PURPOSE: To enable treatment of an intended part accurately and simply by both actions of diffusion and excitation of a semiconductor electrode by includ ing a semiconductor substance having a optical catalytic effect with which a base material for releasing medicine gradually is impregnated at least partially and an exciting means for exciting the semiconductor to release medicine gradu ally by the diffusion from the base material for releasing medicine gradually while the semiconductor electrode is excited by an external stimulation.
CONSTITUTION: A base material 1 for releasing medicine gradually comprises a PVA gel which is impregnated with a medicine 3 such as anticancer drugs and a fine particle powder of a semiconductor electrode 4 made of TiO2 as semiconductor substance having an optical catalytic effect and buried in vicinity of a malignant tumor developed in vivo, for example, a cancer tissue 5. An exciting means 2 is made up of an RF wave oscillator 6 set outside the body, an amplifier 7 and an RF wave oscillation prove 8 to transmit an RF wave oscillated from the RF wave oscillation probe 8 to the buried base material 1 for gradually releasing medicine in vivo through a living body skin tissue 9.
OZEKI KAZUHIKO
KAWASHIMA KOICHI
KANBARA KOJI
KONO RYOICHI
UEDA YASUHIRO
FUSE EIICHI
SUZUKI HIROMASA
