Magnetic stimulation current real-time monitoring device and monitoring method based on magneto-acoustic coupling effect

Abstract

The invention discloses a magnetic stimulation current real-time monitoring device and a monitoring method based on a magneto-acoustic coupling effect. The magnetic stimulation current real-time monitoring device comprises an N pole magnet and an S pole magnet, wherein a microphone is arranged beside a static magnetic field, and in addition, an amplifier, a filter, an acquisition processor and a display, which are sequentially connected in series, are arranged beside the static magnetic field; a signal input end of the amplifier is connected to a signal output end of the microphone; a triggering signal output end of the acquisition processor is connected to a signal input end of a magnetic stimulator; and a signal output end of the magnetic stimulator is connected to a coil. An output signal of the magnetic stimulator, on a time axis, is composed of marking pulse and stimulating pulse; the marking pulse is achieved by a high-frequency pulse, and the central frequency of marking pulse width is consistent with a measuring frequency band of the microphone; triggering signal output of the acquisition processor is synchronous with magnetic stimulating signal output of the magnetic stimulator; and an acquisition triggering moment of the acquisition processor is identical to a marking pulse starting moment. The magnetic stimulation current real-time monitoring device and the monitoring method provided by the invention play an important role in monitoring tissue current distribution characteristics of electromagnetic stimulation, implementing positioned stimulation in specific nerve areas and estimating and monitoring a stimulation effect.

Description

technical field [0001] The invention relates to a real-time monitoring device for magnetic stimulation current. In particular, it relates to a real-time monitoring device and method for magnetic stimulation current based on magneto-acoustic coupling effect. Background technique [0002] Electrophysiology plays an important role in the study of the structure and function of the nervous system. In particular, magnetic stimulation, as a means of regulating nerve excitability, has been widely used in the diagnosis and treatment of clinical diseases, such as the regulation of neurological diseases, the treatment of depression, obsessive-compulsive disorder and epilepsy. The commonly used magnetic stimulation technology mainly uses a magnetic stimulation coil to generate an induced magnetic field, which forms an induced electric field in the tissue, and finally forms an induced current. When the current is greater than the nerve excitation threshold, nerve excitation is generate...

AI Technical Summary

Problems solved by technology

[0003] However, the distribution of current in tissues is not clear, and there is no effective means for high-resolution monitoring and imaging of current distribution in tissues, and the localization of specific nerves is still in the research stage

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