Selective treatment, at the same time and place, of tumours by means of heat and radioactive emissions by two-zone combination needles

Apparatus for the selective treatment, at the same time and place, of tumour tissue by means of heat and radioactive emissions by thin-walled tubular elements inserted in the body; interstitial thermo-action and radiotherapy. In the apparatus according to the invention, the heat energy transfer into the tissue takes place by small-dimension tubes through which water flows. The water is supplied to the heat-exchanger tubes through two coaxial water-supply tubes of different length in such a way that two different heat zones result in a tube. Accordingly, the tubular element implanted in the body has two distinctly separate temperatures, for example, 43.0@C and 37.0@C. The region to which heat is supplied in the heat-exchanger tube is equipped to receive radioactive products. The temperature and radiation supplied from a tubular element made of such tubes is fixed in three dimensions and can therefore be directed accurately even on deep-seated tumours without the temperature and radiation influencing the surrounding healthy tissue.