JP7638704B2 - Holter electrocardiogram recording device - Google Patents

Description

The present invention relates to a Holter electrocardiogram recording device.

One type of conventional electrocardiogram recording device is the Holter electrocardiogram recording device. Since the Holter electrocardiogram recording device needs to be worn by the patient for long periods of time, there is a demand for it to be small and lightweight in order to reduce the burden on the patient. Such a small and lightweight Holter electrocardiogram recording device is described, for example, in Patent Document 1.

The Holter ECG recording device is designed to perform ECG recording processing based on multiple processing setting values, specifically, processing setting values such as recording time, number of ECG leads, sampling frequency, etc.

JP 2016-043068 A

However, changing the processing settings to the desired values every time an inspection is performed is time-consuming. Also, if the processing settings are set incorrectly, there is a risk that the inspection will have to be performed again.

One way to avoid this kind of hassle and incorrect settings is to prepare multiple dedicated machines, each with different fixed processing settings, and then select the Holter ECG recording device that is most suitable for the test from among the multiple dedicated machines.

However, adopting this method would require either increasing the number of Holter ECG recording devices or reducing the types of tests available, which would impose a burden on operators of the Holter ECG recording devices (e.g., hospitals).

The present invention has been made in consideration of the above points, and provides a Holter ECG recording device that can reduce the effort required to change processing settings and reduce incorrect settings without increasing the number of Holter ECG recording devices or reducing the types of tests.

One embodiment of the Holter electrocardiogram recording device of the present invention is
an electrocardiogram recording unit for acquiring and recording an electrocardiogram;
A storage unit that stores processing setting values of the electrocardiogram recording unit;
a display unit capable of displaying the processing setting values;
an operation unit that outputs operation information corresponding to a user operation;
a control unit capable of selecting the processing setting value to be used in the electrocardiogram recording unit based on the processing setting value displayed on the display unit and operation information from the operation unit;
having
the storage unit stores a plurality of processing set value patterns each consisting of a combination of a plurality of types of processing set values among a recording format, a recording time, a recording channel, a sampling frequency, a drift filter, a pacemaker detection, and a pacemaker detection sensitivity;
The control unit can select one of the processing setting value patterns to be used in the electrocardiogram recording unit from among the multiple processing setting value patterns , and can independently change the processing setting values included in the selected processing setting value pattern .

According to the present invention, multiple processing setting value patterns, each consisting of multiple processing setting values, are stored, and further, any one of the multiple processing setting value patterns can be selected for use in the electrocardiogram recording unit. This reduces the effort required to change the processing setting values and the occurrence of incorrect settings, without increasing the number of Holter electrocardiogram recording devices or reducing the number of types of tests.

FIG. 1 is a perspective view showing the appearance of a Holter electrocardiogram recording device according to an embodiment; A block diagram showing the circuit configuration of a Holter electrocardiogram recording device according to an embodiment. FIG. 13 shows screen transitions according to an embodiment.

The following describes in detail the embodiments of the present invention with reference to the drawings.

<1> Overall Configuration FIG. 1 is a perspective view showing the appearance of a Holter electrocardiogram recording device according to an embodiment of the present invention.

The Holter ECG recording device 100 has a device body 110 and a battery cover 120 that is attached to the device body 110 so as to be freely opened and closed. The battery cover 120 is attached to the device body 110 via a rotating shaft 122.

The device main body 110 has a display unit 111, an event button 112a, an enter button 112b, and the like. The display unit 111 is composed of, for example, a liquid crystal display device. The user can switch the display and perform various settings by operating the event button 112a and the enter button 112b. When the event button 112a is pressed, electrocardiogram recording begins. Even if the event button 112a is not pressed, electrocardiogram recording begins automatically by a timer when a predetermined time (for example, 10 minutes) has elapsed since the power was turned on.

The battery cover 120 is provided with a locking portion 121. When the locking portion 121 is in the state shown in the figure, the battery cover 120 is in a locked state in which it cannot be opened. On the other hand, when the locking portion 121 is in a state in which it has been moved downward, the battery cover 120 is in an unlocked state in which it can be opened. The user can insert and remove the battery 151 (Figure 2) into and from the device main body 110 by setting the locking portion 121 to the unlocked state and opening the battery cover 120.

Figure 2 is a block diagram showing the circuit configuration of the Holter ECG recording device 100.

The Holter electrocardiogram recording device 100 has a CPU (Central Processing Unit) 131. The CPU 131 is connected to the display unit 111, the event button 112a, the enter button 112b, the ECG unit 133, the NAND flash memory unit 134, the SD card unit 135, the buzzer unit 136, the serial communication connector 137, and the acceleration detection unit 138, and controls these or receives signals from these units to perform predetermined processing.

The CPU 131 has a calculation unit 131a, a Ferroelectric Random Access Memory (FRAM) (registered trademark) 131b, and a Random Access Memory (RAM) 131c. The FRAM 131b stores programs and the like for the CPU 131 to execute predetermined processes. In the CPU 131, the calculation unit 131a reads the programs from the FRAM 131b and performs calculations according to the programs using the RAM 131c, thereby executing the predetermined processes.

FRAM 131b also stores processing settings for electrocardiogram recording. For example, the processing settings include recording format (compatible mode, normal mode), recording time, recording channel (12-lead, 2ch, 3ch), sampling frequency, drift filter (ON, OFF), pacemaker detection (ON, OFF), pacemaker detection sensitivity, etc.

These are primarily used as processing setting values for the ECG section 133 and the CPU 131.

Electrodes attached to the patient are connected to the ECG connector 132.

The ECG unit 133 performs predetermined processing, such as sampling and filtering, on the electrocardiogram signal input from the ECG connector 132 to obtain an electrocardiogram.

The NAND flash memory unit 134 stores the electrocardiogram acquired by the ECG unit 133.

An SD card is inserted into the SD card section 135. The CPU 131 can write the electrocardiogram acquired by the ECG section 133 to the SD card. The CPU 131 can also read information written to the SD card. For example, if processing setting values for recording an electrocardiogram are written to the SD card, the processing setting values can be read from the SD card and stored in the FRAM 131b.

The buzzer unit 136 is controlled by the CPU 131 and can notify the patient or operator by emitting a buzzer sound when, for example, the patient presses the event button 112a while an electrocardiogram is being recorded or when an error occurs in the device.

The serial communication connector 137 is connected to an external device such as an external analysis device or a personal computer via a cable, and can output, for example, the electrocardiogram stored in the NAND flash memory unit 134 to an external analysis device. In addition, the above processing setting values can also be input via the serial communication connector 137. 4

The acceleration detection unit 138 detects the body movement of the patient wearing the Holter ECG recording device 100 as acceleration. The detection results are stored in the NAND flash memory unit 134 or an SD card.

<2> Storage, display and change of processing setting values As described above, the Holter ECG recording device 100 of this embodiment is configured to store in the FRAM 131b the processing setting values of the ECG section 133 and the CPU 131. The ECG section 133 and the CPU 131 function as an ECG recording section that acquires and stores an ECG.

The processing setting values can be input via the SD card unit 135. The processing setting values can also be input from the serial communication connector 137. Furthermore, the processing setting values can be selected and changed using the display unit 111, the event button 112a, and the enter button 112b.

The processing setting values are input and stored in the Holter ECG recording device 100 before a Holter ECG recording test using the Holter ECG recording device 100 is started. The processing setting values are input and stored in the Holter ECG recording device 100, for example, by the seller of the Holter ECG recording device 100, for example, when the Holter ECG recording device 100 is shipped or before operation begins. The processing setting values are also input and stored by the user of the Holter ECG recording device 100 or by hospital personnel operating the Holter ECG recording device 100.

As mentioned above, the processing settings include the recording format (compatible mode, normal mode), recording time, recording channel (12-lead, 2ch, 3ch), sampling frequency, drift filter (ON, OFF), pacemaker detection (ON, OFF), pacemaker detection sensitivity, etc.

The Holter ECG recording device 100 of this embodiment is capable of storing a plurality of processing setting value patterns, each of which is made up of a plurality of processing setting values, as processing setting values. In this embodiment, the Holter ECG recording device 100 is capable of storing five processing setting value patterns (i.e., a first processing setting value pattern, a second processing setting value pattern, a third processing setting value pattern, a fourth processing setting value pattern, and a fifth processing setting value pattern).

A more specific explanation will be given. The first process setting value pattern, ..., the fifth process setting value pattern each differ in at least one of the multiple process setting values that make them up. For example, the first process setting value pattern differs from the second process setting value pattern in the recording time and recording channel, but the other process setting values are the same. Note that the first to fifth process setting value patterns may be exactly the same.

By storing multiple processing setting value patterns in this way, the Holter ECG recording device 100 allows the user to select the desired one from the multiple processing setting value patterns when performing a Holter ECG recording test.

Figure 3 shows the display procedure of the Holter ECG recording device 100 for selecting a processing setting value pattern and changing the processing setting values. The display procedure of Figure 3 is realized by the CPU 131 executing a display program stored in advance.

When the Holter ECG recording device 100 is turned on, it first displays the menu screen G0.

When the user selects "OK" by pressing the enter button 112b on the menu screen G0, the Holter ECG recording device 100 enters a state in which it waits for the user to press the event button 112a. In this state, when the user presses the event button 112a or when a predetermined time has elapsed, the Holter ECG recording device 100 starts a Holter ECG recording test.

On the other hand, when the user presses the event button 112a on the menu screen G0 to select the item "Recording Settings," "Subject ID," "Display Settings," or "Clock," and then presses the enter button 112b, a screen is displayed for confirming or changing the content of the selected item. Since this embodiment is particularly characterized by "Recording Settings" (i.e., selection and change of processing setting values), the following explanation will be given for the case where the "Recording Settings" item is selected by the user.

When the user selects "Recording Settings" on the menu screen G0, the Holter ECG recording device 100 displays the recording settings screen G1.

The recording setting screen G1 displays the contents of the process setting values of the process setting value pattern currently being read from the FRAM 131b by the CPU 131. In the example shown in the figure, the contents of the process setting value pattern No. 1 out of the five process setting value patterns No. 1 to No. 5 are displayed.

The process setting value pattern to be displayed on the recording setting screen G1, that is, the process setting value pattern currently being read out from the FRAM 131b by the CPU 131, can be selected using the event button 112a and the enter button 112b. Specifically, the cursor is moved to the position of the setting number using the event button 112a, and the setting number is selected by the number of times the enter button 112b is pressed. For example, from a state in which the contents of the process setting value pattern No. 1 are displayed as shown in the figure, the cursor is moved to the position of the setting number using the event button 112a, and the contents of the process setting value pattern No. 2 are displayed by pressing the enter button 112b once, and when it is pressed twice, the contents of the process setting value pattern No. 3 are displayed.

In this way, in the Holter ECG recording device 100, the user can operate the event button 112a and the enter button 112b while viewing the recording setting screen G1 to select the processing setting value pattern to be read from the FRAM 131b, and can check the contents of that processing setting value pattern on the recording setting screen G1.

If the user thinks that it is OK to perform a Holter ECG recording test using the processing setting value pattern displayed on the recording setting screen G1, the user selects "OK" on the recording setting screen G1. This returns the user to the menu screen G0, where the user can select "OK" again.

On the other hand, if the user wishes to change the processing setting values displayed on the recording setting screen G1, the user can simply select "Details" displayed on the recording setting screen G1. In this way, the Holter electrocardiogram recording device 100 allows the user to change the processing setting values on the subsequent recording mode setting screen G2, ECG setting 1 screen G3, ECG setting 2 screen G4, and pacemaker setting screen G5.

A more specific explanation will be given. In the example of FIG. 3, when the user selects "Details" on the recording setting screen G1, the Holter ECG recording device 100 displays the recording mode setting screen G2. On the recording mode setting screen G2, the recording format and recording time can be changed. For example, either normal or compatible can be selected as the recording format. For the recording time, 24 hours or 2 to 7 days can be selected. When the user selects return after the processing setting value has been changed, the Holter ECG recording device 100 displays the setting change confirmation screen G10. When the user selects return after the processing setting value has not been changed, the recording setting screen G1 is displayed. When the right arrow is selected, the ECG setting 1 screen G3 is displayed.

In the ECG setting 1 screen G3, the recording channel, sampling frequency, and drift filter can be changed. For example, 12-lead, 2-channel, or 3-channel can be selected as the recording channel. When the user selects return after the processing setting values have been changed, the Holter ECG recording device 100 displays the setting change confirmation screen G10, when the user selects return after the processing setting values have not been changed, the recording setting screen G1 is displayed, when the right arrow is selected, the ECG setting 2 screen G4 is displayed, and when the left arrow is selected, the recording mode setting screen G2 is displayed.

In the ECG setting 2 screen G4, the sensitivity of 12 leads, 2ch, and 3ch can be changed. When the user selects return after the processing setting values have been changed, the Holter ECG recording device 100 displays the setting change confirmation screen G10, when the user selects return after the processing setting values have not been changed, the recording setting screen G1 is displayed, when the right arrow is selected, the pacemaker setting screen G5 is displayed, and when the left arrow is selected, the ECG setting 1 screen G3 is displayed.

In the pacemaker setting screen G5, detection, channel 1, channel 2, and level can be changed. When the user selects return after the processing setting values have been changed, the Holter ECG recording device 100 displays the setting change confirmation screen G10, when the user selects return after the processing setting values have not been changed, the recording setting screen G1 is displayed, when the right arrow is selected, the recording mode setting screen G2 is displayed, and when the left arrow is selected, the ECG setting 2 screen G4 is displayed.

In the setting change confirmation screen G10, the user can select whether to save and use the processing setting values changed in screens G2 to G5, to use them only this time without saving them, or to not change them. For example, if any of the processing setting values included in the processing setting value pattern No. 1 is changed and the user selects "save and use," the Holter ECG recording device 100 uses the processing setting value pattern No. 1 that includes the changed processing setting values as the processing setting value pattern for the current Holter ECG recording test, and saves the changed processing setting value pattern No. 1 in the FRAM 131b.

In contrast, if any of the processing setting values included in the processing setting value pattern No. 1 is changed and the user selects "Do not save, use this time only," the Holter ECG recording device 100 uses the processing setting value pattern No. 1 that includes the changed processing setting value as the processing setting value pattern for the current Holter ECG recording test, but does not save the changed processing setting value pattern No. 1 in the FRAM 131b (i.e., the processing setting value pattern No. 1 before the change is stored as is).

As described above, according to this embodiment, the device includes an electrocardiogram recording unit (CPU 131, ECG unit 133) that acquires and records an electrocardiogram, a memory unit (FRAM 131b) that stores processing setting values for the electrocardiogram recording unit, a display unit 111 that can display processing setting values, an operation unit (event button 112a, enter button 112b) that outputs operation information according to user operations, and a control unit (CPU 131) that can select processing setting values to be used in the electrocardiogram recording unit based on the processing setting values displayed on the display unit 111 and the operation information from the operation unit. The memory unit stores multiple processing setting value patterns (No. 1 to No. 5), each of which is made up of multiple processing setting values. The control unit can select one of the processing setting value patterns to be used in the electrocardiogram recording unit from the multiple processing setting value patterns.

This allows the corresponding electrocardiogram recording test to be performed simply by selecting the processing setting value pattern, reducing the effort required to change the processing setting values and preventing incorrect settings. As a result, the effort required to change the processing setting values and incorrect settings can be reduced without increasing the number of Holter electrocardiogram recording devices or reducing the types of tests.

In addition, according to this embodiment, the display unit displays a pattern selection screen (recording setting screen G1) on which one of the processing setting value patterns can be selected, and multiple detailed processing setting value selection screens (screens G2 to G5) to which multiple processing setting values included in one processing setting value pattern are assigned.

In addition, according to this embodiment, the pattern setting screen (recording setting screen G1) displays an aggregate of representative processing setting values among the processing setting values displayed on multiple detailed processing setting value selection screens (screens G2 to G5).

This allows the user to instantly check the processing setting values to be used in the upcoming Holter ECG recording test on the pattern selection screen (recording setting screen G1) without having to switch screens, and allows the user to quickly change the processing setting value pattern. In addition, the user can select and change the processing setting values on multiple detailed processing setting value selection screens (screens G2 to G5).

In addition, according to this embodiment, the display unit 111 further displays a save selection screen (setting change confirmation screen G10) that allows the user to select whether to use the processing setting value pattern including the changed processing setting value at least once in the electrocardiogram recording unit or to save it in the memory unit.

This means that when performing an irregular Holter ECG recording test, you can choose to use the processing setting value pattern containing the changed processing setting value only once, eliminating the need to reset the processing settings the next time.

In addition, according to this embodiment, when a setting change is made on the detailed processing setting value selection screen (screens G2 to G5) and operation information indicating the end of selection is input from the operation unit (event button 112a, enter button 112b), the control unit (CPU 131) displays the save selection screen (setting change confirmation screen G10), and when no setting change is made on the detailed processing setting value selection screen (screens G2 to G5) and operation information indicating the end of selection is input from the operation unit (event button 112a, enter button 112b), the control unit (CPU 131) displays the pattern selection screen (recording setting screen G1).

This reduces the time required for screen transitions.

The above-described embodiments are merely examples of the implementation of the present invention, and the technical scope of the present invention should not be interpreted in a limiting manner based on these. In other words, the present invention can be implemented in various forms without departing from its gist or main characteristics.

In the above embodiment, the FRAM 131b is used as a storage unit for storing the processing setting values of the electrocardiogram recording unit (ECG unit 133, CPU 131), but the present invention is not limited to this, and a storage unit other than the FRAM 131b may be used. Also, in the above embodiment, the event button 112a and the enter button 112b are provided as the operation unit, but the operation unit is not limited to this, and for example, the display unit 111 may be configured as a touch panel and operation information may be output from the display unit 111.

The present invention is widely applicable to Holter ECG recording devices that allow the processing settings of Holter ECG recording tests to be changed.

REFERENCE SIGNS LIST 100 Holter electrocardiogram recording device 110 Device body 111 Display unit 112a Event button 112b Enter button 120 Battery cover 121 Lock unit 122 Rotating shaft 131 CPU
131a Arithmetic unit 131b FRAM
131c RAM
132 ECG connector 133 ECG section 134 NAND flash memory section 135 SD card section 136 Buzzer section 137 Serial communication connector 138 Acceleration detection section 151 Battery

Claims (7)

an electrocardiogram recording unit for acquiring and recording an electrocardiogram;
A storage unit that stores processing setting values of the electrocardiogram recording unit;
a display unit capable of displaying the processing setting values;
an operation unit that outputs operation information corresponding to a user operation;
a control unit capable of selecting the processing setting value to be used in the electrocardiogram recording unit based on the processing setting value displayed on the display unit and operation information from the operation unit;
having
the storage unit stores a plurality of processing set value patterns each consisting of a combination of a plurality of types of processing set values among a recording format, a recording time, a recording channel, a sampling frequency, a drift filter, a pacemaker detection, and a pacemaker detection sensitivity;
the control unit is capable of selecting one of the processing setting value patterns to be used in the electrocardiogram recording unit from among the plurality of processing setting value patterns, and is capable of independently changing the processing setting values included in the selected processing setting value pattern .
Holter electrocardiogram recording device. The display unit includes:
a pattern selection screen on which any one of the processing setting value patterns can be selected;
a plurality of detailed process setting value selection screens to which a plurality of process setting values included in the one process setting value pattern are assigned,
is displayed,
2. The Holter electrocardiogram recording device of claim 1. a representative process setting value among the process setting values displayed on the plurality of detailed process setting value selection screens is displayed in an aggregate manner on the pattern selection screen;
3. The Holter electrocardiogram recording device according to claim 2. the pattern selection screen allows the operation unit to select the processing setting value pattern, and the detailed processing setting value selection screen allows the operation unit to select the processing setting value based on the processing setting value pattern.
3. The Holter electrocardiogram recording device of claim 2. The operation unit includes a first operation unit provided on the same surface as the display unit, and a second operation unit provided on a surface different from the display unit.
2. The Holter electrocardiogram recording device of claim 1. The display unit includes:
Furthermore, a save selection screen is displayed on which the user can select whether to use the processing set value pattern including the changed processing set value at least once in the electrocardiogram recording unit or to save the pattern in the storage unit.
5. A Holter electrocardiogram recording device according to any one of claims 2 to 4 . The control unit is
When a setting change is made on the detailed processing setting value selection screen and operation information indicating a selection end is input from the operation unit, the save selection screen is displayed;
when no setting change is made on the detailed processing setting value selection screen and operation information indicating selection completion is input from the operation unit, the pattern selection screen is displayed.
7. The Holter electrocardiogram recording device of claim 6 .

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