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Open Access Publications from the University of California

Pocket-sized ultrasonic nebulizer for inhalation drug delivery

  • Author(s): Tsai, CS
  • Mao, RW
  • Lin, SK
  • Zhu, Y
  • Tsai, SC
  • Brenner, M
  • Mahon, S
  • Mukai, D
  • Boss, G
  • et al.

Silicon-based MHz ultrasonic multiple Fourier horns in resonance are capable of producing high-throughput micrometer-sized droplets at low drive power. The centimeter-sized nozzles together with low power requirement enabled most recent realization of the first pocket-sized ultrasonic nebulizer (8.6 × 5.6 × 1.5 cm3) that contains nozzle, IC electronic driver, cell-phone battery, micro pump, drug reservoir, and liquid feed. A variety of common drugs for asthma, chronic obstructive pulmonary disease (COPD), diabetics, cyanide poisoning, pulmonary fibrosis, etc. such as albuterol, Humulin U-100, cobinamide, interferon-γ, and budesonide suspension have been nebulized with desirable aerosol size and throughput. © 2013 IEEE.

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