Surface modified contact lenses
AssigneeSemprus Biosciences Corp.
InventorsZheng Zhang, Alonzo Cook, Karen Ann Schultz, Jun Li, Matt Skinner, B. Andre′ Weinstock, Linda M. Guiney, Hao Wang, Christopher R. Loose, Arthur Coury
Life of this patent
Estimating the term…
Abstract
Medical devices having a wettable, biocompatible surface are described herein. Processes for producing such devices are also described.
Claims25
A contact lens comprising a silicon-containing polymer substrate having a surface and a polymeric surface modification on the substrate surface, wherein the polymeric surface modification extends a maximum penetration depth of 45% of the thickness of the lens below the surface of the lens in a direction normal to the surface of the lens, the advancing contact angle of the polymeric surface modification is less than about 30 degrees and the polymer substrate and polymeric surface modification have an oxygen permeability of greater than about 50 barrers.
Dependencies are inferred from the claim text.