A bipolar electrosurgical instrument including an introducer having a channel therein and an electrically conductive snare slidably positioned within the channel and slidable between an undeployed position wherein it is substantially retracted within the channel and a deployed position wherein a distal...http://www.google.fr/patents/US7147635?utm_source=gb-gplus-shareBrevet US7147635 - Bipolar electrosurgical snare
