CN108937897B

CN108937897B - Electronic sphygmomanometer method and device and electronic sphygmomanometer

Info

Publication number: CN108937897B
Application number: CN201810804767.8A
Authority: CN
Inventors: 余文翰
Original assignee: Guangdong Transtek Medical Electronics Co Ltd
Current assignee: Guangdong Transtek Medical Electronics Co Ltd
Priority date: 2018-07-20
Filing date: 2018-07-20
Publication date: 2021-08-10
Anticipated expiration: 2038-07-20
Also published as: CN108937897A

Abstract

The application provides an electronic sphygmomanometer method, an electronic sphygmomanometer device and an electronic sphygmomanometer, wherein the method comprises the following steps: detecting the pressure value in the air bag, and collecting the air pressure value sequence in the air bag in real time; extracting an air pressure pulsation sequence and a basic air pressure sequence according to the collected air pressure value sequence; sequentially traversing the air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence, judging whether the air pressure pulsation traversed at each time is abnormal, if so, adding 1 to the counting result of the control counter, judging whether the counting result of the counter reaches an interruption threshold value, if so, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement, and if not, traversing the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence, thereby improving the accuracy of the measurement result.

Description

Electronic sphygmomanometer method and device and electronic sphygmomanometer

Technical Field

The invention relates to the technical field of medical equipment, in particular to a method and a device for measuring an electronic sphygmomanometer and the electronic sphygmomanometer.

Background

Blood pressure meters are one of the most commonly used medical device tests, and electronic blood pressure meters using the principle of oscillography have been on the market for many years. This type of sphygmomanometer collects data on the air pressure in an air bag by wrapping the air bag around a portion of a human body and adjusting the air pressure in the air bag, and calculates the systolic/diastolic pressure of a subject based on the data.

The electronic sphygmomanometer adopting the oscillometric principle can inflate/deflate the air bag by controlling elements such as the air pump, the air valve and the like, so that the air quantity in the air bag is changed, the air pressure change in the air bag is further caused, and the air pressure change caused by inflation and deflation is called as basic air pressure change; when a blood vessel of a wound portion of a human body is compressed by an air bladder, the pulsation of the blood vessel causes a change in the air pressure in the air bladder, and the change in the air pressure caused by the pulsation of the blood vessel is referred to as air pressure pulsation. After the air pressure pulsation sequence is collected, the blood pressure of the testee is calculated according to the envelope characteristics of the air pressure pulsation sequence.

The air bag is inflated/deflated by two schemes, one scheme is that after the air bag is inflated rapidly, the air bag is deflated slowly, and air pressure pulsation information is acquired in the process of deflation slowly; the other is flat inflation and rapid deflation, and the air pressure pulsation information is collected during the flat inflation. Whether the measurement is carried out in an inflation mode or an deflation mode, the horizontal coordinates (basic air pressure) of the envelope curves of the measurement modes are in descending order from left to right, and the envelope curves generated by the two measurement modes are consistent.

Taking inflatable measurement as an example, a blood pressure calculation method in the prior art is detailed:

the method comprises the following steps of firstly, continuously collecting the air pressure value in an air bag in the inflation process, wherein the measurement process is shown in figure 1, the abscissa is a sampling point, the 64-point corresponds to 1 second, and the ordinate is the air pressure and the unit is mmHg;

secondly, extracting all the air pressure pulsation (for example, by high-pass filtering) contained in the air pressure value acquired in the first step, wherein the extracted air pressure pulsation is shown in fig. 2, the abscissa is a sampling point, the 64 points correspond to 1 second, and the ordinate is air pressure with unit of mmHg;

thirdly, generating an envelope by taking the amplitudes of all the air pressure pulses extracted in the second step as a vertical coordinate and the corresponding basic air pressures as a horizontal coordinate, and performing smoothing (optional) on the envelope, wherein the generated envelope is as shown in fig. 3; in fig. 3, the abscissa is the base atmospheric pressure corresponding to the atmospheric pressure pulsation in mmHg, the ordinate is the atmospheric pressure pulsation amplitude in mmHg, the solid line is the original envelope, and the broken line is the smoothed envelope.

Fourthly, identifying the maximum peak value of the envelope line, and regarding the maximum peak value as the maximum amplitude of the air pressure pulsation;

step five, multiplying the maximum peak value of the envelope by a diastolic pressure coefficient to obtain the air pressure pulsation amplitude corresponding to the diastolic pressure; searching a point equal to the envelope curve on the left side of the envelope curve, wherein the corresponding basic air pressure is diastolic pressure;

step six, multiplying the maximum peak value of the envelope by a systolic pressure coefficient to obtain an air pressure pulsation amplitude corresponding to systolic pressure; the point to the right of the envelope is found to be equal to the base pressure, which is the systolic pressure.

The fourth to sixth steps are as shown in fig. 4: in fig. 4, the abscissa represents the base air pressure corresponding to the air pressure pulsation in mmHg, the ordinate represents the amplitude of the air pressure pulsation in mmHg, and the black curve represents a smooth envelope.

The air bag is inflated/deflated by two schemes, one scheme is that after the air bag is inflated rapidly, the air bag is deflated slowly, and air pressure pulsation information is acquired in the process of deflation slowly; the other is flat inflation and rapid deflation, and the air pressure pulsation information is collected during the flat inflation. After the air pressure pulsation sequence is collected, the blood pressure is calculated according to the envelope characteristics of the air pressure pulsation sequence.

The human body wound part can be an upper arm or a wrist; correspondingly, the air bag can also be a cuff or a wrist strap.

The applicant has found through research that if a subject moves during the process of measuring the blood pressure of the subject by using an electronic sphygmomanometer, the original waveform can be disturbed, and the accuracy of the blood pressure calculation result is insufficient.

Disclosure of Invention

In view of this, embodiments of the present invention provide a method and an apparatus for measuring an electronic sphygmomanometer, and an electronic sphygmomanometer, so as to solve the problem that in the prior art, a measurement result of an electronic sphygmomanometer is easily affected by a user's body movement, and a calculation result with a large error is provided to a user.

In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:

an electronic sphygmomanometer method applied to an electronic sphygmomanometer adopting an oscillography principle includes:

detecting the pressure value in the air bag, and collecting the air pressure value sequence in the air bag in real time;

extracting an air pressure pulsation sequence and a basic air pressure sequence according to the collected air pressure value sequence;

sequentially traversing the air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence, judging whether the air pressure pulsation traversed at each time is abnormal, if so, controlling the counting result of the counter to add 1, judging whether the counting result of the counter reaches an interruption threshold value, if so, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement, and if not, traversing the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence.

Preferably, in the electronic sphygmomanometer method, the determining whether the air pressure pulsation traversed each time is abnormal, and if so, controlling a count result of a counter to be increased by 1, and determining whether the count result of the counter reaches an interrupt threshold includes:

performing first-order difference processing on a pulsating wave corresponding to the air pressure pulsation in the air pressure pulsation sequence to obtain a first-order difference wave corresponding to the pulsating wave;

acquiring a maximum value and a minimum value of the first order differential wave;

and calculating a difference value between the maximum value and the minimum value, judging whether the air pressure pulsation is interference pulsation according to a comparison result of the difference value and a first preset value, indicating that the air pressure pulsation is abnormal when the judgment result is yes, controlling the counting result of a first counter to be added with 1, and judging whether the counting result of the first counter reaches a first interruption threshold value.

judging whether the air pressure pulsation is effective pulse wave or not, and if so, acquiring the amplitude corresponding to the air pressure pulsation;

judging whether the air pressure pulsation is interference pulsation according to a comparison result of the amplitude and a second preset value, and if so, indicating that the air pressure pulsation is abnormal and controlling the counting result of a second counter to be added with 1;

and judging whether the counting result of the second counter reaches a second interruption threshold value.

calculating a difference value between the maximum value and the minimum value, judging whether the air pressure pulsation is interference pulsation according to a comparison result of the difference value and a first preset value, indicating that the air pressure pulsation is abnormal when the judgment result is yes, controlling a counting result of a first counter to be added with 1, and judging whether the counting result of the first counter reaches a first interruption threshold value;

when the air pressure pulsation is judged not to be interference pulsation according to the comparison result of the difference value and the first preset value, the method further comprises the following steps:

judging whether the air pressure pulsation is interference pulsation according to a comparison result of the amplitude and a second preset value, and controlling a counting result of a second counter to be increased by 1 when the judgment result is yes;

judging whether the counting result of the second counter reaches a second interruption threshold value or not;

if the pressure pulse sequence reaches the preset pressure pulse sequence, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement, and if the pressure pulse sequence does not reach the preset pressure pulse sequence, traversing the next pressure pulse in the pressure pulse sequence according to the generation time sequence, wherein the method comprises the following steps:

and when the counting result of the first counter reaches a first interruption threshold value or the counting result of the second counter reaches a second interruption threshold value, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement, wherein the counting result of the first counter does not reach the first interruption threshold value, and when the counting result of the second counter does not reach the second interruption threshold value, traversing the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence.

Preferably, in the electronic sphygmomanometer method, when it is determined that the traversed air pressure pulsation is not abnormal, the next air pressure pulsation in the air pressure pulsation sequence is traversed according to the generation time sequence.

Preferably, in the electronic sphygmomanometer method, the determining whether the air pressure pulsation is a significant pulse wave includes:

when the air pressure pulsation is the air pressure pulsation with the earliest generation time in the air pressure pulsation sequence, judging whether the air pressure pulsation is effective pulse wave or not according to a comparison result of the amplitude corresponding to the air pressure pulsation and a third preset value;

when the air pressure pulsation is not the air pressure pulsation with the earliest generation time in the air pressure pulsation sequence, judging whether the air pressure pulsation is effective pulse wave or not according to the difference value between the amplitude corresponding to the air pressure pulsation and the amplitude corresponding to the adjacent air pressure pulsation and the difference value between the base air pressure corresponding to the air pressure pulsation and the base air pressure corresponding to the adjacent air pressure pulsation;

traversing a next air pressure pulse in the sequence of air pressure pulses according to a generation time sequence when the air pressure pulse is not a valid pulse wave.

Preferably, in the electronic sphygmomanometer method, when the abnormal air pressure pulsation is detected but the electronic sphygmomanometer is not controlled to interrupt the measurement of the disturbance pulsation, a prompt mark is displayed on a display screen of the electronic sphygmomanometer.

An electronic blood pressure meter measuring device applied to an electronic blood pressure meter adopting an oscillography principle comprises:

the pressure detection unit is used for detecting the pressure value in the air bag and acquiring the air pressure value sequence in the air bag in real time;

the air pressure pulsation calculation unit is used for extracting an air pressure pulsation sequence and a basic air pressure sequence according to the collected air pressure value sequence;

the air pressure pulsation identification unit is used for sequentially traversing the air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence;

the abnormal air pressure pulsation judging unit is used for judging whether the air pressure pulsation traversed each time is abnormal or not, and if so, the counting result of the counter is controlled to be increased by 1;

and the interruption judging unit is used for judging whether the counting result of the counter reaches an interruption threshold value or not, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement if the counting result of the counter reaches the interruption threshold value, and traversing the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence if the counting result does not reach the interruption threshold value.

Preferably, in the electronic blood pressure measurement device, the abnormal air pressure pulsation determination means includes:

the differential processing unit is used for performing first-order differential processing on the pulsating wave of the air pressure pulsation in the air pressure pulsation sequence corresponding to the air pressure pulsation identified by the air pressure pulsation identification unit to obtain a first-order differential wave corresponding to the pulsating wave and obtain a maximum value and a minimum value of the first-order differential wave;

the first interference pulsation judgment unit is used for calculating a difference value between a maximum value and a minimum value corresponding to the air pressure pulsation, judging whether the air pressure pulsation is the interference pulsation according to a comparison result of the difference value and a first preset value, and if so, indicating whether the air pressure pulsation is abnormal, and controlling the counting result of the first counter to be added by 1;

and the interruption judging unit is used for judging whether the counting result of the first counter reaches a first interruption threshold value or not when the counting result of the first counter changes, if so, indicating whether the counting result reaches the interruption threshold value or not, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement, and if not, outputting a trigger signal to the air pressure pulsation identification unit so as to control the air pressure pulsation identification unit to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence.

an effective pulse wave determination unit configured to: judging whether the air pressure pulsation is effective pulse wave or not;

a second interference ripple determination unit configured to: when the air pressure pulsation is effective pulse wave, acquiring the amplitude corresponding to the air pressure pulsation; judging whether the air pressure pulsation is interference pulsation according to a comparison result of the amplitude and a second preset value, and if so, indicating whether the air pressure pulsation is abnormal, and controlling a counting result of a second counter to be added with 1;

the interruption determination unit is specifically configured to: and when the counting result of the second counter changes, judging whether the counting result of the second counter reaches a second interruption threshold value, if so, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement, and if not, outputting a trigger signal to the air pressure pulsation identification unit to control the air pressure pulsation identification unit to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence.

an effective pulse wave determination unit configured to: when the air pressure pulsation is judged not to be interference pulsation according to the comparison result of the difference value and a first preset value, judging whether the air pressure pulsation is effective pulse wave or not;

the interruption determination unit is specifically configured to: monitoring counting results of the first counter and the second counter, and controlling an alarm device to output an alarm signal and control the electronic sphygmomanometer to interrupt measurement when the counting result of the first counter reaches a first interrupt threshold value or the counting result of the second counter reaches a second interrupt threshold value; and traversing the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence when the counting result of the first counter does not reach the first interruption threshold and the counting result of the second counter does not reach the second interruption threshold.

Preferably, in the electronic blood pressure measurement device, the abnormal air pressure pulsation determination means is further configured to:

and when the traversed air pressure pulsation is judged to be abnormal, outputting a trigger signal to the air pressure pulsation identification unit so as to control the air pressure pulsation identification unit to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence.

Preferably, in the electronic blood pressure measurement device, the effective pulse wave determination means is specifically configured to:

and when the air pressure pulsation is not the effective pulse wave, outputting a trigger signal to the air pressure pulsation identification unit so as to control the air pressure pulsation identification unit to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence.

Preferably, the electronic blood pressure measurement device further includes:

and the marking unit is used for displaying a prompt mark on a display screen of the electronic sphygmomanometer when the abnormal air pressure pulsation is detected but the electronic sphygmomanometer is not controlled to interrupt the measurement of the interference pulsation.

An electronic blood pressure monitor to which the electronic blood pressure monitor measuring device according to any one of the above is applied.

Based on the technical scheme, in the process of measuring the blood pressure of the user by adopting the method, each air pressure pulsation in the measurement process is traversed, whether each traversed air pressure pulsation is abnormal or not is judged, the times of the abnormal air pressure pulsation are counted, when the times of the abnormal air pressure pulsation in the measurement process are larger than a preset value, the error of the measurement result is over large, the measurement result is unreliable, an alarm signal is output, the electronic sphygmomanometer is controlled to interrupt measurement, and the accuracy of the measurement result is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic diagram illustrating changes in barometric pressure values during a measurement process;

FIG. 2 is a schematic illustration of an extracted air pressure pulse;

FIG. 3 is a schematic diagram of the original envelope and the smoothed envelope;

FIG. 4 is a schematic representation of the calculation of systolic and diastolic pressures;

fig. 5 is a schematic flowchart of an electronic sphygmomanometer method according to an embodiment of the present application;

fig. 6 is a schematic flowchart of an electronic blood pressure measurement method according to another embodiment of the present application;

fig. 7 is a schematic flowchart of an electronic blood pressure measurement method according to another embodiment of the present application;

fig. 8 is a schematic flowchart of an electronic sphygmomanometer method according to yet another embodiment of the present application;

fig. 9 is a schematic structural diagram of a measuring device of an electronic sphygmomanometer according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In view of the above problems in the prior art, the present application discloses an electronic sphygmomanometer to determine the number of interference pulsations occurring due to the body movement of a subject during a blood pressure measurement process, and when the number of interference pulsations is too large, output an alarm signal and control the electronic sphygmomanometer to interrupt the measurement.

Specifically, referring to fig. 5, fig. 5 is a schematic flow chart of an electronic sphygmomanometer method disclosed in an embodiment of the present application, where the method may be applied to an electronic sphygmomanometer adopting an oscillography principle, and referring to fig. 5, the method includes:

step S101: detecting the pressure value in the air bag, and collecting the air pressure value sequence in the air bag in real time;

in the step, an air pressure value sequence in the air bag in the inflation process can be acquired in real time in a pressure detection mode, the corresponding relation between the pressure value in the air bag and the time is recorded through the air pressure value sequence, and in the acquired air pressure value sequence, on the basis of constantly and stably changing air pressure, constantly changing air pressure pulsation superposition with constantly changing oscillation amplitude is generated;

step S102: extracting an air pressure pulsation sequence and a basic air pressure sequence according to the collected air pressure value sequence;

the step is mainly to extract a pulsating air pressure value sequence from the air pressure value sequence extracted in the step S101, and specifically, the air pressure pulsating sequence and the basic air pressure sequence contained in the air pressure value sequence can be extracted by filtering the air pressure value sequence, such as high-pass filtering, band-pass filtering, moving average filtering and the like;

step S103: sequentially traversing the air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence;

in the step, the air pressure pulsation in the air pressure pulsation sequence is sequentially extracted according to the generation time sequence, each time one air pressure pulsation is extracted, the subsequent action is executed, and after the execution of the subsequent action is finished, the next air pressure pulsation is traversed;

step S104: judging whether the air pressure pulsation traversed each time is abnormal, if so, performing step S105, otherwise, returning to step S103 to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence;

step S105: controlling the counting result of the counter to be increased by 1;

step S106: judging whether the counting result of the counter reaches an interruption threshold value, if so, executing step S107, and if not, executing step S103 to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence, wherein the interruption threshold value can be set to be 4 or 5, and the like;

in the process of actually measuring the blood pressure, the action of a user is inevitable, and as long as the action times of the user are not excessive, the error of the measured result is within the allowable range, therefore, in the step, when an abnormal air pressure pulsation generated due to the action of the user is detected, the counting result of a counter is controlled to be added with 1, an interruption threshold value used for representing the action times of the user in the measuring process is set, when the counting result of the counter reaches the interruption threshold value, the fact that the user acts too frequently in the measuring process is indicated, the error of the measuring result is larger, a step S107 is executed, if the counting result of the counter is not more than the interruption threshold value, a step S103 is executed, and the next air pressure pulsation is continuously traversed;

step S107: and controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement.

When all the air pressure pulsation traversal in the sequence is completed and the measurement is not interrupted, the following steps are executed:

generating an envelope curve;

calculating the maximum value of the envelope curve;

multiplying the envelope maximum value by a diastolic pressure coefficient to obtain an air pressure pulsation amplitude corresponding to the diastolic pressure; searching a point which is equal to the envelope curve on the left side of the envelope curve, wherein the corresponding basic air pressure is diastolic pressure; multiplying the envelope maximum value by a systolic pressure coefficient to obtain an air pressure pulsation amplitude corresponding to systolic pressure; and searching a point which is equal to the value of the envelope curve on the right side of the envelope curve, wherein the corresponding basic air pressure is the systolic pressure. The diastolic pressure coefficient and the systolic pressure coefficient are obtained by analyzing according to clinical data, the numeric range of the diastolic pressure coefficient is between [0.2 and 0.7], and the numeric range of the systolic pressure coefficient is between [0.4 and 0.9 ];

according to the technical scheme disclosed by the embodiment of the application, in the process of measuring the blood pressure of the user by adopting the method, each air pressure pulsation in the measurement process is traversed, whether each traversed air pressure pulsation is abnormal or not is judged, the frequency of the abnormal air pressure pulsation is counted, when the frequency of the abnormal air pressure pulsation in the measurement process is greater than a preset value, the error of the measurement result is overlarge, the measurement result is unreliable, and an alarm signal is output and the electronic sphygmomanometer is controlled to interrupt measurement.

Specifically, the present application further discloses a specific method for determining whether the traversed air pressure pulsation is abnormal, referring to fig. 6, where the step S104 specifically includes:

step S1041: performing first-order difference processing on a pulsating wave corresponding to the air pressure pulsation in the air pressure pulsation sequence to obtain a first-order difference wave corresponding to the pulsating wave;

in this step, after the air pressure pulsation is extracted in step S103, a wave corresponding to the air pressure pulsation is extracted from the air pressure pulsation sequence, and the wave is referred to as a pulsation wave, and a first order difference wave corresponding to the pulsation wave is obtained by performing a first order difference process on the pulsation wave;

step S1042: acquiring a maximum value and a minimum value of the first order differential wave;

step S1043: calculating a difference value between the maximum value and the minimum value, judging whether the air pressure pulsation is interference pulsation according to a comparison result of the difference value and a first preset value, and if so, indicating whether the traversed air pressure pulsation is abnormal, and executing a step S105;

in the actual measurement, if an air pressure pulsation is caused by the movement of the measured person, the difference between the maximum value and the minimum value of the first order difference wave corresponding to the air pressure pulsation is larger than the difference between the maximum value and the minimum value of the first order difference wave corresponding to the normal air pressure pulsation generated by the pulse pulsation, here, a first preset value can be set, when the difference between the maximum value and the minimum value is larger than the first preset value, the air pressure pulsation is indicated to be the interference pulsation caused by the movement of the user, otherwise, the air pressure pulsation is considered to be the normal air pressure pulsation caused by the pulse pulsation. Wherein the value of the first preset value is any value between [30 and 90], and the unit is mmHg;

in this case, the step S105 specifically includes: and (6) controlling the counting result of the first counter to be increased by 1, wherein the step S106 specifically comprises the following steps: judging whether the counting result of the first counter reaches a first interruption threshold value, if so, executing step S107, and if not, executing step S103 to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence, wherein the first interruption threshold value can be set to be 4 or 5, and the like;

in the process of actually measuring the blood pressure, the action of the user is inevitable, and as long as the number of the actions of the user is not excessive, the error of the measured result is within the allowable range, therefore, in the step, every time when the air pressure pulsation generated by the action of the user is detected, the counting result of the first counter is controlled to be added with 1, a first interruption threshold value used for representing the number of the actions of the user in the measuring process is set, when the counting result of the first counter reaches the first interruption threshold value, the fact that the action of the user in the measuring process is too frequent is indicated, the error of the measuring result is larger, the step S107 is executed, and if the counting result is not larger than the first interruption threshold value, the step S103 is executed, and the next air pressure pulsation is continuously traversed.

In the technical solution disclosed in the embodiment of the present application, in addition to determining whether the air pressure pulsation is abnormal by determining whether the air pressure pulsation is an interference pulsation, the method may also determine whether the air pressure pulsation is abnormal by determining an amplitude of the air pressure pulsation, specifically, referring to fig. 7, where step S104 in the method may specifically include:

step S1044: judging whether the air pressure pulsation is effective pulse wave, if so, executing a step S1045, otherwise, not continuously judging the air pressure pulsation, and directly returning to the step S103 to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence;

the application also provides a judgment whether the air pressure pulsation is a specific mode of effective pulse wave, and specifically, the process can include:

when the air pressure pulsation is the air pressure pulsation with the earliest generation time in the air pressure pulsation sequence, the other air pressure pulsations are not traversed before the air pressure pulsation sequence, at the moment, whether the air pressure pulsation is an effective pulse wave is judged according to a comparison result of the amplitude corresponding to the air pressure pulsation and a third preset value, wherein when the amplitude corresponding to the air pressure pulsation is larger than the third preset value, the air pressure pulsation is an effective pulse wave, otherwise, the air pressure pulsation is an ineffective pulse wave, the third preset value can be an empirical maximum value of a normal pulse wave, the value of the third preset value can be any value between 1 and 5mmHg, the fourth preset value is 1.5 to 3 times of the amplitude of the adjacent air pressure pulsation, and the fifth preset value is 1 to 3 mmHg;

when the air pressure pulsation is not the air pressure pulsation with the earliest generation time in the air pressure pulsation sequence, judging whether the air pressure pulsation is an effective pulse wave according to a difference value between the amplitude corresponding to the air pressure pulsation and the amplitude corresponding to the adjacent air pressure pulsation and a difference value between the base air pressure corresponding to the air pressure pulsation and the base air pressure corresponding to the adjacent air pressure pulsation, specifically, when the difference value between the amplitude corresponding to the air pressure pulsation and the amplitude corresponding to the adjacent air pressure pulsation is greater than a fourth preset value or the difference value between the base air pressure corresponding to the air pressure pulsation and the base air pressure corresponding to the adjacent air pressure pulsation is greater than a fifth preset value, judging whether the air pressure pulsation is an effective pulse wave, and when two adjacent air pressure pulsations are present, if the difference value between the amplitude corresponding to one of the two adjacent air pressure pulsations is greater than the fourth preset value or if the difference value between the base air pressure pulsation is greater than the fifth preset value, the judgment result that the air pressure pulsation is the earliest generation time Whether the pressure pulsation is a significant pulse wave. The fourth preset value is any value between 1.5 and 3 times of the adjacent air pressure pulsation amplitude, when two air pressure pulsation amplitudes are adjacent, the fourth preset value is any value between 1.5 and 3 times of the mean value of the two air pressure pulsation amplitudes, and the fifth preset value is any value between 1 and 3 mmHg.

Step S1045: acquiring the amplitude corresponding to the air pressure pulsation;

step S1046: judging whether the air pressure pulsation is interference pulsation according to the comparison result of the amplitude and a second preset value, if so, executing the step S105, otherwise, indicating that the air pressure pulsation is normal pulsation, and executing the step S103 to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence;

before the technical scheme disclosed by the embodiment of the application is executed, a second preset value can be set according to the amplitude corresponding to the normal air pressure pulsation, and when the amplitude of the air pressure pulsation exceeds the second preset value, the air pressure pulsation is indicated as interference pulsation. Specifically, the second preset value may be any value between [25,80], and the unit is mmHg;

in this case, the step S105 specifically includes: controlling the counting result of the second counter to be increased by 1; the step S106 is specifically: judging whether the counting result of the second counter reaches a second interruption threshold value or not; wherein, the second terminal threshold value can be set to 3 or 4, etc.

Of course, in the technical solution disclosed in the embodiment of the present application, the method for determining whether the air pressure pulsation is abnormal may also be implemented by combining the manner of determining whether the air pressure pulsation is the interference pulsation and the manner of determining the amplitude of the air pressure pulsation, specifically, referring to fig. 8, the method includes:

step S1043: calculating a difference value between the maximum value and the minimum value, judging whether the air pressure pulsation is interference pulsation according to a comparison result of the difference value and a first preset value, if so, indicating whether the traversed air pressure pulsation is abnormal, executing a step S1051, and if not, executing a step S1044;

step S1044: judging whether the air pressure pulsation is effective pulse wave or not; if yes, executing step S1045, if not, not continuously judging the air pressure pulsation, directly returning to the value step S103 to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence;

step S1046: judging whether the air pressure pulsation is interference pulsation according to the comparison result of the amplitude and a second preset value, if so, executing the step S1052, otherwise, indicating that the air pressure pulsation is normal pulsation, and executing the step S103 to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence;

step S1051: controlling the counting result of the first counter to be increased by 1, and executing the step S1061;

step S1061: judging whether the counting result of the first counter reaches a first interruption threshold value, if so, executing the step S107, otherwise, executing the step S103;

step S1052: controlling the counting result of the second counter to be increased by 1, and executing step S1062;

step S1062: judging whether the counting result of the second counter reaches a second interruption threshold value, if so, executing the step S107, otherwise, executing the step S103;

Further, in the technical solutions disclosed in the above embodiments of the present application, when one of the air pressure pulsations is detected as an interference air pressure pulsation, the air pressure pulsation may be removed from the air pressure pulsation sequence, and the third step to the sixth step mentioned in the background art are performed based on the basic air pressure sequence from which the interference air pressure pulsation is removed and the corresponding air pressure pulsation sequence.

Of course, the method corresponding to fig. 8 may also determine, according to the sum of the counting results of the first counter and the second counter, whether to control the alarm device to output the alarm signal and control the electronic sphygmomanometer to interrupt measurement or traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence, specifically, the method further includes: when the counting result of the first counter or the second counter changes and the counting result of the counter with the changed counting result is not greater than the corresponding interrupt threshold, the sum of the counting results of the first counter and the second counter is calculated, when the sum of the counting results of the first counter and the second counter is greater than a third interrupt threshold, the alarm device is controlled to output an alarm signal and control the electronic sphygmomanometer to interrupt measurement when the sum of the counting results of the first counter and the second counter is greater than the third interrupt threshold, and when the sum of the counting results of the first counter and the second counter is not greater than the third interrupt threshold, the next air pressure pulsation in the air pressure pulsation sequence is traversed according to the generation time sequence.

In the technical scheme disclosed in the embodiment of the application, in order to facilitate the user to observe whether the user has an action during the measurement, when the electronic sphygmomanometer is detected but not controlled to interrupt measurement of the interference pulsation, a prompt identifier is displayed on a display screen of the electronic sphygmomanometer, specifically, when the interference pulsation is detected but the electronic sphygmomanometer is not controlled to interrupt measurement, a special identifier (for example, a continuously beating hand-shaped symbol or any other user-defined type prompt information) is displayed on the screen of the electronic sphygmomanometer, and further, the prompt information can be prompt information which changes along with the counting result of the first counter and the counting result of the second counter, so that when the user thinks that the error of the measurement result is large, the user can perform re-measurement.

Further, the prompt message may include a first prompt message and a second prompt message, the first prompt message changes along with the counting result of the first counter, and the second prompt message changes along with the counting result of the second counter.

Corresponding to the above method, the present application also discloses an electronic sphygmomanometer measuring apparatus, which is applied to an electronic sphygmomanometer adopting the oscillography principle, and the technical solutions in the method and the apparatus can be referred to each other, corresponding to the method corresponding to fig. 5, referring to fig. 9, the apparatus may include:

a pressure detection unit 100, corresponding to step S101 in the method, for detecting the pressure value in the air bag and acquiring the air pressure value sequence in the air bag in real time;

an air pressure pulsation calculation unit 200, corresponding to step S102 in the method, for extracting an air pressure pulsation sequence and a base air pressure sequence according to the collected air pressure value sequence;

an air pressure pulsation identification unit 300, corresponding to step S103 in the method, for sequentially traversing the air pressure pulsations in the air pressure pulsation sequence according to the generation time sequence;

an abnormal air pressure pulsation judgment unit 400, configured to judge whether the air pressure pulsation traversed each time is abnormal, and if yes, add 1 to the counting result of the control counter;

and the interruption judging unit 500 is used for judging whether the counting result of the counter reaches an interruption threshold value, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement if the counting result of the counter reaches the interruption threshold value, and traversing the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence if the counting result of the counter does not reach the interruption threshold value.

When the device is used for measuring the blood pressure of a user, each air pressure pulsation in the measuring process is traversed, whether the air pressure pulsation is interference pulsation or not is judged according to the difference value of the maximum value and the minimum value of the first-order difference corresponding to each air pressure pulsation, the frequency of the interference pulsation is counted, when the frequency of the interference pulsation in the measuring process is larger than a first preset value, the fact that the error of the measuring result is overlarge and the measuring result is unreliable is shown, an alarm signal is output, and the electronic sphygmomanometer is controlled to interrupt measurement.

Corresponding to the method shown in fig. 6, the abnormal air pressure pulsation determining unit 400 specifically includes: a difference processing unit and a first interference pulse judging unit;

a difference processing unit corresponding to steps S1041-S1042 in the method, configured to perform first-order difference processing on a pulse wave of the air pressure pulsation in the air pressure pulsation sequence corresponding to the air pressure pulsation identified by the air pressure pulsation identification unit, obtain a first-order difference wave corresponding to the pulse wave, and obtain a maximum value and a minimum value of the first-order difference wave;

a first interference pulse judging unit corresponding to steps S1043 and S105 in the method, configured to calculate a difference between a maximum value and a minimum value corresponding to the air pressure pulse, judge whether the air pressure pulse is an interference pulse according to a comparison result of the difference with a first preset value, and control a counting result of a first counter to add 1 when the judgment result is yes;

the interruption determining unit 500 corresponds to steps S106 to S107 in the method, and is configured to determine whether the counting result of the first counter reaches a first interruption threshold when the counting result of the first counter changes, control an alarm device to output an alarm signal and control the electronic sphygmomanometer to interrupt measurement if the counting result of the first counter reaches the first interruption threshold, and output a trigger signal to the air pressure pulsation identification unit to control the air pressure pulsation identification unit to traverse a next air pressure pulsation in the air pressure pulsation sequence according to a generation time sequence if the counting result of the first counter does not reach the first interruption threshold.

Corresponding to the method shown in fig. 7, the abnormal air pressure pulsation determining unit 400 specifically includes: the effective pulse wave judging unit and the second interference pulse judging unit;

an effective pulse wave determining unit, corresponding to the step S1044 in the method, configured to: judging whether the air pressure pulsation is effective pulse wave or not;

a second interference ripple determination unit, corresponding to steps S1045, S1046, and S105 in the method, configured to: when the air pressure pulsation is effective pulse wave, acquiring the amplitude corresponding to the air pressure pulsation; judging whether the air pressure pulsation is interference pulsation according to a comparison result of the amplitude and a second preset value, and if so, indicating whether the air pressure pulsation is abnormal, and controlling a counting result of a second counter to be added with 1;

at this time, the interruption determining unit is specifically configured to: and when the counting result of the second counter changes, judging whether the counting result of the second counter reaches a second interruption threshold value, if so, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement, and if not, outputting a trigger signal to the air pressure pulsation identification unit to control the air pressure pulsation identification unit to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence.

Corresponding to the method of fig. 7, the apparatus comprises: a pressure detection unit 100, an air pressure pulsation calculation unit 200, an air pressure pulsation identification unit 300, an abnormal air pressure pulsation determination unit 400, and an interruption determination unit 500;

the abnormal air pressure pulsation determination unit 400 includes:

the interruption determining unit 500 is specifically configured to: monitoring counting results of the first counter and the second counter, and controlling an alarm device to output an alarm signal and control the electronic sphygmomanometer to interrupt measurement when the counting result of the first counter reaches a first interrupt threshold value or the counting result of the second counter reaches a second interrupt threshold value; and traversing the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence when the counting result of the first counter does not reach the first interruption threshold and the counting result of the second counter does not reach the second interruption threshold.

Corresponding to the above method, the interruption determining unit 500 may be further configured to: when the counting result of the first counter or the second counter changes and the counting result of the counter with the changed counting result is not greater than the corresponding interrupt threshold, the sum of the counting results of the first counter and the second counter is calculated, when the sum of the counting results of the first counter and the second counter is greater than a third interrupt threshold, the alarm device is controlled to output an alarm signal and control the electronic sphygmomanometer to interrupt measurement when the sum of the counting results of the first counter and the second counter is greater than the third interrupt threshold, and when the sum of the counting results of the first counter and the second counter is not greater than the third interrupt threshold, the next air pressure pulsation in the air pressure pulsation sequence is traversed according to the generation time sequence.

Corresponding to the above method, the second interference ripple determining unit is further configured to:

and when the air pressure pulsation is judged not to be interference pulsation, outputting a trigger signal to the air pressure pulsation identification unit so as to control the air pressure pulsation identification unit to traverse the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence.

Corresponding to the above method, the effective pulse wave determining unit is specifically configured to:

Corresponding to the method, the device further comprises:

and the marking unit is used for marking the position of the interference pulse on a display screen of the electronic sphygmomanometer every time when one air pressure pulse is judged to be the interference pulse. Specifically, the marking unit is configured to: when the interference pulsation is detected but the electronic sphygmomanometer is not controlled to interrupt the measurement, a special identifier (such as a continuously beating hand symbol or any other self-defined type of prompt message) is displayed on the screen of the electronic sphygmomanometer, and the prompt message can be a prompt message which is changed along with the counting result of the first counter and the counting result of the second counter, so that when the user thinks that the error of the measurement result is large, the measurement is carried out again.

Corresponding to the device, the application also discloses an electronic sphygmomanometer, which can be applied with the electronic sphygmomanometer measuring device in any one of the embodiments.

For convenience of description, the above system is described with the functions divided into various modules, which are described separately. Of course, the functionality of the various modules may be implemented in the same one or more software and/or hardware implementations as the present application.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electronic sphygmomanometer method applied to an electronic sphygmomanometer adopting an oscillometric principle is characterized by comprising the following steps of:

sequentially traversing the air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence, judging whether the traversed air pressure pulsation is abnormal or not, if so, controlling the counting result of the counter to be added with 1, and judging whether the counting result of the counter reaches an interruption threshold or not, wherein the steps comprise:

performing first-order difference processing on a pulsating wave corresponding to the air pressure pulsation in the air pressure pulsation sequence to obtain a first-order difference wave corresponding to the pulsating wave; acquiring a maximum value and a minimum value of the first order differential wave; calculating a difference value between the maximum value and the minimum value, judging whether the air pressure pulsation is interference pulsation according to a comparison result of the difference value and a first preset value, indicating that the air pressure pulsation is abnormal when the judgment result is yes, controlling a counting result of a first counter to be added with 1, and judging whether the counting result of the first counter reaches a first interruption threshold value; if the pressure pulse sequence reaches the preset pressure pulse sequence, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement, and if the pressure pulse sequence does not reach the preset pressure pulse sequence, traversing the next pressure pulse in the pressure pulse sequence according to the generation time sequence;

or the like, or, alternatively,

performing first-order difference processing on a pulsating wave corresponding to the air pressure pulsation in the air pressure pulsation sequence to obtain a first-order difference wave corresponding to the pulsating wave; acquiring a maximum value and a minimum value of the first order differential wave; calculating a difference value between the maximum value and the minimum value, judging whether the air pressure pulsation is interference pulsation according to a comparison result of the difference value and a first preset value, indicating that the air pressure pulsation is abnormal when the judgment result is yes, controlling a counting result of a first counter to be added with 1, and judging whether the counting result of the first counter reaches a first interruption threshold value; when the air pressure pulsation is judged not to be interference pulsation according to the comparison result of the difference value and the first preset value, the method further comprises the following steps: judging whether the air pressure pulsation is effective pulse wave or not, and if so, acquiring the amplitude corresponding to the air pressure pulsation; judging whether the air pressure pulsation is interference pulsation according to a comparison result of the amplitude and a second preset value, and controlling a counting result of a second counter to be increased by 1 when the judgment result is yes; judging whether the counting result of the second counter reaches a second interruption threshold value or not; if the pressure pulse sequence reaches the preset pressure pulse sequence, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement, and if the pressure pulse sequence does not reach the preset pressure pulse sequence, traversing the next pressure pulse in the pressure pulse sequence according to the generation time sequence, wherein the method comprises the following steps: and when the counting result of the first counter reaches a first interruption threshold value or the counting result of the second counter reaches a second interruption threshold value, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement, wherein the counting result of the first counter does not reach the first interruption threshold value, and when the counting result of the second counter does not reach the second interruption threshold value, traversing the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence.

2. The electronic sphygmomanometer method according to claim 1, wherein when it is determined that the traversed air pressure pulsation is not abnormal, a next air pressure pulsation in the air pressure pulsation sequence is traversed according to a generation time order.

3. The electronic sphygmomanometer method according to claim 1, wherein the determining whether the air pressure pulsation is a valid pulse wave includes:

4. The electronic sphygmomanometer method according to claim 1, wherein when the air pressure pulsation is detected to be abnormal but the electronic sphygmomanometer is not controlled to interrupt the measurement of the disturbance pulsation, a prompt mark is displayed on a display screen of the electronic sphygmomanometer.

5. An electronic sphygmomanometer measuring apparatus applied to an electronic sphygmomanometer using an oscillometric principle, comprising:

an abnormal air pressure pulsation judging unit, which is used for judging whether the air pressure pulsation traversed each time is abnormal, if so, the counting result of the control counter is added with 1,

the interruption judging unit is used for judging whether the counting result of the counter reaches an interruption threshold value or not, controlling an alarm device to output an alarm signal and controlling the electronic sphygmomanometer to interrupt measurement if the counting result of the counter reaches the interruption threshold value, and traversing the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence if the counting result does not reach the interruption threshold value; wherein the abnormal air pressure pulsation determination unit includes: a difference processing unit and a first interference pulse judging unit;

when the abnormal air pressure pulsation determination unit includes: when the difference processing unit and the first interference pulse judging unit are used, the interruption judging unit is specifically used for judging whether the counting result of the first counter reaches a first interruption threshold value or not when the counting result of the first counter changes, if so, the interruption threshold value is reached, the interruption judging unit indicates whether the counting result reaches the interruption threshold value or not, an alarm device is controlled to output an alarm signal and control the electronic sphygmomanometer to interrupt measurement, and if not, a trigger signal is output to the air pressure pulse identifying unit so as to control the air pressure pulse identifying unit to traverse the next air pressure pulse in the air pressure pulse sequence according to the generation time sequence;

or the like, or, alternatively,

the abnormal air pressure pulsation determination unit includes: the device comprises a difference processing unit, a first interference pulse judging unit, an effective pulse wave judging unit and a second interference pulse judging unit;

when the abnormal air pressure pulsation determination unit includes: when the difference processing unit, the first interference pulse judging unit, the effective pulse wave judging unit and the second interference pulse judging unit are used, the interruption judging unit is specifically configured to: monitoring counting results of the first counter and the second counter, and controlling an alarm device to output an alarm signal and control the electronic sphygmomanometer to interrupt measurement when the counting result of the first counter reaches a first interrupt threshold value or the counting result of the second counter reaches a second interrupt threshold value; and traversing the next air pressure pulsation in the air pressure pulsation sequence according to the generation time sequence when the counting result of the first counter does not reach the first interruption threshold and the counting result of the second counter does not reach the second interruption threshold.

6. The electronic sphygmomanometer measurement apparatus according to claim 5, wherein the abnormal air pressure pulsation determination unit is further configured to:

7. The electronic blood pressure meter measuring device according to claim 5,

the effective pulse wave judging unit is specifically configured to:

8. The electronic sphygmomanometer measurement apparatus according to claim 5, further comprising: and the marking unit is used for displaying a prompt mark on a display screen of the electronic sphygmomanometer when the abnormal air pressure pulsation is detected but the electronic sphygmomanometer is not controlled to interrupt the measurement of the interference pulsation.

9. An electronic blood pressure monitor, which is applied to the electronic blood pressure monitor measuring device according to any one of claims 5 to 8.