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An Intelligent Pressurized Metered Dose Inhaler
Generally, patient gets medicine in three ways: Injection; Swallowing or Inhaling. With injection and swallowing, the dosage of drug goes into the body are exact. While inhaling procedure and consequence are more complicated (Fig 1). Although the quantity of each dosage of a medical spray is supposed to be the same, the effective dosage and distribution of atomized meter dose inhaler into airway are largely based on the inhaling waveform and inhaling/spraying time relationship.
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