CIRCULATION TIME MEASUREMENT DEVICE, ESTIMATED CARDIAC OUTPUT CALCULATION APPARATUS, CIRCULATION TIME MEASUREMENT METHOD, ESTIMATED CARDIAC OUTPUT CALCULATION METHOD, AND PROGRAM

摘要

A circulation time measurement device comprises: a signal acquisition unit which acquires an air flow signal indicating the temporal change of an air flow of breathing, and an oxygen saturation signal indicating the temporal change of oxygen saturation; and a circulation time calculation unit which measures an oxygen delivery circulation time of blood on the basis of a time difference between a predetermined first point in time in the air flow signal and a second point in time in the oxygen saturation signal at which the increase of oxygen saturation corresponding to the resumption of breathing at the first point in time is shown.