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| Number | Title | Issue Date |
| 8183325 | Perfluorocyclobutane copolymers The present invention provides copolymer having repeating units based on polyoxyalkylene radicals, polysiloxane radicals and perfluorocyclobutane radicals. The copolymers are useful as biomedical devices such as contact lenses or intraocular lenses. ... | 05/22/2012 |
| 8085392 | Bubble reduction system An ophthalmic device forming system includes an inspection station configured to receive a plurality of ophthalmic devices, a fluid supply fluidly connected to the inspection station, the fluid supply containing a working fluid, and a heat source fluidly connected b... | 12/27/2011 |
| 8071661 | Biomedical devices Biomedical devices are provided herein which are formed from a polymerization product of a mixture comprising (a) a copolymer which is the reaction product of one or more polymerizable polyhydric alcohols and one or more polymerizable fluorine-containing monomers; a... | 12/06/2011 |
| 8071660 | Surface modified biomedical devices A method for making a surface modified biomedical device is disclosed, the method comprising contacting a surface of a biomedical device with a copolymer which is the reaction product of one or more polymerizable polyhydric alcohols and one or more polymerizable flu... | 12/06/2011 |
| 8035809 | Bubble removal system A bubble removal system includes an inspection cell configured to receive an ophthalmic device and a volume of working fluid. The system also includes a vacuum device configured to form a substantially fluid-tight seal with the inspection cell and to direct a negati... | 10/11/2011 |
| 7988988 | Contact lenses with mucin affinity A biomedical device, such as a contact lens, has a surface linked to a polymer comprising boronic acid moieties. The boronic acid monomeric units may be derived from an ethylenically unsaturated monomer containing a boronic acid moiety, such as a vinylphenyl boronic... | 08/02/2011 |
| 7957059 | Device and method for demonstrating optical effects An optical system includes two lens systems, one that provides viewing of an object with relatively no spherical aberration, and another that provides viewing of the object with significant spherical aberration. Preferably, both lens systems provide viewing of the o... | 06/07/2011 |
| 7919136 | Surface treatment of biomedical devices A surface modified biomedical device is provided comprising a biomedical device having a coating on at least a portion thereof, the coating comprising a polymer or copolymer having one or more repeating units of the formula: | 04/05/2011 |
| 7884141 | Biomedical devices Biomedical devices are provided herein which are formed from a polymerization product of a monomeric mixture comprising (a) one or more esterified aminoalcohol monomers; and (b) one or more biomedical device-forming monomers. ... | 02/08/2011 |
| 7832856 | Coatings and solutions for contact lenses A contact lens is coated with a first polymer, such as a boronic acid-containing copolymer, having affinity to mucin, and a second polymer. The second polymer improves initial comfort of the contact lens. During wear of the contact lens, the second polymer is remove... | 11/16/2010 |
| 7704417 | Heated mold tooling A method for varying a radius of an optical quality surface of a casting mold formed in a tooling cavity, the tooling cavity at least partially defined by an optical tool having an optical quality surface of a given radius, includes imparting a compressive stress wi... | 04/27/2010 |
| 7691917 | Silcone-containing prepolymers Prepolymers comprising at least one block of Formula II and terminated with a polymerizable ethylenically unsaturated radical are useful in hydrogel materials are disclosed: wherein n, R, R1, R2 and X | 04/06/2010 |
| 7582704 | Biomedical devices Biomedical devices formed from a polymerization product of a monomeric mixture comprising one or more monomers comprising at least two trifluorovinyl groups are provided. Also provided are biomedical devices formed from a network of a polymer comprising one or more ... | 09/01/2009 |
| 7544751 | Polymerization products and biomedical devices containing same Polymerization products formed from a monomeric mixture comprising (a) one or more first monomers of the general formula I: A-L-R1—(X—CF═CF2)n (I) wherein R1 represents one or more inertly su... | 06/09/2009 |
| 7538160 | Trifluorovinyl aromatic containing poly(alkyl ether) prepolymers The present invention provides prepolymers based on poly(alkyl ethers) having terminal triflurovinyl aromatic containing groups and polymers produced from such polymers. The prepolymers and polymers are useful as biomedical devices such as contact lenses or intraocu... | 05/26/2009 |
| 7534836 | Biomedical devices Biomedical devices are provided herein which are formed from a polymerization product of a monomeric mixture comprising one or more monomers comprising one or more trifluorovinyl groups, e.g., a perfluorocyclobutane containing polymer. ... | 05/19/2009 |
| 7425600 | Polymerization products and biomedical devices containing same Polymerization products formed from a monomeric mixture comprising (a) one or more first monomers of the general formula I: A-L-R1—(X—CF═CF2)n (I) wherein R1 represents one or more inertly su... | 09/16/2008 |
| 7402634 | Perfluorocyclobutane copolymers The present invention provides copolymer having repeating units based on polyoxyalkylene radicals, polysiloxane radicals and perfluorocyclobutane radicals. The copolymers are useful as biomedical devices such as contact lenses or intraocular lenses. ... | 07/22/2008 |
| 7366580 | Production line control using shift registers for contact lens manufacture A method for controlling a production line for the manufacture and/or packaging of contact lenses which production line simultaneous by processes at least two lots, the method comprising dividing at least a portion of the production line into a series of cells throu... | 04/29/2008 |
| 7346416 | Contact lens manufacture A method for tracking multiple SKUs of contact lenses in a manufacturing line comprising the steps of: a) molding a plurality of contact lenses, b) providing a plurality of carriers each having a carrier indicator, c) inspecting each contact lens to determine inform... | 03/18/2008 |
| D543103 | Contact lens blister package | 05/22/2007 |
| 7211272 | Drug delivery device A drug delivery device for placement in the eye includes a drug core comprising a pharmaceutically active agent, and a holder that holds the drug core. The holder is made of a material impermeable to passage of the active agent and includes an opening for passage of... | 05/01/2007 |
| 7172285 | Contact lens with high-order compensation for non-axisymmetric structure Contact lenses, such as prism ballasted toric lenses, having anterior and posterior surfaces related by way of non-axisymmetric thickness variation can exhibit a third-order aberration, particularly vertical coma. A wavefront modifier, such as an aspheric surface mo... | 02/06/2007 |
| 7164470 | Depth of field enhancement for optical comparator An optical device inspection system and method employing a narrow aperture on a magnifying objective lens in order to reduce the circle of confusion and increase the depth of field. The smaller aperture resulting in an increase in depth of field allows for simultane... | 01/16/2007 |
| 7147326 | Lens with colored portion and coated surface A lens with a colored portion is composed of a lens-forming polymer having a front lens surface and a back lens surface. A colorant is applied to at least one of these surfaces, and these surfaces may be coated with a coating layer composed of a material different t... | 12/12/2006 |
| 7144528 | Method and mold to control optical device polymerization A method and mold assembly to control the polymerization of a cast optical device. The mold assembly includes at least one mold portion having a non-critical surface with fresnel or diffractive geometry. Alternately, a fresnel lens or diffractive lens may be placed ... | 12/05/2006 |
| 7101920 | Water-soluble blocking wax formulation The invention provides, in a first embodiment, a blocking wax composition. The blocking wax comprises from about 50 to about 90 weight percent of a water-soluble continuous phase and from about 10 to about 50 weight percent of a discontinuous solid phase filler that... | 09/05/2006 |
| 7079239 | Ophthalmic lens transportation and inspection cell A method and apparatus for an inspection cell that allows contact lenses to be presented in a known orientation to an operator or vision system for inspection. The cell can be tipped to allow the inspected lens to be placed into a known pick-cup location upon passin... | 07/18/2006 |
| 7044597 | Multifocal contact lens and method of manufacture thereof An optical zone for a lens has a center optical axis. A first region of the optical zone includes a first optical curve having a first optical axis that is collinear with the center optical axis. A plurality of secondary regions is formed within the first region. Ea... | 05/16/2006 |
| 7037521 | Using a laser for cutting a hole in a capsule for controlled drug delivery A method of fabricating capsules for sustained and controlled drug delivery. An array of capsules of a hydrophobic polymer is subjected to an extraction process to remove low-molecular-weight monomers, oligomers and polymers, and a laser is used to open accurately s... | 05/02/2006 |
| 7021761 | Lens with colored portion and coated surface A lens with a colored portion is composed of a lens-forming polymer having a front lens surface and a back lens surface. A colorant is applied to at least one of these surfaces, and these surfaces may be coated with a coating layer composed of a material different t... | 04/04/2006 |
| 7022813 | Process for purifying and reusing solvent used to remove extractables A process for treating biomedical devices, especially contact lenses, involves contacting polymeric devices containing extractables with a solvent that dissolves and thereby removes the extractables from the device, treating the solvent to remove extractables from t... | 04/04/2006 |
| 6998073 | Pulse extraction of ocular medical devices A method of extracting residual materials from a polymeric, ophthalmic biomedical device, such as a contact lens, by using a mixture comprised of a primary solvent, such as carbon dioxide, and a polar co-solvent, such as isopropanol. By exposing the device to the co... | 02/14/2006 |
| 6986429 | Anti-microbial porous component formed of a polymer material grafted with ammonium units The invention concerns an anti-microbial porous part based on a polymeric material grafted at the surface and in its volume with ammonium motifs with anti-microbial and/or bactericidal and/or fungicide activity, preferably benzalkonium. The invention is characterize... | 01/17/2006 |
| 6958169 | Surface treatment of medical device A method for improving the wettability of a medical device involves: (a) providing a medical device formed from a monomer mixture comprising a hydrophilic device-forming monomer including a copolymerizable group and an electron donating moiety, and a second device-f... | 10/25/2005 |
| 6914247 | Method and apparatus for detecting lenses in package A method and apparatus for detecting under- or over-filling of lenses in packages where ultraviolet radiation is directed to the package. ... | 07/05/2005 |
| 6913715 | Lens molds with protective coatings for production of contact lenses and other ophthalmic products This invention relates to the preparation of molds for the production of contact lenses and other ophthalmic articles. By using an inorganic material to coat the optical surfaces and sidewalls of mold parts made from clear-resin materials, manufacturers can produce ... | 07/05/2005 |
| 6902812 | Surface treatment for silicone hydrogel contact lenses comprising hydrophilic polymer chains attached to an intermediate carbon coating The present invention provides an optically clear, hydrophilic coating upon the surface of a silicone medical device by sequentially subjecting the surface of the lens to plasma polymerization in a hydrocarbon-containing atmosphere and then covalently attaching a pr... | 06/07/2005 |
| 6891010 | Silicone hydrogels based on vinyl carbonate endcapped fluorinated side chain polysiloxanes Vinyl carbonate endcapped polysiloxanes containing a fluorinated side chain are useful as biomaterials, especially hydrogel biomaterials, including contact lens materials. ... | 05/10/2005 |
| 6858218 | Hydrogel from polysiloxane-containing urethane prepolymer, tris (trimethylsiloxy) silylpropyl methacrylate, and a hydrophilic comonomer A polyurethane based prepolymer is provided and useful in biomedical devices which provides high oxygen permeability and superior physical properties. A hydrogel is produced from a comonomer mixture containing a polysiloxane-containing urethane prepolymer, tris(trim... | 02/22/2005 |
