Cathode RF tumor therapeutic machine

The utility model relates to a medical device, particularly a tumor therapeutic machine which is a cold pole radio frequency tumor therapeutic machine. The utility model comprises a host computer, a displayer, a radio frequency generator, a circulation pump, a refrigerating device and a therapy needle, wherein the host computer, the display, the radio frequency generator, the circulation pump and the refrigerating device are electrically connected. The refrigerating device and the therapy needle are respectively connected with the circulation pump through a pipeline, and the therapy needle is electrically connected with the radio frequency generator. Because the utility model adopts the host computer to control the radio frequency generator, the circulation pump and the refrigerating device to lead operation to be simple. In addition, the host computer can control working time, radio frequency output power and the temperature of a radio frequency needle. Then, ablation range is directly controlled. Because the radio frequency needle directly act on the inner part of a tumor, ablation is realized from the inner part of the tumor to the outer side of the tumor, so influence on other positions is small. Then, complicating diseases are reduced.