Nanopump system

Details Nanopump system Nanopump system

2005-10-18

2005-10-18

Lucchesi, Nicholas D. (Department: 3763)

Surgery

Controlled release therapeutic device or system

Implanted dynamic device or system

Reexamination Certificate

active

06955670

ABSTRACT:
A self-contained delivery device for delivery a selected volume of stored electrolyte solution at selected time intervals is disclosed. The device includes a housing having a delivery port, a chamber containing an upstream supply reservoir for holding a quantity of electrolyte solution, a downstream delivery reservoir for receiving electrolyte solution from the supply reservoir and, disposed between the two reservoirs, a membrane having a plurality of flow-through channels extending between the two reservoirs. A pair of electrodes placed in the chamber on either side of the membrane and controlled by a controller contained within the housing for pumping selected quantities of the electrolyte solution at selected time intervals. The device includes a chamber, and a membrane disposed in said chamber and having a channel extending between an upstream chamber region, where the said channel has a selected minimum cross-sectional dimension in the range between 2 and 100 nm.

REFERENCES:
patent: 4221219 (1980-09-01), Tucker
patent: 4639244 (1987-01-01), Rizk et al.
patent: 5041107 (1991-08-01), Heil, Jr.

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