Fig. 2

The entire process for nasotracheal intubation using the Disposcope endoscope (a-f). (a) The wire tube body was bent along the radian of the nasal cavity. (b and c) The tracheal tube was inserted through the nasopharynx under suction catheter guidance until the placement depth reached 15 cm. (d-f) The suction catheter was withdrawn, and NTI was then performed under the guidance of the Disposcope endoscope