Patent ID: 8808238
Filing Date: 2014-08-19
Classification: A61M

Abstract:
1. A balloon catheter comprising: a catheter that includes a catheter body connectable to a catheter hub: a balloon disposed on the catheter body, the balloon being contracted and wrapped around the catheter body so that the balloon is folded, with parts of the balloon folded to inside, the folded balloon possessing an outer surface; a lumen in the catheter in fluid communication with an interior of the balloon to introduce expanding fluid into the balloon; a first hydrophilic coating layer, including a first polymer, on an outer surface of the balloon, the first hydrophilic coating layer existing on the outer surface including the outer surface of the parts of the balloon folded to the inside; and a second hydrophilic coating layer, including a polymer that is identical with said first polymer, in contact with a portion of the first hydrophilic coating layer and continuously surrounding an outer periphery of the folded balloon including portions of the outer periphery of the balloon at which the first hydrophilic coating layer exists.