A novel transparent electrode that uses a conductive coating to allow delivery of current to the heart as well as outward imaging through the electrode is described. The embodiments disclose a catheter incorporating an endoscope, whose imaging tip is coated with a conductive coating that is transparent...http://www.google.se/patents/US20060030844?utm_source=gb-gplus-sharePatent US20060030844 - Transparent electrode for the radiofrequency ablation of tissue
