The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
Jun. 16, 2009
Brian Gerrard Devlin, Suwanee, GA (US);
Arturo Norberto Medina, Duluth, GA (US);
Karen Belinda Sentell, Alpharetta, GA (US);
Stephen Raymond Perreault, Norcross, GA (US);
Mireille Tena, Alpharetta, GA (US);
Brian Gerrard Devlin, Suwanee, GA (US);
Arturo Norberto Medina, Duluth, GA (US);
Karen Belinda Sentell, Alpharetta, GA (US);
Stephen Raymond Perreault, Norcross, GA (US);
Mireille Tena, Alpharetta, GA (US);
Novartis AG, Basel, CH;
Abstract
The present invention provides a method for producing a medical device, preferably an ophthalmic device, more preferably a contact lens, made of a stabilized poly(oxyalkylene)-containing polymeric material. The method of the invention comprises the steps of: curing, in a mold, a composition comprising (a) a prepolymer having at least one poly(oxyalkylene) unit, (b) a biocompatible organic multi-acid or biocompatible salt thereof in an amount sufficient to improve the stability of the poly(oxyalkylene)-containing polymer made from the composition, (c) optionally a photoinitiator or a thermal initiator, and (d) optionally one or more vinylic monomers, to form the medical device being less susceptible to oxidative degradation; and removing the medical device from the mold.