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Superconducting magnet assembly for magnetic resonance imaging and manufacturing method thereof

A technology for magnetic resonance imaging and superconducting magnets, which is applied in the manufacture of superconducting magnets/coils, inductors/transformers/magnets, magnetic objects, etc. , the effect of reducing the length

Active Publication Date: 2017-05-10
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Usually, the diameter of the examination cavity is about 60cm. If the examinee suffers from claustrophobia, he often feels uncomfortable during the MRI examination; in addition, the cost of the magnet will also increase as the magnet is too long

Method used

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  • Superconducting magnet assembly for magnetic resonance imaging and manufacturing method thereof
  • Superconducting magnet assembly for magnetic resonance imaging and manufacturing method thereof
  • Superconducting magnet assembly for magnetic resonance imaging and manufacturing method thereof

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] The superconducting magnet assembly for magnetic resonance imaging is usually filled with liquid helium in the tank of the cryostat to immerse the superconducting coil, so that the superconducting coil remains in a low-temperature superconducting state, and a stable strong magnetic field is generated after the coil is excited.

[0042] see Figure 1-3 , an existing superconducting magnet assembly for magnetic resonance imaging, which includes: a coil frame 4, a coil assembly 1 composed of several coil units arranged on the coil frame 4, and a housing for accommodating the coil assembly 1 Cryostat 5. The cryostat is assembled from several layers of concentric cylindrical cavities; adjacent to the axial ends of the coil frame are provided with first-type and second-type coil slots (respectively for accommodating the main coil for generating the ma...

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Abstract

The invention discloses a superconducting magnet assembly for magnetic resonance imaging. The superconducting magnet assembly comprises a coil former, a plurality of coils arranged on the coil former, a cryostat for holding the coil former and the coils; the cryostat is assembled from a plurality of layers of concentric cylinder cavity; a first type coil slot and a second type coil slot are arranged at the axial end close to the coil former, the distance between the first type coil slot and the coil former axis is different from the distance between the second type coil slot and the coil former axis and at least one type of the coil slot is of an open structure in axial direction. The invention further discloses a superconducting magnet assembly manufacturing method. The superconducting magnet assembly is capable of shortening the length of the magnet and reducing the production and manufacturing cost.

Description

[0001] 【Technical field】 [0002] The invention relates to magnetic resonance imaging technology, in particular to a superconducting magnet component and a manufacturing method for magnetic resonance imaging. [0003] 【Background technique】 [0004] Magnetic resonance, also known as magnetic resonance imaging (Magnetic Resonance Imaging, MRl), spin imaging (spin imaging), nuclear magnetic resonance imaging (NucIear Magnetic Resonance Imaging, NMRl), is another major advancement in medical imaging after CT. Since its application in the 1980s, it has developed at an extremely fast speed. The basic principle is to place the human body in a special magnetic field, and when the measured object is placed in the magnetic field, the hydrogen atoms in the body can be polarized. Use radio frequency pulses to excite the hydrogen nuclei in the human body, causing the hydrogen nuclei to resonate and absorb energy. After the radio frequency pulse is stopped, the hydrogen nucleus emits a ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F6/04H01F6/06H01F41/02G01R33/381
Inventor 邹利军
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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