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CLOSED LOOP DRUG ADMINISTRATION METHOD AND APPARATUS USING EEG COMPLEXITY FOR CONTROL PURPOSES

  • US 20020173729A1
  • Filed: 05/21/2001
  • Published: 11/21/2002
  • Est. Priority Date: 05/18/2001
  • Status: Active Grant
First Claim
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1. A method for administering an hypnotic drug to a patient, said method comprising the steps of:

  • (a) establishing a desired hypnotic level to be provided in the patient;

    (b) administering the hypnotic drug to the patient;

    (c) obtaining EEG signal data from the patient;

    (d) deriving at least one measure of the complexity of the EEG signal data;

    (e) determining the hypnotic level existing in the patient from the complexity of the EEG signal data;

    (f) comparing the hypnotic level existing in the patient to the desired hypnotic level; and

    (g) controlling the administration of the hypnotic drug to the patient in accordance with the comparison of step (f).

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