A curved portion which is bent through the wire is pulled, a driving unit for traction drive wire, the driving competence detector and the detection unit detects the driving competence and detection of a driving amount of the drive unit, the medical device, driving a bend amount detecting section for detecting a bend amount of the bending portion based on a storage unit which stores in advance the information on the correlation of the driving amount and the driving competence of the parts, the driving competence and driving amount, and the information in the storage unit, the drive from the detection result of the detection unit competence, I provided, and a correction unit on the basis of a determination section, the determination result of the determination unit for the presence of the slack of the wire to correct the drive amount by the drive unit.医療装置は、牽引されるワイヤを介して湾曲される湾曲部と、ワイヤを牽引駆動する駆動部と、駆動部の駆動量の検知及び駆動力量を検出する検知部及び駆動力量検出部と、駆動部の駆動力量及び駆動量の相関関係の情報を予め記憶する記憶部と、駆動量及び駆動力量と、記憶部の情報とに基づいて湾曲部の湾曲量を検出する湾曲量検出部と、駆動力量検出部の検出結果から、ワイヤの弛みの有無を判定する判定部と、判定部の判定結果に基づき、駆動部による駆動量を補正する補正部と、を具備する。
