A new IV needle design is solving a problem that's existed since the IV was invented. Traditional needles are rigid for the entire duration they're placed in a vein, and since your body is constantly moving, that rigidity causes friction and irritation against the vessel wall over time — especially during long-term treatments. This new flexible needle is engineered to remain stiff only during insertion, then soften once it reaches body temperature inside the vein. That shift allows the needle to

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