The pneumonia epidemic caused by the new coronavirus that broke out in early 2020 affects everyone in the world. The treatment of new coronary pneumonia is inseparable from the selfless efforts of medical staff, as well as medical equipment such as ventilators. So, how does the ventilator work? What are the difficulties in its manufacturing? What kind of existence is a ventilator made in China? Today, Pigeon Medical is going to tell you about the ventilator, a kind of professional medical equipment that has rarely been paid attention to before.
Before introducing the medical ventilator, let's briefly talk about the new coronavirus. After the new coronavirus infects the human body, it will first "attack" the respiratory tract and lung cells, causing inflammation. Inflammation itself is the performance of our body's immune system against viruses. In the bodies of patients with new coronary pneumonia, their lungs have been destroyed and their alveoli cannot perform normal functions. A large amount of liquid fills the interstitial spaces of the lungs, and oxygen cannot enter the blood. In the end, patients will be "drowned" in their own body fluids, and their lungs will be completely unrecognizable.
The principle of ventilator seems simple, but as an important medical equipment, it is closely related to human life support, and its technical content is actually very high. A qualified medical ventilator machine not only needs to produce pressure difference, but also needs to prevent barotraumas caused by over inflation as well as a reliable positive pressure maintaining mechanism. The alveoli are fragile. If the air pressure provided by the ventilator is too high, or the positive pressure in the alveoli is difficult to maintain, the alveoli are most likely to rupture or collapse, causing additional damage. In addition, the essence of the ventilator is to assist the patient's spontaneous breathing, and it needs to closely cooperate with the patient's breathing rhythm.
From the perspective of technical realization, the manufacturing of the ventilator is very easy. However, as a representative of medical equipment, the manufacturing of medical ventilators involves the supply of thousands of parts. In addition, since it is regarded as saving the lives of clinical patients, any manufacturing process of ventilators dare not have the slightest difference, which extremely tests the ability of respiratory medical equipment suppliers to refine their products.