Device for dispensing metered amounts of aerosol for inhalation

Details Device for dispensing metered amounts of aerosol for inhalation Device for dispensing metered amounts of aerosol for inhalation

1989-06-21

1991-12-24

Burr, Edgar S.

Surgery

Liquid medicament atomizer or sprayer

12820023, A61M 1100

Patent

active

050742949

ABSTRACT:
The invention concerns an apparatus for the administration of drugs in form of metered aerosol, consisting of an expansion chamber comprising two coaxial tubes freely slidable within one another and detachable.
The external tube has an open end and a tapered end on which the chamber month-piece is mounted.
The internal tube has an open end which may be inserted into the external tube and on opposite end on which the month-piece of a conventional dispenser containing the active principle in form of pressurized aerosol is stuck.
The apparatus allows a better penetration of the drug into the airways up to the deepest zones of the bronchial tree.

REFERENCES:
patent: 3788316 (1974-01-01), Mora
patent: 3809294 (1974-05-01), Torgeson
patent: 3897779 (1975-08-01), Hansen
patent: 3994421 (1976-11-01), Hansen
patent: 4470412 (1984-09-01), Nowacki et al.
patent: 4534343 (1985-08-01), Nowacki et al.
patent: 4637528 (1987-01-01), Wachinski et al.
patent: 4641644 (1987-02-01), Anderson et al.
patent: 4690332 (1987-09-01), Hughes

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