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Device for monitoring anesthesia depth based on auditory evoked signals

A technology of anesthesia depth and monitoring device, applied in diagnostic recording/measurement, medical science, sensor, etc., can solve problems such as not being able to perfectly match AEP waveform, achieve the effect of reducing training time and solving medical accidents

Inactive Publication Date: 2020-04-10
付晓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the present invention, through the design of the specific db4 wavelet base, the DWT transform based on the db4 wavelet base can better decompose the AEP signal, which provides an effective guarantee for the subsequent monitoring of the anesthesia state, and solves the problem of using db4 in the past. When wavelet decomposition, can not perfectly match the AEP waveform problem

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  • Device for monitoring anesthesia depth based on auditory evoked signals
  • Device for monitoring anesthesia depth based on auditory evoked signals
  • Device for monitoring anesthesia depth based on auditory evoked signals

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Embodiment Construction

[0016] Such as figure 1 Shown is a system block diagram of the auditory evoked potential-based anesthesia depth monitoring device of the present invention. It includes three main parts: auditory evoked potential measurement unit, signal processing unit, and display indication unit. The auditory evoked potential measurement unit is mainly used to measure the auditory evoked potential during anesthesia. It can be measured through plug-in earphones, speakers, bone conduction earphones, earmuffs, etc., or through electrode caps. After the patient is anesthetized, the auditory evoked potential is measured; during the measurement, electrodes are placed near the nerve center of the patient to pick up the auditory evoked potential. The signal measured by the auditory evoked potential measurement unit is transmitted to the signal processing unit, and the auditory evoked potential measurement unit and the signal processing unit can be integrated into a whole or a split type; when the s...

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Abstract

The invention relates to a device for monitoring anesthesia depth based on auditory evoked signals. The device comprises an auditory evoked potential measuring unit, a signal processing unit and a display indicating unit, the auditory evoked potential measuring unit is used for measuring auditory evoked potential in the anesthesia process; signals measured by the auditory evoked potential measuring unit are transmitted to the signal processing unit, and the auditory evoked potential measuring unit and the signal processing unit can be combined into a whole or separated. The signal processing unit processes the received auditory evoked potential signal to obtain anesthesia depth; the anesthesia depth obtained by the signal processing unit is transmitted to the display indicating unit, and the display indicating unit displays the current anesthesia depth of the patient and prompts measures which should be taken by medical staff at present.

Description

technical field [0001] The invention relates to the technical field of physiological signal monitoring devices, in particular to a device for monitoring the depth of anesthesia based on auditory evoked signals. Background technique [0002] Auditory evoked potential (AEP) refers to the bioelectrical activity that stimulates the auditory conduction pathway through the brainstem to the auditory cortex to the association cortex. AEP is often divided into three parts: brainstem auditory evoked potential (brainstem auditory evoked potential, BAEP), which appears 0-10ms after receiving the stimulus, mainly reflects the processing of the stimulus to the brainstem and the brainstem; middle latency pain evoked potential (MLAEP): appears 10-100ms after receiving the stimulus, mainly generated in the medial knee Stem and primary auditory cortex; long-latency auditory evoked potential (LLAEP), generated 100ms after receiving a stimulus, mainly reflects the neural activity of the prefron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0484A61B5/00
CPCA61B5/4821A61B5/7203A61B5/7225A61B5/726A61B5/7264A61B5/7271A61B5/38
Inventor 付晓张萍萍张继涛
Owner 付晓