Is Pulse Oximeter A Must-have At Home?

Intrduction

Oximeter, as an important part of modern medical monitoring equipment, has been widely used in clinical medical treatment and home health monitoring. Through innovative technical means, the oximeter can non-invasively monitor blood oxygen saturation (SpO2), pulse rate and perfusion index (PI) at any time, providing extremely important data support for medical diagnosis and health management.

Measurement Item

The main measurement indicators of the oximeter are pulse rate, blood oxygen saturation, and perfusion index (PI).

Pulse rate

Pulse refers to the beating of superficial arteries. A normal person's pulse and heartbeat are consistent.

Heart rate is the frequency at which the heart beats. The average person is between 60-90 times per minute. However, when people exercise and are nervous, their heartbeat will speed up.

Pulse rate is the number of pulses per minute.

Under normal circumstances, pulse rate and heart rate are consistent. When atrial fibrillation or frequent premature contractions occur, the pulse rate is less than the heart rate.

Blood oxygen saturation

Blood oxygen saturation is an important physiological parameter of the respiratory and circulatory system, reflecting the oxygenation capacity of the lungs and the ability of hemoglobin to combine with oxygen.

Normal people's arterial blood oxygen saturation is 96% to 98%; when the arterial blood oxygen saturation is lower than 90%, the human body is in a state of hypoxia and requires immediate medical treatment.

Perfusion index

Usually, PI is used as a parameter index, which can reflect the limb perfusion status of the person being tested and indicate the detection accuracy of the machine. That is, it can still detect under conditions of low perfusion and weak perfusion.

Moreover, through the display of PI, it can also indicate the subject's own limb condition problems, that is, when low perfusion occurs, it indicates whether the subject has conditions caused by its own reasons, such as heart problems, shock, etc., and it can also reflect Whether there are external factors such as cold weather, poor peripheral circulation, etc., can be judged based on the above conditions.

PI refers to the Perfusion Index (PI). The PI value reflects the pulsatile blood flow, that is, it reflects the blood perfusion ability. The greater the pulsating blood flow, the greater the pulsating component, and the greater the PI value. Therefore, the measurement site (skin, nails, bones, etc.) and the patient's own blood perfusion (arterial blood flow) will affect the PI value. Since sympathetic nerves affect heart rate and arterial blood pressure (affecting pulse arterial blood flow), the body's neuromodulatory system or mental state can also indirectly affect PI values. Therefore, the PI values will be different under different anesthesia states.

The measurement principle of oximeter

The oximeter emits two light beams of different wavelengths through the light-emitting diodes in the instrument. The light beam penetrates the measurement parts such as fingers, toes, earlobes, etc., and utilizes the different absorption rates of the two wavelengths between oxygenated hemoglobin and non-oxygenated hemoglobin in blood vessels. , calculate the ratio of oxygenated hemoglobin to total hemoglobin in our blood, and obtain the blood oxygen saturation of our arteries.

The detection process is fast, convenient and non-invasive, and can be used to determine whether there is hypoxemia and observe the effect of oxygen therapy.

The main functions and applications of oximeter

The oximeter can not only monitor blood oxygen saturation, pulse rate and perfusion index in real time, but also provide scientific basis for the diagnosis and research of various diseases by recording and analyzing these data.

Clinical medical applications

In clinical medicine, oximeter is mainly used to monitor the blood oxygen saturation and pulse rate of critically ill patients, surgical patients, patients with respiratory diseases, etc., helping doctors to understand the patient's respiratory and circulatory system conditions in a timely manner and make timely medical decisions. .

Home health monitoring

With the improvement of health awareness, more and more families are beginning to use oximeter for daily health monitoring. Especially for patients with chronic obstructive pneumonia (COPD), heart disease and other chronic diseases, regular monitoring of blood oxygen saturation and pulse rate is of great significance to disease management.

Instructions

1.Put the index finger of your left or right hand into the clamp of the hand-clip oximeter, and the infrared light in the clamp will light up. Be careful not to pinch your fingers crookedly, there should be no foreign objects on the surface of your nails, and your fingers should be kept warm.

2.When your finger is in close contact with the working chamber of the hand-clip oximeter, the detection progress will be displayed on the display. Note that after entering the detection state, keep your fingers in a stable and stationary state and do not swing up, down, left, and right.

3.After the test results are displayed on the display, you can take out your finger. The SpO2 at the top of the display screen is the blood oxygen indicator, and the Min on the screen is the pulse rate.

The higher the oxygen-carrying hemoglobin content, the higher the oxygen concentration in the blood, which means that the patient is in an oxygen-rich state rather than a hypoxic state. Under normal circumstances, it is believed that the oxygen saturation should be 95% and above. If the blood oxygen saturation is lower than 94%, it is defined as insufficient oxygen supply, and the patient may experience symptoms such as nausea, vomiting, dizziness, and angina. In addition, the pulse rate of adults should be 60-100 beats/min. Too fast or too slow is abnormal.

Precautions for oximeter

1.Please be sure to operate the oximeter correctly in accordance with the product instructions to avoid measurement errors caused by incorrect use.

2.When using the oximeter, please keep your body relaxed and avoid strenuous exercise and heavy breathing to avoid affecting the accuracy of the measurement results.

3.Long-term use of the oximeter may cause skin allergies and other problems. Please replace the sensor regularly and pay attention to the comfort and dryness of the skin.

4.If a patch sensor is used, the patch should be kept dry and avoid being contaminated by water or other liquids.

5.The oximeter is suitable for adults and children. But for infants or newborns, use a specially designed baby oximeter.

6.If the measurement results are abnormal or symptoms of discomfort occur, please stop using the oximeter immediately and consult a doctor for advice.

Conclusion

As a practical, convenient, non-invasive medical monitoring tool, the oximeter has an increasingly prominent application value in the medical and health fields. With the continuous advancement of technology and the improvement of people's health awareness, the application scope of oximeter will become wider and play a positive role in improving people's health level and quality of life.

Product details

https://www.cn-meditech.com/Pulse-Oximeter-pl3287794.html

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