Electrosurgical instrument and method for the production therof

摘要

An electrosurgical instrument for use with a source of radio-frequency energy during surgery to cut or to cauterize tissue, which instrument comprises a metallic tool portion which is coated on the faces thereof, other than the edge or area which is in use during surgery, with an electrically insulating and thermally non-conductive ceramic material which is coated and/or impregnated with a viscoelastic polymer.