Medical device for irradiating a charged particle

There is provided a medical device for irradiation with charged particles can be carried out with the irradiation from above and from the horizontal direction and preparation and monitoring work without any separate device, such as a moving car or the like, can be performed with a patient bed (8 ) on which a patient lies, a transport arrangement (4) for feeding and transport of charged particle beams to the patient's bed, an irradiation field generating means (5) for generating an irradiation field for the transported by the transporting arrangement rays and an irradiation body (1), the is provided so as to be rotatable about an axis of rotation, wherein the irradiation field forming means is arranged eccentrically so that an irradiation axis running the same through a different from the rotation axis position, and wherein the patient bed on one side of the transport assembly e ntgegengesetzt is arranged to a plane containing the axis of rotation and substantially perpendicular to the axis of irradiation.