Abstract:
Described and illustrated are various insertion instruments, cap, plug, method and kit. In one aspect, a cap for a punctal insertion instrument is shown and described. In a further aspect, a punctum plug insertion system that includes the instrument and the cap is provided. In yet a further aspect, a method of releasing a punctum plug from a plug holder is provided. Additionally, a kit that contains the plug insertion instrument, cap, plugs, and instructions for use is provided.
Abstract:
This invention discloses methods and apparatus for providing a dispensing a material with an active agent into an ophthalmic device. Some embodiments include dispensing high viscous materials into a punctal plug.
Abstract:
A prosthetic spinal disc nucleus pulposus formed from a hydrogel formed by crosslinking a macromer having a polymeric backbone comprising units with a 1,2-diol or 1,3-diol structure and at least two pendant chains bearing crosslinkable groups and an amphiphilic comonomer.
Abstract:
An hydratable porous polymer comprising a polymerized polyorganosiloxane macromonomer of formula I Q—[M—L]c—M—Q (I) wherein c is in the range of from 0 to 5, preferably in the range of from 0 to 3; M may be the same or different and is a difunctional block of molecular weight in the range of from 100 to 8000 and wherein at least one M comprises a residue from a difunctional polymer or copolymer comprising siloxane repeat units of formula II where R1 and R2 may be the same or different and are selected from the group consisting of hydrogen, optionally substituted alkyl, alkenyl, alkynyl, aryl, haloalkyl, haloalkenyl, haloalkynyl, haloaryl, heterocyclyl, and haloheterocyclyl; L is a difunctional group; and Q may be the same or different and is a polymerizable group.
Abstract:
The present invention relates to porous polymers comprising a perfluoropolyether unit, to a process for producing such porous polymers, in particular to a process for polymerising or copolymerising monomers incorporating perfluoropolyethers to form porous polymers, to articles made of or comprising porous polymers comprising a perfluoropolyether unit, such as membranes or ophthalmic devices, and to the use of porous polymers comprising perfluoropolyether units as articles, such as membranes or ophthalmic devices. The perfluoropolyether units are preferably of the formula (PFPE):--OCH.sub.2 CF.sub.2 O(CF.sub.2 CF.sub.2 O).sub.x (CF.sub.2 O).sub.y CF.sub.2 CH.sub.2 O-- wherein the CF.sub.2 CF.sub.2 O and CF.sub.2 O units may be randomly distributed or distributed as blocks throughout the chain and wherein x and y may be the same or different such that the molecular weight of the perfluorinated polyether is in the range of from 242 to 4,000. The porous polymers comprising one or more perfluoropolyether units having a water content when fully swollen in water which is higher than that of the same polymer if polymerized under conventional conditions, and are suitable for application, e.g., as soft contact lenses.
Abstract:
The invention provides punctal plugs for the delivery of active agent to one or both of the tear fluid of the eye and to the nasolacrimal duct. The plugs of the invention have a body, a reservoir contained within the body, and optionally a collarette. The reservoir has at least one opening and contains a polymeric material and at least one active agent.
Abstract:
Ionic ophthalmic devices, methods of treating chemoattractant cytokine receptor 2 (CCR2) mediated inflammatory conditions, and methods of making such devices are disclosed herein.
Abstract:
Described and illustrated are various insertion instruments, cap, plug, method and kit. In one aspect, a cap for a punctal insertion instrument is shown and described. In a further aspect, a punctum plug insertion system that includes the instrument and the cap is provided. In yet a further aspect, a method of releasing a punctum plug from a plug holder is provided. Additionally, a kit that contains the plug insertion instrument, cap, plugs, and instructions for use is provided.
Abstract:
Biodegradable biocompatible hydrogels based on poly(vinyl alcohol) and methods for their preparation. The methods for preparation of the hydrogels involve the use of prepolymers. The prepolymers have a PVA backbone and pendant chains that include a polymerizable group. In one embodiment, the pendant chains also include a biodegradable region. In another embodiment, biodegradable regions are incorporated into the hydrogel during its formation.
Abstract:
Compositions comprising macromers having a backbone comprising units having a 1,2-diol and/or 1,3-diol structure for tissue bulking and coating. Such polymers include poly(vinyl alcohol) (PVA) and hydrolyzed copolymers of vinyl acetate, for example, copolymers with vinyl chloride, N-vinylpyrrolidone, etc. The backbone polymer contains pendant chains bearing crosslinkable groups and, optionally, other modifiers. When crosslinked, the macromers form hydrogels having many properties advantageous for use as agents to bulk and coat tissues.