Patent ID: 6584358
Filing Date: 2003-06-24
Classification: A61N

Abstract:
An electro-therapy apparatus for providing therapeutic electric current to a treatment site of a patient comprising:a signal generator forming first and second signals having a frequency difference of between 1 Hz and 250 Hz, each signal having a frequency at least about 1 KHz; at least one feed electrode connected to the signal generator and adapted to output a therapeutic signal to at least one feed site on or beneath a first epidermal or mucous membrane surface of the patient; and at least one return electrode adapted to be positioned on or beneath a second epidermal or mucous membrane surface of the patient, locally to said treatment site; wherein: the first and second signals are sinusoidal alternating current signals; the therapeutic signal is formed from said first and second signals prior to being output to said at least one feed site; and only a single feed electrode is adapted to output said therapeutic signal.