| 主权项 |
1. An endoscope comprising:
a rigid insertion portion having a longitudinal axis; an operation portion provided continuously with a proximal end of the insertion portion; an optical element disposed at a distal end part of the insertion portion so as to be rotationally movable around a first shaft perpendicular to the longitudinal axis and a second shaft parallel to the longitudinal axis, and configured to change a direction of view upward, downward, leftward, and rightward; a single operation member disposed at the operation portion and configured to be able to swing forward, backward, leftward, and rightward around a third shaft and a fourth shaft which are perpendicular to each other; a first transmission member to which the optical element and the operation member are connected, the first transmission member being configured to transmit a rotational force around the first shaft to the optical element by a tilting operation of the operation member around the third shaft; and a second transmission member including a distal end part at which the optical element is disposed so as to be rotationally movable around the first shaft, and a proximal end part connected to the operation member, the second transmission member being configured to transmit a rotational force around the second shaft to the optical element by a tilting operation of the operation member around the fourth shaft. |
