Patent ID: 7951413
Filing Date: 2011-05-31
Classification: A61F,A61M,Y10T

Abstract:
1. A method of making a balloon catheter having a lubricious balloon, comprising: (a) modifying an outer surface of a porous polymeric layer of a balloon by applying a solution of a polymer onto the outer surface of the porous layer to impregnate the porous polymeric layer with the polymer, or by depositing a functionality on the porous polymeric layer before bonding the porous polymeric layer to the inner layer of the balloon; (b) modifying an inner surface of the porous polymeric layer by depositing a functionality on the porous polymeric layer; (c) bonding the inner surface of the porous polymeric layer to an outer surface of the inner layer of the balloon and bonding the balloon to an elongated shaft so that an interior of the balloon is in fluid communication with an inflation lumen of the shaft; and (d) coating the modified outer surface of the porous polymeric layer of the balloon with a lubricious compound, so that the modified outer surface bonds to the lubricious compound, to form the balloon catheter having a lubricous balloon.