| 摘要 |
PROBLEM TO BE SOLVED: To perform sure and smooth positioning to a narrow part such as a hip joint and the enlargement of a slide rotation angle range, etc. SOLUTION: An X-ray generator 8 is provided on one end part of a C arm 4 and a plane detector 9 is provided on the other end part so as to be positioned on the inner side of the C arm 4. Since the plane detector 9 can be formed thin and small, sure and smooth positioning is enabled even to the narrow part such as the hip joint. Also, a slide rail is extended to the back surface part of the C arm 4 equivalent to a part provided with the plane detector 9 and thus, the slide rotation angle range is enlarged.
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