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Abstract

An electronic device and method for use in cosmetic and medical treatment of a person by application of electrodes to a person's skin. The device includes a high frequency oscillating circuit for supplying high frequency current in the range of from 1 to 2 megacycles per second. The high frequency oscillating circuit automatically reduces the supply power when the load impedance of the person is lowered. The high-frequency oscillating circuit includes an oscillating circuit producing an oscillation signal, a preamplifier boosting the oscillating circuit and an amplifier receiving the boosted oscillating circuit and outputting an amplified oscillating signal. Resonance circuit means are provided receiving the amplified oscilliating signal and outputting an oscillating signal with resonance at an operating frequency. An output amplifier is preferably connected to the resonance circuit receiving a signal output by the resonant circuit and outputting an amplified at an operating frequency. A high-frequency transformer is provided having a first and second winding and a center housing adjacent the second transformer winding having an aluminum cylinder for dissipating heat and reducing the load inductance of the first and second winding so as to increase the resonance frequency. The device includes an electrical current application element which is connected to the second winding of the transformer apparatus for transmitting high frequency current capacitively to the epidermis of the person being treated. Both an active electrode and a neutral return electrode are provided to avoid dispersion of electric current flow.

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First Claim