Home oxygen concentrator
There are many kinds of home oxygen concentrators on the market. Due to the different principles of oxygen production, the use characteristics of each home oxygen concentrator are also different. The principles of oxygen production of home oxygen concentrators are: 1. Molecular sieve principle; 2. Polymer oxygen-rich membrane principle; 3. Water electrolysis principle; 4. Chemical reaction oxygen production principle. The molecular sieve oxygen concentrator is the only mature oxygen concentrator with international and national standards.
Basic information
Name Oxygen concentrator
Power mode DC, AC
Use environment Car, home
Oxygen production method Physical oxygen production, molecular sieve oxygen production, electronic oxygen production
Technology PSA molecular sieve pressure swing adsorption
Applicable environment Home use
Noise level ≤45DB
Product features
The home oxygen concentrator is easy to use, portable and light, suitable for the majority of health care users. The car-mounted home dual-use type is suitable for home use and can also be used in the car using the car power supply. Oxygen is a colorless and odorless gas. It is an important substance for the human body to survive, and it is also an important substance for other animals and plants to survive. Without oxygen, the natural world will be lifeless and lifeless. Its importance is like water. It has a wide range of applications. All walks of life cannot do without oxygen, including medical care and beauty care.
Usage concept
Today's living standards are getting better and better. Everyone knows how to keep healthy. It's almost the New Year. Buy an oxygen concentrator for your family and care for their health. Now that living conditions are good, we should pay more attention to health care, such as buying an oxygen concentrator at home to keep the whole family healthy.
In order to improve the quality of life of workers with pneumoconiosis and other work-related injuries whose lung function is damaged and who have difficulty breathing and need long-term oxygen inhalation, Beijing has included 3-liter household oxygen concentrators in the scope of auxiliary equipment for workers with work-related injuries in United States.
Working principle
The working principle of household oxygen concentrators: using molecular sieve physical adsorption and desorption technology. The molecular sieve is filled in the oxygen concentrator, which can adsorb nitrogen in the air when pressurized, and the remaining unabsorbed oxygen is collected and purified to become high-purity oxygen. The molecular sieve releases the adsorbed nitrogen back into the ambient air during decompression, and can adsorb nitrogen and produce oxygen during the next pressurization. The whole process is a periodic dynamic cycle, and the molecular sieve is not consumed.
About oxygen inhalation
As people's living standards continue to improve and improve, the demand for health is gradually increasing, and oxygen inhalation will gradually become an important means of family and community rehabilitation. However, many patients and oxygen users do not have enough knowledge about oxygen inhalation, and oxygen therapy is not standardized. Therefore, who needs oxygen inhalation and how to inhale oxygen are issues that every patient and oxygen user must understand.
Hazards of hypoxia
Hazards of hypoxia to the human body and important manifestations. Generally speaking, hypoxia has the following hazards to the human body: When hypoxia occurs, the aerobic metabolic rate in the human body decreases, anaerobic glycolysis increases, and the metabolic efficiency of the body decreases; Long-term severe hypoxia can cause pulmonary vasoconstriction, resulting in pulmonary hypertension, increased burden on the right ventricle, and can cause cor pulmonale in the long run; Hypoxia can aggravate high blood pressure, increase the burden on the left heart, and even cause arrhythmia; Hypoxia stimulates the kidneys to produce erythropoietin, which increases the number of red blood cells in the body, increases blood viscosity, increases peripheral vascular resistance, increases the burden on the heart, causes or aggravates heart failure, and is also prone to induce cerebral thrombosis; Long-term hypoxia of the brain can produce a series of mental and neurological symptoms: such as sleep disorders, decreased intelligence, decreased memory, abnormal behavior, personality changes, etc. Usually, people have the following important manifestations of hypoxia: increased breathing rate, dyspnea, chest tightness, suffocation, cyanosis of lips and nail beds; accelerated heartbeat; due to the enhancement of anaerobic glycolysis, the level of lactic acid in the body increases, and there is often a feeling of weakness and fatigue; lack of concentration, decreased judgment and memory; sleep disorders at night, decreased sleep quality, daytime sleepiness, dizziness and headaches.
Effect of oxygen inhalation
Conditions for oxygen inhalation and advantages of oxygen inhalation Oxygen inhalation is sometimes called "oxygen therapy". Although it cannot cure all diseases, it does have obvious effects on some diseases. It can not only supply oxygen to hypoxic tissues, but also dissolve bubbles in the blood, stimulate wound healing, and have use value for diseases such as bubble embolism, carbon monoxide poisoning, cyanide poisoning, unhealed wounds, bone necrosis, soft tissue infection, and cerebral edema. Providing oxygen to premature infants and people with serious diseases or trauma under normal pressure is also an important measure to save lives. It can be said that not only patients with hypoxia need oxygen inhalation, but normal people also need to supplement a certain amount of oxygen in the natural environment. Such as patients with coronary heart disease, cor pulmonale, asthma, bronchitis and various chronic cardiovascular and cerebrovascular diseases, pregnant women, mental workers with intense work and study, primary school, junior high school, high school, university, graduate students and other test takers, residents of plateau hypoxic areas, tourists, etc.
Oxygen therapy effects
According to numerous literature reports, the main points can be summarized as follows: relieve nerve fatigue, relax the body and mind, maintain vigorous energy, and improve work efficiency; improve brain oxygen supply, regulate brain nervous system function, improve memory and thinking ability, and improve learning efficiency; reduce pollution and harm to the body in harsh environments; to a certain extent, it can delay aging and enhance metabolism; reduce hypoxemia and meet the needs of tissue metabolism; relieve pulmonary hypertension caused by hypoxia, reduce polycythemia, reduce blood viscosity, reduce the burden on the right ventricle, and delay the occurrence and development of cor pulmonale; oxygen inhalation can relieve bronchospasm, reduce dyspnea, and improve ventilation dysfunction; improve the patient's physical fitness and brain function, improve exercise endurance and quality of life; improve chronic obstructive pulmonary disease and prolong life; reduce the number of hospitalizations and save medical expenses; can reduce postoperative infection and stop vomiting, etc.
Generally, patients who meet any of the following three conditions should receive long-term home oxygen therapy: ① The clinical status is stable for 3 to 4 weeks, without acute bronchitis, lung inflammation, heart failure, and the results of arterial blood gas analysis for 2 consecutive weeks: arterial oxygen partial pressure PaO2 <60mmHg, blood oxygen saturation SaO2 <88%. ② The clinical status is stable, with at least 2 arterial blood gas analysis results: arterial oxygen partial pressure PaO2 is 55-59mmHg, and accompanied by secondary polycythemia, pulmonary hypertension or right heart failure of cor pulmonale, and PaO2 drops by 10mmHg after exercise. ③ PaO2>55mmHg during the day, but SaO2<75% at night or severe sleep apnea. It should be noted that oxygen therapy for patients with chronic obstructive pulmonary disease (COPD) has gradually been taken seriously. COPD patients have concurrent functional impairment and ventilation due to long-term ventilation dysfunction. The imbalance of blood flow ratio leads to lack of O2 and CO2 retention, especially more severe hypoxemia at night.
The harm of excessive oxygen inhalation
The negative effects of excessive oxygen inhalation As early as the mid-19th century, British scientist Paul Burt first discovered that if animals were allowed to breathe pure oxygen, they would be poisoned, and the same is true for humans. If humans are in a pure oxygen environment greater than 0.05 MPa (half an atmosphere), it will be toxic to all cells, and if they inhale for too long, "oxygen poisoning" may occur. The capillary barrier in the lungs is destroyed, leading to pulmonary edema, pulmonary congestion and bleeding, which seriously affects the respiratory function, and then causes hypoxia and damage to various organs. In a pure oxygen environment of 0.1 MPa (1 atmosphere), a person can only survive for 24 hours before pneumonia occurs, eventually leading to respiratory failure and suffocation. A person can stay in a high-pressure pure oxygen environment of 0.2 MPa (2 atmospheres) for a maximum of 1.5 to 2 hours. Exceeding this time will cause brain poisoning, disrupted life rhythm, mental confusion, and memory loss. If 0.3 MPa (3 atmospheres) or even higher oxygen is added, a person will experience brain cell degeneration and necrosis within a few minutes, convulsions and coma, leading to death.
In addition, excessive oxygen inhalation can also promote life aging. Oxygen entering the human body reacts with oxidase in cells to generate hydrogen peroxide, which then turns into lipofuscin. This lipofuscin is a harmful substance that accelerates cell aging. It accumulates in the myocardium, causing myocardial cell aging and heart function decline; accumulates on the blood vessel wall, causing blood vessel aging and hardening; accumulates in the liver, weakening liver function; accumulates in the brain, causing intelligence decline, memory decline, and people become demented; accumulates on the skin, forming age spots.
In contrast to hypoxia, when there is an excess of oxygen, that is, if high-concentration oxygen-rich air is inhaled for a long time (usually refers to an oxygen concentration greater than 40%, and medical experts recommend that the optimal oxygen concentration for long-term oxygen therapy is 22-35%), oxygen poisoning will occur. For example, mice will die if placed in pure oxygen for a few minutes; if healthy people continuously inhale pure oxygen with a partial pressure of 0.05Mpa for 20 to 30 minutes, they will have a sharp decline in metabolism, resulting in fatigue, headaches, and hand inflexibility and other oxygen poisoning symptoms.
Oxygen-enriched medical treatment
If for some reason, the normal amount of oxygen cannot be taken, it is necessary to take certain medical measures to inhale oxygen. For example, patients with tuberculosis, or those who have had part of their lungs removed for other reasons, those with reduced alveolar counts, emphysema, and those with breathing difficulties due to pneumoconiosis, etc., because the oxygen partial pressure in their arterial blood has dropped to 50 or 60 Torr, their lives are on the verge of crisis. In this case, it is generally ideal to supply 30-40% oxygen-enriched air. This is exactly the optimal concentration range of membrane oxygen enrichment.
Regarding the specific effects of oxygen inhalation medical treatment, taking patients with chronic closed lung disease as an example, there have been many cases that have confirmed that it has the effect of prolonging life. Compared with non-oxygen inhalation, the cumulative mortality rate of oxygen inhalation has dropped by about 60% on average, and the number of days in hospital can be significantly shortened. For example, the average hospitalization days for patients who do not inhale oxygen are at least 9 days and up to 40 days, while the average hospitalization days for patients who inhale oxygen are at least 1 day and up to 4 days, which is nearly 10 times shorter. At the same time, 24 hours of oxygen inhalation is better than 12 hours of oxygen inhalation, and the average cumulative mortality rate is reduced by about 1/3. When people do intense exercise, their pulse and breathing rate increase. From the mechanism of exercise, it is explained that nutrients and oxygen react in the tissues of the human body, and the energy obtained is used to promote muscle movement. At the same time, carbon dioxide and lactic acid are produced after oxygen is consumed. In order to replenish oxygen and discharge carbon dioxide, the pulse and breathing rate will increase significantly.
Oxygen inhalation equipment Oxygen inhalation equipment mainly includes membrane oxygen enrichment machine, PSA oxygen generator, chemical oxygen generator and deep cold oxygen generator. Among them, membrane oxygen enrichment machine is the most competitive and most applicable. Among them, the plate membrane component is only the size of A4 paper and the thickness is about 1cm. Among them, the weight of the personal membrane oxygen enrichment machine is less than 4 kilograms, which is very light and easy to carry. The more fashionable membrane oxygen bar air conditioner extracts air with an oxygen content of only 21% from the outside. After being treated with oxygen-enriched membrane, the oxygen content is rapidly increased to about 30%, which effectively solves the problems of dizziness, eye strain, and breathing problems caused by low oxygen in a confined space. In addition, the oxygen bar function and fresh air technology of the oxygen bar air conditioner can also operate independently. When not cooling or heating, the oxygen bar and fresh air function can be operated independently, which can not only keep the air in the room ventilated and clean, but also increase the oxygen content in the air, and act as an oxygen bar for independent use, effectively solving the contradiction between health and comfort when consumers use air conditioners under certain circumstances.
User groups
The oxygen concentrator is suitable for people who need oxygen therapy and oxygen health care:
1. People who are prone to hypoxia: middle-aged and elderly people, pregnant women, students who have been engaged in mental work for a long time, company employees, government officials, etc.;
2. Plateau hypoxia symptoms: high-altitude pulmonary edema, acute mountain sickness, chronic mountain sickness, plateau coma, plateau hypoxia, etc.;
3. People with poor immunity, heat stroke, gas poisoning, drug poisoning, etc.;
4. People who are in a state of hypermetabolism such as fever, convulsions, hyperthyroidism, and when using thyroid hormone and insulin;
5. People who use adrenocorticotropic hormone, adrenocorticotropic hormone, epinephrine, norepinephrine, etc.;
6. Lack of vitamins E, C and trace element selenium (reduced ability to remove excessive free radicals and poor antioxidant capacity);
7. Exposure to X-rays, etc.;
8. People who are insufficiently supplied with oxygen after strenuous exercise or excessive exercise fatigue, etc.;
9. Public places with poor ventilation (such as cinemas, gyms, computer rooms, casinos, etc.), crowded with people and polluted air;
10. Closed cars, air-conditioned rooms, underground shopping malls, air defense facilities, military underground command sites;
11. Mental workers with intense work and study, junior and senior high school students, and other people preparing for exams, etc.
Applicable groups
Students
The current situation of education in my country leads to greater pressure on students. Longer periods of study and thinking are the main causes of students' learning pressure. These can easily cause students to gradually lack oxygen, often causing nausea, dizziness, insomnia, bad mood, etc. At this time, safe and reasonable oxygen supplementation is necessary!
Oxygen is the basis for maintaining good brain memory function. During high-intensity learning, the brain load increases, and the oxygen consumption also increases dramatically. When brain cells do not get enough oxygen, the memory will become narrower and thinner, and the memory will also decline.
This will directly affect the learning and examination abilities of candidates, and will further increase the degree of psychological anxiety, thus forming a vicious circle. Nutrition can quickly restore blood oxygen concentration, enhance brain oxygen supply, and improve memory and thinking ability. It can quickly restore and improve brain function. Oxygen is the most basic source of life energy for brain cells.
Middle-aged and elderly people
As the elderly age, the body's resistance is also declining, and various functions can no longer absorb sufficient oxygen components for the body to absorb and apply, and the oxygen carrying capacity decreases! Especially after humans enter old age, the physiological functions of the human body degenerate, resulting in insufficient blood and oxygen supply to various tissues, especially the brain, heart, and lungs. Long-term hypoxia can cause a variety of elderly diseases, which will lead to hypoxia in the body. If not treated in time, long-term chronic hypoxia will form! And often we have many high-risk diseases caused by chronic hypoxia!
Frequent oxygen inhalation at home can prevent the occurrence of elderly diseases, and can delay aging, effectively eliminate symptoms such as chest tightness, shortness of breath, dizziness, and irritability, and can play an emergency role when angina pectoris, cerebral thrombosis, and stroke occur.
White-collar workers
If you are a white-collar worker, do you sometimes feel dizzy, chest tightness, or suddenly feel stars in your eyes when you stand up? Or suddenly your eyes become dark, you suffer from insomnia, memory loss, and lack of energy at work! If you have these symptoms, you should consider oxygen supplementation!
White-collar workers are in an air-conditioned environment for a long time, with doors and windows closed, polluted air, insufficient indoor oxygen content, and serious oxygen deficiency. In addition, they have irregular lives, heavy mental work, excessive pressure, and lack of a normal human biological clock, which causes disorders in various organs of the body. Hypoxia is the same as that of the elderly. If chronic hypoxia is formed for a long time, it will accelerate aging! Proper oxygen supplementation is very important for white-collar workers, which can improve work efficiency and mental state and relieve work pressure.
Pregnant women
According to surveys, the main reason for fetal death in the womb, premature death, mental retardation in children or newborns contracting diseases is hypoxia. Oxygen inhalation for pregnant women can increase the blood oxygen content of the mother, so that the fetus can get more oxygen, which is more conducive to the health of the mother and the growth of the fetus; the hospital has equipment to detect fetal hypoxia, but because the pregnant woman is at home, the doctor cannot find it in time, so by the time it is found, the best oxygen supplement period may have been missed! Pay special attention to the fetus's multiple fetal movements in a short period of time, or no fetal movement for a long time, which may be caused by hypoxia. Regular oxygen inhalation can prevent such situations from happening.
Special patients
The sick population is one of the groups that need oxygen supplementation the most, especially some people with cardiopulmonary diseases! Equipment can be used for auxiliary treatment to speed up the improvement of the condition! Oxygen inhalation can prevent the further development of the disease, improve the immunity of the whole body and respiratory tract, relieve shortness of breath symptoms, improve mental state, enhance activity ability, and significantly improve the quality of life; For patients with mild arteriosclerosis, liver and lung dysfunction, coronary heart disease, and cerebral stroke, regular oxygen inhalation can reduce the frequency of onset. Long-term oxygen therapy plays an important role in the complete recovery of the disease.
Oxygen therapy and oxygen health care
Function
Oxygen therapy and oxygen health care use oxygen supplementation to improve the physiological and biochemical internal environment of the human body and promote the benign cycle of metabolic processes, so as to achieve the purpose of treating diseases, alleviating symptoms, promoting rehabilitation, preventing lesions, and improving health. Clinical practice has proved that oxygen therapy, with its unique therapeutic mechanism, can effectively treat acute and chronic ischemic and hypoxic diseases in various clinical departments and secondary diseases caused by hypoxia. Appropriate oxygen inhalation can also improve microcirculation, reduce the load of the respiratory system required to maintain a certain alveolar gas oxygen partial pressure, and reduce the myocardial load required to maintain a certain arterial blood oxygen partial pressure. Therefore, in clinical medicine, preventive medicine, emergency medicine, geriatric medicine, rehabilitation and health care medicine, oxygen therapy and oxygen health care have irreplaceable important roles and broad development prospects.
When the human body is hypoxic or about to be hypoxic, oxygen is given to increase the oxygen concentration of the inhaled gas, increase the arterial blood oxygen content, and improve the oxygen supply to the tissues, which is collectively referred to as oxygen therapy. Generally speaking, oxygen therapy is used to correct pathological hypoxia as an auxiliary treatment for diseases; oxygen therapy is used for critically ill patients and victims of accidents; oxygen therapy is used to supplement physiological hypoxia for heavy mental workers, the elderly, pregnant women and patients in the recovery period of chronic diseases, as well as various environmental hypoxia, as a means of preventing hypoxia, which is called oxygen health care. Compared with other medical methods and health care methods, oxygen therapy and oxygen health care are active, direct, fast and safe means.
Features
Its characteristics are: oxygen inhalation directly increases the oxygen content in arterial blood, rather than acting on a certain part of the body to indirectly improve hypoxia; it only increases the oxygen that the body has been taking in since its birth, and there are no substances that are unfamiliar to the body, need to adapt to, and need to be analyzed; therefore, it only improves rather than changes the body's natural physiological state and biochemical environment; low-flow oxygen therapy and oxygen health care do not require special guidance, and the effect is fast and certain, beneficial and harmless. Oxygen therapy has the effect of timely relieving hypoxia symptoms, but it only has a partial and gradual effect on eliminating the causes of hypoxia. Oxygen therapy is the main means to correct physiological hypoxia and environmental hypoxia, and to prevent and treat diseases caused by environmental hypoxia. Oxygen therapy is an important auxiliary means to correct pathological hypoxia. Oxygen therapy is one of the important means for emergency rescue.
Therefore, anyone who needs oxygen therapy should adhere to a longer course of treatment, and only by perseverance can the effect be consolidated. While undergoing oxygen therapy, timely diagnosis of the cause of the disease must not be neglected; symptomatic medication must be taken as prescribed by the doctor; complications of hypoxia must not be neglected; aerobic exercise must be strengthened to enhance the ability to absorb, transport and utilize oxygen.
Working principle classification
Electronic oxygen generator
Electronic oxygen generator is more common in pharmacies. It uses the process of oxidation and reduction precipitation of oxygen in the air in the solution, so it will not produce dangerous hydrogen like electrolysis of water to produce oxygen. The whole machine runs relatively quietly, but this type of product has very strict requirements during transportation and use. It is never allowed to tilt or invert, otherwise the solution will flow into the oxygen supply tube and spray into the nasal cavity, causing serious damage to the user. At the same time, the oxygen production process is prone to produce other oxides, and the produced oxygen contains chemical substances. This type of oxygen production method consumes a lot of electricity.
Molecular sieve oxygen generator
Molecular sieve oxygen generator is an advanced gas separation technology. The physical method (PSA method) directly extracts oxygen from the air. It is ready for use, fresh and natural. The maximum oxygen production pressure is 0.2-0.3MPa (i.e. 2-3 kg), and there is no danger of high pressure explosion.
Chemical agent oxygen generator
It adopts a reasonable pharmaceutical formula and is used in specific occasions. It can indeed meet the urgent needs of some consumers. However, due to the simple equipment, cumbersome operation, high cost of use, each oxygen inhalation requires a certain amount of money, and it cannot be used continuously. Many defects are not suitable for home oxygen therapy.
Oxygen-enriched membrane oxygen generator
This oxygen generator adopts membrane oxygen production. Through the membrane, nitrogen molecules in the air are filtered to achieve a concentration of 30% of the outlet oxygen. It has the advantages of small size and low power consumption. However, the oxygen produced by this oxygen generator is 30% oxygen, which can be used for long-term oxygen therapy and health care, while the emergency treatment required in severe hypoxia can only use medical high-concentration oxygen.
Instructions
1. Install the main unit on the floor or hang it on the wall outdoors, and install the gas filter.
2. Nail the oxygen supply buckle plate on the wall or support as needed, and then hang the oxygen supply.
3. Connect the oxygen supply outlet interface with the oxygen supply pipe, connect the 12V power cord of the oxygen supply with the 12V power cord of the main unit. If multiple oxygen supplies are connected in series, just add a three-way connector and fix the pipeline with a wire buckle.
4. Plug the 110V/ 220V power cord of the main unit into the wall socket, and the red light of the oxygen supply will turn on.
5. Please add pure water to the specified position in the humidifier cup. Then install it on the oxygen outlet of the oxygen supply.
6. Please put the oxygen supply pipe on the oxygen outlet of the humidifier cup.
7. Press the oxygen supply start button, the green indicator light will light up, and the oxygen concentrator will start working.
8. Adjust the flow rate to the required position according to the doctor's instructions.
9. Hang the nasal cannula or wear the mask to breathe oxygen according to the instructions on the packaging of the oxygen mask or nasal cannula.
How to choose and purchase
The home oxygen concentrator is easy to use, portable and light, and suitable for the majority of health care users. But how to choose a suitable home oxygen concentrator? Here we talk about what to pay attention to when choosing a home oxygen concentrator?
Oxygen concentrator selection
1，Home oxygen concentrators generally use the molecular sieve oxygen production principle, so the adsorption performance and service life of the molecular sieve are very important, and its installation process is also very critical. When purchasing, you should choose an oxygen concentrator with a metal integrated structure and an automatic warning filling of the molecular sieve.
2. For patients with respiratory and cardiovascular diseases, the performance requirements of home oxygen concentrators are higher. When purchasing, you should choose a machine that can meet the standard medical indicators and provide oxygen for a long time.
3. Home oxygen concentrators are medical and health equipment, not health and fashion products, so there is no need to choose a deformed one with a fancy appearance and unsuitable appearance, but a machine with excellent structural performance, small size, and ideal heat dissipation.
4. An oxygen concentrator with ISO international and CE European quality system certification is an important guarantee for purchase. In addition, the time when the product is put on the market is also very important. It is best to choose a machine that has been on the market for more than two years.
5. When purchasing an oxygen concentrator, you should choose an oxygen concentrator/oxygen machine manufacturer with a long history and strong strength. After-sales maintenance and parts replacement of home oxygen concentrators are very important. Only manufacturers with a long brand can guarantee sustainable development and future maintenance services.
6. According to relevant research by the FDA, the amount of oxygen required by general users is approximately equivalent to 3 liters per minute at a concentration of 90%. It is recommended that users choose large-flow machines.
7. Remote control is not a necessary function. This function has certain medical risks. The actual absorption rate of oxygen inhalation microphones is very low and can be almost ignored.
8. It has a cumulative timing function. It can count the service life of the oxygen machine in order to provide objective and accurate data for long-term maintenance and service in the future. The international standard requires that the oxygen concentrator is equipped with a cumulative timer, which is also a reflection of the quality of the product. The service life of a good oxygen concentrator should be guaranteed to be tens of thousands of hours.
Precautions for use
1. Patients who purchase oxygen concentrators should read the instructions carefully before using them
2. Avoid open flames when using oxygen concentrators to avoid fires.
3. The oxygen concentrator should be placed stably, otherwise it will increase the noise of the oxygen concentrator.
4. The water level in the humidifier bottle should not be too high (the water level should be half of the bottle body), otherwise the water in the bottle will easily escape or enter the oxygen inhalation tube.
5. When the oxygen concentrator is not used for a long time, please cut off the power supply, pour out the water in the humidifier bottle, wipe the surface of the oxygen concentrator clean, cover it with a plastic cover, and store it in a dry place without sunlight.
6. When the oxygen concentrator is turned on, do not place the flow meter float at zero.
7. Pay special attention when filling the oxygen bag with the oxygen concentrator. After the oxygen bag is filled, be sure to unplug the oxygen bag cannula first, and then turn off the oxygen concentrator switch, otherwise it is easy to cause the water in the humidifier bottle to be sucked back into the oxygen concentrator under negative pressure, causing the oxygen concentrator to malfunction.
8. During transportation and storage, it is strictly forbidden to place it horizontally, inverted, wet or in direct sunlight!
With the emergence of portable oxygen supply devices and the development of home oxygen sources, some patients with chronic respiratory diseases and persistent hypoxemia can receive oxygen therapy at home. Home oxygen therapy generally uses oxygen cylinders and oxygen concentrators, which have a significant effect on improving patients' health, quality of life and exercise endurance.
Home oxygen therapy
Oxygen therapy methods
1. Oxygen should be inhaled, especially at night.
2. Scientifically choose the oxygen therapy time; for some patients with mild hypoxia, half an hour to one hour of oxygen therapy per day is enough; for patients with severe bronchitis, cardiovascular and cerebrovascular diseases and severe asthma, home oxygen therapy experts recommend more than 12 hours of oxygen therapy per day to ensure sufficient oxygen required daily.
3. Choose the appropriate oxygen flow rate; for general hypoxia patients, 2L~3L/minute oxygen flow rate can be selected for oxygen therapy; for patients with severe hypoxia, an oxygen flow rate of more than 5L/minute is more suitable. It is best to consult the relevant treating physician and choose the oxygen flow rate according to the actual situation of the patient.
4. The water in the humidification tank should be changed frequently; generally speaking, when the water in the humidification tank is slightly turbid, the humidification tank must be replaced and cleaned at this time. Home oxygen therapy experts recommend that the water in the humidification tank be changed and cleaned once a day to ensure the hygiene of oxygen use.
5. Nasal and nasal oxygen tubes should be cleaned and disinfected regularly; it is best to disinfect them every day and replace them with new ones every week. The combination of the third and fourth points can maximize the hygiene of oxygen inhalation.
6. Pay attention to safety measures during oxygen therapy; because oxygen is combustible, it should be kept away from open flames when inhaling oxygen, and should be placed in a cool and ventilated place when not using a home oxygen concentrator.
Precautions for oxygen therapy
(1) Closely observe the effect of oxygen therapy. If symptoms such as dyspnea are alleviated or relieved, and the heartbeat is normal or close to normal, it indicates that oxygen therapy is effective. Otherwise, the cause should be found and treated in time.
(2) High-concentration oxygen supply should not be used for too long. It is generally believed that oxygen poisoning may occur if the oxygen concentration is >60% for more than 24 hours.
(3) Giving high-concentration oxygen to patients with acute exacerbation of chronic obstructive pulmonary disease may cause respiratory depression and worsen the condition. Generally, controlled (i.e., low-concentration continuous) oxygen inhalation is appropriate.
(4) Pay attention to heating and humidification during oxygen therapy. Maintaining a temperature of 37°C and a humidity of 95% to 100% in the respiratory tract is a necessary condition for the normal clearance function of the mucociliary system. Therefore, inhaled oxygen should be passed through a humidifier bottle and necessary heating devices to prevent the inhalation of dry and cold oxygen from irritating and damaging the airway mucosa, causing sputum to dry up and affecting the "scavenger" function of the cilia.
(5) Prevent contamination and catheter blockage. Nasal congestion, oxygen delivery catheter, humidification and heating device, ventilator pipeline system, etc. should be replaced and cleaned and disinfected regularly to prevent cross infection. Oxygen inhalation catheters and nasal congestion should be checked at any time for blockage by secretions and replaced in time to ensure effective and safe oxygen therapy.
Oxygen is very important to the human body. Healthy people breathe air naturally in normal conditions and use the oxygen in it to maintain metabolic needs. When sick or in certain abnormal conditions, oxygen should be inhaled at home or in clinics or hospitals through certain equipment.
Oxygen inhalation method
(1) Nasal congestion and nasal catheter oxygen inhalation method: This oxygen inhalation method has simple equipment and is easy to use. There are two types of nasal plugging: single plugging and double plugging. In the single plugging method, a suitable model is selected and plugged into the nasal vestibule on one side, and it is in close contact with the nasal cavity (the other nostril is open). When inhaling, only oxygen enters, so the oxygen concentration is relatively stable. In the double plugging method, two relatively small nasal plugs are placed in both nostrils at the same time, leaving a gap around the nasal plugs so that air can be breathed in at the same time. The patient is more comfortable, but the oxygen concentration is not stable enough. The nasal cannula method is to insert a catheter (commonly used as a urinary catheter) through the nostrils into the back of the soft palate at the top of the nasal cavity. The oxygen concentration is constant, but it will cause discomfort over time and is easily blocked by secretions. Nasal plugging and nasal cannula oxygen inhalation methods are generally only suitable for low-flow oxygen supply. If the flow rate is relatively large, the flow rate and impact force will be too high for people to tolerate, and it is also easy to cause dry airway mucosa.
(2) Mask oxygen inhalation method: It can be divided into open and closed mask methods. The open method is to place the mask 1 to 3 cm away from the patient's mouth and nose. It is suitable for children and may not cause any discomfort. The closed mask method is to cover the mask tightly over the mouth and nose and fix it with an elastic band. It is suitable for people with severe hypoxia. The oxygen concentration can reach 40% to 50%, which feels more comfortable and has no mucosal irritation or dry blowing feeling. However, the oxygen consumption is relatively large, and there are disadvantages such as inconvenience in eating and expectoration.
(3) Transtracheal catheter oxygen therapy: It is a method of supplying oxygen by inserting a thin catheter into the trachea through the nasal cavity, also known as intratracheal oxygen therapy. It is mainly suitable for chronic respiratory failure caused by chronic obstructive pulmonary disease and pulmonary interstitial fibrosis, which requires long-term oxygen inhalation and has poor effect on general oxygen therapy. Since the catheter is used to directly supply oxygen to the trachea, the efficacy can be significantly improved. Only a lower flow rate of oxygen supply is required to achieve a higher effect, and the oxygen consumption is very small.
(4) Electronic pulse oxygen therapy: It is a new method. It can automatically deliver oxygen during the inhalation period through an electronic pulse device, and automatically stop delivering oxygen during the exhalation period. This is more in line with the physiological state of breathing and greatly saves oxygen. It is suitable for nasal congestion, nasal catheter and intratracheal oxygen therapy.
(5) Mechanical ventilation oxygen supply method: when using various artificial ventilators for mechanical ventilation, oxygen therapy is performed using the oxygen supply device on the ventilator. The oxygen supply concentration (21% to 100%) can be adjusted according to the condition. The oxygen source for oxygen therapy is generally an oxygen cylinder, and a pressure gauge is installed to indicate the oxygen storage volume in the cylinder. A flow meter is installed during oxygen supply to adjust the oxygen flow as needed.
Maintenance method
1. Check the oxygen filter and humidification water tank of the small household oxygen concentrator regularly, replace the air filter regularly, and clean the dirt in the humidification water tank. This is conducive to the cleanliness of oxygen, especially for friends who directly inhale oxygen, the humidification water tank must be kept clean.
2. Check the compressor operation system of the small household oxygen concentrator regularly to see if there is any leakage. If there is a leak, it must be repaired in time, otherwise the pressure of the oxygen outlet will not reach the required level, thus affecting the oxygen production and oxygen inhalation effect.
3. Check the air drying system of the small household oxygen concentrator. Check the dryer and oil-water separator to clean the impurities inside. The method is to blow into the oxygen outlet with your mouth first to increase the internal pressure. Then open the oxygen outlet valve to exhaust. Repeat the operation several times to remove the impurities inside.
4. Check whether the oxygen inhalation tube and the oxygen outlet interface of the small household oxygen concentrator are aging and leaking. If there is a leak, it will reduce the oxygen outlet pressure and affect the oxygen inhalation effect. It is best to replace the oxygen inhalation tube regularly.
5. Check the atomizer of the small household oxygen concentrator to ensure that there is enough water in it. Otherwise, the oxygen produced will be too dry, which will have a bad effect on people who inhale dry air for a long time or are sensitive to the respiratory tract. It is best to change the water in the atomizer regularly to ensure that it is clean and sufficient.
