Patent ID: 6427683
Filing Date: 2002-08-06
Classification: A61M

Abstract:
A manually operated aerosol inhalation device comprisinga tubular inspiratory part with an internal cross sectional area, having at one end a mouthpiece and having an inlet opening with an opening area in another end opposite the mouthpiece, a holding part for receiving an aerosol container with a valve and an outlet tip, and being situated externally on the tubular inspiratory part at a first portion thereof, a member for passage of aerosol being provided in said first portion for receiving the outlet tip of the aerosol container and comprising a conduit with an outlet opening for discharging aerosol into the inspiratory part in a direction towards the mouthpiece, said member extending transversely in the tubular inspiratory part and occupying part of the internal cross sectional area in the first portion of the tubular inspiratory part, a second portion of the tubular inspiratory part extending from the first portion to the inlet opening and a third portion of the tubular inspiratory part extending from the first portion to the mouthpiece, the first portion being situated intermediate of the second portion and the third portion, said third portion having a constant internal cross sectional area equal to said opening area, wherein the first portion, second portion and third portion reduce a back pressure or pressure drop in use.