PROBLEM TO BE SOLVED: To provide a surgical device, applicable to many kinds of medical treatments for different human body tissues in a wide range, simply and inexpensively manufactured, and compatible with the conventional system and procedure.SOLUTION: This surgical device includes an elongated shaft having first and second electrically isolated electrodes coupled to the shaft such that an exposed portion of the second electrode is disposed around only part of a circumference of the elongated shaft, and includes a portion that is spaced proximally from the first electrode. Another surgical device also includes an elongated shaft having first and second electrically isolated electrodes coupled to the shaft, wherein the shaft includes a first side, and exposed surfaces of the first and second electrodes are side-facing toward the first side. Various embodiments of a "cool back" are provided, allowing arthroscopic surgery on a first side of a device without tissue effects on a back side of the device.COPYRIGHT: (C)2009,JPO&INPIT【課題】広範囲の異なる人体組織に対する多くの種類の医療処置に適用可能で、かつ製造するのに単純で安価であり、しかも、従来のシステムや手順と互換性を有する外科用装置を提供する。【解決手段】外科用装置は、シャフトに結合し電気的に絶縁された第1および第2電極を有する細長いシャフトを備え、第2電極の露出部分が細長いシャフトの周囲の一部のみに設けられ、第1電極から基端方向に離れた部分を備える。他の外科用装置も、シャフトに結合し電気的に絶縁された第1および第2電極を有する細長いシャフトを備え、シャフトは第1側面を備え、第1および第2電極の露出面が第1側面の方へ側面を向く。「クールバック」の種々の実施形態が設けられ、装置の後側の組織効果なしに、装置の第1側面において鏡視下手術を可能にする。【選択図】図12
