An electrosurgical suction coagulator, comprising: a housing having proximal and distal ends and a substantially malleable elongated tube-like shaft extending longitudinally from a distal end thereof, the elongated tube-like shaft including: a tube-like electrode configured to operably couple to a source of electrosurgical energy, the tube-like electrode having at the distal end thereof at least one aspiration port defined therein, the tube-like electrode being adapted at the proximal end thereof to operably couple to a source of suction; and wherein the elongated tube-like shaft including a tube-like outer wall coupled to the tube-like electrode and having a tube-like dielectric sheath at least partially disposed on the tube-like outer wall, wherein the tube-like electrode is disposed coaxially of the tube-like outer wall characterised in that thetube-like outer wall is made of metallic material and; and a vacuum space is defined by the tube like electrode and the tube-like outer wall disposed concentrically between the tube-like electrode and the tube-like outer wall to impede the propagation of thermal energy from the tube-like electrode to the tube-like outer wall. a housing having proximal and distal ends and a substantially malleable elongated tube-like shaft extending longitudinally from a distal end thereof, the elongated tube-like shaft including: a tube-like electrode configured to operably couple to a source of electrosurgical energy, the tube-like electrode having at the distal end thereof at least one aspiration port defined therein, the tube-like electrode being adapted at the proximal end thereof to operably couple to a source of suction; and wherein the elongated tube-like shaft including a tube-like outer wall coupled to the tube-like electrode and having a tube-like dielectric sheath at least partially disposed on the tube-like outer wall, wherein the tube-like electrode is disposed coaxially of the tube-like outer wall characterised in that thetube-like outer wall is made of metallic material and; and a vacuum space is defined by the tube like electrode and the tube-like outer wall disposed concentrically between the tube-like electrode and the tube-like outer wall to impede the propagation of thermal energy from the tube-like electrode to the tube-like outer wall. a tube-like electrode configured to operably couple to a source of electrosurgical energy, the tube-like electrode having at the distal end thereof at least one aspiration port defined therein, the tube-like electrode being adapted at the proximal end thereof to operably couple to a source of suction; and wherein the elongated tube-like shaft including a tube-like outer wall coupled to the tube-like electrode and having a tube-like dielectric sheath at least partially disposed on the tube-like outer wall, wherein the tube-like electrode is disposed coaxially of the tube-like outer wall characterised in that thetube-like outer wall is made of metallic material and; and a vacuum space is defined by the tube like electrode and the tube-like outer wall disposed concentrically between the tube-like electrode and the tube-like outer wall to impede the propagation of thermal energy from the tube-like electrode to the tube-like outer wall.