Ventilators and oxygen concentrators are two fundamentally different medical devices. So, what is the difference between a home ventilator and an oxygen concentrator?
The difference between a home ventilator and an oxygen concentrator is that they work on different principles.
The principle of the home ventilator: the inspiratory action during spontaneous ventilation produces chest negative pressure, and the passive expansion of the lungs produces alveolar and airway negative pressure, thus forming the pressure difference between the airway opening and the alveoli to complete inhalation; after inhalation, the thorax and lungs The elastic retracts, creating an opposite pressure difference to complete exhalation. Therefore, normal breathing is due to the fact that the body completes inhalation through the breathing action to generate the "active negative pressure difference" between the alveoli and the airway opening. , to meet the needs of physiological ventilation.
The principle of the oxygen generator: the use of molecular sieve physical adsorption and desorption technology. The oxygen concentrator is filled with molecular sieves, which can absorb nitrogen in the air when pressurized, and the remaining unabsorbed oxygen is collected and purified to become high-purity oxygen. Oxygen concentrators can be divided into medical oxygen concentrators and household oxygen concentrators.
Can a ventilator and an oxygen concentrator be used together? Yes
Take chronic obstructive pulmonary disease as an example, when harmful particles/gas enter the lungs, a chronic inflammation of the airway will be formed, and the airway circulation will be affected. If not enough air is drawn into the lungs, hypoventilation occurs.
On the other hand, some people with COPD have damaged lung structures. Even if some air enters the lungs, the oxygen in it is difficult to diffuse into the blood, which will make the body hypoxic. At this time, the patient needs an oxygen generator for home oxygen therapy. For patients who clearly need long-term oxygen therapy, if the oxygen inhalation time does not reach 15 hours a day, the symptoms of hypoxia in the body will not be improved. A ventilator and an oxygen concentrator need to be used together.
Chronic obstructive pulmonary disease needs to be used with a ventilator and an oxygen generator
You must know that only when the oxygen concentrator and ventilator are used together can they exert their maximum effect.
Generally speaking, patients with chronic obstructive pulmonary disease, such as chronic bronchitis and emphysema, generally need to use an oxygen generator before using a ventilator. Because COPD develops from mild to severe. We need to solve two problems, one is carbon dioxide retention and the other is hypoxia, so both a ventilator and an oxygen generator are needed at this time. The interfaces of the oxygen generator and the ventilator are all standard, so even ventilators and oxygen generators of different brands can be connected together for use.
Due to the development characteristics of COPD, if the patient needs to use a ventilator, then an oxygen generator must be used, and a machine of more than 5L (five liters) must be used.
Because all the ventilator blows out is air, and the machine itself does not produce oxygen. When the ventilator and the oxygen generator are connected, the air in the ventilator will dilute the oxygen blown out by the oxygen generator, so the combination of the ventilator and the oxygen generator For use, the oxygen flow rate is best adjusted to 4-5L/min, so the oxygen generator used is preferably 5L or more.
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How to use home ventilator and oxygen concentrator together
There are several ways to use a ventilator and an oxygen generator together. Here I will introduce two common connection methods.
1，Connect the home ventilator and the oxygen generator through the oxygen tee
Materials needed: Oxygen Tee + Oxygen Tube
This method is recommended by me, because it is more convenient to use the oxygen tee to connect the oxygen concentrator and the ventilator, and at the same time, the connection does not affect the comfort of use. Another oxygen tee is connected to the oxygen concentrator and the ventilator, which can make the oxygen Mix more evenly. The figure below shows the oxygen tee connecting the oxygen generator and the ventilator.
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The link of the original oxygen tee:
The link of the original oxygen tube:
2, Connect the home ventilator and the oxygen generator through the oxygen mask
Materials required: Oxygen mask + Oxygen tube
This method is to connect the oxygen tube to the mask, which is one of the more commonly used methods at present. The advantage of this method is that there is no need for an additional oxygen tee, which is generally reserved on the mask.
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The link of the original oxygen mask:
The link of the original oxygen tube:
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Rerlated：How Well Do you Know, the Different Between the Oxygen Concentrator and the Breathing Machine Ventilator
