Self-reference, self-correlation and self-adaptive interference balancing method of evoked potential single extracted

A technology of induced potential and interference cancellation, applied in the field of medical equipment technology and biomedical engineering, it can solve the problems of changes, can not meet the needs of modern medical development, and the accuracy of results is not high, and achieve the effect of precise indicators
CN1954772AInactive Publication Date: 2007-05-02CHONGQING MEDICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHONGQING MEDICAL UNIVERSITY
Publication Date
2007-05-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

A self-reference, self-correlative and self-adaptive method for canceling the interference in extracting the evoked potential (EP) includes such steps as using a single electrode to take the self-reference signals for a long time, inputting the self-reference signals and comprehensive signals to the amplifier of electrobiologic examine system, amplifying, A / D conversion to obtain digital signals, and processing by special software (including self-reference analysis, calculating cancel factor W and canceling interference) to obtain EP, and calculating EP parameters.
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Description

technical field

[0001] The invention relates to a medical equipment technology and a biomedical engineering technology, and especially designs a self-reference autocorrelation self-adaptive interference cancellation method for a single extraction of evoked potentials. Background technique

[0002] Evoked potential (EP: Evoked potential) is also called evoked brain potential (EBP: Evoked brainpotential), which is relative to spontaneous brain potential (SBP: Spontaneous brain potential). Evoked potentials include: (1) somatosensory evoked potentials, (2) visual evoked potentials, (3) auditory evoked potentials, (4) cognitive potentials, (5) olfactory evoked potentials, and (6) taste evoked potentials. Evoked potentials can be used to help diagnose sensory (visual, auditory, and somatosensory, etc.) system disorders, and to study development and aging. Studies have pointed out that before histological changes, patients with dementia (such as AD: Alzheimer's disease) have EP c...

Claims

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