It is used for puncture and location of pulmonary nodules. Accurate location of pulmonary nodules is conducive to improving the proportion of accurate resection of pulmonary nodules and preserving healthy lung tissue to the maximum extent. During the operation, the positioning line can be gently pulled to expose the adjacent tissues, which is convenient for the operation and shortens the operation time. Nickel-titanium positioning needle is used for lung nodule puncture and positioning. Positioning needle is used for guiding, guiding or positioning in orthopedic surgery.