E12-ENDOSCOPIC NEEDLE I125 RADIOACTIVE SOURCE APPLICATOR FOR ENDOBRACHYTHERAPY OF MALIGNANT TUMORS

摘要

The invention relates to an applicator device for placing radioactive containers of type I125 (Seed 1125) through the channel of an echo-endoscope (30) for the brachytherapy of bronchopulmonary and digestive extraluminal malignant tumors. The applicator device comprises: • comprises a tubular sheath (2) containing at least one cylindrical I125 radioactive container (1), • a beveled needle (4) of the echoendoscope puncture type, in which the sheath (2) is disposed containing at least one radioactive 1125 container (1), and piston means (3) operable at one end by a rod to slidably expel at least one 1125 container and perform localized implantation thereof in a tumor.