Intelligent lead switching method and device based on respiration parameters

A technology of breathing parameters and leads, applied in the field of biomedical signal processing, can solve the problems of false triggering of physiological or technical alarms, weak amplitude of breathing signals, and exceeding the display range of the screen, saving hardware channels and costs, and facilitating observation and monitoring. Analyze and reduce the effect of false alarm probability

Active Publication Date: 2016-02-03
EDAN INSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, when the monitors on the market use the impedance method to measure respiratory parameters, it is necessary to manually set the measurement lead method first, and then perform the measurement, so that once the lead is selected, unless the lead is manually changed next time , otherwise it will always use this fixed lead for measurement, but in some special cases, for example, when the signal of the selected lead is greatly disturbed and the waveform quality is poor, it may lead to incorrect calculation of respiration rate and Falsely triggering some physiological or technical alarms will bring troubles to medical staff and patients. Under some large-scale interference, it may also cause the signal to cross the border and exceed the display range of the screen; In some cases, the amplitude of the real respiratory signal is small. For example, if the patient adopts abdominal respiration, if lead I is selected as the lead for respiration measurement at this time, the patient's chest rise and fall changes little, and the measured value of lead I The respiratory signal amplitude may be very weak, which is very likely to trigger a false alarm of suffocation. Clinically, especially at night, if the respiratory signal on a selected lead is relatively weak after the patient enters a sleep state, it will cause serious harm to the patient and medical staff. great trouble and inconvenience

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  • Intelligent lead switching method and device based on respiration parameters
  • Intelligent lead switching method and device based on respiration parameters
  • Intelligent lead switching method and device based on respiration parameters

Examples

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Effect test

Embodiment 1

[0034] Such as figure 1 As shown, this example provides a method for intelligent lead switching based on breathing parameters, including the following steps:

[0035] Step S1, acquiring a respiratory signal according to the collected physiological signal;

[0036] Step S2, judging whether the signal quality corresponding to the respiratory signal meets the lead switching condition, if so, jump to step S3, otherwise, jump to step S4;

[0037] Step S3, triggering a lead switching instruction;

[0038] And, step S4, keep the current leads;

[0039] In the step S1, at the same moment, the ECG lead wire obtains the respiratory signal through one channel.

[0040] In step S1 described in this example, the respiratory signal is preferably obtained through the ECG lead wire, and then measured by the impedance method. After the internal hardware carrier processing of the monitoring instrument, the respiratory signal that reflects the change of the human thoracic impedance can be obt...

Embodiment 2

[0060] Such as figure 2 As shown, different from the above embodiment 1, step S102 in this example may also include the following sub-steps:

[0061] Step S1021, dividing the respiratory signal into three regions by setting a first amplitude threshold and a second amplitude threshold, wherein the first amplitude threshold is greater than the second amplitude threshold;

[0062] And, step S1022, judge the area where the breathing signal is located according to the amplitude of the breathing signal, and then select a multiple corresponding to the area where the breathing signal is located to perform adaptive gain processing.

[0063] Step S1021 described in this example includes the following sub-steps:

[0064] Step S10211, divide the respiratory signal into three regions by setting the first amplitude threshold and the second amplitude threshold, the three regions are the first region, the second region and the third region with decreasing amplitudes;

[0065] And, in step ...

Embodiment 3

[0102] Such as image 3 As shown, this example also provides a device for intelligent lead switching based on respiratory parameters, which adopts the method for intelligent lead switching based on respiratory parameters as described in Embodiment 1 or Embodiment 2, and includes:

[0103] The front-end respiratory signal acquisition module 1 is used to collect respiratory signals through ECG lead wires;

[0104] An adaptive gain processing module 2, configured to analyze the collected respiratory signal, and perform adaptive multiple gain processing according to the magnitude of the respiratory signal;

[0105] Judging the lead switching condition module 3, used to judge whether the signal quality after the gain processing meets the lead switching condition, and setting the lead switching flag according to the judgment result;

[0106] And, the lead switching control module 4 is configured to receive and respond to the lead switching instruction.

[0107] The lead switching ...

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Abstract

The invention provides an intelligent lead switching method and device based on respiration parameters. The intelligent lead switching method comprises the following steps: S1, acquiring a respiration signal according to an acquired physiologic signal; S2, judging whether the quality of a signal corresponding to the respiration signal meets the lead switching condition, if yes, turning to S3 and if no, turning to S4; S3, triggering a lead switching command; and S4, keeping the present lead, wherein in S1, an electrocardio lead line acquires the respiration signal by one channel at the same moment. The intelligent lead switching method and device based on respiration parameters can effectively improve the respiratory coefficient calculation accuracy, and meanwhile, can reduce respiration-related false alarms, and ensure that the overall performance of a monitor which utilizes the impedance method to measure the respiration parameters is effectively improved.

Description

technical field [0001] The invention relates to the field of biomedical signal processing, in particular to a method and device for intelligent lead switching based on respiratory parameters. Background technique [0002] At present, when the monitors on the market use the impedance method to measure respiratory parameters, it is necessary to manually set the measurement lead method first, and then perform the measurement, so that once the lead is selected, unless the lead is manually changed next time , otherwise it will always use this fixed lead for measurement, but in some special cases, for example, when the signal of the selected lead is greatly disturbed and the waveform quality is poor, it may lead to incorrect calculation of respiration rate and Falsely triggering some physiological or technical alarms will bring troubles to medical staff and patients. Under some large-scale interference, it may also cause the signal to cross the border and exceed the display range ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/08A61B5/053
Inventor 朱珍珍刘曼李芳谢祺
Owner EDAN INSTR
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