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BD Micro-Fine+ Pen Needle 0.3 ml 30 G — Results Duration For a disposable medical device like this, “results duration” refers to single-use performance and shelf stability. Each needle is intended for one injection only; sterility is guaranteed until the printed expiry when stored per IFU. Use once, then dispose in a sharps container per local regulations. Clinical performance is immediate and single-use: thin walls, lubrication and bevel geometry ensure a comfortable, consistent injection. If resistance or deformation occurs, stop use and replace the device. Store away from heat and light to preserve sterility and material integrity.