(medicine) A tube inserted in the body to drain or inject fluid.
(medicine) A small tube inserted into a body cavity to administer a drug, create an opening, distend a passageway, or remove fluid.
(aviation) A hose or tube that connects directly to an oxygen (O2) bottle/source from the user's nose, commonly used by aircraft pilots or others needing direct oxygen breathing apparatus.
The name of various instruments for passing along mucous canals, esp. applied to a tubular instrument to be introduced into the bladder through the urethra to draw off the urine.
A small tube of metal, wood, or India rubber, used for various purposes, esp. for injecting or withdrawing fluids. It is usually associated with a trocar.
a thin flexible tube inserted into the body to permit introduction or withdrawal of fluids or to keep the passageway open
a small flexible tube inserted into a body cavity for draining off fluid or introducing medication
In medicine, a catheter is a thin tube made from medical grade materials serving a broad range of functions. Catheters are medical devices that can be inserted in the body to treat diseases or perform a surgical procedure.
A cannula (; Latin meaning 'little reed'; plural 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.