Dual optic, curvature changing accommodative IOL having a fixed disaccommodated refractive state

US9931202B2 · kind B2 · utility

Assignee

• Novartis AG · CH

Inventors

• David Borja · Suwanee, US
• Stephen John Collins · Fort Worth, US
• William J. S. Dolla · Irving, US
• Jian Liu · Keller, US
• Sudarshan B. Singh · Euless, US
• Douglas Brent Wensrich · Bedford, US

Key dates

• Filing date: Mar 8, 2016
• Grant date: Apr 3, 2018
• Expiry date: May 14, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0003
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An IOL includes a fluid optic body having a cavity defined by a sidewall, a deformable optical membrane intersecting the sidewall around an anterior circumference of the sidewall, and a posterior optic intersecting the sidewall around a posterior circumference of the sidewall. The posterior optic includes a central protrusion extending anteriorly into the cavity and the deformable optical membrane includes a ring-shaped protrusion extending posteriorly into a space between the sidewall and the central protrusion. A second optic body is spaced apart from the fluid optic body and coupled thereto via a plurality of struts. Axial compression causes the plurality of struts to deform the sidewall in a manner that increases the diameter of the cavity, modifying a curvature of the deformable optical membrane is modified. Contact between the ring-shaped protrusion and the central protrusion defines a maximum modification to the curvature of the deformable optical membrane.