×

Method and apparatus based on combination of physiological parameters for assessment of analgesia during anesthesia or sedation

  • US 7,367,949 B2
  • Filed: 07/07/2003
  • Issued: 05/06/2008
  • Est. Priority Date: 07/07/2003
  • Status: Active Grant
First Claim
Patent Images

1. A method for monitoring a condition of a patient under anesthesia or sedation, the method comprising the steps of:

  • acquiring at least a first signal representing a cardiovascular activity of the patient;

    deriving, from said first signal, at least a first and a second parameter value, said first and second parameter values being related to two mutually different quantities selected from a group of quantities including waveform amplitudes, waveform periodicity, waveform morphology, and waveform variability;

    applying a predetermined mathematical index for probability of patient comfort, in which index said at least first and second parameters are variables;

    calculating successively changing values of said mathematical index; and

    indicating said successive index values.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×