[1] They use near-infrared light reflection to create a map of the veins.
[1] The received imagery is then either displayed on a screen or projected back onto the patient's skin.
They may not increase the success of starting intravenous catheters in children,[1] since the difficulty may arise not in locating the vessel, but in physical manipulation of the needle.
Nurses and other healthcare practitioners can easily pass IV cannula and other parenteral dosage with the help of a vein finder.
[5] Christie Medical Holdings introduced the VeinViewer Flex.