抄録
Laparoscopic surgical operation has reverse motion in which forceps move reverse on Patient's inside to on the outside of the body. Reverse motion is troublesome for the surgeon, because that causes by the operation mistake and the operation delay. This paper proposes Machine Device on sitting condition with simple mechanism that cancels the reverse motion. Authors evaluate Machine Device by operation time for basic surgical operation. The results of experiment are described about the influence which the operation coordinate system and the view coordinate system give the surgeon. The best result is obtained when the operation coordinate system is corresponding to the view coordinate system.
