Accommodating intraocular lens with integral capsular bag ring
US7025783B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2003 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/1699
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intraocular lens (IOL) includes an optic for focusing light, an outer ring for supporting the optic in a capsular bag of an eye and a plurality of radially spaced apart, elongated intermediate members connecting the optic to the outer ring. The intermediate members are configured to convert radial forces exerted by the capsular bag on the support ring into axial movement of the optic, allowing a presbyopic patient to more effectively focus on near objects. The outer ring is preferably contoured to conform to the portion of the capsular bag between the anterior and posterior zonules, and has sufficient axial thickness to contact both sets of zonules. In addition, the edge of the ring includes at least one sharp edge corner to prevent epithelial cell growth toward the optic. In addition, the outer ring may include weakened areas configured to allow consistent and repeatable deformation in response to compressive forces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.