A cannula is a thin, flexible tube that is used to either remove or insert fluids or gases into the body, typically during medical procedures. Full definition
He was given supplementary oxygen via a nasal cannula until two days before he was discharged. (breastfeedingtoday-llli.org)
From the Charity's perspective we felt that the hospital had taken a bold step by reviewing the policy of cannula insertion, and making a step - change that is now a prescribed procedure requiring a doctor's authorisation to insert them. (politics.co.uk)
In the study of 30 children aged 7 to 18 years undergoing a medical procedure (peripheral blood collection, botulinum toxin injections, or intravenous cannula insertion), BrightHearts was acceptable to patients, their parents, and their healthcare providers. (sciencedaily.com)