A biliblanket is a portable phototherapy device used to treat neonatal jaundice (hyperbilirubinemia). BiliBlanket is a trademark of General Electric's Datex-Ohmeda subsidiary, but its name has become the generic, colloquial term for a range of similar products and the term used in the medical professions. The name "biliblanket" combines the words bilirubin and blanket. The baby is placed in direct contact with the pad. This device is also known as home phototherapy system, bilirubin blanket, or bidirectional fiber-optic phototherapy blanket. Different types of phototherapy for jaundice involve a blue light of varying types of light, wavelengths, and degrees of irradiance. The light waves promote breakdown of bilirubin and allow it to be eliminated. Compared to standard forms of phototherapy, a biliblanket utilizes a fiberoptic system, allowing them to be used at home. The biliblanket system consists of three components: an illuminator, fiberoptic pad, and disposable pad cover. The fiberoptic pad is used to transport blue or white light from the light source, the illuminator, directly onto the baby's skin. Neonatal jaundice Jaundice (Hyperbilirubinemia) is common in newborn babies and presents itself as yellow discoloration of the skin and whites of the eyes (sclera). Jaundice occurs in roughly 60% to 84% of infants. This condition also causes babies to appear sick, experience difficulty waking up, make high-pitch cries, or not be able to be fed or gain weight. Bilirubin is an orange yellow bile pigment that is produced as a byproduct of hemoglobin as red blood cells break down (hemolysis). Bilirubin is then metabolized in the liver, recycled, and excreted in the bowel movements. When a baby has jaundice or hyperbilirubinemia, this can indicate that the baby's body is producing excess bilirubin or that the liver is too immature to be able to eliminate bilirubin fast enough. Feeding, in particular breastfeeding, the baby often in the first few days of birth can help lower the chances of developing jaundice, since the baby will pass more stool and the milk provides energy to the liver to allow metabolism of bilirubin. Uncontrolled levels of bilirubin can be harmful to the baby. Most neonatal jaundice shows during the first week after birth. Nevertheless, when bilirubin levels become exceedingly high, the substance may move out of the blood, cross the blood brain barrier, and collect in brain tissue, damaging the baby's brain cells, a condition known as acute bilirubin encephalopathy. If acute bilirubin encephalopathy is