the.com/cannula

The tiny tube that lets hospitals politely invade your veins.

means A thin, flexible tube inserted into a vein or body cavity to deliver fluids, drugs, or oxygen, or to drain something out.

from Straight from Latin cannula, 'little reed' or 'little pipe' — the diminutive of canna, 'reed' or 'cane' (the same root that gives us 'cane' and 'canal'). Roman and later medical writers used canna for hollow surgical tubes, and the diminutive stuck as the word for the smaller, finer ones — so your IV line is, etymologically, just a tiny reed slipped under the skin.

name origin
latin for little reed
not a needle
needle inserts it, then slides back out
color coded
size shown by cap color, orange is huge
dual purpose
delivers fluids or drugs, draws blood too
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