Powder Needless Injector is a novel drug delivery device, which uses supersonic airflow produced by gas expansion under high pressure to energize drug powders to penetrate the stratum corneum into dermis or subcutaneous tissue. It represents attractive advantages in many aspects such as no needles, no pain, no cross-infection, convenience and efficiency. It is suitable for children, needle-feared patients and patients with chronic diseases requiring long-term administration, furthermore, especially for medi...
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