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Permanent-magnet magnetic resonance imaging device

A magnetic resonance imaging and permanent magnet technology, applied in magnetic resonance measurement, measuring devices, measuring magnetic variables, etc., can solve problems such as magnet temperature instability, avoid heat transfer to magnets, solve temperature instability, and ensure quality. Effect

Pending Publication Date: 2019-06-07
RAY PLUS MEDICAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention proposes a permanent magnetic resonance imaging device, which aims to solve the problem in the prior art that the gradient coil transfers heat to the magnet, thereby causing the temperature instability of the magnet

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  • Permanent-magnet magnetic resonance imaging device
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  • Permanent-magnet magnetic resonance imaging device

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Embodiment Construction

[0021] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0022] see figure 1 , figure 1 It is a schematic structural diagram of a permanent magnetic resonance imaging apparatus provided by an embodiment of the pre...

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Abstract

The invention provides a permanent-magnet magnetic resonance imaging device, which comprises two parallelly-arranged magnets, two parallelly-arranged gradient coils and two heat insulation devices. The two gradient coils are arranged between the two magnets, a preset gap is formed between each gradient coil and the magnet on the corresponding side, each gap is provided with the corresponding heatinsulation device, and each heat insulation device is used for insulating heat of the corresponding gradient coil. According to the permanent-magnet magnetic resonance imaging device, the gap betweeneach gradient coil and the magnet on the corresponding side is provided with the corresponding heat insulation device, each heat insulation device insulates the heat emitted by the corresponding gradient coil, the heat is blocked from being radiated and conducted, convection of the heat between the gradient coils and the magnets on the corresponding sides can further be prevented, thus the heat isprevented from being transmitted to the magnets, the temperature stability of the magnets is guaranteed, and then the image quality is guaranteed.

Description

technical field [0001] The present invention relates to the technical field of magnetic resonance imaging, in particular to a permanent magnetic resonance imaging device. Background technique [0002] Magnetic resonance imaging equipment is one of the greatest inventions of the last century. It can be used to scan almost every part of the human body without ionizing radiation damage to the human body. Gradient coil is one of the core components of magnetic resonance imaging equipment. Its main function is to convert electrical energy into magnetic energy, which is used to generate a three-dimensional linear gradient magnetic field for magnetic resonance imaging, and to perform layer selection, phase encoding and frequency of magnetic resonance imaging signals. coding. [0003] At present, an open permanent magnetic resonance imaging system includes: an upper magnet and a lower magnet arranged side by side with a certain gap, and an upper gradient coil and a lower gradient c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/383G01R33/34
Inventor 连建宇王义槐董聪坤李杰银
Owner RAY PLUS MEDICAL TECH CO LTD
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