Medical aerosol non-diluting holding chamber

Details Medical aerosol non-diluting holding chamber Medical aerosol non-diluting holding chamber

2005-08-24

2010-06-01

Douglas, Steven O (Department: 3771)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

C128S200230, C128S203280

Reexamination Certificate

active

07726310

ABSTRACT:
A flexible bag aerosol holding chamber is sealed around the outlet passage of the actuator for a pressurized metered-dose inhaler. An elastic-loaded mouthpiece is sealed around the inlet passage of the actuator so that the user may intermittently break the seal around the inlet passage by withdrawing the mouthpiece, thus allowing inhalation of a portion of the aerosol contents of the chamber. In a preferred embodiment of the invention, the aerosol contains a compound which has traditionally been smoked such as nicotine or a cannabinoid. The user may draw upon the chamber's contents a number of times at a frequency analogous to smoking until the chamber is fully collapsed. One inhaler actuation, and one filled chamber, are comparable to one cigarette. The collapsible bag chamber allows for economy of inhaler actuations relative to user inhalations, without the aerosol being diluted by ambient air.

REFERENCES:
patent: 4088131 (1978-05-01), Elam et al.
patent: 4119097 (1978-10-01), Spector
patent: 5842467 (1998-12-01), Greco
patent: 6158428 (2000-12-01), Mecikalski
patent: 6390090 (2002-05-01), Piper
patent: 6463928 (2002-10-01), Buisson
patent: 6494202 (2002-12-01), Farmer
patent: 2002/0104531 (2002-08-01), Malone

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