Positioning of therapy focus of therapy unit, such as lithotripter using X-ray unit with C-shaped support frame, so that X-ray target mark and therapy focus are automatically adjusted so that they coincide

摘要

Method has the following steps: pre-calibration so that the focus of the therapy device (2) coincides with the X-ray target mark (6) in the iso-center of the X-ray C support frame; attachment of a contactless measurement sensor (3), provision of a reference point (8) for the measurement sensor, generation of a position signal for the positioning of the therapy focus using the measurement sensor and measurement and monitoring of the therapy focus relative to the target mark. An Independent claim is made for a device for positioning a therapy focus of a therapy device. If the therapy focus and X-ray target cross do not coincide a warning signal is generated and the treatment is interrupted. The two can then be automatically repositioned.