| 摘要 |
PURPOSE: To align the center axis of markers with the center axis of the other device through easy operation when the center axis of a fixed frame slants to the center axis of the other device for the affected part measurement. CONSTITUTION: Markers 11, 12, and 13 for the affected part measurement are fitted to a rotary frame 6 which is fitted rotatably to the fixed frame 2. While the head of a patient is fixed with a fixation pin 10 for skull fixation, a CT scanner 28 takes a tomographic picture of the brain and if the center axis L2 of the fixed frame 2 slants to the center axis L1 of the CT scanner 28, the tilt quantity is measured from the taken picture to rotate the rotary frame 6 to or away from the fixed frame 2 according to the tilt quantity. Consequently, the center axis of the markers 11, 12, and 13 (center axis L3 of the rotary frame 6) can easily be aligned with the center axis L1 of the CT scanner 28. |
