Patent ID: 8548578

Claim:
A living body state monitor apparatus comprising: a living body information acquisition device to acquire living body information containing an electrocardiography waveform and a pulse waveform with respect to a living body of a user; an irregular heartbeat detection section to detect an irregular heartbeat from the electrocardiography waveform; a pulse wave feature quantity extraction section to extract a pulse wave feature quantity from a pulse wave corresponding to the irregular heartbeat; a living body state determination section to determine a danger degree on living body state of the user using both first information and second information, the first information being at least one of information on kind of an irregular heartbeat detected by the irregular heartbeat detection section and information on time of the irregular heartbeat, the second information being at least one of a pulse wave feature quantity extracted by the pulse wave feature quantity extraction section, and a variation of the extracted pulse wave feature quantity; and a living body information storage device to store an irregular heartbeat and a pulse wave feature quantity, wherein the living body state determination section determines a danger degree on living body state using a contrast result between (i) a pulse wave feature quantity, which is within a past predetermined time period and stored by the living body information storage device, and (ii) a pulse wave feature quantity extracted by the pulse wave feature quantity extraction section.