Abstract: The supply circuit for the electrodes comprises a series resonant filter and a parallel resonant filter, tuned to admit the fundamental signal of the input signal and simultaneously and exponentially attenuate the remaining harmonics by increasing the frequency thereof, in such a way that the input signal with harmonics only passes the fundamental signal without attenuation to the output, while the harmonics causing interferences are increasingly attenuated as their frequency is raised.

Abstract: The supply circuit for the electrodes comprises a series resonant filter and a parallel resonant filter, synthonised to admit the fundamental signal of the input signal and simultaneously and exponentially attenuate the remaining harmonics by increasing the frequency thereof, in such a way that the input signal with harmonics only passes the fundamental signal without attenuation to the output, while the harmonics causing interferences are increasingly attenuated as their frequency is raised.

Abstract: The invention relates to an electrode assembly for electrotherapy devices. The assembly has at least one stainless steel metallic electrode and at least one electrode which is also metallic and which is covered with an insulating layer. Both of said electrodes are removably and electrically connected to a handle support in such a way that they can be actuated individually or together. The active surface area of said electrode assembly is provided with a configuration which adapts to that of the area of the patient's body to be treated. Depending on the therapy being followed, the active face of the electrodes may be static on the area of the patient to be treated or moved in order to massage said area.

Abstract: A process for assessing and controlling the vascularization degree in portions of the human body, and a device for carrying out this process. The process comprises installing electroconductive electrodes in portions of the human body comprising the region whose vascularization is to be assessed; passing a high-frequency current between the electrodes; measuring and recording the flowing current values; and comparing the recorded through-flowing current values with standard values so as to be in a position to assess the vascularization. The device comprises two electrodes that while being connected to a high-frequency generator are applied to a measuring unit being fit to display the vascularization degree readout, said unit being also provided with a milliammeter that will measure the electric current flowing through.

Abstract: With these devices a relative H F (high frequency) electric current applicable to the human body is generated by means of an active electrode and a neutral or return electrode, whose electrodes are connected to the transformer of the output stage of the corresponding circuit. The invention is characterised by the coil of the output transformer having on the secondary winding, besides connections for the end terminals for connecting the neutral or return electrode and an active metallic electrode with electrically insulating cover, an intermediate terminal for connecting an active metallic electrode without insulating cover, whose terminal is furnished with an adequate very reduced impedance with an average which adapts only and exclusively to the different sizes of said metallic electrodes without metallic cover which are used.

Abstract: A relatively high-frequency electric current is generated, to be applied to the human body by means of one active and one passive electrode. It is distinct because, in order to raise the temperature of the human body in a local sense to 45.degree.-46.degree. C., it comprises a return electrode consisting of a metal plate and an active electrode, likewise metal, of smaller dimensions than the return electrode. The difference in dimensions between the two electrodes, placed facing on either side of the body region to be treated, brings about an increase in the impedances which, combined with the power frequency amplifier generator, brings about the required rise in temperature for treatment at local level.

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.