Patent
A self-fastening cage surrounding a magnetic resonance device and methods thereof
TLDR
In this paper, a self-fastening cage of a magnetic resonance device (MRD) is presented for providing a homogeneous, stable and uniform magnetic field, characterized by an outside shell comprising at least three flexi-jointed superimposed walls.Abstract:
The present invention discloses a novel self-fastening cage of a magnetic resonance device (MRD) (100) for providing a homogeneous, stable and uniform magnetic field therein, characterized by an outside shell comprising at least three flexi-jointed superimposed walls (1) disposed in a predetermined arrangement clockwise or counterclockwise. In a technology of self-fastening cage, the invention teaches an effective multi-streamed MRD comprising a cage including a closed magnetic circuit constructed from strong permanent magnets; and an optional shimming mechanism selected from an array of active shim coils, passive shimming elements or any combination thereof; a contained cavity within which the magnetic field strength is approximately uniform; and a means, such as a plurality of conveyor belts, pipes or any other transportation means by which a plurality of samples are introduced into the region of uniform magnetic field; such that magnetic resonance measurements are made on a plurality of samples within the region of uniform magnetic field. The invention depicts a cost effective method for obtaining a self-fastening cage of a MRD (100) characterized by an outside shell comprising superimposing at least three flexi-jointed walls (1) so that a homogeneous, stable and uniform magnetic field is provided therein.read more
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References
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Patent
Magnetic field generator for MRI
Shigeo Hashimoto,Masaaki Aoki +1 more
TL;DR: In this article, the authors proposed a magnetic field generator for MRI, where a plurality of permanent magnet elements are arranged into a ring on the inner surface of a yoke having a polygonal hollow.
Patent
Baggage inspection apparatus and method for determining the presence of explosives
Armando De Los Santos,James D. King,William L. Rollwitz,G. A. Matzkanin,Phillip Allen Hornung +4 more
TL;DR: In this paper, a conveyor system was used to transport a bag past a first magnet (18) to achieve an initial nuclear magnetic resonance (NMR) polarization of a selected element.
PatentDOI
Cylindrical nmr bias magnet apparatus employing permanent magnets and methods therefor.
TL;DR: In this paper, a plurality of insulating sleeves which may be rotated are disposed about the periphery of a structure having a curvilinear cross section such as a cylinder, filled with stacks of slabs of permanent magnet material forming slugs and having an anisotropic axis of magnetic orientation aligned at an azimuth corresponding to a=2φ.
Patent
A device for generating a variable magnetic field
D.P.F. Hurley,J. M. D. Coey +1 more
TL;DR: In this paper, a device for generating a variable composite magnetic field comprises top and bottom concentric ring members (3, 4) which define a main central axis (5) and a central area (4) within which the magnetic field is formed.
Patent
Octapole magnetic resonance gradient coil system with elongate azimuthal gap
TL;DR: In this article, a magnetic resonance imaging apparatus (MRAI) includes a primary magnet assembly for generating a temporarily constant magnetic field through an examination region, a gradient coil assembly for inducing magnetic field gradients across the examination region (20), and a radio frequency coil for receiving resonance signals from the examination regions.