Method for controlling X-ray diagnostic apparatus

1. A method for controlling an X-ray diagnostic apparatus comprising a floor-mounted rotary arm mounted at one end on a floor rotatably about a substantially vertical rotation axis; a stand supported at the other end of the floor-mounted rotary arm rotatably about a substantially vertical rotation axis; a substantially C-shaped arm slidably supported by the stand; an X-ray tube supported at one end of the C arm; an X-ray detector supported at the other end of the C arm rotatably about a shooting axis passing through an X-ray focus of the X-ray tube and a center of the detection surface; a display screen and a controller, the method comprising the steps of:

moving the X-ray tube and the X-ray detector linearly by controlling rotation of the floor-mounted rotary arm and rotation of the stand; and

maintaining the orientation of an image in the display screen by controlling axial rotation of the X-ray detector in synchronization with the rotation of the floor-mounted rotary arm and the rotation of the stand.

2. The method for controlling the X-ray diagnostic apparatus according to claim 1 , wherein the shooting axis can be made to substantially agree with a center line of the floor-mounted rotary arm.

3. The method for controlling the X-ray diagnostic apparatus according to claim 1 , further comprising the step of controlling the rotation of the stand so that the shooting axis substantially agrees with a center line of the floor-mounted rotary arm according to an instruction of a specific operator.

4. A method for controlling an X-ray diagnostic apparatus comprising a floor-mounted rotary arm mounted at one end on a floor rotatably about a substantially vertical rotation axis; a stand supported at the other end of the floor-mounted rotary arm rotatably about a substantially vertical rotation axis; a substantially C-shaped arm slidably supported by the stand; an X-ray tube supported at one end of the C arm; an X-ray detector supported at the other end of the C arm rotatably about a shooting axis passing through an X-ray focus of the X-ray tube and a center of the detection surface; a display screen and a controller, the method comprising the steps of:

controlling rotation of the floor-mounted rotary arm;

moving the X-ray tube and the X-ray detector linearly by controlling rotation of the stand in synchronization with the rotation of the floor-mounted rotary arm; and

maintaining the orientation of an image in the display screen by controlling axial rotation of the X-ray detector in synchronization with the rotation of the floor-mounted rotary arm.

5. A method for controlling an X-ray diagnostic apparatus comprising a floor-mounted rotary arm mounted at one end on a floor rotatably about a substantially vertical rotation axis; a stand supported at the other end of the floor-mounted rotary arm rotatably about a substantially vertical rotation axis; a substantially C-shaped arm slidably supported by the stand; an X-ray tube supported at one end of the C arm; an X-ray detector supported at the other end of the C arm rotatably about a shooting axis passing through an X-ray focus of the X-ray tube and a center of the detection surface; a display screen and a controller, the method comprising the steps of:

controlling rotation of the stand;

moving the X-ray tube and the X-ray detector linearly by controlling rotation of the floor-mounted rotary arm in synchronization with the rotation of the stand; and

maintaining the orientation of an image in the display screen by controlling axial rotation of the X-ray detector in synchronization with the rotation of the stand.

6. A method for controlling an X-ray diagnostic apparatus comprising: a tabletop movably supported along a reference line; a floor-mounted rotary arm mounted at one end on a floor rotatably about a substantially vertical first rotation axis intersecting the reference line within the movable range of the tabletop; a driver of the rotation of the floor-mounted rotary arm; a stand supported at the other end of the floor-mounted rotary arm rotatably about a substantially vertical second rotation axis; a driver of the rotation of the stand; a substantially C-shaped arm supported by the stand; an X-ray tube supported at one end of the C arm; an X-ray detector supported at the other end of the C arm rotatably about a third rotation axis that substantially agrees with a shooting axis passing through an X-ray focus of the X-ray tube and a center of the detection surface; a driver of the rotation of the X-ray detector; a display screen and a controller, the method comprising the steps of:

moving the X-ray tube and the X-ray detector linearly substantially in parallel with the reference line by controlling the floor-mounted-rotary-arm rotation driver and the stand rotation driver; and

rotating the X-ray detector in synchronization with rotation of the floor-mounted rotary arm and rotation of the stand by controlling the X-ray-detector rotation driver in such a manner as to maintain the orientation of an image in the display screen.

7. The method for controlling the X-ray diagnostic apparatus according to claim 6 , wherein the X-ray diagnostic apparatus further comprises an X-ray limiting device provided to the X-ray tube rotatably about the third rotation axis and a driver of the rotation of the X-ray limiting device, the method further comprising the step of:

rotating the X-ray limiting device together with the X-ray detector by controlling the driver of the rotation of the X-ray limiting device.

8. A method for controlling an X-ray diagnostic apparatus comprising: a tabletop movably supported along a reference line; a floor-mounted rotary arm mounted at one end on a floor rotatably about a substantially vertical first rotation axis intersecting the reference line within the movable range of the tabletop; a driver of the rotation of the floor-mounted rotary arm; a stand supported at the other end of the floor-mounted rotary arm rotatably about a substantially vertical second rotation axis; a driver of the rotation of the stand; a substantially C-shaped arm supported by the stand; an X-ray tube supported at one end of the C arm; an X-ray detector for forming an image, the X-ray detector being supported at the other end of the C arm rotatably about a third rotation axis that substantially agrees with a shooting axis passing through an X-ray focus of the X-ray tube and a center of the detection surface; a driver of the rotation of the X-ray detector; a display screen and a controller, the method comprising the steps of:

rotating the floor-mounted rotary arm about the first rotation axis by controlling the driver of the rotation of the floor-mounted rotary arm;

rotating the stand about the second rotation axis in synchronization with the rotation of the floor-mounted rotary arm in such a manner as to move the X-ray tube and the X-ray detector linearly substantially in parallel with the reference line by controlling the stand rotation driver; and

rotating the X-ray detector in synchronization with the rotation of the floor-mounted rotary arm and the rotation of the stand in such a manner as to maintain the orientation of the image in the display screen by controlling the X-ray-detector rotation driver.

9. A method for controlling an X-ray diagnostic apparatus comprising: a tabletop movably supported along a reference line; a floor-mounted rotary arm mounted at one end on a floor rotatably about a substantially vertical first rotation axis intersecting the reference line within the movable range of the tabletop; a driver of the rotation of the floor-mounted rotary arm; a stand supported at the other end of the floor-mounted rotary arm rotatably about a substantially vertical second rotation axis; a driver of the rotation of the stand; a substantially C-shaped arm supported by the stand; an X-ray tube supported at one end of the C arm; an X-ray detector supported at the other end of the C arm rotatably about a third rotation axis that substantially agrees with a shooting axis passing through an X-ray focus of the X-ray tube and a center of the detection surface; a driver of the rotation of the X-ray detector; a display screen and a controller, the method comprising the steps of:

rotating the stand about the second rotation axis by controlling the stand rotation driver;

rotating the floor-mounted rotary arm about the first rotation axis in synchronization with the rotation of the stand in such a manner as to move the X-ray tube and the X-ray detector linearly substantially in parallel with the reference line by controlling the driver of the rotation of the floor-mounted rotary arm; and

rotating the X-ray detector in synchronization with the rotation of the floor-mounted rotary arm and the rotation of the stand in such a manner as to maintain the orientation of an image in the display screen by controlling the X-ray-detector rotation driver.

10. A method for controlling an X-ray diagnostic apparatus comprising: a tabletop movably supported along a reference line; a floor-mounted rotary arm mounted at one end on a floor rotatably about a substantially vertical first rotation axis intersecting the reference line within the movable range of the tabletop; a driver of the rotation of the floor-mounted rotary arm; a stand supported at the other end of the floor-mounted rotary arm rotatably about a substantially vertical second rotation axis; a driver of the rotation of the stand; a substantially C-shaped arm supported by the stand; an X-ray tube supported at one end of the C arm; an X-ray detector supported at the other end of the C arm rotatably about a third rotation axis that substantially agrees with a shooting axis passing through an X-ray focus of the X-ray tube and a center of the detection surface; a driver of the rotation of the X-ray detector; a display screen and a controller, the method comprising the steps of:

rotating the floor-mounted rotary arm about the first rotation axis and rotating the stand about the second rotation axis in such a manner as to move the shooting axis while maintaining an intersection with the reference line by controlling the driver of the rotation of the floor-mounted rotary arm and the stand rotation driver; and

rotating the X-ray detector in synchronization with the rotation of the floor-mounted rotary arm and the rotation of the stand in such a manner as to maintain the orientation of an image in the display screen by controlling the X-ray-detector rotation driver.

11. A method for controlling an X-ray diagnostic apparatus comprising: a tabletop movably supported along a reference line; a floor-mounted rotary arm mounted at one end on a floor rotatably about a substantially vertical first rotation axis intersecting the reference line within the movable range of the tabletop; a driver of the rotation of the floor-mounted rotary arm; a stand supported at the other end of the floor-mounted rotary arm rotatably about a substantially vertical second rotation axis; a driver of the rotation of the stand; a substantially C-shaped arm supported by the stand; an X-ray tube supported at one end of the C arm; an X-ray detector for forming an image supported at the other end of the C arm rotatably about a third rotation axis that substantially agrees with a shooting axis passing through an X-ray focus of the X-ray tube and a center of the detection surface; a driver of the rotation of the X-ray detector; a display screen and a controller, the method comprising the steps of:

rotating the floor-mounted rotary arm about a first rotation axis and rotating the stand about a second rotation axis in such a manner as to move the X-ray tube and the X-ray detector linearly in a direction substantially orthogonal to the reference line by controlling the driver of the rotation of the floor-mounted rotary arm and the stand rotation driver; and

rotating the X-ray detector in synchronization with the rotation of the floor-mounted rotary arm and the rotation of the stand in such a manner as to maintain the orientation of the image in the display screen by controlling the X-ray-detector rotation driver.

12. A method for controlling an X-ray diagnostic apparatus comprising: a tabletop movably supported along a reference line; a floor-mounted rotary arm mounted at one end on a floor rotatably about a substantially vertical first rotation axis intersecting the reference line within the movable range of the tabletop; a driver of the rotation of the floor-mounted rotary arm; a stand supported at the other end of the floor-mounted rotary arm rotatably about a substantially vertical second rotation axis; a driver of the rotation of the stand; a substantially C-shaped arm supported by the stand; an X-ray tube supported at one end of the C arm; an X-ray detector for forming an image, the X-ray detector being supported at the other end of the C arm rotatably about a third rotation axis that substantially agrees with a shooting axis passing through an X-ray focus of the X-ray tube and a center of the detection surface; a driver of the rotation of the X-ray detector; a display screen and a controller, the method comprising the steps of:

rotating the floor-mounted rotary arm about the first rotation axis by controlling the driver of the rotation of the floor-mounted rotary arm; and

rotating the stand about the second rotation axis in synchronization with the rotation of the floor-mounted rotary arm in such a manner as to move the X-ray tube and the X-ray detector linearly in a direction substantially orthogonal to the reference line by controlling the stand rotation driver; and

rotating the X-ray detector in synchronization with the rotation of the floor-mounted rotary arm and the rotation of the stand in such a manner as to maintain the orientation of the image on the display screen by controlling the X-ray-detector rotation driver.

13. A method for controlling an X-ray diagnostic apparatus comprising: a tabletop movably supported along a reference line; a floor-mounted rotary arm mounted at one end on a floor rotatably about a substantially vertical first rotation axis intersecting the reference line within the movable range of the tabletop; a driver of the rotation of the floor-mounted rotary arm; a stand supported at the other end of the floor-mounted rotary arm rotatably about a substantially vertical second rotation axis; a driver of the rotation of the stand; a substantially C-shaped arm supported by the stand; an X-ray tube supported at one end of the C arm; an X-ray detector for forming an image supported at the other end of the C arm rotatably about a third rotation axis that substantially agrees with a shooting axis passing through an X-ray focus of the X-ray tube and a center of the detection surface; a driver of the rotation of the X-ray detector; a display screen and a controller, the method comprising the steps of:

rotating the stand about the second rotation axis by controlling the stand rotation driver;

rotating the floor-mounted rotary arm about the first rotation axis in synchronization with the rotation of the stand in such a manner as to move the X-ray tube and the X-ray detector linearly in a direction substantially orthogonal to the reference line by controlling the driver of the rotation of the floor-mounted rotary arm; and

rotating the X-ray detector in synchronization with the rotation of the floor-mounted rotary arm and the rotation of the stand in such a manner as to maintain the orientation of the image on the display screen by controlling the X-ray-detector rotation driver.

14. A method for controlling an X-ray diagnostic apparatus comprising: a tabletop movably supported along a reference line; a floor-mounted rotary arm mounted at one end on a floor rotatably about a substantially vertical first rotation axis intersecting the reference line within the movable range of the tabletop; a driver of the rotation of the floor-mounted rotary arm; a stand supported at the other end of the floor-mounted rotary arm rotatably about a substantially vertical second rotation axis; a driver of the rotation of the stand; a substantially C-shaped arm supported by the stand; an X-ray tube supported at one end of the C arm; an X-ray detector for forming an image supported at the other end of the C arm rotatably about a third rotation axis that substantially agrees with a shooting axis passing through an X-ray focus of the X-ray tube and a center of the detection surface; a driver of the rotation of the X-ray detector; a display screen and a controller, the method comprising the steps of:

rotating the floor-mounted rotary arm about the first rotation axis in such a manner that the floor-mounted rotary arm obliquely intersects the reference line at a specified angle by controlling the driver of the rotation of the floor-mounted rotary arm;

rotating the stand about the second rotation axis in such a manner that the third rotation axis substantially agrees with the first rotation axis by controlling the stand rotation driver; and

rotating the X-ray detector in such a manner as to maintain the orientation of the image on the display screen by controlling the X-ray-detector rotation driver.