Position insensitive low resistance aspirator

Details Position insensitive low resistance aspirator Position insensitive low resistance aspirator

1992-10-26

1995-01-10

Burr, Edgar S.

Surgery

Liquid medicament atomizer or sprayer

Gas stream aspirating medicament from reservoir

12820018, 12820413, 261 782, 239338, A61M 1500

Patent

active

053797604

ABSTRACT:
A position insensitive low resistance aspirator and nebulizer includes a generally disk-shaped hollow housing having an outwardly extending cylindrical input fitting and an outwardly extending oppositely positioned output fitting. A sleeve extends between the input and output fittings and communicates with the disk-like housing interior through a downwardly facing slot. A porous ring is received within the housing interior and defines a capillary between the outer surface thereof and the interior surface of the cavity. A gas pressure vaporizing assembly receives the liquid within the interior cavity through wicking and capillary action. In alternate embodiments, porous members having a dome shape and an annular cylindrical shape are also used.

REFERENCES:
patent: 1312117 (1919-08-01), Hinkle
patent: 2311578 (1943-02-01), Rose
patent: 3483866 (1969-12-01), Macintosh
patent: 4454877 (1984-06-01), Miller
patent: 4652408 (1987-03-01), Montgomery

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