Medical C-arm X-ray unit for use in e.g. angiography for detecting stenosis for treating peripheral vascular disease in patient, has C-arm designed that radius of C-arm is variable by system controller
Die Erfindung betrifft ein medizinisches Röntgengerät mit einer Trägervorrichtung in Form eines C-Bogens, wobei an einem ersten Ende des C-Bogens eine Röntgenquelle und an einem zweiten Ende des C-Bogens ein Röntgendetektor angeordnet sind, wobei der C-Bogen derart ausgebildet ist, dass der Radius des C-Bogens veränderbar ist.The unit has an X-ray source (11) and an X-ray detector (12) i.e. flat image detector, arranged at two ends of a C-arm (10.1), respectively. The C-arm is designed that radius (R0) of the C-arm is variable by a system controller. The C-arm comprises a set of telescopic arc connecting joints (16), and is divided into three arc elements (18). The C-arm comprises motors and is arranged at an articulated robot, where the joints are folded, compressed or stretched by the motors. A collision detection device detects and prevents collisions.