Haptic for accommodating intraocular lens
US7713299B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2006 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Jan 31, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0018
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intraocular lens is disclosed, with an optic that changes shape in response to a deforming force exerted by the zonules of the eye. A haptic supports the optic around its equator and couples the optic to the capsular bag of the eye. The region of contact between the optic and the haptic extends into the edge of the optic, similar to the interface between a bicycle tire and the rim that holds it in place. The haptic may be stiffer than the optic. The haptic may have the same refractive index as the optic. The haptic may include a saddle-shaped portion in contact with the adjustable optic, with a convex profile along an optical axis; and a concave profile in a plane perpendicular to the optical axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.