| abstract |
(57) [Summary] [Purpose] Accurate analysis of components in blood by directly measuring the components in blood in vivo by photoacoustic analysis by removing the influence of components contained in tissues other than blood. Provided are a photoacoustic analysis method and device capable of performing the above, and a non-invasive blood component analysis device using the same. [Composition] In the photoacoustic analysis method, a component that absorbs light is analyzed by observing the phenomenon that heat generated when it is deactivated by non-radiative transition is radiated to the surroundings in the form of an acoustic wave. A photoacoustic analysis method and device, characterized in that a component having a velocity in a sample is selectively quantified by detecting a signal component of a signal, which is frequency-shifted from a modulation frequency of a light source, and the same are used. Non-invasive blood component analyzer. |