Voltage modulation of advanced electrochemical delivery system

Details Voltage modulation of advanced electrochemical delivery system Voltage modulation of advanced electrochemical delivery system

2005-03-29

2005-03-29

Phasge, Arun S. (Department: 1753)

Chemistry: electrical and wave energy

Processes and products

Electrophoresis or electro-osmosis processes and electrolyte...

C204S630000, C604S020000

Reexamination Certificate

active

06872292

ABSTRACT:
An electro-osmotic cell capable of substantially reducing zero-current transport is disclosed, wherein the cell includes a cell housing having a first half cell and a second half cell, with an ion selective membrane therebetween, a first electrode positioned within the first half cell, a second electrode positioned within the second half cell, an electrolyte in electrical communication with the first electrode and the second electrode, and a wiring apparatus electrically connecting the first electrode and the second electrode, wherein the wiring apparatus has one or more structures used for counteracting salt concentration increases within the electro-osmotic cell. Such a cell may be used within an electro-osmotic fluid delivery device, along with a fluid inlet, a piston member adjacent the electro osmotic cell, and a drug reservoir adjacent the piston member, wherein the drug reservoir includes a sealed compartment having an exit port. A method for using such a device is similarly disclosed.

REFERENCES:
patent: 4886514 (1989-12-01), Maget
patent: 6289241 (2001-09-01), Phipps

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