CN113208602A

CN113208602A - Processing method of electrocardiographic waveform, electrocardiograph and device

Info

Publication number: CN113208602A
Application number: CN202010064410.8A
Authority: CN
Inventors: 邱四海; 严彬彬; 张在阳; 周丹; 戴志龙
Original assignee: Edan Instruments Inc
Current assignee: Edan Instruments Inc
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2021-08-06

Abstract

The application discloses a processing method of an electrocardiographic waveform, an electrocardiograph and a device, wherein the method comprises the following steps: processing the electrocardiograph on the electrocardiograph waveform to obtain an average template waveform corresponding to the electrocardiograph waveform; displaying the average template waveform on a display interface; and responding to preset operation of a user on the display interface, and performing corresponding zooming processing on the average template waveform displayed on the display interface. By means of the mode, the average template waveform can be conveniently checked by a user, and the operation is simple.

Description

Processing method of electrocardiographic waveform, electrocardiograph and device

Technical Field

The application relates to the technical field of electrocardio, in particular to a processing method of an electrocardio waveform, an electrocardiograph and a device.

Background

The electrocardiogram records the physiological and electrical activity of human heart, contains abundant physiological and pathological information reflecting heart rhythm and electric conductivity thereof, and is one of the important bases for diagnosing heart diseases and evaluating heart functions. Therefore, when a doctor makes a clinical diagnosis, the doctor usually needs to look at an average template of an electrocardiographic waveform and make a diagnosis based on parameters of the average template.

At present, doctors all look at the average template of the electrocardiographic waveform through a computer terminal. Specifically, the computer end calculates an average template according to the acquired electrocardiographic waveforms acquired by the electrocardiograph, and displays the average template waveform on the computer end. According to the mode, after the electrocardiographic waveforms are collected, the average template waveforms are checked through the computer terminal, and the like, so that the operation is complex.

Disclosure of Invention

The technical problem that this application mainly solved provides a processing method, electrocardiograph and device of electrocardio waveform, and the user is convenient for look over average template waveform, and easy operation.

In order to solve the technical problem, the application adopts a technical scheme that: provided is a processing method of an electrocardiographic waveform, comprising the following steps: processing the electrocardiograph on the electrocardiograph waveform to obtain an average template waveform corresponding to the electrocardiograph waveform; displaying the average template waveform on a display interface; and responding to preset operation of a user on the display interface, and performing corresponding zooming processing on the average template waveform displayed on the display interface.

Wherein, the step of processing the electrocardiographic waveform to obtain an average template waveform corresponding to the electrocardiographic waveform comprises the following steps: obtaining a plurality of valid QRS waveforms on an electrocardiographic waveform; and obtaining an average template waveform of the electrocardiographic waveform based on the amplitudes of the corresponding points of the plurality of effective QRS waveforms.

Wherein, based on the amplitudes of the corresponding points of the effective QRS waveforms, the step of obtaining the average template waveform of the electrocardiographic waveform comprises the following steps: obtaining the average value of the amplitudes of corresponding points on a plurality of effective QRS waveforms, and taking the average value as the amplitude of the corresponding point on the average template waveform; or, sequencing a plurality of effective QRS waveforms according to the amplitude values, and taking the effective QRS waveform at the middle position as an average template waveform corresponding to the electrocardiogram waveform.

Wherein, process the electrocardio waveform, obtain the step of the average template waveform that the electrocardio waveform corresponds, include: processing each lead electrocardiographic waveform in the multi-lead electrocardiographic waveforms to obtain an average template waveform corresponding to each lead electrocardiographic waveform; the step of displaying the average template waveform on a display interface comprises the following steps: displaying an average template waveform of at least one lead electrocardiogram waveform in a waveform display area of a display interface based on a selection operation of a user on the display interface; and the baseline position of the average template waveform corresponding to each lead to be displayed is the same.

Wherein, based on the selection operation of the user on the display interface, the step of displaying the average template waveform of the at least one lead electrocardiogram waveform in the waveform display area of the display interface comprises the following steps: displaying a plurality of waveform thumbnails in a waveform selection area of a display interface, wherein the plurality of waveform thumbnails comprise an average template waveform thumbnail of each lead electrocardiographic waveform and thumbnails obtained by superposing average template waveforms of all lead electrocardiographic waveforms; and when a selection signal of a waveform thumbnail from a user in the waveform selection area is detected, displaying the average template waveform corresponding to the selected waveform thumbnail in the waveform display area.

Wherein the preset operation is at least one of: clicking a preset icon on a display interface, clicking an average template waveform displayed on the display interface, double clicking the average template waveform displayed on the display interface, and touching the display interface to form two touch points which are close to or far away from each other on the display interface.

After the average template waveform is displayed on the display interface, the method further comprises the following steps: displaying at least one reference line at a corresponding position of the average template waveform on a display interface; wherein the at least one datum line comprises at least one of a P datum line, a Q datum line, an S datum line and a T datum line; responding to the movement operation of the user on the reference line, and moving the reference line according to the movement track of the user; and obtaining and displaying the characteristic parameter value corresponding to the electrocardiographic waveform based on the position of the moved datum line on the average template waveform.

After the step of obtaining and displaying the characteristic parameters corresponding to the electrocardiographic waveform based on the position of the moved reference line on the average template waveform, the method further comprises the following steps: and detecting a trigger signal of the user to an analysis icon on the display interface, and analyzing the characteristic parameter value to obtain an electrocardio analysis result.

In order to solve the above technical problem, another technical solution adopted by the present application is: there is provided an electrocardiograph comprising: a processor and a memory coupled to each other, the processor being configured to execute program instructions stored by the memory to implement the steps of any of the methods described above.

In order to solve the above technical problem, the present application adopts another technical solution that: there is provided a computer readable storage medium having stored thereon program instructions which, when executed by a processor, implement the steps of any of the methods as described above.

The beneficial effect of this application is: different from the situation of the prior art, the method and the device have the advantages that the electrocardiograph directly processes the electrocardiograph waveform to obtain the average template waveform corresponding to the electrocardiograph waveform, and the average template waveform is displayed on the display interface of the electrocardiograph, so that a user can conveniently and directly check the average template waveform on the electrocardiograph after acquiring the electrocardiograph waveform through the electrocardiograph; secondly, responding to the preset operation of the user on the display interface, correspondingly zooming the average template waveform displayed on the display interface, and facilitating the user to check the average template waveform, wherein the waveform can be zoomed rapidly by detecting the preset operation of the user, and the operation mode is simple.

Drawings

FIG. 1a is a schematic flow chart of a first embodiment of a method for measuring electrocardiographic waveform data according to the present application;

FIG. 1b is a schematic flowchart of step S101 of the first embodiment of the method for measuring electrocardiographic waveform data according to the present application;

FIG. 2 is a schematic diagram of a display interface of an averaged template waveform for a lead II of the present application;

FIG. 3 is a schematic diagram of a display interface of an average template waveform for all leads of the present application;

FIG. 4 is a schematic flow chart of a second embodiment of the method for measuring electrocardiographic waveform data according to the present application;

FIG. 5 is a schematic diagram of an enlarged display of the average template waveform of lead II of the present application;

FIG. 6a is a schematic flow chart of a third embodiment of the method for measuring electrocardiographic waveform data according to the present application;

FIG. 6b is a partial schematic flow chart of a fourth embodiment of the method for measuring electrocardiographic waveform data according to the present application;

FIG. 7 is a schematic view of an interface for displaying the results of the electrocardiographic analysis according to the present application;

FIG. 8 is a flow chart illustrating a fifth embodiment of the method for measuring electrocardiographic waveform data according to the present application;

FIG. 9 is a flow chart illustrating a sixth embodiment of the method for measuring electrocardiographic waveform data according to the present application;

FIG. 10a is another schematic representation of a magnified display of the averaged template waveform of lead II of the present application;

FIG. 10b is a further schematic representation of a magnified display of the averaged template waveform for lead II of the present application;

FIG. 11 is a schematic diagram of a frame of an embodiment of the electrocardiograph of the present application;

FIG. 12 is an exploded view of another embodiment of the electrocardiograph of the present application;

FIG. 13 is a schematic structural diagram of an embodiment of a computer-readable storage medium of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

Referring to fig. 1a to 3, fig. 1a is a schematic flowchart illustrating a first embodiment of a data measurement method for an electrocardiographic waveform of the present application, fig. 1b is a schematic flowchart illustrating a step S101 of the first embodiment of the data measurement method for an electrocardiographic waveform of the present application, fig. 2 is a schematic display interface diagram illustrating an average template waveform of a lead ii of the present application, and fig. 3 is a schematic display interface diagram illustrating an average template waveform of all leads of the present application. The method of this implementation may include the steps of:

step S101: the electrocardiograph processes the electrocardiographic waveform to obtain an average template waveform corresponding to the electrocardiographic waveform.

The electrocardiograph in the embodiment has computing capability, and can directly process the acquired electrocardiographic waveform to obtain an average template waveform corresponding to the electrocardiographic waveform.

Specifically, referring to fig. 1b in combination, step S101 may include the following sub-steps S1011 and S1012:

step S1011: a plurality of valid QRS waveforms on an electrocardiographic waveform is acquired.

For example, the electrocardiograph obtains a plurality of valid QRS waveforms on the electrocardiographic waveform, wherein the electrocardiograph can directly screen out complete and normal QRS waveforms according to a preset algorithm, wherein the complete QRS waveforms can be waveforms containing P wave, Q wave, R wave, S wave and T wave, and the normal QRS waveforms can be continuous waveforms or waveforms with characteristic values within a preset range.

In addition, since the number of invalid QRS waveforms is generally much smaller than the number of valid QRS waveforms, for the sake of simple algorithm steps, the invalid QRS waveforms can be determined by a preset algorithm and excluded, so that the remaining QRS waveforms are regarded as valid QRS waveforms. Wherein, the invalid judgment of the QRS waveform can be carried out by judging whether the QRS waveform is complete or not. Generally, since the time points at which the electrocardiograph starts and ends acquiring the electrocardiographic waveforms are not necessarily valid start and end points of the QRS waveforms, the first QRS waveform and the last QRS waveform in the acquired electrocardiographic waveforms may be incomplete electrocardiographic waveforms, so that the incomplete QRS waveform may be determined as an invalid QRS waveform and excluded, leaving other valid QRS waveforms. In addition, because the initially acquired QRS waveform is abnormal due to emotional tension of the acquired person during the initial acquisition of the electrocardiographic waveform and lasts for a period of time, the emotional tension type QRS waveform can be judged through a preset algorithm and eliminated; or directly judging the QRS waveform as an invalid QRS waveform at the beginning of a preset time period and excluding the invalid QRS waveform.

Step S1012: and obtaining an average template waveform of the electrocardiographic waveform based on the amplitudes of the corresponding points of the plurality of effective QRS waveforms.

After obtaining a plurality of effective QRS waveforms on the electrocardiographic waveform, obtaining amplitudes of corresponding points of the plurality of effective QRS waveforms, and averaging or taking a median of the amplitudes of the corresponding points of the plurality of effective QRS waveforms to be used as the amplitudes of the corresponding points of an average template waveform of the electrocardiographic waveform. For example, the amplitudes of the peak points of the plurality of effective QRS waveforms are averaged to obtain the amplitude of the peak point corresponding to the average template waveform of the electrocardiographic waveform, and similarly, the amplitudes of the valley points of the plurality of effective QRS waveforms are averaged to obtain the amplitude of the valley point corresponding to the average template waveform of the electrocardiographic waveform. Except for the peak point and the valley point, the amplitudes of other corresponding points of the average template waveform of the electrocardiographic waveform can also be obtained by averaging or taking a median from the amplitudes of corresponding points of a plurality of effective QRS waveforms, which is not described herein.

In some embodiments, step S1012 may specifically include: and acquiring the average value of the amplitudes of the corresponding points on the plurality of effective QRS waveforms to be used as the amplitude of the corresponding point on the average template waveform.

In general, an electrocardiographic waveform may include a start point, an end point, a peak, and a trough. Specifically, the obtained multiple effective QRS waveforms may be aligned, that is, the start points and the end points of the multiple effective QRS waveforms are the same, the amplitude values of the multiple effective QRS waveforms corresponding to the same time point are obtained, the average value of the amplitude values of the multiple effective QRS waveforms corresponding to the time point is calculated, and the average value is used as the amplitude value of the average template waveform corresponding to the time point. And correspondingly calculating the amplitudes of the average template waveforms corresponding to all the time points according to the method so as to obtain the average template waveform of the electrocardiographic waveform.

In other embodiments, step S1012 may specifically include: and sequencing the effective QRS waveforms according to the amplitude values, and taking the effective QRS waveforms in the middle position as average template waveforms corresponding to the electrocardiogram waveforms.

Specifically, the obtained multiple effective QRS waveforms may be aligned, that is, the start points and the end points of the multiple effective QRS waveforms are the same, the amplitudes of the multiple effective QRS waveforms corresponding to a time point are sorted according to a descending order or a descending order, and the effective QRS waveform at the middle position is taken as an average template waveform corresponding to the electrocardiographic waveform. The time point may be randomly selected or preset.

Wherein, the above sorting mode includes two cases, one case: if the effective QRS waveforms are odd effective QRS waveforms, only one effective QRS waveform in the middle position is available, and the effective QRS waveform can be directly selected as an average template waveform corresponding to the electrocardiogram waveform; in another case: if the plurality of effective QRS waveforms are an even number of effective QRS waveforms, two effective QRS waveforms at the middle position are present, one embodiment is to select one of the effective QRS waveforms as an average template waveform corresponding to the electrocardiographic waveform, and the other embodiment is to use an average value of amplitudes of corresponding points on the two effective QRS waveforms as amplitudes of corresponding points on the average template waveform, so as to obtain an average template waveform of the electrocardiographic waveform. It should be noted that there are various methods for obtaining the average template waveform, and the method is not limited to the manner described in step S1012.

The electrocardiograph can acquire multi-lead electrocardiographic waveforms. The multiple leads may include 3 leads, 5 leads, 12 leads, 15 leads, 18 leads, and the like, which is not limited herein. Correspondingly, the step S101 may specifically include: processing each lead electrocardiographic waveform in the multi-lead electrocardiographic waveforms to obtain an average template waveform corresponding to each lead electrocardiographic waveform. The steps S1011 and S1012 may be performed on each lead electrocardiographic waveform to obtain an average template waveform corresponding to each lead electrocardiographic waveform, which is not described herein again. Step S102: and displaying the average template waveform on a display interface.

In this embodiment, the electrocardiograph may include at least one display interface for displaying the averaged template waveform. For example, the electrocardiograph is provided with a touch display screen, and an interface displayed by the touch display screen is the display interface.

The corresponding multi-lead electrocardiographic waveforms can be correspondingly provided with a plurality of average template waveforms, and the electrocardiograph can provide a waveform selection area for a user to select the average template waveform to be displayed, so that the average template waveform selected by the user is displayed. Wherein the electrocardiograph may include at least one display interface. As shown in fig. 2 and 3, the display interface may include a waveform selection area 201 and a waveform display area 202. The area proportion and the relative position of the waveform selection area 201 and the waveform display area 202 can be adjusted according to actual conditions. Alternatively, the area ratio of the waveform selection area 201 and the waveform display area 202 may be 1: 4.

A plurality of waveform thumbnails are displayed in the waveform selection area 201 of the display interface, wherein the plurality of waveform thumbnails may include an average template waveform thumbnail of each lead electrocardiographic waveform (e.g., an average template waveform thumbnail of the I-th lead, an average template waveform thumbnail of the II-th lead, an average template waveform thumbnail of the III-th lead … … in the waveform selection area 201 of fig. 2), and a thumbnail obtained by superimposing average template waveforms of ALL lead electrocardiographic waveforms (e.g., an average template waveform superimposition thumbnail of ALL leads in the waveform selection area 201 of fig. 2). The waveform thumbnail includes the name of the lead and the average template waveform corresponding to the lead. When a selection signal of a waveform thumbnail from the user in the waveform selection area 201 is detected, the average template waveform corresponding to the selected waveform thumbnail is displayed in the waveform display area 202. The user can visually check the waveform through the waveform thumbnail so as to conveniently and quickly and accurately select the average template waveform to be checked. Alternatively, when a selection signal of the user for the waveform thumbnail in the waveform selection area 201 is detected again, the average template waveform of the electrocardiographic waveform displayed in the waveform display area 202 is hidden to prevent the privacy information from being leaked. For example, when the doctor does not need to view the electrocardiographic waveform, the waveform displayed in the waveform display area 202 may be hidden to prevent private information from being leaked out.

The selection signal may be a sliding signal, and when the sliding signal of the user is detected, different average template waveforms are displayed in a switching manner. In this case, the waveform may be displayed in a switching manner according to the movement trajectory of the touch point generated in the waveform display area 202 by the user. As shown in fig. 2, the waveform currently displayed in the waveform display area 202 is an average template waveform of the second lead, and when it is detected that the touch point of the user moves to the right, average template waveforms corresponding to the waveform thumbnail where the touch point is located are sequentially displayed, that is, the average template waveform of the third lead, the average template waveform of the AVR lead, and the like are sequentially displayed; and similarly, when the touch point of the user is detected to move leftwards, sequentially displaying the average template waveform of the I-th lead and the average template waveform of the ALL lead, wherein the average template waveform corresponding to the waveform thumbnail finally staying at the touch point is the average template waveform finally displayed. The movement trajectory may be a non-closed trajectory and a closed trajectory. The non-closed locus is, for example, a line segment of a predetermined length, and the closed locus is, for example, a circle, a rectangle, a triangle, or the like. The touch point in all embodiments of the present application may be generated by a finger of a user or an operation tool having an indication function touching the display interface. The user may include an acquirer or an acquirer of an electrocardiographic waveform or other persons, and the operation tool having a pointing function may include a mouse, a laser pen, a touch pen, or the like.

Based on a user's selection on the display interface, an average template waveform of the at least one lead electrocardiographic waveform is displayed in a waveform display area 202 of the display interface. Optionally, a parallel line is established with the start of the Q wave as a reference point. The baseline position of the average template waveform of each lead to be displayed in the display interface is the same, that is, the positions of the starting points of the corresponding Q waves in the display interface are the same when the average template waveform of each lead to be displayed is displayed in the display interface.

It is understood that in some embodiments, the electrocardiograph may also measure the average template waveform to obtain a measurement value, and may analyze the measurement value to obtain an analysis result, and the measurement value and/or the analysis result may be displayed on the display interface.

In this embodiment, the electrocardiograph may directly process the electrocardiographic waveform to obtain an average template waveform corresponding to the electrocardiographic waveform, and the average template waveform is displayed on the electrocardiograph display interface, so that a user can directly view the average template waveform on the electrocardiograph after acquiring the electrocardiographic waveform through the electrocardiograph; secondly, as the electrocardiographic waveform does not need to be transmitted to the computer, the situation that the user cannot check the average template waveform caused by problems in the transmission process, such as poor network signals, can be avoided; and thirdly, displaying the average template waveforms of all leads in the waveform selection area in a thumbnail mode, so that a user can more intuitively select the average template waveforms to be checked.

For the average template waveform displayed on the display interface in the above embodiment, the electrocardiograph provides the functions of zooming, baseline repositioning, etc. for the displayed average template waveform. Reference may be made in particular to the following process examples.

Referring to fig. 4 and 5, fig. 4 is a schematic flow chart of a second embodiment of the method for measuring electrocardiographic waveform data of the present application, and fig. 5 is a schematic display interface diagram of the enlarged average template waveform of the second lead of the present application. The method of the embodiment may include the steps of:

step S201: the electrocardiograph processes the electrocardiographic waveform to obtain an average template waveform corresponding to the electrocardiographic waveform.

Step S202: and displaying the average template waveform on a display interface.

The relevant descriptions of steps S201 and S202 can refer to steps S101 and S102 in the above embodiments, which are not described herein again.

Step S203: and responding to preset operation of a user on the display interface, and performing corresponding zooming processing on the average template waveform displayed on the display interface.

Optionally, the magnification or reduction factor can be displayed on the display interface in real time. Specifically, the preset operation may be at least one of: clicking a preset icon on a display interface, clicking an average template waveform displayed on the display interface, double clicking the average template waveform displayed on the display interface, and touching the display interface to form two touch points which are close to or far away from each other on the display interface.

Alternatively, for example, the preset icons may include a zoom-in icon and a zoom-out icon. The enlargement icon is used for enlarging and displaying the average template waveform, and the reduction icon is used for reducing and displaying the average template waveform. For example, the electrocardiograph performs enlargement processing on the average template waveform displayed on the display interface in response to the user clicking a zoom-in icon on the display interface, and performs reduction processing on the average template waveform displayed on the display interface in response to the user clicking a reduction icon on the display interface.

For example, in the case of zooming an average template waveform displayed on a single-click or double-click display interface, the zooming of the waveform may be within a certain preset range. Specifically, in response to the average template waveform displayed on the single-click or double-click display interface of the user, the average template waveform displayed on the display interface is amplified, and after the amplification threshold is reached, the average template waveform displayed on the single-click or double-click display interface continues to correspond to the average template waveform displayed on the display interface, so that the average template waveform displayed on the display interface can be stopped from being amplified or reduced. In other embodiments, the average template waveform with the preset zoom size can be directly displayed by clicking or double clicking the average template waveform displayed on the display interface.

Further, for example, the average template waveform may be displayed reduced and enlarged by the approaching and departing correspondence of the two touch points. A user touches a display interface to form two touch points on the display interface, and the average template waveform displayed on the display interface can be correspondingly reduced in response to the approach of the user to the two touch points on the display interface; in response to the two touch points on the display interface being far away from each other by the user, the average template waveform displayed on the display interface can be correspondingly amplified. It is understood that there are various combinations of the scaling corresponding to the preset operation, which are not described herein.

Alternatively, as shown in fig. 5, the waveform display area displaying the waveform of the average template in an enlarged manner may occupy the whole display interface, so as to display the waveform of the enlarged average template through the whole waveform display area, thereby facilitating the user to view the waveform of the average template or perform other operations on the waveform of the average template. At this time, a measuring scale icon can be arranged on the display interface. And clicking the measuring scale icon by the user, displaying the measuring scale at the corresponding position of the average template waveform, and measuring the amplified average template waveform to obtain the characteristic parameter value. For example, the characteristic parameter values may be time limit, amplitude, heart rate, etc.

In some embodiments, the electrocardiograph may also include a recovery icon. The recovery icon may be provided to the display interface. The user can directly restore the average template waveform in the enlarged or reduced state to the original display size by clicking the restore icon. Alternatively, it is also possible to directly restore the average template waveform of the electrocardiographic waveform in the enlarged or reduced state to the original display size when the selection signal of the user for the waveform thumbnail in the waveform selection area is detected again. Wherein, the original display size is the size of the waveform displayed when the waveform thumbnail is initially clicked.

The preset operation can be realized through touch screen operation, cursor control operation, voice control operation and the like. The touch screen operation is a touch operation performed on the display screen, for example, a preset icon on the display screen is touched by a single finger, an average template waveform on the display interface is touched by a double finger, or the display screen is touched by the double finger while the double finger moves away from or close to the display screen. The cursor control operation can be realized by one or more of a keyboard, a remote control rod and a mouse. For example, two keys on the keyboard may be provided as keys for enlarging and reducing the average template waveform, respectively, and when the reduction key is clicked, the average template waveform is displayed in a reduced size, and when the enlargement key is clicked, the average template waveform is displayed in an enlarged size. Similarly, a zoom-in button and a zoom-out button can be arranged on the remote control lever to zoom in and zoom out the average template waveform. In addition, the average template waveform can be selected by the mouse, and the right mouse button is clicked or double clicked to reduce or enlarge the average template waveform for display, which is not described herein again in the detailed description. The voice control operation may be detecting a keyword in the voice data and executing a related zoom control instruction based on the keyword, for example, when the keyword "zoom in" is detected, the average template is displayed in an enlarged manner, and when the keyword "zoom out" is detected, the average template is displayed in a reduced manner.

In this embodiment, by responding to the preset operation performed by the user on the display interface, the average template waveform displayed on the display interface is correspondingly scaled, so that the average template waveform can be conveniently viewed by the user, wherein the waveform can be scaled quickly by detecting the preset operation of the user, and the operation mode is simple.

Referring to fig. 6a to 7, fig. 6a is a schematic flow chart of a third embodiment of the method for measuring electrocardiographic waveform data of the present application, fig. 6b is a schematic partial flow chart of a fourth embodiment of the method for measuring electrocardiographic waveform data of the present application, and fig. 7 is a schematic display interface of electrocardiographic analysis results of the present application. The method of the embodiment may include the steps of:

step S301: the electrocardiograph displays the average template waveform corresponding to the electrocardiographic waveform, and displays at least one datum line at the corresponding position of the average template waveform.

The step S101 and the step S102 in the above embodiment can be referred to as displaying the average template waveform corresponding to the electrocardiograph and how to obtain the average template waveform, which is not described herein again.

Specifically, the electrocardiograph displays an average template waveform corresponding to the electrocardiographic waveform, and displays at least one reference line at a corresponding position of the average template waveform. Wherein the at least one reference line includes at least one of a P reference line, a Q reference line, an S reference line, and a T reference line. The P reference lines further include a P1 reference line and a P2 reference line. The T reference lines further include a T1 reference line and a T2 reference line. Wherein the reference line may be automatically displayed at a corresponding position of the average template waveform after being analyzed through a preset algorithm.

Step S302: in response to a movement operation of the reference line by the user, the position of the reference line on the average template waveform is moved.

The electrocardiograph obtains corresponding measured values according to the position of the reference line on the average template waveform, and then performs electrocardiographic analysis based on the measured values. Therefore, whether the position of the reference line is accurate or not is the key for subsequent measurement and analysis of the electrocardiogram data. The default determined position of the electrocardiograph is not accurate, so that the displayed reference line can move according to the operation of the user, and the user can calibrate the position of the reference line, so that the accuracy of subsequent electrocardiograph data measurement and analysis is ensured.

Specifically, the moving range of the reference line at the feature point in different regions may be as follows:

p1 reference line: the adjusting range of the P wave starting point reference line is between the QRS wave starting point and the P wave end point.

P2 reference line: the range of the P wave end point datum line is from the P wave starting point to the Q datum line.

Q reference line: the range is from the P wave end point to the S point reference line.

S reference line: the range is from the Q datum line to the T wave end datum line.

Reference line of T1: the range of the T wave starting point datum line is from the S datum line to the QRS waveform end point.

Reference line of T2: and the range of the T wave end point reference line is between the T wave starting point and the QRS waveform end point.

And responding to the movement operation of the user on the reference line, and moving the position of the reference line on the average template waveform according to the movement track of the user. Optionally, the electrocardiograph includes a touch display screen, and the display interface is a display interface of the touch display screen. Specifically, it may be that the user touches a certain reference line, and as the touch point moves on the display interface, the position of the reference line on the average template waveform is moved. In other embodiments, voice may be used to control the movement of the reference line, for example, the electrocardiograph may detect that the user clicks a movement icon on the display interface, and then obtain the target position information of the reference line input by the user (e.g., input on the display interface or voice input), or may directly input a movement instruction through voice to control the movement of the reference line, and move the reference line to the target position.

Alternatively, the user may select a plurality of reference lines at the same time, and in response to the user's movement operation on the reference lines, the positions of the plurality of reference lines on the average template waveform are moved at the same time. By the mode, the phenomenon that the distance between a plurality of datum lines is changed due to the fact that a datum line is moved can be avoided, user operation can be simplified, and datum line repositioning efficiency is improved.

Alternatively, the user may move the plural reference lines, respectively, for example, the user may further move the Q reference line, the S reference line, or the T reference line after moving the P reference line to the target position.

Step S303: and carrying out data measurement on the average template waveform based on the moved reference line to obtain at least one characteristic parameter value of the electrocardiographic waveform.

The electrocardiograph in this embodiment can automatically calculate the corresponding characteristic parameter value based on the position of the reference line on the average template waveform.

For example, based on the position of the shifted P-fiducial line on the average template waveform, the PR interval corresponding to the electrocardiographic waveform may be obtained. Based on the location of the shifted Q fiducial line on the average template waveform, at least one of a PR interval, a QRS time limit, a QT interval, and a QTc interval corresponding to the electrocardiographic waveform may be obtained. Based on the position of the shifted S-baseline on the average template waveform, the QRS time limit corresponding to the electrocardiographic waveform may be obtained. Based on the location of the shifted T-fiducial line on the average template waveform, QT intervals and/or QTc intervals corresponding to the electrocardiographic waveform may be obtained.

The PR interval, QRS time limit, QT interval and QTc interval are all characteristic parameter values of the electrocardiographic waveform and are also important basis for clinical diagnosis of doctors. When a doctor thinks that the position of a datum line is inaccurate, the doctor can adjust the position of the datum line by moving the datum line so as to obtain a correct characteristic parameter value.

In the embodiment, an average template waveform corresponding to the electrocardiograph is displayed through the electrocardiograph, at least one datum line is displayed at a corresponding position of the average template waveform, and the position of the datum line on the average template waveform is moved through the moving operation of a user on the datum line, wherein the user can adjust the position of the datum line according to actual conditions.

As shown in fig. 6b, in other embodiments, step S303 may be followed by:

step S304: at least one characteristic parameter value of the electrocardiographic waveform is displayed.

As shown in fig. 2, at least one characteristic parameter value may be displayed in a parameter display area 203 of the display interface, and at least one characteristic parameter value may also be displayed in a waveform display area 201 of the display interface. The parameter display area 203 can be set according to actual conditions. In response to the movement operation of the user on the reference line, the position of the reference line on the average template waveform can be acquired in real time, and at least one characteristic parameter value of the obtained electrocardiographic waveform is displayed in real time based on the position, namely the characteristic parameter value changes correspondingly along with the movement of the reference line.

For example, characteristic parameter values such as PR interval, QRS time limit, QT interval, QTc interval, etc. may be displayed in the parameter display area 203 of the display interface, and characteristic parameter values such as time limit (T), amplitude (V), and heart rate (bpm) may also be displayed in the waveform display area 201 of the display interface. And if the characteristic parameter value displayed on the display interface is not in the corresponding normal characteristic parameter range, marking the characteristic parameter value. For example, when the heart rate of an adult is 60-100 times, the normal value range of the QT interval is 0.44 s-0.36 s, if the QT interval of the average template waveform of the adult displayed on the display interface is 0.56s and is not in the normal value range, the characteristic parameter value is displayed in red, so that the user is reminded that the characteristic parameter value is not in the normal value range.

Step S305: and detecting a trigger signal of a user to an analysis icon on the display interface, and analyzing the characteristic parameter value to obtain an initial electrocardio analysis result.

Specifically, after the datum line is repositioned, when it is detected that the user clicks the analysis icon on the display interface, the electrocardiograph can automatically analyze the characteristic parameter value to obtain an initial electrocardiogram analysis result. Alternatively, as shown in fig. 7, the initial electrocardiographic analysis result may be displayed on another display interface.

Step S306: and detecting a trigger signal of a user to the result modification icon on the display interface, and displaying a modification input area containing the initial electrocardio analysis result.

Step S307: and updating the content in the modification input area according to the input information of the user in the modification input area.

Step S308: and detecting a trigger signal of the user for confirming the modification icon on the display interface, acquiring the current content in the modification input area, and taking the current content as a final electrocardio analysis result.

The user can judge the correctness of the initial electrocardiogram analysis result automatically generated by the electrocardiogram machine according to the average template waveform and the reference line displayed in the display interface and the corresponding obtained characteristic parameter values. When the user thinks that the initial electrocardio analysis result automatically generated by the electrocardiograph is incorrect, the user can directly modify the initial electrocardio analysis result on the electrocardiograph to obtain the correct electrocardio analysis result. Optionally, the electrocardiograph may store the initial electrocardiographic analysis result and the user-modified electrocardiographic analysis result for subsequent checking, retrieval, or modification. Furthermore, the electrocardiograph can store information such as modified people, modified time, modified places and the like according to a certain sequence, so that subsequent checking, calling or modifying can be facilitated.

Before the current content is used as a final electrocardio analysis result, the method further comprises the following steps: displaying a signature input area on a display interface; acquiring a touch point moving trace of a user in a signature input area as a signature to be verified; acquiring whether a pre-stored signature of a current login account is matched with a signature to be verified; if so, taking the current content as a final electrocardio analysis result; and if not, not taking the current content as the final electrocardio analysis result.

Optionally, when the signature to be verified is not matched with the pre-stored signature of the current login account, prompt information can be sent to the user of the current login account to prompt the user that the electrocardiograph is abnormally modified to obtain the electrocardiograph analysis result. For example, the electrocardiograph may remind the user of the current account through a short message, a telephone call, or a prompt tone of an electrocardiograph matching device carried by the user. In addition, because the time for generating the signature to be verified and the pre-stored signature by the user who logs in the account currently is different or other reasons, the signature to be verified and the pre-stored signature are different, so that the signature of the user who logs in the account currently to be verified may not be matched with the pre-stored signature. The electrocardiograph can further comprise a camera module, when the pre-stored signature of the current login account is not matched with the pre-stored signature, the electrocardiograph automatically starts the camera module to obtain the characteristic information of the user who modifies the electrocardio analysis result, and the characteristic information of the user who modifies the electrocardio analysis result is matched with the pre-stored characteristic information of the current login account, and if the matching is successful, the current content is used as the final electrocardio analysis result; if the matching is unsuccessful, the current content is not used as the final electrocardiogram analysis result, and further, the obtained characteristic information of the user who currently modifies the electrocardiogram analysis result can be sent to the user who currently logs in the account and stored in the electrocardiogram machine for later-stage examination. The feature information may be face image information or iris information. Through the method, the situation that a user who is not logged in the account currently falsifies the final electrocardio analysis result can be avoided.

It can be understood that there is no certain precedence relationship between the step of displaying at least one characteristic parameter value of the electrocardiographic waveform and the step of obtaining the electrocardiographic analysis result, and the step can be selected according to actual conditions.

Referring to fig. 8, fig. 8 is a schematic flow chart illustrating a fifth embodiment of the method for measuring electrocardiographic waveform data according to the present application.

Step S401: the electrocardiograph displays the average template waveform corresponding to the electrocardiographic waveform, and displays at least one datum line at the corresponding position of the average template waveform.

The electrocardiograph displays the average template waveform corresponding to the electrocardiographic waveform and how to obtain the average template waveform, refer to steps S101 and S102 in the above embodiment, and displays at least one reference line at a corresponding position of the average template waveform, refer to step S301 in the above embodiment, which is not described herein again.

Step S402: and in response to a first preset operation of the user on the average template waveform, amplifying and displaying the average template waveform, and correspondingly displaying the datum line on a corresponding position of the amplified average template waveform.

The electrocardiograph may include a touch screen display, and the average template waveform may be magnified in response to user manipulation of a display interface of the touch screen display. Specifically, the first preset operation may include clicking a preset icon on the display interface or clicking an average template waveform displayed on the display interface, and touching the display interface to form two touch points that are going far apart on the display interface.

Specifically, when the first preset operation is to click a preset icon on the display interface or click an average template waveform displayed on the display interface, the enlarging and displaying of the average template waveform in response to the first preset operation of the user on the average template waveform may include: and if the preset icon or the average template waveform is detected to be clicked, amplifying and displaying the average template waveform according to the preset unit amplification factor. The preset icon may be disposed on a display interface of the electrocardiograph or other devices connected to the electrocardiograph, for example, the preset icon is disposed on the display interface of the electrocardiograph. The preset unit magnification may be set according to actual needs, and the preset unit magnification is, for example, but not limited to, 1 time, 3 times, 10 times, and the like. In an application scene, a user clicks a preset icon, when the electrocardiogram machine detects that the preset icon is clicked, the average template waveform is amplified and displayed according to the preset 3-time amplification factor, when the preset icon is detected to be clicked again, the average template waveform which is amplified by 3 times is continuously amplified and displayed according to the preset 3-time amplification factor, and at the moment, the average template waveform displayed on the display interface is 9 times of the original average template waveform. It will be appreciated that the amplification of the waveform may be within a certain predetermined range. When the user clicks the preset icon on the display interface once or more or clicks the average template waveform displayed on the display interface once or more, the average template waveform displayed on the display interface is amplified to the amplification threshold, the clicking of the preset icon on the display interface or the clicking of the average template waveform displayed on the display interface is continuously detected, the average template waveform displayed on the display interface is not amplified any more, or the average template waveform displayed on the display interface is restored to the original size.

When the first preset operation is to double-click the average template waveform displayed on the display interface, the enlarging and displaying of the average template waveform in response to the first preset operation of the user on the average template waveform may include: acquiring the time difference between two times of clicking the average template waveform; determining a magnification based on the time difference; and amplifying and displaying the average template waveform according to the amplification factor. Alternatively, the larger the time difference, the smaller the corresponding magnification. Before determining the amplification factor based on the time difference, establishing a corresponding relation between the time difference and the amplification factor or between the time difference range and the amplification factor. For example, the time difference is 0.1s, 0.5s, 1s, and the magnification is 10 times, 5 times, 1 time, respectively. If the time difference between the two clicks of the average template waveform is detected to be 0.5s, the average template waveform is correspondingly amplified by 5 times. For another example, the time difference ranges are 100ms to 0.1s, 0.1s to 0.5s, and 0.5s to 1s, and the corresponding magnification is 8 times, 4 times, and 2 times, respectively, where each time difference range does not include the right endpoint value of the range. And if the time difference between the average template waveforms of two clicks is detected to be 0.5s, and the 0.5s belongs to the time difference range of 0.5 s-1 s, correspondingly amplifying the average template waveform by 2 times. It will be appreciated that the amplification of the waveform may be within a certain predetermined range. When the average template waveform displayed on the display interface is amplified to the amplification threshold value in response to one or more times of double-clicking of the average template waveform displayed on the display interface by the user, the average template waveform displayed on the display interface is continuously detected, and the average template waveform displayed on the display interface can be not amplified any more or is restored to the original size.

When the first preset operation is to touch the display interface to form two touch points which are far away on the display interface, the enlarging and displaying of the average template waveform in response to the first preset operation of the user on the average template waveform may include: acquiring the speed of the two touch points when the two touch points are far away and/or the distance when the two touch points stop far away; determining a magnification factor based on the speed and/or distance; and amplifying and displaying the average template waveform according to the amplification factor. The electrocardiograph can acquire the speed when the two touch points are far away and the distance when the two touch points stop being far away. Optionally, the faster the speed and/or the greater the distance the greater the corresponding magnification. Before determining the magnification factor based on the speed and/or the distance, establishing a corresponding relation between the speed and the magnification factor and a corresponding relation between the distance and the magnification factor. Specifically, the pre-establishing of the corresponding relationship according to the requirement includes: the speed is 10cm/s, 1cm/s and 1mm/s, and the corresponding magnification is 9 times, 6 times and 3 times; the distances are 0.1cm, 1cm, 2cm, and the corresponding magnifications are 1, 2, and 3 times. For example, if the magnification is determined only from the velocity, the corresponding magnification is 6 times when the velocity at which the two touch points are separated is determined to be 1cm/s based on the correspondence of the velocities. For another example, if the magnification is determined only from the distance, the corresponding magnification is 3 times when the distance between the two touched points is determined to be 2cm when the two touched points stop moving away based on the correspondence relationship of the distances. For another example, it is known that when the magnification factor is determined from the speed and the distance, the distance between two touched points is 1cm when the two touched points are separated at a speed of 1cm/s and the separation is stopped, and the corresponding magnification factor is 6 × 2 to 12, based on the correspondence between the speed and the distance.

In some embodiments, the electrocardiograph may also include a recovery icon. The recovery icon may be provided to the display interface. The user can directly restore the average template waveform in the enlarged state to the original display size by clicking the restore icon. Alternatively, it is also possible to directly restore the average template waveform of the electrocardiographic waveform in the enlarged state to the original display size when the selection signal of the user for the waveform thumbnail in the waveform selection area is detected again. Wherein, the original display size is the size of the waveform displayed when the waveform thumbnail is initially clicked.

The preset operation can be realized through touch screen operation, cursor control operation, voice control operation and the like. For a specific implementation, reference may be made to the description related to the above embodiments, which is not described herein again.

Specifically, when the average template waveform is displayed in an enlarged manner, the reference line may be correspondingly displayed at a corresponding position of the enlarged average template waveform. For example, the original position information of the reference line on the average template waveform before enlargement may be obtained, and the product of the original position information and the current magnification of the average template waveform may be taken as the latest position of the reference line on the enlarged average template waveform, and the reference line may be displayed at the latest position.

It is understood that in the embodiment of displaying the average template waveform in an enlarged manner described herein, since the waveform may not be displayed in the original waveform display area after being enlarged, the enlarged full waveform may be displayed in the waveform display area, and when a sliding operation of the displayed waveform by the user, for example, a sliding operation to the right is detected, the waveform on the right side of the enlarged waveform displayed before is displayed in the waveform display area, and if the sliding operation to the left is detected, the waveform on the left side of the enlarged waveform displayed before is displayed in the waveform display area. Alternatively, instead of displaying only the enlarged band in the waveform display area, the enlarged waveform may be displayed on the entire display interface (as shown in fig. 5).

Step S403: and adjusting the position of the reference line in the amplified average template waveform in response to a second preset operation of the user on the reference line.

The second preset operation may be the moving operation in the above embodiment, or a clicking operation of a moving icon on the display interface by a user, or voice control by the user, for example, when the electrocardiograph detects that the user clicks the moving icon on the display interface, acquires target position information of a reference line input by the user (for example, input in the display interface or input by voice), and moves the reference line to a target position.

For example, the position of the reference line on the amplified average template waveform is moved according to the movement trajectory of the user. The waveform is amplified, and the reference line can be quickly and accurately moved to the target position by moving the reference line on the amplified average template waveform. In other embodiments, the waveform of the average template may be automatically amplified when the second preset operation of the user on the reference line is detected, and the user may adjust the position of the reference line in the amplified waveform of the average template according to the amplified waveform of the average template. By the mode, the average template waveform can be amplified while the reference line is moved, the process is rapid, and the waveform does not need to be amplified manually by a user.

Optionally, after the position of the reference line in the amplified average template waveform is adjusted, whether the current display interface is locked may be determined according to a selection of the user, and after the current display interface is locked, the content of the display interface is not changed by touching the current display interface again by the user. In addition, the user can unlock the current display interface as required. The steps can be realized through shortcut keys set by a user, and the shortcut keys can be arranged on the display interface.

Step S404: and carrying out data measurement on the average template waveform based on the adjusted reference line to obtain at least one characteristic parameter value of the electrocardiographic waveform.

For the description of this step, reference may be made to the description of the corresponding position in step S303 of the above embodiment. Of course, in other embodiments, the steps S404 may further include the steps S304-S308 of the above embodiments, which are not described herein again.

In this embodiment, the electrocardiograph may display an average template waveform corresponding to the electrocardiographic waveform, display at least one reference line at a corresponding position of the average template waveform, amplify and display the average template waveform through a first preset operation, correspondingly display the reference line at a corresponding position of the amplified average template waveform, and then adjust a position of the reference line at the amplified average template waveform through a second preset operation, wherein, because the waveform of the average template is amplified and displayed, a user may find a target position for the adjustment of the reference line, and further accurately measure a relevant parameter of the average template waveform based on the adjusted reference line, so as to obtain at least one characteristic parameter value of the electrocardiographic waveform, so that the characteristic parameter value is closer to the correct characteristic parameter value.

Referring to fig. 9 to 10b, fig. 9 is a schematic flowchart of a sixth embodiment of a data measurement method for electrocardiographic waveforms of the present application, fig. 10a is another schematic diagram of a display interface after an enlarged average template waveform of a lead ii of the present application, and fig. 10b is another schematic diagram of a display interface after an enlarged average template waveform of a lead ii of the present application.

Step S501: the electrocardiograph displays the average template waveform corresponding to the electrocardiographic waveform, and displays at least one datum line at the corresponding position of the average template waveform.

Step S502: and determining the area to be amplified on the display interface based on the preset area information or the area information selected by the user.

In this embodiment, the area to be enlarged on the display interface may be set by default or by a user. The region to be amplified is used for selecting the waveform for subsequent amplification display, namely, the waveform not in the region to be amplified is not subjected to subsequent amplification display. Therefore, in the embodiment, the average template waveform displayed on the display interface can be partially enlarged according to the setting of the region to be enlarged.

Specifically, the preset area information may be position information of a certain area in a preset display interface. The user-selected region information may include position information of a region selected by the user on the display interface or position information input by the user. The preset area information or the user-selected area information may be the entire waveform display area or a part of the waveform display area. After the region to be amplified is determined, the electrocardiograph only amplifies and displays the average template waveform displayed in the region to be amplified.

Step S503: and responding to a first preset operation of the user on the average template waveform, and acquiring the average template waveform in the region to be amplified as the waveform to be amplified.

The steps S503, S504, S505 and S506 of this embodiment may be used to implement the steps of displaying the average template waveform in an enlarged manner and displaying the reference line on the corresponding position of the enlarged average template waveform in response to the first preset operation of the average template waveform by the user.

For the explanation of the first preset operation, refer to the explanation of the corresponding position in step S402. For example, with continued reference to fig. 2, the user only needs to perform the enlarged display on the T1-T2 segment waveform, and then the user may select the region where the T1-T2 segment waveform is located on the display interface as the region to be enlarged 204, so that when the user performs the first preset operation (e.g., clicks on the average template waveform) on the average template waveform, the T1-T2 segment waveform in the region to be enlarged 204 may be obtained as the waveform to be enlarged.

Step S504: and amplifying and displaying at least part of wave bands of the waveform to be amplified.

After the waveform to be amplified is determined, at least part of the wave bands of the waveform to be amplified can be amplified and displayed. Wherein, the amplified wave band can be displayed in the waveform display area of the display interface, as shown in fig. 10a, after the T1-T2 segment waveform in the region 204 to be amplified is obtained as the waveform to be amplified, the amplified T1-T2 segment waveform can be displayed on the waveform display region 202. Of course, the amplified wavelength band may be displayed only in the region 204 to be amplified, for example, at least a part of the wavelength bands of the waveforms T1-T2 may be amplified and displayed in the region 204 to be amplified. Or, the amplified wave band may also be displayed on the complete display interface, as shown in fig. 10b, if the user selects the region where the P1-T2 segment of the waveform display region is located as the region to be amplified, the P1-T2 segment of the waveform may be amplified and displayed.

It is understood that when the magnification is large, the waveform to be magnified cannot be displayed in its entirety on the display interface, so that it is considered that the magnified waveform cannot be displayed in its entirety, and it is considered that a fractional band of the waveform to be magnified is selected for magnified display. Specifically, the band where the reference line selected in advance by the user in the waveform to be amplified is located may be selected for amplification display, or the middle band of the waveform to be amplified may be selected for amplification display, and the specific band selection mode may be set according to actual requirements, which is not limited herein. It should be noted that the reference line selected in advance by the user is the reference line in the waveform to be amplified.

The embodiment specifically explains the example of selecting the band in which the reference line selected in advance by the user in the waveform to be amplified is located to perform amplification display. In an embodiment, before this step S501, the method further includes, in response to a user selecting operation on at least one reference line, determining that the at least one reference line is a first target reference line; the step S504 correspondingly specifically includes: and amplifying and displaying the wave band containing the first target datum line in the waveform to be amplified. One of the situations is: and in response to the selection operation of selecting one reference line by the user, taking the reference line as a first target reference line, and amplifying and displaying the wave band containing the first target reference line in the waveform to be amplified, wherein the wave band containing the first target reference line can be a wave band in a preset time range containing the first target reference line. For example, in response to a user' S selection operation of the S reference line, the S reference line is set as a first target reference line, and a band in a range of 10ms including the S reference line is displayed in an enlarged manner. The other situation is that: and in response to the selection operation of selecting at least two reference lines by a user, taking the at least two reference lines as a first target reference line, and amplifying and displaying a wave band containing the first target reference line in the waveform to be amplified, wherein the wave band containing the first target reference line can be a wave band between the first reference line and the last reference line or a wave band in a preset time range containing the first reference line and the last reference line. The preset time range can be selected according to actual conditions. For example, in response to a user' S selection operation of the P1 reference line, the Q reference line, and the S reference line, the P1 reference line, the Q reference line, and the S reference line are taken as first target reference lines, the P1 reference line and the S reference line are respectively head-to-tail reference lines, and a band between the P1 reference line and the S reference line or a band within 20ms including the P1 reference line and the S reference line is displayed in an enlarged manner. The selection operation can be realized through a touch screen, a cursor or voice input and the like. For example, by touching the Q reference line, the Q reference line is selected. By determining the first target datum line and amplifying and displaying the wave band containing the first target datum line, namely determining the amplification wave band to be displayed currently through the selected datum line, the first target datum line can be moved in a targeted manner in subsequent operations, and the datum line required to be repositioned is not required to be searched after the amplified waveform is displayed, so that the user operation can be simplified.

Step S505: and correspondingly displaying the datum line on the corresponding position of the amplified average template waveform.

The electrocardiograph can acquire the original position of the reference line on the waveform to be amplified before amplification, determine the corresponding position of the original position on the amplified waveform to be amplified, and display the reference line on the corresponding position. For example, after the waveform to be amplified is amplified by 2 times, the original position of the S reference line is also amplified by two times, so that the corresponding position of the S reference line on the waveform to be amplified after amplification is determined to be the 10ms position, and the reference line is displayed on the 10ms position.

In one case, because the position of the reference line which the user needs to move at present deviates from the target position far, when the user determines the region to be amplified according to the target position and amplifies and displays the region to be amplified, the reference line which needs to move deviates far, so that the display cannot be performed on the amplified current display interface, the reference line can be selected only by moving the region to be amplified, and then the reference line and the region to be amplified are moved to the target position. Therefore, the present embodiment may further include, before step S501: and in response to the user's selection operation of the at least one reference line, determining the at least one reference line as a second target reference line. Correspondingly, the displaying the reference line at the corresponding position of the amplified average template waveform correspondingly comprises: and displaying a second target datum line on a second preset position of the currently displayed amplified average template waveform. Wherein, the second preset position can be the middle position or any position. When the second target reference line includes only one reference line, the reference line may be directly displayed at the preset position. When the second target reference line includes a plurality of reference lines, the plurality of reference lines may be respectively displayed at different preset positions or may be arranged at certain intervals at a certain preset position. The second target reference line may be always displayed on the currently displayed enlargement band. For example, as shown in fig. 2, the user needs to move the Q reference line to the region 204 to be magnified, but the Q reference line is far from the region to be magnified, so that the Q reference line cannot be displayed on the current display interface after being magnified (as shown in fig. 10 a), but before performing the first preset operation, the Q reference line may be selected, and after the user performs the first preset operation to magnify and display the band in the region to be magnified, the Q reference line may be directly displayed at the middle position or any position of the magnified band, so that the user can perform subsequent operations on the Q reference line.

Step S506: and displaying a waveform reduction diagram containing a complete average template waveform at a first preset position of the display interface, and displaying a region frame corresponding to a region to be amplified at a corresponding position in the waveform reduction diagram.

After the step S504 is performed to magnify and display at least a partial band of the waveform to be magnified, in order to facilitate the user to reposition a new region to be magnified, a waveform reduction diagram including a complete average template waveform may be displayed at a first preset position of the display interface.

The first preset position can be set as required, for example, the first preset position can be an upper right corner, an upper left corner, a lower right corner, a lower left corner, or the like.

As shown in fig. 10, a waveform reduction map 901 containing a complete average template waveform is displayed at the upper left corner of the display interface, and a region box 902 corresponding to a region to be enlarged is displayed at a corresponding position in the waveform reduction map 901.

As shown in fig. 2, the waveform thumbnail may also be a waveform thumbnail in the waveform selection area 201, and an area frame 903 corresponding to an area to be enlarged is displayed at a corresponding position in the waveform thumbnail, which is not described herein again.

Step S507: and detecting the movement operation of the user on the area frame in the waveform reduced image, and updating the position of the area to be amplified based on the position of the area frame in the waveform reduced image after the movement.

The moving operation may be to press and hold the area frame and drag the area frame in the waveform reduction image, that is, to move the position of the area frame in the waveform reduction image. Or, the display interface further includes a slider area, and the moving operation may be dragging a slider in the slider area, and when it is detected that the slider in the slider area is dragged, the position of the corresponding moving area frame in the waveform minification map is detected. It is understood that the region enclosed by the region frame is the region to be enlarged.

Specifically, it is detected that the user presses the area frame, and drags the area frame or drags the slider in the slider area in the waveform reduction image, and based on the position of the area frame in the waveform reduction image after movement, the position of the area to be enlarged is updated.

Step S508: and acquiring the updated average template waveform in the region to be amplified as a new waveform to be amplified, and performing amplification display and subsequent steps on at least part of wave bands of the waveform to be amplified again.

Specifically, at least part of wave bands of the updated average template wave in the region to be amplified are amplified and displayed, and the reference line is correspondingly displayed at the corresponding position of the amplified average template wave. The above steps can be executed in detail with reference to the above description.

In an application scenario, when a part of the average template waveform displayed in the region to be enlarged does not include a band that a current user needs to adjust, the band that needs to be adjusted can be quickly found by moving a region frame in the waveform minification map. Of course, a touch point may also be generated by touching the display interface, and the average template waveform displayed in the display interface is adjusted according to the moving track of the touch point corresponding to the moving average template waveform. For example, the average template waveform displayed in the current display interface is a P2-Q segment waveform, and when the touch point slides to the left, the average template waveform is correspondingly slid to the left, so that QS segment waveforms are displayed.

Step S509: and adjusting the position of the reference line in the amplified average template waveform in response to a second preset operation of the user on the reference line.

Step S510: and carrying out data measurement on the average template waveform based on the adjusted reference line to obtain at least one characteristic parameter value of the electrocardiographic waveform.

For the descriptions of steps S509 and S510, reference may be made to the descriptions of corresponding positions in step S403 and step S303, respectively, in the above embodiments. Of course, in other embodiments, the steps S510 may further include the steps S304-S308 of the above embodiments, which are not described herein again.

In the embodiment, the flexibility of amplifying and displaying the average template waveform can be improved by setting the region to be amplified and only amplifying the average template waveform in the region to be amplified, and the accuracy of positioning the reference line can be improved as only the wave band required to be adjusted can be amplified and displayed; secondly, the amplification wave band to be displayed at present can be quickly determined by the selected reference line; and thirdly, after the waveform to be amplified in the region to be amplified is amplified and displayed, the position of the region to be amplified can be changed by changing the position of the region frame in the waveform reduction image, so that the waveform to be amplified in the region to be amplified can be updated quickly and accurately, and the waveform to be amplified is amplified and displayed.

Referring to fig. 11, fig. 11 is a schematic diagram of a frame of an electrocardiograph according to an embodiment of the present application. The electrocardiograph 100 comprises a processor 101 and a memory 102 coupled to each other, and the processor 101 is configured to execute program instructions stored in the memory 102 to implement the steps in any of the above-mentioned method embodiments or the steps correspondingly executed by the electrocardiogram in any of the above-mentioned method embodiments. The electrocardiograph may further include a touch screen, a printing component, a communication circuit, etc. according to requirements, in addition to the processor and the memory, which is not limited herein.

In particular, the processor 101 is configured to control itself and the memory 102 to implement the steps in any of the above-described embodiments of the multi-lead electrocardiographic data acquisition method. Processor 101 may also be referred to as a CPU (Central Processing Unit). The processor 101 may be an integrated circuit chip having signal processing capabilities. The Processor 101 may also be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. In addition, the processor 101 may be commonly implemented by a plurality of integrated circuit chips.

Referring to fig. 12, fig. 12 is an exploded view of another embodiment of the electrocardiograph of the present application. As shown in fig. 12, the electrocardiograph includes a host 10, the host 10 includes a housing 11 and a display 12 embedded in the housing, the host 11 may include the processor and the memory shown in fig. 9, and may further include a communication circuit for communicating with an external device, wherein the communication circuit may include at least one of: wifi communication circuit, bluetooth communication circuit, cellular mobile communication circuit, etc.

In one implementation, the display 12 is a touch screen, so that a user can interact with the electrocardiograph by touching the display 12. For example, a data acquisition icon is displayed on a display interface of a touch display screen of the electrocardiograph, and when a touch signal of a user to the data acquisition icon is detected, electrocardiograph data acquisition is executed. The electrocardiograph can also utilize the touch display screen to realize the interactive operation with the user in any embodiment.

The housing 11 includes a first side 111 and a second side 112 opposite to each other, the first side 111 is used for connecting with a peripheral device, and in an implementation scenario, the peripheral device may include any one of the handle 20 and the printing assembly 30. In a specific implementation scenario, when the peripheral device is connected to the first side portion 111, the second side portion 112 and the peripheral device are simultaneously abutted against the supporting surface, so that a predetermined angle is formed between the plane where the display screen 12 is located and the supporting surface, so as to facilitate a user to view an interface displayed on the display screen 12, or to touch the display screen 12, where the predetermined angle may be set to 30 degrees, 35 degrees, and the like, and the embodiment is not limited herein.

In addition, in order to conveniently and quickly realize the connection between the host computer 10 and the peripheral device, connectors matched with each other may be further provided on the host computer 10 and the peripheral device. It includes handle 20 to exemplify to add the device outward, and constant head tank 113 has all been seted up to host computer 10 near the both sides of first side 111, and handle 20 includes the first location arm 21 of two relative settings, and first location arm 21 matches each other with constant head tank 113 to can insert constant head tank 113 with first location arm 21, realize dismantling between host computer 10 and the handle 20 and be connected. In an implementation scenario, the first side portion 111 may further be provided with a plurality of clamping holes (not shown), the handle 20 further includes a first mounting portion 22 disposed between the two first positioning arms 21, and the first mounting portion 22 is provided with a first clamping column 221 matched with the clamping holes. In one implementation scenario, in order to facilitate the user to carry the host 10 through the handle 20, the handle 20 further includes a handle 23, and the handle 23, the two first positioning arms 21 and the first mounting portion 22 enclose and form a through slot 24 for the user to hold, so that the user can conveniently carry the host 10. Alternatively, when the peripheral device includes the printing assembly 30, the printing assembly 30 may include two oppositely disposed second positioning arms 31, similar to the handle 20, and the second positioning arms 31 and the positioning slots 113 are matched with each other, so that the second positioning arms 31 can be inserted into the positioning slots 113 to realize the detachable connection between the host computer 10 and the printing assembly 30. In one implementation scenario, the printing assembly 30 further includes a second mounting portion 32 disposed between the two second positioning arms 31, and the second mounting portion 32 is provided with a second clamping column 321 matching with the clamping hole.

In addition, the main body 10 further includes a first collecting interface 114, a second collecting interface 115, and a switch button 116 disposed on the housing 11, and the second side portion 112 further has a sound hole 1121, and a scanning head 1122 for scanning a barcode. In addition, the host 10 may further include at least one of a power adapter interface, an ethernet interface, a USB (Universal Serial Bus) interface, a SD (Secure Digital) memory card slot, a SIM (Subscriber identity Module) card slot, and an NFC (Near Field Communication) recognizer.

In addition, the Operating System (OS) of the host 10 may be based on Linux, Windows, or the like, and the embodiment is not particularly limited herein.

The handle 20 and the printing assembly 30 can be configured according to actual needs. For example, for a scene that is frequently carried and used outdoors, the handle 20 and the printing component 30 may be additionally reconfigured on the basis of the host 10, and for a scene that is used inside a hospital, the printing component 30 may be additionally reconfigured on the basis of the host 10, or when the host 10 is connected to an external printing device through a network, the printing component 30 may not be additionally configured, which is not illustrated herein.

It is understood that the electrocardiograph may be further provided with at least one of the following components: the camera shooting assembly is used for image or video acquisition and is matched with a communication circuit to realize video interaction with a far end, the GPS positioning group is used for acquiring the position of the electrocardiograph, and the biological characteristic acquisition assembly is used for acquiring the biological characteristics of a user (such as a fingerprint acquisition assembly for acquiring fingerprints and a camera shooting assembly for acquiring pupils).

Referring to fig. 13, fig. 13 is a schematic structural diagram of an embodiment of a computer-readable storage medium 300 of the present application, where program instructions 301 are stored on the computer-readable storage medium 300, and when the program instructions 301 are executed by a processor, the steps of any one of the embodiments are implemented.

The computer-readable storage medium 300 may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and may also be a medium that stores the program instructions 301, or may be a server that stores the program instructions 301, and the server may send the stored program instructions 301 to another device for execution, or may execute the stored program instructions 301 by itself.

The above embodiments are merely examples, and not intended to limit the scope of the present application, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present application, or those directly or indirectly applied to other related arts, are included in the scope of the present application.

Claims

1. A method of processing an electrocardiographic waveform, comprising:

processing the electrocardiograph waveform to obtain an average template waveform corresponding to the electrocardiograph waveform;

displaying the average template waveform on a display interface;

and responding to preset operation of a user on the display interface, and correspondingly zooming the average template waveform displayed on the display interface.

2. The method of claim 1,

the step of processing the electrocardiographic waveform to obtain an average template waveform corresponding to the electrocardiographic waveform comprises:

obtaining a plurality of valid QRS waveforms on the electrocardiographic waveform;

and obtaining an average template waveform of the electrocardiographic waveform based on the amplitudes of the corresponding points of the plurality of effective QRS waveforms.

3. The method of claim 2,

the step of obtaining an average template waveform of the electrocardiographic waveform based on the amplitudes of the corresponding points of the plurality of effective QRS waveforms comprises:

obtaining an average value of the amplitudes of the corresponding points on the plurality of effective QRS waveforms as the amplitudes of the corresponding points on the average template waveform; alternatively, the first and second electrodes may be,

and sequencing the effective QRS waveforms according to the amplitude values, and taking the effective QRS waveforms in the middle position as average template waveforms corresponding to the electrocardiogram waveforms.

4. The method of claim 1,

processing each lead electrocardiographic waveform in the multi-lead electrocardiographic waveforms to obtain an average template waveform corresponding to each lead electrocardiographic waveform;

the step of displaying the average template waveform on a display interface includes:

displaying an average template waveform of at least one lead electrocardiographic waveform in a waveform display area of the display interface based on a selection operation of a user on the display interface; and the baseline position of the average template waveform corresponding to each lead to be displayed is the same.

5. The method of claim 4, wherein the step of displaying an average template waveform of at least one lead electrocardiographic waveform in a waveform display area of the display interface based on a user selection operation on the display interface comprises:

displaying a plurality of waveform thumbnails in a waveform selection area of the display interface, wherein the plurality of waveform thumbnails comprise an average template waveform thumbnail of each lead electrocardiographic waveform and thumbnails obtained by superposing average template waveforms of all lead electrocardiographic waveforms;

and when a selection signal of a waveform thumbnail from the waveform selection area by a user is detected, displaying an average template waveform corresponding to the selected waveform thumbnail in the waveform display area.

6. The method of claim 1,

the preset operation is at least one of the following: clicking a preset icon on the display interface, clicking an average template waveform displayed on the display interface, double clicking the average template waveform displayed on the display interface, and touching the display interface to form two touch points which are close to or far away from each other on the display interface.

7. The method of claim 1, wherein after the displaying the averaged template waveform on a display interface, the method further comprises:

displaying at least one reference line at a corresponding position of the average template waveform on the display interface; wherein the at least one datum line comprises at least one of a P datum line, a Q datum line, an S datum line and a T datum line;

responding to the movement operation of the user on the reference line, and moving the reference line according to the movement track of the user;

and obtaining and displaying the characteristic parameter value corresponding to the electrocardiographic waveform based on the position of the moved datum line on the average template waveform.

8. The method of claim 7,

after the step of obtaining and displaying the characteristic parameters of the corresponding electrocardiographic waveform based on the position of the shifted reference line on the average template waveform, the method further includes:

and detecting a trigger signal of the user to the analysis icon on the display interface, and analyzing the characteristic parameter value to obtain an electrocardio analysis result.

9. An electrocardiograph, comprising:

a processor and a memory coupled to each other, the processor being configured to execute program instructions stored by the memory to implement the steps in the method of any one of claims 1-8.

10. A computer-readable storage medium, characterized in that the medium has stored thereon program instructions which, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 8.