Commonly used ventilators are categorized into ____ type, ____ type and hybrid type. The introduction is as follows:
Commonly used ventilators are categorized into pressure-controlled, flow-controlled and hybrid types.
1. Pressure-controlled ventilator: This type of ventilator controls the patient's breathing by regulating airway pressure. It usually uses a device called a pressure-limiting valve to limit airway pressure to prevent excessive pressure from harming the patient. Pressure-controlled ventilators are used for patients who need higher pressure support, such as those in intensive care units or those with severe lung disease.
2. Flow-controlled ventilators: This type of ventilator controls the patient's breathing by regulating the rate of airflow. It usually uses a device called a flow restriction valve to limit the rate of airflow to ensure that the patient receives an adequate supply of oxygen. Flow-controlled ventilators are used for patients who need lower pressure support, such as those with mild to moderate lung disease or those who need to be ventilated for extended periods of time.
3. Hybrid ventilator: This type of ventilator combines the features of pressure control and flow control to automatically adjust airway pressure and airflow rate according to the patient's needs. It typically uses an algorithm called pressure-time product (PTP) or volume guarantee (VG) to ensure that the patient receives an adequate supply of oxygen. Hybrid ventilators are used for a variety of types of patients, including those in intensive care units, those who require prolonged ventilation, and those with different types of lung disease.
Besides these three common types of ventilators, there are other special types of ventilators such as bi-level ventilators, high-frequency ventilators, and non-invasive ventilators. These ventilators play an important role in different clinical scenarios and provide effective respiratory support and treatment for patients.
In short, ventilators are an important medical device used to help patients breathe. Different types of ventilators are used for different patients and clinical situations, and doctors will choose the right type of ventilator to provide the best possible treatment according to the patient's specific situation.