Electric pulse applicator using pairs of needle electrodes for the treatment of biological tissue

摘要

PCT No. PCT/FR94/00330 Sec. 371 Date Dec. 4, 1995 Sec. 102(e) Date Dec. 4, 1995 PCT Filed Mar. 24, 1994 PCT Pub. No. WO94/22526 PCT Pub. Date Oct. 13, 1994An electric pulse applicator for the treatment of biological tissue applies an electric field to the cells of biological tissue to modify the properties of their membranes. The electric pulse applicator includes electrodes and a pulse generator. The electrodes comprise at least three needles which are introduced into the tissue to be treated and which define a treatment volume. The needles are formed into pairs and a selector switch directs successive pulses produced by the pulse generator to each different pair of needles.