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Open type superconducting MRI magnet

An open, superconducting technology, applied in the measurement of magnetic variables, medical science, measuring devices, etc., can solve the problem of unable to restore the pain posture, affect the scanning diagnosis effect, etc., to solve the problem of direction asymmetry, improve the scanning diagnosis effect, the effect of reducing the transverse magnetic field

Active Publication Date: 2010-01-27
SHENZHEN ANKE HIGH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As for superconducting MRI magnets, the air core solenoid superconducting magnet is still the main one at present, and the subject to be tested has to drill into the closed solenoid magnet for scanning, which will cause the tester to feel depressed, and because the scanning When requiring the examinee to lie flat on the scanning bed, it is impossible to restore the posture of the disease in some parts, which will affect the scanning diagnosis effect

Method used

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  • Open type superconducting MRI magnet
  • Open type superconducting MRI magnet
  • Open type superconducting MRI magnet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1, the magnetically conductive support arms 401 / 411 of the double magnetically conductive brackets 40 and 41 are V-shaped, and the base 402 / 412 is inverted V-shaped. The overall structure of the magnetically conductive bracket is as follows figure 1 , 2 In the shown X-shaped magnetically conductive support, two support beams 6 are respectively connected to the V-shaped arms of the double magnetically conductive support to form two magnetic circuits. Due to the above structure, from figure 1 It can be seen that the top and front and rear parts of the scanning magnetic field space where the scanning couch is placed are unobstructed, and the scanning couch can enter and exit from the front and rear parts of the scanning magnetic field, and the scanning couch can also be used as Figure 4 As shown, move upwards in the vertical direction to the ground, or let the subject stand or sit on the scanning bed to receive the MRI scan, and restore the posture when suffer...

Embodiment 2

[0024] In the second embodiment, the magnetically conductive support arm of the double magnetically conductive support is V-shaped, and the two support beams are connected to the V-shaped support arm to form a magnetic circuit; the difference from the X-shaped support is that the base of the support is a pier type, and the guide The magnetic bracket constitutes a Y-shaped magnetically conductive bracket as a whole. The structure of the Y-shaped bracket is simple, and the base can be replaced by several pillars.

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Abstract

An open superconducting magnetic body for MRI is composed of two magnetically conductive supporting frames, at least one magnetically conductive beam between said two supporting frames to form a magnetic loop, two vertical containers of superconductor coil, which are separated from each other and vertically and oppositely arranged to form a magnetic scanning space, and two magnetically conductive iron cores respectively passing one said container and fixed to one said supporting frame.

Description

technical field [0001] The invention relates to a superconducting magnet, in particular to an open-type superconducting magnet. An MRI device adopting the superconducting magnet will not cause oppression to a tester. Background technique [0002] For magnets of magnetic resonance imaging systems (referred to as MRI), a more open design has been leading the development trend of MRI magnets today. In 1994, the German Siemens Company invented the open-type normally conducting electromagnetic type and the permanent magnet type "C" type magnet. Rare earth permanent magnets have produced an MRI magnet with double Y-shaped frames, which not only eliminates the sense of depression of the subject, but also allows the subject to scan while standing, and the MRI device thus produced has been promoted in the market. However, since the permanent magnet needs to use a large amount of rare earth permanent magnet materials, and increasing the scanning space will greatly increase the cost o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/055G01R33/3815
Inventor 韩跃张超骥陈浩树李若兰任瑛杨欢胡金刚刘艳江汪汀耿俊彦王金淮何勇韩劼
Owner SHENZHEN ANKE HIGH TECH CO LTD