal is applied at a voltage sufficient to produce a preset current between the first electrode and the reference electrode and between the second electrode and the reference electrode, wherein the amplitude of the frequency of the monitoring signal at said reference electrode is measured to determine the quality of the connection via the skin between the first electrode and the reference electrode and the quality of the connection via the skin between the second electrode and the reference electrode, and wherein the feedback signal is modulated if the quality of the electrical connection between the electrodes is changed. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43)
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Specification