Patent ID: 8126526

Claim:
A pulse wave analyzing device comprising: a performance part for performing analyzing of a pulse wave of a living body; and a mounting member for substantially integrally mounting constituent elements of the performance part, the performance part including: a sensor section for measuring parameters relating to the pulse wave of the living body, said sensor section including at least a light emitter for emitting light of two wavelengths different from each other, and a light detector for receiving the light emitted from the light emitter and transmitted through the living body, said sensor section being configured to obtain a 2-wavelength pulse waveform by a one-time measurement as a measurement signal; an A/D converter for converting the measurement signal outputted from the sensor section into a digital signal; a memory section for storing therein measurement data including the digital signal outputted from the A/D converter; an analysis processing section for performing a predetermined data analysis with respect to the measurement data read out of the memory section; and a display section for displaying predetermined information relating to the measurement, wherein the analysis processing section includes a first analysis processor configured to perform at least a first pulse wave analysis, and a second analysis processor configured to perform at least a second pulse wave analysis different from the first pulse wave analysis, said analysis processing section being configured to perform the first and second pulse wave analyses in a manner so as to determine a degree of stress including discriminating a normal condition from a stressful condition, based on a degree of variation in pulse wave peak-to-peak intervals derived from a histogram of peak-to-peak intervals, the degree of variation for a stressful condition being lower than for a normal condition, said analysis processing section further being configured to determine one or more conditions selected from the group consisting of: a sleep apnea index, based on a 2-wavelength pulse waveform; an arrhythmia, based on pulse wave peak-to-peak intervals utilizing a 1-wavelength pulse waveform; a depth of sleep, based on an amplitude of a pulse waveform and a variation in the pulse waveform; and a blood vessel age, based on an acceleration pulse waveform obtained by a derivation of a pulse waveform.