I.V Cannula
Cannulae normally come with a trocar inside. The trocar is a needle, which punctures the body in order to get into the intended space. Many types of cannulae exist: Intravenous cannulae are the most common in hospital use. A variety of cannulae are used to establish cardiopulmonary bypass in cardiac surgery.A nasal cannula is a piece of plastic tubing that runs under the nose and is used to administer oxygen.