VeinViewer is a vein-contrast enhancement device that uses an infra-red camera to highlight blood (the underlying vasculature) and projects the image in real time onto the skin. With this device, physicians, nurses and other healthcare professionals can find veins easily and avoid multiple needle sticks to patients. Venipuncture, the collection of blood specimen from a vein, is commonly seen by nurses as one of the most painful and frequently performed invasive procedures. According to an article in the Journal of Phlebotomy, an estimated one billion venipunctures are performed annually. In one study in the Journal of Nursing, the number of needle sticks for successful catheter placement ranged from one to at least 14. Ninety percent of inpatients require peripheral IV access and approximately 25% of patients need central venous access which consists of a small flexible tube being implanted under the skin so medications can be delivered directly into larger veins.