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Arrangement and method for carrying out electrode measurements

  • US 9,770,184 B2
  • Filed: 05/12/2015
  • Issued: 09/26/2017
  • Est. Priority Date: 11/12/2012
  • Status: Active Grant
First Claim
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1. An arrangement for carrying out electrode measurements on a surface of a skin of a patient'"'"'s head for recording electrical activity of the brain, the arrangement, comprising:

  • a matrix electrode configuration, which includes a body part of non-conductive material adapted to conform to contours of the surface of the skin, and which body part includes electrodes for producing measurement data;

    means for transmitting the measurement data connected to the body part;

    a measurement data unit for receiving the measurement data from the transmitting means for further processing of the measurement data,wherein the body part includes an electrode placement configuration for maintaining mutual placements of the electrodes with respect to one another, and the electrodes being configured to establish an electroconductive active attachment surface located between the electrodes and the surface of the skin for forming an electroconductive attachment contact between the electrodes and the surface of the skin for transmitting measurable signals from the patient'"'"'s head to the electrodes through the electroconductive active attachment surface to produce measurement data, the electroconductive active attachment surface including hydrogel or other electroconductive adhesive material which adheres to the skin in order to form a stable and essentially interference-free attachment contact between the electrodes and the surface of the skin;

    the matrix electrode configuration having at least two reference electrodes and at least two ground electrodes, wherein the matrix electrode configuration is configured for selection of any electrode combination including more than one each of the at least two reference electrodes and the at least two ground electrodes for producing the measurement data, and the electrodes of the matrix electrode configuration are of an optimized spiral structure configured to be in contact with hairless skin areas on the surface of the skin through the electroconductive active attachment layer, wherein the matrix electrode configuration is optimized through a relationship between the electroconductive active attachment surface and a non-conductive surface; and

    a grounding layer formed completely or partly over the body part to prevent external electrical interferences by isolating the grounding layer with an isolation layer from the electroconductive active attachment surface and the means for transmitting the measurement data.

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