Life-saving ventilator
A non-invasive ventilator is a device that provides respiratory support to patients through nasal masks, oronasal masks or full-face masks. You can often see them in various TV dramas.
Modern non-invasive ventilator mouth and nose mask
The female protagonist wearing a breathing mask looks fragile and pitiful but elegant, but it was more than 100 years earlier, and this effect was not the case. The positive pressure ventilation equipment at that time was the "reverse operation" of the negative pressure ventilation equipment. The whole head will be packed in a big box.
More pathetic than putting your head in a cabinet is invasive positive pressure ventilation.
Although a non-invasive ventilator is good, it will not work well. When the patient’s respiratory tract secretions are too much, it will block the "channel" of positive pressure ventilation. When the patient cannot clear the upper respiratory tract secretions on their own, invasive positive pressure ventilation is needed to help.
There are two types of invasive positive pressure ventilation. The first is tracheal intubation, which is used by patients with severe new coronary pneumonia.
Because the new coronavirus causes exudates in the patients' lungs, blocks the alveoli, impairs the lung ventilation and aspiration function, and also causes the patients' lung tissue to become fibrotic, hard and brittle, and cause breathing difficulties. When the non-invasive ventilator cannot meet the patient's ventilation and oxygen supply needs, the tracheal intubation will bring the patient a line of life.
Tracheal intubation cannot save all patients. For patients with laryngeal obstruction or retention of lower respiratory tract secretions, tracheotomy (the method recommended by Ibsen above) is the final trump card.
After tracheotomy, it can clear the secretions of the lower respiratory tract and improve the gas exchange in the lungs. Compared with the tracheotomy, the tracheotomy can reduce the damage of the larynx, preserve the glottis function, and facilitate oral care, but it will also Leave an "artificial airway" for the patient.
Although invasive positive pressure ventilation can save lives, it also has hidden dangers.
