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Magnetoencephalography device and method of using the same

一种检测装置、磁场的技术，应用在测量装置、磁场的大小/方向、采用超导器件进行磁场测量等方向，能够解决花费费用、不能安装脑磁场检测装置等问题

Inactive Publication Date: 2006-02-15
NAT INST OF INFORMATION & COMM TECH
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  • Abstract
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Problems solved by technology

[0010] However, when installing the brain magnetic field detection device, it is absolutely necessary to completely block the vibration from the ground, so a very solid foundation must be ensured, and if the surrounding vibration environment is not ideal, the brain magnetic field detection device cannot be installed in existing buildings
In addition, there is also the problem that attention must be paid to the vibration environment when constructing a new building, and unnecessary expenses must be spent on its foundation construction.

Method used

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  • Magnetoencephalography device and method of using the same
  • Magnetoencephalography device and method of using the same
  • Magnetoencephalography device and method of using the same

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Embodiment Construction

[0026] refer to figure 1 , if referenced Figure 5 As explained, the brain magnetic field detection device 1 includes: a first enclosure 111 of a high-temperature superconductor and a second enclosure 112 of a high-permeability magnetic body are accommodated in a hollow cylindrical vacuum thermal insulation structure 11 in a double wall; The circulating cooling device 12 that circulates the cooling medium in the space of the double wall of the vacuum thermal insulation structure 11; the ultra-low temperature container 13 fixed in the cylindrical vacuum thermal insulation structure 11; the top of the vacuum thermal insulation structure 11 is fitted The top enclosure 14.

[0027] The below of the ultra-low temperature container 13 defines a head accommodation area 131 surrounding the subject's head, and the SQUID magnetic sensor 15 is arranged around the head accommodation area inside the ultra-low temperature container 13, and the magnetic sensor 15 is placed inside the ultra-...

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Abstract

It is possible to provide a magnetoencephalography device having a low noise and a high sensitivity. When installing on a floor the magnetoencephalography device using a high-temperature superconductor magnetic shield device, anti-vibration means is provided to eliminate generation of a noise and to eliminate relative movement between the high-temperature superconductor magnetic shield and an SQUID fluxmeter. Even if an inevitable small vibration is caused, the fluctuation component detected by the SQUID fluxmeter is not generated from static magnetism trapped.

Description

technical field [0001] The invention relates to a brain magnetic field detection device and a method for detecting the weak magnetic field equivalent to about one-hundredth of the earth's magnetic field generated by the neural current flowing in the brain nerve when the brain is active. [0002] The above weak magnetic field can be detected by submerging SQUID (Superconducting Quantum Interference Device) in liquid helium and working as a magnetic brain sensor at ultra-low temperature. Thereby, it is possible to observe the state of the brain neural network, to check the activities of the brain (memory, learning, attention, etc.), and to diagnose brain disorders (attention deficit, autism, learning disabilities, schizophrenia, etc.). Background technique [0003] The SQUID is immersed in liquid helium and used as a brain magnetic field detection device at an ultra-low temperature, which is developed and implemented by the inventor. [0004] refer to Figure 5 . This existi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/05G01R33/035A61B5/04
CPCG01R33/0358A61B5/04008A61B5/245
Inventor 松井敏明太田浩
Owner NAT INST OF INFORMATION & COMM TECH
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