An electrode device, in particular for cardiovascular applications, includes an elongated electrode body made from an insulating material, a plurality of electrodes for detecting electrocardiological signals and/or for outputting electrocardiological stimulus signals, and supply line, in particular non-elastic cables or strands, which serve for electrically connecting the electrodes, which supply lines are guided in each case in the electrode body, preferably in associated lumina. Furthermore, a compensating hose section is provided which is inserted in a parting point in the electrode and has a maximum outer diameter that corresponds to the electrode body, wherein helically shaped receptacles, for each supply line, are incorporated in the compensating hose section, and the compensating hose section, at its joining sides facing toward the electrode body, is connected in a hermetically sealed manner to the electrode body.
