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1. (WO1999005531) PERMANENT MAGNET ASSEMBLIES FOR USE IN MEDICAL APPLICATIONS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1999/005531 International Application No.: PCT/IL1998/000339
Publication Date: 04.02.1999 International Filing Date: 19.07.1998
Chapter 2 Demand Filed: 05.02.1999
IPC:
G01R 33/38 (2006.01) ,G01R 33/383 (2006.01) ,H01F 7/02 (2006.01)
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
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
383
using permanent magnets
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7
Magnets
02
Permanent magnets
Applicants:
KATZNELSON, Ehud [IL/IL]; IL (UsOnly)
ZUK, Yuval [IL/IL]; IL (UsOnly)
SASSON, Michael [IL/IL]; IL (UsOnly)
TAMIR, Zeev [IL/IL]; IL (UsOnly)
ODIN TECHNOLOGIES LTD. [IL/IL]; P.O. Box 248 20698 Yokneam Elit, IL (AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CU, CY, CZ, DE, DK, EE, ES, FI, FR, GA, GB, GE, GH, GM, GN, GR, GW, HR, HU, ID, IE, IL, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW)
Inventors:
KATZNELSON, Ehud; IL
ZUK, Yuval; IL
SASSON, Michael; IL
TAMIR, Zeev; IL
Agent:
EITAN, PEARL, LATZER & COHEN-ZEDEK; Lumir House Maskit Street 22 46733 Herzelia, IL
Priority Data:
08/898,77323.07.1997US
Title (EN) PERMANENT MAGNET ASSEMBLIES FOR USE IN MEDICAL APPLICATIONS
(FR) ENSEMBLES AIMANTS PERMANENTS DESTINES A ETRE UTILISES DANS DES APPLICATIONS MEDICALES
Abstract:
(EN) Permanent magnet (10) assemblies are disclosed for use in medical applications, particularly permanent magnet assemblies (11, 12) for use in Magnetic Resonance Imaging (MRI) and/or Magnetic Resonance Therapy (MRT) to produce a volume of substantially uniform magnetic field in a restricted part of the patient's body in a region either adjacent to the surface of one permanent magnet assembly (10) or between a set of a first and second permanent magnet assemblies (15, 16), leaving open access to the patient's body. The assemblies consist of a plurality of annular (20) concentric magnets spaced-apart along their axis of symmetry. A method for constructing such annular permanent magnetic (21) assemblies is disclosed, using equi-angular segments permanently magnetized.
(FR) Cette invention concerne des ensembles aimants permanents destinés à être utilisés dans des applications médicales, plus particulièrement des ensembles aimants permanents destinés à être utilisés dans l'imagerie par résonance magnétique (IRM) et/ou en thérapie par résonance magnétique (TRM) pour produire un volume de champ magnétique sensiblement uniforme dans une partie restreinte du corps d'un patient dans une région qui est soit adjacente à la surface d'un ensemble aimant permanent soit située entre un ensemble constitué d'un premier et d'un deuxième ensembles aimants permanents, pour permettre d'accéder librement au corps du patient. Les ensembles sont constitués d'une pluralité d'aimants concentriques annulaires espacés les uns des autres le long de leur axe de symétrie. On décrit un procédé permettant de construire de tels ensembles aimants permanents annulaires dans lequel on utilise des segments equi-angulaires magnétisés de manière permanente.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, HR, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)