Patent ID: 6554763
Filing Date: 2003-04-29
Classification: A61B,A61M

Abstract:
A biofeedback guidance device comprising:a pulse wave detecting means for detecting a pulse waveform of a living body, said pulse waveform having sets of adjacent pulse waves; an analysis means for carrying out spectral analysis of changes in time intervals of each set of adjacent pulse waves obtained from said pulse waveform detected by said pulse waveform detecting means; a calculating means for calculating an indicator, wherein said indicator is calculated as an amplitude value, or a ratio of two amplitude values, of a spectral component obtained by said analyzing means; an indicator providing means for providing in real-time said indicator calculated by said calculating means or providing in real-time a second indicator determined from said indicator calculated by said calculating means; an evaluating means for evaluating changes of a state of said living body on the basis of said indicator calculated by said calculating means at not less than two different points in time; and a guidance providing means for providing guidance, for use by said living body to control said state of said living body, on the basis of a result of the evaluation carried out by said evaluating means.