Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1994-08-05
1995-03-07
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
1286535, 324318, 324319, G01R 3320, H01F 722
Patent
active
053962079
ABSTRACT:
A magnetic resonance imaging (MRI) magnet having an annularly cylindrical-shaped vacuum enclosure with a longitudinal axis, first and second longitudinal ends, a first larger diameter bore extending from the first towards the second longitudinal end, and a second smaller diameter bore extending from the second longitudinal end to the first bore. First and second superconductive coils are placed in the vacuum enclosure with the first coil generally circumferentially surrounding the first bore and the second coil circumferentially surrounding the second bore, wherein the radial distance of the radially innermost portion of the second coil from the axis is smaller than the radius of the first bore. The second longitudinal end of the vacuum enclosure fits on a patient's shoulders with the patient's head passing through the second bore and extending into the first bore for MRI brain imaging.
REFERENCES:
patent: 4500860 (1985-02-01), Vermilyea
patent: 4580120 (1986-04-01), Jacquot
patent: 4701736 (1987-10-01), McDougall et al.
patent: 4724412 (1988-02-01), Kalafala
patent: 4924198 (1990-05-01), Laskaris
patent: 4986078 (1991-01-01), Laskaris
patent: 5307039 (1994-04-01), Chari et al.
patent: 5332987 (1994-07-01), Hennessy et al.
U.S. Patent Application Ser. No. 08/260,433, filed Jun. 15, 1994, by E. T. Laskaris et al., "Open MRI Magnet with Superconductive Shielding".
U.S. Patent Application Ser. No. 08/237,516, filed Apr. 29, 1994, by E. T. Laskaris et al., "Pancake MRI Magnet with Modified Imaging Volume".
U.S. Patent Application Ser. No. 08/223,200, filed Apr. 5, 1994, by E. T. Laskaris et al., "Open MRI Magnet With Uniform Magnetic Field".
2-page Sales Brochure from Houston Advanced Researach Center entitled "MRI Magnets with Unprecedented Patient Access".
Concurrently filed U.S. Patent Application Docket No. RD-23698 by Bizhan Dorri et al., entitled "Over-Shoulder MRI Magnet for Human Brain Imaging".
Dorri Bizhan
Laskaris Evangelos T.
Ogle Michele D.
Barrera Raymond M.
Erickson Douglas E.
General Electric Company
Picard Leo P.
Webb II Paul R.
LandOfFree
On-shoulder MRI magnet for human brain imaging does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with On-shoulder MRI magnet for human brain imaging, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On-shoulder MRI magnet for human brain imaging will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1409013