Iontophoretic contact lens
US9937074B2 · kind B2 · utility
1Cited by
18References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2016 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Jan 27, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/044
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Contact lenses are provided for ocular iontophoretic therapy. Implementations include a reservoir adapted to contain a charged therapeutic compound, a current source providing iontophoretic current to the charged therapeutic composition to affect delivery of the charged therapeutic composition into an eyeball, and a sensing circuit controlling the current source to maintain a selected pH range of the charged therapeutic composition. Alternate embodiments include active, sacrificial electrodes for generating ions sufficient to provide electromotive repulsive force to the charged compound to effect transport into ocular tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.