A magical device - vein viewer device, use it to shine on the body, you can see the human blood vessels directly through the skin, even the most troublesome tattoo arm will become clearly visible. This is the handheld vein finding device that is popular in the market recently.
You should know that when a patient needs a needle, it may be difficult to find the location of the blood vessels due to the influence of fat or skin color difference. If you are a novice nurse at this time, you will experience the unique technique of sending two needles with one needle. In order to relieve the pain of repeated punctures for patients, someone invented this handheld vein finding device. Just shine it on the skin for less than 2 seconds, no matter how deep the blood vessels are hidden, they will become clearly visible.
The reason why the handheld vein finding device can see blood vessels is that the principle is very simple. It mainly obtains the location of blood vessels through infrared light emitted by the skin. Since the deoxyhemoglobin in the veins and the surrounding tissues cannot completely absorb light, the information fed back is also different. The final information is processed by the device and projected onto the skin after processes such as electrical conversion and image forming. Even through thick skin, the blood vessels can be clearly seen. The advantage is that medical staff can easily observe blood vessels below 15 mm under the skin, and even show blood flow and valve conditions. Of course, in addition to the arms, other parts can also be applied. The handheld vein finding device is really good for novice nurses and interns.