The present invention provides balloon dissection apparatus and methods of use in which an elongate balloon is utilized to dissect along a region that follows a naturally existing path alongside a vessel or structure, such as au artery, a vein, a lymphatic vessel, the trachea, the esophagus, or even...http://www.google.es/patents/US6764497?utm_source=gb-gplus-sharePatente US6764497 - Extraluminal balloon dissection
