Patent ID: 9113808
Filing Date: 2015-08-25
Classification: A61B,F04C

Abstract:
1. A method for measuring a localized biological transfer impedance (LBTI) of a tissue using a device including a sensor with a plurality of electrodes, the plurality of electrodes including at least a pair of current electrodes and a pair of voltage electrodes, wherein the sensor includes a flex circuit having at least a first side portion, a second side portion, a third side portion, and a fourth side portion, wherein the first side portion and the third side portion are fixed to restrict motion, and the second side portion and the fourth side portion are allowed to move freely, the method comprising: positioning the plurality of electrodes of the device in contact with a portion of the tissue; passing a current through the tissue using the pair of current electrodes; measuring a signal corresponding to a voltage resulting from the current across the pair of voltage electrodes; verifying electrical contact between (i) the tissue and the pair of current electrodes, and (ii) the tissue and the pair of voltage electrodes; indicating to a user of the device, a status of electrical contact between the tissue and at least one electrode of the plurality of electrodes; and analyzing the current passed through the tissue and the measured signal to determine the localized biological transfer impedance (LBTI) of the tissue.