Patent ID: 8874186
Filing Date: 2014-10-28
Classification: A61B

Abstract:
1. A system for monitoring a physiological parameter comprising: a substrate arranged to be removably securable to a biological organism; a first drive electrode, a second drive electrode, a first detection electrode, a second detection electrode, and an RFID device having a chip with a unique identifier, each disposed on the substrate; an RFID transceiver; and wherein the RFID device is in electrical communication with each of the first drive electrode, the second drive electrode, the first detection electrode, and the second detection electrode, wherein the RFID device is configured to provide an electrical signal to each of the first and second drive electrodes and the RFID device is configured to detect a voltage at each of the first and second detection electrodes, wherein the RFID device is configured to determine a voltage profile based at least in part on the voltages detected at the first and second detection electrodes, and wherein the RFID device is configured to determine the physiological parameter, which is a wound depth, by applying AC currents of varying frequency, and wherein the RFID transceiver is arranged to transmit radio signals to, and receive radio signals from, the RFID device.