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How popular is the oximeter recently? China metal milling service Manufacturer
Take a certain brand of oximeter, which ranks “top” on JD.com’s ECG/oximeter list, as an example. Its sales volume reached 1.068 million pieces in the 30th day. On Taobao, the purchase page of a variety of oximeter products shows “shipment within 7 days of pre-sale”.
After the oximeter was out of stock, many consumers turned their attention to wearable smart devices such as smart watches and smart bracelets with blood oxygen detection functions. On major e-commerce platforms, the sales of wearable smart devices with words such as “blood oxygen detection” have also skyrocketed. According to data from the Suning.com platform, the sales of bracelets and watches with blood oxygen detection functions in December 2022 will increase by 330% compared with the same period of the previous year.
Under the hot sales, what is the measurement principle of the two and what should be paid attention to when measuring have also become the focus of attention.
What is the measurement principle?
Oxyhemoglobin is formed when deoxygenated hemoglobin in the blood combines with oxygen entering the body. The two have different absorption ratios for infrared light and red light. Oxyhemoglobin absorbs less red light and more infrared light; deoxyhemoglobin absorbs more red light and less infrared light. Oximeters, smart watches and wristbands with blood oxygen detection functions all take advantage of this feature, but the working principles are different. China metal milling service Manufacturer
A common finger-clip oximeter is generally equipped with an LED emitting red light and an LED emitting infrared light invisible to the naked eye on the top of the device. After the light of different wavelengths passes through the finger, the photoelectric sensor under the instrument is responsible for receiving it. Then calculate the blood oxygen saturation.
However, wearable smart devices such as smart watches are generally worn on the user’s wrist. The tissue structure of the wrist is more complex, the bones are also thicker, and light is difficult to penetrate. It is calculated by the emission signal after the light hits the wrist, which belongs to the “reflective type”.
It should be noted that whether you use an oximeter or a wearable smart device, you must pay attention to the correct method when measuring blood oxygen, so that the results obtained are of reference significance.
Versatility and convenience
The hot sales of oximeters or wearable smart devices with blood oxygen detection functions actually stem from concerns about hypoxemia. China metal milling service Manufacturer
Blood oxygen saturation is one of the important indicators reflecting respiratory function, and it usually represents the current blood oxygen content of the body. When there is a lack of oxygen in the blood, oxygen cannot be transported well to various vital organs such as the heart and brain, so insufficient oxygen supply can cause various diseases and even lead to irreversible damage.
Under normal altitude conditions, the blood oxygen saturation is in the normal range of 94%-100%, and it is severe hypoxemia when it is lower than 80%. According to the “Diagnosis and Treatment Plan for Novel Coronavirus Pneumonia (Trial Ninth Edition)”, in a resting state, patients diagnosed with the new crown can be judged as severe if their blood oxygen saturation is lower than 93% when inhaling air, and the care of critically ill patients requires close observation. Signs and state of consciousness, focusing on monitoring blood oxygen saturation. China metal milling service Manufacturer
With the development of the epidemic, people have also begun to pay attention to how to protect the health of the respiratory tract after turning negative. Relevant experts said that it is necessary to do a good job of routine basic protective measures, including wearing masks, washing hands frequently, opening windows for ventilation, and vaccinating against the new crown; maintaining a good lifestyle, such as continuous smoking cessation, balanced nutrition, and appropriate physical activity. People with a history of respiratory diseases should prepare enough daily treatment drugs, take them as directed by the doctor, and follow up on time.
At present, medical research institutions are also promoting home respiratory health monitoring. For example, Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology and 301 Hospital jointly initiated research in the field of respiratory health, using Huawei smart wearable devices to collect heart rate variability, respiratory rate, blood oxygen, and cough. Physiological parameters such as voice can screen the risk of lung infection, and by detecting the breathing rate and skin temperature during nighttime sleep, we can understand the respiratory health status.
Compared with medical monitoring instruments, wearable smart devices have the characteristics of convenience, and can realize comprehensive measurement of multi-dimensional physiological indicators such as body temperature, heart rate, and blood oxygen. China metal milling service Manufacturer
Studies have shown that continuous monitoring is superior to intermittent monitoring in detecting exacerbations. In home health monitoring, wearable smart devices represented by smart watches can be used for continuous measurement over a long period of time, compared with the usual baseline conditions, and early and timely identification of abnormal symptoms. Taking Huawei watches and wristbands as examples, it can realize continuous detection of physiological indicators such as blood oxygen and heart rate, and provide abnormal reminders when the blood oxygen value is low and the heart rate is abnormal.
In the post-epidemic era, with the improvement of people’s health awareness and demand, the sales of smart watches have attracted a wave of “Xiaoyangchun” in recent years.
According to iiMedia Consulting, the size of China’s smart watch market will be 29.5 billion yuan in 2021, and it is expected to exceed 40 billion yuan in 2025. According to IDC’s “China Wearable Device Market Quarterly Tracking Report, Third Quarter 2022”, the smart watch market shipments in the third quarter of 2022 will reach 10.8 million units, a year-on-year increase of 1.8%. 13.3%.
But whether it is blood oxygen saturation, respiratory health or other functions, the significance of health monitoring of wearable smart devices is to remind the body of changes, and to seek medical treatment in time when symptoms appear. China metal milling service Manufacturer