How to Use a Painless Laser Blood Glucose Meter for Accurate Testing
Brief is dedicated to providing convenient home healthcare products and services. Upholding the philosophy of "reducing patient pain and improving quality of life," we have deeply researched minimally invasive and painless blood sampling and measurement methods. We have launched a series of portable medical testing products based on laser blood sampling, such as laser blood glucose meters, laser blood glucose, ketone, and uric acid analyzers.

Portable Laser Blood Sampling and Testing Products
Our portable laser blood sampling and testing devices use a 2940nm laser to collect peripheral blood samples from the fingertip skin (it is recommended to use the side of the ring finger or middle finger). There are no needles, no risk of cross-contamination, and it is ready to use upon charging—convenient and quick. The operating method is as follows:
The device utilizes a high-precision micro solid-state laser generating unit. During theBlood Collectionprocess, the laser quickly reaches the skin surface, creating a micro-hole in a very short time, far smaller than the contact time of a traditional lancet with the skin. The wound is small, regular in shape, with minimal pain, and is safe and reliable.
View the complete usage stepsCleaning the Laser Lens
During the blood collection process, the high-transmissive laser lens inside the instrument may become contaminated with skin tissue vapors, leading to a decrease in the laser's output energy, increasing blood collection pain, or even failing to collect blood. Therefore, regular cleaning of the laser lens is necessary to maintain its brightness.
Cleaning Method:Pull the glucose meter handle, rotate the lens protection cover counterclockwise, and wipe the lens 2-3 times with an alcohol cleaning wipe. Then, tighten the lens protection cover.
Note:Please turn off the device before cleaning the laser lens. Do not clean it while the device is on.
Device Testing Parameters
The device can test parameters such as blood glucose, β-hydroxybutyrate, and uric acid (depending on the specific product model). The test results are automatically saved in the device’s memory, and you can view historical data using the page-turn button. Up to 10,000 historical records can be stored.
Click here to download the full user manual.
FAQ
1. What to do if no blood comes out?
The 2940nm laser emitted by the device is focused through an optical lens and acts on the skin, forming a micro-hole smaller than traditional lancet tips. Since the wound is small, you may need to gently squeeze your finger to release the blood sample.
If blood is not coming out, please check the following:
- Is the finger pressed firmly against the laser window during the collection process?If the finger is not firmly pressed against the laser window, it may cause the sampling site to lose focus, preventing effective laser energy from being focused on the skin surface, resulting in a failed sample collection.
- Is the laser lens clean and bright?With repeated use, skin tissue vapors can accumulate on the lens surface, which reduces the laser’s effectiveness in penetrating the skin. Please refer to the earlier cleaning method for lens maintenance.
You can try the following methods to improve blood collection results:
- ● Firmly press the finger against the laser window.
- ● Clean the laser lens.
- ● Increase the blood collection intensity.
- ● Use a more delicate part of the finger skin (it is recommended to use the side of the ring finger or middle finger).
- ● Warm or rub your hands to promote blood flow before reattempting blood collection (especially recommended during cold weather or for people with cold hands).
2. Why does the blood collection cause more pain?
If the finger sampling site is not aligned with the laser focus or if the laser setting is too high, it can cause the wound to enlarge, leading to increased pain.
You can try the following methods to reduce blood collection pain:
- ● Firmly press the finger against the laser window.
- ● Clean the laser lens.
- ● Lower the blood collection intensity (some models have a 9-level laser mode for finer adjustments).
3. Are the test results accurate?
The device uses 8-electrode electrochemical test strips and an internal temperature sensor for enhanced anti-interference ability. Calibration is performed using hospital biochemical analyzers, ensuring high reliability of the results. You can compare the device's results with those of venous blood samples tested simultaneously by biochemical analysis.
If you find significant deviation in the measurement, please check for the following:
- ● Are you using expired or poorly sealed test strips?If so, replace them with new ones.
- ● During the measurement, did you add blood multiple times to the same strip or fail to provide enough blood for the test?Ensure you add a sufficient amount of blood to the strip in one go for accurate results.
- ● Did you calibrate the device for uric acid tests?For uric acid testing, the calibration card must be inserted before testing. Only when the code displayed on the device matches the one on the uric acid test strip bottle can the strip be used properly.




