Analysis device of pulse wave signal, analysis method of pulse wave signal and computer program

摘要

Problem to be solved: to provide an apparatus for analyzing a pulse wave signal and a method of analyzing a pulse wave signal which can accurately determine the state of atrial fibrillation with a simple method.A pulse wave analyzing apparatus is composed of a pulse wave detecting section (104) for detecting a pulse wave signal according to a heartbeat of a living body, and a spectrum generating section (108) for Fourier transform of a pulse wave signal detected by a pulse wave detecting section (104) to generate a frequency spectrum. An atrial fibrillation detecting portion (113) for detecting the state of atrial fibrillation based on the frequency spectrum generated by the spectrum generating section (108) is provided.The spectrum generator 108 calculates the Fourier transform of the predetermined frame time of the pulse wave signal in the range of 0.005 to 0.02 seconds.Further, a filter (105) for filtering the pulse wave signal detected by the pulse wave detecting section (104) is further provided, and the spectrum generating section (108) performs Fourier transformation of the pulse wave signal output from the filter (105).