Closed-loop transcranial magnetoacoustic stimulation device

Abstract

The invention relates to a closed-loop transcranial magnetoacoustic stimulation device, which comprises a computer, a signal generator, a power amplifier, a focused ultrasonic transducer, a microfilament electrode array, a differential amplifier, a signal acquisition card and magnets, and is characterized in that the computer is communicated and connected with the signal generator through a data line, the output end of the signal generator is connected with the input end of the power amplifier through a data line, the output end of the power amplifier is connected with a signal input end of the ultrasonic transducer through a data line, the input end of the microfilament electrode array acquires cranial nerve electric signals, the output end of the microfilament electrode array is connected with the input end of the differential amplifier through a data line, the output end of the differential amplifier is connected with an A / D interface of the input end of the signal acquisition card through a data line, and the output end of the signal acquisition card is connected with the computer through a data line. A test sample is placed below the ultrasonic transducer, and two sides of the test sample are provided with the magnets respectively. The closed-loop transcranial magnetoacoustic stimulation device has the characteristics of high spatial resolution, convenient operation, accurate stimulation, no damage and the like.

Description

technical field [0001] The invention relates to a medical non-destructive testing technology, in particular to a closed-loop transcranial magnetic-acoustic stimulation device. Background technique [0002] Transcranial ultrasound stimulation is a newly developed brain function stimulation technology, which transmits ultrasound energy through the intact skull and can non-invasively modulate the neural activity of the brain. Transcranial ultrasound stimulation technology is a brain regulation technology that uses low-intensity focused ultrasound to act on brain tissue to produce biomechanical effects on neurons and affect nerve electrical activity, thereby causing a series of physiological and biochemical reactions. It is known that ultrasound has good penetrability, it can penetrate bone and soft tissue and even metal structure, so ultrasound has a wide range of applications in medical and industrial. [0003] Currently, medicinal chemotherapy for the nervous system has cert...

AI Technical Summary

Problems solved by technology

Such as deep brain stimulation, although the stimulation is highly targeted, it requires electrodes to be implanted in the brain, and the operation has a greater risk

Although the transcranial magnetic stimulation technology can be non-invasive and improve safety, it has problems such as insufficient stimulation depth and low spatial resolution.

[0004] In addition, most of the devices used to treat diseases of the brain and nervous system in the prior art are open-loop devices, which cannot automatically predict the phase of the spike rhythm in the EEG signal; nor can they send out stimulation at the desired time according to the needs of the user. signal, unable to meet the needs of modern medical care

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