CN105615845B - Method and system for detecting interference pulse signal - Google Patents
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- 238000000034 method Methods 0.000 title abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims description 25
- 230000036772 blood pressure Effects 0.000 claims description 18
- 230000002452 interceptive effect Effects 0.000 description 9
- 210000001367 artery Anatomy 0.000 description 8
- 210000004204 blood vessel Anatomy 0.000 description 7
- 210000004369 blood Anatomy 0.000 description 4
- 239000008280 blood Substances 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004872 arterial blood pressure Effects 0.000 description 2
- 230000035488 systolic blood pressure Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 210000001736 capillary Anatomy 0.000 description 1
- 230000009084 cardiovascular function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035487 diastolic blood pressure Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009532 heart rate measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02108—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics
- A61B5/02116—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics of pulse wave amplitude
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02141—Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7221—Determining signal validity, reliability or quality
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Abstract
The invention provides an interference pulse signal detection method and system, wherein the method comprises the steps of obtaining a pulse amplitude sequence by detecting amplitude changes of pulse signals, fitting the pulse amplitude sequence to obtain a pulse amplitude fitting curve, calculating errors of each pulse amplitude point in the pulse amplitude sequence and a corresponding position in the pulse amplitude fitting curve, and if the errors are larger than a preset threshold value, judging the pulse signals corresponding to the pulse amplitude points to be interference pulse signals. Therefore, when the pulse signals are greatly interfered, the interference pulse signals are judged by the method and the device not easy to misjudge, so that the accuracy of detecting the interference pulse signals is improved.
Description
Technical Field
The invention relates to the field of signal processing, in particular to a method and a system for detecting an interference pulse signal.
Background
Blood Pressure (BP) refers to the pressure applied to the wall of a blood vessel when blood flows in the blood vessel, and is the driving force for driving the blood to flow in the blood vessel. When the ventricles contract, blood flows from the ventricles into the arteries, and the pressure of the blood on the arteries is the highest at this time, which is called the Systolic Blood Pressure (SBP); when the ventricles dilate, the arterial blood vessels retract elastically, blood flows forward slowly, and the blood pressure drops, at which time the pressure of the blood on the arteries is called the diastolic pressure (DBP). Since blood vessels are divided into arteries, capillaries, and veins, blood pressure is divided into arterial blood pressure, capillary blood pressure, and venous blood pressure. Blood pressure is commonly referred to as arterial blood pressure, which is an important physiological parameter of cardiovascular function. Pulse refers to the palpable pulse of the artery on the body surface. When a large amount of blood enters the artery, the pressure of the artery increases and the caliber expands, so that the artery feels the expansion at a shallow body surface, namely the pulse.
Currently, the blood pressure and pulse measurement generally adopts an oscillometric method to detect the amplitude change signals of the pulse, obtain corresponding pulse amplitude sequences according to the amplitude change signals, judge the interference pulse according to the local characteristics (the amplitude and the interval with the adjacent pulse) of the pulse amplitude sequences, calculate the envelope of the pulse amplitude sequences after the interference pulse is processed, and then calculate the blood pressure according to the envelope. However, when the pulse signal is greatly interfered, the pulse signal is easily misjudged by judging the interfered pulse through the local characteristics, so that the pulse envelope calculation is wrong, and further the blood pressure calculation is wrong.
Disclosure of Invention
In view of the above problems in the prior art, the present invention provides a method and a system for detecting an interfering pulse signal, which can improve the accuracy of detecting the interfering pulse signal.
The technical scheme of the method for detecting the interference pulse signal comprises the following steps:
detecting the amplitude change of the pulse signal, and obtaining a pulse amplitude sequence according to the amplitude change;
fitting the pulse amplitude sequence to obtain a pulse amplitude fitting curve;
and calculating the error of each pulse amplitude point in the pulse amplitude sequence and the corresponding position in the fitting curve of the pulse amplitude, and if the error is greater than a preset threshold value, judging that the pulse signal corresponding to the pulse amplitude point is an interference pulse signal.
The invention relates to a system for detecting an interfering pulse signal, comprising:
the detection module is used for detecting the amplitude change of the pulse signal and obtaining a pulse amplitude sequence according to the amplitude change;
the fitting module is used for fitting the pulse amplitude sequence to obtain a pulse amplitude fitting curve;
and the judging module is used for calculating the error of each pulse amplitude point in the pulse amplitude sequence and the corresponding position in the pulse amplitude fitting curve, and if the error is greater than a preset threshold value, judging that the pulse signal corresponding to the pulse amplitude point is an interference pulse signal.
According to the method and the system for detecting the interference pulse signals, the pulse amplitude sequence is obtained by detecting the amplitude change of the pulse signals, the pulse amplitude sequence is fitted to obtain a pulse amplitude fitting curve, the error of each pulse amplitude point in the pulse amplitude sequence and the corresponding position in the pulse amplitude fitting curve is calculated, and if the error is larger than a preset threshold value, the pulse signals corresponding to the pulse amplitude points are judged to be the interference pulse signals. Therefore, when the pulse signals are greatly interfered, the interference pulse signals are judged by the method and the device not easy to misjudge, so that the accuracy of detecting the interference pulse signals is improved.
Drawings
FIG. 1 is a flowchart illustrating a method for detecting an interfering pulse signal according to an embodiment;
FIG. 2 is a graph of a pulse oscillatory wave signal in accordance with a preferred embodiment;
fig. 3 is a schematic structural diagram of an interfering pulse signal detecting system according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Please refer to the flowchart of the method for detecting an interfering pulse signal in fig. 1, which includes steps S101 to S103:
s101, detecting the amplitude change of the pulse signal, and obtaining a pulse amplitude sequence according to the amplitude change.
In the step, the amplitude change of the pulse signal can be detected by an ascending oscillometric method, specifically, an air pump is used for inflating and pressurizing an inflatable cuff, the inflatable cuff is used for compressing an arterial blood vessel, the arterial blood vessel is in a change process of full opening, half closing and full closing along with the rise of the cuff pressure, the inflation of the inflatable cuff can be realized by a single chip microcomputer PWM control electric pump, the deflation is realized by a single chip microcomputer control electromagnetic valve, and the cuff pressure is the pressure obtained by the cuff in the pressurizing process. The pulse amplitude sequence is obtained by acquiring the amplitude change signal of cuff pressure with changed size through a pressure sensor arranged in the inflatable cuff, converting the amplitude change signal into a digital signal and transmitting the digital signal to signal processing equipment, and processing the digital signal through the signal processing equipment.
Further, after the pulse amplitude sequence is obtained according to the amplitude change, the pulse amplitude sequence with the amplitudes of the two side edges within a preset range is removed to obtain a new pulse amplitude sequence signal, so that the accuracy of the pulse amplitude sequence signal is improved.
And S102, fitting the pulse amplitude sequence to obtain a pulse amplitude fitting curve, so as to provide a reference basis for subsequent judgment of interference pulse signals.
Further, least square curve fitting can be performed on the pulse amplitude sequence to obtain a pulse amplitude fitting curve. The overall trend of the pulse amplitude sequence can be judged because the global optimal solution is solved by least square curve fitting.
Further, after the pulse amplitude sequence is fitted to obtain a pulse amplitude fitting curve, the fitting degree of the pulse amplitude fitting curve is calculated, and if the fitting degree is lower than a set value, the pulse signal is judged to have an interference pulse signal, so that the accuracy of judging the interference pulse signal is further improved.
S103, calculating the error of each pulse amplitude point in the pulse amplitude sequence and the corresponding position in the fitting curve of the pulse amplitude, and if the error is greater than a preset threshold value, judging that the pulse signal corresponding to the pulse amplitude point is an interference pulse signal. The interference pulse signal is judged through the step, so that the interference pulse signal is not easy to be judged by mistake, and the accuracy of detecting the interference pulse signal is improved.
Further, after the pulse signal corresponding to the pulse amplitude sequence is judged to be an interference pulse signal, the interference pulse signal is removed from the pulse amplitude sequence, so that the pulse signal is more accurate; performing least square curve fitting on the pulse amplitude sequence without the interference pulse signal to obtain a pulse amplitude fitting curve without the interference, so that the accuracy of the fitting curve is improved; and calculating the blood pressure according to the pulse amplitude fitting curve after interference removal, thereby improving the accuracy of blood pressure calculation.
According to the method for detecting the interference pulse signal, a pulse amplitude sequence is obtained by detecting the amplitude change of the pulse signal, a pulse amplitude fitting curve is obtained by fitting the pulse amplitude sequence, the error of each pulse amplitude point in the pulse amplitude sequence and the corresponding position in the pulse amplitude fitting curve is calculated, and if the error is larger than a preset threshold value, the pulse signal corresponding to the pulse amplitude point is judged to be the interference pulse signal. Therefore, when the pulse signals are greatly interfered, the interference pulse signals are judged by the method and the device not easy to misjudge, so that the accuracy of detecting the interference pulse signals is improved.
The following is a preferred implementation of the method for detecting an interfering pulse signal according to the present invention, which includes steps one to six:
the method comprises the following steps: the pulse oscillation wave signal output by the pressure sensor is collected to obtain a pulse oscillation wave signal curve chart shown in fig. 2, the pulse oscillation wave signal is obtained after the cuff pressure is processed by the pressure sensor when the cuff pressure is transmitted to the pressure sensor, and the cuff pressure is obtained in the pressurizing process of the cuff.
Detecting an amplitude change signal of a pulse oscillation wave signal by a rising oscillometric method, filtering the amplitude change signal, identifying the filtered signal, processing an identified pulse amplitude sequence, and removing the pulse amplitude sequence with smaller edges on two sides.
Step two: and performing least square curve fitting on the processed pulse amplitude sequence to obtain a pulse amplitude fitting curve, wherein the overall trend of the pulse amplitude sequence can be judged as the global optimal solution is solved by the least square curve fitting.
Step three: and solving the fitting degree of the fitting curve, and judging that the pulse signal has an interference pulse signal if the fitting degree is lower than a set value.
Step four: and calculating the error of each pulse amplitude point in the pulse amplitude sequence and the corresponding position in the fitting curve of the pulse amplitude, judging the pulse signal corresponding to the pulse amplitude point with the error larger than a preset threshold value as an interference pulse, and removing the interference pulse.
Step five: and performing least square curve fitting on the pulse amplitude sequence after the interference is removed again, and calculating the blood pressure on a new fitting curve.
According to a preferred implementation manner of the method for detecting the interference pulse signal, a pulse amplitude sequence is obtained by detecting the amplitude change of the pulse signal, a pulse amplitude fitting curve is obtained by fitting the pulse amplitude sequence, the error of each pulse amplitude point in the pulse amplitude sequence and the corresponding position in the pulse amplitude fitting curve is calculated, and if the error is greater than a preset threshold value, the pulse signal corresponding to the pulse amplitude point is judged to be the interference pulse signal. Therefore, when the pulse signals are greatly interfered, the interference pulse signals are judged by the method and the device not easy to misjudge, so that the accuracy of detecting the interference pulse signals is improved.
The invention further provides an interference pulse signal detection system, as shown in fig. 3, including a detection module 301, a fitting module 302 and a determination module 303.
The detection module 301 is configured to detect an amplitude change of a pulse signal, and obtain a pulse amplitude sequence according to the amplitude change; the fitting module 302 is configured to fit the pulse amplitude sequence to obtain a pulse amplitude fitting curve; and the determining module 303 is configured to calculate an error between each pulse amplitude sequence and a corresponding position in the pulse amplitude fitting curve, and if the error is greater than a preset threshold, determine that a pulse signal corresponding to the pulse amplitude sequence is an interference pulse signal.
The disturbing pulse signal detection system obtains a pulse amplitude sequence by detecting the amplitude change of a pulse signal, fits the pulse amplitude sequence to obtain a pulse amplitude fitting curve, calculates the error of each pulse amplitude point in the pulse amplitude sequence and the corresponding position in the pulse amplitude fitting curve, and judges the pulse signal corresponding to the pulse amplitude point as the disturbing pulse signal if the error is greater than a preset threshold value. Therefore, when the pulse signals are greatly interfered, the interference pulse signals are judged by the method and the device not easy to misjudge, so that the accuracy of detecting the interference pulse signals is improved.
In one embodiment, the detection module 301 is further configured to remove the pulse amplitude sequence with the amplitudes of the two side edges within a preset range after obtaining the pulse amplitude sequence according to the amplitude change, so as to obtain a new pulse amplitude sequence signal, thereby improving the accuracy of the pulse amplitude sequence signal.
In one embodiment, the fitting module 302 includes a fitting submodule configured to perform a least squares curve fitting on the pulse magnitude sequence to obtain a pulse magnitude fitting curve. The overall trend of the pulse amplitude sequence can be judged because the global optimal solution is solved by least square curve fitting.
In one embodiment, the fitting module 302 is further configured to calculate a fitting degree of the pulse amplitude fitting curve after fitting the pulse amplitude sequence to obtain the pulse amplitude fitting curve, and determine that an interfering pulse signal exists in the pulse signal if the fitting degree is lower than a set value, so as to further improve accuracy of determining the interfering pulse signal.
In one embodiment, the system further comprises a blood pressure calculation module for removing the interference pulse signal from the pulse amplitude sequence to make the pulse signal more accurate; performing least square curve fitting on the pulse amplitude sequence without the interference pulse signal to obtain a pulse amplitude fitting curve without the interference, so that the accuracy of the fitting curve is improved; and calculating the blood pressure according to the pulse amplitude fitting curve after interference removal, thereby improving the accuracy of blood pressure calculation.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (2)
1. Disturb pulse signal detection system, characterized by comprising:
the detection module is used for detecting the amplitude change of the pulse signal and obtaining a pulse amplitude sequence according to the amplitude change;
the fitting module is used for fitting the pulse amplitude sequence to obtain a pulse amplitude fitting curve;
the judging module is used for calculating the error of each pulse amplitude point in the pulse amplitude sequence and the corresponding position in the fitting curve of the pulse amplitude, and if the error is greater than a preset threshold value, judging that the pulse signal corresponding to the pulse amplitude point is an interference pulse signal;
the fitting module is further used for calculating the fitting degree of the pulse amplitude fitting curve after fitting the pulse amplitude sequence to obtain a pulse amplitude fitting curve, and judging that the pulse signal has an interference pulse signal if the fitting degree is lower than a set value;
further comprising:
the blood pressure calculation module is used for removing the interference pulse signals from the pulse amplitude sequence and performing least square curve fitting on the pulse amplitude sequence without the interference pulse signals to obtain a pulse amplitude fitting curve after interference removal; calculating blood pressure according to the pulse amplitude fitting curve after interference removal;
the detection module is further used for removing the pulse amplitude sequence with the amplitude values of the two side edges within a preset range after obtaining the pulse amplitude sequence according to the amplitude value change, so as to obtain a new pulse amplitude sequence signal.
2. The perturbed pulse signal detection system according to claim 1, wherein the fitting module comprises:
and the fitting submodule is used for performing least square curve fitting on the pulse amplitude sequence to obtain a pulse amplitude fitting curve.
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CN110200612B (en) | 2018-02-28 | 2021-02-26 | 广东乐心医疗电子股份有限公司 | Electronic sphygmomanometer method and system and electronic sphygmomanometer |
CN111709637B (en) * | 2020-06-11 | 2023-08-22 | 中国科学院西安光学精密机械研究所 | Qualitative analysis method for interference degree of spectrum curve |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1418595A (en) * | 2002-12-26 | 2003-05-21 | 天津市先石光学技术有限公司 | Wrist type electric sphygmomanometer, and its application method |
CN1981698A (en) * | 2005-12-14 | 2007-06-20 | 李哲英 | Woundless blood-pessure testing method based on waveform characteristic identification |
CN102579023A (en) * | 2011-01-06 | 2012-07-18 | 上海艾康菲医疗器械技术有限公司 | Method and device for processing pulse wave signal and electronic blood pressure measuring device |
CN104382569A (en) * | 2014-12-08 | 2015-03-04 | 天津工业大学 | Fiber-optic sensing intelligent garment and heart sound and blood pressure parameter processing methods thereof |
CN105266784A (en) * | 2014-06-05 | 2016-01-27 | 明仲 | Oscillography-based blood pressure measuring method and device |
CN105358049A (en) * | 2013-07-01 | 2016-02-24 | 欧姆龙健康医疗事业株式会社 | Electronic blood pressure monitor |
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BR112014013089B1 (en) * | 2011-12-01 | 2021-11-23 | Aalborg Universitet | METHOD AND SYSTEM FOR MONITORING A PREGNANT WOMAN OR A FETUS IN A PREGNANT WOMAN |
CN104644151B (en) * | 2015-02-01 | 2017-07-07 | 北京工业大学 | A kind of pressure pulse wave wave travel Forecasting Methodology based on photoelectricity volume pulse signal |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1418595A (en) * | 2002-12-26 | 2003-05-21 | 天津市先石光学技术有限公司 | Wrist type electric sphygmomanometer, and its application method |
CN1981698A (en) * | 2005-12-14 | 2007-06-20 | 李哲英 | Woundless blood-pessure testing method based on waveform characteristic identification |
CN102579023A (en) * | 2011-01-06 | 2012-07-18 | 上海艾康菲医疗器械技术有限公司 | Method and device for processing pulse wave signal and electronic blood pressure measuring device |
CN105358049A (en) * | 2013-07-01 | 2016-02-24 | 欧姆龙健康医疗事业株式会社 | Electronic blood pressure monitor |
CN105266784A (en) * | 2014-06-05 | 2016-01-27 | 明仲 | Oscillography-based blood pressure measuring method and device |
CN104382569A (en) * | 2014-12-08 | 2015-03-04 | 天津工业大学 | Fiber-optic sensing intelligent garment and heart sound and blood pressure parameter processing methods thereof |
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