Whistling endoscopes are divided into bronchoscopes, thoracoscopes and mediastinoscopes From the original fiberoptic scopes to the present electronic scopes, the images are clearer and more stable. From a single bronchoscope, the development of thoracoscopy, mediastinoscopy. The family of bronchoscopes has gradually grown large, from ordinary bronchoscopes to ultrafine bronchoscopes, therapeutic bronchoscopes, fluorescent bronchoscopes, ultrasonic endoscopes, narrow-wave light bronchoscopes, and so on. Rigid bronchoscopes have also developed into television-assisted image systems with various operating holes at the end of the cannula to facilitate the connection of a roaring machine and various operations, and are known as “ventilation bronchoscopes,” and have also been improved with operating accessories. Thoracoscopy is also divided into medical and surgical procedures. Medical thoracoscopy is mainly used for the diagnosis and simple treatment of pleural cavity diseases and lung diseases, while surgical thoracoscopy is used for complex surgeries such as lobectomy and lymph node dissection. Mediastinoscopy is mainly used for the diagnosis and treatment of diseases within the mediastinum.