US 9,636,019 B2Granted

Device for use in electro-biological signal measurement in the presence of a magnetic field

AssigneeThe Medical Research, Infrastructure and Health Services Fund of the Tel Aviv Medical Center

InventorsTalma Hendler, Mordekhay Medvedovsky, Andrey Zhdanov, Ilana Klovatch, Firas Fahoum

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Abstract

A device is presented for use in an EEG measurement performed in the presence of a magnetic field. The device includes a wiring array for connecting an electrodes arrangement to an electroencephalogram (EEG) monitoring device. The wiring array includes sampling lines arranged to form first and second groups of sampling lines, arranged in a spaced-apart substantially parallel relationship extending along first and second axes respectively, at least some of the sampling lines being wire bundles including a plurality of wires for connecting to a corresponding plurality of electrodes of the EEG electrodes arrangement; the first and second groups of sampling lines intersect with each other to form a net structure when placed on area of measurement. The wiring array thereby enable generation of EEG data characterized by reduced motion artifact and/or reduced gradient artifact associated with the presence of the magnetic field during the EEG measurement.

Claims30

Dependent claims

A measurement device for use in an electroencephalogram (EEG) measurement performed in the presence of a magnetic field, the measurement device comprising a wiring array for connecting an electrodes arrangement comprising a plurality of EEG electrodes to an EEG monitor comprising a control unit being configured and operable to analyze neural signals received from said electrodes arrangement and generate EEG data, wherein:

the wiring array comprises a plurality of sampling lines arranged to form a first group of sampling lines arranged in a spaced-apart substantially parallel relationship extending along a first axis, at least some of said first group of sampling lines being a first group of wire bundles each comprising a plurality of first wires for connecting to a corresponding first plurality of electrodes, of said electrodes arrangement, extending along said first axis;
and a second group of sampling lines arranged in a spaced-apart substantially parallel relationship extending along a second axis, at least some of said second group of sampling lines being a second group of wire bundles each comprising a plurality of second wires for connecting to a corresponding second plurality of electrodes, of said electrodes arrangement, extending along said second axis;
wherein said first group of wire bundles intersects with said second group of wire bundles over an area of measurement locations when said wiring array is placed on a patient's scalp, the wiring array being configured and operable for simultaneously transmitting to the EEG monitor, first and second sets of EEG measurements obtained by electrodes of said electrodes arrangement being located in said area of measurement locations when said wiring array is placed on the patient's scalp, the first set being obtained along at least one sampling line of said first group of sampling lines and the second set being obtained across at least two different sampling lines of said second group of sampling lines, thereby enabling generation of EEG data characterized by at least one of a reduced motion artifact and a reduced gradient artifact associated with the presence of the magnetic field during the EEG measurement.

A method for performing an electroencephalogram (EEG) measurement in the presence of a magnetic field, the method comprising:

providing an electrode arrangement comprising a plurality of EEG electrodes, capable of being joined to a patient's head;
providing an EEG monitor comprising a control unit being configured and operable to analyze neural signals received from said electrodes arrangement and generate EEG data;
connecting said plurality of EEG electrodes to the EEG monitor, using a wiring array comprising:
a first group of sampling lines arranged in a spaced-apart substantially parallel relationship extending along a first axis, at least some of said first group of sampling lines being a first group of wire bundles, each of said first group of wire bundles comprising a plurality of first wires for connecting to a corresponding first plurality of electrodes of said plurality of EEG electrodes;
and a second group of sampling lines arranged in a spaced-apart substantially parallel relationship extending along a second axis, at least some of said second group of sampling lines being a second group of wire bundles, each of said second group of wire bundles comprising a plurality of second wires for connecting to a corresponding second plurality of electrodes, of said plurality of EEG electrodes, extending along said second axis;
wherein said second group of wire bundles intersects with said first group of wire bundles to form a net structure over an area of measurement locations on the patient's head;
measuring simultaneously first and second neural signals using electrodes located in said area of measurement locations, the first neural signal being obtained along one or more sampling lines of said first group and the second neural signal being obtained across different sampling lines of said second group;
transmitting said first and second neural signals to said EEG monitor via said wiring array;
and
analyzing said first and second neural signals and yielding EEG data being characterized by at least one of a reduced motion artifact and a reduced gradient artifact.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/878,297Filed 6 Oct 2011 · us provisional application
Priority: 7 Oct 2010
Published: US 2013/0204122 A18 Aug 2013
Granted: 2 May 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

A61B 5/0055
Detecting, measuring or recording by applying mechanical forces or stimuli: by applying suction
A61B 5/291
Specially adapted for particular uses: for electroencephalography [EEG]
A61B 5/372
Electroencephalography [EEG]: analysis of electroencephalograms
A61B 2562/222
Arrangements of sensors with cables or leads, e.g. cable harnesses: electrical cables or leads therefor, e.g. coaxial cables or ribbon cables