METHOD FOR CALIBRATING THE LEVEL OF OXYGEN IN RESPIRATORY GAS RELATED TO THE LEVEL OF OXYGEN IN THE BLOOD CIRCULATION OF AN INDIVIDUAL

摘要

The present invention relates to a method for calibrating or adjusting the level of oxygen in respiratory gas related to the level of oxygen in the blood circulation of the individual comprising providing a level of oxygen in the gas flow passing into or out of the respiratory system of the individual and producing a corresponding first output providing a level of oxygen in the blood circulation of the individual and producing a corresponding second output providing a computer for receiving and storing at least two measurements each measurement being the concurrent output of said first output and said second output within a data structure in which the two stored outputs are mutually related in data storage means associated with the computer the at least two measurements being conducted at respective levels of oxygen in the gas flow passing into the respiratory system and calibrating the level of oxygen in the gas value in response to a delay between the level of oxygen in the blood circulation of the individual and the level of oxygen in the gas flow passing into or out of the respiratory system of the individual.