Patent ID: 7699843
Filing Date: 2010-04-20
Classification: A61B

Abstract:
1. An instrument for the unipolar ablation of heart tissue, comprising: an electrically conductive tube electrically insulated on its outer surface, with an electrical connector on a proximal end of the tube which is electrically conductively connected to said tube, with a rinse connection on the proximal end of the tube which is in communication with a lumen of the tube and an electrode mounted into a distal end of the tube which is connected electrically conductively to the tube and which features at least one discharge opening which is in communication with the lumen of the tube, wherein the tube is a shaft tube and that the electrode is connected detachably with the distal end of the shaft tube; and wherein the electrode is coaxially inserted into the distal end of the shaft tube axially contacting a stop establishing an electrical contact with the shaft tube and wherein that an electrically insulating electrode ferrule which surrounds the electrode is snapped onto the shaft tube and holds the electrode in a stop position on the shaft tube.