ELECTRO-OSMOTIC PUMPS, SYSTEMS, METHODS, AND COMPOSITIONS

WIPO Patent Application WO/2011/112723

A3

The present disclosure relates, according to some embodiments, to compositions, methods, devices, and systems for delivering a composition (e.g., a fluid composition) to a subject. For example, the present disclosure relates to non-gassing, direct current (DC), electro-osmotic pumps in some embodiments. A pump may comprise an anode (e.g., a porous silver/silver oxide anode), a cathode (e.g., a porous silver/silver oxide cathode), and a membrane (e.g., a porous ceramic membrane) positioned at least partially between the anode and the cathode in some embodiments. A pump system may comprise an electro-osmotic pump, a reservoir comprising a pump fluid chamber in fluid communication with the electro- osmotic pump and a delivery fluid chamber in fluid communication with the electro-osmotic pump; a controller assembly in electrical communication with the anode and the cathode; and a cannula and/or a needle in fluid communication with the delivery fluid chamber. A pump fluid may comprise water and/or a delivery fluid may comprise a drug, in some embodiments.

SHIN WOONSUP (KR)
HELLER ADAM (US)
NAGARALE RAJARAM (US)

PCT/US2011/027760

April 19, 2012

March 09, 2011

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UNIV TEXAS (US)
SHIN WOONSUP (KR)
HELLER ADAM (US)
NAGARALE RAJARAM (US)

A61M5/142; F04B19/00; G01N27/447

US7231839B2	2007-06-19
US20080033338A1	2008-02-07
EP1811257A1	2007-07-25

SHIM ET AL.: "A miniature, Nongassing Electroosmotic Pump Operating at 0.5V", J. AM. CHEM. SOC., vol. 133, no. 8, 7 February 2011 (2011-02-07), pages 2374 - 2377
See also references of EP 2544733A4

BIRKENMEIER, Guy, F. (401 Congress Ave. Suite 320, Austin TX, US)

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