Microwave ablation needle

The invention relates to the field of microwave ablation needles, and in particular relates to a microwave ablation needle. The ablation position of the ultrasonic microwave ablation needle can be adjusted. The microwave ablation needle comprises an outer frame assembly, a reversing assembly, a power clutch assembly, a length extension assembly, a switching assembly and a tensioning assembly, a third tensioning belt wheel drives a first bevel gear shaft to rotate, then the first bevel gear shaft drives a first bevel gear to rotate, then the first bevel gear drives a bevel gear disc to rotate, then the bevel gear disc drives a bevel gear disc sliding groove to move, the bevel gear disc sliding groove drives a bevel gear disc slider to move, meanwhile, the bevel gear disc slider slides on a second extension frame, and meanwhile, the bevel gear disc slider makes contact with a microwave device of the KYB type, so that the microwave device of the KYB type is fixed. 本发明涉及微波消融针领域，更具体的说是一种微波消融针。可以实现对超声微波消融针的消融位置进行调节