Corneal-shaping electrode
US4326529A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1979 |
| Grant date | Apr 27, 1982 |
| Priority date | — |
| Expiry date | Dec 5, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M3/0283
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The disclosure relates to a circulating saline electrode for changing corneal shape in eyes. The electrode comprises a tubular nonconductive electrode housing having an annular expanded base which has a surface substantially matched to a subject corneal surface. A tubular conductive electrode connected to a radiofrequency generating source is disposed within the electrode housing and longitudinally aligned therewith. The electrode has a generally hemispherical head having at least one orifice. Saline solution is circulated through the apparatus and over the cornea to cool the corneal surface while radiofrequency electric current emitted from the electrode flows therefrom through the cornea to a second electrode, on the rear of the head. This current heats the deep corneal stroma and thereby effects corneal reshaping as a biological response to the heat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.