Nozzle for handheld pulmonary aerosol delivery device

Details Nozzle for handheld pulmonary aerosol delivery device Nozzle for handheld pulmonary aerosol delivery device

2003-02-28

2010-12-14

Yu, Justine R (Department: 3771)

Surgery

Liquid medicament atomizer or sprayer

C239S692000

Reexamination Certificate

active

07849850

ABSTRACT:
An improved Electrohydrodynamic (EHD) nozzle particularly suitable for a handheld pulmonary aerosol inhaler increases the consistent and efficient dispensing of therapeutic liquids by reducing or eliminating wetting through shielding of discharge electrodes. Some versions further eliminate wetting while enhances neutralization of the aerosol through presentation of a corona wind of ions annularly surround the aerosol. Incorporation of improved liquid distribution with consistent pressure drops to each EHD nozzle tip allows horizontal dispensing, and by using dielectric nozzle tips with low surface energy to thereby avoid wicking between dispenses and to advantageously reduce achievable particle size when dispensing. Some versions feature enhanced snap-fit assembly and other manufacturability advantages. One of the unique features of the EHD nozzles is achieved high dose rate (microliters/minute) with low wetting and small particle size (1.0-5 microns), although these properties tend to be mutually exclusive. Furthermore, these attributes are incorporated into a conveniently small, handheld device.

REFERENCES:
patent: 4004733 (1977-01-01), Law
patent: 4356528 (1982-10-01), Coffee
patent: 4358059 (1982-11-01), Coffee
patent: 4362775 (1982-12-01), Yabe et al.
patent: 4470550 (1984-09-01), Coffee
patent: 4549243 (1985-10-01), Owen et al.
patent: 4561037 (1985-12-01), MacLaine et al.
patent: 4634057 (1987-01-01), Coffee et al.
patent: 4659012 (1987-04-01), Coffee
patent: 4663639 (1987-05-01), Owen et al.
patent: 4703891 (1987-11-01), Jackson et al.
patent: 4801086 (1989-01-01), Noakes
patent: 4829996 (1989-05-01), Noakes et al.
patent: 4962885 (1990-10-01), Coffee
patent: 5044564 (1991-09-01), Sickles
patent: 5121884 (1992-06-01), Noakes
patent: 5184778 (1993-02-01), Noakes
patent: 5222663 (1993-06-01), Noakes et al.
patent: 5222664 (1993-06-01), Noakes et al.
patent: 5704554 (1998-01-01), Cooper et al.
patent: 5788166 (1998-08-01), Valaskovic et al.
patent: 5810265 (1998-09-01), Cornelius et al.
patent: 5927618 (1999-07-01), Jefferies et al.
patent: 5932011 (1999-08-01), Noakes et al.
patent: 6068199 (2000-05-01), Coffee
patent: 6079634 (2000-06-01), Noakes et al.
patent: 6105571 (2000-08-01), Coffee
patent: 6138671 (2000-10-01), Noakes et al.
patent: 6145391 (2000-11-01), Pui et al.
patent: 6286725 (2001-09-01), Gerber
patent: 6302331 (2001-10-01), Dvorsky et al.
patent: 6311903 (2001-11-01), Gaw et al.
patent: 6318640 (2001-11-01), Coffee
patent: 6318647 (2001-11-01), Gaw et al.
patent: 6368079 (2002-04-01), Peters et al.
patent: 6386195 (2002-05-01), Coffee
patent: 6397838 (2002-06-01), Zimlich et al.
patent: 6454193 (2002-09-01), Busick et al.
patent: 6457470 (2002-10-01), Coffee
patent: 6491897 (2002-12-01), Freund et al.
patent: 6503481 (2003-01-01), Thurston et al.
patent: 6595208 (2003-07-01), Coffee et al.
patent: 6660715 (2003-12-01), Klibanov
patent: 6684879 (2004-02-01), Coffee et al.
patent: 6796303 (2004-09-01), Zimlich et al.
patent: 6827559 (2004-12-01), Peters et al.
patent: 6880554 (2005-04-01), Coffee
patent: 2003/0216471 (2003-11-01), Dahl et al.
patent: 2004/0001655 (2004-01-01), Proicou et al.
patent: 2004/0195403 (2004-10-01), Atterbury et al.
patent: 2006/0261179 (2006-11-01), Davies et al.
patent: 2008/0308095 (2008-12-01), Trees et al.
patent: 2008/0308580 (2008-12-01), Gaydos et al.
patent: 0 054 730 (1982-06-01), None
patent: 261827 (1926-11-01), None
patent: 2 018627 (1979-10-01), None
patent: WO 99/07478 (1999-02-01), None
patent: 03072263 (2003-09-01), None
patent: 2004054627 (2004-07-01), None
patent: WO 20074/078244 (2004-09-01), None
patent: 2007094835 (2007-08-01), None
Cloupeau, M. et al.; “Electrohydrodynamic Spraying Functioning Modes: A Critical Review”; J Aerosol Sci.; 1994; 25(6); pp. 1021, 1025-1026.
International Search Report No. PCT/US2006/044626; Mar. 26, 2007.

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