JPS62152434A - Method and apparatus for recording wave form of electrocardiograph - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Applicability] The present invention relates to a method for recording electrocardiogram waveforms and an apparatus thereof, and in particular, by displaying electrocardiogram-21 waveforms in different colors on a heart chart, The present invention relates to a method and apparatus for recording electrocardiogram waveforms that allow the function of the heart to be easily and intuitively understood.

[Conventional technology] Conventionally, the heart function was H! Please hold it in your hand.

It is widely known that this is an outstanding record. An electrocardiogram measures the rhythm of the heart and signs of excitement electrically.
They are represented by waveforms called P waves, QIIS complexes, and T waves. This is followed by mechanical excitation of the atria and ventricles, that is, contraction and expansion. Therefore, the waveform displayed on an electrocardiogram is an electrical view of the heart's 9Q pumping process, which is necessary to cause the heart to move, and the process by which the excitement subsides.

Conventional 1. Due to U revision, long lined recording paper (11
Kura with a serving of rice 7. I! The width of the small bit is the length lI
IIm, a small rectangle with a height of 1+u+++, and there are 5 small squares between the thick lines) is usually drawn at a width of 2.5 am per second. The width (milliseconds) and height (amplitude mV) of each wave of QIIS-8T-T is calculated by dividing the drawn waveform into one beat.
L, heart rate, rhythm, +ll deviation, hypertrophy, myocardial damage,
I understand the hard kangasa.

[Problem to be solved by the invention] However, in order to read an electrocardiogram, the recorded electrocardiogram I
44 pages of A must be read, as it takes time to read all of the large number of waveforms.

Accurate reading requires skill to read the parts that represent the overall characteristics of the waveform, and it is difficult to make positive, positive, and negative judgments due to individual differences. There was.

In addition, analyzing an electrocardiogram is very difficult even for experts, and even if you show an electrocardiogram 1'''A to a person with -1''A and explain the waveform, it will be difficult for them to understand.

The present invention was completed as a result of research conducted in view of these conventional problems, and it is possible to visually and intuitively understand abnormal areas by displaying electrocardiogram waveforms in different colors on a heart chart. It is an object of the present invention to provide an electrocardiogram waveform recording method and apparatus that can be easily explained and understood by the general public.

[R stage to solve the problem] and [Operation] That is, the present invention is designed to solve the problem by
j: Measure the waveform in the figure for a certain period of time and calculate f, totaling 11
A method for recording an electrocardiogram waveform, the method comprising: obtaining 11 waveforms, comparing the measured waveforms with the total ΔIII (+/i of Minnesota coat), (Bet value), and displaying the deviations in different colors on a cardiogram; And the measurement data of each conduction site is analog (
The electrocardiograph displayed on l'l'J- and the analogue, 3
1. An interface device that takes in the signal and converts it into a digital signal tJ, and a personal computer that takes in the digital signal and calculates the measurement data, and displays the deviation from the standard value in different colors on the heart chart. This is an electrocardiogram waveform recording device.

The present invention will now be described in detail.

The present invention analyzes 12 channels of biological signals input from an electrocardiograph, and automatically records electrocardiogram waveforms based on the results.

In the present invention, electrodes for electrocardiogram measurement are attached using standard 12 leads, consisting of six limb leads and six chest leads. Furthermore, a commercially available electrocardiograph may be used.

To explain the method of recording an electrocardiogram waveform according to the first aspect of the present invention, first, the electrocardiogram is recorded using a 12-channel
import the fixed data into a personal computer. The time for one capture is fixed at 5 seconds, the range of the number of captures is 1 to 6, and the range of the number of captures can be set arbitrarily.

The measurement data for the set number of times sent from the interface device is stored in the personal computer.

stored in memory in real time. The data stored in the L memory is used to select the measurement waveform (1 beat) for each lead (+2 leads) a fixed number of times. The measurement waveform selection condition is 3 beats from the beginning of the captured waveform “1 (3rd [1
) is taken as the ;t A11 waveform, or if there is a waveform that differs from three beats 11 during the set number of times, that is taken as the measured waveform.

Next, when the selection of the total Jllll waveform is completed, the measurement waveform of one beat of 12 leads is displayed and measured. This measurement is
is entered into the measurement value master file, and this measurement (
/i By reading the master file and specifying ``Delete'' from the menu screen, it will be displayed on the C117 screen, and a hard copy will be printed on the printer.

The measurements taken by the autopsy are the basis for the Minnesota Co.
+ Compared to 4f+, heart rate, rhythm, axis deviation, hypertrophy.

Mental disorder, &J! The name of the diagnosis such as blockade and a comment are displayed, and the deviation is displayed in color on the heart diagram.

This makes it possible to visually and intuitively judge the regional functions of the heart and apply it to diagnosis and treatment.

Next, an electrocardiogram waveform recording device according to a second aspect of the present invention will be described.

The electrocardiogram IA waveform recording device of the present invention sends 12 biological signals input from an electrocardiograph to a personal computer via an interface device for analysis, and automatically records electrocardiogram waveforms based on the results. It is something to do.

FIG. 1 is a block diagram showing an example of an electrocardiogram waveform recording device according to the present invention. At the same time 11'a, the electrocardiograph determines the waveform of each lead site 411 and displays the Δ11 constant data on the analog signal -. For waveform measurements, electrodes are attached with standard 12 leads, 6 limb leads and 6 thoracic leads.

Furthermore, a commercially available electrocardiograph may be used, and a specific example is a multi-purpose electroencephalograph, model IAQ6, manufactured by Sanei 411 Base.

A personal computer is connected to the recorder output terminal r- of the heart monitor via an interface device.

In the present invention, the interface device performs the function of converting the analog signal 5) of measurement data displayed by the electrocardiograph into digital signal and sending it to the personal computer.

The interface device is a +2C11 multiplexer.

It consists of a preamp agent control unit, 11s 232C unit 1, etc.

+2[:I+ multiplexer is a device that switches 12 channels of input into one channel-by-channel input and takes in an analog signal from an electrocardiograph. The switching time is 50 S l:C.

The preamplifier (preamplifier) outputs No. 411 taken in by the +2[:11 multiplexer.

12biL^-D converter (AD converter) (preamplifier).

The intelligent control unit (data acquisition control device) controls the +2C11 multiplexer [goals, switches channels, activates the A-D converter, captures data for 12 channels, controls the ls232G unit, and outputs the personal data. Computer (Panafacom C-7 11 +1
Send data to [ID).

11s2]2C unit is an interface conforming to the RS232C standard, and is a connector for connecting an interface device and a personal computer.

next. An example of the specifications of the interface device used in the present invention is as follows: Human power channel 12 channels Human impedance 1 OKΩ A/D conversion time 2flO g/secA
/D conversion accuracy is 12 bits.

FIG. 2 shows a circuit diagram of the interface device.

Further, FIG. 3 shows a structure 1&, [X representing an example of a control unit of an analog-to-digital converter.

Here are the specifications.

CPtJ: 8086-2 8M
Ilz (16t+im) ROM: 96KB
yte RAM: 640Kllyte (M
ain II memory) 1・DD: 51
NCII 6.4MIlx 2ADC: 12
bit input ±25On+V In the present invention, a personal computer is connected to an interface device, performs Ni calculation of all constant data sent from the interface device, and calculates the deviation between the measurement 4+fi and the base pass value in a 1/2 scale map by color. indicate.

A personal computer consists of a computer main body, a color display, a key fob, a l O M +1 fixed task device, a printer, etc.

A specific example of a personal computer used in the present invention is an OA personal computer C-7 [10+].
l), memory 2'55K [I~38.+KI3 are listed.

Next, 41 types of the personal computer used in the present invention are shown below.

○Computer main body memory capacity; IIOM 8Kl<it.

Hide color C It'r output to RAM 384 6 old IX480 Tuto Palout function Simultaneous 8 color display Printer output 24 x 241 nits 1211C
llS force rental [1 tsuku internal 1 internal organs IIi. Source A f: I II II V ±
l II % power consumption 0.9KV8i'l;; +1j23 kg large
48tl(W)X 44
5 (D)
Color screen configuration Craft screen x 9 + character screen Power supply 801O (Jv±10
%Consumption゛tonne force'l 11 V to less'''T
”,' !+:: l 2 kg Size: 12[]
(It) x 415 (D)
Keyboard layout Standard, ll5 (with numeric keypad) Output data JI38 human code (parallel) Sen-raj, 2. :Ikg ○l fl M +1 fixed disk device storage capacity jib,
l Q Megahide data capacity'+::
l [1 old) Human Q printer printing speed 80 characters/second printing power type Dotsutoma) ~ Refusin Puff 1
Bidirectional printing Number of characters 80 characters/line 66 lines/beige tun Xi AClfllllV±10% consumption゛city power 120VA;6. :,t
u+k,,-size
57[1(W)x 455(D)x
175 (It) Next, a method for recording an electrocardiogram waveform using the electrocardiogram [2 waveform recording neck device of the present invention] will be described. FIG. 4 is a flowchart showing a method for recording the waveform of Xin'tun [A]. In the same No. 41'A, first, the constant data of 12 channels manually input from the electrocardiograph was transferred to the personal combination JL via the interface device.
-Take it in the evening.

11+11 constant condition is one acquisition time fixed at 5 seconds (4
, 88rmscc, x 11124), and set the number of captures in the range of 1 to 6 times.

Next, the number of times of acquisition is set, and the 411 constant data is stored in the main memory of the personal computer C-7000D from the electrocardiograph in real time via the interface device. At this time, calculations are performed simultaneously.

Number of channels: 12 channels Sampling clock: 4.8 ms Number of sampling clocks: 1024 points/channel Based on the calculation results, the measured waveform of each lead (12 leads) (14
Repeat the setting process to select '(1'). Total Ml
The selection conditions for laryngeal shape are 3 beats from the beginning of the captured waveform]
” (3rd exit) is taken as the measurement waveform, but if there is a waveform that is different from 3 beats for the set number of times [1, then that is taken as the measurement waveform. Next, select a total of 4 III waveforms or 12 when finished.
The total waveform of one beat of the lead is displayed and □it a. This measurement value is stored in the 11111 planting master file.
1: Load this measurement frli master file and select menu 1. By specifying positive from one screen, it will be displayed on both sides of the CIIT, and a hard copy will be printed on the printer.

The ΔIII constant value taken by the laboratory test is that of Minnesota Court)
, (compared with semi<fi, and the deviation is displayed in color on the heart diagram.

[Example] Next, the present invention will be explained in more detail with reference to Examples.

Example 1 A personal computer (None = 1 reel, Banafacom C-7t+ 00D)
The electrocardiogram waveform was recorded using the device connected to the process shown in Table 1.

In addition, in Table 2, the approximate yellow color of Meny-'L-No.

Table 2 [Process p +i "f" (d) Examiner's O, record menu N (specify 1, 1, examiner's NUMllll
Mi1(・N A M +:・1llIiTIID8Y・
Manually write F-M and register it on a floppy disk.

Other menus include examiner's N II M 11 E I+
If you enter this manually, NAME-AGE-F-M will be automatically displayed.

0 seconds data display/import start menu Specify No. 2 and press DATA INIIUT
Input OKY/N Y to start importing. Specify an arbitrary number of C0UNT for the capture time. l C0U
NT (5 seconds) while loading, 5TOP KE for middle 1st
Press Y, then enter Y again to restart.

○If you specify the 12-lead original waveform display menu No. 3, the waveform screen will be displayed.

When the loading of the arbitrary set number of C0UNT is completed, the original waveform of 12-lead l C0INT['+ (5 seconds) is automatically displayed.

To display the setting C0UNT number, set C0IINT 6-1 to 2
If you change it to , it will be displayed for 6 to 10 seconds.

C0UNT a is 1 to 6 (:0UNT (:10 seconds)
This is within the range.

The calculation waveform settings are ~V for each lead from the first displayed waveform,
, ) to analyze the 3 beats 11 of
If there is an abnormal wave from the quasi wave during 0UNT, that abnormal wave will be displayed and analyzed.

1ifflb (limb 1 transmission) and c l + c s L (chest talk 4) of Menu No. 3 can be selected and displayed.

0 Oil waveform display menu -'L - If you specify NO, 4, the calculated waveform (1 beat)
Leads 12 and 4 are displayed simultaneously.

DAT8Ohege/N) Yte is starting i calculation.

ii After completing J calculation, limb (+, IMD) - chest (C'llF
, ST) and enlarge it.

Menu: L No. 4 cl+csL (chest lead) and limb (limb lead) can be selected and displayed.

○ If you specify calculation result display menu No. 5, the result of comparison with the il measurement (fi and Minnesota coat) 1 (electricity value) will be displayed.

0 car deviation display If menu number 6 is specified, the axis deviation will be displayed.

O boundary wall display If you specify menu number 7, it will be the front wall and side wall.

The rear wall, outer wall, and outer wall are displayed at the same time.

Depending on the comments, each of the 11 totals will be displayed in the following five levels according to color.

1=Yellow/Normal 2=Green/Caution required 3=Slight abnormality 4=Pink/Medium 9 degree abnormality 5=Red/Altitude abnormality You can select and enlarge the outer wall.

The front wall, side IF, rear +;=, and bottom wall of menu No. 7 can be selected and displayed.

○ When the calculation display menu No. 8 is specified, the examiner's calculated values of 6 waves for each lead (IP average value) are displayed.

As a specific example, Tables 3 and 4 show calculated values obtained by measuring a 25-year-old V3 child.

Table 3 shows the heartbeat, and Table 4 shows the waveform height and amplitude of the electrocardiogram IA.

0 Test registration deletion menu N (Specify 1 or 9 to delete tester data.

0 Minnesota Court List Menu No. If Ifl is specified, the examiner's Minnesota court list is displayed.

[departure]! Effect of 1] Part 1- Theory IJI L, TaJ Puni Book 9! = III's heart'
The method of recording the waveform of the +lZ diagram and its device have excellent effects as described in F because the electrocardiogram waveform can be displayed and recorded in different colors on the heart diagram.

(1) Determining the waveform of the heart chart Purpose 1 Objective display is IIT
By doing so, it is possible to visually and intuitively understand the waveform analysis results, and also to observe cardiac function.

(2) As a clinical application of the present invention, it is possible to analyze the electrocardiogram waveform of the examiner, measure the cardiac function, and observe the progress of diagnosis and treatment by comparing it with the half value. , this) 1 (Clinical examination of heart 1 field) is performed to compare how much the ECG IA waveform of the subject deviates from the waveform pattern of a normal person. It can be applied not only to treatment, but also to the examination of the function of the implanted heart and other areas.

(3) Since the electrocardiogram waveform is recorded and displayed in color χ11, the waveform can be measured accurately and visually.
There is no possibility of a constant error in δ1 caused by the measurer as in the conventional method.

(4) Recording of electrocardiogram waveforms can be performed automatically by a program.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of an electrocardiogram waveform recording device of the present invention, FIG. 2 is a circuit diagram of an interface device,
Figure 3 shows one of the control units of the analog-to-digital converter.
A configuration diagram showing an example and FIG. 4 are a flowchart showing a method of recording an electrocardiogram waveform. Figure 3 E-E-G 60Hz
00v Figure 4

Claims (2)

[Claims] (1) Measure the electrocardiogram waveform of each lead site input from the electrocardiograph for a certain period of time, perform calculations to obtain the measured waveform, compare the measured value of the measured waveform with the standard value of the Minnesota code, and calculate the deviation. A method for recording an electrocardiogram waveform, which is characterized by displaying the electrocardiogram in different colors. (2) An electrocardiograph that displays the measurement data of each lead site as an analog signal, an interface device that takes in the analog signal and converts it into a digital signal, and an interface device that takes in the digital signal and calculates the measurement data and compares it with the reference value. 1. An electrocardiogram waveform recording device comprising a personal computer that displays deviations in different colors on a cardiogram.