Low-water content acrylate-acrylamide copolymers for ophthalmic devices

US9921341B2 · kind B2 · utility

Assignee

• Novartis AG · CH

Inventors

• Walter R. Laredo · Fryeburg, US
• Ali E. Akinay · Mansfield, US
• Xuwei Jiang · Arlington, US
• David L. Jinkerson · Benbrook, US
• Vincent Nguyen · Anaheim, US
• Douglas C. Schlueter · Azle, US

Key dates

• Filing date: Dec 14, 2015
• Grant date: Mar 20, 2018
• Expiry date: Feb 25, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61L2430/16
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Acrylate-acrylamide copolymers are disclosed. They are rigid and glassy in dry state at room temperature (from about 23° C. to about 28° C.), but are soft and very deformable and have a high refractive index, a high glistening resistance and a low aging-related surface light scattering in fully hydrated state. They are particularly suitable for making wet-packed intraocular lenses (IOLs) which can be delivered through sub 2.0 mm incisions.