JPH04200440A - biofeedback device - 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] [Technical field of invention] The present invention relates to a biofeedback device.

[Conventional technology] Traditionally, during meditation such as zazen, brain waves exhibiting a waveform called alpha waves are generated from the cerebral neocortex during mental states variously referred to as mental unity, mental stability, selflessness, relaxation, etc. It has become known that this is accompanied by In the state where alpha waves are generated, the autonomic nervous system becomes active, for example, the normal breathing rate of 15 times per minute further decreases, the pulse rate becomes extremely slow, and the blood pressure stabilizes at a low value.
It is well known that there are clear changes in biological activities such as an increase in blood flow. This is not only effective in recovering from fatigue and relieving stress.

It is said that through repeated meditation training, one can develop creativity and acquire the ability to make appropriate judgments. Furthermore, a biofeedback device is known as a device for measuring mental stability as described above. This device directly detects alpha waves, or detects changes in biological information such as skin resistance that appear in response to alpha waves generated by the brain.

For example, a sensor that detects changes in skin resistance is fixed to a fingertip or the like with adhesive tape, and when a change in skin resistance corresponding to the generation of alpha waves is detected, a buzzer sound is generated or a light emitting element is turned on. This is to notify that alpha waves are being generated. Then, by repeatedly learning the mental state at the time of this notification and the process leading up to it, it becomes easier to carry out the next mental stabilization.

[Problems with conventional technology] In recent years, there have been many attempts to maintain health and improve mental health by actively guiding the mental state to a state that generates alpha waves, which is useful in daily life. There is. For this purpose, it is necessary to repeat the training by using the above-mentioned high-efficiency devices, etc., to monitor the progress of the mental state until it reaches a stable state, and to further try to unify the mind. In today's extremely busy society, there is a need to be able to easily carry out the above-mentioned mental unification training even during breaks or while traveling in a vehicle. However, conventional biofeedback devices have problems in that they are large and cannot be carried, are extremely expensive, and cannot be easily used in a short time on the go.

In addition, there was a problem in that the progress of training was unclear only through notifications using buzzer sounds and flashing lights, which left some dissatisfaction.

[Object of the Invention] An object of the present invention is to provide a biofeedback device that is a small device that can be carried at all times, is inexpensive, and allows the user to see the progress of training.

L Key points of the invention In order to achieve the above object, the present invention provides a function that can continuously measure blood pressure data and pulse data, and a function that compares the measured data with preset target data and displays the results. The main point is that the progress of biofeedback training can be displayed quickly and easily even with a small device by incorporating the above into a small device that can be carried at all times.

[Embodiments] Hereinafter, two embodiments of the present invention will be explained with reference to the drawings.

FIG. 1 is an external view of an electronic wristwatch according to an embodiment of the present invention.

In FIG. 1, a wristwatch case 1 is provided with an LCD (liquid crystal display) 2 and a watch glass 3 covering the LCD 2 at a slightly 12 o'clock side in the center of the front surface of the watch case 1. It is fixed at 1.

Three push-button switches S1, S2, and S3 are provided on the left side of the wristwatch case 1, and the LC
Two push button type switches S4 and S5 are also provided below D2.

A blood pressure detection device 7 is provided on the right side of the wristwatch case I, and includes a detection section 6 for detecting blood pressure from an inserted fingertip, and a pump chamber 5 for injecting pressurized air into the detection section 6.

Further, a wristwatch 7 is attached to the wristwatch case 1, so that the wristwatch case 1 can be attached to a wrist or the like and can be identified.

FIG. 2 is a block diagram showing the internal circuit of the wristwatch shown in FIG. 1 above.

In FIG. 2, ROMII is a fixed memory that contains microprograms for controlling the system and data such as numerical values for various calculations. The key manual section 12 includes the switches S1, S2, etc. explained in FIG.
, S5, and outputs operation signals of each key to the control section 13. The control unit 13 is a CPU such as a microprocessor.
The entire system is controlled based on the microprogram built into the ROMII. Further, when the input signal from the key human power section 12 is a signal instructing blood pressure measurement, the control section 13 outputs an operation signal a to start the drive section 14. Drive section 14
When the operation signal υa is inputted from the control section 13, the pump chamber 5 shown in FIG.

The detection unit 6 includes a fingertip insertion section, a pressurization body made of a synthetic gong, a coating, etc. (not shown), which is provided inside the fingertip insertion section and surrounds the inserted fingertip, and emits light toward the inside of the inserted fingertip. It consists of a light-emitting diode that irradiates, a phototransistor that detects the light that is irradiated and reflected inside the fingertip, etc., and the blood stops or passes depending on the pressure applied by the pressurizing body in the blood vessel of the inserted fingertip. The systolic blood pressure and diastolic blood pressure are detected by sensing the pulsating flow, and the detected blood pressure data is output to the control unit 13.

The control unit 13 compares the blood pressure data that has been previously set in the RAM (Random Access Memory) 15 by the manual input of the key input unit 12 with the blood pressure data input from the detection unit 6, as will be described later. , and outputs an operation signal in accordance with the comparison result to drive the sound alarm section 16 and cause the buzzer sound to sound.

Further, the control section 13 is connected to an oscillator 18 via a frequency division timing section 17. The oscillator 18 generates a clock signal with a constant period 7 and outputs it to the frequency division timing section 17 . The frequency division timing section 17 is composed of a frequency division circuit and a timing generator, and outputs a clock signal and a timing signal for controlling each section in time series to the control section 13.

Further, the control section 13 is also connected to a display section 20 via a decoder/driver section 19 and outputs various display data to the decoder/driver section 19. The decoder/driver section 19 decodes the display data input from the control section 13 to create a display drive signal, and generates a display drive signal for the display section 20.
Output to.

The display section 20 has the LCD 2 described in FIG.

FIG. 5 is a diagram showing the main internal configuration of the RAM 15.

The data stored in the function of each register, which is not shown in the figure, is listed below.

Display register 21: stores display data to be displayed on the LCD 2 of the display section 20.

Current time register 22...the frequency division timing section 17
The current time generated based on the signal t output from the controller is stored.

Register M: A flag register corresponding to the three basic display modes, which stores rOj in the basic clock mode, "1" in the blood pressure measurement mode, and "2" in the biometer mode.

Register F...In the bio-measurement display mode where M=2 (the value of register M is "2"), set [0-j in the bio-display mode and 1 in the bio-measurement mode, and set it in the measurement data recall mode. Then, memorize "2".

Register G: Stores "1" during blood pressure measurement.

Register SO: Stores the systolic blood pressure data being measured.

Register Do: Stores the diastolic blood pressure data being measured.

Register S1: Stores the set systolic blood pressure data.

Register D1: Stores the set diastolic blood pressure data.

Register P: This is an address pointer of a register Lj, which will be described later, that stores measured blood pressure data.

Register C: 10 second timer.

Register Lj (j=1 to 30)...consists of 30 registers, each register consists of register sections S and D, register section S stores measured systolic blood pressure data, and register section stores measurement data. Save the diastolic blood pressure data.

In the above configuration, first, switch 8 shown in FIG.
The switching of display modes set by steps 1 to S3 will be explained (.

As shown in FIG. 6, by operating the switch S1, the value of the register M changes to roj-rlJ-r2J - as described later.
In response to the value of the register M, the basic clock mode display, M
The display switches between the blood pressure measurement mode display shown at D20, the biomeasurement mode display shown at MD30, and the basic clock mode display again.

In the basic clock mode display, the current time is "Sunday, January 13, 1991," as shown in MDIO in FIG.
10:57:23” is displayed on the LCD 2.

In addition, when displaying the blood pressure measurement mode, MD in FIG.
As shown in 20, rBPJ indicates that blood pressure is being measured.
is displayed above I-CD 2.

When this display is displayed, by inserting the fingertip of the right hand into the blood pressure detection unit 6 shown in FIG. 1, the systolic blood pressure value +145j and the diastolic blood pressure value "80" detected from the fingertip,
It is displayed on the lower part of LCD2 and on the right side of the center.

In addition, in the bio-measurement mode shown in MD30 in FIG.
Furthermore, the display mode is switched, and register F=
When it is 0, the bio display mode is displayed as shown in MD31 in the same figure, and rBFj indicating that it is in bio display mode, the target systolic blood pressure value such as r140J, and the diastolic blood pressure value such as 75J are displayed. When the key is pressed manually using the switch S2 in this bio display mode, the register F becomes 1 and the display switches to the bio measurement mode shown in MD32 in the same figure, and a heart-shaped display shows that the bio measurement mode is in progress. In this case as well, by inserting the fingertip of your right hand into the blood pressure detection unit 6 shown in Fig. 1, you can perform biological measurement of maximum and diastolic blood pressure (measuring biological information such as maximum and diastolic blood pressure). In order to improve the biological condition from this measurement to the next measurement, measurements for the purpose of feed-hacking to notify the measurement results (hereinafter referred to as bio-measurement) were carried out, and measurements every 10 seconds as described below. If the value is, for example, the systolic blood pressure value ri4o Liao, the diastolic blood pressure value "7
5" are displayed in sequence. At this time, compared with the set blood pressure data stored in advance in the register S1 or register D1 of the RAM 15, if the value of the bio-measured blood pressure data is equal to or lower than the value of the set blood pressure data, the alarm unit 16 It is designed to drive a buzzer and generate a buzzer to notify that results are being achieved.

The biological measurement of the blood pressure is performed every 10 seconds, and the measurement every 10 seconds is performed 30 times, the biological measurement is completed, and the display returns to the biological display mode shown in MD31 in the figure.

Next, when the display is in the bio display mode, the register F-2 is set by pressing the key of the switch S3, and the display is switched to the measurement data recall mode shown by MD33 in the figure. In this mode, the measured blood pressure data stored in the registers I-j of the RAM 15 are sequentially read out by manually pressing the key of the switch S4.
As shown in 33, along with rBFJ indicating that it is a high-offit hasock display, f-1-4 indicating that it is stored in L-register L at the beginning of register Lj, and the measured value stored therein. The systolic blood pressure value "138" and the diastolic blood pressure value "80 J" are displayed on the LCD 2.

At this time, the displayed systolic blood pressure value and diastolic blood pressure value can be selected and set as set values (target values) for the next biometric measurement.

Next, the operation of the time and biometric measurement processing performed by the control unit 13 in each of the above display modes will be explained using the flowcharts of FIGS. 4 and 5.

First, we will describe the process that is performed each time a clock signal of a predetermined period is output from the frequency division timing unit 17.

In FIG. 4, in the HA I-T state of step SΔ1, if an input is made from the key human power unit 12, the process proceeds to step SA6, and on the other hand, if a clock signal is input from the frequency division timing unit 17, the process proceeds to step SA2. . Step S
In A2, time (11 counting processing is performed and the obtained current time data is stored in the current time register 2 of RAM 15.
Store in 2. In the next step SA3, A1i of the register G is '1- (hereinafter written as G=l)
Determine whether or not. If G=1, it is determined that the blood pressure is being measured, and step S A 4! After proceeding 1 m and performing the blood pressure measurement process shown in Fig. 5, the vehicle proceeds to Ste.knob SA5 and performs display processing again according to the values of registers M and F shown in Fig. 6. , step SA
Return to I.

If it is not G-1 in step SA3, it is determined that the blood pressure is not being measured, no measurement processing is performed, and display processing is immediately performed in step SA5 (line 4-).

As a result of the above operation, when there is no key power in the HALT state Rμ, the time measurement process is performed every time the time measurement timing comes and the current time is stored in the current time register 22 of the RAM 15, and the G
If G=1, the blood pressure measurement process is performed, and if G=1, the blood pressure measurement process is not performed, and the LCD of the display unit 20
2, a display corresponding to the set display mode is displayed.

Next, the process of changing the display mode by operating the switches S1 to S3 shown in FIG. 6, that is, the process of changing the values of registers M and F by operating the switches, as shown in FIG. explain.

When entering the HALT state in step SA2, if there is a key force from the key force unit 12, the control unit 13 proceeds to step SA6 and determines whether or not the key force is the key force of the switch S1. When the key of switch S1 is operated manually, it is shown in FIG.

It is determined that cyclic switching of the three display modes has been instructed, and the process proceeds to step SAT, where register M is set to "1".
Perform addition. Next, the process proceeds to step SA8, and it is determined whether M=1. If it is M-1, it is determined that the basic clock mode 1 has been switched to the blood pressure measurement lower mode, and the process proceeds to step SΔ9, where c=1 is set in order to measure blood pressure, and the step SΔ , move on to the display process in step 5.

” If M is not 1 in step SA8, then step SA5? This transition will take place.

As a result of the above operation, for each key press of switch S1, the value of register M is 11 - force l] (1-2 oko 71 j j
J[] is calculated (returns to 0-1), and based on the value of the register M, the display mode is set to the basic clock mode, blood pressure measurement mode, bio-measurement display mode, as shown in FIG.
It cycles through the basic clock mode) and switches again. Also, M
In the blood pressure measurement mode of =1, F-1-1 is applied to
is given seven throats. This G=1 is determined at the processing timing following step SA3, and blood pressure measurement processing is executed at step SA4.

In step SA6, if the key force is not the key force of the switch S1, the process proceeds to step SAIO, where it is determined whether the key force is the key force of the switch S2. If the key of the switch S2 is manually operated, the process proceeds to step 5AII, where it is determined whether or not the key was operated when M=2 and F=0. Then, M=2 and F=
If it is 0, when the current bio-measurement display mode is set and the bio-display mode shown in MD31 in FIG.
Sochi S2 was manipulated, and therefore the MD of the same figure
The mode is switched to the bio-measuring mode shown in 32. That is, in this case, proceed to step 5A12 and register F.
Set "1" to set the bio-measuring mote, clear register C to "0" and start the 10 second timer,
Further, "1" is set in the register G to set execution of blood pressure measurement, and then the process moves to the display process of step SA5.

In step SAI above, if M=2 and F=0, the manual key power of switch S2 is invalidated, and the process immediately proceeds to step SA5.

Due to the above operation, when in bio display mode,
When the switch S2 is pressed manually, the display mode changes to F-1, the display mode changes to the biomeasuring mode, the blood pressure measurement flag G=1 is set, and the register C, which is a 10-second timer, starts.

The above-mentioned G=1 is determined at the processing timing following the above-mentioned step SA3, and after step SA4, the blood pressure measurement processing described in detail in 7 is executed based on the processing timing every 10 seconds indicated by the above-mentioned timer C. Furthermore, when the bio display mode is not activated, the key power of Sui Nochi S2 is ignored.

Next, in step 5AIO above, the key is turned to switch S.
If the key in step 2 is not human power, proceed to step 5A13.
It is determined whether or not the key of switch S3 is manually operated. Then, if the switch S3 key is manually operated, step 5A
Proceeding to step 14, in this case as well, it is determined whether or not the key was pressed when M=2 and F=O. and,
If M = 2 and F = O, the key of Sui Nochi S3 was activated in the bio display mode shown in MD31 of the 6th cabinet, and the switch to the measured data recall mode shown in MD33 of the same figure was performed. Replacement is indicated. Therefore,
In this case, proceed to step 5A15, initialize the register P which is the address pointer, and set it so that the measured data can be read from the first register L1 of the register L.
Next, proceed to step 5A16 and set "2" to register F.
After setting the measurement data recall mode,
The process moves to the display process of step SA5.

With the above operation, when in bio display mode, switch 7.
When there is a key input in S3, the address pointer P is initialized, and register Lj is updated by updating register P, which will be described later.
It is set so that addresses can be specified sequentially from the first register L1. Furthermore, "2" is placed in register F, and the display switches to the measurement data recall mode.

In step 5A14, if M=2 and F=0, the process proceeds to step 5A17, where it is determined whether M=2 and F=2. Then, M=2 and F=2
If so, it is determined that the key of the switch S3 has been pressed manually when in the biometric display mode and the measured data recall mode, and therefore the switch to the biometric display mode is performed. That is, in this case, the process proceeds to step 5A18, where the register F is set to "0" to set the bio display mode 2, and the process proceeds to the display process of step SA5.

In step 5A17, if M=2 and F=2, then in step 5A14, M=2 and F=O, and furthermore, this is the key human effort made when M=2 and F=2. , 2, the manual keystroke by switch S3 is invalid, and the process immediately proceeds to step SA5.

As a result of the above operation, when the mode is not in the display mode shown by MD31 in FIG. 6 or in the measurement data recall mode shown by MD33, the manual input of the switch S3 is ignored.

Next, a description will be given of the setting process of the blood pressure data target value in the display mode of MD31 and MD33 shown in FIG. 6, which is manually set by the keys of the switches S1 and S3.

In step 5A19 of the flowchart of FIG.
When the key force of switch S4 is detected, the steno "5A"
Enter 20, te1. In this case too, the key input is -1-3.
When F=2 and the indicator of F=O, it is determined whether or not Q has been performed. Then, if you throw it with M=2 and F=0, step sA 22 Otsu two moves multi-row 5 and 1. Furthermore,
The above key power is M-26": and "-2 indicator-L
If so, it is determined whether it was performed or not. (5te, M・-
If 2 is -2, the key of switch S4 has been pressed in the measurement data IJ goal mode shown in MD and 33 of FIG. In this case, proceed to S→χ・Bu5A23 and address points P/'
7) Register I updating the value and storing the next bio-measured blood pressure value.

After specifying 71-response of J and reading out the measured blood pressure value 7, the process moves to the display process of step SA5.

As a result of the above operation, in the measurement data recall mode shown in MD 33 of the 6th Cabinet, for each key manual force of switch S4, each 30
Systolic blood pressure and diastolic blood pressure data are sequentially read out from the beginning and displayed.

Next, in step S A 20 above, 1, M=2, and F
If = 0, it is determined that the key input of the switch s4 instructs selection of the systolic blood pressure value or the diastolic blood H-value that is currently not displayed, and the process proceeds to step 5A21? ': Go forward and select the highest mJ pressure or lowest mJ value currently displayed.

The steno 7' S A 20, M-2 and F'
= If it is not 0, proceed to i~・↓, already Q mentioned above, or go to step 7, step 5A22-r, M=
2 and p=2, the key input of switch s4 is invalid, and the process immediately moves to steps S7 to S5.

As a result of the above operation, the systolic blood pressure or diastolic blood pressure value to be displayed can be selected as the target value by manually pressing the key of switch S4 in the bio display mode. !- and is not in the measurement data recall mode, the human power of the switch S4 is ignored.

Next, in step 5A19 above, when the key power is not the key power of switch S4:! , it is determined that the key of switch S5 is manual power, and 2, proceed to STEP S A 24,
The key human power is M=2 at first glance.

It was done at a certain time, but the blue color is IIJ.

If M=2 and F=0, the bio display is currently -1
Therefore, it is determined that it is possible to set or modify the [-7 bar-j-] by the kill input of the switch s5. However, in this case, proceed to step 5A25 to set or modify the target data selected in step 5A21. If the target data is the systolic blood pressure value, the RAM 15 and 2. If the diastolic blood pressure value is in Star SI, R
Store in register D1 of AM 15.

By the above operation, in the bio display mode, setting of the target value when the measurement value to be selected 1 is not yet stored in step S A 21 of F, or correction/setting of the selected target value, etc. is performed using switch s5. The key can be done by manual instruction.

In the above step 5A24, if it is M-2 and not F-.0, it is determined that a mote other than the bio display mode is set, and the process proceeds to step SA26, where the switch in other mote display is 2,000 s5Q. This key performs manual processing, such as setting the time, alarms, etc.

Next, when the value of the register G is set to 1-, the control ibl i 3 to 4' is executed. The details of the processing are shown in Section 5 [71]U.
! =Explain using a chart. The second blood pressure measurement process is performed using the blood pressure detection 2 provided in the wristwatch case 1 shown in FIG.
The systolic and diastolic blood pressures are detected from the fingertip of the right hand inserted into the position 7.

In FIG. 5, first, in step SBI, it is determined whether M-1 is set, that is, whether the blood pressure measurement mode shown in MD20 of FIG. 6 is set, and M=1. If so, proceed to step SB2, output the operation signal a, start the drive (b) 14, and detect the systolic and diastolic blood pressures by the detection unit 6 while driving the pump chamber 5.・The measured systolic and diastolic blood pressure data are stored in registers SO and DO? of RAM 15, respectively. Then, the process proceeds to step SB3, where G=0 is reset to indicate the end of the blood pressure measurement process, and the process returns to the main flow in FIG.
Proceeding to display processing in step SA5, the measured systolic and diastolic blood pressure data is displayed.

As a result of the above operation, in the mote of MD20 in FIG. 6, the systolic blood pressure and diastolic blood pressure data detected by measurement are
The blood pressure data is stored in registers SO and DO of AM15, and the stored blood pressure data is displayed on LCD2.

Bio-Oki and Tachiba In the above step SBI, if M = 1, step SB
4, M=2 and F-1, that is, MD3 in FIG.
It is determined whether the mode is the bio-measurement mode shown in 2.

Then, if M=2 and F-1, step SB5
Proceeds to add "1" to register C (timer C), and in step SB6, determines whether the timer value is 10 seconds or not. If it is not 10 seconds, the process ends, and this step SBI, SB4 , SB5 and SB6 are repeated. Then, when the timer value reaches 10 seconds, the process advances to step SB7, where the systolic blood pressure and diastolic blood pressure data are measured in the same manner as in the blood pressure measurement mode described above, and the systolic blood pressure and diastolic blood pressure data detected by the measurement are respectively The data is stored in registers SO and DO of the RAM 15.

With the above operation, in the bio-measurement mode, the blood pressure detection device 7 measures blood pressure data every 10 seconds.
Systolic blood pressure data and diastolic blood pressure data detected through the measurement are stored in register SO and register DO of RAM 15, respectively.

Following the process of step SB7 above, next step SB
Proceeding to step 8, it is determined whether the measured systolic blood pressure data stored in the register SO is smaller (lower blood pressure value) or equal to the set systolic blood pressure data set in the register S1. In this determination, if the measured systolic blood pressure data stored in the register SO is smaller than or equal to the set systolic blood pressure data set in the register S1, the process proceeds to step 5BIO, and the measured value of the blood pressure data corresponds. In order to notify of a failure that is lower than or equal to the set value, an operation signal is output, and a warning sound (bN6 is activated to generate a buzzer sound).

In step SB8, when the measured systolic blood pressure data is larger than the set systolic blood pressure data (the blood pressure value is high), the process proceeds to step SB9, and the measured systolic blood pressure data stored in the register DO is set in the register D1. Determine whether it is smaller than or equal to the set diastolic blood pressure data.

If the measured diastolic blood pressure data is smaller than or equal to the set diastolic blood pressure data, the process also proceeds to step 5BIO to perform the alarm process. In step SB9, if the measured diastolic blood pressure data is greater than the set diastolic blood pressure data, the process immediately proceeds to step 5BII, which will be described later.

Through the above operation, if the measured value of either the systolic blood pressure data or the diastolic blood pressure data is smaller than or equal to the corresponding set value, a buzzer sound is generated to notify that the measurement result has been improved.

Following the above, in step 5B11, the value of the address pointer P is updated to set the address of the register Li-j+1) which sequentially stores the measured systolic and diastolic blood pressure data respectively stored in the registers 5O1DO and 5B11. , the measured systolic and diastolic blood pressure data stored in the registers 5O1DO, respectively, are transferred and stored in the register sections S and D of the register Li designated by the address. Next, the process proceeds to step 5B12, where it is determined whether the blood pressure measurement every 10 seconds is the final one in the current measurement process. This determination process is performed, for example, by determining whether the updated value of the address pointer P exceeds the address of the final register Lzo provided in the RAM. If it is not yet final, the process immediately returns to the main flow in FIG. 13 and performs the display process in step SC5, and again in the process in FIG.
Repeat 5B12.

If the process is final in step knob 5B12, proceed to step 5B13, set G=0 to end the blood pressure measurement process, and set F=O to switch from bio-measurement mode to bio-measurement mode. After switching to display mode, return to the main flow.

By the above operation, the register Lj is sequentially specified every time the bio-measurement is performed every 10 seconds until the end of the measurement, and the measurement data is sequentially stored in the specified register Lj.

In this way, 1. ” - In the embodiment described above, bio-measurement processing is performed, but the measurement method that produces a feeling of pressure on the fingertips every 10 seconds during mental concentration training as described above impairs mental concentration for training. It cannot be said that there is no fear. In such a case, bio-measurement can be made by simply pressing the fingertip lightly against a predetermined position of the device.Another embodiment of such a biofeedback device is shown in Fig. 7. This will be explained below using FIG. It should be noted that the same components as in the first embodiment are given the same numbers 7 and detailed explanations will be omitted.

FIG. 7 is an external view of an electronic wristwatch according to a second embodiment of the present invention.

In Figure 7, 1. (wristwatch) The Y-s main body 1' is made of electrically non-conductive synthetic resin or the like. On the front part, an LCD (liquid crystal display) 2 and a watch glass 3 covering the LCD 2 are provided slightly toward the 12 o'clock direction from the center. ’ is fixed. In addition, on the left side of the front side of the wristwatch case body 1', there is a LED (light emitting dimate) 10-1, a photo-lamp transistor 10-2, and a light emitted from the I-E D 10-1. A partition that separates both transistors so that they do not enter the transistor 10-2], O
-3 or the head only on the concave surface 10-4 (currently on the part 3)
') is buried, and an electrocardiogram (electrocardiogram R wave) detection electrode 9-1 is provided on the right side thereof. Furthermore, push-button type switches S1, S2, S3, S4 and S5 having the same functions as those in the first embodiment are provided on the side surface of the watch case body 1'. Operations such as inputting data are performed.A band 8 is attached to the watch case body 1', so that the watch case body 1' can be attached and fixed to the wrist, etc. There is.

FIG. 8 shows the detailed structure of the display electrodes of the F memory CD 2. The LCD2 is roughly divided into three display areas: -1, middle and lower.
A 1-nodomatrix display section 2-1 is provided which can display 1-nodomatrix display section 2-1, and on the left side of the dot matrix display section 2-1, numbers indicating the systolic blood pressure value divided into 6 stages are arranged in 1-node matrix display section 2-1 from top to bottom.
60.150, . . . 110 are printed, and on the right side, numbers indicating the diastolic blood pressure value divided into six levels are printed from top to bottom as 100.90, . . . 50. LCD
In the middle of 2, there is a mote display section 2-2 that notifies the display mode in progress, and a small segment display section 2 that displays pulse rate, etc.
-3 and heart display body 2 that flashes during blood pressure measurement
4 is provided. A large segment display 2-5 is provided at the bottom of the LCD 2 for displaying the current time when in clock mode and the maximum (or minimum) blood pressure when in sphygmomanometer mode.

This large segment display includes a 6-digit segment display, an "rl" display between the second and third segment display from the right, and a segment display located at the fourth and fifth digits from the right. It consists of a colon symbol in between, and A, P symbols, etc.

Next, FIGS. 9 and 10 are cross-sectional views parallel to the 12 o'clock and 6 o'clock directions, showing the internal structure of the watch body 1. 9th M is a cross-sectional view passing through the electrocardiogram detection electrode 91;
Figure C is a cross section passing through the partition 10-3 as seen from the right side in Figure 1. In Figure 9, 1. A conductive electrocardiogram detection electrode, which constitutes the electrode opposite to the electrocardiogram detection electrode 9-1, is covered with the watch case body 1' by the back cover 9-2 and [), and there is an electronic circuit (not shown) inside. A circuit board 1-
2 is placed in the middle layer. On the circuit board 1-2,
Above 1. , CD 2 are connected via interconnectors 1-3. Further, as shown in FIG. 10, a phototransistor 10-2, an electrocardiogram detection electrode 9-1, and an M lid 9-
2 are electrically connected via conductive members 9-3, 9-3, etc., and the LEDIs (1
1 is similarly electrically connected with a conductive member.

FIG. 11 is a block diagram showing the internal circuit of the wristwatch shown in FIG. 7.

In FIG. 11, ROMII is a fixed memory containing microprograms for controlling the system and data such as numerical values for various calculations. The key human power section 12 includes switches S1, S2, etc. explained in FIG.
・, s5 is provided, and the operation signal of each key is transmitted to the control unit 13.
’.

The control unit 13' is composed of a cPU such as a microprocessor, and controls the entire system based on a microprogram built in the ROMII. Further, when the input signal from the key human power section 12 is a signal instructing measurement of blood pressure, the control section 13' outputs an operation signal C.
is output to activate the electrocardiogram detection section 9, which will be described later, and another operation signal d is outputted to activate the pulse detection section 1o, which will be described later. Further, time measurement processing is performed based on a time measurement timing signal inputted from a frequency division timing section 17, which will be described later.

The electrocardiogram detection section 9 includes the electrocardiogram detection electrode 9 explained in FIG.
-1, and 9-2 (back M9-2), for example, the fingertips of the right hand applied to the electrocardiogram detection electrode 9-1 and the left hand in contact with the electrocardiogram detection electrode 9-2. An electrocardiogram (electrocardiogram R wave) is detected from the neck, and the detected electrocardiogram signal is output to the control section 13'.

Further, the pulse detection unit 10 uses the LEDIO described in the seventh method.
-1, phototransistor 10-2, and partition 10-3
It senses the pulsating flow of blood at the fingertips of the right hand applied to the concave surface 10-4 in which they are buried, detects the pulse, and outputs the pulse signal to the control section 13'. Sensing and detecting this pulsating flow utilizes the property of hemoglobin in blood that absorbs light of a specific wavelength.
- 1 transmits through the skin surface of the fingertip and is reflected until it is input to the phototransistor 10-2, due to the absorption effect of hemoglobin in the bloodstream, the bloodstream flowing through the fingertip is The pulse is detected by using the fact that the light decreases in inverse proportion to the amount of light. This is because when pulsating flow passes through the fingertip, the amount of blood flow is large, and depending on the amount of blood flow, LE
Since much of the light emitted from DIO-1 is absorbed, the amount of reflected light decreases, and the amount of light input to phototransistor 10-2 depicts a wave pattern that decreases and increases in response to the pulse. This decrease or increase in input reflected light is converted into a voltage signal by the phototransistor 10-2, and the converted voltage signal is outputted to the control section 13' as the pulse signal. The above-mentioned electrocardiographic waves are electric signals that flow instantaneously within the body, and reach the body surface at the same time as the heart pulsation that generates the R waves and are detected by the electrocardiographic wave detection section 9. The pulse reaches the body surface, that is, the fingertip, later than the time of occurrence of the sent pulsation due to resistance due to blood vessel characteristics and other reasons, and is detected by the pulse detection unit 10.

The control unit 13' detects the time difference (pulse delay time) between the electrocardiogram signal inputted from the electrocardiogram detection unit 9 and the pulse signal inputted from the pulse detection unit 10, and detects the detected time difference. Blood pressure data is calculated based on the delay time data and preset reference data, and the calculated blood pressure data is output to the decoder/driver section 19.

The decoder/driver section 19 decodes the data inputted from the control section 13' or data to be displayed such as time data, creates a display drive signal, and outputs it to the display section 20. The display section 2o includes the LCD 2 described in FIG. 8, and performs a predetermined display based on the display drive signal inputted from the decoder/driver section 19.

The oscillator 18 generates a clock signal with a constant period and outputs it to the frequency division timing section 17. The frequency division timing section 17 is
It consists of a frequency dividing circuit and a timing generator, and outputs a clock signal and a timing signal for controlling each section in time series to the control section 13'. RAM15' is
It is a random access memory, and as shown in FIG. 12, which will be described later, is composed of registers that store predetermined data. The sound alarm section 16 generates a buzzer sound to notify confirmation of switch operation, etc.

FIG. 12 is a diagram showing the main internal configuration of the RAM 15'. The data stored in each register shown in the figure is listed below.

Display register 21: stores display data to be displayed on the LCD 2 of the display section 20.

Current time register 22...the frequency division timing section 17
Stores the current time counted based on the clock signal output from.

Register M: "0", "1", "2" corresponding to the three basic display modes shown in FIG. This is a register that stores the value of .

In the blood pressure measurement mode of register F...M-1 (the value of register M is "1"), set "0" in the normal measurement mode shown in FIG. 16, which will be described later, and "1" in the resting measurement mode. In the measurement mode immediately after exercise, "2" is stored, in the M=20 biorecall mode, "OJ' is stored in the bio selection mode (not shown in the figure), 1-1j is stored in the bio setting mode, and 1-1j is stored in the bio measurement display mode (not shown in the figure). is a register that stores 1-2J.

Register G: A register for storing ζ 1''1-11 during bio-measurement.

L register J: A register that stores a value for selecting a set digit.

Register TTR: Stores time difference data during rest.

Register PR: Stores resting pulse data.

1/JISTA SR: Stores the resting systolic blood pressure data.

Register DR: Stores resting diastolic blood pressure data.

Register TTE: Stores time difference data immediately after exercise.

Register PE: Stores pulse data immediately after exercise.

Register SE: Stores the maximum surface pressure data immediately after exercise.

Register D) E: Stores the diastolic blood pressure data immediately after exercise.

Register MTT: Stores time difference data during measurement.

Register MP: Stores pulse data being measured.

Register MS: Stores the systolic blood pressure data being measured.

Register MD: Stores the diastolic blood pressure data being measured.

Register TS: Stores set systolic blood pressure data.

Register TD: Stores set diastolic blood pressure data.

Register TP: Stores set pulse data.

Register P: This is an address pointer that specifies a register Kj, which will be described later.

Register C: 10 second timer.

Register Q: Stores a value for specifying the target of biomeasurement (one of systolic blood pressure, diastolic blood pressure, or pulse rate).

Register Kj (j=o, 1....n) ・
・It consists of a large number of registers in the shif sisters KO to Kn, and each register consists of register sections KS, KD, and KP.The register section KS stores the measured systolic blood pressure data, and the register section KD stores the measured systolic blood pressure data. The register section KP stores the diastolic blood pressure data and the measured pulse data.

Register LO: Stores two constants indicating the relationship between systolic blood pressure and pulse wave conduction velocity, which will be described later.

Register 1, 1: Stores two constants indicating the relationship between diastolic blood pressure, pulse wave conduction velocity, and pulse rate, which will be described later.

In the above configuration, first, the switch 3 shown in FIG.
The switching of display modes set in steps 1 to S4 will be explained below.

As shown in FIG. 16, by operating the switch S1, the value of the register M is changed to rOJ - rlJ - r2J as described later.
-rOJ..., and corresponding to the value of the register M, the clock mode display shown in MDIO in the figure, M
The blood pressure measurement mode display shown at D20, the biofeedback mode display shown at MD30, and the clock mode display are switched again.

In the above clock mode display, for example, the MD in the same figure
As shown in IO, the current time is “Sunday, January 6, 1991, 10
"Hour 57 minutes 23 seconds" is displayed on the LCD 2.

Further, when the register M=1 and the blood pressure measurement mode shown in MD20 in FIG. 16 is set, the other switch 8
The value of register F is changed by manual keystrokes in steps 2 to S4, and the display mode is further switched. That is,
The blood pressure measurement mode indicated by M=1 above is set, and when register F=0, it is the normal measurement mode. In this normal measurement mode, as shown in MD21 in FIG. 16, <r'OK! J
The notification display is on the dot matrix display section 2-1 of the LCD 2.
In addition, in the mode display section 2-2, an underbar indicator is displayed in the rBPJ display area to indicate that the normal measurement mode is in effect, and furthermore, rPJ indicating the pulse rate is displayed.
is displayed, and the small segment display 2-3 flashes "-1" and the note display 2-4 flashes at the display position where the pulse is to be measured and displayed. At the time of this display, the middle finger of the right hand is attached to the electrocardiogram detection electrode 9-1 shown in FIG. By pressing the fingertip against the fingertip, the blood pressure is calculated from the electrocardiogram and pulse detected from the fingertip by calculations described later. As a result, for example, as shown in MD22 in FIG.
Pulse rate per minute) 63, systolic blood pressure 122, and diastolic blood pressure 70J are displayed, and after a certain period of time, the display returns to MD21.

Register M-1 indicated by MD21 in the same figure, and register F
When the key of switch S2 is pressed while the display mode set by =O is being displayed, register F
The value changes to "2", and the display changes to the resting state measurement mode shown in MD23 in the figure. In this resting measurement mode, the rOK! of MD21 mentioned above! The display of J changes to the display of, for example, rRE S TJ, which indicates a resting state. In this resting measurement mode, various data such as maximum and diastolic blood pressure during resting are input or measured, and this will be described later.

Additionally, if the key of switch S3 is pressed while the display shown in MD21 in the same figure is being performed, the value of register F switches to "3", and the immediately-after-exercise measurement mode display shown in MD24 in the same figure is displayed. Switch to . In this measurement mode immediately after exercise, the rO shown in MD21 of the bio-measurement mode is
K! For example, the display of J indicates immediately after exercise.
The display changes to RJ (abbreviation for EXERCrSE). In this case as well, it is possible to input and measure various data immediately after exercise, and the details will be described later.

Next, when the biofeedback mode shown in MD30 of the same figure is displayed corresponding to M=2, each time the key is pressed manually by the switch S2, the register F
The value of is switched to rOJ - rlJ - "0", and when the register F=1, the bio setting mode shown in MD32 in the figure is displayed. In addition, in the case of manual key operation using switch S3, the value of register F is rOJ −r
2j-"0", and when the register F=2, the bio display mode shown by MD33 in the figure is displayed.

Next, in each of the display modes described above, the display of time, blood pressure data, and pulse rate data performed under the control of the control unit 13', and the operations of each measurement process and input data storage process for the display are shown in FIGS. This will be explained using the flowchart shown in FIG.

FIG. 13 is a flowchart showing the flow of the entire program.

First, we will describe the process that is performed each time a clock signal of a predetermined period is output from the frequency division timing unit 17.

In FIG. 13, in the HALT state of step SCI, if an input is made from the key manual section 12, the process proceeds to step SC6, while if a clock signal is input from the frequency division timing section 17, the process proceeds to step 5C24. In step SC2, a time counting process is performed and the obtained current time data is stored in the current time register 22 of the RAM 15'. Then, in the next step SC3, it is determined whether the value of register G is "1" (hereinafter expressed as G=1). Then, if G=1, blood pressure measurement (
(including pulse measurement), proceeds to step SC4, executes the measurement process described later, and then proceeds to step SC4.
5, display processing is performed according to the values of registers M and F shown in FIG. 16, and the process returns to step SCI.

In step SC3, if G=1, then G=0, and in this case, since blood pressure is not being measured, no measurement processing is performed, and the process immediately proceeds to display processing in step SC5.

As a result of the above operation, when the timing is reached, time measurement is performed and the updated current time is stored in the current time register 22 of the RAM 15'.Furthermore, when G=1, the blood pressure data, which will be explained in detail in FIG. 14 below, is stored. Measurement processing is executed.

When G=0, measurement processing is not executed.

Next, the display mode switching process by operating the switches S1 to S4 shown in FIG. 16, that is, the register M by operating the switch,
The process of changing the value of F will be explained below.

In the HALT state of step SCI, the key human power section 1
If there is a key force from switch S1, the control unit 13' proceeds to step SC6 and determines whether the key force is the key force for switch S1. When the key of the switch S1 is operated manually, as shown in FIG. 16, when the time is 1,000 hours, the display mode is instructed to be changed in a cycle of the blood pressure measurement mode, the biofeedback mode, and the clock mode again. There is. Therefore, in this case, proceed to step SC7, add "1" to the value of register M and switch to the next mote, then proceed to step SC8, where the value of register M is set to "1" (hereinafter, (described as M-1). If M == 1, it means that the clock mode has been switched to the blood pressure measurement mode, and in this case, the process advances to step SC9, where F=0 is set and the display mode is switched to the blood pressure measurement mode. MD of 16 figures
After setting the normal measurement mode indicated by 21 and setting G=1 to further measure blood pressure data, step S
Proceed to display processing in C5.

By the above operation, when the watch mode is switched to the blood pressure measurement mode, M=1 and F=O, and MD in FIG.
The normal measurement mode will be displayed as shown in 21. Also, G=
1, so the measurement process described later in step S04 is executed.

If M=1 in step SC8 above, step 5
Proceed to CIO and determine whether M=2. If M=2, it means that the blood pressure measurement mode has been switched to the biofeedback mode. In this case, proceed to step 5CII, set F=O, and switch to the 16th After setting the bio selection mode shown in MD31 in the figure, the step S0
Proceed to step 5 display processing.

When the blood pressure measurement mode is switched to the biofeed mode by the above operation, M=2 and F=0, and the bio selection mode shown at MD31 in FIG. 16 is displayed.

Also, in step 5CIO above, if M=2, M=
0, that is, the biofeedback mode has been switched to the clock mode.

However, in this case, the process immediately proceeds to the display process of step SC5.

When the biofeed hack mode is switched to the clock mode by the above operation, the clock mode shown in MDIO in FIG. 16 specified by M=O is displayed.

Next, in the above step SC6, the key human power is switched to switch S1.
If the key is not manually operated, the process proceeds to step 5012, and it is determined whether the key of switch S2 is manually operated. and,
If the switch S2 key is manually operated, step 5C1
Proceeding to step 3, it is determined whether the key input was performed in the display mode of M=1. And M=1
If so, the process proceeds to step 5C14, where it is further determined whether F=O or not. If F=0, the normal measurement mode shown in MD21 in FIG. 16 is selected among the blood pressure measurement modes, i.e. It is determined that the above key has been manually instructed to switch from the normal measurement mode to the resting measurement mode, and the process proceeds to step 5C15, where F=1 is set to set the resting measurement mode, and blood pressure data is measured. After setting G=1 to do so, the process proceeds to the display process of step SC5.

Furthermore, if F=O is not determined in step 5C14, the process proceeds to step 5CI6 to determine whether F=1 or not.
If = 1, M = 1 and the measurement mode is at rest as shown in MD23 in Fig. 16, which corresponds to F-1, and the switch S
Determining that the key input in step 2 is an instruction to switch from the resting measurement mode to the normal measurement mode, step 5 is performed.
Proceeding to C16, F=O is set to switch to the normal measurement mode, G=O is set to cancel the measurement execution, and then the process proceeds to the display process of step SC5. Step 5C above
If F is not 1 in step SC16, it is determined that the manual keystroke of switch S2 is invalid, and the process immediately proceeds to step SC5.

As a result of the above operation, when the key of switch S2 is pressed manually in the blood pressure measurement mode, the normal measurement mode shown in MD21 of FIG. 16 and the resting measurement mode shown in MD23 of the same figure are alternately switched. . Since G=1 in the resting measurement mode, blood pressure data measurement processing, which will be described later, is performed in step SC4. Further, in the blood pressure measurement mode, when neither the normal measurement mode nor the resting state measurement mode is selected, the key input of the switch s2 is ignored.

Next, in step 5C13, if M is not 1, the process proceeds to step 5C18, and the key force of switch s2 is M.
When =2, it is determined whether or not it was performed. And M
If =2, proceed to step 5C19, in this case as well, it is further determined whether F=0 or not, and if F=O, MD3 in FIG. 16 of the biofeedback mode is selected.
1, and it is determined that switching from the bio selection mode to the bio setting mode shown in MD32 has been instructed, and the process proceeds to step 5C20, where F=
1 to set the bio setting mode, and proceed to the display process of step SC5.

If F=O in step 5C19 above, step 5
Proceeding to C21, it is determined whether F=1. and,
If F=1, M=2 and MD3 corresponding to F=1
2, and it is determined that switching from the bio setting mode to the bio selection mode has been instructed. However, in this case, proceed to step 5C21 and F=O
After switching to the bio selection mode, the process proceeds to the display process of step SC5. Step 5C21 above
If F is not 1, it is determined that the manual input of the switch S2 is invalid, and the process immediately proceeds to step S05.

As a result of the above operation, when the key of switch S2 is pressed manually in the biofeedback mode, the bio selection mode shown in MD31 in FIG. 16 and the bio setting mode shown in MD32 in the same figure are alternately switched. Also, when it is not in bio selection mode or bio setting mode,
Keystrokes on switch S2 are ignored.

Further, in step 5C18, if M=2, the process immediately proceeds to step SC5.

Due to the above operation, even when neither the blood pressure measurement mode nor the biofeedback mode is selected, the manual input of the switch S2 is ignored. - In step 5C12, if the key force is not the key force of the switch $2, the process proceeds to step SC23, where it is determined whether or not the key force is the key force of the switch S3. If the key of the switch S3 has been manually operated, the process proceeds to step 5C24, where it is determined whether the key has been manually operated in the display mode of M=1. If M=1, the blood pressure measurement mode is activated, and the manual key of the switch S3 instructs to alternate between the normal measurement mode (not shown in MD21 of FIG. 16) and the immediately-after-exercise measurement mode shown in MD24. It is determined that this is the case, and the process proceeds to step 5C25. In this STEP 5C25, if F=0, set F=2, switch from normal measurement mode to immediately after exercise measurement mode and set G=1, and if F=2, set F=O. Turn it around and switch from the measurement mode immediately after exercise to the normal measurement mode, and set G=O.
Set to .

As a result of the above operation, when the switch S3 is pressed manually in the oil pressure measurement mode, the normal measurement mode shown as MD21 in FIG. 16 and the immediately-after-exercise measurement mode shown as MD24 in FIG. 16 are alternately switched.

Then, in the measurement mode immediately after exercise, G = 1 (7)),
Thereafter, blood pressure data measurement processing in step SC4 is executed.

If M=1 is not determined in step 5C24, the process proceeds to step 5C26, where it is determined whether or not the manual key press of the switch S3 was performed in the display mode in which M=1 and F=0.

If M=1 and F=0, the bio selection mode shown in MD31 in FIG. is determined to have been instructed. However, in this case, proceed to step SC27 and
After setting G=2 to set the bio-measurement display mode and further setting G=1 to execute bio-measurement of blood pressure data, the process moves to step SC5. Also,
In step 5C26, if M=2 and F=0, it is determined that the manual input of the switch S3 is invalid, and the process immediately proceeds to step SC5.

As a result of the above operation, when the switch S3 is pressed manually in the biofeedback mode, the MD30 shown in FIG.
The bio-measurement display mode shown in 3 is alternately switched. Further, when the mode is not in the bio selection mode, the key input of the switch S3 is ignored.

Further, even when the blood pressure measurement mode is not in the biofeedback mode 1, the key input of the switch S3 is ignored.

4 Blood and Pressure Data Monitor - Human Data In this example, the systolic blood pressure value and the diastolic blood pressure value are bio-measured (measured), but these blood pressure values are obtained by actually measuring the pressure in blood vessels. It is not obtained, but it is obtained from the following algorithm. That is, the 17th
Figure (a) is a diagonal diagram showing the characteristics of the systolic blood pressure value expressed by taking the blood pressure value (blood pressure data) in the vertical direction and the pulse wave conduction velocity (time difference data) in the horizontal direction. Diagonal line A is immediately after exercise
Point 17-1 indicated by the measured systolic blood pressure value SE and the pulse wave conduction velocity TTE at the time of the systolic blood pressure measurement, and the systolic blood pressure value SR measured at rest and the pulse wave conduction velocity at the time of the systolic blood pressure measurement. It is obtained by connecting TTR and point 17-2 indicated by . The same figure measures the systolic blood pressure and pulse wave conduction velocity of the same person in other states (other than at rest or immediately after exercise), and then plots the points indicated by the measured systolic blood pressure and pulse wave conduction velocity. (a)''-, it is known that all of those points converge near this oblique IA. Therefore, if you first measure the systolic blood pressure and pulse wave conduction velocity at rest and immediately after exercise and record the constant indicated by the diagonal line A, then all you need to do is measure the conduction velocity MTT. The systolic blood pressure value is obtained by calculation. For example, if the measured conduction velocity is MTT, the diagonal line A
The corresponding blood pressure value MS can be determined from the upper point 17-3, and this value is the systolic blood pressure value at that time.

The above oblique IA can be expressed by the linear equation y = ax + b (a, b are constants), and the above constants a and b are the systolic blood pressure values during exercise and at rest measured by other accurate blood pressure monitors. After inputting , and measuring the pulse wave conduction velocity (time difference data) obtained from the pulse and electrocardiogram at the time of measuring the systolic blood pressure, the control unit 13 calculates, for example, by operating the swift S5 key, which will be described later. Register L of RAM15'
The information is stored in two areas within O. After making this input and measurement, all you need to do is measure the pulse wave conduction velocity MTT, and then calculate y, that is, the systolic blood pressure value MS, by substituting this MTT into X in the above equation. You can ask for it.

Next, the diagonal line B shown in FIG. 17(b) is the lowest value expressed by taking the blood pressure value in the vertical direction and the value shown by pulse wave conduction velocity x pulse rate data (pulse rate per minute) in the horizontal direction. FIG. 2 is a diagonal diagram showing characteristics of blood pressure values. This oblique! JIAB is determined by the point 17-4 indicated by the diastolic blood pressure value DR measured at rest, the value TTRXPR that is the sum of the pulse wave conduction velocity and pulse data at the time of the diastolic blood pressure measurement, and the diastolic blood pressure measured immediately after exercise. value D
It is obtained by connecting the point 17-5 indicated by E and the value TTEXPE, which is the sum of the pulse wave conduction velocity and pulse data at the time of measuring the diastolic blood pressure. As in the case of systolic blood pressure, measure the diastolic blood pressure of the same person in another state, and write the points indicated by the measured diastolic blood pressure and the pulse rate and pulse wave conduction velocity at that time in the upper part of the same figure (b). It is known that all of these points converge near this diagonal line B. Therefore, first, use another accurate blood pressure monitor to measure and input the diastolic blood pressure at rest and immediately after exercise, and also measure the pulse rate and pulse wave conduction velocity at the time of measuring the diastolic blood pressure. If you record the linear equation showing the diagonal line B that indicates the above characteristics, then all you have to do is measure the pulse and electrocardiogram, and you can integrate the pulse wave conduction velocity MTT and pulse MP obtained from the measurement of the pulse and electrocardiogram. Value MTTXMP'! From this, point 1 on the corresponding diagonal mB
7 to 6 can be found, and the point 17-6 on the diagonal iB
The corresponding diastolic blood pressure value MD can be determined from .

By the way, the diagonal line B above also represents the linear equation y=mx+n (m
, n are constants), and these constants m and n are determined based on the input of the diastolic blood pressure value and the pulse wave conduction velocity obtained from the pulse and electrocardiogram measured at the time of measuring the diastolic blood pressure in the switch S5. are calculated by the control unit 13' by the operation of and stored in two areas in the register Ll of the RAM 15'. Then, by substituting the value MTTXMP, which is the sum of the pulse wave conduction velocity and the pulse rate, into X in the following equation, y, that is, the diastolic blood pressure value MD can be calculated.

Next, in this embodiment, input of blood pressure data measured by an accurate blood pressure monitor performed by the control unit 13' will be explained.

In step 5A28 of the flowchart of FIG. 13, when key operation of switch S4 is detected, step 5A
If M=1 in step knob 5A29, the process proceeds to step 5A30, where it is determined whether F=1 or 2. If F=1 or 2, the key manual force of the switch S4 was performed in the resting measurement mode or the immediately after exercise measurement mode in the blood pressure measurement mode of MD20 in FIG. It is determined that digit selection for data input/setting has been instructed. However, in this case, the process proceeds to step 5A31, where measurement and input data digit selection processing is performed, and step 7 is performed.
Proceed to display processing in C5.

By the above-mentioned operation, when the measurement mode is at rest or the measurement mode immediately after exercise shown in FIG. 16, it becomes possible to select a digit for inputting blood pressure data, etc. measured by manually pressing the key of switch S4. Although this digit selection processing is not particularly illustrated, it is performed sequentially based on the value of the register J by sequentially adding "1" to the value of the register J from "0" by manually pressing the key of the switch S4. In other words, J = 0 indicates that the electrocardiogram and pulse are being measured when measuring systolic blood pressure at rest or immediately after exercise. If the 84 key is operated at this time, G = 0 is set and the above measurement ends. The flag shown is set, and "1" is added to register J, and digit selection processing for data input/setting is performed. In this digit selection process, in the first case, J=1, so the digit of the systolic blood pressure is selected, and the digit of the systolic blood pressure (N20J or r157J) is displayed blinking like R or S in FIG.

In the next switch 34 key operation, "1" is added and J=
2, and digit selection processing for inputting and setting diastolic blood pressure data is specified.Furthermore, in the next "1-1 addition, J=3, and digit selection processing for inputting and setting pulse rate data is specified. If the key of switch S4 is further pressed manually, the input of the measured blood pressure data is completed.In addition, data setting to the selected digit is performed by pressing the switch S5 to the selected digit, which will be described later. This is done through the setting process.

Note that if F is not 1 or 2 in step 5C30, the process immediately proceeds to step SC5.

That is, in the blood pressure measurement mode, MD23 in FIG.
When the measurement mode is not in the measurement mode at rest or in the measurement mode immediately after exercise shown in MD24, the key input of switch S4 is ignored.

Next, processing for selecting and setting target data for executing biomeasurement will be explained.

In the above step SC29, if M is not 1, the process proceeds to step SC32, and the -1- key manual power of the switch S4 is M.
=2, that is, it is determined whether or not it was performed in biorecall mode. If M=2, step 5C3
Proceeding to step 4, it is further determined whether the above-mentioned key manual input was performed at F=0. And if F=0,
Sui above.

It is determined that the key manual input of step S4 was performed in the bio selection mode shown in MD31 in the biorecall mode of MD30 in FIG. However, in this case, the process proceeds to step SC35, where the register Q is sequentially incremented by "1" to select the digit of the biometric data, and the process proceeds to the display process of step SC5.

With the above operation, when in the bio selection mode shown in FIG. 16, it becomes possible to select the digit of the target data for bio measurement by manually pressing the key of the switch S4.

This digit selection process is performed sequentially based on the value of the register Q by sequentially adding ``I'' to the value of the register Q starting from 10'' by manually pressing the key of the switch S4. That is, when Q=1, the digit of the systolic blood pressure is selected, and the first
As shown in MD31 of FIG. 6, the digit (130) of the systolic blood pressure is displayed blinking.

Furthermore, if switch s4 is pressed manually, “1
' is added and becomes Q=2, the digit of the diastolic blood pressure is selected,
Furthermore, in the next r I J addition, Q=3, and the digit of the pulse data is selected and specified. The setting of the target data to the selected digit is performed manually by pressing the switch s4 after the mode is changed by the switch S2 (F=1 reversal processing in step 5C20).

That is, in step SC34, if F=0, the process proceeds to step 5C36, where it is determined whether F=1 or not, and F=0.
If =1, it is the bio setting mode shown in MD32 in FIG. 16, so the process advances to step 5C37 and performs processing to enable setting of target data to the digit selected in step 5C35 above. . The target data is set in a work area (not shown) of the RAM 15' or in a specific register of the register Kj of the RAMI 5', for example, the register sections KS and KD of the register Ko.
, KP, which is set in the register section corresponding to the selected digit by a switch S5, which will be described later.

As a result of the above-mentioned operation, when in the bio-setting mode shown in FIG. 16, it becomes possible to set the target value of the target data for bio-measurement by manually pressing the key of the switch S4.

In step 5C36, if F=1, the process immediately proceeds to step SC5.

By the above operation, in the high efficiency hassock mode, the bio selection mode shown in MD31 in FIG. 16 or the M
If the mode is not the bio setting mode shown in D32, the key input of the switch S4 is ignored.

Next, in step 5A28 above, the key is turned to switch S.
If the key of switch S5 is not operated manually, it is determined that the key of switch S5 is operated manually, and the process proceeds to step 5A33 to perform the S5 key process. For example, in the M-12 and F-1 bio setting modes, the setting process for the selected digit is performed. In this setting process, the digits are selected in step SC36 and the data made settable in step SC37 is set.

Also, the data measured/digit selected and input in step 5C31 is also transferred to the switch S5 at the end of the process.
register SR of RAMI 5'.

Stored in DR, PR or registers SE, DE, PE. Further, as described above, constants are stored in registers LO and 'Ll by the calculation.

With the above operation, the blood pressure measurement mode shown in FIG. 16 is in the resting measurement mode or the immediately after exercise measurement mode, and
When the input digit selection process for the input data is being performed with the switch S4, the data setting process for the selected digit is performed with the key input of the switch S5. In addition, when the bio setting mode shown in MD32 in the same figure is in effect and the target data can be set to the digit selected by switch S4, the data can be set to the selected digit by manually pressing the key of switch S5. Processing takes place.

When the value of the register G is set to "1" by operating the switches Sl to S5 of the data, step S in FIG.
At C3, it is determined that G=1, and blood pressure data measurement processing is executed. On the other hand, when G=0, display processing is executed.

The above blood pressure data measurement process measures electrocardiograms and pulses to measure maximum and diastolic blood pressure data, and the blood pressure data when inputting the maximum and diastolic blood pressure data at rest and immediately after exercise, Blood pressure data when performing measurement in the normal measurement mode shown in MD22 in FIG. 16 using input data, or the first blood pressure data using similarly input data.
Measurement processing of blood pressure data in the bio-measurement display mode shown in MD33 in FIG. 6 is performed.

Here, the blood pressure data measurement process in step SC4 will be described in detail using the flowchart of FIG. 14.

In step SDI of FIG. 14, it is determined whether M=1, and if M=1, the process proceeds to step SD2, where it is further determined whether F=0. If F=O, then M=1 and MD in FIG. 16 corresponding to F=O
It is determined that the mode is the normal measurement mode shown in FIG.
(pulse wave conduction velocity/pulse rate), and proceeds to step SD4, where the settings stored in the register LO1L1 of the RAM 15' (I! Systolic blood pressure data and diastolic blood pressure data are calculated based on
5' is stored in register MS and register MD.

Next, the process proceeds to step SD5, and after displaying the calculated systolic blood pressure data, diastolic blood pressure data, and measured pulse data as shown in MD22 of FIG. 16, the process proceeds to step 5D20, where G=0 is reset and blood pressure measurement processing is performed. indicates the end,
Return to the main flow shown in FIG. 13.

By the above operation, in the mode of MD21 in FIG. 16, the systolic blood pressure and diastolic blood pressure are displayed by measurement.

In step SD2, if F==0, the process proceeds to step SD6, where it is determined whether F=1. and,
If F=1, it is determined that the blood pressure measurement mode is the resting measurement mode, and in step SD7, the MTT-M, which will be described later, is set.
P is measured, and the process proceeds to step SD8, where the time difference data and pulse rate data measured and stored in the registers MTT and MP are stored in the registers TTR and PR of the RAM 15', respectively, and the main flow of FIG. 13 is performed. The process returns to step SC5 and performs the display process of step SC5.

According to the above operation, when M=1 and F=1,
The blood pressure measurement mode becomes the resting measurement mode, and the M
In the TT-MP measurement process, the electrocardiogram detection section 9 and the pulse detection section 10 measure pulse data and time difference data indicating pulse wave conduction velocity, and the two measured values are RAMI 5'
are stored in registers TTR and PR.

Next, in step SD6, if F=1, the process proceeds to step SD9, and it is determined whether F=2. F=
If it is 2, it is determined that the blood pressure measurement mode is the immediate-after-exercise measurement mode, and in step 5D10, the MTT-MP measurement process is performed, and the process proceeds to step 5DII, where the above measurement is performed and the registers MTT and MP4 are stored. The time difference data and pulse data are stored in the RAM 15'.
The data is stored in TE and PE, the process returns to the main flow in FIG. 13, and the display process of step SC5 is performed.

As a result of the above operation, when M=1 and F=2, the blood pressure measurement mode becomes the immediately-after-exercise measurement mode, and the electrocardiogram detection section 9 and the pulse detection section 10 measure pulse data and time difference data. The measured values are stored in registers TTE and PE of RAM 15'.

Incidentally, if F=2 is not determined in step SD9 of FIG. 14, the process immediately returns to the main flow of FIG. 13.

Next, M in steps SD3, SD7, and 5D10 above.
The TT-MP measurement process will be explained in detail using the flowchart in FIG.

In step SEX of FIG. 15, the control unit 13' outputs a signal a to start the electrocardiogram detection unit 9 to detect an electrocardiogram, and further outputs a signal a to detect a pulse. The pulse detection unit 10 is activated.

Then, proceeding to step 5E24, it is determined whether or not an electrocardiogram wave (electrocardiogram R wave) is detected. When no electrocardiogram is detected in this determination, the process proceeds to step SE5, and it is determined that N=1, and the process proceeds to step SE9. Since N=2 is not detected, this process is terminated, and this process is repeated. After that, when an electrocardiogram is detected, the process proceeds from step SE2 to step SE3, where the timer register T in the work area of the RAM 15' (not shown) is activated to start time measurement, and then the process proceeds to step SE4, where the timer register T in the work area of the RAM 15' (not shown) is started. The flag register N4 is set to ``1'' and the process returns to the departure routine.

Through the above operation, timer T is started upon detection of electrocardiographic waves.

Further, since the flag N=1, when executing the flow thereafter, the process proceeds from step SE2 to step SE5, and it is determined whether N=1 or not. Since N=1, the process proceeds to step SE6 and repeats the determination as to whether or not a pulse has been detected after the electrocardiographic wave has been detected. Then, when a pulse is detected, the timer register T is set in step SE7.
is stopped, and in step SE8, the flag register N is set to [-
2" and return to the departure routine.

As a result of the above operation, when a pulse is detected, the timer T stops and the flag N is set to ``21''. The time difference, that is, the pulse wave velocity data is stored.

Next, in step SE5, it is detected that N=1 is not true, and the process proceeds to step SE9, where it is determined whether N=2. Since N=2, in the next step 5EIO, the next pulse is detected. Pulse data is obtained from the time difference between this second pulse and the previous pulse.

Although not particularly shown, the time difference data of the timer T measured from the electrocardiogram detected in step SE2 and the pulse detected in step SE6 is stored as pulse wave velocity data in the register MTT of the RAM 15', and further After storing the pulse data as pulse data in the register MP of the RAM 15', N=0 is set, indicating completion of the process.

Through the above operations, pulse wave velocity data and pulse rate data are measured, and the pulse wave velocity data (time difference data) and pulse rate data are stored in register MTT and register MP of RAM 15', respectively.

HI-O measurement constant table, display summary - Returning again to FIG. 14, bio-measurement and display/notification in the bio-feedback mode will be explained.

In step 7 SDI of FIG. 14, if M=1, the process proceeds to step 5D12, where it is determined whether M=2 and F=2. If M=2 and F=2, it is determined that the bio-measurement display mode is in the biofeed hack mode, and the process proceeds to step 5D13, where "1" is added to register C (timer C), and in step 5D14, It is determined whether the timer value is 10 seconds or not, and if it is not 10 seconds, the process is ended and this is repeated. Then, when the time reaches ]0 seconds, the process proceeds to step 5D15. In this step 5D15, the above-mentioned MTT-MP measurement process is performed, and as a result, the time difference data and pulse rate data stored in the registers MTT and MP, and the setting values set in the registers LO and Ll (a total of 4 constants) The systolic blood pressure data and the diastolic blood pressure data are calculated based on the registers MS and MD, respectively.
The systolic blood pressure data, diastolic blood pressure data, and pulse rate data are stored in register sections KS, KD, and KP of register Kj designated by address pointer P of RAMI 5', respectively.

Through the above operation, in the bio-measurement display mode, blood pressure data is detected every 10 seconds by pressing the fingertips of the right hand on the electrocardiogram detection section 9 and the pulse detection section 10, and the maximum blood pressure data measured based on the detected data is detected. Blood pressure data, diastolic blood pressure data, and pulse rate data are stored in register sections KS, KD, and KP of a predetermined register Kj of RAM 15', respectively.

Following the processing of step 5D15 above, next step 5
Proceeding to D16, the measured pulse, systolic blood pressure, and diastolic blood pressure selected in the bio selection mode to be measured are compared with the target value data set in the bio setting mode. If both match, the process proceeds to step 7, step 5D17, where a signal is output, the sound alarm unit 16 is activated, and a buzzer sound is used to notify the user. If the two do not match in step 5D16, the process immediately proceeds to step 5D18, which will be described later.

Through the above operation, the measured value and the set target value are compared each time the bio-measurement is performed every 10 seconds, and when both match,
A buzzer will sound.

Note that the above-mentioned match is considered to be a match if the blood pressure is within a predetermined range. For example, if 125 is set as the systolic blood pressure, it is determined that the blood pressure is a match if the measured blood pressure is between 123 and 127.

Next, the process proceeds to step 5D18, where the register Ki is updated to update the value of the address pointer P and store the next measurement data.
Set the address of (i=j+1) and proceed to step 5D1.
Proceeding to step 9, it is determined whether the above biomeasurement is final. This determination processing is performed, for example, by determining whether the updated value of the address pointer P indicates that all registers Kj provided in the RAM have been used. If it is not yet final, the process immediately returns to the main flow in FIG. 13, performs the display process in step SC5, and again performs the display process in step SC5 in the process in FIG.
Repeat steps 2-5D14. If the process is final in step 5D19, the process proceeds to step 5D20, sets G=0 to end the blood pressure measurement process, and returns to the main flow.

By the above operation, the register Kj is sequentially designated every time the high/low measurement is performed every 10 seconds until the end of the measurement, and the measurement data is sequentially stored in the designated register Kj. Then, the above measurement data is also displayed on the LCD 2.

In the display processing of the above-mentioned bio-measurement, for example, MD3 in FIG.
As shown in 3, the target value r125J of systolic blood pressure, which is the selected and set biometric measurement target, is displayed blinking, and
As mentioned above, the bio-measurement values performed every 10 seconds are
Each measured value is compared with a target value, and the comparison result is displayed on the dot matrix display section 2-1. The display shows the measurement results of - times as one dot, which is divided into five vertical stages and displayed while sequentially shifting from the right column to the left column.

For example, when the first measured value is far above the target value, it is displayed on the top row as shown in display top 33-1 shown in MD33 in the figure. This display ton) 33-1 was initially displayed at the top of the rightmost row, and was sequentially shifted to force as the display dots 33-2 and 33-3, which were the subsequent measurement results, were displayed. It is what was done. The reason that the display dot 33-2 is displayed on the second row indicates that the measurement result at this time is slightly higher than the target value. Furthermore, the fact that the display dot 33-3 is displayed in the middle indicates that the measurement result at this time is almost the same as the target value. Furthermore, if the measurement result is slightly lower than the target value, it will be displayed at the bottom of the middle row, and if it is significantly lower than the target value, it will be displayed at the bottom row.

In this way, along with the bio-measurement, the comparison results with the target values are displayed for each measurement so that you can see them at a glance. Also,
As each measurement is repeated, the display is shifted to the left in order to become a graph display, making it possible to see the progress of biofeedback every 10 seconds at a glance.

As described above, by simply wearing the watch on your wrist and using your other hand to press two fingertips against the concave pulse detection part and the electrocardiogram detection electrode on the front, you can measure systolic blood pressure, diastolic blood pressure, or pulse rate. Bio-measurements can be easily performed. therefore,
There is no need to use a large device that is difficult to handle, and it can be carried around at all times, so it can be used anywhere or at any time.
Since it is possible to perform ion measurement and there is no pressure or other influence on the measurement site such as the fingertip, training for mental unity and stability can be carried out without disturbing the mind.

In the above embodiment, the comparison results are sequentially displayed on the display section 2-1 each time the measurement is performed, but after the measurement is completed, the comparison results are
You can also display them all at once by calling 7.

Further, in this embodiment, an example in which the present invention is applied to an electronic wristwatch has been described, but the device itself may be of a wristwatch type, and may be a device dedicated to blood pressure measurement without a clock function. Furthermore, communication functions such as an electronic notebook function and a scheduler function can be incorporated, and various applications can be considered. Further, although the LED and the transistor are used in combination to detect the pulse, other pressure detection sensors may be used. Furthermore, a constant calculated from the input maximum and diastolic blood pressure values, measured pulse rate, and time difference data (pig wave velocity) is set in register LO2LX, but even if registers LO1L and 1 are not provided, the constant calculated from the input maximum and diastolic blood pressure values, measured pulse rate, and time difference data (pig wave velocity) is set. It is also possible to obtain the blood pressure value at that time by calculation.

Furthermore, although there is no indication of the display of blood pressure data and pulse rate data stored in the register Kj, for example,
A switch S6 is provided, and each time the switch S6 is operated, the stored data is sequentially displayed on the display section of the LCD 2.
-3.2-5 can be sequentially switched and displayed.

In the first embodiment as well, the comparison results of the measured data can be displayed in a graph on the LCD 2.

[Effects of the Invention] According to the present invention, the function of measuring systolic and diastolic blood pressure or pulse rate, and the function of comparing the measurement results with target values and notifying the user with a display or the like if they match are incorporated into a small device. This allows you to carry it around with you at all times to perform biofeedback measurements.Also, since the display is a graph, you can quickly and easily read the quality of the measurement results.

[Brief explanation of the drawing]

Figure 1 is an external view of an electronic wristwatch according to an embodiment of the present invention, Figure 2 is a detailed diagram of the internal configuration of the electronic wristwatch, Figure 3 is the main internal configuration of the RAM, and Figure 4 is a program. Flowchart showing the overall flow; FIG. 5 is a flowchart showing details of the blood pressure measurement process in the flowchart of FIG. 4; FIG. 6 is a diagram explaining modes changed by operating switches S1, S2, and S3; FIG. An external view of an electronic wristwatch according to another embodiment of the present invention, FIG. 8 is a detailed view of the liquid crystal display section of the electronic wristwatch, and FIGS. 9 and 10 are cross-sectional views showing the internal structure of the electronic wristwatch. Figure 11 is a block diagram of the internal configuration of the electronic wristwatch. Figure 12 is the main internal configuration of the RAM in the block diagram. Figure 13 is a main flowchart showing the flow of the entire program. Figure 14 is a main flowchart. FIG. 15 is a flowchart showing details of the MTT-MP processing of FIG. 14. FIG. 16 explains modes switched by operating switches S1, S2, S3, and S4. 17 are diagrams showing the correlation between systolic blood pressure or diastolic blood pressure and pulse wave conduction velocity. l, 1'...Watch case body, 1-2...Circuit board, 1-3...Interconnector, 2...LCD (liquid crystal display), 2-1...Dot matrix display section , 2-2...Mode display section, 2-3...Small segment display body, 2-4...Heart display body, 2-5...Large segment display body, 5...Pump chamber, 6... Detection unit, 7... Blood pressure detection device, 9... Electrocardiogram detection unit, 9-1... Electrocardiogram detection electrode, 9-2... Back cover (cardiogram detection electrode), 9-3... Conductive elastic member, 10... Pulse detection unit, 10-1... LED (effect diode), 10-2
... Phototransistor, 11... ROM (fixed memory), 12... Key human power section, 13.13'... Control section (CP Ll), 19...
Decoder/driver section, 20... Display section, 18... Oscillator, 17... Frequency division/timing section, 15.15'... RAM (random access memory), 16... Sound signal Department. Patent applicant: Casio Computer Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 9 Figure 12 Figure 1″fi Figure 17

Claims (1)

[Scope of Claims] 1) Storage means for storing input set blood pressure data;
blood pressure detection means for detecting blood pressure at predetermined time intervals; comparison means for comparing the magnitude of the blood pressure data detected by the blood pressure detection means with the set blood pressure data stored in the storage means; A biofeedback device comprising a notification means for notifying a comparison result. 2) The biofeedback device according to claim 1, wherein the set blood pressure data stored in the storage means is systolic blood pressure data. 3) The biofeedback device according to claim 1, wherein the set blood pressure data stored in the storage means is diastolic blood pressure data. 4) Data storage means for storing at least blood pressure data, pulse rate data, and pulse conduction time data at rest and immediately after exercise, an electrocardiogram detection means, a pulse detection means, and electrocardiograms detected by the electrocardiogram detection means. measuring means for measuring delay time data from the occurrence of the pulse to the detection of the pulse detected by the pulse detecting means; the delay time data measured by the measuring means; the pulse data detected by the pulse detecting means; calculation means for calculating blood pressure data when the delay time data is measured based on the blood pressure data, pulse data and pulse wave conduction time data stored in the data storage means; and storing the input blood pressure data. the blood pressure data storage means, a comparison means for comparing the blood pressure data stored in the blood pressure data storage means with the blood pressure data obtained by the calculation means, and a notification means for notifying the result of the comparison by the comparison means. A biofeedback device characterized by: 5) The biofeedback device according to claim 4, wherein the blood pressure data stored in the blood pressure data storage means is systolic blood pressure data. 6) The biofeedback device according to claim 4, wherein the blood pressure data stored in the blood pressure data storage means is diastolic blood pressure data. 7) The biofeedback device according to claim 4, wherein the blood pressure data stored in the blood pressure data storage means is pulse data. 8) The biofeedback apparatus according to claim 4, wherein the notifying means displays the comparison data obtained as a result of the comparison by the comparing means in a graph and notifies the user.