Abstract: An electrode device intended to be temporarily introduced into the body of a living being and to essentially locally treat or electrically measure biological body tissue therein in order to, after a performed treatment or measurement, be removed. The electrode device includes an electrode part (1), provided with an opening to its center and insertable into the body tissue to be treated or measured, and a supply part (2), which is electrically isolated from the remaining body parts, for supply of electricity to the electrode part (1). The supply part (2) is made pliable and contains at least one channel. The electrode part (1) has an unlimited number of openings to its center, which openings preferably are evenly distributed along the entire length of the electrode part (1).

Abstract: An apparatus for destroying a neoplasm, such as a tumor, including electrodes (9,12) connected to a source (1) of direct voltage, of which electrodes one (9) is intended to be arranged in the neoplasm (16) and the other to be brought into electrically conductive contact with the body tissue (17) at a distance from said neoplasm. Measuring apparatus (7) is provided for measuring and indicating the current flowing between the electrodes and integrating apparatus (14) is provided for time integrating the measured current and indicating the electrical charge applied to said neoplasm and said body tissue.