Blood glucose meter from the principle of work there are two kinds of respectively, a photoelectric type, one is electrode type.
Photoelectric blood glucose meter similar to the CD machine, there is a photoelectric head, its advantage is cheaper, the disadvantage is that the detector head is exposed to the air, it is easy to be contaminated, affecting the test results, the error range of plus or minus 0.8 or so, the service life is relatively short, generally within two years is more accurate, two years after the proposal is to use photoelectric type of machine to the patients to the after-sales service station to do a calibration and optical head maintenance. Johnson's steady, steady Jie, Roche's Lekangquan, Rokangquan, etc. belong to this type.
Electrode-type testing principle is more scientific, electrode port hidden, can avoid contamination, the error range is generally in the plus or minus 0.5 or so. High precision, under normal use, no need for calibration, long life. Its representative products are Roche superior, Japan Kyoto 1640, South Korea Woodpecker, Abbott Anthem, Lisutane, Johnson and Johnson stable ho and so on.
There are two types of blood glucose meter from the blood collection method, a drop blood type, a suction type.
The drip blood glucose meter is generally a large amount of blood collection, the patient is more painful, the typical machine in this regard is Abbott's early products QID glucose meter. This kind of blood glucose meter will affect the test results if more blood drops, and insufficient blood drops, the test will fail, wasting the test paper, so the operation is difficult to master.
The blood glucose meter is mostly photoelectric type.
The blood-sucking type of glucose meter, the test paper controls the measurement of the blood sample by itself, there will be no deviation of the result because of the problem of the blood volume, the operation is convenient, and the test paper can be used to point out the blood drop.
Absorbent blood glucose meter are electrode type.
Nowadays, most blood glucose meters are invasive, that is, they need to collect blood, for patients who need to measure blood glucose several times, although there have been non-invasive blood glucose meters come out, but the price is very high! In order to alleviate the pain of patients' fingertip blood collection, blood glucose meters with multiple sites for blood collection can be used, and blood glucose meters with a small amount of blood collection (1 to 1.5 microliters) can also be selected. Selection of blood glucose meter need to pay attention to the indicators
1. High accuracy: the first thing to consider is the accuracy of the instrument, such as the test results are inaccurate will mislead us, and even a delay in the tragedy of the disease.
2. Short test time: most of the blood glucose meters on the market today have a test time of about ten seconds, and some even a few seconds. You can choose the blood glucose meter with short time as much as possible. The current international most advanced blood glucose meter testing time is 5 seconds.
3. Blood Collection Sites: Compared with the traditional finger blood collection method, multi-site blood collection (fingers, palms, upper arms, forearms, thighs, calves and other six major parts) and forearm blood collection can greatly reduce the pain of blood collection. Studies have shown that there is a good correlation between the blood glucose values measured by forearm blood collection and finger blood collection, but postprandial blood glucose elevation is first manifested from the finger blood glucose, i.e., the forearm blood glucose reading is delayed compared to the finger reading, which is due to the richness of the capillaries in the fingers, whose blood flow rate is about 3-5 times faster than that of the forearms. We can gently soften the forearm to accelerate its local blood flow movement to reduce the difference between the forearm and the fingers.
4. Memory function: as far as possible, choose the instrument with a large capacity of memory function, so that you can check the previous blood glucose situation.
5. Less blood collection: The general blood sample volume of blood glucose meter is 1, 2, 4 microliters, or even 10 microliters. The lower the volume of blood collected, the higher the success rate of the test.
6. Simple operation: You can choose a glucose meter with fewer operating steps and lower requirements for the operator, and a glucose meter that can be used easily and comfortably with only a little training.
7. Reasonable price: blood glucose meter is a one-time consumption, it is important to consider the price of blood glucose test strips. In addition, because different brands of glucose meters have different test strips and cannot be borrowed from each other, it is also important to pay attention to whether the glucose meter model has been obsolete, and whether the test strips can guarantee a long-term supply.
8. Compact size, easy to carry
9. Good after-sales service Check urine sugar is the same Non-invasive