초록 ▼

A medical instrument comprises a substrate which has at least on its surface a reactive functional group covalently bonded with a water-soluble polymer or derivative thereof, whereby said surface has lubricity when wetted. The water-soluble polymer is a cellulosic polymer, maleic anhydride polymer,

A medical instrument comprises a substrate which has at least on its surface a reactive functional group covalently bonded with a water-soluble polymer or derivative thereof, whereby said surface has lubricity when wetted. The water-soluble polymer is a cellulosic polymer, maleic anhydride polymer, polyacrylamide or water-soluble nylon. The medical instrument is prepared by treating a substrate with a solution of a compound having a reactive functional group to form an undercoat so that the reactive functional group is present at least on the substrate surface, and then treating the substrate with a water-soluble polymer or derivative thereof to covalently bond the reactive functional group with the water-soluble polymer to thereby form a coat of the water-soluble polymer on the undercoat and optionally, contacting the treated substrate with water.

대표청구항 ▼

A medical instrument comprising: a substrate inherently having a reactive functional group on a surface thereof; a water soluble polymer selected from the class consisting of a cellulosic polymer, a maleic anhydride polymer, and a water soluble nylon, or a derivative thereof, said water soluble poly

A medical instrument comprising: a substrate inherently having a reactive functional group on a surface thereof; a water soluble polymer selected from the class consisting of a cellulosic polymer, a maleic anhydride polymer, and a water soluble nylon, or a derivative thereof, said water soluble polymer being covalently bonded with said reactive functional group, said surface exhibiting lubricity when wetted with aqueous fluid.