摘要:
Fluorosilicone fluids useful as high-density fluid ocular tamponades and methods of producing, purifying and using the fluorosilicone fluids in an ocular surgical procedure for retinal treatment.
摘要:
The invention provides a biocompatible copolymer produced by polymerizing a mixture comprising at least one monomer selected from the group consisting of itaconates, (meth)acrylates, fumarates and styrenics, at least one ethylenically unsaturated organosiloxane monomer and at least one monomer comprising a POSS compound.
摘要:
The present invention is directed toward the surface treatment of silicone medical devices such as contact lenses and medical implants. In particular, the present invention is directed to a method of modifying the surface of a medical device to increase its biocompatibility or hydrophilicity by coating the device with a hydrophilic polymer by means of reaction between reactive functionalities on the hydrophilic polymer which functionalities are complementary to reactive functionalities on or near the surface of the medical device. The present invention is also directed to a contact lens or other medical device having such a surface coating.
摘要:
Combinations of alkyl siloxy siloxane-containing polymers admixed with liquid polydimethylsiloxanes are excellent non-stinging, non-irritating liquid coating material for forming films which act as conformable bandages adhering to and protecting nails, skin and mucous membrane wounds from abrasion, contamination, and desiccation, while stopping pain from exposed nerve ends and allowing body fluid evaporation.
摘要:
A contact lens solution is provided for wetting, soaking and lubricating of hard contact lenses, particularly those carrying an ionic charge. The solution contains an ionic polymer of cationic or anionic charge that interacts with an oppositely charged surface of a contact lens forming an interfacial polyelectrolyte complex. This polyelectrolyte complex provides increased, long lasting lens wettability leading to a cushioning and lubricating effect with the eyelid and the cornea.
摘要:
An antimicrobial composition with synergistic biocidal activity is described which comprises at least one antimicrobial polymeric biguanide and at least one antimicrobial vicinal diol, said vicinal diol comprises at least one monoalkyl glycol, monoalkyl glycerol, or monoacyl glycerol, to diminish or eliminate biofilm communities. Such synergistic interaction is effective in wound treatment, particularly for chronic wounds, burns and battlefield-induced wounds, as well as for disinfecting non-biological surfaces. The antimicrobial composition can also be prepared as viscous solutions or as gels. The antimicrobial composition may be added to a substrate and dried, such as to a catheter, or to a foam, or to a fiber wound dressing, or coated as a viscous solution or gel upon such devices, to provide controlled release antimicrobial activity.
摘要:
The present invention relates to amphiphilic pressure sensitive adhesives, specifically, pressure sensitive adhesives with amphiphilic copolymers which improve adhesion under moist environment. The amphiphilic copolymers comprise at least one hydrophobic acrylic monomer or oligomer and at least one hydrophilic or amphiphilic monomer or oligomer. The present invention also relates to the use of such adhesives in securing medical devices to human skin.
摘要:
This invention describes the use of polymerizable surfactants as comonomers in forming ophthalmic devices such as contact lenses, intraocular lenses, corneal implants, etc.
摘要:
An intraocular lens with an ordered polymer system contained within a lens capsule or a membrane in the lens capsule. The ordered polymer system includes at least one negatively charged copolymer comprising hydrophilic groups, anionic groups and hydrophobic groups, and at least one positively charged copolymer comprising hydrophilic groups, cationic groups and hydrophobic groups. The at least one negatively charged copolymer and the at least one positively charged copolymer are associatively arranged through non-covalent interactions in the lens capsule or the membrane.
摘要:
The present invention relates to polymeric compositions useful in the manufacture of biocompatible medical devices. More particularly, the present invention relates to certain cationic monomers capable of polymerization to form polymeric compositions having desirable physical characteristics useful in the manufacture of ophthalmic devices. Such properties include the ability to extract the polymerized medical devices with water. This avoids the use of organic solvents as is typical in the art. The polymer compositions comprise polymerized silicon-containing monomers end-capped with polymerizable cationic hydrophilic groups.