Patent ID: 6616615
Filing Date: 2003-09-09
Classification: A61B

Abstract:
A respiratory analyzer, operative to determine a metabolic rate of a subject, comprising:a flow path, through which respiratory gases pass as the subject breathes through the respiratory analyzer; a flow meter operative to generate a flow signal as a function of a flow rate of gases passing through the flow path; a capnometer operative to generate a capnometer signal as a function of an instantaneous carbon dioxide content of gases within the flow path; and an electronic computer operative to receive the flow signal from the flow meter and the capnometer signal from the capnometer, the electronic computer being operative to determine a carbon dioxide production, an oxygen consumption, and the metabolic rate of the subject, wherein the oxygen consumption is determined by subtracting a difference volume from an inhaled volume, wherein the difference volume is an exhaled volume minus an exhaled volume of carbon dioxide.