Bronchoscopy is an advanced method for diagnosis and treatment of respiratory and pulmonary diseases, which is widely used in clinic. Although it is only a tube, it has many functions. It can guide tracheal intubation and ventilator to carry out rescue treatment, suck pus and sputum, inject drugs, take tissue examination and observe bronchial morphology. The most prominent point is that many diseases hidden in the deep part of trachea, bronchus and lungs can be diagnosed and treated clearly without surface trauma.

The specific operation steps are as follows: first, inject anesthetic drugs into the nasal cavity of the patient, turn on the power supply and plug in the optical cable, and the light will be immediately transmitted into the mirror through the optical cable; Then a flexible thin tube is inserted from nostril to trachea until lung. Doctors can clearly observe tumors, foreign bodies or other things through the sharp tip of the lens during operation, and the lens tip can be bent up and down by 90 degrees, and the mirror body can be rotated left and right, which can be extended to different parts of the lung or trachea for detection and treatment. If there is a tumor in the lung, put the fine tweezers into the lung under the microscope to grab the small tumor, take the biopsy for histopathological analysis, make clear the nature of the tumor, and make an accurate judgment for the next treatment. If there is a foreign body in the respiratory tract or trachea, take it out completely with pliers. This instrument is especially suitable for emergency rescue of critically ill patients. Many elderly people suffocate, suffocate or have difficulty breathing because of sticky sputum blocking the airway. The aspirator next to the fiberoptic bronchoscope can suck up the sputum and do bacterial culture. Fiberoptic bronchoscopy can also find and treat complications of long-term tracheotomy or intubation, such as laryngeal injury, tracheal injury, bleeding, infection and so on.