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Portable magnetoencephalogram detection apparatus

A detection device and portable technology, applied in the field of portable magnetic brain detection devices, can solve problems such as brain magnetic signal detection devices that have not yet been seen in optical atomic magnetometers

Active Publication Date: 2016-11-09
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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Problems solved by technology

However, no brain magnetic signal detection device based on an optical atomic magnetometer has been seen so far.

Method used

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  • Portable magnetoencephalogram detection apparatus
  • Portable magnetoencephalogram detection apparatus
  • Portable magnetoencephalogram detection apparatus

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0036] like figure 1 As shown, the embodiment of the portable MEG detection device of the present invention includes a MEG measurement helmet 100 , an optical atomic magnetometer array, a drive system 103 , a signal detection system 104 and a signal storage system 105 . The optical atomic magnetometer array is embedded in the magnetic brain measurement helmet 100 , and the optical atomic magnetometer array is composed of 8 optical atomic magnetometers 101 a - 101 h, which are evenly distributed on the magnetic brain measurement helmet 100 . The input end of the optical atomic magnetometer array is connected to the output end of the driving system 103, the output end of the optical atomic magnetometer is connected to the input end of the signal detection system 104, and the first output end of the signal detection system 104 is connected to the ...

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Abstract

A portable magnetoencephalogram detection apparatus comprises a magnetoencephalogram measuring helmet (100), optical atom magnetometers (101a-101h), a drive system (103), a signal detection system (104) and a signal storage system (105); input ends of the optical atom magnetometers (101a-101h) are connected with an output end of the drive system (103), output ends of the optical atom magnetometers (101a-101h) are connected with an input end of the signal detection system (104), a first output end of the signal detection system (104) is connected with the signal storage system (105), and a second output end of the signal detection system (104) is connected with an input end of the drive system (103). The optical atom magnetometers (101a-101h) are embedded in the magnetoencephalogram measuring helmet (100) to acquire magnetoencephalogram signals. The drive system (103) maintains the optical atom magnetometers to normally operate. The signal detection system (104) is used for identifying output signals of the optical atom magnetometers, and the signal storage system (105) is used for storing signals.

Description

technical field [0001] The invention relates to a magnetic brain detection device, in particular to a portable magnetic brain detection device based on an optical atomic magnetometer. Background technique [0002] The electrical activity of neurons in the human brain can generate a magnetic field. Magnetoencephalography (MEG) is a technique that can non-invasively detect this magnetic field on the surface of the scalp. The magnetic brain signal will not be distorted when it passes through the scalp, skull and other anatomical structures, so the image is clear and easy to distinguish, and it has higher accuracy in the diagnosis of brain diseases. Because the magnetic field generated by brain neurons is extremely weak, only a few hundred fT (10 -15 T), the largest neuromagnetic signal such as epileptic spikes is only a few pT (10 -12 T), therefore must have a reliable magnetic field shielding system and a sensitive brain magnetic field measurement device. The existing magne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/04
CPCA61B2562/0223A61B2576/026A61B5/242
Inventor 张广浩霍小林向敬
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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