Guidance chain for guiding cables or other lines in a medical diagnostic apparatus

A medical diagnostic apparatus comprising:

• a frame;
• a curved member rotatable relative to the frame;
• and
• a guidance chain for guiding at least one connection line passing between the frame and the curved member, the guidance chain including
• a plurality of consecutive chain elements having radially inner and outer sides, the consecutive chain elements are moveable relative each other about a rotation axis for producing a folding movement of the guidance chain and folded and unfolded portions of the guidance chain, wherein the chain elements are positioned on the folded and unfolded portions of the guidance chain at a pre-set curvature and have radial extensions of the rotation axes along the folded and unfolded portions originating from substantially the same point,
• wherein the guidance chain is in contact with the curved member along a contacting surface, and
• wherein the pre-set curvature of the guidance chain is adapted to the curvature of the curved member at the contacting surface.