Aerosol holding chamber for a metered-dose inhaler

Details Aerosol holding chamber for a metered-dose inhaler Aerosol holding chamber for a metered-dose inhaler

1997-10-08

1999-01-05

Lewis, Aaron J.

Surgery

Liquid medicament atomizer or sprayer

12820023, 12820312, 12820629, A61M 1100

Patent

active

058552022

ABSTRACT:
A metered-dose inhaler having a medication-containing cartridge and a tubular outlet is used with an aerosol holding chamber having an elongated body having a rear end wall formed with a hole shaped to fit snugly around the tubular outlet of the inhaler, a longitudinally extending side wall, and a front end wall. A mouthpiece formed on the front end wall has a large-diameter tubular rear portion extending forward from the front end wall, a small-diameter tubular front bite portion extending forward from the large-diameter rear portion, and a transverse wall between the rear and front portions and extending generally perpendicular thereto. The front bite portion is of a height equal to at most half a height of the large-diameter rear portion.

REFERENCES:
patent: 4470412 (1984-09-01), Nowacki et al.
patent: 5012803 (1991-05-01), Foley et al.
patent: 5297543 (1994-03-01), Larson et al.
patent: 5571246 (1996-11-01), Alldredge
patent: 5598836 (1997-02-01), Larson et al.

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