Hai Fu Knife treatment is a high-intensity focused ultrasound tumor treatment system, a treatment method that uses ultrasound focus to remove tumors non-invasively. Ultrasound has good tissue penetration and other physical characteristics. Ultrasound ablation therapy makes use of these characteristics of ultrasound to gather ultrasound waves at the lesion to be removed in the body, and makes use of the high temperature and cavitation effects generated by ultrasound waves at the focal point to destroy the tissue structure of the tumor in the target area without affecting the tissues outside of the target area, so as to achieve non-invasive removal of solid tumors. Ultrasound ablation therapy is a non-invasive treatment technology, which reduces the risk of spreading and metastasis of tumors caused by traditional surgical operations, and can significantly reduce the complications of tumor patients during and after surgery. It is recommended to consult a professional doctor before treatment and standardize the diagnosis and treatment.