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Magnetic resonance safe cable for biopotential measurements

  • US 10,285,608 B2
  • Filed: 05/27/2013
  • Issued: 05/14/2019
  • Est. Priority Date: 05/25/2012
  • Status: Active Grant
First Claim
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1. A device for use in biopotential measurements in a magnetic resonance (MR) environment, the device comprising:

  • a cable including;

    a flexible plastic or polymer sheet extending as a single unitary structure from a first end to an opposite second end;

    an electrically conductive trace disposed on the flexible plastic or polymer sheet and running from the first end to the opposite second end, the electrically conductive trace having sheet resistance of one ohm/square or higher, the electrically conductive trace having a hatching or checkerboard pattern; and

    an electrode patch disposed on the electrically conductive trace at the second end, the electrode patch comprising a plurality of electrodes, the electrodes including;

    a layer of electrically conductive material disposed on the electrically conductive trace at the second end that is more electrically conductive than the material comprising the electrically conductive trace, andan attachment layer disposed on the layer of electrically conductive material and configured to attach the electrode to human skin, the attachment layer comprising silver chloride;

    wherein the cable and the electrode patch are attachable and detachable to each other via a mating connector disposed on one of the cable and the electrode patch.

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