Inhaler device

Details Inhaler device Inhaler device

2005-10-18

2005-10-18

Bennett, Henry (Department: 3743)

Surgery

Liquid medicament atomizer or sprayer

Gas stream aspirating medicament from reservoir

C128S200230, C222S051000, C116S228000, C116S268000, C116S272000, C239S074000

Reexamination Certificate

active

06955169

ABSTRACT:
A device used with fluid canisters comprising a transparent body allowing the viewing of movement within the body having a minor and major cavity with a float indicator and float seat within the minor cavity. An inhaler top and bottom fits each end of the body forming an airtight chamber within the major and minor cavity above the float, the top having a seat to accept a canister and a nozzle aperture to accept a nozzle of the canister oriented to release fluid from the canister into the major cavity. An inlet through the minor cavity below the seat maintains pressure equal to pressure outside of the body within the minor cavity. Inhalation through a mouthpiece and one way valve reduces pressure within the major and minor cavity above the float drawing fluid through the one way valve creating a pressure difference across the float causing it to move.

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patent: 5522380 (1996-06-01), Dwork
patent: 6305371 (2001-10-01), Frid et al.
patent: 6708688 (2004-03-01), Rubin et al.

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