Aerosol medication delivery apparatus with narrow orifice

Details Aerosol medication delivery apparatus with narrow orifice Aerosol medication delivery apparatus with narrow orifice

2007-04-10

2007-04-10

Bennett, Henry (Department: 3743)

Surgery

Liquid medicament atomizer or sprayer

Pre-pressurized container holding medicament

C128S200220, C128S203120

Reexamination Certificate

active

10979743

ABSTRACT:
An aerosol medication delivery apparatus includes a holding chamber having an input end and an output end and defining an interior space. The output end comprises an orifice having a cross-sectional area of less than about 60 mm2. In one preferred embodiment, the orifice has a circular cross-section. Preferably, the orifice has a diameter of between about 2.0 mm and about 7.50 mm. In one preferred embodiment, an inhalation and exhalation valve is located at the output end. A method of using the holding chamber is also provided.

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patent: WO 03/092777 (2003-11-01), None
International Search Report, PCT/US03/12121, mailed Oct. 6, 2003, 1 page.
Photos of valve and spacer device available from Astra Aktiekolag, Sweden, prior to May 3, 2002, 4 pages.

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