Patent ID: 8950937
Filing Date: 2015-02-10
Classification: A61B,H05G

Abstract:
1. An X-ray inspection apparatus comprising: an X-ray tube that irradiates a subject with X-rays and can be moved in a body axial direction of the subject; X-ray tube position detecting means adapted to detect a position of the X-ray tube; an X-ray detector containing part that can be attached with a plurality of X-ray detectors having mutually different sizes in the body axial direction of the subject, and also can be moved in the body axial direction of the subject; X-ray detector containing part position detecting means adapted to detect a position of the X-ray detector containing part; X-ray detector size detecting means adapted to detect a size of an X-ray detector in the body axial direction of the subject, the X-ray detector being contained in the X-ray detector containing part; storage means adapted to store reference position information indicating whether a reference position in the body axial direction of the subject at a time when the X-ray detector is attached to the X-ray detector containing part is based on any of end edges of the X-ray detector containing part or a center of the X-ray detector containing part, and information on a maximum size of an X-ray detector in the axial direction of the subject, the X-ray detector being containable in the X-ray detector containing part; X-ray tube moving means adapted to move the X-ray tube to a position facing to the X-ray detector on a basis of information on the position of the X-ray tube, the position being detected by the X-ray tube position detecting means, information on the position of the X-ray detector containing part, the position being detected by the X-ray detector containing part position detecting means, information on the size of the X-ray detector in the body axial direction of the subject, the size being detected by the X-ray detector size detecting means, the X-ray detector being contained in the X-ray detector containing part, and the reference position information and the information on the maximum size that are stored in the storage means; and reference position information switching means adapted to, if the size of the X-ray detector in the body axial direction of the subject, the size being detected by the X-ray detector size detecting means, the X-ray detector being contained in the X-ray detector containing part, coincides with the maximum size of the X-ray detector containable in the X-ray detector containing part, enables switching of the reference position information stored in the storage means, wherein when the reference position information is switched by the reference position information switching means, the X-ray tube moving means moves the X-ray tube to a position facing to the X-ray detector in the body axial direction of the subject on a basis of a reference position resulting from the switching.