When high-frequency power ultrasonic vibration acts on human tissues or organs, it will produce mixed effects of varying degrees of warming effect, mechanical effect, biochemical effect, tissue fluid cavitation effect, fragmentation effect and massage effect. Using some of the above-mentioned ultrasonic effects, medical instruments or equipment for different purposes can be developed, such as ultrasonic minimally invasive surgical hemostatic knives, bone knives, lithotripters, emulsification knives, suction knives, focused knives (HIFU), cutting knives, and debridement Knife, dental knife, drug guide, treatment device, tissue recovery device, etc.