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US 10,517,548 B2Granted
X-ray diagnostic apparatus and control method for X-ray diagnostic apparatus
AssigneeCanon Medical Systems Corporation
InventorTsuyoshi Kojima
Life of this patent
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Abstract
There is provided an X-ray diagnostic apparatus which comprises a top, a bed, an X-ray tube, an X-ray detector, a supporting arm configured to movably support the X-ray tube generation unit and the X-ray detector, a holder configured to movably hold the supporting arm and control processing circuitry. The control processing circuitry controls the bed, the supporting arm, and the holder to limit movement of the top, the X-ray tube, the X-ray detector, and the supporting arm based on distances between the top, the X-ray tube, the X-ray detector, and the supporting arm, and moving directions of the top, the X-ray tube, the X-ray detector, and the supporting arm.
Claims19
An X-ray diagnostic apparatus, comprising:
- a top;
- a bed configured to movably hold the top;
- an X-ray tube configured to irradiate an object placed on the top with X-rays;
- an X-ray detector arranged to face the X-ray tube and configured to generate X-ray projection data by detecting the X-rays emitted by the X-ray tube;
- a supporting arm configured to movably support the X-ray tube and the X-ray detector;
- a holder configured to movably hold the supporting arm;
- and
- control processing circuitry configured to control a support unit that includes at least one of the bed, the supporting arm, and the holder to move a move unit that includes at least one of the top, the X-ray tube, the X-ray detector, and the supporting arm
- wherein the control processing circuitry is further configured to
- calculate arrival space coordinates, which are space coordinates predicted to be reached by movement of a mobile body based on vector data representing a movement amount and a movement direction in space coordinates of the mobile body, the mobile body being a region of interest set on a surface of the move unit, and
- control the support unit in accordance with a distance between the calculated arrival space coordinates of the region of interest and space coordinates of an interference object.
8 more elements
An X-ray diagnostic apparatus, comprising:
- a bed column portion configured to movably hold a top;
- an X-ray tube configured to irradiate an object placed on the top with X-rays;
- an X-ray detector arranged to face the X-ray tube and configured to generate X-ray projection data by detecting the X-rays emitted by the X-ray tube;
- a supporting arm configured to movably hold the X-ray tube and the X-ray detector;
- a holder configured to movably support the supporting arm;
- and
- a control processing circuitry configured to control a support unit that includes at least one of the bed, the supporting arm, and the holder to move a move unit that includes at least one of the top, the bed column portion, the X-ray tube, the X-ray detector, the supporting arm, and a wall surface and floor surface of an examination room,
- wherein the control processing circuitry is further configured to
- calculate arrival space coordinates, which are space coordinates predicted to be reached by movement of a mobile body based on vector data representing a movement amount and a movement direction in space coordinates of the mobile body, the mobile body being a region of interest set on a surface of the move unit, and
- control the support unit in accordance with a distance between the calculated arrival space coordinates of the region of interest and space coordinates of an interference object.
7 more elements
An X-ray diagnostic apparatus, comprising:
- a top;
- a bed configured to movably hold the top;
- an X-ray tube configured to irradiate an object placed on the top with X-rays;
- an X-ray detector arranged to face the X-ray tube and configured to generate X-ray projection data by detecting the X-rays emitted by the X-ray tube;
- a supporting arm configured to movably support the X-ray tube and the X-ray detector;
- a holder configured to movably hold the supporting arm;
- and
- control processing circuitry configured to
- define a plurality of interference points, including at least one interference point on at least two of the top, the bed, the X-ray tube, the X-ray detector, the supporting arm, and the holder,
- store space coordinates of each interference point of the plurality of interference points at a plurality of times,
- determine a velocity vector, representing a movement direction and a movement speed, for each of the plurality of interference points, based on the stored space coordinates,
- predict arrival space coordinates at a next time for each of the plurality of interference points, based on the determined velocity vector of each of the plurality of interference points,
- determine a distance between a pair of the plurality of interference points, based on the predicted arrival space coordinates of the pair of interference points, and
- perform interference control based on the determined distance.
11 more elements
Dependencies are inferred from the claim text.