Patent ID: 8204587

Claim:
An iontophoresis apparatus comprising: a plurality of electrodes installed in a mask or patch configured to be attached to skin of a user; and an iontophoresis chip module configured to be detachably attached to a certain position of the mask or patch and electrically connected to the electrodes, wherein the iontophoresis chip module comprises: a wireless rechargeable unit able to be charged in a non-contact charging manner; a microprocessor operating by the power received from the wireless rechargeable unit and storing a control program; a control drive for controlling voltage, frequency and current applied to the electrodes in response to a command of the microprocessor; an output unit connected to the control drive to transmit constant current to the electrodes; a skin diagnosis measuring unit connected to the output unit and receiving bio-impedance of the user measured from the electrodes; and an A/D converter for converting analog data detected from the skin diagnosis measuring unit into digital data and inputting the converted digital data into the microprocessor, characterized in that the microprocessor sets optimal voltage, frequency and current to be applied to the electrodes based on bio-impedance of the user measured by the skin diagnosis measuring unit and controls the output unit through the control drive, wherein the output unit comprises first and second output units separately controlled by the microprocessor, the electrodes are configured in two pairs, and the two pairs of electrodes are connected to the first and second output units respectively, and wherein the microprocessor is configured to control the first and second output units to output current in wave form to the two pairs of electrodes, said current waves transmitted to the two pairs of electrodes in phased interference to each other thereby creating a wave interference phenomena for accelerating the iontophoresis effect.