C-arm x-ray system and method of compensation for C-arm deformations and oscillations
An x-ray system having a C-arm 1 and an associated method are provided. The x-ray system includes at least one adjustment unit for at least one component of the x-ray system that is actively connected to the C-arm. The at least one adjustment unit compensates for a spatial change in position of the component caused by deformation and/or oscillation of the C-arm.
1. An x-ray system comprising:
a C-arm comprising:
at least one adjustment unit that is arranged between a component of the x-ray system and the C-arm and connects the component to the C-arm in a mechanically moveable manner,
wherein the at least one adjustment unit is operable to compensate for a spatial change in position of the component caused by deformation, oscillation, or deformation and oscillation of the C-arm, and
wherein the component comprises an x-ray emitter, an x-ray detector, an x-ray beam diaphragm, or an x-ray grid.
2. The x-ray system as claimed in claim 1 , wherein the deformation, the oscillation, or the deformation and the oscillation occur on account of dead weight of the component, on account of a rotational movement of the C-arm, or a combination thereof.
3. The x-ray system as claimed in claim 2 , wherein the rotational movement is rotational movement on account of acceleration and braking of the C-arm.
4. The x-ray system as claimed in claim 1 , wherein the at least one adjustment unit has one to six degrees of freedom.
5. The x-ray system as claimed in claim 4 , wherein the at least one adjustment unit comprises a hexapod unit.
6. The x-ray system as claimed in claim 1 , further comprising at least one measuring unit operable to determine a spatial change in position.
7. The x-ray system as claimed in claim 1 , further comprising at least one control unit operable to control the at least one adjustment unit such that the at least one adjustment unit compensates for a spatial change in position of the component caused by the deformation or the oscillation of the C-arm.
8. The x-ray system as claimed in claim 2 , wherein the at least one adjustment unit has one to six degrees of freedom.
9. The x-ray system as claimed in claim 8 , wherein the at least one adjustment unit comprises a hexapod unit.
10. The x-ray system as claimed in claim 2 , further comprising at least one measuring unit operable to determine a spatial change in position.
11. The x-ray system as claimed in claim 5 , further comprising at least one measuring unit operable to determine a spatial change in position.
12. The x-ray system as claimed in claim 2 , further comprising at least one control unit operable to control the at least one adjustment unit such that the at least one adjustment unit compensates for a spatial change in position of the component caused by the deformation or the oscillation of the C-arm.
13. The x-ray system as claimed in claim 5 , further comprising at least one control unit operable to control the at least one adjustment unit such that the at least one adjustment unit compensates for a spatial change in position of the component caused by the deformation or the oscillation of the C-arm.
14. The x-ray system as claimed in claim 6 , further comprising at least one control unit operable to control the at least one adjustment unit such that the at least one adjustment unit compensates for a spatial change in position of the component caused by the deformation or the oscillation of the C-arm.
15. A method for compensating for a deformation or oscillation of a C-arm of an x-ray system, the method comprising:
compensating for a spatial change in position of components caused by deformation, oscillation, or deformation and oscillation of the C-arm by an adjustment unit that is arranged so as to be mechanically moveable between the C-arm and one of the components of the x-ray system,
wherein the one component comprises an x-ray emitter, an x-ray detector, an x-ray beam diaphragm or an x-ray grid.
16. The method as claimed in claim 15 , further comprising determining movements of the adjustment unit required to compensate for the change in position in advance as a function of positions of the C-arm.
17. The method as claimed in claim 16 , wherein the movements of the adjustment unit required to compensate for the change in position are implemented continuously during operation of the x-ray system.
18. The method as claimed in claim 16 , wherein the determining comprises determining from a determination of a change in position.
19. The method as claimed in claim 18 , wherein the change in position is determined from a position of the component relative to a point of reference or relative to a further component.
20. The method as claimed in claim 17 , wherein the determining comprises determining from a determination of a change in position.