PROBLEM TO BE SOLVED: To keep a state in which an outer peripheral surface of a balloon is in surface contact with an inner wall surface of a myocardial tissue over the entire circumference even if a doctor or the like does not grasp a catheter during ablation of a treatment site with a balloon. SOLUTION: A catheter control device 10 is a catheter with a balloon used for a treatment in which an outer peripheral surface of a balloon 21 is brought into surface contact with an inner wall surface of a myocardial tissue 32 over the entire circumference, and the contacted portion is cauterized. It is combined. The catheter control device 10 detects information on the surface contact state between the gripping device 40 for gripping the catheter 20, the operating units 43 and 44 for moving the catheter 20, and the outer peripheral surface of the balloon 21 and the inner wall surface of the myocardial tissue 32. Based on the information about the surface contact state detected by the detection unit 50 and the detection unit 50, the operation unit 43, so as to keep the surface contact state between the outer peripheral surface of the balloon 21 and the inner wall surface of the myocardial tissue 32 constant. A control unit 70 that controls the movement operation of the catheter 20 in 44 is provided. [Selection diagram] Fig. 1【課題】バルーンによる治療部位の焼灼中、医師等がカテーテルを把持しなくても、バルーンの外周面が心筋組織の内壁面に全周囲に亘って面接触した状態を一定に保つ。【解決手段】カテーテル制御装置１０は、バルーン２１の外周面を、心筋組織３２の内壁面に全周囲に亘って面接触させ、該面接触した部位を焼灼する治療に使用されるバルーン付きカテーテルに結合されている。カテーテル制御装置１０は、カテーテル２０を把持する把持装置４０と、カテーテル２０を移動操作する操作部４３，４４と、バルーン２１の外周面と心筋組織３２の内壁面との面接触状態に関する情報を検出する検出部５０と、検出部５０で検出された面接触状態に関する情報に基づいて、バルーン２１の外周面と心筋組織３２の内壁面との面接触状態を一定に保つように、操作部４３，４４におけるカテーテル２０の移動操作を制御する制御部７０と、を備える。【選択図】図１
