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Method and apparatus for determining the cerebral state of a patient with fast response

  • US 20030055355A1
  • Filed: 04/15/2002
  • Published: 03/20/2003
  • Est. Priority Date: 10/16/2000
  • Status: Active Grant
First Claim
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1. A method for ascertaining the cerebral state of a patient, including a state resulting from the administration of a drug, said method comprising the steps of:

  • (a) obtaining EEG signal data from the patient;

    (b) obtaining EMG signal data from the patient;

    (c) analyzing a sample of sequential EEG signal data to obtain a first indication indicative of the cerebral state of the patient;

    (d) analyzing a sample of sequential EMG signal data temporally related to the EEG signal data sample to obtain a second indication indicative of electromyographic activity in the patient; and

    (e) producing a composite indication from the first and second indications obtained at steps (c) and (d) indicative of the cerebral state of the patient.

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