A device for resection and/or ablation of organic tissue by means of high-frequency current comprises, at the distal end, a loop that can be acted upon by high-frequency voltage and, in the proximal direction from the loop, at least one helix that can likewise be acted upon by high-frequency voltage,...http://www.google.ca/patents/US7789880?utm_source=gb-gplus-sharePatent US7789880 - Device for resection and/or ablation of organic tissue by means of high-frequency current
