A patient transfer arrangement includes a movable substructure and a carrier member that is connected to the substructure and that is adapted to receive a patient in a sitting or lying position. A connecting device is detachably connectable to a complementary connecting device provided on a base unit of a medical treatment apparatus, in order to fasten the carrier member detachably to the medical treatment apparatus in such a position that a patient supported on the carrier member in a sitting or lying position is accessible to a medical treatment by means of a treatment unit of the medical treatment apparatus.
