(1) Blood transfusions are most commonly received using a small plastic tube called a cannula , which is inserted into a vein in your arm.(2) An intravenous cannula is inserted and fluids are administered directly into the circulation.(3) A second electrocardiograph was attached and an intravenous cannula inserted, and I was given some diamorphine.(4) The company's surgical navigator uses radiographic imaging to help a surgeon accurately guide cannulae and surgical instruments to targeted areas of the spine.(5) Umbilical tapes are placed around the SVC and IVC cannulas to hold the cannulas and tourniquets in place during surgery.