| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrosurgical suction coagulator having improved thermal insulation between the active electrode and adjacent tissue. SOLUTION: The electrosurgical suction coagulator includes a housing having proximal and distal ends and a substantially malleable elongated tube-like shaft 120 extending longitudinally from the distal end of the housing. The elongated tube-like shaft includes a tube-like dielectric sheath 126 and a tube-like electrode 125 having a first thermal conductivity K<SB>1</SB>disposed coaxially through the tube-like dielectric sheath. The tube-like electrode is configured to operably couple to a source 140 of electrosurgical energy and a proximal end of the tube-like electrode is adapted to operably couple to a source 150 of suction. The tube-like electrode also includes a thermally conductive member having a second thermal conductivity K<SB>2</SB>that is less than K<SB>1</SB>. COPYRIGHT: (C)2010,JPO&INPIT |
