Ventilator ventilation is not terrible

  In modern clinical medicine, the ventilator, as an effective means to artificially replace the autonomous ventilation function, has been commonly used in various causes of respiratory failure, anesthesia breathing management during major operations, respiratory support treatment and emergency recovery. It occupies a very important position in the field of modern medicine. It is a vital medical device that can prevent and treat respiratory failure, reduce complications, and save and extend the lives of patients.
  Nowadays, ventilator has become an indispensable device in clinical treatment, and it is more and more widely used in the fields of first aid, anesthesia, ICU and respiratory therapy. The basic principle is: inspiratory action during autonomous ventilation produces negative pressure in the thoracic cavity, and negative pressure in the alveoli and airway occurs through passive expansion of the lung, which forms the pressure difference between the airway opening and the alveoli to complete the inhalation; the thorax and lung elasticity return after inhalation Retract, produce opposite pressure difference to complete exhalation. Therefore, normal breathing is due to the “active negative pressure difference” between the alveoli and the airway orifice generated by the body through the breathing action to complete the inhalation. After inhalation, the thoracic and lung elastic contraction produces a passive positive pressure difference between the alveoli and the airway orifice and exhales. To meet the needs of physiological ventilation. On the other hand, ventilator ventilation is driven by an external mechanical drive to generate a positive pressure difference between the airway orifice and the alveoli, while exhalation is when the external mechanical drive pressure is removed, the thorax and lung elastically retract to produce a passive positive pressure difference between the alveoli and the airway orifice and exhale. That is, there is a “passive positive pressure difference” in the breathing cycle to complete the breathing.
  Strictly speaking, the use of ventilator is only one type of oxygen therapy, mainly for patients who need to establish airway channels for oxygen, such as: respiratory failure, severe heart failure, major thoracic and abdominal surgery, severe head injury, etc. The following objectives can be achieved through mechanical ventilation: 1. To improve or relieve hypoxemia and carbon dioxide retention in patients with respiratory failure; 2. To ensure the safety of breathing during the use of drugs such as anesthesia, sedation and muscle relaxation; 3. To reduce respiratory muscle fatigue, Reduce the body’s oxygen consumption and relieve respiratory distress caused by hypoxia and carbon dioxide retention; 4. When multiple rib fractures occur, the intrathoracic pressure formed by the ventilator can help the ribs to fix and heal; 5. Help patients with heart failure reduce the amount of blood returned to the heart. Improve heart failure, etc.
  Although the ventilator plays an indispensable role in the treatment of many patients, it is still often heard that “the ventilator is a killing machine, and it can’t be taken off after it is used. It only costs money when you die.” In fact, in the application and development of the ventilator, there is indeed a phenomenon of unreasonable settings and adjustments at the beginning of use. Not only does it not help the condition of the disease, but as the time on the ventilator increases, later complications will increase. The more, such as: deep vein thrombosis, ventilator-related pneumonia, prolonged hospital stay, etc., but this is a smaller part after all. In recent years, as the setting parameters of the ventilator have become more and more accurate, the functions have become more and more complete, and the experience of using the ventilator has increased, and the side effects brought by it have become less and less. It has advantages in the rescue of critical illnesses. More and more prominent.
  At present, the performance of the new generation of ventilators has been greatly improved. For example, in exhalation and inhalation conversion, high-end machines have more than two switching methods; in ventilation, it strives to make the patient more comfortable, reduce the patient’s work of breathing, and the trigger sensitivity is getting higher and higher; the most important thing is the computer In the application of ventilator, the replacement of electronic control by microcomputer not only reduces the cost, but also has small errors, and the operation is more intuitive and convenient. The computer has a self-checking system that can self-check for faults and shorten the maintenance and repair time. Therefore, please don’t be afraid of the use of the ventilator anymore. When the doctor recommends the use of the ventilator, you must cooperate with the doctor to use it as soon as possible, so as to block or avoid the further development of the disease.