<;P>;PROBLEM TO BE SOLVED: To guide a medicine by a magnetic field to an affected part in the deep part of a body. <;P>;SOLUTION: A medical tube is provided, which includes a ferromagnetic part at the distal end or at least in a part of the tube. It is preferable that the ferromagnetic part consists of an electromagnet or a permanent magnet. <;P>;COPYRIGHT: (C)2010,JPO&INPIT