Voltage modulation of advanced electrochemical delivery system
US6872292B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2003 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Feb 17, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/14513
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.