An electrosurgical hand piece comprises a handle having therein a handle passageway. A grip sleeve is provided on handle. A nozzle is disposed at one end of the handle. The outer side of the nozzle has a contacting portion. The nozzle has a nozzle passageway in communication with the handle passageway...http://www.google.fr/patents/US6679880?utm_source=gb-gplus-shareBrevet US6679880 - Electrosurgical hand piece
