The magnetic material (62 and 72) and the active agent (61 and 71) the target element which it possesses (60 and 70) to move via object, the aforementioned target element (60 and 70) to be categorized to the specified position inside aforementioned object, the aforementioned active agent (61 and 71) being the device which is made to convert actively: In order first has low magnetic field strength the sub zone (52) and the second sub zone which has a higher magnetic field strength (54) range of vision (28) to be formed inside in order the choice magnetic field which has the pattern in the space of magnetic field strength (50), choice field signal generator unit in order to generate (110) and the choice field element (116), the especially choice field magnet or the choice means which possess the coil and the, aforementioned magnetic material (62 and 72) for magnetization to change locally, depending upon the magnetic Drive field range of vision (28) the sub of aforementioned two insideReaching to the position where the zone (52 and 54), Drive field signal generator unit in order to change the position inside the space (130) and the Drive field coil (136a, 136b and 136c) the Drive means which it possesses and the, aforementioned target element (60 and 70) it moves to the direction which is specified via aforementioned object, by portable command the aforementioned target element (60 and 70) it lays out in the position where the inside of aforementioned object is desired, when the aforementioned target element (60 and 70) aforementioned it is desired, the aforementioned active agent (61 and 71) the appropriateness in order to convert activelyIn order in order to generate the magnetic field, the Drive field coil (136a, 136b and 136c) to generate and to offer control current and aforementioned Drive field signal generator unit (130) the control means which are controlled (150) with it regards the device which it possesses.磁性材料(62、72)およびアクティブ・エージェント(61、71)を有するターゲット要素(60、70
