Patent ID: 8469926

Claim:
A method of making a non-compliant balloon comprising: forming a base balloon from a polymer material to form a flexible and substantially inelastic base balloon having a generally cylindrical barrel with a substantially fixed first circumference, first and second cylindrical end portions each having a proximate and distal end and a substantially fixed second circumference smaller than the first circumference and first and second transition portions each having a proximate end and a distal end, each transition portion extending from an end of the barrel to a proximate end of one of the cylindrical end portions; applying a non-woven layer of substantially inelastic first fibers over the base balloon, the first fibers comprising randomly oriented fibers defining random intersection angles at a plurality of locations where the first fibers intersect and cross over each other; applying at least one outer coating over the randomly oriented first fibers, the coating comprising a polymeric solution; curing the outer coating to form an outer layer; folding the balloon with balloon folds on the outer surface such that the balloon may be pressurized to an inflated state having an unfolded configuration with a substantially smooth outer surface by increasing the pressure within the base balloon; and wherein the random angles between the intersecting randomly oriented first fibers are fixed in position relative to the base balloon such that the angle at which each of the randomly oriented fibers intersects another randomly oriented fiber remains constant when the balloon is inflated and deflated.