I. The use of invasive ventilator
The clinical application of invasive ventilator is divided into three categories. The first category is mainly respiratory diseases, including pulmonary infection, pulmonary insufficiency, asthma, pulmonary edema, etc., which affect the gas exchange function in the lungs. At this time, the treatment of the ventilator mainly improves the gas exchange in the lungs, increases the oxygen concentration in the blood and removes carbon dioxide. The second category is mainly based on surgery, which is conducive to the recovery of anesthesia, maintains normal respiratory function, reduces respiratory muscle movement, and reduces oxygen consumption. The third category is sleep apnea, which solves the blockage of the upper airway through a certain pressure.
Specific example: Respiratory failure is a common clinical syndrome, and the resulting hypoxemia and/or hypercapnia seriously endanger the health and even life of patients. Modern mechanical ventilation technology (mainly positive pressure mechanical ventilation technology), as the most important means of clinical treatment of respiratory failure, has reduced the fatality rate of severe respiratory failure from more than 90% in the 1970s to about 40%, saving the lives of many patients , widely used in various clinical departments.
Second, the working principle of invasive ventilator
The working principle of the ventilator is an artificial The mechanical ventilation device is used to assist or control the patient’s spontaneous breathing movement, so as to achieve the function of gas exchange in the lungs, reduce the consumption of the human body, and facilitate the recovery of respiratory function.
3. Differences between invasive ventilators and non-invasive ventilators
1. Different medical device management categories
Non-invasive ventilators belong to the second category of medical devices, and invasive ventilators belong to the third category of medical devices.
2. The presence or absence of wound is different
From the patient’s point of view, tracheal intubation ventilation is invasive, while mask ventilation is non-invasive.
3. Whether the oxygen source is different?
The invasive ventilator needs an oxygen source to be used, and the non-invasive ventilator can be used without an oxygen source.
4. Whether there is a built-in turbine is different
Most invasive ventilators do not have built-in turbines, while all non-invasive ventilators have built-in turbines.
5. The scope of application is different
Although the invasive ventilator can be connected to the mask of the non-invasive ventilator, a platform is added in the middle of the non-invasive ventilator pipeline. The valve can also be used as an invasive ventilator. However, neither can replace the other, and has its own specific scope of adaptation.
