Catheter: A thin, flexible tube. For example, a catheter placed in a vein provides a pathway for giving drugs, nutrients, fluids, or blood products. Samples of blood can also be withdrawn through the catheter.
The catheter was created by the Greeks. "Katheter" originally referred to an instrument that was inserted such as a plug. The word "katheter" in turn came from "kathiemai" meaning "to sound" with a probe. The ancient Greeks inserted a hollow metal tube through the urethra into the bladder to empty it and the tube came to be known as a "katheter."
For specific information about a particular type of catheters or catheterization, please see:
Central venous catheter
Indwelling bladder catheter
Swan-Ganz catheter and
Library > Literature & Language > Dictionary ( kÄƒth ' Ä-tÉ™r ) n. A hollow flexible tube for insertion into a body cavity, duct, or vessel to allow the passage of ...
A urinary catheter is any tube system placed in the body to drain and collect urine from the bladder. Information Urinary catheters are used to drain the ...
catheter /cathÂ·eÂ·ter/ (kathÂ´Ä•-ter) 1. a tubular, flexible surgical instrument that is inserted into a cavity of the body to withdraw or introduce fluid.
Catheter - Shop for catheters and supplies including urinary catheters online at AllegroMedical.
cathÂ·eÂ·ter (k th-t r) n. A hollow flexible tube for insertion into a body cavity, duct, or vessel to allow the passage of fluids or distend a passageway.