Iontophoresis electrode device
US6330471A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1999 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Feb 10, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0444
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The object of the present invention is to provide an iontophoresis electrode device with superior performance which avoids entrance of metal ions from the electrode into the body, is reusable and can be mass produced at low cost, minimizes gas generation which causes polarization, can notably improve transport current, and can prevent skin injury by pH changes during prolonged application. The iontophoresis electrode device of the present invention has a construction provided with a backing 1 having an edge section 1a around an opening and a packing chamber 4 inside, an electrode terminal 2 situated in the packing chamber 4, a non-adhesive gel 5 containing an electrolyte solvent, depolarizer, pH regulator and drug packed in the packing chamber 4, an inert electrode member 3 covering the base of the electrode terminal 2, and a liner 7 attached to the adhesive layer 6 coated on the edge section 1a and covering the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.