insertion device, the outer peripheral side of the curvature and size of the base of the thumb are in close contact and the UD knob that has been cut to the concave of the depression, and a RL knob product is weight in the same rotation center as the UD knob, thumb sneak the UD knob, base of the thumb is the deepest of depressions of the UD knob The contact with the part, RL knob is a configuration that is present to be operated within a movable range of a thumb beyond the UD knob. RL knob and by the motor drive, bending the bending portion is rotated an RL knob fingertips.挿入装置は、外周側が親指の付け根部分が密着する曲率や大きさの凹曲の窪みに切り欠かれたUDノブと、UDノブと同じ回動中心で積重されるRLノブとを備え、親指がUDノブを回り込み、親指の付け根部分がUDノブの窪みの最も深い部分に当接し、UDノブを超えた親指の可動範囲内にRLノブが操作可能に存在する構成である。RLノブはモータ駆動にすることで、指先でRLノブを回動させて湾曲部を湾曲させる。
