The key to the operation of the balloon mask ventilation technology was to close and open the airway.
If the ventilation was not satisfactory for a single person, pressure-based ventilation with two people should be considered, and the technique should be used to open the airway, oropedia, or nasophobia at the same time. This technique was mainly used when the patient was at risk of inhaling by mistake or countercurrent. At the same time, it would also apply pressure on the cricoid cartilage.
Even Laryngeal Mirrors and light stick guidance techniques were used, and the basic operation of a single-person Ball Mask had been ruled out by Zheng Ren and was not even considered.
However, when the double bag mask provided low tidal volume and high-pressure oxygen supply, he found that the patient's chest did not undulate very obviously.
"Laryngeal mask mask!" Zheng Ren roared in a deep voice.
