Abstract: Brush copolymers containing (a) monomeric units derived from an ethylenically unsaturated-containing monomer containing one or more boronic acid moieties; and (b) monomeric units derived from an ethylenically unsaturated-containing macromonomer having hydrophilic units and boronic acid units are disclosed.

Abstract: Packaging systems for storing ophthalmic devices such as contact lenses and to methods for packaging such ophthalmic devices with solutions to improve the comfort of the lenses during wear are disclosed. A packaging system includes an ophthalmic device stored in an aqueous packaging solution comprising a brush copolymer comprising (a) monomeric units derived from an ethylenically unsaturated monomer containing one or more boronic acid moieties; and (b) monomeric units derived from an ethylenically unsaturated-containing hydrophilic macromonomer.

Abstract: Packaging systems for storing ophthalmic devices such as contact lenses and to methods for packaging such ophthalmic devices with solutions to improve the comfort of the lenses during wear are disclosed.

Abstract: Brush copolymers containing (a) monomeric units derived from an ethylenically unsaturated monomer containing one or more boronic acid moieties and; and (b) monomeric units derived from an ethylenically unsaturated-containing hydrophilic macromonomer are disclosed.

Abstract: Brush copolymers containing (a) monomeric units derived from an ethylenically unsaturated-containing monomer containing one or more boronic acid moieties; and (b) monomeric units derived from an ethylenically unsaturated-containing macromonomer having hydrophilic units and boronic acid units are disclosed.

Abstract: Disclosed are biomedical devices having a hydrophilic coating on a portion of a surface thereof, the biomedical device comprising: (a) a biomedical device obtained from a polymerization product of a monomeric mixture comprising (i) a polymerizable monomer containing a boronic acid moiety and an electron withdrawing moiety; and (ii) a biomedical device-forming comonomer; and (b) a hydrophilic reactive polymer having complementary reactive functionalities along the polymer chain, wherein the complementary reactive functionalities along the polymer chain of the hydrophilic reactive polymer of (b) bind with the boronic acid moieties of the biomedical device of (a), thereby producing a biocompatible coating which can be removed and re-applied to restore the surface properties of the biomedical device to substantially as-new condition. Methods for treating the biomedical device are also disclosed.

Abstract: This invention is directed toward surface treatment of a device. The surface treatment comprises the attachment of interactive segmented block copolymers to the surface of the substrate by means of interactive functionalities of the segmented block copolymer reacting with complementary surface functionalities in monomeric units along the polymer substrate. The present invention is also directed to a surface modified medical device, examples of which include contact lenses, intraocular lenses, vascular stents, phakic intraocular lenses, aphakic intraocular lenses, corneal implants, catheters, implants, and the like, comprising a surface made by such a method.

Abstract: Biomedical devices are provided herein which are formed from a polymerization product of a monomeric mixture comprising (a) a polymerizable monomer containing a boronic acid moiety and an electron withdrawing moiety; and (b) a biomedical device-forming comonomer.

Abstract: Disclosed are biomedical devices having a hydrophilic coating on a portion of a surface thereof, the biomedical device comprising: (a) a biomedical device obtained from a polymerization product of a monomeric mixture comprising (i) a polymerizable monomer containing a boronic acid moiety and an electron withdrawing moiety; and (ii) a biomedical device-forming comonomer; and (b) a hydrophilic reactive polymer having complementary reactive functionalities along the polymer chain, wherein the complementary reactive functionalities along the polymer chain of the hydrophilic reactive polymer of (b) bind with the boronic acid moieties of the biomedical device of (a), thereby producing a biocompatible coating which can be removed and re-applied to restore the surface properties of the biomedical device to substantially as-new condition. Methods for treating the biomedical device are also disclosed.

Abstract: Brush copolymers containing (a) monomeric units derived from an ethylenically unsaturated monomer containing one or more boronic acid moieties and; and (b) monomeric units derived from an ethylenically unsaturated-containing hydrophilic macromonomer are disclosed.

Abstract: Packaging systems for storing ophthalmic devices such as contact lenses and to methods for packaging such ophthalmic devices with solutions to improve the comfort of the lenses during wear are disclosed. A packaging system includes an ophthalmic device stored in an aqueous packaging solution comprising a brush copolymer comprising (a) monomeric units derived from an ethylenically unsaturated monomer containing one or more boronic acid moieties; and (b) monomeric units derived from an ethylenically unsaturated-containing hydrophilic macromonomer.

Abstract: Packaging systems for storing ophthalmic devices such as contact lenses and to methods for packaging such ophthalmic devices with solutions to improve the comfort of the lenses during wear are disclosed.

Abstract: Brush copolymers containing (a) monomeric units derived from an ethylenically unsaturated-containing monomer containing one or more boronic acid moieties; and (b) monomeric units derived from an ethylenically unsaturated-containing macromonomer having hydrophilic units and boronic acid units are disclosed.

Abstract: Disclosed are surface modified biomedical devices having a coating on a surface thereof, the coating comprising an inner layer comprising a polymer comprising monomeric units derived from an ethylenically unsaturated monomer containing a boronic acid moiety, and an outer layer comprising a hydrophilic hydrolyzed reactive polymer comprising monomeric units derived from an ethylenically unsaturated containing monomer having hydrolyzable reactive functionalities.

Abstract: This invention is directed toward surface treatment of a device. The surface treatment comprises the attachment of interactive segmented block copolymers to the surface of the substrate by means of interactive functionalities of the segmented block copolymer reacting with complementary surface functionalities in monomeric units along the polymer substrate. The present invention is also directed to a surface modified medical device, examples of which include contact lenses, intraocular lenses, vascular stents, phakic intraocular lenses, aphakic intraocular lenses, corneal implants, catheters, implants, and the like, comprising a surface made by such a method.

Abstract: A configurable PLL architecture having multiple detection elements. The configurable PLL circuit includes a first detector for providing a first differential signal, a second detector for providing a second differential signal, a third detector for providing a third differential signal, and a selection circuit for enabling at least one of the first, second and third detectors. The PLL circuit also includes a multiplexer for receiving at least one differential signal from a corresponding enabled detector, and for providing a multiplexed differential signal output. In operation, an operating mode is selected, and one or more detectors are enabled for operation with one or more input reference signals. The outputs of the enabled detectors is received by the multiplexer to complete the operation of the selected operating mode.

Abstract: A configurable multiplexing circuit and arrangement suited for phase locked loop applications. The multiplexing circuit includes an EX-OR element, a multiplexer element and a summer element. Each element is configured for receiving a particular type of detection signal output, as an input for one of multiple selectable multiplexing operations. The multiplexing circuit further includes a selection signal input, coupled to the EX-OR element, the multiplexer element and the summer element, for receiving a selection signal that enables one or more of the EX-OR element, the multiplexer element, and the summer element. Non-enabled elements are powered down to eliminate jitter and performance penalties.