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US2008174035 (A1), filed Jun 06, 2007 , published Jul 24, 2008 - WINTERTON LYNN COOK

The invention provides a cost-effective method for making a silicone hydrogel contact lens which has a good wettable coating with a good durability.

Biomedical devices having improved surface characteristics

US2008129956 (A1), filed Oct 31, 2007 , published Jun 05, 2008 - LALLY JOHN MARTIN

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,...

Medical devices having antimicrobial coatings thereon

US2008260804 (A1), filed Jun 18, 2008 , published Oct 23, 2008 - LALLY JOHN MARTIN

The present invention provides a medical device, preferably a contact lens, which comprises an antimicrobial coating including at least one layer of polyquat of formula (I) or (II). The antimicrobial coating on the medical device of the invention has a high...

Lens plasma coating system

US7078074 (B2), filed Feb 23, 2005 , published Jul 18, 2006 - NOVARTIS AG

The invention provides a method for plasma coating of optical lenses, particularly lenses made of silicone-containing polymer. The method of the invention comprising selectively depressurizing and pressurizing an entry hold chamber and an exit hold chamber...

Lens plasma coating system

US6881269 (B2), filed Jul 23, 2001 , published Apr 19, 2005 - NOVARTIS AG

The invention provides a system and method for plasma coating of an optical lens, particularly lenses made of silicone-containing polymer. A system of the invention comprises an entry chamber, a coating chamber downstream from the entry chamber, and an exit...

Lens plasma coating system

US2002025389 (A1), filed Jul 23, 2001 , published Feb 28, 2002

A system and method for treating the surface of an optical lens is provided. A predetermined pressure and a plasma gas are maintained in a coating chamber. A plasma cloud of gas is established between electrodes in the chamber. An entry chamber is upstream...

Single-dip process for achieving a layer-by-layer-like coating

US7022379 (B2), filed Jun 09, 2004 , published Apr 04, 2006 - NOVARTIS AG

A method of forming a coating of polyionic materials in a layer-by-layer-like manner onto a polymeric material is provided. A polymeric material, such as a contact lens, can be dipped once into a solution of polyionic materials such that layers of polyionic...

Process for surface modifying substrates and modified substrates resulting therefrom

US7040756 (B2), filed Apr 09, 2003 , published May 09, 2006 - NOVARTIS AG

The present invention generally relates to a method of modifying the surface of substrates such as contact lenses and other biomedical articles by at least partially coating the surfaces of such substrates with a polymeric tie layer having reactive sites....

Method and apparatus for applying a coating to an ophthalmic lens

US2002182316 (A1), filed May 22, 2002 , published Dec 05, 2002

The invention provide a method for applying a coating to an ophthalmic lens or a mold for making the ophthalmic lens or a medical device other than ophthalmic lens. The method comprises spraying at least one layer of a coating liquid onto an ophthalmic lens...

Method for applying an LbL coating onto a medical device

US2004047979 (A1), filed Sep 03, 2003 , published Mar 11, 2004

The present invention provides an improved LbL-coating process for modifying the surface of a medical device, preferably an ophthalmic device, more preferably a contact lens. An LbL coating on a contact lens, which is prepared according to the process of the...

Method for applying an LbL coating onto a medical device

US6896926 (B2), filed Sep 03, 2003 , published May 24, 2005 - NOVARTIS AG

The present invention provides an improved LbL-coating process for modifying the surface of a medical device, preferably an ophthalmic device, more preferably a contact lens. An LbL coating on a contact lens, which is prepared according to the process of the...

LbL-coated medical device and method for making the same

US6926965 (B2), filed Sep 03, 2003 , published Aug 09, 2005 - NOVARTIS AG

The present invention provides a medical device, preferably an ophthalmic device, more preferably a contact lens, which comprises a core material and a biocompatible LbL coating non-covalently attached to said core material. The biocompatible LbL coating...

Methods of modifying surface characteristics

US6451871 (B1), filed Apr 27, 2000 , published Sep 17, 2002 - NOVARTIS AG

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,...

Single-dip process for achieving a layer-by-layer-like coating

US6793973 (B2), filed Feb 01, 2001 , published Sep 21, 2004 - NOVARTIS AG

A method of forming a coating of polyionic materials in a layer-by-layer-like manner onto a polymeric material is provided. A polymeric material, such as a contact lens, can be dipped once into a solution of polyionic materials such that layers of polyionic...

Biomedical devices having improved surface characteristics

US7297725 (B2), filed Jul 24, 2002 , published Nov 20, 2007 - NOVARTIS AG

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,...