A medical apparatus comprising a cable routing system comprising a flexible flat band configured to be able to be deformed from its stretched out shape without assuming a permanent changed form, and several attaching devices provided in predetermined intervals along a longitudinal direction of the band for attaching a cable to the band in a sliding manner, wherein the attaching devices are respectively provided with two protrusions protruding from one of an upper side and a lower side of the band and with a holding element attached to the two protrusions and extending at least partially across the width of the band along the one of the upper side and the lower side of the band, wherein the holding element comprises a pin attached to the two protrusions, wherein, for reducing static friction between the cable and the pin, the pin is attached to the protrusions in a rotatable manner around its axis, or the pin is provided with a slide coating or with a rotatable bushing, the band is made of carbon fiber or of spring steel, the band is configured to be twistable around an axis in the longitudinal direction of the band, and, in a stretched out rest position, the band is configured to be bent around axes in a direction perpendicular to the longitudinal direction of the band in both directions, and the medical apparatus comprises two holding devices (12', 12") attached to components of the medical apparatus and movable with respect to one another, and the holding devices (12', 12") and the cable routing system, in areas of ends of the band in its longitudinal direction, respectively comprise a junction device (13', 13") such that the band is movable with respect to at least one of the holding devices (12', 12") by the junction device (13', 13") at the junction device (13', 13"), and the band is rotatable around an axis perpendicular to the longitudinal direction of the band by the junction device (13', 13") at the junction device (13', 13"). a flexible flat band configured to be able to be deformed from its stretched out shape without assuming a permanent changed form, and several attaching devices provided in predetermined intervals along a longitudinal direction of the band for attaching a cable to the band in a sliding manner, wherein the attaching devices are respectively provided with two protrusions protruding from one of an upper side and a lower side of the band and with a holding element attached to the two protrusions and extending at least partially across the width of the band along the one of the upper side and the lower side of the band, wherein the holding element comprises a pin attached to the two protrusions, wherein, for reducing static friction between the cable and the pin, the pin is attached to the protrusions in a rotatable manner around its axis, or the pin is provided with a slide coating or with a rotatable bushing, the band is made of carbon fiber or of spring steel, the band is configured to be twistable around an axis in the longitudinal direction of the band, and, in a stretched out rest position, the band is configured to be bent around axes in a direction perpendicular to the longitudinal direction of the band in both directions, and the medical apparatus comprises two holding devices (12', 12") attached to components of the medical apparatus and movable with respect to one another, and the holding devices (12', 12") and the cable routing system, in areas of ends of the band in its longitudinal direction, respectively comprise a junction device (13', 13") such that the band is movable with respect to at least one of the holding devices (12', 12") by the junction device (13', 13") at the junction device (13', 13"), and the band is rotatable around an axis perpendicular to the longitudinal direction of the band by the junction device (13', 13") at the junction device (13', 13").