<unk>  are devices used to try to increase the ability of healthcare providers to see<unk> s. They use<unk><unk>  light reflection to create a map of the<unk> s. The received imagery is then either displayed on a screen or projected back onto the patient's skin. Unsurprisingly, they may not increase the success of starting intravenous catheters in children, since the difficulty may arise not in locating the vessel, but in physical manipulation of the needle. Nurses and other health care practitioner can easily pass IV cannula and other parenteral dosage with the help of a<unk><unk> . Luminetx introduced a device called<unk> Viewer in 2006, and Accuvein introduced a product called Accuvein in 2008. The machines in the United States cost about $15,000 as of 2015.
Near-infrared vein finder
X-ray vision
Intravascular fluorescence
Birmingham gauge
Biomedical spectroscopy
Laser Doppler imaging
Peripheral vascular examination
Acoustic angiography