A positioning system for an imaging device, in particular a MR imaging device to position an insertion element on or in the body of a subject, in particular an animal, wherein the imaging device comprises a bore, in which the subject is received, wherein the positioning system comprises a robot which can be at least partially arranged in the bore of the imaging device and comprises a holding element to hold the insertion element wherein the robot further comprises at least one actuator acting on the holding element, such that an end portion of the insertion element is movable, wherein said at least one actuator is arranged with a distance D from the bore to minimize magnetic and/or electromagnetic interferences between the imaging device and the at least one actuator and said first actuator is coupled to the holding element in a form-fit- and/or a force-fit-manner.
