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:
Jul. 28, 2009
Filed:
Oct. 31, 2007
Lynn Cook Winterton, Alpharetta, GA (US);
Juergen Vogt, Fribourg, CH;
John Martin Lally, Lilburn, GA (US);
Friedrich Stockinger, Courtepin, CH;
Lynn Cook Winterton, Alpharetta, GA (US);
Juergen Vogt, Fribourg, CH;
John Martin Lally, Lilburn, GA (US);
Friedrich Stockinger, Courtepin, CH;
Novartis AG, Basel, CH;
Abstract
Biomedical devices, such as ophthalmic lenses, and methods of making such devices having a surface coating including at least one polyionic layer. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. The coating process may be applied a plurality of times to achieve a multi-layer coating on the lens surface. A particularly preferred embodiment is a contact lens comprising a highly oxygen permeable hydrophobic core coated with a 5 to 20 bilayers of hydrophilic polyionic materials.