The ultrasonic therapy instrument mainly uses the principle of ultrasound to penetrate deep into the tissue to produce the corresponding therapeutic effect, the role of the following: 1, the role of anti-inflammatory and pain relief, for local aseptic inflammation or acute red, swollen, hot, painful bacterial inflammation, can promote the absorption of its inflammatory factors, so as to relieve local pain. 2, swelling, promote the role of blood circulation, for soft tissue injury It can promote blood circulation in the case of local swelling and pain caused by even fracture, and speed up the decreasing and absorption of swelling. 3. It has the effect of softening the local scar tissue and softening and promoting the absorption of hard knots of fibrous tissue. 4. It can promote the blood circulation around the fracture and speed up the healing of fracture accordingly.