JPH11137528A - Electrocardiogram confirmation system and method - Google Patents

Abstract

(57) [Summary] [PROBLEMS] Apparatus that can visually confirm collected data from an electrocardiogram electrode or the like of a Holter recorder 200 without troublesome connection of a troublesome cable or the like, and can easily recognize an abnormal mounting or the like. I will provide a. SOLUTION: The Holter recorder 200 has an induction code 25.
In accordance with the electrocardiogram information collected from the electrocardiogram electrode connected to “0”, the built-in infrared element is made to emit light and is transmitted to the electrocardiogram confirmation device 100 wirelessly. The electrocardiogram confirmation device 100
By receiving the transmitted light information and displaying it on the display screen of a built-in display, it is possible to visually check whether the collected information is normal, and to mount the corresponding ECG detection electrode depending on whether the display is normal. Can be easily recognized as normal or abnormal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrocardiogram confirmation system capable of easily confirming whether or not electrocardiogram information of the portable long-term electrocardiogram information recorder (hereinafter referred to as "holter recorder") is normally collected. It is about the method.

[0002]

2. Description of the Related Art In many cases, transient angina attacks that occur in daily life or at bedtime cannot be detected by normal resting electrocardiography or stress electrocardiography. . For this reason, a holter recorder that collects an electrocardiogram of a subject for a long time is attached to the subject to record electrocardiogram information for a long time.

However, this Holter recorder needs to be worn by a subject at all times for a long time, for example, 24 hours to record electrocardiogram information, so that it must be small and light as much as possible, and the operating time is also short. While it is necessary to secure 24 hours or more and the need for low power consumption is high, the Holter recorder must be worn by the subject for as long as 24 hours, for example, and the recording ends. A state in which the collected electrocardiogram is later input to another electrocardiogram information analyzer and the electrocardiogram information has not been normally collected must be avoided by all means.

[0004] However, it is difficult to provide a display or the like for confirming collected electrocardiogram information due to a demand for a smaller and lighter Holter recorder or lower power consumption. Therefore, it was not possible to confirm, for example, whether or not the electrocardiogram electrodes were properly attached by using the Holter recorder alone.

In view of the above points, for example, in a conventional Holter recorder, it was confirmed by the method shown in FIG. 7 whether or not the ECG electrodes and the like were properly mounted. A method of checking the mounting state in a conventional Holter recorder will be described with reference to FIG.

In order for the Holter recorder 10 to record the electrocardiogram information of the subject 15, first, the electrocardiogram electrode 13 at the tip of the lead cord 12 is attached to a predetermined portion of the living body of the subject 15, and the lead 15 is led out to the lead cord 12. The measured electrocardiogram information is input to the Holter recorder 10 via the patient input code 11.

[0007] Recording may be started in this state, but if the mounting state of the electrode 13 is defective as described later, desired recording will not be performed. For this reason, in the conventional Holter recorder, a monitor connector 16 for outputting collected electrocardiogram information is provided. A special monitor adapter 17 is connected to the monitor connector 16 of the Holter recorder. The electrocardiogram collected by connecting the plug 25 of the limb lead of the electrocardiograph 20 is displayed on the electrocardiograph 20.
Was displayed on the display screen 21 to check the mounting state of the electrodes 13.

However, the above-described monitor adapter 17 has a complicated connection method and is cumbersome to handle.

As a result, there has been a long-awaited realization of an apparatus capable of securely and reliably checking the mounted state of the electrodes of the Holter recorder without any troublesome operation.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a simple configuration, and can easily and safely collect electrocardiogram information from a portable long-time electrocardiogram information recorder with a simple operation. It is an object of the present invention to provide an electrocardiogram confirmation system capable of confirming whether or not the operation has been performed.

[0010]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has, for example, the following arrangement as one means for solving the above-mentioned problems.

That is, collecting means for collecting electrocardiogram information;
The portable long-time electrocardiogram information recording, comprising: a conversion unit that converts collected information of the collection unit into corresponding digital information; and a light emitting unit that emits light to transmit the converted digital information of the conversion unit to the outside as a corresponding optical signal. Device, light receiving means for receiving light from the light emitting means and converting it to a corresponding electric signal, and display means for visually displaying electrocardiogram information from the portable long-time electrocardiogram information recorder from the light receiving means. Having a recorder information confirmation device provided, and by referring to the display screen of the recorder information confirmation device, it is possible to confirm whether ECG information is normally collected from the portable long-time ECG information recorder. It is characterized by doing.

[0012] For example, the portable long-term electrocardiogram information recorder further switches desired information among the electrocardiogram information and the setting state of the portable long-term electrocardiogram information recorder and other collected information to the light-emitting means. And transmission information selection means for supplying light to the device and causing it to emit light.

Further, for example, the light emitting means emits infrared light, and the other collected information of the portable long-time electrocardiogram information recorder includes recorder setting information. Alternatively, the light emission information from the light emitting means is emitted at predetermined time intervals, and at least a header portion indicating transmission data, a transmission byte number indicating portion indicating a transmission data length thereafter, and a setting setting state of the recording device. Recorder setting information section,
Light emission is transmitted in a transmission format including an electrocardiogram information section and a checksum data section.

Further, for example, the portable long-time electrocardiogram information recorder is characterized in that the collected information is emitted from the light-emitting means for a certain time after the power is turned on.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing an example of the configuration of an electrocardiogram confirming system according to an embodiment of the present invention, and FIG.
FIG. 3 is a block diagram showing a detailed configuration of the recorder of FIG. 1; FIG. 4 is a diagram for explaining a function of the recorder in the present embodiment;
FIG. 5 is a diagram illustrating an example of a communication format in infrared transmission and reception according to the present embodiment, and FIG. 6 is a diagram illustrating a display example on a display screen of the electrocardiogram confirming device according to the present embodiment.

Hereinafter, an embodiment of the present invention according to the present invention will be described in detail with reference to FIGS.

A schematic configuration of an electrocardiogram confirmation system according to an embodiment of the present invention will be described with reference to FIG.

In FIG. 1, reference numeral 100 denotes a Holter recorder 20.
An electrocardiogram confirming apparatus for confirming an operation state including an electrode mounting state of 0, 200 is a Holter recorder, 300 is an electrocardiograph, and the Holter recorder 200 of the present embodiment is a conventional Holter recorder shown in FIG. Since a monitor adapter is also provided to enable the user to check the mounting state as in the case of the recorder, the monitor adapter is used to check the mounting state using this monitor adapter.

Reference numeral 250 denotes a lead cord to which an ECG electrode for collecting ECG information is connected. Reference numeral 260 denotes a flash memory card for recording collected data of the Holter recorder 200, which has a storage capacity capable of storing collected data for 24 hours, for example, a storage capacity of 40 Mbytes. Reference numeral 270 denotes an input / output device that can be connected as an option, and corresponds to, for example, a respiratory data collection unit.

With the above configuration, the Holter recorder 200 of the present embodiment can transmit collected data as infrared data from an infrared light emitting element having a built-in data.
Further, the electrocardiogram confirming device 100 has a built-in light receiving element for receiving the infrared data, and is configured to be able to receive the light with the light receiving element and display the content of the infrared data from a display screen of a built-in display. I have. Therefore, by checking this display screen, it can be easily checked whether or not the electrocardiogram information is correctly displayed.
It is possible to confirm the mounting state of the electrocardiogram electrode 0 and the like.
The details will be described below.

Next, the details of the electrocardiogram confirming apparatus 100 will be described with reference to FIG. In FIG. 2, reference numeral 110 denotes the LCD control unit 1 which receives the reception data from the infrared receiver 120 and
The CPU is sent to the CPU 40 and converted into selected image data corresponding to the LCDVRAM 145 to draw the image data. CPU11
0 performs various controls in accordance with the control procedure stored in the ROM 115.

Reference numeral 115 denotes a ROM in which a control procedure of the CPU 110 and the like are stored. Reference numeral 120 denotes an infrared receiver for receiving infrared data from the Holter recorder 200 and converting it into a corresponding digital electric signal. Reference numeral 130 denotes an SRAM for temporarily storing received data and data being processed, and in this example, 128 Kbytes Storage capacity. It goes without saying that the storage capacity of the SRAM 130 may be larger.

Reference numeral 140 denotes an L for controlling the display of the display 150.
A CD control unit, for example, receives display data corresponding to the received data from the CPU 110 and records and draws it on the LCD VRAM 145 as display pattern data to be displayed on a display screen. Then, the recording pattern of LCDVRAM 145 is displayed on LCD display device 150. Also, 15
0 is an LCD display device.

Reference numeral 160 denotes a real-time clock (RTC)
And outputs the measured time. The RTC 160 is backed up by a lithium battery, and keeps time and other information even when the power is turned off. To use the backup function by this lithium battery, RT
The C160 has a built-in SRAM (not shown), which stores management information such as the reservation status of the recorder to prevent such management information from being erased when the power is turned off.

Reference numeral 170 denotes a buzzer 17 under the control of the CPU 110.
A buzzer control circuit 175 for performing the sound control 5 is a buzzer. Reference numeral 180 denotes a three-channel A / D converter for confirming the analog electrocardiogram data of another Holter recorder having no infrared output unit with the electrocardiogram confirming apparatus 100 of the present embodiment. Thus, 3 channel A
Since the / D converter 180 is directly connected to the monitor output terminal of another Holter recorder that does not have an infrared output unit by a signal line, even a Holter recorder that does not have an infrared output unit does not use an electrocardiograph. You can check the electrocardiogram.

Reference numeral 190 denotes a serial input / output unit that can be connected as an option, and can be attached when digital data is to be output via, for example, a wired cable in addition to infrared input. For example, the operation of the recorder and the flash memory card can be confirmed by connecting to the Holter recorder shown in FIG. The serial input / output unit 190
The setting of the recorder can also be performed by using. Furthermore, it is also possible to connect to a computer such as a personal computer to manage the management information of the recorder.

The electrocardiogram confirming apparatus 100 is configured to be driven by a battery (AA alkaline battery). Therefore, it is possible to receive and display the collected data from the Holter recorder 200 without connecting a cable or the like, and to easily confirm the status of the Holter recorder 200 without troublesome cable connection. Is possible.

Next, the detailed configuration of the Holter recorder 200 will be described with reference to FIG. In FIG. 3, reference numeral 201 denotes a CPU that controls the entire Holter recorder 200;
Various controls are performed in accordance with the control procedure for realizing the functions shown in FIG. 202 is the CPU 20
A ROM for storing the first control procedure and the like, and a static RAM (SRAM) 203 for temporarily storing the progress of processing and the like.

The flash memory card 260 is connected to a flash memory interface (I / I / O) 204 for controlling an interface with the flash memory card 260.
F) and 205 are real-time clocks (RTCs) for outputting clock times.

In the present embodiment, when the electrocardiogram information is recorded for a long time, the time information can be recorded together, and the RTC 205 measures and updates the time for this purpose. In addition, this RTC 205 includes SR
AM is built in and backed up by a lithium battery. Therefore, the RTC that is always supplied with power is
205 updates time information. Furthermore, in the present embodiment, the setting information of the recorder is controlled to be stored in the SRAM, so that the setting information is retained even when the power is turned off.

Reference numeral 210 denotes an LCD display. The Holter recorder 200 is configured such that only a minimum display is possible as an LCD display in response to demands for reduction in size and weight and power consumption, and a predetermined time (for example, 10 minutes) after the power is turned on. ) Indicates the setting screen of the recorder and the RTC20.
5 is merely provided with a function of arbitrarily switching and displaying the time and clock information at RT5, and thereafter displaying the time and clock information at the RTC 205.

Reference numeral 220 denotes an analog-to-digital converter (A /
D conversion unit) which converts collected data as various analog signals from a living body into corresponding digital data and
Output to U201.

Reference numeral 230 denotes a pacemaker pulse detection circuit which monitors whether or not a pacemaker pulse is included in the electrocardiogram information collected from the electrocardiogram electrodes. INT) to output an interrupt signal.

Reference numeral 240 denotes a switch circuit for performing various settings, and a power switch (ON / ENTER).
R), a select switch for switching setting items, a cursor switch, an event switch, and the like.
As will be described later, the setting information set by the switch circuit can be displayed by the electrocardiogram check device 100.

Reference numeral 245 denotes an acceleration data collection unit for collecting acceleration data, and reference numerals 251 to 253 denote ECG electrodes 1 to 5 connected to the lead cord 250 shown in FIG.
n. Reference numeral 255 denotes a respiration data collection unit that can collect respiration data that can be connected as an option.

Further, 270 is provided with an infrared light emitting element 271, which causes the infrared light emitting element 271 to emit light in accordance with the collected biological information of the Holter recorder 200 and various setting information, and transmits it to the electrocardiogram confirming apparatus 100 as infrared data. It is. Reference numeral 280 denotes a serial communication unit capable of inputting / outputting the collected biological information of the Holter recorder 200, various setting information, and the like as serial data to / from the outside via a wired cable instead of an infrared ray.

The function of the Holter recorder 200 having the above configuration will be described with reference to FIG. CPU 201 is ROM
Various controls are performed according to the control procedure stored in the memory 202. The main function block 410 controls each block that implements various specific lower-level functions.

Reference numeral 420 denotes an electrocardiogram input / output block, which samples the electrocardiogram information from the electrocardiogram electrodes 251 to 253 at regular time intervals, converts the sampled information into a corresponding digital signal by the A / D converter 220, and sends the digital signal to the transmission control block 450. Handover, or transfer the RTC 20 to the flash memory 260.
The control for recording the measured time together with the time measured in 5 is performed.

Reference numeral 430 denotes a pacemaker detection block for detecting a pacemaker pulse from electrocardiogram information. Reference numeral 440 denotes a recording control block. The recording control block 440 is a predetermined time (for example, 10 minutes) after the power is turned on by, for example, a power switch (ON / ENTER). Recording starts automatically after elapses. Alternatively, it controls recording control such as control for recording collected data in the flash memory 260 when recording is forcibly started by an event switch.

Reference numeral 450 denotes a transmission control block for performing transmission control of the infrared transmission unit 260. In the embodiment of the present invention, turning on the power of the Holter recorder is performed only when an electrocardiogram electrode or respiration data is supplied to the subject. The optical communication data corresponding to the collected data is output via the infrared transmission unit 260 for a certain period of time, for example, 10 minutes after the power is turned on to the Holter recorder 200 since the detection unit is mounted. .

Reference numeral 460 denotes a block for controlling other inputs and outputs, such as output control to the LCD 210 and a switch circuit 2.
It controls input of 40 setting data.

The operation of the electrocardiogram confirmation system according to the present embodiment having the above configuration will be described. As described above, the Holter recorder 200 supplies power to each component of the recorder by turning on a power switch when various electrodes and the like are attached to the subject and the recording is enabled. Then, the transmission control block 45 for a certain period of time, in this embodiment, for 10 minutes.
0 in accordance with the transmission format {6 bytes (31250 bps)} shown in FIG. 5, for example, every 8 ms, and causes the infrared light emitting element 271 of the infrared transmitter 260 to emit light, and collects data and setting data of the Holter recorder 200 to the infrared transmitter. Sent from 260.

For this reason, the position of the electrocardiogram confirming device 100 is adjusted so that the collected data from the Holter recorder 200 can be received by the infrared receiver 120 of the electrocardiographic confirming device 100.
The light is received by the infrared receiver 120 of the electrocardiogram confirming apparatus 100.

The CPU 110 of the electrocardiogram confirmation device 100
The received light data is fetched and the LCD controller 140 is controlled to control the LCD VR in the form of corresponding dot pattern data.
Draw on AM145. Then, the drawing result is directly displayed on the display screen of the display (LCD).

As shown in FIG. 5, the 6-byte transmission data transmitted from the Holter recorder 200 every 8 ms, for example, has a header 501 (4 bits) indicating that it is transmitted data from the Holter recorder 200 at first. ), The number of bytes 502 (4 bits) representing the transmission data length thereafter, and the setting of the switch unit 240 of the Holter recorder.
Recorder setting information section (5 bits) 503 and dummy data 504 represented as bit ON / OFF data
(3 bits).

One bit in the recorder setting information (5 bits) is assigned as a pacemaker pulse detection flag which is set when the pacemaker pulse detection circuit 230 of the recorder 200 detects a pacemaker pulse.

When the respiration data is collected as an option, the respiration data transmission unit can detect the dummy data 504. By performing such control, respiration data can be transmitted without increasing the number of transmission bits as a whole. For example, if this part is all "1", it is possible to easily determine whether or not the respiration data has been transmitted by handling it as dummy data or exceptionally as respiration data.

Following the dummy data 504, the collected data from the ECG electrode is transmitted as 1 byte for one channel as 505 to 507 for three channels of three bytes in total,
Finally, this is a format in which 1-byte checksum data is stored.

In this embodiment, the Holter recorder 200 is used.
Transmits the transmission data in the format shown in FIG. 5 to the electrocardiogram confirming apparatus 100 continuously as serial data.
This is repeated at regular intervals (for example, at each sampling timing of electrocardiogram information) and transmitted. As described above, in the present embodiment, transmission is performed every 8 ms. As described above, the transmission is performed at regular time intervals, and the infrared light emitting element 271 is not caused to emit light during the other periods.

Although the transmission format is fixed in the example of FIG. 5, the ECG collection data portion can be increased or decreased according to the number of collected ECG information. As a result, the data amount as a whole may change, and the number of transmitted bytes is 5
02 is provided.

The electrocardiogram confirming apparatus 100 draws the received electrocardiogram information on the LCDVRAM 145 in a time-sequential manner each time it is received, and displays it on the display screen of the display device 150. Can be visually confirmed. FIG. 6 shows a display example of the display 150 of the electrocardiogram confirming apparatus 100.

As shown in FIG. 6, an electrocardiogram collected by the Holter recorder 200 can be displayed on a display screen, and when the display waveform is abnormal due to an incorrect mounting of an electrocardiogram electrode, this can be easily performed. Can be recognized. Also, by displaying the setting state together, the setting state can be confirmed, and it is easy to set the optimum setting state.

When the mounting state and the setting state are normal, the recording can be started by mounting the Holter recorder 200 on the subject. If a defect is found in the mounting state, the power switch of the Holter recorder 200 is turned off, the power is turned off, the mounting is performed again, and the above-described electrocardiogram check may be performed again. When the setting state of the switch circuit 240 or the like is changed, the setting state may be changed as it is.

When various detectors are optionally connected to the Holter recorder 200, data collected from these detectors is also output from the infrared transmitting unit 260 and displayed on the display 150 by the electrocardiogram confirming apparatus 100. Thereby, it is possible to confirm the mounting state of the optional detector.

As described above, in the embodiment of the present invention, since the light emitted from the infrared light emitting element 271 is received by the infrared light receiver 120, for example, even if there is a medical device in the vicinity, Even if the subject is equipped with a pacemaker, it does not have the adverse effect of using radio waves, and can be used safely in any location.

As described above, according to the present invention, it is determined whether or not electrocardiogram information has been normally collected from a portable long-time electrocardiogram information recorder with a simple configuration and with simple operation safely and reliably. Can be provided.

Also in this case, the collected data from the portable long-time electrocardiogram information recorder can be easily visually checked without troublesome connection of a troublesome cable or the like, and it is possible to easily recognize abnormal mounting and the like. .

[0058]

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration example of an electrocardiogram confirmation system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a detailed configuration of the electrocardiogram confirming device of FIG.

FIG. 3 is a block diagram showing a detailed configuration of the recorder of FIG.

FIG. 4 is a diagram for explaining a function of a recorder in the present embodiment.

FIG. 5 is a diagram showing an example of a communication format in infrared transmission and reception in the present embodiment.

FIG. 6 is a diagram showing a display example on a display screen of the electrocardiogram confirming device in the present embodiment.

FIG. 7 is a diagram for explaining a conventional method of checking the state of collecting electrocardiogram information.

Claims (6)

[Claims] 1. A collection unit for collecting electrocardiogram information, a conversion unit for converting the collection information of the collection unit into corresponding digital information, and a light emitting unit for transmitting the converted digital information of the conversion unit as a corresponding optical signal to the outside. The portable long-time electrocardiogram information recorder comprising: a light-emitting means for receiving light; a light-receiving means for receiving light from the light-emitting means and converting the light into a corresponding electric signal; and the portable long-time electrocardiogram information from the light-receiving means. A display device for visually displaying electrocardiogram information from the recorder, and a display device of the portable long-time electrocardiogram information recorder which is more normal by referring to a display screen of the recorder information confirmation device. An electrocardiogram confirmation system characterized in that it is possible to confirm whether or not electrocardiogram information has been collected. 2. The portable long-term electrocardiogram information recorder switches desired information among the electrocardiogram information and the setting state of the portable long-term electrocardiogram information recorder and other collected information to the light-emitting means. 2. The electrocardiogram confirmation system according to claim 1, further comprising transmission information selection means for supplying and emitting light. 3. The device according to claim 1, wherein the light emitting unit emits infrared light, and the other collected information of the portable long-time electrocardiogram information recorder includes recorder setting information. An electrocardiogram confirmation system according to any one of the above. 4. The portable long-term electrocardiogram information recorder,
The electrocardiogram confirming system according to any one of claims 1 to 3, wherein the collected information is emitted from the light emitting means for a predetermined time after power-on. 5. The light emitting information from the light emitting means is emitted at predetermined time intervals, at least a header portion indicating transmission data, a transmission byte number indicating portion indicating transmission data length thereafter, and a setting setting state of the recorder. The electrocardiogram confirmation system according to claim 3, wherein the light emission transmission is performed in a transmission format including a recorder setting information section, an electrocardiogram information section, and a checksum data section representing the following. 6. A method for confirming an electrocardiogram in a portable long-term electrocardiogram information recorder and a recorder information confirmation device capable of confirming a recording state of the portable long-term electrocardiogram information recorder, The time electrocardiogram information recorder transmits the collected state of the collected biological information as corresponding optical information by infrared light emitting means for a fixed time after power-on, the recorder information confirmation device includes display means, and the portable length By receiving the transmission light information from the time electrocardiogram information recorder and displaying it on the display means, it is confirmed whether or not the information collected by the portable long-time electrocardiogram information recorder is normal. An electrocardiogram confirming method, comprising: collecting collected information; and, if the information is not normal, mounting a collecting means such as an electrocardiogram electrode so that the corresponding biological information can be normally collected.