Quantitative monitoring index equipment for reviving patient after general Anesthesia operation

A technology for surgery and patients, applied in the direction of electroencephalography, bioelectrical signal measurement, diagnostic recording/measurement, etc., to improve postoperative life quality, reduce complications, and eliminate adverse reactions

Inactive Publication Date: 2008-10-01
张炳熙 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a quantitative monitoring index device known by patients under general anesthesia in surgery, to solve the technical problem of quantita

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  • Quantitative monitoring index equipment for reviving patient after general Anesthesia operation
  • Quantitative monitoring index equipment for reviving patient after general Anesthesia operation
  • Quantitative monitoring index equipment for reviving patient after general Anesthesia operation

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Embodiment Construction

[0013] The present invention is a module or device that quantitatively reflects the quantitative monitoring index known by the patient in the process of general anesthesia by using the method of 40Hz auditory steady-state evoked potential. It is composed of a CPU computing unit, a brain evoked potential amplifier, and applied to The auditory organ of the human body produces a sound stimulation circuit (audio control), a corresponding probe, a display unit, and a corresponding module processing software and equipment system software. Using the brain-evoked potential signal monitored by the amplifier module, through wavelet transform calculation and waveform recognition algorithm processing, a quantitative index reflecting the real-time conscious state of the patient during the surgical operation is obtained: E-40 index. The E-40 index is a dimensionless value quantified from 0 to 100, which represents the quantitative monitoring value of whether the human body is aware of the op...

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Abstract

The invention discloses a device for quantitative monitoring indicators of a patient with awareness during the general anesthesia operation, which comprises: an EEG signal surface electrode, a filter circuit, an EEG amplification circuit, a brain evoked potential amplifier, an analog-to-digital converter, a computer for calculating the brain 40Hz auditory evoked steady state response index and a sound stimulating circuit. Two brain evoked potential signals and an EEG signal curve which are generated by the computer are stored in a data cache; the sound stimulating circuit comprises: a 40Hz sound modulation circuit and a sound amplification circuit; the computer is synchronous with four sound stimulus, two brain evoked and EEG digital signals are obtained every 100ms and then the data cache is cleared. The device has the following advantages and positive effects: the 40Hz auditory steady state technology is different from other auditory evoked potentials, the major advantage thereof is that the rhythm of the stimulus is synchronous with the position of the wave peak of auditory middle latency, thus forming the resonance effect, improving the signal intensity and regularity, allowing the extraction of the evoked potential to be easier and strengthening the probability of the clinical practical application of the evoked potential technology.

Description

technical field [0001] The invention relates to a medical device for monitoring the indicators known in the operation during the general anesthesia process of the operation, and the patient is under the stimulation state of the operation. Background technique [0002] Using evoked potential technology to study the degree of brain sedation is an effective means. It is a hot method to study the state of brain function in the world in recent years. The evoked potential is the potential change of the cerebral cortex, some of which are expressed as the result of processing the information obtained by the receiving organ, reflecting the level of consciousness of the person. By extracting the evoked potential signal and observing its changes, we can study the current level of consciousness of a person, especially for the level of consciousness of a person under anesthesia. The evoked potential is a good way to objectively reflect the degree of sedation. [0003] Various nocicepti...

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Application Information

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IPC IPC(8): A61B5/0484
CPCA61B5/04845A61B5/4821A61B5/38
Inventor 张炳熙吴一兵
Owner 张炳熙
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