Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1989-03-24
1990-05-08
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324318, G01R 3320
Patent
active
049241850
ABSTRACT:
A magnet apparatus for use in magnetic resonance imaging systems comprises a superconducting coil which produces a main magnetic field in a working volume defined in the bore in which a patient is accommodated and a cryostat accommodating the superconducting coil and keeping the superconducting coil in the superconducting state. This cryostat includes only one thermal radiation shield and is configured with a smaller volume than that of conventional cryostats with no reduction in the heat insulation effects. Therefore, the dimensions of the bore are determined to comply with 1.0.ltoreq.L/B<1.9 where L is the length along the Z axis of the bore and B is its diameter. Thus, the length L along the Z axis of the bore is determined to be relatively short while the dimensions of the working volume necessary for diagnosis is secured in the bore, with the result that the oppressive sensation that the patient has in the bore is lessened.
REFERENCES:
patent: 4701736 (1987-10-01), McDougall et al.
patent: 4733189 (1988-03-01), Pillsbury et al.
patent: 4837541 (1989-06-01), Pelc
Patent Abstracts of Japan, vol. No. 340 (E-455) (2396), Nov. 18, 1986; & JP-A-61 144 802 (Toshiba Corp.), 02.07.86.
Kabushiki Kaisha Toshiba
Tokar Michael J.
LandOfFree
Magnet apparatus for use in magnetic resonance imaging system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnet apparatus for use in magnetic resonance imaging system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnet apparatus for use in magnetic resonance imaging system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2351728