The blood glucose meter can roughly know whether the blood glucose is stable or not, but because of its poor accuracy, the measured value can only be used as a reference and cannot replace other invasive monitoring means such as blood glucose meters and tests. Blood glucose watch is a non-invasive monitoring method, which is realized by near infrared monitoring technology. However, the academic community generally believes that this measurement technology is not mature and the accuracy of the measured value needs to be verified. The blood glucose meter can only be used as an auxiliary means, which has little clinical significance.

Non-invasive blood glucose monitoring watch is to extract glucose from tissue fluid by applying a weak current to the skin, and calculate the blood glucose level according to the positive and negative ions generated by the oxidation of glucose by enzymes on the sensor.

blood-glucose meter

There are two kinds of blood glucose meters in terms of working principle, one is photoelectric type and the other is electrode type. The photoelectric blood glucose meter is similar to a CD player, with a photoelectric head. Its advantage is that it is relatively cheap, but its disadvantage is that the probe is exposed to the air, which is easy to be polluted and affects the test results. The error range is about plus or minus 0.8, the service life is relatively short, and it is generally accurate within two years.

Two years later, it is recommended that patients who are using photoelectric motors go to the maintenance station for calibration. General hospitals have hospital representatives for regular maintenance, and home blood glucose meters should be maintained in the after-sales service department. The principle of electrode type test is more scientific, and the electrode mouth is hidden, which can avoid pollution. The error range is generally about plus or minus 0.5, and the accuracy is high. Under normal use, no calibration is needed, and the service life is long.