JP2019136162A - Electrocardiographic device - Google Patents

Abstract

To provide an electrocardiographic device capable of performing analysis on the basis of an appropriate electrocardiogram.SOLUTION: Propriety determination means 16 determines whether or not proper measurement has been carried out on the basis of an electrocardiographic waveform upon receipt of an electrocardiographic waveform from electrodes 1, 1 ... Stability propriety determination means 4 calculates a fluctuation amount of a baseline of each beat with regard to an electrocardiographic waveform of a proper beat in a propriety determination section. A stability level is imparted to each proper beat according to the fluctuation amount of the baseline of each beat. Propriety output means 6 outputs an output to the effect of improperness from a propriety output unit 8 if there is no propriety determination section from the start of the measurement to the present time. If there is a propriety determination section, the propriety output means outputs the highest stability level of each propriety determination section from the propriety output unit 8. Referring to the output of the propriety output unit 8, an operator directs the start of an analysis output to start reception means 10. Analysis output means 12 calculates and outputs findings of the Minnesota code, etc. on the basis of an electrocardiographic waveform in the propriety determination section. An average electrocardiographic waveform and its waveform feature amount only by an individual beat of the electrocardiographic waveform in the propriety determination section are calculated and output.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electrocardiograph, and more particularly to an analysis in a section where appropriate measurement is performed.

  When measuring an electrocardiogram, it is important to use data measured at rest and without the influence of body movement. As is the case with humans, it is important whether or not the acquired electrocardiogram is suitable for analysis when measuring the electrocardiogram of an animal.

  For example, Patent Document 1 discloses an apparatus that detects a change in resistance value due to electrode contact status and determines whether there is a resistance value suitable for measurement. If the resistance value is not suitable for measurement, a message is notified so that useless analysis is not performed.

Patent 6033644

  However, in the conventional technology as described above, it has not been possible to find a case where the measurement waveform is inappropriate due to body movement or the like while the electrodes are properly mounted.

  In addition, since the criteria for determining which section of the electrocardiogram is more preferable for the analysis is not shown, the most preferable section of the electrocardiogram could not be used.

  Furthermore, even if there is a more preferable electrocardiogram from the start of measurement to the present, the current electrocardiogram has to be analyzed.

  An object of the present invention is to provide an electrocardiogram measuring apparatus that solves at least one of the problems as described above and can perform analysis based on an appropriate electrocardiogram.

  The features that can be applied independently of the present invention are listed below.

(1) (2) An electrocardiograph according to the present invention acquires an electrocardiogram signal from an electrode in contact with a measurement target, and determines whether or not appropriate measurement has been performed based on the electrocardiogram signal. Appropriateness determination means, appropriateness output means for outputting the appropriateness determination result by the appropriateness determination means to the output unit, and analysis for outputting the analysis output of the electrocardiogram signal appropriately measured according to the appropriateness determination result to the analysis output unit Output means.

  Therefore, an analysis based on an appropriately measured electrocardiogram signal can be performed.

(3) The electrocardiogram measurement apparatus according to the present invention is characterized in that the suitability judging means judges suitability based on a change in the baseline of the electrocardiographic waveform in the judgment section to be judged.

  Therefore, suitability can be determined based on the stability of the measured electrocardiogram waveform.

(4) The electrocardiogram measuring apparatus according to the present invention is characterized in that the suitability judging means judges the suitability according to the level of baseline fluctuation.

  Therefore, the appropriateness can be determined according to the level of baseline fluctuation.

(5) The electrocardiogram measuring apparatus according to the present invention is characterized in that the suitability judging means judges suitability based on the waveform feature value of the electrocardiogram waveform in the judgment section to be judged.

  Therefore, suitability can be determined based on the waveform feature value of the measured electrocardiogram waveform.

(6) In the electrocardiograph according to the present invention, the suitability determining means calculates the waveform feature value and the average value of the electrocardiographic waveform in the determination section to be determined, and the waveform feature value is relative to the average value. A beat within a range within a predetermined value is set as a proper beat, and when there are a predetermined number or more of appropriate beats in the determination section, the determination section is set as a proper determination section.

  Therefore, a section having a waveform that does not deviate more than the average value can be selected as an appropriate section.

(7) The electrocardiograph according to the present invention is characterized in that the waveform feature value includes at least a QT interval.

  Therefore, it can be determined whether the waveform is suitable for analysis based on the RR interval and the QT interval.

(8) The electrocardiogram measurement apparatus according to the present invention is characterized in that the suitability output means displays suitability or suitability level on a screen.

  Therefore, it can be easily known whether or not the measured waveform is suitable for analysis.

(9) The electrocardiogram measuring apparatus according to the present invention is characterized in that the suitability output means outputs the suitability or suitability level as a sound.

  Therefore, it is possible to easily know the suitability without looking at the screen.

(10) The electrocardiogram measuring apparatus according to the present invention is characterized in that the analysis output means outputs at least an electrocardiographic waveform in the appropriate judgment section.

  Therefore, it is possible to easily obtain an electrocardiographic waveform in an appropriate section for content analysis.

(11) The electrocardiograph according to the present invention is characterized in that the analysis output means outputs a finding based on at least the electrocardiographic waveform in the appropriate judgment section.

  Therefore, an appropriate finding can be easily obtained.

(12) In the electrocardiogram measurement apparatus according to the present invention, the analysis output means calculates and outputs an average value of the feature values of the electrocardiogram waveform based on at least the electrocardiogram waveform of the appropriate beat in the appropriate determination section. It is characterized by that.

  Therefore, a determination can be easily made based on the average value.

(13) In the electrocardiogram measuring apparatus according to the present invention, the analysis output means automatically outputs an analysis result for the electrocardiogram waveform in the appropriate judgment section having the highest appropriateness among the appropriate judgment sections by the suitability judging means. It is characterized by doing.

  Therefore, an analysis result can be automatically obtained based on the most suitable electrocardiographic waveform.

(14) In the electrocardiogram measuring apparatus according to the present invention, the analysis output means looks at the output appropriateness determination result, and, according to the operator's instruction, the appropriateness with the highest appropriateness in the appropriateness determination section by the appropriateness determination means Therefore, the analysis result is output for the determination section. Therefore, the analysis can be started by the operation of the operator based on the electrocardiogram waveform of the most appropriate section.

(15) The electrocardiograph according to the present invention is characterized in that the measurement target is a person or an animal.

  Therefore, even an animal can perform measurement using an electrocardiographic waveform that is less affected by body movement.

(16) The electrocardiogram measuring apparatus according to the present invention includes a plurality of ECG signals, and the suitability output means determines that the lowest suitability among the suitability for each lead is the suitability of the suitability determination section. It is a feature.

  Therefore, suitability can be presented more accurately.

(17) (18) An electrocardiograph according to the present invention acquires a multi-lead electrocardiogram signal from an electrode in contact with a measurement object, and the waveform of an electrocardiogram waveform in a judgment section to be judged for each lead When a characteristic value is calculated, and all the guidances in the determination section are determined to be beats having a waveform characteristic value within a predetermined value within a predetermined range with respect to the average value, and a predetermined number or more of the determination sections are proper beats , Waveform shape suitability determination means using the electrocardiographic waveform of all leads in the judgment section as a proper judgment section, and stability suitability judgment for calculating a predetermined level of waveform stability based on the baseline fluctuation of each lead in the proper judgment section If no appropriate judgment section is found from the start of measurement, or if a proper judgment section with a waveform stability higher than the predetermined level is not found, an inappropriate message is output and the waveform stability is higher than the predetermined level. Appropriate judgment section with sex If found, the appropriateness output means for outputting the appropriateness corresponding to the highest waveform stability in the appropriateness determination section, and the analysis output reception in which the analysis output operation is input by the operator who recognizes the output of the appropriateness output means When the operator's analysis output operation is input by the means and the start receiving means, the electrocardiogram waveform of all the leads in the appropriate judgment section with the highest stability is output, and the findings calculated based on the electrocardiogram waveform And an analysis output means for outputting an average electrocardiogram waveform averaged based on the electrocardiogram waveform of the appropriate beat in the appropriate judgment section and outputting the average waveform of the average electrocardiogram waveform.

  Therefore, after the operator confirms the appropriateness level, an analysis based on the electrocardiographic signal in an appropriate interval can be output.

  In the present invention, “appropriateness determination means” corresponds to steps S6 and S10 in the embodiment.

  In the embodiment, “appropriateness output means” corresponds to step S11.

  In the embodiment, “analysis output means” corresponds to steps S21 to S26.

  “Analysis” is a concept that includes not only performing predetermined calculation processing based on an electrocardiogram waveform but also displaying an appropriate electrocardiogram waveform for observation.

  The “program” is a concept that includes not only a program that can be directly executed by the CPU, but also a source format program, a compressed program, an encrypted program, and the like.

It is a functional block diagram of the electrocardiogram measuring device by one Embodiment of this invention. It is a figure which shows the state of the dog 20 at the time of measurement. It is a figure which shows a hardware configuration. 5 is a flowchart of an electrocardiogram measurement program 52. 5 is a flowchart of an electrocardiogram measurement program 52. It is an example of the acquired electrocardiogram waveform. It is a figure which shows the feature-value of an electrocardiogram waveform. It is a figure which shows the criteria of judgment of appropriateness, and judgment of stability. This is a stability evaluation standard. It is a figure which shows a judgment area and its judgment content. It is an example of a screen display. It is a flowchart of a report display. It is an example of a report display screen. It is a figure which shows the example of electrode attachment to a human body.

1. Overall Configuration FIG. 1 shows a functional block diagram of an electrocardiogram measuring apparatus according to an embodiment of the present invention. The electrodes 1, 1,... Are attached to a measurement target, for example, a dog. The suitability determination means 16 receives an electrocardiogram waveform from the electrodes 1, 1,... And determines whether appropriate measurement has been performed based on the electrocardiogram waveform.

  In this embodiment, the suitability determining unit 16 includes a waveform shape suitability determining unit 2 and a stability suitability determining unit 4. The waveform shape suitability determining means 2 calculates the waveform feature value of the electrocardiographic waveform in the determination section to be determined. The determination section can be specified as a predetermined number of beats or a predetermined time.

  An average value of waveform feature values in the determination section is calculated, and a beat of an electrocardiographic waveform having a waveform feature value within a predetermined value from the average value is determined as an appropriate beat. A judgment section in which the number of individual beats in the judgment section is a predetermined number or less is regarded as inappropriate, and a judgment section exceeding the predetermined number is regarded as a proper judgment section.

  The stability suitability determination means 4 calculates the fluctuation amount of the baseline of each beat for the electrocardiogram waveform of the appropriate beat in the appropriate determination section. A level of stability is assigned to each appropriate beat according to the amount of change in the baseline of each beat. Stability levels include inadequate stability and appropriate stability levels. In this embodiment, the stability of the appropriate determination section is determined by the average of the baseline fluctuation amounts of the appropriate beats included in the appropriate determination section. In addition, you may make it make stability of the beat of the lowest stability among appropriate beats into the stability of the said appropriate judgment area.

  The suitability output means 6 outputs from the suitability output unit 8 an output indicating that it is inappropriate if there is no suitability determination section from the start of measurement to the present. Further, when there is a proper judgment section, the highest stability level in each proper judgment section is outputted from the suitability output unit 8. As the suitability output unit 8, a display for display, a speaker for notification, or the like can be used.

  The operator refers to the output of the suitability output unit 8 and instructs the start receiving means 10 to start analysis output. For example, the analysis output start button on the screen is clicked.

  The analysis output unit 12 selects the electrocardiogram waveform in the appropriate determination section that is most appropriate and outputs it to the analysis output unit 14. The operator performs analysis based on this output. Further, in this embodiment, the analysis output means 12 calculates and outputs a finding based on the Minnesota code or the like based on the electrocardiographic waveform in the appropriateness determination section. In addition, the average electrocardiogram waveform and the waveform feature amount of only the individual beats in the electrocardiogram waveform in the appropriate judgment section are calculated and output.

As described above, it is possible to know whether there is an appropriate judgment interval for analysis, and how much the appropriate level is, and the electrocardiogram waveform of the judgment interval with the highest appropriate level from the start of measurement. Analysis can be performed based on this.

2. Hardware Configuration FIG. 2 shows an example of electrodes for measuring a dog's electrocardiographic waveform. In this example, four electrodes including a right forefoot electrode RA, a left forefoot electrode LA, a right hindfoot electrode RLD, and a left hindfoot electrode LL are provided. At the time of measurement, as shown in FIG. 2, the dog 20 places a leg on these electrodes.

  FIG. 3 shows the hardware configuration of the electrocardiograph. An A / D converter 36, a memory 38, a display 40, a speaker 42, a hard disk 44, a DVD-ROM drive 46, and a mouse / keyboard 48 are connected to the CPU 30.

  The A / D converter 36 takes in an electrocardiographic waveform from the electrodes RA, LA, RLD, LL via the amplification amplifier 34 and converts it into digital data. The display 40 displays the suitability output and the analysis result. The speaker 42 outputs a propriety output as sound.

An operating system 50 and an electrocardiogram measurement program 52 are recorded on the hard disk 44. The electrocardiogram measurement program 52 exhibits its function in cooperation with the operating system 50. These programs are those recorded on the DVD-ROM 50 and installed on the hard disk 44 via the DVD-ROM drive 46.

3. ECG Measurement Processing FIGS. 4 and 5 show flowcharts of an electrocardiogram measurement program 52 according to one embodiment of the present invention. The CPU 30 takes an electrocardiographic waveform from the A / D converter 36 and records it on the hard disk 44 (step S1). In this embodiment, six induced waveforms (I, II, III, aVR, aVL, aVF) are captured as electrocardiographic waveforms by four electrodes RA, LA, RLD, LL in contact with the foot. Note that the number of electrodes may be increased to capture more leads (for example, 12 leads), or the number of electrodes may be decreased to capture fewer leads (for example, one lead).

  FIG. 6 shows the captured 6 leads. As shown in FIG. 11, the CPU 30 displays the captured 6-lead waveform on the display 40. Furthermore, one beat is recognized based on the waveform shape of the acquired electrocardiogram waveform (step S2). Further, it is determined whether one beat has elapsed since the previous suitability determination process (step S3). If it is determined that one beat has elapsed, the CPU 30 calculates a feature amount for the latest electrocardiographic waveform in the determination section for each lead (step S4). In this embodiment, QTc, ST, RS, T, RR interval, QT interval, and the like are calculated. The CPU 30 records the calculated feature amount.

  FIG. 7 shows an example of the recorded feature amount. The top row shows the number of beats recognized. Serial numbers are given in the order of recognition. In FIG. 7, only the guidance I is shown, but other guidance is recorded in the same manner.

  Next, the CPU 30 calculates the average value of the feature values from the latest beat to 10 seconds before (predetermined seconds) for each guidance (step S5). For example, for guidance I, the average value of the feature values for 10 seconds is calculated as shown on the right side of FIG. The same calculation is performed for the other leads.

  CPU30 judges whether the stable measurement was performed in each beat by calculating the difference with the calculated average value. Specifically, it is determined whether or not the RR interval and QT interval shown in FIG. 8 are not far from the average value (whether the beat is appropriate) (step S6). Detailed processing will be described below.

  First, the CPU 30 selects beats in which the RR interval is within the range of 100 msec from the average value for all six leads among the beats for 10 seconds. Furthermore, among the selected beats, for all six leads, a beat whose QT interval is within the range of 50 msec from the average value is selected and set as an appropriate beat.

  Next, the CPU 30 determines whether or not there are five or more appropriate nights in 10 seconds (step S7). When the appropriate night is 4 beats or less, it is determined that the electrocardiogram for 10 seconds is not properly measured (for example, the dog's body movement was intense).

  When the appropriate night is 5 beats or more, the CPU 30 sets the entire electrocardiogram for 10 seconds including the beat having a large deviation from the average value (not the appropriate beat) as the appropriate judgment section (step S8).

  CPU30 calculates the average value of baseline fluctuation | variation about each appropriate beat in a suitable judgment area (step S9). In this embodiment, the baseline position of 0 mV is assumed to be most stable, and it is determined that the larger the fluctuation of the baseline position relative to this, the more unstable it is.

  For example, as shown in FIG. 8, the value of Pb is used as the base line position, and this base line position is simultaneously used as the base line position fluctuation value. Note that the baseline may be calculated by other methods. The average value of the baseline fluctuation values of the appropriate beats calculated in this way is calculated.

  Further, the average value of the baseline fluctuation value is calculated for all the leads, and this is further averaged. In this way, the average baseline fluctuation value is calculated.

  Next, the CPU 30 calculates the stability of the waveform in the appropriate determination section based on the calculated average baseline fluctuation value (step S10). In this embodiment, the determination is made according to the criteria as shown in FIG. When the absolute value of the average baseline fluctuation value exceeds 1 mV, it is determined to be unstable, and according to the absolute value, it is determined at four levels up to 0.2 mV or less. It is judged that level 4 is the most stable.

  As described above, the stability level can be calculated and determined for the current appropriateness determination section.

  Next, the CPU 30 selects the most stable level for each appropriate judgment section from the start of measurement until now. FIG. 10 shows determination sections D1 to D5, whether each corresponds to an appropriate determination section, and an example of determination results regarding the stability level.

  Each time a new period is recognized, a new determination period (with overlapping beats) of 10 seconds (about 10 periods) is set as the determination period. The CPU 30 selects the highest stability level for the appropriate judgment section from the start of measurement until now. In the example of FIG. 10, the stability level 2 of the determination section D2 is selected. The CPU 30 displays an indicator corresponding to the selected stability level on the screen (step S11).

  In FIG. 11, the example of the indicator displayed on the display 40 which is a suitability output part is shown. In the waveform display section 56 at the center of the screen, the latest measured waveforms of the respective leads are displayed. On the right side of the screen, a report display button 50, a remeasurement button 52, and a button 54 for returning to the title are displayed. An indicator 70 is displayed on the report display button 50. The CPU 30 displays the indicator 70 in a color corresponding to the stability level selected in step S11.

  In this embodiment, level 1 is “green”, level 2 is “yellowish green”, and level 3 is “yellow”. Level 4 is displayed in “orange”, and unstable (or no proper judgment section) is displayed in “red”. Therefore, the user can know the highest stability level from the start of measurement by looking at the color of the indicator 70.

  Next, the CPU 30 returns to step S1 and repeats the process. As a result, the stability of the determination section is determined and recorded one after another, and the highest stability level is indicated as the color of the indicator 70.

  Next, when the operator presses the report display button 50 with a mouse or the like, the CPU 30 performs report display processing. In this embodiment, the report display button 50 cannot be effectively operated unless at least level 1 is reached. FIG. 12 shows a flowchart of the report display process.

  When the report display button 50 is pressed, the CPU 30 acquires the waveform data (and the calculated feature amount) in the optimum section (step S21). That is, the data of the determination section having the highest stability level is acquired from the hard disk 44.

  Next, an average waveform (a waveform obtained by averaging the points indicating the characteristics of the waveform) obtained by graphically averaging the appropriate waveforms in the acquired determination section is acquired (step S22).

  Further, based on all the waveforms in the appropriate judgment section, a finding based on the Minnesota code or the like is acquired (step S23).

  The CPU 30 displays a report screen including findings based on the calculated average waveform, original electrocardiogram waveform, Minnesota code, and the like (steps S24, S25, and S26). In this embodiment, an average waveform, a finding, etc. are calculated and recorded in advance for each judgment section. Therefore, when the report display button 50 is pressed, these recorded waveforms and findings are read out and displayed as a report screen.

  Note that after the report display button 50 is pressed, the average waveform, findings, etc. of the optimum section may be calculated and displayed.

  FIG. 13 shows an example of a report screen displayed on the display 40 which is an analysis output unit. Although blank in FIG. 13, if there is a finding based on the Minnesota code or the like, a display is made in the Minnesota code display field 62. The average waveform displays the calculated average waveform. Doctors or veterinarians can use this waveform as a reference for their findings. When viewing a detailed waveform, look at the cut-out waveform on the right. When the print button 60 is clicked, the CPU 30 prints the report.

As described above, according to this embodiment, when measuring in real time, the stability of the most stable determination section is displayed by color. Therefore, the operator can easily determine whether or not to display the report.

4). Other
(1) In the above embodiment, the stability is displayed by color. However, it may be indicated by a numerical value. Further, the stability may be output by sound or vibration. In this case, the tone color or pitch of the sound is changed or the vibration frequency is changed according to the stability. Furthermore, both color display and sound may be output.

(2) In the above embodiment, the analysis is started by the operation of the operator and the report is displayed. However, when a determination section exceeding a predetermined level of stability set in advance is found, the analysis may be automatically performed and a report may be displayed.

(3) In the above embodiment, the indicator 70 is provided, and a color corresponding to the stability is displayed on the indicator 70. However, the color of the entire screen may be used as an indicator. Further, the report button 50 may be displayed in a color corresponding to the stability, and the report button 50 may also be used as an indicator.

(4) In the above embodiment, the case of measuring the electrocardiogram of a dog has been described, but the present invention can also be applied to the case of measuring the electrocardiogram of another animal such as a cat. It can also be used to measure electrocardiograms of not only animals but also people (especially infants and people whose behavior is not stable).

  When performing human measurement, as shown in FIG. 14, electrodes may be attached to the right wrist, left wrist, right ankle, and left ankle, respectively. Note that fewer electrodes may be attached, or more electrodes may be attached to obtain 12 leads.

(5) In the above embodiment, measurement is performed by bringing an electrode into contact with the foot. However, measurement may be performed by bringing an electrode into contact with another part, and the present invention can also be applied to this case.

(6) In the above embodiment, the CPU 30 analyzes the content of the electrocardiogram waveform in an appropriate section and outputs the analysis result. However, an electrocardiogram waveform in an appropriate section may be displayed (printed) so that the operator can analyze the contents. In the latter case, displaying an electrocardiographic waveform in an appropriate interval is also an analysis.

(7) In the above embodiment, processing is performed by a local computer. However, the measured electrocardiographic waveform may be transmitted to the server via the Internet or the like, and a display screen (FIGS. 11 and 13) may be generated on the server side and displayed on the local computer. In this case, since the electrocardiogram measurement program 52 is recorded on the server, the local computer may have a browser program.

(8) In the above embodiment, the RR interval and the QT interval are used as waveform feature amounts for determining whether or not the beat is appropriate. However, only the QT interval or only the RR interval may be used. Further, other waveform feature amounts may be used alone or in combination.

Claims (18)

Appropriateness determination means for acquiring an electrocardiogram signal from the electrode in contact with the measurement object and determining whether or not appropriate measurement has been performed based on the electrocardiogram signal;
Suitability output means for outputting the result of suitability judgment by the suitability judgment means to the output unit;
An analysis output means for outputting an analysis output of an electrocardiogram signal, which has been appropriately measured, to an analysis output unit according to the determination result of suitability;
An electrocardiograph with a An electrocardiogram program for realizing an electrocardiograph by a computer, the computer
Appropriateness determination means for acquiring an electrocardiogram signal from the electrode in contact with the measurement object and determining whether or not appropriate measurement has been performed based on the electrocardiogram signal;
Suitability output means for outputting the result of suitability judgment by the suitability judgment means to the output unit;
An electrocardiogram measurement program for functioning as an analysis output unit that outputs an analysis output of an electrocardiogram signal that has been appropriately measured to an analysis output unit in accordance with a result of determination of suitability. In the apparatus of claim 1 or the program of claim 2,
The apparatus for determining whether or not suitability is determined based on a change in the baseline of the electrocardiographic waveform in a judgment section to be judged. In the apparatus or program of Claim 3,
The apparatus or program for determining whether or not suitability is appropriate, according to a level of the baseline fluctuation. In the apparatus or program in any one of Claims 1-4,
The apparatus for determining whether or not suitability is determined based on a waveform feature value of an electrocardiographic waveform in a judgment section to be judged. In the apparatus or program of Claim 5,
The suitability judging means calculates a waveform feature value and an average value of the electrocardiographic waveform in a judgment section to be judged, and determines a beat whose waveform feature value is within a predetermined value range relative to the average value. An apparatus or program characterized in that, when there are a predetermined number or more of appropriate beats in the determination section, the determination section is set as the appropriate determination section. In the apparatus or program of Claim 6,
The apparatus or program according to claim 1, wherein the waveform feature value includes at least a QT interval. In the apparatus or program in any one of Claims 1-7,
The suitability output unit displays suitability or suitability level on a screen. In the apparatus or program in any one of Claims 1-8,
The suitability output unit outputs a suitability or suitability level as a sound. In the apparatus or program in any one of Claims 1-9,
The analysis output means outputs at least an electrocardiographic waveform in an appropriate judgment section. In the apparatus or program in any one of Claims 1-10,
The analysis output means outputs a finding based on at least an electrocardiographic waveform in a proper judgment section. In the apparatus or program in any one of Claims 1-11,
The analysis output means calculates and outputs an average waveform of the electrocardiographic waveform based on at least the electrocardiographic waveform of the appropriate beat in the appropriate determination section. In the apparatus or program in any one of Claims 1-12,
The analysis output means automatically outputs an analysis result for an electrocardiogram waveform in a proper judgment section having the highest degree of appropriateness among the proper judgment sections by the suitability judgment means. In the apparatus or program in any one of Claims 1-12,
The analysis output means is configured to output an analysis result for an appropriate judgment section having the highest degree of appropriateness among the appropriate judgment sections by the suitability judging means by looking at the output suitability judgment result and according to an instruction from an operator. A device or program. In the apparatus or program in any one of Claims 1-14,
An apparatus or a program characterized in that the measurement object is a human or an animal. In the apparatus or program in any one of Claims 1-15,
The ECG signal includes a plurality of leads,
The apparatus according to claim 1, wherein the adequacy output unit sets the adequacy of the appropriate determination section as the adequacy of the appropriateness determination section. A multi-lead electrocardiogram signal is obtained from the electrode in contact with the measurement target, and the waveform feature value of the electrocardiogram waveform in the judgment section to be judged is calculated for each lead, and all the leads in the judgment section are waveform feature values. If the beat within the range within the predetermined value with respect to the average value is the appropriate beat, and the predetermined number or more of the determination sections are the appropriate beat, the electrocardiographic waveform of all leads in the determination section is determined as the proper determination section. Waveform shape suitability determining means to perform,
Stability suitability judging means for calculating a predetermined level of waveform stability based on the baseline fluctuation of each guide in the suitability judgment section;
If a proper judgment section is not found from the start of measurement, or if a proper judgment section having a waveform stability higher than a predetermined level is not found, an inappropriate message is output and the waveform stability is higher than a predetermined level. When an appropriate judgment section is found, an appropriateness output means for outputting an appropriate degree according to the highest waveform stability among these proper judgment sections;
An analysis output receiving means for receiving an analysis output operation by an operator who has recognized the output of the suitability output means;
When the operator's analysis output operation is input by the start receiving means, the electrocardiogram waveform of all leads in the appropriate judgment section with the highest stability is output, and the findings calculated based on the electrocardiogram waveform are output. Outputting an averaged electrocardiographic waveform averaged based on the electrocardiographic waveform of the appropriate beat in the appropriate judgment section, and outputting an average waveform of the averaged electrocardiographic waveform;
An electrocardiograph with a An electrocardiograph program for realizing an electrocardiograph by a computer, the computer
Acquire multi-lead ECG signals from electrodes in contact with the measurement target, calculate the waveform feature value of the ECG waveform in the judgment section to be judged for each lead, and all leads in the judgment section are waveform features When a beat whose value is within a predetermined value with respect to the average value is regarded as an appropriate beat, and a predetermined number or more of the determination sections are appropriate beats, the electrocardiographic waveform of all leads in the determination section is determined as the appropriate determination section. Waveform shape suitability judging means and
Stability suitability judging means for calculating a predetermined level of waveform stability based on the baseline fluctuation of each guide in the suitability judgment section;
If a proper judgment section is not found from the start of measurement, or if a proper judgment section having a waveform stability higher than a predetermined level is not found, an inappropriate message is output and the waveform stability is higher than a predetermined level. When an appropriate judgment section is found, an appropriateness output means for outputting an appropriate degree according to the highest waveform stability among these proper judgment sections;
Start accepting means in which a start operation is input by an operator who has recognized the output of the suitability output means;
When the operator's analysis output operation is input by the start receiving means, the electrocardiogram waveform of all leads in the appropriate judgment section with the highest stability is output, and the findings calculated based on the electrocardiogram waveform are output. An electrocardiogram measurement program for outputting an average electrocardiogram waveform averaged based on an electrocardiogram waveform of an appropriate beat in the appropriate judgment section and functioning as an analysis output means for outputting the average waveform of the average electrocardiogram waveform .

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