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Anesthesia accuracy monitoring instrument and method

A technology of depth of anesthesia and instruments, which is applied in the field of medical devices, can solve the problems that the depth of consciousness monitor is not widely used and is not very useful, and achieve the effect of being easy to wake up at any time, reducing injuries, and preventing excessive anesthesia

Active Publication Date: 2017-10-10
深圳市威浩康医疗器械有限公司
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Problems solved by technology

From this point of view, the past consciousness index has given a ruler, but to determine a relative value, another parameter must be matched. Only the consciousness index monitoring is really not very useful in the process of monitoring the depth of anesthesia. Therefore, the depth of consciousness monitor not widely used

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  • Anesthesia accuracy monitoring instrument and method
  • Anesthesia accuracy monitoring instrument and method
  • Anesthesia accuracy monitoring instrument and method

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Embodiment Construction

[0042] refer to figure 1 and figure 2 , the anesthesia precision monitoring method provided by the present invention, comprises the following steps:

[0043] Step 1, the original EEG signal is extracted by the depth of anesthesia module 13;

[0044] Step 2, using fast Fourier theory to analyze the energy parameters of four different frequency bands of the original EEG signal spectrum, the energy parameters of the four different frequency bands are as follows,

[0045] Theta=ln(E 4-8Hz / E 1-44Hz ),

[0046] Alpha=ln(E 9-13Hz / E 1-44Hz ),

[0047] BD1122=ln(E 11-22Hz / E 1-44Hz ),

[0048] BD3344=ln(E 33-44Hz / E 1-44Hz );

[0049] Step 3, input the above four energy parameters of the same frequency band into the fuzzy model;

[0050] Step 4, correct the output Fuzzy of the fuzzy model according to the burst suppression ratio BSR output , the calculation formula of damage sensitivity index is as follows;

[0051]

[0052] Step 5: Use the nociceptive index combi...

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Abstract

The invention particularly relates to an instrument and a method for monitoring anesthesia precision. The method includes steps of firstly, extracting original electroencephalogram by the aid of an anesthesia depth module; secondly, operationally analyzing four different frequency band energy parameters of frequency spectra of the original electroencephalogram by the aid of fast Fourier theories; thirdly, inputting the four frequency band energy parameters into fuzzy models; fourthly, correcting output Fuzzyouptut of the fuzzy models according to burst suppression ratios BSR; fifthly, determining consciousness loss critical points of anesthesia patients by the aid of injury sensitive indexes and consciousness indexes and controlling the dosage of sedative drugs. A calculation formula for the injury sensitive indexes is shown. The instrument and the method have the advantages that the injury sensitive indexes are combined with the consciousness indexes, so that the consciousness loss critical points of the anesthesia patients can be determined, the dosage of the sedative drugs can be controlled by the aid of the different consciousness indexes according to the different patients in anesthesia periods after the consciousness loss critical points of the patients are measured, and accurate anesthesia can be implemented.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a monitoring instrument and method. Background technique [0002] Whether the depth of anesthesia is appropriate in surgical anesthesia refers to whether the dosage of various anesthetics is appropriate for the patient, and the control of the dosage of various anesthetics and the selection of anesthetics during the surgical induction period are based on the patient's physique, weight, age, physical The dosage of anesthesia drugs during the maintenance period of the operation is determined according to how much the vital sign parameters exceed the normal range. [0003] In the past, in the operation process, medication during anesthesia induction and anesthesia maintenance mainly relied on the experience of anesthesiologists, and experience cannot be measured by standards. This brings up three questions: [0004] 1. During the induction period of surgery, it is not correct to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/0476A61B5/0205A61B5/145A61B5/01A61B5/00
Inventor 卞汉道于布为
Owner 深圳市威浩康医疗器械有限公司
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