The invention relates to a ventilation device for gastroscopy in an
anesthesia state, belongs to the technical field of
medical instruments, and solves the problems that in the prior art, a gastroscope access channel and an
oxygen supply channel are parallel, the occupied space of the oropharynx is large, placement is inconvenient,
oxygen supply cannot be effectively guaranteed, and
oral cavity tissue is prone to being damaged. The device comprises a protection tube unit and a ventilation
catheter, wherein the ventilation
catheter is arranged on the protection tube unit; the protective tube unit is used for being connected to the outer wall of a gastroscope in a sleeving mode during gastroscopy, and the outer wall of the gastroscope is prevented from
rubbing the
throat of a patient. High-flow
oxygen is input into the
respiratory tract of a patient through the gap between the protective tube unit and the gastroscope, so that the patient can keep effective
breathing. According to the ventilation device, an existing gastroscope access channel and an existing
oxygen supply channel which are arranged side by side are improved into the mode that only one
pipe is used for effective ventilation, the gastroscope body of the gastroscope and the
throat of a patient can be isolated at the same time, the occupied space of the oropharynx is small, implantation is convenient, and
tissue damage is reduced.