PROBLEM TO BE SOLVED: To calculate resistance at a position of a respiratory tract corresponding to two pressure sensors.SOLUTION: A respiratory tract information display device includes a plurality of pressure sensors 21-1 to 21-6 for taking out pressure signals from a plurality of places of a respiratory tract through catheters 12-1 to 12-6, a flow rate sensor 24 for taking out a flow rate signal in the respiratory tract, an oxygen sensor 22 for taking out an oxygen concentration signal in the respiratory tract, a carbon dioxide sensor 23 for taking out a carbon dioxide concentration signal in the respiratory tract, resistance calculation means for calculating resistance at a position of the respiratory tract corresponding to two of the pressure sensors 21-1 to 21-6, imaging means for imaging the oxygen concentration and the carbon dioxide concentration, and display control means for displaying the calculated resistance and the image on display means.SELECTED DRAWING: Figure 1【課題】２つの圧力センサに対応する気道の位置における抵抗を算出する。【解決手段】カテーテル１２－１～１２－６を介して気道の複数カ所から圧力信号を取り出す複数個の圧力センサ２１－１～２１－６と、前記気道における流量信号を取り出す流量センサ２４と、前記気道における酸素濃度信号を取り出す酸素センサ２２と、前記気道における二酸化炭素濃度信号を取り出す二酸化炭素センサ２３と、前記２つの圧力センサ２１－１～２１－６に対応する気道の位置における抵抗を算出する抵抗算出手段と、酸素濃度と二酸化炭素濃度とを画像化する画像化手段と、算出された抵抗と、画像とを表示手段に表示する表示制御手段とを具備する。【選択図】図１
