1. A device for recording an intraluminal sectional image of a human medical patient, comprising: an imaging instrument for recording the intraluminal sectional image; a transport unit for moving the imaging instrument in a lumen of the patient at a defined speed over a defined distance; a guide pipe constructed and arranged for guiding the imaging instrument within the guide pipe, the guide pipe comprising: an internal, hollow, nonlinear path constructed and arranged to guide the imaging instrument, wherein a diameter of the internal hollow path is has a curved shape with an diameter matched to an external diameter of the imaging instrument, material which is transparent for a radiation or for a wave used in the recording, and a marking which is detectable at the recorded sectional image at a known position on the guide pipe; and a control and evaluation unit which carries out a registration of the imaging instrument with the guide pipe using the marking on the guide pipe which is visible in the sectional image.