JOHN THOMAS DANIEL,ダニエル ジョン トーマス,MEURIG JONES LEWIS,ルイス ミュリグ ジョーンズ
申请号：
JP2016004659
公开号：
JP2016129676A
申请日:
2016.01.13
申请国别(地区):
JP
年份:
2016
代理人:
摘要：
PROBLEM TO BE SOLVED: To provide an electrosurgical instrument locating and spacing stop members along jaw members so as to control a spacing between sealing electrodes when the jaw members are in their closed position.SOLUTION: An end effector for an electrosurgical instrument includes a pair of opposing first and second jaw members 2, 3, the two jaw members being movable between an open position, in which the two jaw members are disposed in a spaced relation relative to one another, and a closed position, in which sealing surfaces of the jaw members cooperate to grasp tissue therebetween. A first sealing electrode 9 is located on the first jaw member 2, while a second sealing electrode 10 is located on the second jaw member 3. One or both of the sealing surfaces are provided with electrically conductive stop members 12, the one or more stop members maintaining a predetermined spacing between the first and second sealing electrodes when the jaw members are in their closed position. One or more insulating members are present to prevent the conductive stop members from causing an electrical short between the first and second sealing electrodes when the jaw members are in their closed position.SELECTED DRAWING: Figure 4【課題】顎部材が閉位置にあるときに封止電極の間隔を制御するために、顎部材に沿って止め部材を配置し、間隔を空ける電気手術器具を提供する。【解決手段】電気手術器具用エンドエフェクタは一対の対向する第１及び第２の顎部材２、３を含み、両顎部材は、互いに対して間隔を空けた関係で配設される開位置と、顎部材の封止面が協働して間に組織を把持する閉位置との間を移動可能である。第１の封止電極９が第１の顎部材２に配置される一方、第２の封止電極１０が第２の顎部材３に配置される。封止面の一方又は両方が導電性止め部材１２を備え、顎部材が閉位置にあるときに１以上の止め部材が第１の封止電極と第２の封止電極との間に所定の間隔を維持する。１以上の絶縁部材が存在して顎部材が閉位置にあるときに導電性止め部材が第１及び第２の封止電極間の電気的短絡の原因となることを防止する。【選択図】図４
