Patent ID: 8466694
Filing Date: 2013-06-18
Classification: A61B

Abstract:
1. A biometric measurement apparatus comprising: an impedance measurer for measuring the impedance of tissues and blood in a living body with a first frequency, for output as a first impedance, and for measuring the impedance of tissues and blood of the living body with a second frequency, the second frequency higher than the first frequency, for output as a second impedance, the impedance measurer having output electrodes and input electrodes that are in contact with the surface of the body during the measurement; a first analyzing unit for analyzing variation in the first impedance, to output as a first variation amount; a second analyzing unit for analyzing variation in the second impedance, to output as a second variation amount; an index generator for generating an index indicating a component of the blood based on the ratio between the first variation amount and the second variation amount; and wherein the first variation amount is ΔZ