METHODOLOGY AND DISPLAY INSTRUMENT TO NONINVASIVELY DETERMINE PULMONARY CHARACTERISTICS THROUGH BREATH ANALYSIS AND ARTERIAL BLOOD MEASUREMENT

摘要

PPROBLEM TO BE SOLVED: To provide a method for determining respiratory characteristics of lung-pulmonary circulation system by respiratory gas and blood gas data, and a displaying instrument for the same. PSOLUTION: The methodology to determine respiratory characteristics includes a nozzle means for passing ventilation gas, a step of measuring inspiration capacity VI, OSB2/SB-COSB2/SBpartial pressures ISP*/SP(OSB2/SB-COSB2/SBpartial pressure in mixed vein) at inspiration and OSB2/SB-COSB2/SBpartial pressures ETSP*/SPof end-tidal gas through a gas sensor mounted on the nozzle during breathing and using the measured values as primary input values of respiratory gases; a step of measuring OSB2/SB-COSB2/SBgas partial pressure of arterial blood aSP*/SP; and a step of inputting the measured values into a step of inputting the measured values to analyze numerical systems such as mass balance equations for OSB2/SBand COSB2/SBby a computer to obtain significant physiological characteristics of the respiratory organs. PCOPYRIGHT: (C)2008,JPO&INPIT