Irritation-reducing ocular iontophoresis device
US7548778B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 8, 2007 |
| Grant date | Jun 16, 2009 |
| Priority date | — |
| Expiry date | Jun 7, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0412
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides an ocular iontophoresis device for delivering medication, the device comprising a medication reservoir suitable for being positioned on the eye, at least one medication in solution in the reservoir, an active electrode disposed in the reservoir, and a passive electrode, the device including at least one medication dissolved in non-saline water, the said solution having a pH lying in the range 6.5 to 8.5, the medication having a pKa lying in the range about 5.5 to about 9.5 and includes an active principle which is associated with an additive, such as a dendrimer, a polymer, a nanoparticle, a microsphere, a liposome, or an emulsion, and having an ionic form of valency greater than or equal to 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.