Patent ID: 7963942
Filing Date: 2011-06-21
Classification: A61L,A61M

Abstract:
1. A medical device, comprising: a generally cylindrical inflatable balloon wall formed of polymer, wherein the balloon wall has a balloon surface area, first regions of the balloon surface area in which the polymer material taken radially through the wall of the first regions are not carbonized, and second regions of the balloon surface area where the polymer material taken radially through the wall of the second regions have a carbonized polymer layer and the first regions and second regions are arranged in a pattern that facilitates the balloon folding into three or more lobes, said pattern, when the balloon is inflated, providing the balloon with a cross-section taken through at least a first region and a second region that has a circumference with first regions and second regions spaced around said cross-section circumference, and when the balloon is deflated arranged to provide said first regions folded under said second regions, wherein said second regions in a folded configuration completely cover said first regions of the folded balloon.