Dilatation balloon with ridges and methods

摘要

The present invention provides a zero-fold dilatation balloon that includes a balloon body having a proximal end and a distal end and at least one ridge at the proximal end and at least one ridge at the distal end in an inflated state, wherein the balloon body between the ridges comprises a continuous polymer tube with an external surface having a hydrophilic coating thereon, and further wherein the balloon has a uniform profile along its entire length in a deflated state.