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US 7,729,469 B2Granted
X-ray imaging apparatus
AssigneeCanon Kabushiki Kaisha
InventorMasaaki Kobayashi
Life of this patent
Estimating the term…
Abstract
An X-ray imaging apparatus includes an X-ray imaging unit, rotating unit configured to rotate a subject about an axis of rotation relative to the X-ray imaging unit, supporting unit configured to support the subject, and a limiting unit configured to limit the range in which the X-ray imaging unit is moveable along the axis of rotation depending on the position of the supporting means relative to the axis of rotation.
Claims4
An X-ray imaging apparatus comprising:
- an X-ray imaging unit;
- a rotating driving unit configured to control a rotation of a table rotating on an axis of rotation;
- a control unit configured to control the rotating driving unit;
- a support configured to support a subject, which changes a position on the table between still-image taking and computed tomography (CT) imaging;
- a lower limb guard configured to guard a lower limb of the subject on the table;
- an image taking unit position detector configured to detect a position of the X-ray imaging unit;
- and
- a limiter configured to limit a range in which the X-ray imaging unit is moveable along the axis of rotation in dependence upon the position of the support relative to the axis of rotation,
- wherein the limiter limits a position of the X-ray imaging unit within the range in which an image of the lower limb guard is not taken when the support is at the CT imaging position, and
- wherein the control unit keeps rotation of the rotating unit in a suspended state when the support is at the CT imaging position and the position of the X-ray imaging unit is not within the range.
7 more elements
Dependencies are inferred from the claim text.