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特許 権利維持 A tampon is a cylindrical mass of absorbent material, primarily used as a feminine hygiene product. Historically, the word "tampon" originated from the medieval French word "tampion", meaning a piece of cloth to stop a hole, a stamp, plug, or stopper.[1] At present, tampons are designed to be easily inserted into the vagina during menstruation and absorb the user’s menstrual flow.