Apparatus for hyperthermic treatment

Apparatus for hyperthermic treatment comprising high-frequency generating means connected to electrodes capable of being attached to a patient wherein the said generating means comprise at least two generators operating at different frequencies, the values of which are sufficiently distant from each to prevent the generators from mutually driving or interfering with one another's frequencies, the operating frequencies of the generators having values such that they do not constitute a harmonic frequency of one and the same fundamental frequency, and wherein the said generators comprise two outputs each linked to one electrode, at least one of the said outputs of at least one generator being connected to the said electrode by means of a bandpass filter, the resonance frequency of the said filter corresponding substantially to the operating frequency of the generator to which it is connected.