Haptic for accommodating intraocular lens
US9554893B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2012 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Aug 8, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/169
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A haptic is provided for use in an accommodating intraocular lens. The haptic has multiple filaments, each connected to the edge of the optic at one end. Each filament has a shape that conforms to an equatorial region of the capsular bag. The haptic couples the forces exerted by the capsular bag of the eye during accommodation radially to the edge of the optic, produce a diametric expansion or compression of the optic. This diametric motion distorts the optic, producing a change in any or all of the anterior radius, the posterior radius, and the thickness. These changes affect the power of the lens and/or location of the image. The haptic may optionally have a thin membrane joining the filaments at the optic end, and may optionally have a connecting ring that joins the filaments at the end opposite that of the optic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.