X-RAY FLUOROSCOPIC IMAGING APPARATUS

摘要

PURPOSE:To enhance operability to a large extent and to also simply divert the X-ray tube of a side surface direction system and the support apparatus thereof to other use, by containing a wire draw-out length detection means for detecting the draw-out length of the wire connected between said detection means and a suppot member provided in connection with the movement of the image intensifier of the side surface direction system and a draw-out angle detection means for detecting the draw-out angle of the wire with respect to the reference surface of a fixing part. CONSTITUTION:A support member 14 is mounted on the support body 13 of a fluoroscopic imaging table 1, and the leading end part thereof and the fixing part of a stand 2 are connected by a wire rope 17 through a wire draw-out angle detection part 15 and a wire draw-out length detection part 16. Corresponding to the movement of the X-ray tube 4 and I.I 6 of a front detection system, the wire draw-out angle theta1 to the reference surface of the wire rope 17 at the moving time is detected by the detection part 15 and the wire draw-out length L from a reference point S to the connection point of the detection part 15 is detected by the detection part 16. The center coordinates position of the I.I 10 of a side surface direction system is calculated on the basis of the theta1-signal and the L-signal by an operation apparatus 29 and the movement of a support 7 in up-and-down and horizontal directions is controlled to allow the focus of the X-ray tube 8 of the side surface direction system to coincide with the center of the I.I 10.