JP2013208367A - Electrocardiographic data output device, and electrocardiogram analysis device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrocardiographic data output device allowing easy comprehension of how a result of electrocardiogram measurement has changed, compared to the past.SOLUTION: An electrocardiographic data output device acquires electrocardiographic data based on electric signals inputted through electrodes attached to a subject, and analyzes the acquired electrocardiographic data to generate observation data. The electrocardiographic data and the observation data are associated to each other and are stored in a memory card. An electrocardiographic waveform 81 based on the present electrocardiographic data and an electrocardiographic waveform 82 based on the past electrocardiographic data are displayed on a display part, and the observation data 83 to the present electrocardiographic data and the observation data 84 to the past electrocardiographic data are displayed such that the observation data 83, 84 can be compared and collated.

Description

  The present invention relates to an electrocardiogram data output device and an electrocardiogram analyzer.

  The ECG is not only used to measure ECG, but also stores ECG data obtained from past measurements in a storage medium so that the ECG waveform can be compared with the current one. (For example, refer to Patent Document 1).

JP 2002-233513 A

  In recent years, in particular, from the viewpoint of informed consent, it has been required to provide sufficient and easy-to-understand information to subjects.

  However, it is still difficult to grasp how the state of the subject has changed compared to the past by simply displaying the ECG waveforms side by side. In addition, the doctor extracts not only the recorded ECG waveform but also the representative heartbeats of the simultaneous series as one beat when comparing the current ECG waveform with the past in order to perform appropriate treatment on the subject. Comprehensive diagnosis should be made, including the dominant waveform analyzed in this way, the electrocardiogram waveform, and the findings from the analysis of the dominant waveform.

  Therefore, an object of the present invention is to provide an electrocardiogram data output apparatus that can easily grasp how the result of electrocardiogram measurement has changed compared to the past.

  According to one aspect of the present invention, acquisition means for acquiring electrocardiogram data based on an electrical signal obtained via an electrode attached to a subject and finding data obtained by analyzing the electrocardiogram data; and Storage means for storing electrocardiogram data and finding data acquired by the acquiring means in association with each other, current ECG data and finding data acquired by the acquiring means, and past ECG data and finding data stored in the storing means And an output means for outputting them in the same plane so that they can be compared and contrasted.

  ADVANTAGE OF THE INVENTION According to this invention, the electrocardiogram output device which can grasp | ascertain how it changed compared with the past about the result of an electrocardiogram measurement is implement | achieved.

The external appearance perspective view of the electrocardiogram data output device in an embodiment. The block diagram which shows the hardware constitutions of the electrocardiogram data output device in embodiment. The flowchart which shows the process in the normal mode of the electrocardiogram data output device in an embodiment. The flowchart which shows the process in the time series comparison mode of the electrocardiogram data output device in an embodiment. The figure which shows the example of the real-time waveform display screen in the normal mode of the electrocardiogram data output device in the embodiment. The figure which shows the example of the time series waveform display screen in the time series comparison mode of the electrocardiogram data output device in embodiment. The figure which shows the example of the dominant waveform comparison screen in the time series comparison mode of the electrocardiogram data output device in embodiment. The figure which shows the example of the dominant expansion waveform comparison screen in the time series comparison mode of the electrocardiogram data output device in embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited to the following embodiment, It shows only the specific example advantageous for implementation of this invention. Moreover, not all combinations of features described in the following embodiments are indispensable for solving the problems of the present invention.

  FIG. 1 is an external perspective view of an electrocardiogram data output apparatus according to the present embodiment, and FIG. 2 is a block diagram illustrating an example of a hardware configuration of the electrocardiogram data output apparatus. The electrocardiogram data output device can be realized in the form of a so-called electrocardiograph or electrocardiogram analyzer.

  As shown in the figure, the electrocardiogram data output apparatus 1 includes the following configuration including a CPU 101 that controls the entire apparatus, a ROM 102 that stores a boot program and a BIOS, and a RAM 103 that functions as a main storage device.

  The HDD 104 is a hard disk device in which a control program for executing control processing according to the present invention and electrocardiogram data to be described later are stored. However, the control program may be stored in the ROM 102. Reading and writing data to and from the HDD 104 is performed via the HDD controller 104a.

  Reference numeral 105 denotes an operation panel. Reference numeral 106 denotes a liquid crystal display (LCD) constituting a display unit, and a touch panel 107 is disposed on the LCD 106. Image display on the LCD 106 is performed via the LCD controller 106a, and control including detection of an operation on the touch panel 107 is performed via the touch panel controller 107a. Therefore, the user can input various instructions using the operation panel 105 or the touch panel 107.

  A thermal printer 108 prints out an electrocardiogram waveform, an analysis report, and the like on a built-in printing paper. The thermal printer 108 is controlled via the printer controller 108a.

  Reference numeral 109 denotes a memory card slot that detachably accommodates the memory card 109a. When the memory card 109a is connected to the memory card slot 109, the electrocardiogram data, the finding data obtained by the analysis, etc. can be stored in the memory card 109a.

  In addition, in the electrocardiogram 1, for example, a plurality of electrodes 111 to be mounted on the chest and limbs of a subject in order to perform measurement of standard 12 leads are connected via a lead interface (I / F) 110. The induction I / F 110 includes an A / D converter that converts an electrical signal input from the electrode group 111 into digital data.

  The electrocardiogram data output device 1 in the present embodiment is generally configured as described above. The electrocardiogram data output apparatus 1 of the present embodiment is realized as a laptop-type dedicated machine as shown in FIG. 1, but can also be realized by a personal computer, for example.

  Next, the processing operation of the electrocardiogram data output apparatus 1 in this embodiment will be described.

  The electrocardiogram data output apparatus 1 according to the present embodiment operates as a normal mode in which acquired electrocardiogram data is displayed in real time as an operation mode, and the current (current) electrocardiogram data can be compared and compared with past electrocardiogram data in one screen. Has a time-series comparison mode. These modes can be designated in advance as environment settings. It is also possible to shift to different modes during operation.

  FIG. 3 shows an operation flow in the normal mode, and FIG. 4 shows an operation flow in the time series comparison mode. A control program corresponding to each operation flow is stored in, for example, the HDD 104, loaded into the RAM 103 after the electrocardiogram data output device is activated, and executed by the CPU 101.

  First, the operation flow in the normal mode of FIG. 3 will be described. Although not specifically described here, it is assumed that information (ID, age, sex, etc.) related to the subject to be measured is set in advance. In addition, it is assumed that the operation setting of the other ECG data output device is made as necessary.

  First, an electrical signal from the electrode 111 attached to the subject is input to the induction I / F 110, and electrocardiogram data is acquired here (step S301). The acquired electrocardiogram data is buffered, for example, in the RAM 103 (step S302). The buffered electrocardiogram data is immediately displayed on the LCD 106 as a real time waveform (step S303).

  FIG. 5 is a diagram showing an example of real-time waveform display in the electrocardiogram data output apparatus 1 of the present embodiment. The timer display unit 32 normally displays the current time. During exercise, the remaining time and elapsed time are displayed as a timer. The subject information display unit 33 displays subject information such as the subject ID, sex, and age.

  The waveform display unit 34 displays the currently detected electrocardiogram waveform in real time. The waveform displayed here can be changed by setting. In the example of FIG. 5, each standard 12-lead waveform and one lead waveform (here, the second lead waveform) selected in advance as a rhythm waveform are displayed.

  The heart rate display unit 35 displays the heart rate. Various information related to the state of the electrocardiogram data output device 1 is displayed on the device state display unit 36. In the present embodiment, the state of the electrocardiogram data output device is displayed by icon display and character display. The displayed state includes an electrode disconnection, a battery state (remaining amount) when the battery is driven, a printer state, a recording paper state (out of recording paper, paper jam, etc.), a memory card state, and the like.

  The function key display unit 37 displays function keys of functions available on the currently displayed screen. When an icon part is touched, the touch is detected by the touch panel 107, and a function corresponding to the touched icon part is executed.

  Returning to FIG. 3, in step S304, electrocardiogram data for a predetermined time buffered in the RAM 103 is analyzed. The analysis process may be a well-known analysis process that is performed by a conventional electrocardiogram analysis apparatus or the like and performs determinations such as waveform abnormality, RR interval abnormality, and ST rise. Finding data is generated by such analysis processing.

  The finding data obtained by the analysis processing in step S304 is associated with the electrocardiogram data and the subject ID, and is stored in the HDD 104 or the memory card 109a according to the environment setting (step S305).

  In step S306, it is detected whether or not there is an end instruction from the user via the operation panel 105. If there is no end instruction, the process returns to step S303 and continues. If there is an end instruction, this process ends.

  Next, an operation flow in the time series comparison mode of FIG. 4 will be described.

  First, past electrocardiogram data (hereinafter referred to as “past data”) stored in the HDD 104 or the memory card 109a is selected and read (step S401). Here, for example, recent data may be selected from past data having the same ID as the subject ID set in advance as a measurement target. As will be described later, it is possible to call other past data by a user operation.

  Next, an electrical signal from the electrode 111 attached to the subject is input to the guidance I / F 110, where current electrocardiogram data (hereinafter referred to as “current data”) is acquired (step S402). The acquired current data is buffered in the RAM 103, for example (step S403).

  Subsequently, the current data buffered in the RAM 103 is read, and analysis processing similar to that performed in the past is executed (step S404). The finding data obtained by this analysis process is associated with the current data and the subject ID, and stored in the HDD 104 or the memory card 109a according to the environment setting (step S405).

  Next, time-series comparison display is performed in which the waveform of past data and the waveform of current data are displayed side by side (step S406).

  FIG. 6 is a diagram showing an example of time-series comparison display in the electrocardiogram data output apparatus 1 of the present embodiment. As in the example of FIG. 5, each standard 61-lead waveform 61 is displayed, and a “Current” mark 62 is also displayed indicating that this is the currently detected electrocardiogram waveform. Next to each induction waveform, a representative waveform 63 of past data of the same induction is displayed, and a time stamp 64 representing a date when the past data is acquired is also displayed.

  Here, the past data to be displayed can be selected again by tapping the data selection key 65. When the data selection key 65 is tapped, the past data associated with the subject ID is searched from the HDD 104 or the memory card 109a using the currently set subject ID as a search key and displayed in a separate window. A list of search results is displayed. The user can select desired past data from the list. The past data thus selected is read from the HDD 104 or the memory card 109a, and the representative waveform 63 of the past data in FIG. 6 is updated to the representative waveform of the read past data.

  In this embodiment, a dominant waveform is used as the representative waveform. The dominant waveform is, for example, a waveform that appears most frequently in order to grasp a normal waveform. Alternatively, the QRS average waveform of each lead may be a dominant waveform.

  Returning to FIG. 4, in step S407, it is determined whether dominant comparison has been instructed. The dominant comparison can be instructed by, for example, tapping the dominant comparison key 66 in FIG. When the dominant comparison key 66 is tapped, a dominant comparison display is performed in step S408.

  FIG. 7 is a diagram showing an example of a dominant comparison display screen in the electrocardiogram data output apparatus 1 of the present embodiment. The current waveform display unit 71 displays each standard 12-lead dominant waveform of the current data. The past waveform display unit 72 on the right side of the current waveform display unit 71 displays the dominant 12 standard waveforms of past data.

  As an option, the current second induction waveform 73 selected as the rhythm waveform and the past second induction waveform 74 are also displayed at the bottom of the screen. Thereby, it is possible to compare and contrast the current ECG waveform and the past ECG waveform.

  Further, in the present embodiment, the current data finding data 76 and the past data finding data 77 are displayed side by side as a comprehensive finding comparison display on the right side of the subject information display section 75 in the upper part of the waveform display. . As a result, the analysis result can be easily confirmed between the present and the past.

  Returning to FIG. 4, in step S <b> 409, it is determined whether an enlargement display instruction of the dominant waveform has been performed. The dominant waveform enlargement display instruction can be performed, for example, by tapping a single dominant waveform desired by the user on the screen of FIG.

  FIG. 8 is a diagram showing an example of a dominant waveform enlarged display screen in the electrocardiogram data output apparatus 1 of the present embodiment. As shown in the figure, the first dominant waveform 81 related to the current data and the second dominant waveform 82 related to the past data are displayed side by side so as to be compared and contrasted.

  At this time, analysis processing is executed on the first and second dominant waveforms 81 and 82 to generate first and second individual finding data. Alternatively, when these data are already generated and stored in the HDD 104 or the memory card 109a, the data may be read out. The individual observation data 83 and 84 for the respective waveforms are displayed side by side so as to be compared and contrasted above the dominant enlarged waveforms 81 and 82. This makes it possible to easily compare the present and past observations by guidance.

  At this time, highlighting such as changing the display color of the difference from the past finding data in the current finding data may be performed. By doing so, it becomes clear at a glance how the current measurement result has changed from the past measurement result.

  In the example of FIG. 8, the current dominant waveform and the past dominant waveform are displayed side by side, but they may be superimposed and displayed in different colors. By doing so, the difference between the two can be easily confirmed.

  In the above-described embodiment, the mode in which various waveforms are displayed on the display centering on the time series comparison display is shown, but the present invention is not limited to this. All of the various waveforms described above can be arbitrarily printed by a printer. That is, the various waveforms described above can be output in any manner. Here, “output” includes the concept of display and printing.

  Further, in the above-described embodiment, the electrocardiogram waveform acquired in the past and the findings analyzed in the past are compared and compared with the currently acquired electrocardiogram waveform and the findings analyzed in the past, but the present invention is not limited to this. For example, an electrocardiogram waveform acquired in the past and a finding obtained by analyzing the past waveform at present may be compared and compared with an electrocardiogram waveform obtained at present and the finding analyzed at present. In other words, the ECG waveform compares the stored past waveform with the currently acquired waveform, but the findings do not use the past results, and the past waveforms analyzed by the current analysis means and the current waveforms are Contrast with findings analyzed by analysis means. This is because more accurate comparison can be achieved by unifying the analysis means (analysis program) into the same (latest).

Claims (10)

Obtaining means for obtaining electrocardiogram data based on an electrical signal obtained through an electrode attached to a subject and finding data obtained by analyzing the electrocardiogram data;
Storage means for storing the electrocardiogram data and the findings data acquired by the acquisition means in association with each other;
Output means for outputting current ECG data and finding data acquired by the acquiring means and past ECG data and finding data stored in the storage means in the same plane so as to be able to compare and contrast each;
An electrocardiogram data output device comprising: Obtaining means for obtaining electrocardiogram data based on an electrical signal obtained via an electrode attached to the subject;
Analyzing means for analyzing the electrocardiogram data obtained by the obtaining means to generate finding data;
Storage means for storing electrocardiogram data acquired by the acquisition means;
An electrocardiogram waveform based on current electrocardiogram data acquired by the acquisition means, an electrocardiogram waveform based on past electrocardiogram data stored in the storage means, finding data for the current electrocardiogram data generated by the analysis means, and the Display means for displaying the observation data for the previous electrocardiogram data generated by the analysis means within one screen so as to be able to compare and contrast each,
An electrocardiogram analyzer characterized by comprising: Obtaining means for obtaining electrocardiogram data based on an electrical signal obtained via an electrode attached to the subject;
Analyzing means for analyzing the electrocardiogram data obtained by the obtaining means to generate finding data;
Storage means for storing electrocardiogram data acquired by the acquisition means and finding data generated by the analysis means in association with each other;
An electrocardiogram waveform based on current electrocardiogram data acquired by the acquisition means, an electrocardiogram waveform based on past electrocardiogram data stored in the storage means, finding data for the current electrocardiogram data generated by the analysis means, and the Display means for displaying the observation data for the past electrocardiogram data stored in the storage means in one screen so as to be able to compare and contrast each,
An electrocardiogram analyzer characterized by comprising:   The electrocardiogram analysis apparatus according to claim 2, wherein the display unit highlights a portion of the finding data for the current electrocardiogram data that is different from the finding data for the past electrocardiogram data. The electrocardiogram data is further stored in the storage means in association with the subject ID,
Search means for searching electrocardiogram data associated with the same subject ID as the subject ID of the current electrocardiogram data among the electrocardiogram data stored in the storage means;
Selecting means for selecting one of the ECG data searched by the searching means as the past ECG data;
The electrocardiogram analysis apparatus according to claim 1, further comprising:   The said display means displays the dominant waveform of each induction | guidance | derivation as an electrocardiogram waveform based on the said current electrocardiogram data, and an electrocardiogram waveform based on the said previous electrocardiogram data, respectively. The electrocardiogram analyzer described in 1. Designating means for designating a first dominant waveform that is one of the dominant waveforms of each lead displayed by the display means;
The analysis unit analyzes the first dominant waveform data specified by the specifying unit and the current or past second dominant waveform data corresponding to the first dominant waveform, respectively. Generating first and second findings data;
The said display means displays the said 1st and 2nd finding data produced | generated by the said analysis means while expanding and displaying the said 1st and 2nd dominant waveform. ECG analyzer.   The display means highlights a portion of one of the first and second finding data and a difference from the other finding data among the finding data for the current dominant waveform data. The electrocardiogram analyzer according to claim 7.   The rhythm induction waveform is displayed as the electrocardiogram waveform based on the electrocardiogram waveform based on the current electrocardiogram data and the past electrocardiogram data, respectively, and the display means according to any one of claims 2 to 5. ECG analyzer.   The electrocardiogram waveform based on the current electrocardiogram data and the electrocardiogram waveform based on past electrocardiogram data stored in the storage unit are superimposed and displayed in different colors. The electrocardiogram analyzer according to any one of the above.

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