Electric brain stimulator based on serial port output digital trigger signals and implementation method thereof

A technology of trigger signal and digital trigger, which is applied in the field of medical devices, can solve problems such as failure to achieve synchronous trigger, insufficient correlation between playback objects and cycles, and unsatisfactory stimulation effects of brain electrical stimulators, so as to achieve the effect of improving accuracy

Inactive Publication Date: 2013-09-11
THE THIRD AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIV OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, parallel interface is still used for data transmission, and the relationship between playback objects and loops is not enough, and synchronous triggering is not realized, which makes the stimulation effect of brain electrical stimulators unsatisfactory, and there are also restrictions on the selection of computers.

Method used

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  • Electric brain stimulator based on serial port output digital trigger signals and implementation method thereof
  • Electric brain stimulator based on serial port output digital trigger signals and implementation method thereof
  • Electric brain stimulator based on serial port output digital trigger signals and implementation method thereof

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Embodiment Construction

[0018] figure 1 It is a structural block diagram of the whole of the present invention. see figure 1 , The electrical brain stimulator of the present invention mainly includes: a brain electrical stimulation control part composed of a designer and a player and a communication device. As a tool for designing the control part of the brain electrical stimulator, the designer provides the user with the process of designing the control part of the brain electrical stimulator; as a computer display tool for the brain electrical stimulator, the player is used to play the pictures and sound stimulation required by the user. Wait. The serial port communication device is used as a tool for communication and interaction between the computer and the EEG (such as the Neuroscan EEG), and is used for the computer to send a digital trigger signal synchronized with the stimulation to the EEG.

[0019] figure 2 The serial communication device of the present invention includes: USB conversi...

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Abstract

The invention discloses an electric brain stimulator based on a serial port and an implementation method thereof and belongs to the field of medical equipment. The electric brain stimulator based on the serial port comprises an electric brain stimulation control section and a communication device, wherein the electric brain stimulation control section comprises a designer and a player; the designer is a tool for designing processes of the electric brain stimulation control section and provides processes for a user to voluntarily design the electric brain stimulation control section; the player serves as a computer display tool of the electric brain stimulator and is used for playing pictures, sound stimulation and the like; and the communication device serves as a tool for communication interaction of a computer and an electroencephalograph (electroencephalogram acquisition system) and is used for the computer to send digital trigger signals synchronous with stimulation to the electroencephalograph.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a brain electric stimulator related to event-related potential detection. Background technique [0002] In recent years, with the rapid development of cognitive neuroscience research, ERP has attracted more and more attention from the brain science community. ERP (Event-Related Potential) refers to any external stimulus that acts on the sensory system or a certain part of the brain, and when the stimulus is given or withdrawn, the potential change in the brain area is caused. Currently, EEG ERP stimulators usually use a parallel port of a computer to output a digital trigger (trigger) signal, such as the Eprime and STIM2 stimulation systems. The STIM 2 stimulus generation system is a set of programmable brain electrical stimulator software provided by Neuroscan for a fee. In addition, in the research of brain-computer interface, when visual, auditory or somatosensory st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/36
Inventor 何庆华龚春河尹军冯正权吴宝明朱新建高丹丹毕玉田
Owner THE THIRD AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIV OF PLA
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