cannula
Sign in to savethumb|alt=Diagram showing a cannula|A cannula
Article
12 sectionsContents
- Medicine
- Intravenous cannulation
- Aortic cannulation
- Nasal cannulation and oral-nasal cannulation
- Tracheotomy tube
- Veterinary use
- {{Anchor|Blunt-tip}}Aesthetic medicine and anti-ageing
- Body piercing
- Non-medical use
- See also
- References
- External links
thumb|alt=Diagram showing a cannula|A cannula
A cannula (; Latin meaning 'little reed'; : cannulae or cannulas) is a tube that can be inserted into the body, often for the delivery or removal of fluid or for the gathering of samples. In simple terms, a cannula can surround the inner or outer surfaces of a trocar needle thus extending the effective needle length by at least half the length of the original needle. Its size mainly ranges from 14 to 26 gauge. Like hypodermic needles, different-sized cannulae are often color coded.