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Method and apparatus for cooling magnetic resonance imaging system

A magnetic resonance imaging and cooling device technology, applied in magnetic resonance measurement, measuring devices, measuring magnetic variables, etc., can solve problems such as high energy consumption and cost, low cooling efficiency, complicated equipment, etc., to reduce energy consumption and cost, High cooling efficiency and simple equipment

Active Publication Date: 2009-08-05
西门子数字医疗科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because the above-mentioned cooling method uses water cooling, its cooling efficiency is relatively low; and the leakage of water in the cooling system may cause problems such as short circuit, and its safety is relatively low; Coils and radio frequency consoles adopt integrally designed cooling pipes, and the method of separately cooling each component is complicated and inefficient, and the energy consumption and cost are also high

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  • Method and apparatus for cooling magnetic resonance imaging system
  • Method and apparatus for cooling magnetic resonance imaging system
  • Method and apparatus for cooling magnetic resonance imaging system

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A preferred embodiment of the present invention proposes a cooling device for a magnetic resonance imaging system, the magnetic resonance imaging system includes a magnet 6, a gradient coil 7 and a radio frequency console 8, the cooling device includes: a A compressor 13 that compresses the cooling helium as the coolant; a cold head 5 positioned on the magnet 6, which can cool the magnet 6; a gradient coil heat exchange component positioned on the gradient coil 7 (in the figure not shown), the gradient coil 7 can be cooled by using the gradient coil heat exchanging part; a radio frequency console heat exchanging part (not shown) on the radio frequency console 8 can utilize the radio frequency console heat exchanging part The radio frequency console 8 can be cooled. The air outlet of the compressor 13 is connected to the inlet of the cold head 5 through the air supply channel 1, the outlet of the cold head 5 is connected to the inlet of the gradient coil heat exchange pa...

Embodiment 2

[0038] In this embodiment, helium is also used as a coolant to cool the magnetic imaging system. Only the differences from Embodiment 1 will be described in detail below.

[0039] According to a cooling device for a magnetic resonance imaging system according to this embodiment, the magnetic resonance imaging system includes a magnet 6, a gradient coil 7 and a radio frequency console 8, and the cooling device includes: a A compressor 13 for cooling helium to compress; a cold head 5 positioned on the magnet 6; a gradient coil heat exchange component (not shown) positioned on the gradient coil 7; a radio frequency control panel positioned on the radio frequency console 8 stage heat exchange components (not shown in the figure). The air outlet of the compressor 13 is connected to the inlet of the cold head 5, the outlet of the cold head 5 is connected to the inlet of the gradient coil heat exchange part and the inlet of the radio frequency console heat exchange part, the outlet ...

Embodiment 3

[0050] In this embodiment, helium is also used as a coolant to cool the magnetic imaging system. Only the differences from Embodiment 1 and Embodiment 2 will be described in detail below.

[0051] and figure 1 In contrast, the cooling device of Embodiment 3 also includes a bypass pipeline, which is connected between the air return port of the compressor (13) and the outlet of the gradient coil heat exchange component, so that the output from the gradient coil heat exchange component A part of the cooled helium is directly returned to the compressor 13.

[0052] in addition, image 3 The cooling device shown can also include a bypass valve 14 connected to the bypass pipeline, that is, between the bypass pipeline and the return air port of the compressor (13), and the bypass valve 14 is used to adjust the gradient coil (7) and the cooling pressure of the RF console (8).

[0053] According to the cooling method of this embodiment, the cooling helium gas is firstly compressed ...

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Abstract

The invention provides a cooling method and a device of a magnetic resonance imaging system. The magnetic resonance imaging system comprises a magnet, a gradient coil and an RF control console. The cooling method comprises the steps as follows: a compressor compresses cooling helium gas used as refrigerant; the compressed and cooled helium gas cools the magnet and further cools the gradient coil and the RF control console; and the cooled helium gas returns to the compressor so as to cool the system again after being compressed. Due to the adoption of cooling helium gas as the refrigerant, the invention completely overcomes the defects caused by the adoption of a water cooling system, and has the advantages of high cooling efficiency and high safety coefficient. In addition, the technical scheme of the invention adopts an integrally designed cooling pipeline and cools the magnet, the gradient coil and the RF control console through uniform cooling equipment, therefore, the design is more flexible, the equipment has simple structure and high efficiency, and the energy consumption and the cost are reduced simultaneously.

Description

technical field [0001] The invention relates to a cooling method and device for a magnetic resonance imaging (MRI) system, in particular to a cooling method and device for a gradient coil and a radio frequency console (RFIS) in the magnetic resonance system. Background technique [0002] Magnetic resonance imaging systems are widely used in medicine, and generally include a magnet that generates a stable basic magnetic field, a gradient coil that generates a gradient field that is quickly switched on and off, and a radio frequency console. The magnet and the gradient coil are generally designed as concentrically arranged tubes, and the patient or object to be examined by magnetic resonance imaging is placed in the lumen of the above-mentioned tube-shaped assembly. In addition, the magnetic resonance system also includes a high-frequency device. In order to excite the magnetic resonance signal, the device applies the high-frequency signal to the object under inspection and re...

Claims

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Application Information

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IPC IPC(8): G01R33/34G01R33/385A61B5/055
CPCG01R33/3856
Inventor 潘怀宇余兴恩方志春
Owner 西门子数字医疗科技(上海)有限公司