Patent ID: 6826429
Filing Date: 2004-11-30
Classification: A61N

Abstract:
An interferential current treatment apparatus comprising:a first electrical circuit having a first current source, a first variable base frequency, and a first pair of treatment electrodes, wherein the first pair of treatment electrodes are configured for selective coupling to opposing sides of a patient's body with respect to a spinal column of the patient to allow the first electrical circuit to interact with and stimulate a nerve span of the patient's spinal column; a second electrical circuit having a second current source, a second variable base frequency, and a second pair of treatment electrodes, wherein the second pair of treatment electrodes are configured for selective coupling to opposing sides of the patient's body with respect to the spinal column of the patient to allow the second electrical circuit to interact with and stimulate the nerve span of the patient's spinal column, and wherein the second base frequency is within 200 Hertz of the first base frequency when attached to the patient, wherein a first interferential beat frequency is established between the first and second electrical circuits; a third electrical circuit having a third current source, a third variable base frequency, and a third pair of treatment electrodes, wherein the third pair of treatment electrodes are configured for selective coupling to opposing sides of the patient's body with respect to the spinal column of the patient to allow the third electrical circuit to interact with and stimulate the nerve span of the patient's spinal column, and wherein the third base frequency is greater than the first base frequency by at least 500 Hz when attached to the patient; and a fourth electrical circuit having a fourth current source, a fourth variable base frequency, and a fourth beat frequency, and a fourth pair of treatment electrodes, wherein the fourth pair of treatment electrodes are configured for selective coupling to opposing sides of the patient's body with respect to the spinal column of the patient to allow the fourth electrical circuit to interact with and stimulate the nerve span of the patient's spinal column, and wherein the fourth base frequency is no more than 200 Hertz greater than the third base frequency when attached to a patient, wherein a second interferential beat frequency is established between the third and fourth electrical circuits.