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A magnetic resonance imaging device

A magnetic resonance imaging and equipment technology, applied in medical science, diagnosis, diagnostic recording/measurement, etc., can solve problems such as affecting MRI system imaging, large thermal stress deformation of RF coils, etc., to solve the complex structure of air ducts and improve reliability. , the effect of the movement to reduce the airflow

Active Publication Date: 2021-05-28
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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  • A magnetic resonance imaging device
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specific Embodiment approach

[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 a magnetic resonance imaging device, comprising 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) installed inside the RF coil (3) ) defines the air duct (43), and a sound insulation layer (42) is also provided between the RF coil (3) and the air duct shell (41), and the sound insulation layer (42) separates multiple air ducts (43); The channels (43) are all connected to the fan (7); the inner surface of the RF coil (3), corresponding to the area of ​​the air channel (43), is equipped with at least one circuit element (5); the fan (7) includes a motor, and the motor drives the paddle and supply air to the air duct (43); and a control device capable of controlling the rotational speed of the motor according to the temperature in the air duct (43). Since the magnetic resonance imaging equipment monitors the temperature in the air duct, the temperature of the RF coil (3) can be obtained more realistically, so that an effective cooling operation can be taken.

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 Patents(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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