Coil device and magnetic field generating device

Details Coil device and magnetic field generating device Coil device and magnetic field generating device

2005-04-22

2011-11-22

Marmor, II, Charles A (Department: 3735)

Surgery

Magnetic field applied to body for therapy

Electromagnetic coil

C600S009000

Reexamination Certificate

active

08062204

ABSTRACT:
Problems to be solved: to provide a coil device and a magnetic field generating device with reduced energy loss that are suitable for use in the thermotherapy method.Means for solving the problem: a coil device according to the present invention can be used in a magnetic field generating device for the thermotherapy method in which a magnetic flux is irradiated to the patient to selectively heat a specific portion of the patient. Said coil device is a bread-shaped coil device having a current path extending in the shape of a spiral in a substantially same plane, said current path comprising a hollow cylindrical member (10) of a nonmagnetic material inside which a space is formed and a plurality of conductive wires (11, 12) covered with an insulation material on the peripheries thereof. In the present invention, the current path comprising a plurality of conductive wires covered with an insulation material which are arranged in a circle, energy loss caused by the skin effect and energy loss caused by the line capacity can be reduced, making it possible to generate a strong magnetic field. Also, by using the hollow cylindrical member (10), it is possible to easily configure a current path in a predetermined diameter and to inhibit increase in temperature of the coil (3) to avoid fluctuation of the resonance frequency of the resonance circuit. With this, a magnetic field generating device that is suitable for use in thermotherapy, particularly cancer therapy, can be realized.

REFERENCES:
patent: 3946349 (1976-03-01), Haldeman, III
patent: 5208433 (1993-05-01), Hellegouarc'h et al.
patent: 5430274 (1995-07-01), Couffet et al.
patent: 5477035 (1995-12-01), Matsumoto et al.
patent: 6049042 (2000-04-01), Avellanet
patent: 6741152 (2004-05-01), Arz et al.
patent: 7045704 (2006-05-01), Areskoug
patent: 2001/0031906 (2001-10-01), Ishikawa et al.
patent: 2002/0103411 (2002-08-01), Bailey et al.
patent: 2002/0117320 (2002-08-01), Hyogo
patent: 2003/0216729 (2003-11-01), Marchitto et al.
patent: 2005/0103519 (2005-05-01), Brandsberg et al.
patent: 2007/0215606 (2007-09-01), Albaugh
patent: A 59-211985 (1984-11-01), None
patent: A 6-36869 (1994-02-01), None
patent: A 9-168484 (1997-06-01), None
patent: A 9-245949 (1997-09-01), None
patent: A 11-102781 (1999-04-01), None
patent: A 2002-360712 (2002-12-01), None
patent: A 2003-115368 (2003-04-01), None
patent: A 2003-205040 (2003-07-01), None
patent: A 2004-79318 (2004-03-01), None
patent: WO 95/22239 (1995-08-01), None
patent: WO 01/84571 (2001-11-01), None
patent: WO 0184571 (2001-11-01), None
Apr. 26, 2011 Office Action issued in Japanese Patent Application No. 2006-512606 (with English-language translation).

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