Sleep ventilators were invented in 1981. During nighttime sleep, compressed air is delivered into the patient's airway through a comfortable nasal mask, and the appropriate pressure is adjusted to assist the patient's breathing, which prevents the airway from collapsing, has few side effects, is easy to apply, and has an efficiency rate of more than 90%.
Generalization of the ventilator
In modern clinical medicine, the ventilator as an effective means of artificially replacing the function of voluntary ventilation, has been widely used in respiratory failure due to various causes, anesthesia and respiratory management during major surgery, respiratory support therapy and emergency resuscitation, occupies a very important position in the field of modern medicine.
The ventilator is a medical device that can play a crucial role in preventing and treating respiratory failure, reducing complications, and saving and prolonging patients' lives.
The end of inhalation breath holding at the end of inhalation and the beginning of exhalation before the ventilator does not supply air, the exhalation valve continues to close for a period of time in order to maintain the pressure in the lungs at a certain level, the clinical application of prolonged inhalation time, is conducive to the distribution of gases, is conducive to gas dispersion is conducive to the distribution of aerosolized inhalation of medicines in the lungs and dispersion of the 3. can increase the burden on the heart.
Positive end-expiratory pressure ventilation 1. at the end of expiration, the airway pressure does not drop not 0 still maintain a certain level of positive pressure, clinical application: for hypoxemia caused by intrapulmonary shunt, such as ARDS 3. PEEP corrects the mechanism of ARDS, reduces alveolar atrophy, reduces intrapulmonary shunt, corrects hypoxemia caused by intrapulmonary shunt, reduces alveolar atrophy, increases the FRC, and favors the adequate gas exchange on both sides of the alveoli-capillaries.
Elevated alveolar pressure increases the partial pressure of alveolar arterial oxygen, which is conducive to oxygen diffusion to the capillaries, the alveoli are always in an inflated state, which can increase the diffusion area of the alveoli, and increased inflation of the alveoli increases the compliance of the lungs, and also reduces the respiratory work.