A method and apparatus for the dilatation of obstructed body vessels, orifices and conduits, combined with a controlled and regulated incision of the dilated body vessels using a bipolar or quasi-bipolar electrosurgical cutting wire arrangement is presented....http://www.google.fr/patents/US20070265617?utm_source=gb-gplus-shareBrevet US20070265617 - DILATION CATHETER ASSEMBLY WITH BIPOLAR CUTTING ELEMENT
DILATION CATHETER ASSEMBLY WITH BIPOLAR CUTTING ELEMENT