Biological information measuring device, control method for biological information measuring device, information processing system, and program

Abstract

This prevents the system from showing users inaccurate blood pressure measurement results and also notifies them of any arrhythmias detected during blood pressure measurement. [Solution] A biological information measuring device comprising: a blood pressure measuring means for acquiring information for measuring the blood pressure of a living organism; an arrhythmia information acquiring means for acquiring information regarding the presence or absence of arrhythmia in the living organism during blood pressure measurement; a display means including at least an area capable of displaying blood pressure; an input means for receiving user input; and a control unit, wherein the control unit calculates blood pressure based on the information acquired by the blood pressure measuring means, determines the presence or absence of arrhythmia during blood pressure measurement, and if arrhythmia is detected during blood pressure measurement, displays information indicating that arrhythmia occurred on the display means without displaying the measured blood pressure value.

Description

Technical Field

[0001] The present invention relates to a biological information measurement device capable of measuring a living body's blood pressure, a control method for the biological information measurement device, an information processing system, and a program.

Background Art

[0002] In recent years, it has been increasingly popular to perform health management by measuring information related to an individual's physical condition and health, such as blood pressure values, using a measuring device and recording and analyzing the measurement results. In particular, arrhythmias such as atrial fibrillation (AF) may lead to cerebrovascular and cardiovascular diseases, so it is desirable for the user to be able to easily recognize such abnormalities when they occur.

[0003] In this regard, for example, when atrial fibrillation is detected during blood pressure measurement, a sphygmomanometer that displays the presence of atrial fibrillation together with the blood pressure measurement result has been proposed (for example, Patent Document 1). According to such a sphygmomanometer, the user can quickly recognize the presence of arrhythmia while performing daily health management such as blood pressure measurement.

[0004] Also, in Patent Document 2 that discloses a biological information acquisition device, it is described that when an arrhythmia is detected in an electrocardiogram examination performed prior to blood pressure measurement, the user can be notified of a decrease in the reliability of the blood pressure measurement by notifying the user to that effect.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, if a blood pressure value is displayed as the measurement result even when an arrhythmia is occurring, users may focus on the displayed blood pressure value and overlook the fact that an arrhythmia is occurring. When an arrhythmia is detected, the blood pressure measurement result is inaccurate because the blood pressure value was not accurately measured. If information related to the occurrence of the arrhythmia is overlooked, users may mistakenly believe that the inaccurate blood pressure value is the result of a properly measured blood pressure value.

[0007] In view of the above circumstances, the present invention aims to provide a technology that prevents the user from being shown inaccurate blood pressure measurement results and that can notify the user of arrhythmias detected during blood pressure measurement. [Means for solving the problem]

[0008] To solve the above problems, the present invention adopts the following configuration. That is, A blood pressure measurement means for acquiring information to measure the blood pressure of a living organism, An arrhythmia information acquisition means for acquiring information regarding the presence or absence of arrhythmia in the living body during the measurement of blood pressure, Display means including at least an area capable of displaying the blood pressure, An input means for receiving user input, It has a control unit, The control unit, Based on the information acquired by the blood pressure measurement means, the blood pressure is calculated. If the information acquired by the arrhythmia information acquisition means indicates that an arrhythmia occurred during the measurement of the blood pressure, the display means will display information indicating that an arrhythmia occurred instead of displaying the measured blood pressure value. It is a biological information measurement device.

[0009] Furthermore, the information regarding the presence or absence of arrhythmias acquired by the arrhythmia information acquisition means may be information regarding the presence or absence of arrhythmias detected by other biomedical information measuring devices, or the bio-signals themselves measured by other devices. In addition, "arrhythmia" can be exemplified by atrial fibrillation, atrial flutter, premature contractions, etc.

[0010] With this configuration, if an arrhythmia occurs during blood pressure measurement, the blood pressure value will not be displayed, and only a message indicating the presence of an arrhythmia will be shown. This prevents the user from being shown inaccurate blood pressure measurement results, while also notifying them of any arrhythmias detected during blood pressure measurement.

[0011] Furthermore, the control unit, In response to user operation, the system calculates a first average value, which is the average of the blood pressure measured multiple times at predetermined intervals, and displays the first average value on the display means. If the information acquired by the arrhythmia information acquisition means indicates that an arrhythmia occurred during any of the multiple blood pressure measurements, the display means may display information indicating that an arrhythmia occurred instead of displaying the first average value.

[0012] For example, when measuring blood pressure in the morning and evening, it is preferable from a health management perspective to measure blood pressure multiple times with short intervals and use the average value as the blood pressure value for a single measurement, rather than measuring only once at each measurement opportunity, as this reduces the variability of the measured values. With the above configuration, even when using the average value of multiple measurements as the measurement value for a single measurement opportunity, it is possible to prevent showing the user inaccurate blood pressure measurement results and to promptly notify them of arrhythmias.

[0013] In this specification, terms such as "first," "second," etc., are used to describe various components, but these terms are used solely for the purpose of distinguishing one component from others and do not imply any hierarchy or order. For example, the first component can be called the second component without exceeding the scope of the rights of the present invention, and the second component can also be called the first component.

[0014] The aforementioned biological information measuring device further includes a storage means that stores information relating to blood pressure measurements performed in the past, including information relating to the date and time of the measurement and information including whether or not there was an arrhythmia during the measurement at that date and time. The control unit, The input means receives a request to display information related to past blood pressure measurements held in the storage means to the display means. If the information relating to the blood pressure measurement requested to be displayed includes information indicating that an arrhythmia occurred during the measurement, the display means may display the information indicating that an arrhythmia occurred instead of displaying the blood pressure value from the previous measurement.

[0015] With this configuration, users can view their past measurement history, and even if an arrhythmia was detected during a past measurement, it prevents the user from being shown inaccurate blood pressure measurement results, while also notifying them of any arrhythmias detected during blood pressure measurement. can.

[0016] Furthermore, the control unit, The input means receives a request to calculate a second average value, which is the average value of the blood pressure for each measurement time period within any past period, using the information relating to the blood pressure measurement held in the storage means. If any of the information relating to the multiple blood pressure measurements related to the calculation request includes information indicating that an arrhythmia occurred during the blood pressure measurement, the second average value shall be calculated without using the information relating to that blood pressure measurement. The calculated second average value may be displayed on the display means.

[0017] With this configuration, users can view average values ​​for each time period (e.g., morning / evening measurement opportunities) over any past period (e.g., the last week), and it is possible to prevent the calculation of average values ​​using inaccurate measurements in which arrhythmias were detected.

[0018] Further, the control unit may detect body movement during the measurement of the blood pressure based on the information acquired by the blood pressure measurement means, and if the number of detections of body movement during the measurement of the blood pressure is a predetermined value or more, cause the display means to display that fact. According to such a configuration, when there is a lot of body movement during measurement, it is possible to show the user the possibility that the accuracy of the measured blood pressure value has decreased.

[0019] Further, the arrhythmia information acquisition means may acquire information regarding the presence or absence of arrhythmia of the living body based on the pulse wave information acquired by the blood pressure measurement means. For example, when the blood pressure measurement means calculates the blood pressure based on the pressure pulse wave, it is possible to detect arrhythmia based on the pressure pulse wave.

[0020] Further, the living body information measuring device may further include an electrocardiogram waveform acquisition means for acquiring the electrocardiogram waveform of the living body, and the arrhythmia information acquisition means may acquire information regarding the presence or absence of arrhythmia of the living body based on the electrocardiogram waveform during the measurement of the blood pressure.

[0021] Further, after the control unit displays information indicating that there is arrhythmia without displaying the measured blood pressure value on the display means, if it receives a user operation to display the blood pressure value measured when there is such arrhythmia via the input means, the control unit may cause the display means to display the blood pressure value.

[0022] According to such a configuration, the user can recognize the occurrence of arrhythmia and, based on that, can refer to the measured blood pressure value (assuming that the measured value is inaccurate).

[0023] Further, the present invention can also be grasped as the following method. That is, A control method for a living body information measuring device A step of measuring the blood pressure of a living body, A step of determining the presence or absence of arrhythmia of the living body during the measurement of the blood pressure, The method includes the step of displaying the blood pressure measurement result, If, in the step of determining the presence or absence of arrhythmia, it is determined that arrhythmia was present, then in the step of displaying the measurement results, the measured blood pressure value will not be displayed, but information indicating that arrhythmia was present will be displayed. This is a control method for a biological information measuring device.

[0024] Furthermore, the present invention can also be understood as a program for causing a biological information measuring device to execute the above-described control method, or as a computer-readable recording medium that non-temporarily stores such a program.

[0025] Furthermore, the present invention can also be understood as the following system: An information processing system comprising at least a biological information measuring device for measuring the blood pressure of a living organism, and an information processing terminal that is communicated with the biological information measuring device, The aforementioned information processing terminal is The biological information measuring device receives determination information for determining the presence or absence of arrhythmia in the living body during the measurement of the blood pressure, Based on the aforementioned determination information, the presence or absence of arrhythmia during the measurement of the blood pressure of the living organism is determined. If it is determined that an arrhythmia has occurred during the measurement of the blood pressure of the said living organism, information to that effect is transmitted to the said biological information measuring device. The aforementioned biological information measuring device is equipped with a first display means, If the information processing terminal receives information that an arrhythmia occurred during the measurement of the blood pressure of the living organism, the first display means will display the information that an arrhythmia occurred without displaying the measured blood pressure value. It is an information processing system.

[0026] Such a system can reduce the computational load on the biometric information measuring device, prevent the display of inaccurate blood pressure measurement results to the user without the need for a high-performance computing device, and notify the user of arrhythmias detected during blood pressure measurement.

[0027] Furthermore, the biological information measuring device has an electrocardiogram acquisition means for acquiring the electrocardiogram waveform of the biological body, and the judgment information may be the electrocardiogram waveform.

[0028] Furthermore, the information processing terminal may be equipped with a second display means, which receives the blood pressure value of the living organism measured by the biological information measuring device, and if it is determined that there was no arrhythmia during the measurement of the living organism's blood pressure, it displays the received blood pressure value on the second display means. If it is determined that there was an arrhythmia during the measurement of the living organism's blood pressure, it displays information indicating that there was an arrhythmia on the second display means without displaying the blood pressure value.

[0029] Furthermore, the biological information measuring device transmits pulse wave information related to the blood pressure measurement to the information processing terminal. The information processing terminal may also be equipped with a second display means, which measures the blood pressure of the living body based on the pulse wave information received from the biological information measuring device, and if it is determined that there is no arrhythmia during the measurement of the living body's blood pressure, it displays the measured blood pressure value on the second display means, and if it is determined that there is an arrhythmia during the measurement of the living body's blood pressure, it displays information indicating that there was an arrhythmia on the second display means without displaying the blood pressure value.

[0030] With such a configuration, users can view their blood pressure measurement results on a handheld information processing device, such as a smartphone, and if an arrhythmia is detected during blood pressure measurement, they can recognize its presence without having to look at inaccurate measurements.

[0031] Furthermore, the present invention can also be viewed as an information processing device, a program for causing it to function as the above-mentioned information processing terminal, and a computer-readable recording medium on which such a program is non-temporarily recorded.

[0032] Furthermore, each of the above configurations and processes can be combined with each other to constitute the present invention, provided that no technical inconsistencies arise. [Effects of the Invention]

[0033] According to the present invention, it is possible to prevent the user from being shown inaccurate blood pressure measurement results and to notify the user of arrhythmias detected during blood pressure measurement. [Brief explanation of the drawing]

[0034] [Figure 1] Figure 1 is a block diagram showing a schematic configuration of the blood pressure measuring device according to Embodiment 1. [Figure 2] Figure 2 is a block diagram showing a functional module implemented by the control unit of the blood pressure measuring device according to Embodiment 1. [Figure 3] Figure 3 is a flowchart showing the flow of blood pressure measurement processing by the blood pressure measuring device according to Embodiment 1. [Figure 4] Figure 4A is the first example of a measurement result display screen when an arrhythmia is detected during blood pressure measurement. Figure 4B is the second example of a measurement result display screen when an arrhythmia is detected during blood pressure measurement. [Figure 5] Figure 5 is a flowchart showing the processing flow when the history viewing mode is executed in the blood pressure measurement device according to Embodiment 1. [Figure 6] Figure 6 is a flowchart showing the processing flow when blood pressure measurement is performed in continuous measurement mode in the blood pressure measuring device according to Embodiment 1. [Figure 7] Figure 7 is the first figure showing an example of the measurement result display screen when blood pressure measurement is performed in continuous measurement mode. [Figure 8] Figure 8 is the second figure, showing an example of the measurement result display screen when blood pressure measurement is performed in continuous measurement mode. [Figure 9] Figure 9 is a flowchart showing the processing flow when the blood pressure measurement device according to Embodiment 1 executes the past average viewing mode. [Figure 10] Figure 10 shows an example of the measurement result display screen when blood pressure measurement is performed in the past average viewing mode. [Figure 11]Figure 11 is a block diagram showing a schematic configuration of the biological information measuring device according to Embodiment 2. [Figure 12] Figure 12 is a block diagram showing a functional module realized by the control unit of the biological information measuring device according to Embodiment 2. [Figure 13] Figure 13 is a block diagram showing a schematic configuration of the biological information measuring device according to Embodiment 3. [Figure 14] Figure 14 is a block diagram showing a functional module realized by the control unit of the biological information measuring device according to Embodiment 3. [Figure 15] Figure 15 is a block diagram illustrating the schematic of the biometric information processing system according to Embodiment 4. [Figure 16] Figure 16A is a block diagram showing a functional module implemented by the control unit of the biological information measuring device according to Embodiment 4. Figure 16B is a block diagram showing a functional module implemented by the control unit of the information processing terminal according to Embodiment 4. [Figure 17] Figure 17 is a first flowchart showing the processing flow of the biological information measuring device and the information processing terminal in the biological information processing system according to Embodiment 4. [Figure 18] Figure 18 is a second flowchart showing the processing flow of the biological information measuring device and the information processing terminal in the biological information processing system according to Embodiment 4. [Modes for carrying out the invention]

[0035] <Embodiment 1> Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the following explanation will be provided. Unless otherwise specified, the specific details of each configuration described in the embodiments, their arrangement relationships, etc., are not intended to limit the scope of this invention to those configurations alone.

[0036] The present invention can be applied, for example, to a blood pressure measuring device 1 as shown in Figures 1 and 2. Figure 1 is a block diagram showing a schematic configuration of the blood pressure measuring device 1 in this embodiment, and Figure 2 is a block diagram showing an example of a functional module realized by the control unit 100 of the blood pressure measuring device 1.

[0037] As shown in Figure 1, the blood pressure measuring device 1 according to this embodiment generally has the following components: a power supply unit 10, a display unit 20, an operation unit 30, a storage unit 40, a control unit 100, and a blood pressure measuring unit 200. Although not shown, its external appearance is similar to that of a typical portable upper arm blood pressure monitor consisting of a main body housing, a cuff, and an air tube.

[0038] The power supply unit 10 is the power source for the blood pressure measuring device 1 and can be a rechargeable secondary battery such as a lithium-ion battery, but is not limited to this, and can also be a primary battery, a terminal that can be connected to an external power supply, etc.

[0039] The display unit 20 is a functional unit for displaying various information and can be a display device such as a liquid crystal display (LCD). The operation unit 30 is a functional unit that accepts user operations such as turning the power on / off, executing measurements, and selecting / confirming menus, and can be configured with operation switches. A touch panel display can also be used to serve as both the display unit 20 and the operation unit 30.

[0040] The storage unit 40 is configured to include a main memory such as RAM (Random Access Memory) and ROM (Read Only Memory), and an auxiliary storage device such as an HDD and flash memory, and stores various types of information such as application programs, measurement results such as blood pressure and pulse rate, information on the presence or absence of arrhythmias (described later), and other acquired biological information. The measurement results such as blood pressure and other acquired biological information may be stored in the storage unit 40 in association with time information such as the measurement (acquisition) time. The time information can be measured by, for example, referring to the RTC (Real Time Clock) of the control unit 100 (described later). Furthermore, the auxiliary storage device may be configured to be detachable from the main unit housing.

[0041] The control unit 100 is a functional unit that controls the entire blood pressure measuring device 1 and includes a processor such as a CPU (Central Processing Unit). When the control unit 100 receives user input via the operation unit 30, it controls each component of the blood pressure measuring device 1 to perform various processes such as blood pressure measurement and presentation of various information according to a predetermined program. The predetermined program is stored in the storage unit 40 and read from there. In addition to a CPU, other processors such as a GPU (Graphic Processing Unit), FPGA (Field Programmable Grid Array), and ASIC (Application Specific Integrated Circuit) can also be used.

[0042] Furthermore, the following functional modules, shown in Figure 2, are implemented by the control unit 100: blood pressure value calculation unit 101, pulse rate calculation unit 102, body movement detection unit 103, arrhythmia detection unit 104, display control unit 105, operation reception unit 106, average value calculation unit 107, and past average value calculation unit 108. These functional modules will be described in detail later.

[0043] The blood pressure measurement unit 200 includes a cuff 210, a pressure sensor 221, and an A / D converter (Analog-to- This unit comprises an Analog Front End (AFE) 222 including a digital conversion unit, a pressurizing pump 231, a pump drive circuit 232, an exhaust valve 241, and a valve drive circuit 242, and is a functional unit that measures the user's blood pressure using the so-called oscillometric method. Since the oscillometric method of blood pressure measurement is a well-known technique, a detailed explanation will be omitted.

[0044] The cuff 210 is a component that is wrapped around the user's upper arm and has a configuration that includes a pressurizing pump 231 (pump drive circuit 232) located in the main housing, an air bag (not shown) communicating with an exhaust valve 241 (valve drive circuit 242) via an air tube (not shown), a belt (not shown) containing the air bag, and a pressure sensor 221 provided on the belt.

[0045] The cuff 210's belt is equipped with a fastening mechanism (for example, a hook-and-loop fastener) for securing the cuff 210 to the user's upper arm. When measuring blood pressure using the blood pressure measuring device 1, the cuff 210 is wrapped around the user's upper arm using the belt.

[0046] The pressure sensor 221 can be, for example, a piezoresistive sensor equipped with a piezoelectric element, and can acquire at least the user's pressure pulse wave. In addition, the blood pressure measuring device 1 according to this embodiment calculates the user's blood pressure and pulse rate based on the pressure pulse wave acquired by the pressure sensor 221, and also detects the user's body movement and the presence or absence of arrhythmia during blood pressure measurement, as described later.

[0047] During blood pressure measurement, the control unit 100 controls the pressurizing pump 231 (pump drive circuit 232) and the exhaust valve 241 (valve drive circuit 242) to adjust the cuff pressure of the cuff 210. Specifically, it controls the pressurizing pump 231 to send air into the cuff 210 and inflate the cuff 210 (increase the cuff pressure). After temporarily obstructing blood flow by compressing the blood vessels in the user's upper arm in this way, it controls the pressurizing pump 231 to stop and open the exhaust valve 241, gradually releasing air from the cuff 210 and deflating the cuff 210 (decrease the cuff pressure).

[0048] Next, each functional module shown in Figure 2 will be described. The blood pressure value calculation unit 101 calculates the user's blood pressure value based on the pressure pulse wave acquired by the pressure sensor 221. In this embodiment, the blood pressure value is calculated using the oscillometric method, but it is also possible to calculate the blood pressure value using the Korotkoff method, for example, by providing a microphone on the cuff 210 and detecting Korotkoff sounds.

[0049] The pulse rate calculation unit 102 calculates the user's pulse rate based on the pressure pulse wave (number of pulse wave peaks, etc.) acquired by the pressure sensor 221. The body movement detection unit 103 determines whether and how many times the body moves during blood pressure measurement based on the pressure pulse wave (irregularities in the pulse wave waveform, etc.) acquired by the pressure sensor 221.

[0050] Furthermore, the arrhythmia detection unit 104 determines (detects) the presence or absence of arrhythmia during blood pressure measurement based on the pressure pulse wave (information such as the time interval between peaks of the pulse wave) acquired by the pressure sensor 221. In other words, in this embodiment, the combination of the arrhythmia detection unit 104 and the pressure sensor 221 corresponds to the arrhythmia information acquisition means.

[0051] The display control unit 105 controls the display unit 20 (and its display content). For example, it displays menu selections, measurement results, past history data, etc., on the display unit 20, but the specific display content will be described later.

[0052] The operation reception unit 106 receives user input via the operation unit 30. For example, when the user presses a measurement start button, an item selection button, a confirmation button, etc. (including interfaces represented on images), the unit controls the blood pressure measuring device 1 to perform the corresponding action.

[0053] The single-measurement-opportunity-average-value-calculation unit 107 calculates the average value of the measured blood pressure when blood pressure is measured multiple times (for example, three times) at predetermined intervals (for example, two minutes). In this embodiment, a "continuous measurement mode" that can be selected by user operation is implemented. When blood pressure is measured in this mode, three consecutive measurements are automatically taken at two-minute intervals, and the average value of the three measurements becomes the measurement result for one measurement opportunity. However, even if multiple normal blood pressure measurements are taken, if the conditions for one measurement opportunity are met, the single-measurement-opportunity-average-value-calculation unit 107 can retrospectively calculate the average value using the data from those multiple measurement results and use that as the measurement result for one measurement opportunity.

[0054] The historical average calculation unit 108 calculates the average value for each time period (morning / evening) over any past period stored in the memory unit 40. The period can be selected by the user from a set period such as 3 days, 1 week, 10 days, or 1 month, or it can be determined in 1-day increments. Alternatively, it may only calculate the average value for a predetermined preset period (for example, the most recent week).

[0055] (Flow of blood pressure measurement process) Next, the process flow when measuring blood pressure using the blood pressure measuring device 1 will be explained based on Figure 3. Figure 3 is a flowchart showing the process flow by the blood pressure measuring device 1 when measuring blood pressure in normal mode. Prior to performing blood pressure measurement, the user wraps the cuff 210 around their upper arm and then instructs the device to perform blood pressure measurement in normal mode via the control unit 30.

[0056] After receiving an instruction to measure blood pressure, the blood pressure measuring device 1 acquires the user's pressure pulse wave using the blood pressure measurement unit 200 (S101). Based on the acquired pressure pulse wave, the control unit 100 (blood pressure value calculation unit 101, pulse rate calculation unit 102, body movement determination unit 103) detects the user's body movement (S102), calculates the blood pressure value (S103), and calculates the pulse rate (S104). Furthermore, the control unit 100 (arrhythmia determination unit 104) determines whether or not there is an arrhythmia during blood pressure measurement based on the acquired pressure pulse wave (S105).

[0057] If, in step S105, the control unit 100 (display control unit 105) determines that an arrhythmia occurred during blood pressure measurement, it displays on the display unit 20 that an arrhythmia was present as a measurement result, without displaying the calculated blood pressure value (S106). Figure 4A shows an example of the display unit 20 when displaying the measurement result when an arrhythmia is detected during blood pressure measurement. In the example shown in Figure 4A, the blood pressure display area D1 of the display unit 20, which is used to display the measured blood pressure value, does not display a blood pressure value, but instead displays "AF" to indicate that an arrhythmia (in this case, atrial fibrillation) has been detected. Also, a mark indicating that atrial fibrillation has been detected is flashing on the lower left side of the screen.

[0058] On the other hand, if in step S105 it is determined that there was no arrhythmia during blood pressure measurement, the control unit 100 (body movement determination unit 103) determines whether the number of body movements detected during blood pressure measurement exceeds a predetermined threshold (S107). If in step S107 it is determined that the number of body movements is below the threshold, the control unit 100 (display control unit 105) displays the blood pressure value in the blood pressure display area D1 of the display unit 20 (S109).

[0059] If in step S107 the control unit 100 (display control unit 105) determines that the number of body movements exceeds the threshold, it will indicate that body movement has been detected in an area of ​​the display unit 20 other than the blood pressure display area D1. As a result, a message indicating that the accuracy of the blood pressure reading may be low is displayed (S108), and the blood pressure reading is displayed in the blood pressure display area D1 (S109). Steps S108 and S109 may be executed simultaneously.

[0060] In step S106 or step S109, the blood pressure measuring device 1 displays the blood pressure measurement result on the display unit 20, then stores the measurement result in the storage unit 40 in association with the measurement time information, and ends the series of processes. If an arrhythmia is detected during measurement, the information stored in the storage unit 40 may be either the calculated blood pressure value stored in association with the arrhythmia information, or the calculated blood pressure value may be discarded and only the arrhythmia information stored.

[0061] By displaying the measurement results as described above, it is possible to prevent the user from being shown inaccurate blood pressure measurement results if an arrhythmia is detected during blood pressure measurement, and to notify the user of any arrhythmia detected during blood pressure measurement. Furthermore, even if no arrhythmia is detected, if the number of body movements exceeds a threshold, the accuracy of the calculated blood pressure value is displayed along with the blood pressure value to alert the user.

[0062] (Process flow for displaying past data) Next, the process flow for displaying past measurement data stored in the memory unit 40 on the display unit 20 will be explained based on Figure 5. Figure 5 is a flowchart showing the process for referencing past measurement data (history viewing mode) in the blood pressure measuring device 1. As shown in Figure 5, first the user selects the past measurement data they wish to reference (for example, data read from the memory unit 40 and displayed in a list on the display unit 20) via the operation unit 30 (S201).

[0063] Next, the control unit 100 determines whether the measurement data selected by the user is one in which an arrhythmia was detected during measurement (S202). Specifically, since measurement data in which an arrhythmia was detected is stored with the fact that an arrhythmia was detected and the details of the arrhythmia associated with it, the control unit determines whether the data is such or not. If, in step S202, it is determined that the measurement data selected is not one in which an arrhythmia was detected during measurement, the control unit 100 reads the information of the measured blood pressure value (S203), displays it on the display unit 20 (S205), and terminates the series of processes.

[0064] On the other hand, if step S202 determines that the measurement data indicates the detection of an arrhythmia during measurement, the control unit 100 reads out the arrhythmia information (S204), displays a measurement result screen (as shown in Figure 4A) on the display unit 20 indicating that an arrhythmia was present without displaying the blood pressure value (S205), and terminates the series of processes.

[0065] In step S204, if the memory unit 40 stores information on blood pressure values ​​calculated together with information on arrhythmias, the blood pressure value information is not read out, and only the arrhythmia information is selected and read. On the other hand, if the calculated blood pressure value is discarded during blood pressure measurement and only the arrhythmia information is stored in the memory unit 40, then since there is no target blood pressure value, only the stored arrhythmia information is read out.

[0066] This process allows users to view past measurement results, prevents the display of inaccurate blood pressure measurement results to the user even if an arrhythmia was detected during a past measurement, and notifies the user of any arrhythmias detected during blood pressure measurement.

[0067] (Processing flow in continuous measurement mode) Next, the process flow when multiple blood pressure measurements are taken consecutively at predetermined intervals will be explained based on Figure 6. Figure 6 is a flowchart showing the process flow when the blood pressure measuring device 1 performs blood pressure measurement in continuous measurement mode. Prior to performing blood pressure measurement, the user holds the cuff 210 After wrapping the device around the upper arm, the user is instructed to perform blood pressure measurement in continuous measurement mode via the control unit 30.

[0068] After receiving an instruction to measure blood pressure in continuous measurement mode, the blood pressure measuring device 1 acquires the user's pressure pulse wave using the blood pressure measurement unit 200 (S301). Based on the acquired pressure pulse wave, the control unit 100 (blood pressure value calculation unit 101, pulse rate calculation unit 102, body movement determination unit 103) detects the user's body movement (not shown), calculates the blood pressure value (S302), and calculates the pulse rate (S303). Furthermore, the control unit 100 (arrhythmia determination unit 104) determines whether or not there is an arrhythmia during blood pressure measurement based on the acquired pressure pulse wave (S304). Information on body movement, blood pressure value, pulse rate, and presence or absence of arrhythmia is recorded in the storage unit 40 each time a measurement is taken.

[0069] Next, the control unit 100 determines whether or not blood pressure measurements have been taken a predetermined number of times as one measurement opportunity (S305). If it is determined in step S305 that the predetermined number of measurements have not yet been taken, the control unit 100 waits for a predetermined time (for example, 2 minutes) and then returns to step S301 and repeats the process from there.

[0070] On the other hand, if step S305 determines that a predetermined number of measurements have been performed, the control unit 100 then determines whether or not an arrhythmia was detected in any of the measurements (S307). If step S307 determines that no arrhythmia was detected in any of the measurements, the control unit 100 (average value calculation unit 107) calculates the average value of the blood pressure values ​​calculated in those measurements (S308). Then, the control unit 100 (display control unit 105) displays the calculated average value on the display unit 20 (S309) and ends the series of processes.

[0071] Figure 7 is an explanatory diagram showing an example of the screen display of blood pressure measurement results when measurements are taken in continuous measurement mode. The leftmost screen in Figure 7, labeled "Average Value Display," is the screen that displays the measurement results for one measurement opportunity, and is an example of the screen displayed in step S309. When measurements are taken in continuous measurement mode, the user can transition from the average value display to a screen showing individual measurement results. As shown in Figure 7, it is possible to view individual measurement results by transitioning from the "Average Value Display" to the display of the first measurement result, the second measurement result, and the third measurement result in that order.

[0072] On the other hand, if step S307 determines that an arrhythmia has been detected in any of the multiple measurements, the control unit 100 (display control unit 105) displays information on the display unit 20 indicating that an arrhythmia was present without displaying the average value (S310), and terminates the series of processes.

[0073] Figure 8 is an explanatory diagram showing an example of the screen display of blood pressure measurement results when an arrhythmia is detected during any measurement in continuous measurement mode. The screen labeled "Arrhythmia Display" on the far left of Figure 8 is the screen that displays the measurement results for one measurement opportunity, and is an example of the screen displayed in step S310. Even if an arrhythmia is detected during any measurement, the user can transition to a screen that displays the individual measurement results. As shown in Figure 8, it is possible to view individual measurement results by transitioning from "Arrhythmia Display" to the display of the first measurement result, the second measurement result, and the third measurement result in that order.

[0074] Through the processing described above, even when the average value of multiple measurements is used to show the measurement for a single measurement, it is possible to prevent the user from being shown inaccurate blood pressure measurement results and to promptly notify them of arrhythmias.

[0075] (Process for displaying historical average values) Next, the process flow for viewing the average blood pressure value over any past period in the blood pressure measurement device 1 will be explained based on Figure 9. Figure 9 is a flowchart showing the process for referencing the average blood pressure value measured over any past period in the blood pressure measurement device 1 (past average viewing mode). As shown in Figure 9, first the user selects the past period and time of day (for example, morning / evening) they wish to refer to via the operation unit 30 (S401).

[0076] Subsequently, the control unit 100 determines whether or not there are any measurement data for the period and time range selected by the user in which arrhythmias were detected (S402). If, in step S402, it is determined that there are no measurement data for the range selected by the user in which arrhythmias were detected during measurement, the control unit 100 (past average value calculation unit 108) calculates the average value of the selected set of measurement data (S403). Then, the control unit 100 (display control unit 105) displays the calculated average value on the display unit 20 and ends the series of processes.

[0077] On the other hand, if in step S402 the control unit 100 (past average value calculation unit 108) determines that there are measurement data within the range selected by the user in which an arrhythmia was detected during measurement, it excludes the measurement data in which the arrhythmia was detected and calculates the average value (S404). Then, the control unit 100 (display control unit 105) displays the calculated average value on the display unit 20 and ends the series of processes.

[0078] Figure 10 is an explanatory diagram showing an example of a screen display that appears when arrhythmias are detected in the measurement data within the range selected by the user in the past average viewing mode. The "Average Value Display" screen on the far left of Figure 10 shows the average value calculated by excluding those in which arrhythmias were detected from the measurement data for the period selected by the user. In addition to displaying the average value, as shown in Figure 10, the user can also transition to a screen that displays individual measurement results through user operation.

[0079] This process allows users to view average values ​​for each time period over any given past period, while also preventing the calculation of average values ​​using inaccurate measurements in which arrhythmias were detected.

[0080] ((modified version)) In the above embodiment, if an arrhythmia was detected during blood pressure measurement, the system prevented showing the user an inaccurate blood pressure measurement result by displaying a message indicating that an arrhythmia had been detected instead of displaying the blood pressure value. However, if the user is aware that an arrhythmia was detected during measurement and understands that the measured blood pressure value is inaccurate, the blood pressure value may be displayed as reference information.

[0081] Specifically, for example, the control unit 100 (display control unit 105) displays the measurement result screen as shown in Figure 4B when an arrhythmia is detected during blood pressure measurement. In the example screen display shown in Figure 4B, the blood pressure display area D1, which is for displaying the measured blood pressure value, does not show the blood pressure value. On the other hand, in an area other than the blood pressure display area D1, a message is displayed stating that an arrhythmia (AFib) has been detected and that the calculated blood pressure value is inaccurate, along with operation guidance for viewing the blood pressure value with full awareness of this.

[0082] Then, after the screen shown in Figure 4B is displayed, if the OK button is pressed (i.e., if the control unit 100 (operation reception unit 106) receives an operation indicating that it will display the blood pressure value even though it is aware that it is an inaccurate value), the system will transition to a screen showing the blood pressure value at the time an arrhythmia was detected during measurement. This allows the user to recognize the presence of an arrhythmia and to view the measured blood pressure as a reference value, even though they are aware that it is inaccurate.

[0083] <Embodiment 2> Next, other embodiments of the present invention will be described based on Figures 11 and 12. The biological information measuring device 2 according to this embodiment is a hybrid type biological information measuring device capable of measuring not only blood pressure but also electrocardiogram waveforms. Since the biological information measuring device 2 includes many components in common with the blood pressure measuring device 1 of Embodiment 1, the same reference numerals will be used for components similar to those in Embodiment 1, and repeated explanations will be omitted.

[0084] As shown in Figure 11, the biological information measuring device 2 has the same configuration as the blood pressure measuring device 1, in addition to having an electrocardiogram waveform measuring unit 300. The electrocardiogram waveform measuring unit 300 includes a plurality of electrodes (first electrode 301 and second electrode 302) and an electrocardiogram signal measurement circuit 303. The electrocardiogram signal measurement circuit 303 is a circuit for measuring an electrocardiogram waveform based on an electrocardiogram signal obtained based on the potential difference between two electrodes in contact with the living body, and is composed of an amplifier, filter, A / D conversion circuit, etc.

[0085] Although not shown in the diagram, the first electrode 301 and the second electrode 302 are positioned at separate locations on the main body housing. When the user places one finger of their left or right hand in contact with the first electrode 301 and the other finger of their left or right hand in contact with the second electrode 302, the electrocardiogram signal measurement circuit 303 measures the potential difference between the first electrode 301 and the second electrode 302 as an electrocardiogram waveform (so-called lead I), and by recording this, an electrocardiogram waveform (ECG) is measured.

[0086] Furthermore, as shown in Figure 12, the biological information measuring device 2 includes the following functional modules, which are implemented by the control unit 120: a blood pressure value calculation unit 101, a pulse rate calculation unit 102, a body movement determination unit 103, a display control unit 105, a single measurement average value calculation unit 107, a past average value calculation unit 108, and an arrhythmia determination unit 121.

[0087] In this embodiment, the arrhythmia detection unit 121 detects arrhythmias based on the electrocardiogram waveform measured by the electrocardiogram signal measurement circuit 303, rather than the pulse wave. Specifically, by simultaneously performing blood pressure measurement by the blood pressure measurement unit 200 and electrocardiogram waveform measurement by the electrocardiogram waveform measurement unit 300, the arrhythmia detection unit 121 determines the presence or absence of arrhythmias during blood pressure measurement based on the electrocardiogram waveform acquired during blood pressure measurement. In other words, in this embodiment, the combination of the arrhythmia detection unit 121 and the electrocardiogram waveform measurement unit 300 corresponds to the arrhythmia information acquisition means. Furthermore, the display control unit 105 displays a graph of the acquired electrocardiogram waveform on the display unit 20 in response to user operation.

[0088] The blood pressure measurement process in the biological information measuring device 2 according to this embodiment is the same as that of the blood pressure measuring device 1 in Embodiment 1, except that arrhythmia detection is performed based on the electrocardiogram waveform rather than the pulse wave. The display content of the blood pressure measurement results and the ability to view past history data of blood pressure values ​​are also the same as in the case of the blood pressure measuring device 1.

[0089] As shown in the biological information measuring device 2 of this embodiment, arrhythmias can be detected more accurately during blood pressure measurement by detecting arrhythmias based on the electrocardiogram waveform.

[0090] <Embodiment 3> Next, another embodiment of the present invention will be described based on Figures 13 and 14. The biological information measuring device 3 according to this embodiment is a hybrid type biological information measuring device capable of measuring not only blood pressure but also blood oxygen saturation (SpO2).

[0091] As shown in Figure 13, the biological information measuring device 3 has the same configuration as the blood pressure measuring device 1, in addition to having an SpO2 measuring unit 400. The SpO2 measuring unit 400 is composed of an LED 401 as a light-emitting element and a photodiode 402 as a light-receiving element, and the photodiode 402 receives the reflected red light or infrared light emitted from the LED 401. This will provide the information needed to calculate blood oxygen saturation.

[0092] Furthermore, the SpO2 measurement unit 400 not only measures blood oxygen saturation, but also detects changes in blood flow associated with pulsation as changes in reflected light received by the photodiode 402, and can acquire a pulse wave based on this.

[0093] Furthermore, as shown in Figure 14, the biological information measuring device 3 includes the following functional modules, which are implemented by the control unit 130: a blood pressure value calculation unit 101, a pulse rate calculation unit 102, a body movement determination unit 103, a display control unit 105, a single measurement average value calculation unit 107, a past average value calculation unit 108, an arrhythmia determination unit 131, and an SpO2 calculation unit 132.

[0094] The SpO2 calculation unit 132 calculates the blood oxygen concentration using the information acquired by the SpO2 measurement unit 400 (the intensity of reflected light received by the photodiode 402).

[0095] Furthermore, in this embodiment, the arrhythmia detection unit 131 detects arrhythmias based on photoelectric pulse waves acquired by the SpO2 measurement unit 400, rather than on pressure pulse waves. Specifically, by simultaneously performing blood pressure measurement by the blood pressure measurement unit 200 and measurement by the SpO2 measurement unit 400, the arrhythmia detection unit 131 determines the presence or absence of arrhythmias during blood pressure measurement based on the pulse wave information acquired by the SpO2 measurement unit 400. In other words, in this embodiment, the combination of the arrhythmia detection unit 131 and the SpO2 measurement unit 400 corresponds to the arrhythmia information acquisition means.

[0096] The blood pressure measurement process in the biological information measuring device 3 according to this embodiment is the same as that of the blood pressure measuring device 1 in Embodiment 1, except that arrhythmia detection is performed based on photoplethysmography rather than pressure pulse wave analysis. The display content of the blood pressure measurement results and the ability to view past history data of blood pressure values ​​are also the same as those of the blood pressure measuring device 1.

[0097] <Embodiment 4> (System Configuration) In the embodiments described above, the detection of arrhythmias during blood pressure measurement (determination of the presence or absence of arrhythmias) was performed by the biological information measuring device. However, the detection of arrhythmias during blood pressure measurement may be configured to be performed by another device. That is, the present invention can also be applied as a system including a biological information measuring device and an information processing terminal, as in the embodiments described below. Figure 15 is a block diagram illustrating the configuration of the biological information processing system 4 according to this embodiment.

[0098] As shown in Figure 15, the bio-information processing system 4 according to this embodiment includes a bio-information measuring device 61 equipped with a blood pressure measuring unit 200 and an electrocardiogram waveform measuring unit 300, and a smartphone 62 as an example of an information processing terminal, and these are configured to be able to communicate with each other.

[0099] The biological information measuring device 61 has a hardware configuration that is almost the same as the biological information measuring device 2 according to Embodiment 2, differing only in that it is equipped with a communication unit 50. The communication unit 50 performs the function of communicating with the smartphone 62 and can employ an appropriate communication interface depending on the communication network to be connected, such as a wired communication port or a wireless communication antenna. The method of communication between the biological information measuring device 61 and the smartphone 62 is not particularly limited, but for example, pairing using BLE (Bluetooth® Low Energy) communication or communication using Wi-Fi® (LAN) can be employed.

[0100] As shown in Figure 15, the smartphone 62 includes a power supply unit 510, a display and operation unit 520, a storage unit 540, a communication unit 550, a control unit 500, and other components.

[0101] The power supply unit 510 is the power source for the smartphone 62 and can be a rechargeable secondary battery such as a lithium-ion battery. The display and operation unit 520 can be a touch panel display that combines the functions of information display and input operation reception.

[0102] The storage unit 540 is configured to include a main memory such as RAM and ROM, and an auxiliary storage device such as flash memory, and stores various types of information, such as application programs and various biological information. Measurement results such as blood pressure and other acquired biological information may be stored in the storage unit 540 in association with time information such as the measurement (acquisition) time. The time information can be obtained by, for example, referring to the RTC of the control unit 500. Furthermore, the auxiliary storage device may be configured to be detachable from the main housing (not shown).

[0103] The communication unit 550 performs the function of communicating with the biological information measuring device 61, and can employ an appropriate communication interface depending on the communication network to which it is connected, such as a wired communication port or a wireless communication antenna.

[0104] The control unit 500 is a functional unit that controls the smartphone and includes, for example, a processor such as a CPU and a GPU. When the control unit 500 receives user input via the display operation unit 520, it controls the various components of the smartphone to perform various functions according to a predetermined application program. The predetermined program is stored in the storage unit 540 and read from there.

[0105] Figure 16A is a block diagram showing a part of the functional module realized by the control unit 140 of the biological information measuring device 61, and Figure 16B is a block diagram showing a part of the functional module realized by the control unit 500 of the smartphone 62.

[0106] As shown in Figure 16A, the functional module of the biological information measuring device 61 differs from that of the biological information measuring device 2 of Embodiment 2 in that a communication control unit 109 is added, and an arrhythmia detection unit is absent. The communication control unit 109 performs communication with an external device (e.g., a smartphone 62) via the communication unit 50.

[0107] As shown in Figure 16B, the control unit 500 of the smartphone 62 implements the following functional modules: a communication control unit 501, a display control unit 502, and an arrhythmia detection unit 504. The communication control unit 501 performs communication with an external device (for example, a biological information measuring device 61) via the communication unit 550.

[0108] The display control unit 502 controls the display content of the display operation unit 520. For example, depending on the application program related to cooperation with the biological information measuring device 61, it displays a menu screen (operation reception screen), guidance related to the progress of biological information measurement, biological information measurement results, etc., on the display operation unit 520.

[0109] The operation reception unit 503 receives user input via the user interface displayed on the display operation unit 520. For example, it receives operation input such as starting measurement by the biological information measuring device 61, selecting items, and screen transitions, according to the application program related to cooperation with the biological information measuring device 61.

[0110] As described later, the arrhythmia detection unit 504 determines (detects) the presence or absence of arrhythmia during blood pressure measurement, which is performed simultaneously with the acquisition of the electrocardiogram pattern, based on the electrocardiogram pattern information transmitted from the bio-information measuring device 61. In other words, in this embodiment, the arrhythmia detection process during blood pressure measurement is performed by the smartphone 62, not the bio-information measuring device 61. The information regarding the presence or absence of arrhythmia determined by the arrhythmia detection unit 504 is transmitted from the communication unit 550 to the bio-information measuring device The information is received by the communication unit 50 of the device 61. In other words, in the biological information measuring device 61 of this embodiment, the communication unit 50 corresponds to the arrhythmia information acquisition means.

[0111] (Process flow) Next, the blood pressure and electrocardiogram simultaneous measurement process and the flow of information executed in the biomedical information processing system 4 according to this embodiment will be described based on Figures 17 and 18. In the biomedical information processing system 4 according to this embodiment, it is possible to start simultaneous measurement of blood pressure and electrocardiogram using a smartphone 62. For this reason, the control unit 500 (operation reception unit 503) of the smartphone 62 receives an operation input to start simultaneous measurement of blood pressure and electrocardiogram via the display operation unit 520 (S601). This operation input instruction is transmitted from the smartphone 62 to the biomedical information measuring device 61 via the communication unit 550, and simultaneous measurement of blood pressure and electrocardiogram is started in the biomedical information measuring device 61 (S501).

[0112] When batch measurement is started, the biological information measuring device 61 determines whether the first electrode 201 and the second electrode 202 are in proper contact with the body based on the signals acquired by the electrocardiogram waveform measuring unit 300 (S502). If it is determined that both electrodes are not in proper contact, the electrode contact determination process is repeated. On the other hand, if it is determined in step S502 that both electrodes are in proper contact with the body, the biological information measuring device 61 simultaneously acquires the pressure pulse wave by the blood pressure measuring unit 200 and the electrocardiogram waveform by the electrocardiogram waveform measuring unit 300 (S503, S521).

[0113] The electrocardiogram waveform acquired by the biological information measuring device 61 in step S521 is transmitted to the smartphone 62 via the communication unit 50 (S522), and the smartphone 62 receives the electrocardiogram waveform (S602). The biological information measuring device 61 (control unit 140) continues to acquire the electrocardiogram waveform and determines whether a predetermined time (for example, enough time to acquire a pulse wave for blood pressure measurement) has elapsed (S523). If it is determined that the predetermined time has not elapsed, the process returns to step S522 and the subsequent steps are repeated.

[0114] On the other hand, if it is determined in step S523 that a predetermined time has elapsed, the biological information measuring device 61 terminates the acquisition of the electrocardiogram waveform and transmits this information to the smartphone 62 via the communication unit 50 (S524), and the smartphone 62 receives information that the acquisition of the electrocardiogram waveform has terminated (S603). The smartphone 62, having received the electrocardiogram waveform for the predetermined time, then has the control unit 500 (arrhythmia determination unit 504) perform an analysis process to determine (detect) the presence or absence of arrhythmia during blood pressure measurement (pressure pulse wave acquisition) based on the electrocardiogram waveform (S604).

[0115] Meanwhile, in the biological information measuring device 61, in parallel with acquiring electrocardiogram waveforms, the blood pressure measurement unit 200 acquires pressure pulse waves for blood pressure measurement (S503). Furthermore, based on the acquired pressure pulse waves, the control unit 140 (blood pressure value calculation unit 101, pulse rate calculation unit 102, body movement determination unit 103) detects the user's body movement (S504), calculates the blood pressure value (S505), and calculates the pulse rate (S506).

[0116] Next, referring to Figure 18, the smartphone 62 transmits the result of the arrhythmia determination performed in step S604 to the biometric information measuring device 61 via the communication unit 550 (S605), and the biometric information measuring device 61 receives the determination result (S507). If the determination result received in step S507 indicates that there is an arrhythmia during blood pressure measurement, the biometric information measuring device 61 (display control unit 105) displays on the display unit 20 that there was an arrhythmia as a measurement result, without displaying the calculated blood pressure value (S508, S509).

[0117] On the other hand, if the received judgment result indicates no arrhythmia during blood pressure measurement, the biological information measuring device 61 (body movement determination unit 103) then determines that the number of body movements detected during blood pressure measurement is within a predetermined threshold. It is determined whether or not the number of body movements exceeds the threshold (S508, S510). If it is determined in step S510 that the number of body movements is below the threshold, the biological information measuring device 61 (display control unit 105) displays the blood pressure value and pulse rate on the display unit 20 (S512).

[0118] If step S510 determines that the number of body movements exceeds a threshold, the biological information measuring device 61 (display control unit 105) displays a message indicating that body movement has been detected in an area of ​​the display unit 20 other than the blood pressure display area D1 (S511), and displays the blood pressure value in the blood pressure display area D1 (S512). Steps S511 and S512 may be executed simultaneously.

[0119] Subsequently, the bio-information measuring device 61 transmits the calculated blood pressure value, pulse rate, and number of body movement detections (hereinafter collectively referred to as blood pressure measurement data) to the smartphone 62 via the communication unit 50 (S513), and ends the series of processes. Meanwhile, the smartphone 62 receives the blood pressure measurement data (S606), displays the blood pressure measurement data and electrocardiogram waveform (ECG) on the display operation unit 520 (S607), and ends the series of processes.

[0120] The order of processing described above can be rearranged or omitted as appropriate. For example, the transmission of blood pressure measurement data from the biological information measuring device 61 is not limited to after step S512, but may be performed at other times, such as after step S507. Furthermore, the smartphone 62 may terminate the series of processes after step S605 without transmitting blood pressure measurement data from the biological information measuring device 61.

[0121] Furthermore, since it is undetermined which process—blood pressure calculation or arrhythmia detection—will finish first, step S507 (and step S605) may be executed before the blood pressure calculation in step S505.

[0122] Furthermore, in the above example, step S523 determined whether a predetermined time had elapsed since the start of acquiring the electrocardiogram waveform, but this process may also be performed on the smartphone 62 side. In that case, after the predetermined time has elapsed, the smartphone 62 may send a command to the biometric information measuring device 61 to terminate the acquisition of the electrocardiogram waveform.

[0123] Furthermore, in the smartphone 62, after receiving the electrocardiogram waveform in step S602, the electrocardiogram waveform may be displayed in real time on the display operation unit 602.

[0124] According to the biometric information processing system 4 described above, the determination of whether or not an arrhythmia is present during blood pressure measurement can be performed by an information processing terminal such as a smartphone 62, rather than by the biometric information measuring device 61. This reduces the computational load on the biometric information measuring device, prevents the display of inaccurate blood pressure measurement results to the user without the need for a high-performance computing device, and allows for notification of arrhythmias detected during blood pressure measurement.

[0125] ((modified version)) In addition, in the above-described biological information processing system 4, if an arrhythmia is detected during blood pressure measurement, the display unit 20 or the display operation unit 520 will display a message indicating that an arrhythmia has been detected without displaying the blood pressure value. However, it is also possible to configure the system to display the measured blood pressure value as a reference value, similar to the modified example in Embodiment 1.

[0126] For example, after the display unit 20 of the biological information measuring device 61 displays a message indicating that an arrhythmia is present in step S509, the display control unit 502 of the smartphone 62 displays an interface (button) on the display operation unit 520 indicating whether or not to display a message indicating that an arrhythmia was detected during blood pressure measurement, that the measured blood pressure value is inaccurate, and whether or not to display the blood pressure value measured as a reference value with full knowledge of the above. The system displays an icon. When the operation reception unit 503 receives a user operation to display the blood pressure value, it sends a signal to that effect to the biological information measuring device 61, which then displays the blood pressure value on the display unit 20.

[0127] Similarly, in the case of the smartphone 62, if an arrhythmia occurs during measurement, the blood pressure value may not be displayed in step S607. Instead, an interface may be displayed indicating that an arrhythmia was detected during blood pressure measurement, that the measured blood pressure value is inaccurate, and whether or not to display the blood pressure value measured as a reference value with full knowledge of this. The blood pressure value may then be displayed after permission to display is granted.

[0128] <Other> The above description of embodiments is merely illustrative, and the present invention is not limited to the specific forms described above. The present invention can be modified and combined in various ways within the scope of its technical concept. For example, the configuration according to Embodiment 2 and the configuration according to Embodiment 3 may be combined to create a biological information measuring device that includes a blood pressure measurement unit 200, an electrocardiogram waveform measurement unit 300, and an SpO2 measurement unit 400.

[0129] Furthermore, in the above embodiment, when displaying that an arrhythmia has been detected during blood pressure measurement, the manner of the display may be made different from the manner of display used to notify other measurement errors or equipment malfunctions. Specifically, it can be made clearly distinguishable from other errors by differences in whether the display is lit or flashing, differences in the flashing interval, differences in the display color, etc.

[0130] Furthermore, in embodiments 2 and 3 described above, the electrocardiogram waveform measurement unit 300 and the SpO2 measurement unit 400 are shown as an integrated device with the blood pressure measurement unit 200, but the invention is not limited to this configuration. The electrocardiogram waveform and photoplethysmography waveform acquired by a separate measuring device can be acquired via a communication means. In this case, the communication means becomes the arrhythmia information acquisition means. The present invention can also be applied to wearable type biometric information measurement devices such as wristwatches.

[0131] Furthermore, in Embodiment 4 described above, the biological information measuring device 61 was equipped with a blood pressure measurement unit 200 and an electrocardiogram waveform measurement unit 300. However, the technique of determining the presence or absence of arrhythmia during blood pressure measurement using another information processing terminal is naturally applicable to other biological information measuring devices as shown in Embodiments 1 and 3. In addition, the information processing terminal is not limited to a smartphone 62; other computers, whether portable or stationary, can be used.

[0132] Furthermore, while atrial fibrillation was used as an example of arrhythmia in the above examples, if other arrhythmias (such as atrial flutter or premature contractions) are detected, the system may, in the same manner as in the above embodiments, display a message indicating that atrial flutter or premature contractions have been detected without displaying the blood pressure value. [Explanation of symbols]

[0133] 1. Blood pressure measuring device 2, 3, 61... Biological information measuring device 4. Biological Information Processing System 10, 510...Power supply section 20, 520...Display operation section 30...Operation unit 40, 540...Storage section 62... Smartphone 100, 120, 130, 140, 500... Control Unit 101... Blood pressure calculation unit 102...Pulse rate calculation unit 103...Body movement detection unit 104, 121, 131, 503...Arrhythmia detection unit 105, 502... Display Control Unit 106... Average value calculation unit for one measurement opportunity 107... Past average value calculation section 108, 501... Communications Control Unit 132...SpO2 calculation section 200... Blood pressure measurement unit 210... Cuff 221... Pressure sensor 222···AFE 231... Pressure pump 232... Pump drive circuit 241... Exhaust valve 242... Valve drive circuit 300...Electrocardiogram waveform measurement section 301...1st electrode 302...Second electrode 303...Electrocardiogram signal measurement circuit 400···SpO2 measurement section 401...LED 402... Photodiode

Claims

1. A blood pressure measurement means for acquiring information to measure the blood pressure of a living organism, An arrhythmia information acquisition means for acquiring information regarding the presence or absence of arrhythmia in the living body during the measurement of blood pressure, Display means including at least an area capable of displaying the blood pressure, An input means for receiving user input, It has a control unit, The control unit, Based on the information acquired by the blood pressure measurement means, the blood pressure is calculated. If the information acquired by the arrhythmia information acquisition means indicates that an arrhythmia occurred during the measurement of blood pressure, the display means will display information indicating that an arrhythmia occurred instead of displaying the measured blood pressure value. A device for measuring biological information.

2. The control unit, In response to user operations, the system calculates a first average value, which is the average of the blood pressure measured multiple times at predetermined intervals, and displays the first average value on the display means. If the information acquired by the arrhythmia information acquisition means indicates that an arrhythmia occurred during any of the multiple blood pressure measurements, the display means will display information indicating that an arrhythmia occurred instead of displaying the first average value. A biological information measuring device according to claim 1.

3. The system further includes a storage means that holds information relating to blood pressure measurements performed in the past, including information relating to the date and time of the measurement and information including whether or not there was an arrhythmia during the measurement at that date and time. The control unit, The input means receives a request to display information related to past blood pressure measurements held in the storage means to the display means. If the information relating to the blood pressure measurement requested includes information indicating that an arrhythmia occurred during the measurement, the display means will not display the blood pressure value from the previous measurement, but will instead display the information indicating that an arrhythmia occurred. A biological information measuring device according to claim 1.

4. The control unit, The input means receives a request to calculate a second average value, which is the average value of the blood pressure for each measurement time period within any past period, using the information relating to the blood pressure measurement held in the storage means. If any of the information relating to the multiple blood pressure measurements related to the calculation request includes information indicating that an arrhythmia occurred during the blood pressure measurement, the second average value shall be calculated without using the information relating to that blood pressure measurement. The calculated second average value is displayed on the display means. A biological information measuring device according to claim 3.

5. The control unit, Based on the information acquired by the blood pressure measurement means, body movement during the blood pressure measurement is detected. If the number of body movements detected during the blood pressure measurement exceeds a predetermined value, the display means will display a message indicating this. A biological information measuring device according to claim 1.

6. The arrhythmia information acquisition means acquires information regarding the presence or absence of arrhythmia in the living body based on the pulse wave information acquired by the blood pressure measurement means. A biological information measuring device according to claim 1.

7. The system further includes an electrocardiogram waveform acquisition means for acquiring the electrocardiogram waveform of the aforementioned living organism, The arrhythmia information acquisition means acquires information regarding the presence or absence of arrhythmia in the living body based on the electrocardiogram waveform during the measurement of blood pressure. A biological information measuring device according to claim 1.

8. The control unit, If, after displaying information indicating that an arrhythmia occurred without displaying the measured blood pressure value on the display means, a user operation is received via the input means to display the blood pressure value measured at the time of the arrhythmia, the blood pressure value will be displayed on the display means. A biological information measuring device according to any one of claims 1 to 7.

9. A method for controlling a biological information measuring device. The steps include measuring the blood pressure of a living organism, A step of determining whether or not the body has an arrhythmia during the measurement of the blood pressure, The method includes the step of displaying the blood pressure measurement result, If, in the step of determining the presence or absence of arrhythmia, it is determined that arrhythmia was present, then in the step of displaying the measurement results, the measured blood pressure value will not be displayed, but information indicating that arrhythmia was present will be displayed. A control method for a biological information measurement device.

10. A program for causing a biological information measuring device to perform each of the steps described in claim 9.

11. An information processing system comprising at least a biological information measuring device for measuring the blood pressure of a living organism, and an information processing terminal that is communicated with the biological information measuring device, The aforementioned information processing terminal is The biological information measuring device receives determination information for determining the presence or absence of arrhythmia in the living body during the measurement of the blood pressure, Based on the aforementioned determination information, the presence or absence of arrhythmia during the measurement of the blood pressure of the living organism is determined. If it is determined that an arrhythmia has occurred during the measurement of the blood pressure of the said living organism, information to that effect is transmitted to the said biological information measuring device. The aforementioned biological information measuring device is equipped with a first display means, If the information processing terminal receives information that an arrhythmia occurred during the measurement of the blood pressure of the living organism, the first display means will display the information that an arrhythmia occurred without displaying the measured blood pressure value. Information processing system.

12. The biological information measuring device has an electrocardiogram waveform acquisition means for acquiring the electrocardiogram waveform of the biological body, The aforementioned determination information is the electrocardiogram waveform. The information processing system according to claim 11.

13. The aforementioned information processing terminal is equipped with a second display means, The biological information measuring device receives the blood pressure value of the living organism measured by the biological information measuring device, If it is determined that no arrhythmia occurred during the measurement of the blood pressure of the living organism, the received blood pressure value is displayed on the second display means; if it is determined that an arrhythmia occurred during the measurement of the blood pressure of the living organism, the second display means does not display the blood pressure value but instead displays information indicating that an arrhythmia occurred. The information processing system according to claim 11.

14. The biological information measuring device transmits pulse wave information related to the blood pressure measurement to the information processing terminal. The aforementioned information processing terminal is It is equipped with a second display means, Based on the pulse wave information received from the biological information measuring device, the blood pressure value of the living organism is calculated. If it is determined that there was no arrhythmia during the measurement of the living organism's blood pressure, the measured blood pressure value is displayed on the second display means. If it is determined that there was an arrhythmia during the measurement of the living organism's blood pressure, the second display means does not display the blood pressure value but instead displays information indicating that an arrhythmia was present. The information processing system according to claim 11.

15. The aforementioned information processing terminal is It is equipped with a second display means, The biological information measuring device receives the blood pressure value of the living organism measured by the biological information measuring device, If it is determined that no arrhythmia occurred during the measurement of the blood pressure of the living organism, the received blood pressure value is displayed on the second display means; if it is determined that an arrhythmia occurred during the measurement of the blood pressure of the living organism, the blood pressure value is not displayed on the second display means, but information indicating that an arrhythmia occurred is displayed. If, after the second display means has displayed information indicating that an arrhythmia occurred, the user requests to display the blood pressure value measured at the time of the arrhythmia, the second display means will then display the blood pressure value. The information processing system according to claim 11.

16. A program for causing an information processing device to function as an information processing terminal according to any one of claims 11 to 15.

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