An aspirating ablator of simple construction and low cost is disclosed. The aspirating ablator is provided with a mandrel connected to a tubular member which houses a suction assembly. An electrode having a rectangular ablation surface formed of multiple parallel ribs or protuberances is assembled onto...http://www.google.de/patents/US6840937?utm_source=gb-gplus-sharePatent US6840937 - Electrosurgical ablator with aspiration
