Durable flexible attachment components for accommodating intraocular lens
US6558420B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2000 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Mar 25, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0053
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An accommodating intraocular lens including a higher diopter positive intraocular lens and a lower diopter negative intraocular lens. The positive intraocular lens includes a positive optic portion having an outer peripheral edge and two or more polyurethane elastomer flexible attachment components. The negative intraocular lens includes a negative optic portion having an outer peripheral edge and two or more polyurethane elastomer flexible attachment components. Each flexible attachement component is durable and formed to have specific flexibility characteristics so as to be less resistant to bending in a plane generally parallel to an eye's optical axis than in a plane generally perpendicular to the eye's optical axis. The subject durable accommodating intraocular lens enables axial displacement of the positive optic portion with respect to the negative optic portion along the eye's optical axis under a compression force. The flexible attachment components are durable to allow dependable flexation thereof millions of times during a patient's lifetime. Through this flexation of the flexible attachment components and axial displacement of the positive optic portion with respect to …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.