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1. (WO1991017454) MAGNETIC FIELD GENERATING ASSEMBLY
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/017454 International Application No.: PCT/GB1991/000663
Publication Date: 14.11.1991 International Filing Date: 26.04.1991
Chapter 2 Demand Filed: 12.11.1991
IPC:
G01R 33/38 (2006.01) ,G01R 33/385 (2006.01) ,G01R 33/422 (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
385
using gradient magnetic field coils
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
42
Screening
422
of the radiofrequency field
Applicants:
OXFORD MEDICAL LIMITED [GB/GB]; Osney Mead Oxford OX2 0DX, GB (AllExceptUS)
E.I. DU PONT DE NEMOURS AND COMPANY [US/US]; 1007 Market Street Wilmington, DE 19898, US (AllExceptUS)
MCDOUGALL, Ian, Leitch [GB/GB]; GB (UsOnly)
ARMSTRONG, Alan, George, Marcel [GB/GB]; GB (UsOnly)
HAWKES, Robert, Carter [GB/GB]; GB (UsOnly)
Inventors:
MCDOUGALL, Ian, Leitch; GB
ARMSTRONG, Alan, George, Marcel; GB
HAWKES, Robert, Carter; GB
Agent:
GILL JENNINGS & EVERY; 53/64 Chancery Lane London WC2A 1HN, GB
Priority Data:
9009577.927.04.1990GB
Title (EN) MAGNETIC FIELD GENERATING ASSEMBLY
(FR) ENSEMBLE GENERATEUR DE CHAMP MAGNETIQUE
Abstract:
(EN) A magnetic field generating assembly for use in NMR apparatus comprises a primary magnetic field generator (5) for generating a primary magnetic field which is substantially homogeneous in the working region (16). The primary magnetic field generator is constructed such that an object to be examined can be introduced from outside the assembly into the working region (16) in a direction transverse to the direction of magnetic flux through the working region. Gradient magnetic field coils (14, 15) are provided for imposing one or more magnetic field gradients through the working region. The gradient magnetic field coils are movable relative to the primary magnetic field generator (5) for positioning locally to the position of an object to be examined in the working region.
(FR) Un ensemble générateur de champ magnétique destiné à un appareil de résonance magnétique nucléaire comporte un générateur (5) de champ magnétique primaire servant à générer un champ magnétique primaire sensiblement homogène dans la zone de travail (16). Le générateur de champ magnétique primaire est configuré de sorte que l'on peut introduire un objet à examiner dans la zone de travail (16) à partir de l'extérieur de l'ensemble et dans un sens transversal au sens du flux magnétique dans ladite zone de travail. On a prévu des bobines de champ magnétique à gradient (14, 15) pour créer un ou plusieurs gradients de champ magnétique dans la zone de travail. Ces bobines peuvent se déplacer de manière relative au générateur de champ magnétique primaire (5) afin qu'elles viennent se placer à proximité de la position d'un objet à examiner dans la zone de travail.
Designated States: JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0526514US5337001JPH05507005