JPH04105640A - Display for biosignal waveform - Google Patents

Abstract

PURPOSE:To achieve a higher level of diagnosis and treatment by displaying a biosignal waveform together with a key switch on a Braun tube screen. CONSTITUTION:The screen 14 of a Braun tube 12 in a small patient monitor device 10 is divided into a first area I and a second area II. A plurality of key switches k1, k2... and kn are displayed on the first area I. The second areas II takes a right lower one-fourth part of the screen 14 and a compressed bio signal waveform (e) is displayed in an electrocardiogram signal waveform. An amplitude and sweeping speed of the compressed electrocardiogram signal waveform (e) displayed on the second area II are a half of those of the electrocardiogram signal waveform E displayed on the screen 14 as a whole and the displaying time is 4sec.

Description

DETAILED DESCRIPTION OF THE INVENTION (I) Field of Industrial Application The present invention relates to a biological signal waveform display method, particularly to a biological signal waveform display method applied to a small-sized patient monitoring device.

(Il) Prior Art (1) Background of the Invention It is well known that in general, a cathode ray tube of a patient monitoring device is provided with a number of switches for selecting an image to be displayed on the screen. ing.

By operating these switches one after another, the necessary images appear one after another on the cathode ray tube screen.

For example, in an electrocardiogram patient monitoring device, when the first switch is pressed, an electrocardiogram signal waveform appears, and when the next switch is pressed, the waveform is recorded on a recorder.

This also applies to lightweight and compact patient monitoring devices used when transporting a patient in bed or when transporting the patient by car.

(2) Conventional Example However, the switches of conventional small-sized patient monitoring devices are so-called fixed switches in which the number of switches and the number of functions of each switch correspond one-to-one.

In such a fixed switch, if the functions are increased, the number of switches increases accordingly, resulting in an increase in the size of the entire device.

In order to solve this problem, a so-called touch key system has been proposed in which a large number of switch keys are displayed on the cathode ray tube screen of a small patient monitoring device and the necessary switch keys are touched with a finger.

By adopting this one-touch type, the entire device can be used while remaining compact even with increased functionality.

(III) Problems to be Solved by the Invention In the above-mentioned small touch type patient monitoring device, the cathode ray tube screen is approximately 5 inches, which is smaller than that of a normal patient monitoring device.

Therefore, the information displayed on the screen is extremely limited, and only the switch keys are completely displayed, and the patient's electrocardiogram signal waveform is only displayed for a short time, for example, one second, and the details are not visible.

Therefore, even if the patient's condition suddenly changes while the keys are being operated, this is not known, which poses a problem in that patient monitoring work is hindered.

In order to solve this problem, it may be possible to display the switch keys as a so-called window on the screen of the cathode ray tube and display the electrocardiogram signal waveform in an area other than the window.

However, with this method, there is a problem that the electrocardiogram signal waveform is hidden in the window in which the switch keys are displayed, and part of the waveform is missing.

An object of the present invention is to clearly display the biological signal waveform along with the key switch on the cathode ray tube screen of a small patient monitoring device, thereby making it useful for diagnosis and treatment by constantly and accurately monitoring the patient.

(fV) Means for Solving the Problem The above problem is solved by
The west face 14 of the screen 14 is divided into a 161st area I and a 2nd elf@U, and the first area I has key switches 1, k2, etc. for selecting information to be displayed on the screen 14.
This problem is solved by a biosignal waveform display method characterized in that a plurality of kn are displayed and a compressed biosignal waveform e is displayed in the second area H.

(V) Effect As described above, according to the present invention, the screen 14 of the cathode ray tube 12 of the patient monitoring device 10 is divided into a first area I and a second H area (■), and the first area (■) has a 1, k2 on the key switch to select the information to be displayed on 14
... A biological signal waveform display method is provided, characterized in that a plurality of kn are displayed, and a compressed biological signal waveform e is displayed in the second area II.

According to the above configuration, as shown in FIG.
In area H, a compressed biological signal waveform e, for example, an electrocardiogram signal waveform whose amplitude and sweep speed are 1/2 can be displayed.

Therefore, the key switch kLk2...kn in the first area I
At the same time, the waveform E displayed on the entire screen 14 (Fig. 2 (A)
)) is now clearly displayed as a waveform e that has been reduced to a similar shape.

Therefore, by looking at the waveform, it is now possible to detect a sudden change in the patient's condition, making it possible to constantly and accurately monitor the patient.

(VI) Examples The present invention will now be described by way of examples with reference to the accompanying drawings.

FIG. 2 is a diagram showing an embodiment of the present invention, and FIG. 3 is a flowchart for implementing the present invention.

The second embodiment corresponds to the principle diagram of the present invention shown in FIG.
Figures (B), (C), and (D).

In FIG. 1, a screen 14 of a cathode ray tube 12 included in a patient monitoring device 10, for example, a small patient monitoring device as shown in FIG. 5, is divided into a first area I and a second area (3).

In the first N area I, there are 1, k2 for a plurality of key switches.
,... kn (specifically, Fig. 2 (B) to (described later)
D). ) is displayed.

The second region (2) is, for example, a lower right quarter region of the screen 14, in which a compressed biological signal waveform e, such as an electrocardiogram signal waveform, is displayed.

The amplitude and sweep speed of the compressed electrocardiogram signal waveform e displayed in the second area (■) are, for example, 1 of the amplitude and sweep speed of the electrocardiogram signal waveform E (FIG. 2 (A)) displayed on the entire screen 14.
/2, and its display time is 4 seconds.

Hereinafter, a specific example of the biological signal waveform display method according to the present invention will be explained based on FIGS. 2 to 5.

(1) Displaying the basic screen In step S1 of FIG. 3, first the basic screen (FIG. 2(A)) is displayed.

This is done by pressing the basic screen switch 20 of FIG.

This basic screen (FIG. 2(A)) is a screen that displays an electrocardiogram signal waveform E1 based on two leads, for example, the right hand lead a V II and an electrocardiogram signal waveform E2 based on the left hand lead a V L.

In addition to the electrocardiogram signal waveforms E1 and E2, the basic screen also displays a heart rate per minute J1 and a heartbeat cycle mark J2.

(2) Displaying the alarm setting screen Next, in step S2 of FIG. A display is made.

This is done by touching the alarm switch key k displayed on the screen 14 of the cathode ray tube shown in FIG.

Figure 2 (B) is an example of the heart rate alarm setting screen, and in the 1st N area ■, the alarm setting keys are 1, k2, etc.
・In the second region II of k8, compressed electrocardiogram signal waveforms e1 and e2 are respectively displayed.

At the top of the screen, a scale of 50, 100, .

Also, above the upper limit increase key 5, the current upper limit threshold value U
110, which is the content of , is on the lower limit decrease key and the upper part of 2 is,
40, which is the current lower limit threshold value, is displayed.

If the user continues to press 5 on the upper limit increase key while looking at the scale, the upper limit threshold U moves to the right toward the screen, that is, continues to increase.

When the upper limit threshold U reaches a predetermined scale scale, if you let go of the upper limit increase key 5 that you have been holding down, the movement of the upper limit threshold U will stop, and at that point, the setting of the upper limit threshold U will be as follows. finish.

On the other hand, similarly, if the upper limit decrease key is kept pressing 4, the upper limit threshold U moves to the left toward both sides, that is, continues to decrease.

If you release your hand from 4 on the upper limit decrease key that you were holding down in 2,
The movement of the upper limit threshold U stops, and at that point, the setting of the upper limit threshold U ends.

As for the lower limit increase key 3 and the lower limit decrease key 2, their operations are exactly the same as described above.

The key with reference symbol kl displayed at the top of the screen is an upper and lower limit automatic setting key.

This upper and lower limit automatic setting key 1 allows you to automatically set an alarm for the current value P, such as +XBPM for the upper threshold U and -YBPM for the lower threshold, by pressing it. It is.

On the lower left side of the screen, 6 is displayed as an alarm on key, 7 is displayed as an alarm off key, and an alarm interrupt key k8b< is displayed.

By pressing 6 on the alarm on key, the above-mentioned alarm-related displays will be displayed on the screen, and by pressing 7 on the alarm off key, they will not be displayed.
By pressing 8 on the alarm interrupt key, the display related to the above-mentioned alarm will not be displayed for a predetermined period of time.

Alarm settings are made by such key operations, but
During this time, the electrocardiogram signal waveform ele2 based on the two leads is displayed in a compressed state in the second area II, so that the condition of the patient can be clearly understood.

(3) Display of Menu Screen After setting the alarm in (2) above, in step S4 of FIG. 3, it is determined whether to return to the basic screen again.

If you want to go back (YES), press basic screen switch 2 in Figure 5.
If 0 is pressed, the screen shown in FIG. 2(A) is displayed again.

If it does not return (NO), a menu screen is displayed in step S5 of FIG.

This is done by pressing the menu switch 22 shown in FIG. 5, and the screen is switched to the menu screen shown in FIG. 2(C).

On the menu screen (Fig. 2 (C)), in the first area I, keys 9, klo, etc. each have a unique function.
-K20 is displayed in the second region II, where compressed electrocardiogram signal waveforms e1 and e2 are respectively displayed.

(4) Key selection By touching each of the above keys 9...k20, the screen switches to a screen that performs the respective function.

Among these keys, the sound/luminance key k13 will be explained below as an example.

That is, in step S6 of FIG. 3, the above-mentioned FIG.
), the key selection is made by touching the sound/brightness key k13 among the keys displayed.

As a result, a sound/brightness setting screen as shown in FIG. 2(D) is displayed, and the sound pitch and screen brightness can be set.

As for the sounds, as shown in the figure, the heartbeat sound that is emitted every time the patient's heart beats, and the alarm sound that is emitted when the upper limit threshold U and lower limit threshold D (Figure 2 (B)) are exceeded when setting the alarm. You can also set the pitch of the switch sound that comes out each time you touch a key switch on the screen.

For the heartbeat sound, press 21 on the decrease key and 22 on the increase key.
For the alarm sound, press 23 on the decrease key and 2 on the increase key.
4, and for the switch sound, 25 is displayed on the decrease key and 26 is displayed on the increase key, respectively.

Regarding the heartbeat sound, if you keep pressing 21 on the decrease key, the black mark B moves to the left and the sound becomes lower, and when you keep pressing 22 on the increase key, the black mark B moves to the right and the sound becomes lower. becomes higher.

In this way, the pitch of the sound after being set is displayed as a number, for example "5", as shown in the figure.

This also applies to alarm sounds and switch sounds.

Brightness is the brightness of the screen, and if you keep pressing 27 on the decrease key, it will become darker, and if you keep pressing 28 on the increase key, it will become brighter.

The black mark moves to the left and right, and the brightness is displayed in numbers, similar to the above-mentioned heartbeat sound, etc.

Even during this sound/brightness setting operation, the compressed waveforms e1 and e2 of the second area H are displayed, and the patient's condition is constantly monitored.

After setting the sound and brightness in this way, it is determined in step S7 of Fig. 3 whether or not to return to the basic screen (Fig. 2 (A)). 5. Press the basic screen switch 20 shown in FIG.

Regarding the other keys shown in the menu screen (FIG. 2(C)), the operation procedures are all the same as those related to the sound/brightness key 13 described above, so the explanation thereof will be omitted, and their functions will be briefly described below.

In other words, the trend display key 9 is a key for displaying the trend of biological signals (for example, heart rate) within a certain period of time in the past, and the channel switching key klo is a reception channel when monitoring a patient's biological signal waveform wirelessly. The arrhythmia setting key kll is the key to specify the arrhythmia type and darkness value when you want to analyze the arrhythmia. The sleeve key k12 is the key to continue monitoring biological signals to make the patient sleep soundly. 14 is a key to set the current date and time, and a clock setting key is used to erase only the screen.
The key lock key k15 is a key for locking all the keys displayed so that the screen can be cleaned. The sweep speed key k16 is a key for switching the sweep speed of the displayed waveform. The recording setting key k17 is a key for locking all the keys displayed so that the screen can be cleaned. Key for setting the format of the waveform to be recorded (for example, whether to record the current waveform directly or record it with a delay including past waveforms). 1B for the calibration key displays the calibration voltage. The patient selection key k19 is used to select the patient whose heartbeat sound will be sounded in the case of a two-bed specification.The preset key 20 is used to make more detailed settings (for example, setting the receiving channel name). This is the key to not doing anything.

FIG. 4 is a block diagram for implementing the invention described above.

A biological signal, such as an electrocardiogram signal ECG, is input to the input capo-l'
10 D(,:Oiite, A/D conversion is input to the CPU board IOC.

Here, each key L explained in FIG. 2 and FIG.
By operating the OB, the third
The steps in the figure are executed.

The results are output to the CRTIOA, alarm ball 10F, and recorder IOC.

The power source can be either AC power supply or DC power supply.
1! Through the source board IOE, the CPU board FIOC,
CRTIOA, input capo-t'lOD and recorder 10G
is supplied to

FIG. 5 is a diagram showing a general example of the present invention, in which various keys are provided in the I-th area r of the screen 14 of the small-sized patient monitoring device, and in the second area I.
The waveforms of each biological signal are displayed.

Around the screen 14, there are the basic screen switches 22 mentioned above,
A menu switch 22 and the like are provided.

When the alarm ball IOF is in use, it is pulled vertically upward from the main body of the apparatus and blinks, and a magazine 16 for storing recording paper is provided at the bottom of the screen 14.

Although the present invention has been described above based on FIGS. 1 to 5, the compressed biological signal waveform e displayed in the second area H of the screen is not limited to the electrocardiogram signal waveform, and may be other than the blood pressure waveform or the like. The biological signal waveform may also be used.

[■] Effects of the Invention As described above, according to the present invention, the screen 14 of the cathode ray tube 12 of the patient monitoring device 10 is divided into a first area I and a second area (■), and the first area I includes: 1, k2 on the key switch for selecting the information to be displayed on the screen 14
A technical measure has been taken of an electrocardiogram waveform display method characterized by displaying a plurality of kn and displaying a compressed biological signal waveform e in the second M region II.

According to the above configuration, as shown in FIG.
A compressed biological signal waveform e, for example, an electrocardiogram signal waveform whose amplitude and sweep speed are 1/2 can be displayed.

Therefore, the key switch in the first area I is 1, k2...k.
Along with n, the waveform E displayed on the entire screen 14 (Fig. 2 (
A) The waveform e, which is reduced to a similar shape, is now clearly displayed.

Therefore, by looking at the waveform, it is now possible to know if a patient's condition has suddenly changed, and the technical effect of constantly and accurately monitoring the patient is useful for diagnosis and treatment.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle of the present invention, FIG. 2 is a diagram showing an embodiment of the present invention, FIG. 3 is a flow chart for implementing the present invention, FIG. 4 is a block diagram for implementing the present invention, FIG. 5 is a diagram showing an example of application of the present invention. 10... Patient monitoring device, 12... Braun tube, 14... Screen, l ・ ・ ■ ・ ・ k 1, e °.・First region, ・Second region, k2...kn... Keysui compressed biological signal waveform. Sochi Patent applicant Agent: Fukuda Denshi Co., Ltd.
Patent Attorney Akira Saito Figure 1: Principle diagram of the present invention Figure 1: Flow chart for implementing the present invention Figure 3: 0A Block diagram for implementing the present invention: Figure 4

Claims (5)

[Claims] (1) The screen 14 of the cathode ray tube 12 of the patient monitoring device 10 is divided into a first area I and a second area II.
Region I displays a plurality of key switches k1, k2...kn for selecting information to be displayed on the screen 14, and the second region II displays the compressed biological signal waveform e. A biological signal waveform display method characterized in that: (2) The biological signal waveform display method according to claim 1, wherein the second region II is a lower right quarter region of the screen 14. (3) The biological signal waveform display method according to claim 1, wherein the compressed biological signal waveform e is an electrocardiogram signal waveform. (4) The amplitude and sweep speed of the compressed electrocardiogram signal waveform e are
4. The biosignal waveform display method according to claim 3, wherein the amplitude and sweep speed of each electrocardiogram signal waveform E displayed on the entire screen are 1/2. (5) The biological signal waveform display method according to claim 3, wherein the display time of the compressed electrocardiogram waveform e is 4 seconds.