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Ultra-low field magnetic resonance imaging system

A magnetic resonance imaging, ultra-low field technology, applied in medical science, telemetry patient monitoring, sensors, etc., can solve the problems of long construction period and high cost, and achieve the effect of compact structure

Pending Publication Date: 2018-12-18
宁波穿山甲机电有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to isolate the magnetic resonance system from the interference of external electromagnetic fields, it is necessary to build a dedicated MRI radio frequency shielding room, which often requires a long construction period and high cost

Method used

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Embodiment Construction

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0042] Such as Figure 1~3 The ultra-low-field magnetic resonance imaging system shown includes a non-magnetic mobile cabinet 2 with rolling casters 1 on the lower part, the non-magnetic mobile cabinet 2 is a spliced ​​combination cabinet, and a magnetic resonance imaging system is installed inside the non-magnetic mobile cabinet The necessary power supply module, power amplifier module and imaging module; the magnet assembly is arranged on the top of the non-magnetic mobile cabinet, and the magnet assembly includes

[0043] A frame-shaped magnetically conductive frame 3 with a "mouth"-shaped cross section, the frame-shaped magnetically conductive frame 3 is formed by splicing an upper magnetically conductive sheet 31, a left magnetically conductive sheet 32, a lower magnetically conductive sheet 33, and a right magnetically conductive sheet 3...

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Abstract

The invention relates to an ultra-low field magnetic resonance imaging system, characterized in that the system comprises a non-magnetic moving cabinet body with rolling casters at the lower part, a radio frequency shielding device is arranged above the non-magnetic moving cabinet body, and the radio frequency shielding device comprises a frame-shaped magnetic conductive rack having a cross section in the shape of a square, upper and lower magnets symmetrically located on the upper and lower sides inside the frame-type magnetic inductive rack, an upper gradient coil and a lower gradient coil,and a transmitting coil and a receiving coil located between the upper gradient coil and the lower gradient coil; and also included are a front shield cover, a rear shield cover, and an openable shield cover, a drawing type bed plate is arranged above an inner shield cover, and the drawing type bed plate can be completely placed in a patient detection room. Compared with the prior art, the invention has the advantages that the whole magnetic resonance system is reduced onto the non-magnetic moving cabinet body, the whole radio frequency shielding device is compact in structure, with no need tobuild a large shielding room, and the system is suitable for early stage diagnosis of acute and super acute cerebral hemorrhage.

Description

technical field [0001] The invention relates to an ultra-low field magnetic resonance imaging system. Background technique [0002] Magnetic resonance imaging system is increasingly becoming an indispensable part of imaging diagnosis due to its characteristics of no ionizing radiation, high resolution and contrast, multi-parameters, and non-invasive imaging. [0003] There are two types of conventional magnetic resonance imaging systems according to the strength of the magnetic field. The first type is the high-field magnetic resonance imaging system. The high-field magnetic resonance imaging system here is usually a magnetic resonance imaging system with a magnetic field strength above 1.0T. The magnet generally adopts a superconducting magnet, such as the market Common 1.5T and 3.0T magnetic resonance imaging systems. The other category is the low-to-medium field magnetic resonance imaging system, which often refers to the magnetic resonance imaging system with a magnetic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055
CPCA61B5/0042A61B5/055A61B2562/18
Inventor 刘杰郭江黔周鑫彬唐志强
Owner 宁波穿山甲机电有限公司
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