Eye dropper
An eye dropper was a tool used to collect and distribute liquids.

In 2372, Tom Paris recalled feeding a baby bird with an eye dropper, which inspired him to use a hypospray to feed the reptohumanoid he and Neelix encountered on Planet Hell. () 

In 2374, Jadzia Dax mused to Quark that whoever decided to put liquid latinum inside solid gold probably got tired of making change with an eye dropper. ()

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Medical equipment