What is cannula definition?

A cannula is a thin, flexible tube that is inserted into a vein or other part of the body to administer medication, drain fluid, or for diagnostic purposes. Cannulas vary in size and length depending on their intended use. They can be made of materials such as plastic, metal, or silicone. Cannulas are commonly used in medical procedures such as intravenous therapy, blood transfusions, and chemotherapy administration, as well as in cosmetic procedures such as liposuction. Cannulas are designed to be easily inserted into the body without causing significant discomfort or pain to the patient.