Patent ID: 7542797

Claim:
An electrotherapy apparatus using low and intermediate frequencies, comprising: a vacuum cup to be attached to a human body; a housing connected to an upper portion of the vacuum cup; a connection member adapted to connect the vacuum cup and the housing; a frequency generator on a printed circuit board that is included in the housing and includes circuits, including a sensor and a microcomputer; negative and positive electrode plates contained in the vacuum cup to be supported by springs, and adapted to come in contact with the human body while being operated to ascend and descend; connection terminals connected to the frequency generator and the springs to output frequencies to the negative and positive electrode plates; a connection terminal located in the vacuum cup to be connected to the sensor so as to operate the frequency generator during treatment; and a remote controller adapted to wirelessly control the frequency generator, wherein the negative and positive electrode plates are connected to each other through an insulation plate, and include fixation protrusions on which the springs are fixed, respectively and wherein the frequency generator comprises: a receiving unit receiving a control signal of the remote controller; a current detection unit detecting the magnitude of currents and giving notice that the negative and positive electrode plates are detached from the human body; a microcomputer cutting off power in response to a signal of the current detection unit, and controlling output frequency and voltage in response to a control signal of the receiving unit; a frequency adjustment unit amplifying the low and intermediate frequencies, which are modulated and output in such a way that the intermediate frequency is carried on the low frequency, according to an internal program of the microcomputer; and a frequency output unit outputting the low and intermediate frequencies amplified in the frequency adjustment unit, wherein: the frequency output unit allows the low and intermediate frequencies, which are boosted to a voltage of 250 V while passing through the frequency adjustment unit, to be alternately output while passing through a flip-flop circuit composed of transistors and resistors, and the alternately output low and intermediate frequencies pass through output transistors, and then are alternately supplied to the negative and positive electrode plates.