LiDCO Group develops and manufactures minimally invasive monitoring technology, which monitors the amount of blood flowing round the body. LiDCOplus monitors are used in the intensive car units of hospitals. LiDCOrapid monitors are aimed at the heart and moderate to high risk surgery markets. Lidco was established in 1991in collaboration with King's College, London. LiDCO floated on Aim on 5 July 2001, when it raised £19.96m at 140p a share.