A cannula is a tube which is usually amid into the body, majorly for the abatement or supply of aqueous or for the accumulating of data. In added words, a cannula can be acclimated for surrounding the centralized or alien surfaces of a alleviative aggravate appropriately extending the access of the aggravate to the veins. An intravenous cannula is of two altered kinds. A venous cannula is amid into a vein, basically for the authoritative or administering of intravenous gases or fluids, for accession claret samples and for ecology the medicines. An arterial cannula is usually amid into anartery , which is acclimated during above surgeries and in analytical affliction areas to admeasurement claret burden and to apprehend approved claret samples. Insertion of an IV cannula includes inserting a tubular anatomy into the patient’s attitude so that infusions can be amid anon into the patient’s bloodstream. IV Cannula is bogus in altered colors, depending aloft the admeasurement