Systems and methods for EEG monitoring
First Claim
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1. A medical monitoring system, comprising:
- an electroencephalography (EEG) sensor array comprising a plurality of electrodes configured for EEG monitoring, wherein the plurality of electrodes are configured to be disposed about a patient'"'"'s head, and wherein the plurality of electrodes comprise a ground electrode, a reference electrode, and a plurality of sensing electrodes; and
an EEG monitor operatively coupled to the EEG sensor array, wherein the EEG monitor comprises;
input circuitry configured to receive EEG signals from the plurality of sensing electrodes;
a processor configured to;
determine a plurality of depth of anesthesia indices based at least in part on the EEG signals, wherein the depth of anesthesia indices comprise bispectral indices; and
generate a topographic color map of the depth of anesthesia indices based on a color scale, wherein the color scale comprises a predetermined set of colors, wherein each color of the predetermined set of colors represents a predetermined depth of anesthesia index; and
a display configured to display the topographic color map;
wherein the EEG monitor is configured to receive a user selection of one or more regions of the patient'"'"'s head to monitor, wherein the display is configured to display an anesthesia index for each of the one or more regions, and wherein the processor is configured to determine a correlation between depth of anesthesia indices associated with a first region of the patient'"'"'s head and depth of anesthesia indices associated with a second region of the patient'"'"'s head, and wherein the processor is configured to detect a clinically adverse event based at least in part upon the correlation.
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Abstract
A patient monitoring system includes an electroencephalography (EEG) monitor and an EEG sensor array. The EEG sensor array includes a plurality of electrodes configured to acquire EEG signals from a patient. The EEG monitor may be configured to calculate one or more depth of anesthesia indices for the patient based on received EEG signals from the EEG sensor array. Additionally, the EEG monitor may be configured to generate and display a topographic color map of the calculated depth of anesthesia indices.
29 Citations
21 Claims
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1. A medical monitoring system, comprising:
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an electroencephalography (EEG) sensor array comprising a plurality of electrodes configured for EEG monitoring, wherein the plurality of electrodes are configured to be disposed about a patient'"'"'s head, and wherein the plurality of electrodes comprise a ground electrode, a reference electrode, and a plurality of sensing electrodes; and an EEG monitor operatively coupled to the EEG sensor array, wherein the EEG monitor comprises; input circuitry configured to receive EEG signals from the plurality of sensing electrodes; a processor configured to; determine a plurality of depth of anesthesia indices based at least in part on the EEG signals, wherein the depth of anesthesia indices comprise bispectral indices; and generate a topographic color map of the depth of anesthesia indices based on a color scale, wherein the color scale comprises a predetermined set of colors, wherein each color of the predetermined set of colors represents a predetermined depth of anesthesia index; and a display configured to display the topographic color map; wherein the EEG monitor is configured to receive a user selection of one or more regions of the patient'"'"'s head to monitor, wherein the display is configured to display an anesthesia index for each of the one or more regions, and wherein the processor is configured to determine a correlation between depth of anesthesia indices associated with a first region of the patient'"'"'s head and depth of anesthesia indices associated with a second region of the patient'"'"'s head, and wherein the processor is configured to detect a clinically adverse event based at least in part upon the correlation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for monitoring a patient, comprising:
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receiving, via an electroencephalograph (EEG) monitor, a plurality of EEG signals from an EEG sensor array, wherein the EEG sensor array comprises a plurality of electrodes configured to be disposed about a patient'"'"'s head; determining, via the EEC monitor, a depth of anesthesia index for each EEG signal of the plurality of EEG signals, wherein the depth of anesthesia index comprises a bispectral index, wherein a first portion of the EEG signals corresponds to a first region of the patient'"'"'s head and wherein a second portion of the EEG signals corresponds to a second region of the patient'"'"'s head; generating, via the EEG monitor, a topographic color map of depth of anesthesia indices of the first region and depth of anesthesia indices of the second region; displaying, via the EEG monitor, the topographic color map; and determining, via the EEG monitor, a patient condition based on a correlation between the depth of anesthesia indices of the first region and the depth of anesthesia indices of the second region. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. An electroencephalography (EEG) monitor, comprising:
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an EEG sensor array; input circuitry configured to receive a plurality of EEG signals from the EEG sensor array, wherein the EEG sensor array is configured to be coupled to the EEG monitor and, wherein the EEG sensor array comprises a plurality of electrodes configured to be disposed about a patient'"'"'s head; and a processor configured to; determine a plurality of depth of anesthesia indices based on the received plurality of EEG signals, wherein the depth of anesthesia indices comprise bispectral indices; determine a correlation between depth of anesthesia indices associated with a first region of the patient'"'"'s head and depth of anesthesia indices associated with a second region of the patient'"'"'s head; provide an index for the first and second head regions based on the depth of anesthesia indices associated with electrodes disposed on the respective head regions; detect an anesthesia condition of the patient based at least in part upon the index for each head region and on the determined correlation; and provide a user-perceivable indication of the anesthesia condition. - View Dependent Claims (19, 20, 21)
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Specification