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1. (WO2013145933) SUPERCONDUCTING MAGNET DEVICE, SUPERCONDUCTING COIL PROTECTION METHOD, AND MAGNETIC RESONANCE IMAGING DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/145933 International Application No.: PCT/JP2013/053905
Publication Date: 03.10.2013 International Filing Date: 18.02.2013
IPC:
A61B 5/055 (2006.01) ,G01R 33/3815 (2006.01) ,H01F 6/02 (2006.01) ,H01L 39/04 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
05
Measuring for diagnosis by means of electric currents or magnetic fields
055
involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
20
involving magnetic resonance
28
Details of apparatus provided for in groups G01R33/44-G01R33/6496
38
Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
381
using electromagnets
3815
with superconducting coils, e.g. power supply therefor
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
6
Superconducting magnets; Superconducting coils
02
Quenching; Protection arrangements during quenching
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
39
Devices using superconductivity or hyperconductivity; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof
02
Details
04
Containers; Mountings
Applicants:
株式会社 日立メディコ HITACHI MEDICAL CORPORATION [JP/JP]; 東京都千代田区外神田四丁目14番1号 秋葉原UDX Akihabara UDX Building, 14-1, Sotokanda 4-chome, Chiyoda-ku, Tokyo 1010021, JP
Inventors:
村田 幸弘 MURATA Yukihiro; JP
Agent:
磯野 道造 ISONO Michizo; 東京都千代田区平河町2丁目7番4号 砂防会館別館内 磯野国際特許商標事務所気付 c/o Isono International Patent Office, Sabo Kaikan Annex, 7-4, Hirakawa-cho 2-chome, Chiyoda-ku, Tokyo 1020093, JP
Priority Data:
2012-07921230.03.2012JP
Title (EN) SUPERCONDUCTING MAGNET DEVICE, SUPERCONDUCTING COIL PROTECTION METHOD, AND MAGNETIC RESONANCE IMAGING DEVICE
(FR) DISPOSITIF À AIMANT SUPRACONDUCTEUR, PROCÉDÉ DE PROTECTION DE BOBINE SUPRACONDUCTRICE, ET DISPOSITIF D'IMAGERIE PAR RÉSONANCE MAGNÉTIQUE
(JA) 超電導磁石装置、超電導コイルの保護方法、および、磁気共鳴画像装置
Abstract:
(EN) A superconducting magnet device is characterized by comprising forcible quench coils (30A to 40B) that cause AC loss in superconducting coils (10A to 20B) and a switching element (52) that is a switching means for controlling the actuation of the forcible quench coils, wherein the forcible quench coils (30A to 40B) are each disposed corresponding to each of the superconducting coils (10A to 20B). The superconducting magnet device is further characterized in that the turn-on voltage of the switching element (52) is higher than the voltage applied across both ends of the superconducting coil group (10A to 20B) while the superconducting magnet device is performing a rated operation.
(FR) L'invention concerne un dispositif à aimant supraconducteur caractérisé par le fait qu'il comprend des bobines d'évanouissement forcé de supraconductivité (de 30A à 40B) qui provoquent une perte de courant alternatif dans des bobines supraconductrices (10A à 20B) et un élément de commutation (52) qui est un moyen de commutation pour commander l'actionnement des bobines d'évanouissement forcé de supraconductivité, les bobines d'évanouissement forcé de supraconductivité (30A à 40B) étant chacune disposée de manière correspondante à chacune des bobines supraconductrices (10A à 20B). Le dispositif à aimant supraconducteur est en outre caractérisé par le fait que la tension d'actionnement de l'élément de commutation (52) est supérieure à la tension appliquée entre les deux extrémités du groupe de bobines supraconductrices (10A à 20B) pendant que le dispositif à aimant supraconducteur est en fonctionnement nominal.
(JA)  超電導コイル(10A~20B)に交流損失を発生させる強制クエンチ用コイル(30A~40B)と、強制クエンチ用コイルの作動を制御するスイッチング手段であるスイッチング素子(52)とを備え、強制クエンチ用コイル(30A~40B)が、複数の超電導コイル(10A~20B)に対してそれぞれ設置されることを特徴とする。さらに、スイッチング素子(52)のターンオン電圧が、超電導磁石装置が定格運転している際に超電導コイル群(10A~20B)の両端にかかる電圧よりも高いことを特徴とする。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)