The ventilator is a global division of labor of high-tech medical consumables, in this Wuhan pneumonia epidemic, it is saving countless lives, although there are reports that the death rate after ventilator use is still very high, then I would like to say, no need to be higher.
TL medical new blog article introduces a ventilator in detail and comprehensive. Introduction to everyone to learn.
In modern clinical medicine, the ventilator, as an effective means of energy artificial alternative autonomous ventilation function, has been widely used in respiratory failure caused by various reasons, anesthesia and respiratory management during major surgery, respiratory support therapy and emergency resuscitation It occupies a very important position in the field of modern medicine. The ventilator is a vital medical device that can prevent and treat respiratory failure, reduce complications, save and prolong the lives of patients.
TL medical new blog article introduces a ventilator in detail and comprehensive. Introduction to everyone to learn.
In modern clinical medicine, the ventilator, as an effective means of energy artificial alternative autonomous ventilation function, has been widely used in respiratory failure caused by various reasons, anesthesia and respiratory management during major surgery, respiratory support therapy and emergency resuscitation It occupies a very important position in the field of modern medicine. The ventilator is a vital medical device that can prevent and treat respiratory failure, reduce complications, save and prolong the lives of patients.
1. Classified by type of use or application
(1) Controlled mechanical ventilation (CMV)
1. Definition: When the patient’s spontaneous breathing weakens or disappears, it is completely generated by the mechanical ventilator to control and regulate the patient’s breathing.
2. Reduction: The automatic breathing caused by the disease disappears or weakens; when the automatic breathing is irregular or the frequency is too fast, and the mechanical ventilation cannot coordinate with the patient, the artificial breathing is suppressed or weakened by artificial methods.
(2). Assisted mechanical ventilation (AMV)
1. Definition: In the presence of patient breathing, the ventilator assists or enhances the patient’s spontaneous breathing. Various types of mechanical ventilation are mainly triggered by the patient’s inspiratory negative pressure or inspiratory airflow.
2. Reasonable: Although spontaneous breathing exists and is more regular, it cannot be used in patients with weakened spontaneous breathing but insufficient ventilation.
(1) Controlled mechanical ventilation (CMV)
1. Definition: When the patient’s spontaneous breathing weakens or disappears, it is completely generated by the mechanical ventilator to control and regulate the patient’s breathing.
2. Reduction: The automatic breathing caused by the disease disappears or weakens; when the automatic breathing is irregular or the frequency is too fast, and the mechanical ventilation cannot coordinate with the patient, the artificial breathing is suppressed or weakened by artificial methods.
(2). Assisted mechanical ventilation (AMV)
1. Definition: In the presence of patient breathing, the ventilator assists or enhances the patient’s spontaneous breathing. Various types of mechanical ventilation are mainly triggered by the patient’s inspiratory negative pressure or inspiratory airflow.
2. Reasonable: Although spontaneous breathing exists and is more regular, it cannot be used in patients with weakened spontaneous breathing but insufficient ventilation.
2. According to the use of mechanical ventilation
(1) Intrathoracic or airway compression type
(2) Chest shape
(1) Intrathoracic or airway compression type
(2) Chest shape
3. According to the switching mode of inhalation and exhalation
(1) Constant pressure type: After the pressure in the respiratory tract reaches a predetermined value, the ventilator opens the exhalation valve, and the thoracic and lungs are passively atrophy or exhaled by negative pressure. When the pressure in the airway continues to fall, the ventilator is again generated by positive pressure Airflow and cause inhalation.
(2) Constant volume type: The positive tidal volume is used to send the estimated tidal volume into the lungs. After reaching the expected tidal volume, the air supply is stopped and the exhaled state is entered.
(3) Timing type: supply air according to the pre-designed inhalation and expiration time. (4) Mixed type (multifunctional type).
(1) Constant pressure type: After the pressure in the respiratory tract reaches a predetermined value, the ventilator opens the exhalation valve, and the thoracic and lungs are passively atrophy or exhaled by negative pressure. When the pressure in the airway continues to fall, the ventilator is again generated by positive pressure Airflow and cause inhalation.
(2) Constant volume type: The positive tidal volume is used to send the estimated tidal volume into the lungs. After reaching the expected tidal volume, the air supply is stopped and the exhaled state is entered.
(3) Timing type: supply air according to the pre-designed inhalation and expiration time. (4) Mixed type (multifunctional type).
4. Supply air according to ventilation frequency
(1) High-frequency ventilation: ventilation frequency> 60 times / min.
1. Advantages: low airway pressure, low intrathoracic pressure, little interference to circulation, no need to close the airway.
2. Disadvantages: Not conducive to the removal of carbon dioxide.
3. Classification: high-frequency positive pressure ventilation, high-frequency jet ventilation, high-frequency oscillatory ventilation.
(2) Normal frequency ventilation: ventilation frequency <60 times / min.
5. According to whether there is a synchronization device or performance
(1) Synchronous ventilator: The inhalation of the patient’s spontaneous breathing can trigger the ventilator to supply air into the patient’s respiratory tract and produce inhalation action.
(2) Non-synchronized ventilator: The patient’s breathing or inspiratory negative pressure cannot trigger the ventilator to supply air, and is generally only used for patients with controlled mechanical ventilation.
6. Classification by applicable objects
(1) Baby ventilator
(2) Infant ventilator
(3) Adult ventilator
7. Classified by working principle
(1) Simple ventilator
(2) Membranous lung
(1) High-frequency ventilation: ventilation frequency> 60 times / min.
1. Advantages: low airway pressure, low intrathoracic pressure, little interference to circulation, no need to close the airway.
2. Disadvantages: Not conducive to the removal of carbon dioxide.
3. Classification: high-frequency positive pressure ventilation, high-frequency jet ventilation, high-frequency oscillatory ventilation.
(2) Normal frequency ventilation: ventilation frequency <60 times / min.
5. According to whether there is a synchronization device or performance
(1) Synchronous ventilator: The inhalation of the patient’s spontaneous breathing can trigger the ventilator to supply air into the patient’s respiratory tract and produce inhalation action.
(2) Non-synchronized ventilator: The patient’s breathing or inspiratory negative pressure cannot trigger the ventilator to supply air, and is generally only used for patients with controlled mechanical ventilation.
6. Classification by applicable objects
(1) Baby ventilator
(2) Infant ventilator
(3) Adult ventilator
7. Classified by working principle
(1) Simple ventilator
(2) Membranous lung
没有评论:
发表评论