A remotely controlled surgical device control portion comprises a user moveable bi-directional trigger, a finger loop disposed within the trigger, and a flange coupled to the finger loop. The trigger is configured for receiving a motion input in opposing first and second directions. The motion input is for controlling an articulation motion of an articulating surgical instrument. The finger loop is configured for receiving the motion input in the form of a user squeezing the trigger in the first direction with at least one finger or pushing the trigger in the second direction with said at least one finger. The flange is configured for receiving the motion input in the form of pushing the trigger in the second direction with a thumb.一遠端控制式手術裝置控制部係包含一使用者可移式雙向觸發件,一配置於觸發件內之手指迴圈,及一耦合至手指迴圈之凸緣。觸發件係組構為在相對的第一及第二方向接收一動作輸入。動作輸入係用於控制一活節手術儀器的一活節動作。手指迴圈係組構為以一使用者以至少一手指在第一方向擠壓觸發件或以該至少一手指在第二方向推押觸發件的形式接收動作輸入。凸緣係組構為以一姆指在第二方向推押觸發件的形式接收動作輸入。