PROBLEM TO BE SOLVED: To appropriately achieve both the safety of medical practice such as surgery and the convenience of observation in a blood vessel by a user such as a doctor. SOLUTION: The blood vessel observation system includes an endoscope that images the blood vessel of the subject while the tip portion is inserted into the blood vessel of the subject and the proximal end portion is fixed and pulled back by a user's operation. A pullback device that fixes the endoscope and acquires the position information and speed information of the endoscope during pullback based on the user's operation, and the blood vessel image is substantially constant during pullback based on the position information and speed information of the endoscope. A controller that displays the display screen of the blood vessel image corresponding to the position information of the endoscope on the monitor when it is determined whether or not it was acquired at each time and it is determined that the blood vessel image was acquired at approximately fixed time intervals. To prepare for. [Selection diagram] FIG. 7
展开▼
