摘要:
This invention is directed toward surface treatment of a device. The surface treatment comprises the attachment of reactive segmented block copolymers to the surface of the substrate by means of reactive functionalities of the terminal functionalized surfactant material reacting with complementary surface reactive 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.
摘要:
This invention is directed toward reactive segmented block copolymers useful to treat the surface of a substrate by means of reactive functionalities of the reactive segmented block copolymer material reacting with complementary surface reactive functionalities of the polymer substrate.
摘要:
A method for modifying the refractive index of ocular tissues. The method comprises irradiating select regions of ocular tissue with a visible or near-IR laser. The irradiation results in the formation of structures in the ocular tissue, characterized by a change in refractive index, and which exhibit little or no scattering loss.
摘要:
Biomedical devices are formed from the polymerization product of a monomeric mixture including a poly(2-oxazoline) endcapped with an ethylenically unsaturated radical, such as poly(2-oxazoline) macromonomers and telechelics. Preferred devices are ophthalmic lenses, especially contact lenses and intraocular lenses.
摘要:
A polymer represented by the general formula ##STR1## where m is the average degree of polymerization of the polymer, y is an integer from 1 to 3, x is an integer from 1 to 10, A denotes a halogen atom and R denotes an alkyl radical with 1 to 6 carbon atoms.
摘要:
A water absorbing, soft, hydrophilic, flexible, hydrolytically stable, biologically inert contact lens with the capability of transporting oxygen sufficiently to meet the requirements of the human cornea comprising a polysiloxane which is .alpha.,.omega. terminally bonded through divalent hydrocarbon groups to polymerizably activated unsaturated groups and which contain hydrophilic sidechains is disclosed.
摘要:
A method for modifying the refractive index of ocular tissues. The method comprises irradiating select regions of ocular tissue with a visible or near-IR laser. The irradiation results in the formation of structures in the ocular tissue, characterized by a change in refractive index, and which exhibit little or no scattering loss.
摘要:
This application is directed toward an improved method of synthesizing cationic siloxane prepolymers as well as a specific cationic siloxane prepolymer having improved compatibility with monofunctional siloxanyl methacrylate monomers and medical devices containing the cationic siloxane prepolymer.