CT-guided percutaneous pulmonary nodule cutter and using method thereof

A percutaneous pulmonary nodule cutter comprises:

• an outer sheath puncture guide needle,
• a hollow sleeve disposed in the outer sheath puncture guide needle, and
• a mesh-shaped electromagnetic cutting system disposed in a space between the outer sheath puncture guide needle and the hollow sleeve;
• wherein a main body of the mesh-shaped electromagnetic cutting system is made of a polymer shape memory material into a tubular shape, the tubular shape is integrally formed with two meshes at a position facing towards a tip end of the outer sheath puncture guide needle, an inner side of the tubular shape is provided with two metal wires, first ends of the two metal wires are correspondingly disposed at ends of the two meshes and extend out of the two meshes, and second ends of the two metal wires are disposed outside another end of the outer sheath puncture guide needle and correspondingly connected to a positive pole and a negative pole of a power supply through an excitation switch.