Patent ID: 6567692
Filing Date: 2003-05-20
Classification: A61B

Abstract:
A body fat measuring device for measuring the amount of body fat within a body, the device comprising:(a) a single or a plurality of electrodes in contact with each of a plurality of sites on the dermal surface of the body; (b) a power supply circuit for applying a constant current or voltage to the electrodes; (c) impedance measuring means for switching the electrodes to be connected to the power supply circuit such that a contact impedance and a body distal site surrounding composition impedance are present between the electrodes or such that a contact impedance, a body distal site surrounding composition impedance and a body composition impedance are present between the electrodes, whereby the value of the composite of the contact impedance and the body distal site surrounding composition impedance and the value of the composite of the contact impedance, the body distal site surrounding composition impedance and the body composition impedance are respectively measured; and (d) calculating means for calculating the value of the body composition impedance based on the measured values obtained by the impedance measuring means.