Breath actuated nebulizer with valve assembly having a relief pi

Details Breath actuated nebulizer with valve assembly having a relief pi Breath actuated nebulizer with valve assembly having a relief pi

1997-08-29

2000-04-04

Weiss, John G.

Surgery

Liquid medicament atomizer or sprayer

Spray impinged against baffle in or adjacent flow conduit

12820021, 12820014, 239338, A61M 1100

Patent

active

060448415

ABSTRACT:
A breath actuated nebulizer for efficiently and reliably delivering aerosolized liquid to an inhaling patient is disclosed. The nebulizer includes a valve assembly having an actuator piston for quickly responding to an inhalation and beginning the nebulization process, and a relief piston to lower the inhalation effort required of the inhaling patient. Also provided is a method of providing breath actuated nebulization including the steps of moving an actuator piston connected to a diverter so that the diverter reaches a nebulizing position during an initial period of inhalation, and moving a relief valve to allow a greater flow of air, and thereby reduce inhalation effort, after the initial period of inhalation.

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