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Depth of anesthesia monitor

  • US 6,117,075 A
  • Filed: 09/21/1998
  • Issued: 09/12/2000
  • Est. Priority Date: 09/21/1998
  • Status: Expired due to Fees
First Claim
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1. A method for monitoring a level of alertness, comprisinga) sensing an electrically passive oscillating biological parameter;

  • b) generating a power-frequency distribution describing a pattern of oscillation of said parameter;

    c) quantifying a frequency axis dimension of a peak frequency bandwidth of said power-frequency distribution; and

    d) inferring a level of alertness from said quantified frequency axis dimension.

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