Inhalation valve

Details Inhalation valve Inhalation valve

1982-03-19

1984-09-11

Coven, Edward M.

Surgery

Liquid medicament atomizer or sprayer

Spray impinged against baffle in or adjacent flow conduit

12820023, A61M 1600

Patent

active

044704127

ABSTRACT:
An inhalation valve is presented for use with a known antiasthmatic medication cartridge and mouthpiece to simplify patient inhalation and to improve mist formation. A cylindrical passageway receives the known mouthpiece and is provided with an elastomeric diaphragm having a slit therein. An upstream spider backs up the diaphragm. Upon inhalation the diaphragm flexes and stretches to open the slit, and the diaphragm seals off exhaust passages. On exhalation the diaphragm backs against the spider which seals the slit, the diaphragm moving away from and opening the exhaust passages.

REFERENCES:
patent: 4259951 (1981-04-01), Chernack et al.
patent: 4263907 (1981-04-01), Lindsey
patent: 4333450 (1982-06-01), Lester

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