Difference between single-stage and two-stage ventilators

BiPAP (Bi-level Ventilator) is one of the most comprehensive dual-channel pressure ventilators, which can set higher inspiratory pressure and lower expiratory pressure respectively. When the patient inhales, the machine provides higher inspiratory pressure to keep the airway open, and provides lower expiratory pressure to ensure the patient's breathing smoothly when exhaling. The machine is synchronized with breathing, and the bi-level ventilator is suitable for all kinds of patients with sleep apnea syndrome and all patients who need non-invasive ventilation treatment, especially some critical diseases.

Single-stage ventilator refers to a ventilator with the same inspiratory pressure and expiratory pressure when patients inhale and exhale. Single-stage ventilator is divided into cpap ventilator and autocpap ventilator. The former is continuous positive pressure. The pressure of the latter will change according to the patient's posture, and the severity of obstruction will also change. At present, most single-stage ventilators are autocpap ventilators. Single level ventilator is suitable for common OSA. Namely patients with mild, moderate and severe obstructive sleep apnea syndrome.

Therefore, the bi-level ventilator is more suitable for treatment, and has a good therapeutic effect on moderate and mild respiratory disorders such as respiratory failure, cor pulmonale, chronic obstructive pulmonary disease, motor neurons, myasthenia gravis, etc., which can help these patients to carry out adjuvant treatment and recover as soon as possible. —————————————————————————————————————————————————————————— I am a little tail with a brush. I hope your answer can be adopted ~