Handheld cortex egersimeter and cortex electrostimulation

Abstract

The invention discloses a handheld cortex egersimeter and a cortex electrostimulation. In the cortex egersimeter, a parameter setting circuit and a parameter display circuit are connected with a master control chip, a control end of a bipolar voltage controlled constant current source circuit is connected with a digital-to-analog conversion output port of the master control chip, and an output end of the bipolar voltage controlled constant current source circuit is connected with one end of a stimulating electrode; an input end of a current-to-voltage conversion circuit is connected with the other end of the stimulating electrode, and an output end of the current-to-voltage conversion circuit is connected with an analog-to-digital conversion input port of the master control chip; a real pulse intensity display circuit is connected with the master control chip; an input end of a bipolar voltage generation circuit is connected with another digital-to-analog conversion output port of themaster control chip, and an output end of the bipolar voltage generation circuit is connected with the bipolar voltage controlled constant current source circuit. The method can be used for applying bidirectional pulse simulation with specific frequency, pulse width and current to cortex. The invention has low cost, is simple for operation and does not need the assistance of a computer; in addition, the cortex egersimeter has high safety coefficient and can improve the postoperative life quality of patients with functional region pathological changes.

Description

technical field [0001] The invention belongs to the field of medical electronic equipment, in particular to a hand-held cortical electrical stimulator for intraoperative brain function positioning. Background technique [0002] Since the beginning of the 21st century, the research on the quality of life of patients after neurosurgery has gradually increased, which is the result of the progress of society, the development of science and people's increasing demands on life. People have higher and higher requirements for the quality of life, not only to be able to take care of themselves, but also to return to work to achieve physical and mental health. [0003] Lesions in functional areas of the brain mainly refer to tumors, vascular malformations, and epileptic foci located in the motor, sensory, and language areas. The incidence rate of the large-scale investigation report organized by the World Health Organization in my country alone is 8‰ of epilepsy. , there are more than...

AI Technical Summary

Problems solved by technology

[0006] At present, there is no hand-held cortical and subcortical direct electrical stimulator with independent intellectual property rights in clinical application in China. The only domestic instrument specially used for cortical electrical stimulation is the ORISIS cortical electrical stimulator produced by Inomed in Germany. Head-up prices are relatively expensive, and computer assistance is required to adjust parameters

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