A nerve stimulation device includes a first waveform generator adapted to
generate a first waveform having a first frequency capable of stimulating
nerves within a dermatome, a second waveform generator adapted to
generate a first carrier waveform having a second frequency capable of
passing through tissue of a mammal, and a third waveform generator
adapted to generate a second carrier waveform having a third frequency
different than the second frequency and being capable of passing through
the tissue of the mammal. The device includes a modulator electrically
coupled to the first, second and third waveform generators and adapted to
modulate the first waveform, the first carrier waveform, and the second
carrier waveform to generate a modulated signal package capable of
stimulating the nerves at different depths within the dermatome. The
device also has an electrode electrically coupled to the modulator for
applying the modulated waveform to the dermatomic region.