Patent ID: 6923978
Filing Date: 2005-08-02
Classification: A61L,G02B

Abstract:
1. A composite material with one or more wettable surfaces capable of holding a continuous layer of aqueous fluid thereon, comprising: a bulk material having a plasma modified surface; and a hydrophilic coating, wherein the plasma modified surface is obtained by plasma surface treatment and comprises reactive groups, wherein the hydrophilic coating consists of a carbohydrate attached covalently to the reactive groups on the plasma modified surface of the bulk material, either directly or via functional groups of an oligofunctional compound, wherein said carbohydrate is selected from the group consisting of a dextran, chitosan, hyaluronic acid, mucin, fucoidan and a glucosamin, wherein said oligofunctional compound in turn having functional groups being capable of reacting with said reactive groups on the plasma modified surface of the bulk material and with the carbohydrate.