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Magnetic resonance imaging equipment

A magnetic resonance imaging and equipment technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve the problems of large thermal stress deformation of RF coils, affecting MRI system imaging, etc., to improve reliability and solve complex air duct structures , Eliminate the effect of temperature difference

Active Publication Date: 2019-10-22
THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In fact, if the wind speed is too fast, the overall temperature of the RF coil is low, but the circuit components themselves have a relatively high temperature, and the RF coil will generate large thermal stress deformation in the area where the circuit components are installed, which will affect MRI. system imaging

Method used

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[0039] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention Any modification of structure, change of proportional relationship or adjustment of size shall fall within the range covered by the technical content disclosed in the present invention without affecting the effect and purpose of the present invention. within range.

[0040] At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present invention without...

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Abstract

The invention discloses magnetic resonance imaging equipment. The equipment comprises a static magnetic field magnet (1), a gradient magnetic field coil (2) and an RF coil (3); the RF coil (3) and a cylindrical air duct shell (41) which is arranged on the inner side of the RF coil (3) limit air ducts (43); a sound insulation layer (42) is also arranged between the RF coil (3) and the air duct shell (41); the sound insulation layer (42) is used for separating the of air ducts(43); the air ducts (43) are communicated with a fan (7); at least one circuit element (5) is mounted on the area, corresponding to the air ducts (43), on the inner side face of the RF coil (3); the fan (7) comprises a motor and a control device, the motor drives a blade to supply air to the air ducts (43), and the control device can control the rotation speed of the motor according to the temperature in the air ducts (43). The magnetic resonance imaging equipment monitors the temperature in the air ducts so that the temperature condition of the RF coil (3) can be obtained more truly, and therefore effective cooling operation is adopted.

Description

technical field [0001] The present invention relates to a magnetic resonance imaging (imaging) device and a cooling structure of an RF (Radio Frequency, radio frequency) coil therein. Background technique [0002] A magnetic resonance imaging apparatus applies a high-frequency magnetic field to a subject placed in a static magnetic field, detects a magnetic resonance signal emitted from the subject by the application of the high-frequency magnetic field, and generates an image. Such a magnetic resonance imaging apparatus includes a gradient magnetic field coil that adds spatial position information to a magnetic resonance signal by applying a gradient magnetic field to a subject. Such a magnetic resonance imaging apparatus has an RF coil for applying a high-frequency magnetic field to a subject to detect magnetic resonance signals generated from the subject. Among the RF coils, there are a coil for both transmission and reception that applies a high-frequency magnetic field...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055
CPCA61B5/055
Inventor 邵晓宁程敬亮杨子涛孟炯
Owner THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV
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