Patent ID: 8332026
Filing Date: 2012-12-11
Classification: A61B

Abstract:
1. A method of analyzing composition of a body, the method comprising: establishing contact of current electrodes with four extremities, each extremity contacting at least one of the current electrodes; establishing contact of voltage measuring electrodes with the four extremities, each extremity contacting at least one of the voltage measuring electrodes; applying a first current signal between first and second extremities through a body via the current electrodes contacting the first and second extremities; simultaneously with applying of the first current signal, applying a second current signal between third and fourth extremities through the body via the current electrodes contacting the third and fourth extremities; simultaneously measuring voltage signals from the voltage measuring electrodes contacting the four extremities; and processing a first set of voltage signals among the measured voltage signals to determine a composition parameter of a first portion of the body based on the first set of voltage signals and the first current signal, and further processing a second set of voltage signals among the measured voltage signals to determine a composition parameter of a second portion of the body based on the second set of voltage signals and the second current signals, wherein the composition of the body is assessed using at least the determined composition parameters, wherein the first current signal comprises a first sinusoidal signal having a first frequency and a second sinusoidal signal having a second frequency which is distinguishable from the first frequency, wherein the first current signal represents superimposed frequencies, wherein the composition parameter of the first portion comprises a first value representing impedance of the first portion with respect to the first frequency and a second value representing impedance of the first portion with respect to the second frequency.