In the most traditional surgery for pulmonary nodules it is necessary to open the chest and remove the nodule after touching it by hand. Usually an open-chest operation is done, but later, due to the advent of thoracoscopy, pulmonary nodules gradually evolved to require only holes. The most traditional surgery for pulmonary nodules requires four holes, just like the usual operation with the hand, one hole for the eye or thoracoscope, one hole for the left-hand instruments, one empty hole for the right-hand instruments, and another auxiliary hole for the auxiliary assistant to operate. After careful research and design, doctors found that many holes in between can be slowly reduced through the design of surgical instruments and the design and progress of surgical methods, so that so far the surgery of pulmonary nodules only needs to open one hole, through which a high-definition fine thoracoscope is inserted into the chest cavity, the left-hand and right-hand instruments, through a certain design of special instruments to replace the other two holes The left and right hand instruments are designed to replace the other two holes. The instruments can be crossed and angled, and the fourth hole, the auxiliary hole, can usually be omitted. Therefore, currently only one hole is required for surgery of pulmonary nodules.