Heart magnetic field simulation system based on Helmholtz coil array

A Helmholtz coil and analog system technology, applied in the field of biomedicine, can solve the problems of bulky instruments and expensive instrument maintenance costs, and achieve the effect of low noise impact

Active Publication Date: 2021-10-22
BEIHANG UNIV
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  • Application Information

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Problems solved by technology

The SQUID magnetometer needs to work in a low-temperature environment when it is used, and then cooled by liquid

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  • Heart magnetic field simulation system based on Helmholtz coil array
  • Heart magnetic field simulation system based on Helmholtz coil array
  • Heart magnetic field simulation system based on Helmholtz coil array

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Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] The invention provides a system for simulating the magnetic field of the heart based on a Helmholtz coil array, which is convenient for the probe calibration of the SERF atomic magnetometer magnetometer, verifies the integrity of the MCG signal, and checks the diagnosis of the disease of the SERF atomic magnetometer magnetometer. accuracy. At the same time, when the SERF atomic magnetometer is being studied, the use of the present invention also avoids the problem that the human body needs repeated experiments.

[0036] Such as figure 1 As shown, a system structure diagram of a cardiac magnetic field simulation system based on a Helmholtz coil array is given. The system mainly includes: a magnetic shielding barrel (room) 1, a Helmholtz coil array 2, a low-noise programmable source 3. The Helmholtz coil array 2 is placed inside the magnetic shielding barrel (...

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Abstract

The invention relates to a heart magnetic field simulation system based on a Helmholtz coil array. The system mainly comprises a magnetic shielding barrel (room), a low-noise program control current source and the Helmholtz coil array. The magnetic shielding barrel (room) is used for shielding an earth magnetic field and other external magnetic fields and providing working conditions for the heart magnetic field generated by measurement of the atom magnetometer, the low-noise program-controlled current source is used for generating current needed for simulating the heart magnetic field, and meanwhile the program-controlled current source has the advantage of facilitating simulation of a dynamic signal system. The Helmholtz coil array is used for generating a heart magnetic field in the normal direction of the thoracic cavity surface in magnetocardiography measurement. The system provided by the invention can generate the normal cardiac magnetic field of the thoracic cavity surface, is applied to research in the medical field, and facilitates simulation of the cardiac magnetic field of a patient and calibration of an atom magnetometer probe.

Description

technical field [0001] The invention belongs to the field of biomedicine and relates to a cardiac magnetic field simulation system based on a Helmholtz coil array. Background technique [0002] The cardiac magnetic field of the human body contains a lot of bio-electrophysiological and pathological information. Magnetocardiography (MCG) is a completely non-contact, non-invasive passive measurement method of the cardiac magnetic field. Because magnetic permeability does not vary much in various parts of the body, the resolution of a magnetocardiogram is higher than that of a traditional electrocardiogram (ECG). Magnetocardiography has extremely high exploration potential and broad application prospects in the fields of medical treatment and life sciences. It is widely used in the diagnosis of arrhythmia, myocardial ischemia, and positioning of atrial fibrillation ablation. [0003] The magnetocardiometer used to measure the magnetocardiogram does not produce radiation and doe...

Claims

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Application Information

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IPC IPC(8): A61B5/243G01R33/34
CPCA61B5/243G01R33/34
Inventor 马辛窦帅曹一荻李君儒张祎琛
Owner BEIHANG UNIV
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