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Nebulizer apparatus and method

  • US 6,929,003 B2
  • Filed: 03/19/2002
  • Issued: 08/16/2005
  • Est. Priority Date: 03/20/2001
  • Status: Active Grant
First Claim
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1. A nebulizer comprising:

  • a housing having an ambient air inlet and a chamber for holding an aerosol;

    an air outlet communicating with the chamber for permitting the aerosol to be withdrawn from the chamber;

    a pressurized gas inlet adjacent a fluid orifice, the pressurized gas inlet in communication with the chamber;

    a diverter positioned in the chamber in a fixed position relative to the pressurized gas inlet;

    an actuator piston connected with a pressurized gas inlet cover defining a portion of the fluid orifice and positioned in the housing, the actuator piston responsive to an initial period of inhalation through the air outlet to adjust the fluid orifice to a nebulizing position wherein at least one portion of the fluid orifice is adjustable, in response to a patient'"'"'s breathing, between the nebulizing position and a non-nebulizing position.

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