CIRCULATION TIME MEASUREMENT DEVICE, ESTIMATED CARDIAC OUTPUT CALCULATION APPARATUS, CIRCULATION TIME MEASUREMENT METHOD, ESTIMATED CARDIAC OUTPUT CALCULATION METHOD, AND PROGRAM
A circulation time measurement device includes: a signal acquisition unit that acquires an air flow signal indicating a temporal change of an air flow of breathing and an oxygen saturation signal indicating a temporal change of oxygen saturation; and a circulation time calculation unit that measures an oxygen delivery circulation time of blood based on a time difference between a predetermined first time in the air flow signal and a second time in the oxygen saturation signal indicating an increase in oxygen saturation corresponding to resumption of breathing at the first time.