Essential medical devices for human health monitoring--Fingertip pulse oximeter
Blood oxygen saturation (abbreviated as SpO2) is one of the important basic data in clinical medicine. The blood oxygen saturation refers to the percentage of the combined O2 volume in the total O2 volume that can be combined in the total blood volume.
This COVID-19 has given everyone a popular science device called "oximeter (finger clip type)". The symptoms of the new type of pneumonia are not obvious, but progress is particularly rapid, and the only change that can be clinically diagnosed is a sudden drop in blood oxygen concentration.
Although the accuracy of this type of equipment does not reach the medical level, daily monitoring is sufficient. At the same time, it can also monitor the maximum oxygen uptake, breathing and heart rate, and can synchronize data with the mobile APP.
Under what circumstances will it be impossible to breathe, lack of oxygen? It is generally believed that only patients suffer from hypoxia and lack of oxygen. This is actually a kind of misunderstanding.
Now the environmental pollution is getting more and more serious, especially people living in big cities, because the working environment is sealed, the air is not smooth, the rhythm of life is irregular, the body's immunity declines, causing serious diseases Dizziness, fatigue, unresponsiveness, and memory loss.
This type of person can be called "hypoxic person", and must also use a oximeter to detect oxygen content every day.
Why choose an oximeter to measure blood oxygen?
Blood oxygen level is a response to a person's overall physical fitness. The oxygen saturation level must be above 95% to be the normal level of the human body. So the question is coming, what is blood oxygen saturation? Simply put, blood oxygen saturation is the newly established indicator for measuring human health in the medical world.
The harm of hypoxia to human body
◆ The most obvious point is that dizziness is easy to be sleepy.
◆ If the long-term blood oxygen content is insufficient, the cerebral cortex will first receive the most direct injury, and there will be a series of serious consequences such as cardiac arrest, myocardial failure, and blood circulation failure.
While measuring blood oxygen was a very troublesome thing in the past, it is different now. Due to the high accuracy and non-invasive technique, the oximeter has also become the first choice for many elderly people.
There is no need to go to the hospital for blood collection, no need to suffer from skin and flesh, there is no possibility of cross-infection, and the tediousness of waiting in line for inspection is also eliminated.
Oximeters are generally divided into monitor, finger and pulse. However, pulse oximeters are relatively rare, and the monitoring is partial to medical treatment. After calculation, there is only a finger. Generally speaking, it is sufficient for individuals or families to buy finger oximeters, because finger is inherently personal.
The advantages of finger oximeter:
◆ The advantage is small size and easy to carry. The oximeter can be measured anytime and at any time, without time and place restrictions.
◆ You can also upload data to the network to form a long-term personal database to respond to data changes, which is very convenient.
◆ Secondly, low power consumption, finger oximeter can be used for a long time at home.
Measuring principle of finger oximeter
There are two different LED lights on the oximeter, which sends two beams of different wavelengths, and then measures the saturation of the bleeding oxygen according to the signal obtained by the sensor seeing through the human nail and photosensitive.
How to buy an oximeter
◆ It is best to choose a oximeter that uses the method of detecting the percentage of blood oxygen saturation to determine the current oxygen content of the human body. After all, the oximeter is a fast and convenient measurement tool, and accuracy is still very important.
◆ If it is a group of high-altitude workers and people with respiratory disorders, you should choose a finger oximeter with data transmission and storage. This type can upload data to the network for long-term storage and generate detailed reports of changes in blood oxygenation, which has certain auxiliary functions for seeking medical treatment and doctor diagnosis.
Oximeter operation, the following points should still be noted:
◆ First of all, in a quiet environment, users must not engage in any violent activities or use drugs and stimulants or other similar items.
◆ Secondly, the fingers should be cleaned before detection. If there is too much stolen goods, the projection of light will be greatly hindered. This will greatly affect the measurement results.
◆ Finally, put your fingers in the finger sleeves, the nails correspond to the light-emitting tube on the upper wall, and the ice ensures that the surroundings are tightly closed to avoid the interference of daily light. After taking it, wait slowly.
Suitable for the people:
1. People with vascular disease (coronary heart disease. Hypertension. Hyperlipidemia. Cerebral thrombosis ...)
There is lipid deposition in the blood vessel cavity, and the blood is not smooth. Difficult oxygen supply Cardiovascular and cerebrovascular patients, the blood is thick, and the coronary arteriosclerosis, the blood vessel cavity is narrow, so the blood supply is poor and the oxygen supply is difficult. The body is "hypoxic" every day. With long-term mild hypoxia, the functions of organs such as the heart and brain that consume large amounts of oxygen will gradually decline. Severe hypoxia will cause "myocardial infarction" and "cerebral infarction". If oxygen is not supplied in time for emergency treatment, it will cause sudden death. Therefore, cardiocerebrovascular patients use pulse blood oxygen to detect blood oxygen content for a long time, which can effectively prevent the occurrence of danger. If hypoxia occurs, oxygen is supplied at the first time, which greatly reduces the chance of disease onset.
People with respiratory diseases (asthma, bronchitis, old chronic bronchitis, pulmonary heart disease, chronic obstructive pulmonary disease ...)
Difficulty breathing leads to a limited amount of inhaled oxygen. Blood oxygenation of patients in the respiratory system is indeed very important. On the one hand, difficulty in breathing can lead to insufficient oxygen uptake; Difficulties occur, leading to hypoxia, causing different degrees of damage to the heart, lungs, brain and even kidneys. Therefore, using pulse oximeter to detect blood oxygen content, greatly reducing the incidence of respiratory tract.
2. Seniors over 60 years old
Physiological aging of heart and lung organs, insufficient oxygen uptake. Weak oxygen supply
The human body relies on blood to transmit oxygen. If there is less blood, there will naturally be less oxygen. Oxygen is low, and the physical condition naturally declines, so the elderly must use pulse blood oxygen to detect the blood oxygen content every day. Once the blood oxygen is lower than the warning level, oxygen needs to be replenished as soon as possible.
3. People who work more than 12 hours a day
Increased oxygen consumption in the brain, the oxygen supply cannot meet the consumption
The oxygen consumption of the brain accounts for 20% of the total body oxygen uptake. During the mental labor transition, the oxygen consumption of the brain will inevitably rise. However, the body's oxygen intake is limited, with more consumption and less intake. In addition to causing dizziness, fatigue, poor memory, slow response, etc., it will also cause serious damage to the brain's heart muscle. Even death from overwork, so people who study or work for 12 hours a day must use pulse oximetry to detect blood oxygen every day. Content, constantly monitor the health of blood oxygen, to ensure a healthy mind and brain.
4. Blood oxygen monitoring under extreme sports and high mountain hypoxic environment
Real-time blood oxygen monitoring of athletes helps to understand the blood circulation of athletes after a large amount of exercise to guide the formulation of athletes' exercise amount. Passengers traveling to Tibet by train on the Qinghai-Tibet Railway need reporters to detect blood oxygenation. Through their monitoring of blood oxygenation, they can detect the problems of oxygen or oxygen supply in the blood in advance to avoid cyanosis caused by high mountain reflection.
5. Long-term alcoholics
Every time the body completely decomposes one unit of alcohol to eventually turn into water and carbon dioxide, it needs three units of oxygen. Therefore, hypoxia is one of the important manifestations of drunkenness. However, people who have been drinking for a long time have developed a certain tolerance for alcohol and hypoxia, and they are basically undetectable when they are slightly drunk. Therefore, carry a oximeter with you to keep abreast of the physical condition and drunkenness of alcoholics to avoid the occurrence of alcoholism.
Evaluation of test results
According to medical analysis, the oxygen content in the blood is greater than or equal to 95, which is a normal index; the pulse rate between 60-100 times per minute is a normal index. If the values you detect do not meet the above two major indicators, please test 2-3 times at different time points to maintain continuous testing for 2-3 days. If the values still do not meet the standards, we suggest you go to the hospital for detailed consultation.