Thermal drop generator

Details Thermal drop generator Thermal drop generator

2005-01-27

2008-12-30

Douglas, Steven O (Department: 3771)

Surgery

Liquid medicament atomizer or sprayer

C128S200160

Reexamination Certificate

active

07469696

ABSTRACT:
A silicon die having an orifice layer with plural openings formed therein defines a drop ejection device for use in a handheld inhaler. An underlying control layer defines fluid chambers, each carrying a heat transducer. A control system energizes selected heat transducers to heat fluid in the chambers, vaporizing the fluid, which is ejected through the orifices in small droplets.

REFERENCES:
patent: 5881716 (1999-03-01), Wirch
patent: 6543879 (2003-04-01), Feinn et al.
patent: 6547351 (2003-04-01), Wilson
patent: 6595611 (2003-07-01), Ruffino
patent: 2002/0073990 (2002-06-01), Noolandi
patent: 2002/0092519 (2002-07-01), Davis
patent: 2003/0081072 (2003-05-01), Trueba
patent: 2003/0186474 (2003-10-01), Haluzak
patent: 2004/0039355 (2004-02-01), Gonzalez

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