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Double ear alternative stimulated brainstem auditory evoked potential(BAEP) tracing device

An auditory evoked potential and brainstem technology, applied in the field of medical devices, can solve the problems of patient fatigue, affecting detection accuracy, and long detection time, and achieve the effects of increasing repetition frequency, low cost and simple structure

Inactive Publication Date: 2006-07-12
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional single-ear detection method takes a long time to detect, which can easily cause patient fatigue and affect the detection accuracy, which can no longer meet the needs of actual operation

Method used

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  • Double ear alternative stimulated brainstem auditory evoked potential(BAEP) tracing device
  • Double ear alternative stimulated brainstem auditory evoked potential(BAEP) tracing device
  • Double ear alternative stimulated brainstem auditory evoked potential(BAEP) tracing device

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Embodiment Construction

[0015] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0016] The structural block diagram of the binaural stimulation brainstem auditory evoked potential tracing device of the present invention is as follows figure 1 As shown, it is connected and expanded by a computer, a trigger pulse generator and two single-ear test processing units in a certain way, mainly including: a computer, a trigger pulse generator, a pulse delayer, two pulse stimulation generators, and two pairs of electrodes on the left and right , two acoustic stimulation generators on the left and right, and two amplifiers, two A / D converters, and two arithmetic mean computers.

[0017] The computer is connected to the input terminal of the trigger pulse generator through the RS232 interface. The output terminal of the trigger pulse generator is divided into two channels, one of which is directly connected to the left acoustic ...

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PUM

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Abstract

A brainstem audition evoked potential description and record device stimulated by two ears alternatively, connected and expanded with computer, trigger generator and two-way single ear testing treating unit, the computer and trigger generator generate trigger pulse of 40ms interval and apply to the impulse stimulation in two way, and emit voice stimulation of certain form by voice stimulating generator. The two pair electrodes cross-equipped in lateral mastoid process and contra-lateral temple introduces the brainstem responding signal out, and delivers to computer for treatment after the signal being enlarged by magnifier and A / D conversion. The two-way detecting passage work with the same principle, but a pulse delayer is equipped between the trigger pulse generator and pulse stimulating generator in one way, which make the trigger pulse be delayed for 20ms. The invention alternatively stimulates through two-way signal the brainstem audition, and can detect the brainstem evoked potential of two ears simultaneously, solving the paradox between detecting time and accuracy, and cost is low and structure is simple.

Description

technical field [0001] The invention relates to a brainstem auditory evoked potential tracing device, in particular to a brainstem auditory evoked potential tracing device for alternate binaural stimulation with both accuracy and measurement efficiency, belonging to the technical field of medical devices. Background technique [0002] The brainstem response reflects the activity of corresponding sensory pathways and cortical neuron groups, so it has a very high accuracy for evaluating the hearing threshold of difficult diseases and the localization diagnosis of ear diseases and brainstem lesions, especially its peak latency in acoustic neuroma In terms of diagnosis, it provides an objective and reliable basis. Due to the interference of ECG, EEG, EMG and the external environment, 90% of the measurement signals elicited from the scalp are signal components of other neurons, and only 10% come from the auditory neuron system, that is, the signals are "submerged" in the strong ...

Claims

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Application Information

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IPC IPC(8): A61B5/0476A61B5/00A61N1/36
Inventor 万曼影师好智刘学军
Owner SHANGHAI JIAO TONG UNIV
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