In clinical use, anesthesia mask is usually used for general anesthesia, mainly has two functions: to supply oxygen; Anesthesia is administered
General anesthesia includes intravenous anesthesia, gas inhalation anesthesia and intravenous inhalation combined anesthesia. Intravenous anesthesia refers to intravenous channel drug anesthesia; Inhaled gas anesthesia is a procedure in which a doctor puts a mask on a patient’s nose and mouth and inhales anesthetic. Intravenous inhalation anesthesia is the combination of the above two methods in the entire process of anesthesia. While adult anesthesia is usually administered intravenously, pediatric anesthesia is mostly administered with inhaled gas.
In the transitional stage between patient awareness and anesthesia, the induction stage of anesthesia, an anesthetic mask is used to provide high concentration oxygen for preoxygenation.
After intravenous anesthesia, patients can become unconscious and unable to breathe while medics intubate them to establish an airway. It is necessary to provide sufficient oxygen to the patient through the anesthesia mask to increase the oxygen content in the lungs, so as to provide sufficient time for the implementation of endotracheal intubation under general anesthesia and ensure the safety of the patient in the anesthesia induction stage.
After the airway is established and before the end of the operation, the mask is no longer simply used to supply oxygen during anesthesia maintenance, but is combined with inhaled anesthetics.
Therefore, at present, most general anesthesia is combined with intravenous inhalation anesthesia. Before anesthesia, the anesthesia mask is required to provide sufficient oxygen, while during surgery, the anesthesia mask is required to provide high concentration of oxygen and anesthetics, which can be breathed into the patient’s body to achieve the purpose of anesthesia administration
Post time: Nov-03-2022