Perforate electrodiffusion pump
US6409698B1 · kind B1 · utility
50Cited by
14References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Jan 30, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3569
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrodiffusion pump includes a housing having an inlet, drug reservoir, and outlet. A diffusion membrane is disposed between the reservoir and outlet for diffusing the drug outwardly therethrough. Internal and external electrodes are disposed on opposite sides of the membrane. The electrodes are porous, and the external electrode is additionally perforate to expose a portion of the membrane at the outlet. The electrodes are electrically powered for driving drug ions through the membrane under electrophoresis to complement diffusion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.