Cannulise is a medical term used to describe the process of inserting a cannula, a thin tube, into a vein or artery for the purpose of administering medications, fluids, or other substances. Synonyms for cannulise include catheterize, intubate, or puncture. These words all refer to the use of a small tube inserted into a larger vessel or organ for medical purposes. Other synonyms for cannulise may include needle insertion, venipuncture, or infusion. Regardless of the term used, cannulisation is a common medical practice used in hospitals, clinics, and emergency medical situations around the world. It remains an effective way to deliver life-saving treatments to patients.