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1. WO1999027846 - COIL HARNESS ASSEMBLY FOR INTERVENTIONAL MRI APPLICATION

Publication Number WO/1999/027846
Publication Date 10.06.1999
International Application No. PCT/IB1998/002111
International Filing Date 25.11.1998
Chapter 2 Demand Filed 01.06.1999
IPC
G01R 33/34 2006.1
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
28Details of apparatus provided for in groups G01R33/44-G01R33/6496
32Excitation or detection systems, e.g. using radiofrequency signals
34Constructional details, e.g. resonators
CPC
G01R 33/34053
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
28Details of apparatus provided for in groups G01R33/44 - G01R33/64
32Excitation or detection systems, e.g. using radio frequency signals
34Constructional details, e.g. resonators ; , specially adapted to MR
34046Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
34053Solenoid coils; Toroidal coils
G01R 33/34069
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
28Details of apparatus provided for in groups G01R33/44 - G01R33/64
32Excitation or detection systems, e.g. using radio frequency signals
34Constructional details, e.g. resonators ; , specially adapted to MR
34046Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
34069Saddle coils
G01R 33/34084
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
28Details of apparatus provided for in groups G01R33/44 - G01R33/64
32Excitation or detection systems, e.g. using radio frequency signals
34Constructional details, e.g. resonators ; , specially adapted to MR
34084implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts
G01R 33/3678
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
28Details of apparatus provided for in groups G01R33/44 - G01R33/64
32Excitation or detection systems, e.g. using radio frequency signals
36Electrical details, e.g. matching or coupling of the coil to the receiver
3678involving quadrature drive or detection, e.g. a circularly polarized RF magnetic field
Applicants
  • HITACHI MEDICAL CORPORATION [JP]/[JP]
Inventors
  • RICHARD, Mark, Adrian
  • KORMOS, Donald, William
Agents
  • ASAMURA PATENT OFFICE
  • STREHL, SCHÜBEL-HOPF & PARTNER
Priority Data
60/066,98028.11.1997US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) COIL HARNESS ASSEMBLY FOR INTERVENTIONAL MRI APPLICATION
(FR) ENSEMBLE HARNAIS DE BOBINAGE POUR APPLICATION EXPLORATRICE D'IMAGERIE PAR RESONANCE MAGNETIQUE (IRM)
Abstract
(EN) A coil assembly for use in MRI imaging includes a harness (26) having a base (28). First and second arm members (30a) extend from a first side of the base and above and over the base and third and fourth arm members (30b) extend from a second side of the base and above and over the base. A first cross member (34a) extends between the first arm member and the second arm member and a second cross member (34b) extends between the third arm member and the fourth arm member. An end of the first arm member is aligned with and detachably connected to an end of the third arm member and an end of the second arm member is aligned with and detachably connected to an end of the fourth arm member. First and second coil members each extend along the harness. The first coil member may be a saddle coil and the second coil member may be a solenoid coil configured to establish a quadrature arrangement.
(FR) L'invention concerne un ensemble bobinage pour IRM, qui comprend un harnais doté d'une base. Des premier et deuxième bras s'étendent depuis un premier côté de la base, par dessus celle-ci, et des troisième et quatrième bras s'étendent depuis un second côté de la base, par dessus celle-ci. Un première barre transversale s'étend entre les premier et deuxième bras, et une seconde barre transversale s'étend entre les troisième et quatrième bras. Une extrémité du premier bras est alignée avec une extrémité du troisième bras, fixée libérable à celle-ci, et une extrémité du deuxième bras est alignée avec une extrémité du quatrième bras, fixée libérable à celle-ci. Des premier et second bobinages s'étendent chacun le long du harnais. Le premier bobinage peut se présenter sous la forme d'une bobine en sellette, et le second bobinage peut se présenter sous la forme d'une bobine de solénoïde dont la configuration permet d'établir un arrangement en quadrature.
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