The utility model provides a nasal
oxygen cannula which comprises a nasal frame tube, a spacer is arranged in the nasal frame tube, the spacer divides an inner cavity of the nasal frame tube into an
oxygen supply cavity and a monitoring cavity which are not communicated, the outer end of the
oxygen supply cavity is connected with an
oxygen supply extension tube, and the outer end of the monitoring cavity is connected with a monitoring connecting tube; an
oxygen supply nasal cannula is arranged on one side, corresponding to the nostrils of the
human body, of the
oxygen supply cavity, and an oxygen outlet hole is formed in the position, close to the oxygen supply nasal cannula, of the
cavity wall of the oxygen supply cavity; a monitoring
nose cannula is arranged on one side, corresponding to the nostrils of the
human body, of the monitoring cavity, a monitoring extension tube is connected beside the monitoring cavity, and the outer end of the monitoring extension tube is communicated with an
oral cavity monitoring head. In the nasal oxygen
tube structure, the oxygen outlet hole is formed in the oxygen supply cavity of the nasal frame tube close to the oxygen supply
nasal intubation tube, and the oxygen outlet hole and the oxygen supply
nasal intubation tube supply oxygen to a patient at the same time, so that the oxygen flow of the patient is kept, and the oxygen supply pressure of single-hole oxygen supply, namely oxygen supply by the oxygen supply
nasal intubation tube independently is reduced; the problem that a patient feels uncomfortable due to the fact that single-hole oxygen supply pressure impacts nasal mucosa is solved.