| 摘要 |
In a method for fast angulation changes in a C-arm x-ray system, and a foot switch for effecting such fast angulation, a pedal of the foot switch that normally has a function not related to angulation of the C-arm is either permanently, or temporarily programmed, to operate as a pedal that, when depressed, automatically moves the C-arm to a predetermined angulation. The pedal can be movable between two positions, in order to selectively, automatically move the C-arm to either of two predetermined angulation positions, or can be used in conjunction with another pedal for that purpose. The pedal can also be temporarily given a security function and/or a radiation triggering function.
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