Patent ID: 7722915

Claim:
A method for the preparation of a sealed package for holding a medical device element of a substrate polymer, said substrate polymer having on at least a part of the surface thereof a hydrophilic coating, said method comprising the steps of: (i) providing a medical device element having a substrate polymer selected from the group consisting of polyurethane and polyvinylchloride, (ii) providing a polymer solution including 0.1-20% by weight of a hydrophilic polymer selected from the group consisting of polyvinylpyrrolidone and polyethylene oxide, 0-10% by weight of additive(s), and the balance of a vehicle having 50-100% by weight of an unsubstituted or substituted 1,3-dioxolane compound, with the proviso that the hydrophilic polymer is not polyethylene oxide when the substrate polymer is polyvinylchloride, (iii) applying said polymer solution to the surface of said substrate polymer, thereby forming a non-cross-linked hydrophilic coating on at least a part of the surface of the substrate polymer, (iv) evaporating at least a part of the vehicle, and (v) arranging said medical device element having the coating of the non-cross-linked hydrophilic polymer within a packing means, and sealing said packing means.