Intraocular implant for correcting short-sightedness
US6110202A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1998 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Aug 14, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/1681
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A posterior-chamber intraocular implant for correcting short-sightedness in a phakic eye. Comprises a substantially circular optical portion (30) consisting of a front dioptric surface (40) and a rear dioptric surface (42) and a haptic portion. The haptic portion includes two extensions (32, 34) joined to the edge of the optical portion, of which the ends are spaced apart by a distance greater than the diameter of a dilated pupil, and two portions (52, 54) for attachment, the front surface of each extension comprising a toroidal portion (44) joined to the front dioptric surface, the rear surface of each extension comprising a toroidal portion (46) forming portion engaging the lens circumference and connected to the rear dioptric surface and a connecting portion (48), the rear dioptric surface and the toroidal portions of the rear surfaces of said extensions defining a recess (50) for freely altering the curvature of the front lens surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.