What is a single-lumen Tubing? 

Lumens are the inner spaces in tubes that transport liquids, gases or surgical devices during a medical procedure. There can be a single lumen device or multiple lumens, and the configurations and numbers are almost limitless. When a catheter has a single hole through the center of it, it is referred to as a single lumen. Single lumens are most commonly used in IV, urological and drainage catheters.


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