High-precision multi-channel magnetoencephalogram system based on atom magnetometer

Abstract

The invention discloses a high-precision multi-channelmagnetoencephalogram system based on an atom magnetometer, the system comprises a sensing module, a data collection module, a software module and a shielding module, in the shielding module, when external magnetic noise is within a certain range, the sensing module detects a brain magnetic signal and transmits the brain magnetic signal to the data collection module, the data collection module is used for processing the signal data, then the processed data are transmitted to the software module, and finally the software module is used for analyzing the data to obtain a detection result. The hardware system and the software system are optimized and integrated, the system can be operated through simple keys, direct linkage with third-party software can be achieved, the new-generation magnetoencephalogram system can be practically applied, liquid nitrogen or liquid helium does not need to be adopted for refrigeration, and the intelligent magnetoencephalogram software and hardware system is good in system application flexibility, high in sensitivity, wearable and high in integration.

Description

technical field [0001] The invention belongs to the field of medical diagnosis and treatment systems, in particular to a high-precision multi-channel magnetoencephalogram system based on an atomic magnetometer. Background technique [0002] Magnetoencephalography (MEG) is a non-invasive neuroimaging technique that directly measures the magnetic fields generated by the human brain. After more than 40 years of development, magnetoencephalography has been widely used in the diagnosis and treatment of functional diseases such as epileptic focus location and brain function location before neurosurgery. Magnetoencephalography is also a non-invasive imaging technique for precise anatomical positioning of brain function, which is of irreplaceable value for minimally invasive precision surgery. In the field of neurosurgery, the concept of minimally invasive surgery that obtains the best therapeutic effect with the least damage and preserves neurological function to the greatest exte...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there is a magnetoencephalogram detection device, but there are still some essential deficiencies: a low-temperature refrigeration system is necessary, usually using liquid nitrogen or liquid helium refrigeration, and the system structure is complex; the detection sensitivity of the detection device is limited by the detection principle and system construction Complexity, can not be close to the brain, weak signal, unstable function; large device size, cannot be miniaturized, immovable and expensive to build

Although there is also a method of using an atomic magnetic sensor to construct a magnetoencephalogram instrument, please refer to the US patent for details, the patent publication number is US9113803B2, but the practical applicability of this technology is poor and the detection information is also limited

Under the trend of clinical medical development hotspots, although portable magnetoencephalography technology has been developed, it lacks a technical design that can be promoted in the market. This field urgently needs a practical and does not need to use liquid nitrogen or liquid helium refrigeration. It is a highly integrated new generation of intelligent magnetoencephalogram software and hardware system with high sensitivity and flexible application, which can be directly worn on the head and can be directly linked with third-party software for information collection.

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