Patent ID: 9095687
Filing Date: 2015-08-04
Classification: A61M

Abstract:
1. A catheter, comprising: a balloon having a proximal end and a distal end and a dilated and an undilated state and having at least one wing in the undilated state, the balloon in the dilated state having a plurality of fold elements with at least one fold element running essentially in a longitudinal direction for each wing but at a fixedly defined non-zero angle (α) to a longitudinal axis of the balloon along its length between areas of the distal and proximal ends, at least a portion of the fold element in the areas of the distal and proximal ends being at a nonparallel angle with respect to an adjacent fold element proximate either to one of or both the proximal and distal ends and remaining portions of the fold element along the length between areas of the distal and proximal ends being parallel to the adjacent fold element in the dilated state, wherein the fold element of the balloon is formed by a longitudinal strut which forms a structure that is arranged on either the inside, outside or both inside and outside of the balloon and supports the balloon at defined locations, the balloon made of a first polymer, the longitudinal strut made of a polymer different from the first polymer or a metal wire, such that when the balloon is folded, the fold element is arranged in an area of the wing running in the longitudinal direction with a minimum in the bending radius.