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

Abstract

This system prevents the user from being shown inaccurate measurements if an arrhythmia occurs during the measurement of biological information, and also notifies the user of any arrhythmias detected while acquiring biological signals. [Solution] A biological information measuring device that acquires biological signals and calculates measured values ​​for predetermined indicators related to biological signals based on the acquired biological signals, comprising: an arrhythmia information acquisition means for acquiring information on the presence or absence of arrhythmia in the living body during the acquisition of biological signals; a display means including at least an area capable of displaying measured values; an input means for receiving user operation input; and a control unit, wherein the control unit calculates measured values ​​based on the acquired biological signals, and if the information acquired by the arrhythmia information acquisition means indicates that there was an arrhythmia during the acquisition of biological signals, the display means does not display the calculated measured values ​​but instead displays information indicating that there was an arrhythmia.

Description

Technical Field

[0001] The present invention relates to a biological information measurement device, 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 measure information related to an individual's physical condition and health, such as blood pressure and pulse rate, using a measuring device and record and analyze the measurement results for health management. 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 has been proposed that displays the fact that atrial fibrillation was present together with the blood pressure measurement result (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 arrhythmia is detected in an electrocardiogram examination performed prior to blood pressure measurement, it is possible to notify the user 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 an arrhythmia is present but the measurement result is displayed, the user may focus on the displayed value and overlook the fact that an arrhythmia is occurring. If an arrhythmia is detected during the acquisition of biosignals, the calculated measurement value will not be accurate. Therefore, if information regarding the occurrence of the arrhythmia is overlooked, the user may mistakenly believe that the inaccurate measurement value is the result of a properly performed measurement.

[0007] In view of the above circumstances, the present invention aims to provide a technology that prevents the user from being shown inaccurate measurement values ​​when an arrhythmia occurs during the measurement of biological information, and that can notify the user of an arrhythmia detected while acquiring biological signals. [Means for solving the problem]

[0008] To solve the above problems, the present invention adopts the following configuration. That is, A biological information measuring device that acquires biological signals and calculates measured values ​​for predetermined indicators related to the biological signals based on the acquired biological signals, An arrhythmia information acquisition means for acquiring information regarding the presence or absence of arrhythmia in the living body during the acquisition of the biological signal, Display means including at least an area capable of displaying the measured value, An input means for receiving user input, It has a control unit, The control unit, Based on the acquired biological signals, the measured values ​​are calculated. This is a biological information measuring device that, when the information acquired by the arrhythmia information acquisition means indicates that an arrhythmia occurred during the acquisition of the biological signal, displays information indicating that an arrhythmia occurred on the display means without displaying the calculated measurement value.

[0009] 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 biometric information measuring devices, or the biosignals themselves measured by other devices. Furthermore, "arrhythmia" can be exemplified by atrial fibrillation, atrial flutter, premature contractions, etc. The measured values ​​may be, for example, blood pressure, pulse rate, etc.

[0010] With this configuration, if an arrhythmia occurs during the acquisition of biosignals, the measured 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 measurement results, while also allowing notification of arrhythmias detected during measurement.

[0011] The system further includes a storage means that holds information relating to the calculation of the aforementioned measurement values ​​performed in the past, including information relating to the date and time of the calculation and information including whether or not there was an arrhythmia during the acquisition of the aforementioned biological signal at that date and time. The control unit, The input means receives a request to display information relating to past measurements held in the storage means to the display means. If the information relating to the measurement value requested in the display request includes information indicating that an arrhythmia occurred during the acquisition of the biological signal used to calculate the measurement value, the display means may not display the past measurement value, but instead display the information indicating that an arrhythmia occurred during the acquisition of the biological signal.

[0012] With this configuration, users can view their past measurement history, and even if arrhythmias were detected during past measurements, the system can prevent showing users inaccurate measurement results, while also notifying them of any arrhythmias detected during the acquisition of biosignals.

[0013] Furthermore, the control unit, In response to user operations, the system calculates a first average value, which is the average of the measured values ​​obtained when the calculation of the measured values ​​is performed 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 the acquisition of the biological signal in any of the calculations of the multiple measurement values, the display means may display information indicating that an arrhythmia occurred instead of displaying the first average value.

[0014] For example, when measuring blood pressure in the morning and evening each day, it is preferable from a health management perspective to take multiple measurements at short intervals and use the average value as the measurement for a single measurement, rather than taking only one measurement at each measurement opportunity, as this reduces the variability in the measurement values. With the above configuration, even when using the average value of multiple measurements as the measurement for a single measurement opportunity, it is possible to prevent showing inaccurate measurement results to the user and to promptly notify them of arrhythmias.

[0015] 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. It can be called a constituent element.

[0016] Furthermore, the control unit, The input means receives a request to calculate a second mean value, which is the average value over any past period, using the information related to the calculation of the measured values ​​held in the storage means. If any of the information relating to the calculation of the multiple measured values ​​related to the calculation request includes information indicating that an arrhythmia occurred during the acquisition of the biological signal, the information relating to the calculation of the measured value that includes the information indicating that an arrhythmia occurred is excluded from calculating the second average value. The calculated second average value may be displayed on the display means.

[0017] According to such a configuration, the user can view the average value for each time zone (e.g., morning / night measurement opportunities) during any past period (e.g., the most recent one week), and can prevent the average value from being calculated using inaccurate measurement values in which arrhythmia has been detected.

[0018] Further, the biological information measuring device has a pulse wave acquisition means for acquiring the pulse wave of the living body, The arrhythmia information acquisition means may acquire information regarding the presence or absence of arrhythmia of the living body based on the pulse wave.

[0019] <C000092>Further, the biological information measuring device further has 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. <00C0093>

[0020] Further, after the control unit displays information indicating that there is arrhythmia without displaying the measurement value on the display means, when it receives a user operation to display the measurement value calculated when there is such arrhythmia via the input means, the control unit may display the measurement value on the display means.

[0021] According to such a configuration, the user can recognize the occurrence of arrhythmia and can refer to the measured blood pressure value based on that (i.e., on the premise that the measurement value is inaccurate).

[0022] Further, the present invention can also be grasped as the following method. That is, A control method for a biological information measuring device, A step of acquiring a biological signal, A step of calculating a measurement value for a predetermined index related to the biological signal based on the biological signal, A step of determining the presence or absence of arrhythmia of the living body during the acquisition of the biological signal, A step of displaying the measurement result related to the index, and includes The control method for a biological information measuring device is such that, in the step of determining the presence or absence of arrhythmia, if it is determined that an arrhythmia was present, the step of displaying the measurement results does not display the calculated measured value, but instead displays information indicating that an arrhythmia was present.

[0023] 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.

[0024] Furthermore, the present invention can also be understood as the following system: A biological information measuring device that acquires biological signals from a living organism and calculates measured values ​​for a predetermined index related to the biological signals based on the acquired biological signals, and the biological information measuring device An information processing system having an information processing terminal that is connected to a communication network, The aforementioned information processing terminal is The biological information measuring device receives determination information for determining whether or not the biological body has an arrhythmia at least during the acquisition of the biological signal. Based on the aforementioned determination information, the presence or absence of arrhythmia during the acquisition of the biological signal is determined. If an arrhythmia is detected during the acquisition of the aforementioned biological signals, information to that effect is transmitted to the biological information measuring device. The aforementioned biological information measuring device is equipped with a first display means, The information processing system, when it receives information from the information processing terminal indicating that an arrhythmia occurred while acquiring the biological signal, displays the information indicating that an arrhythmia occurred on the first display means without displaying the calculated measurement value.

[0025] Such a system can reduce the computational load on the biometric information measuring device, prevent the display of inaccurate measurement results to the user without the need for a high-performance computing device, and notify the user of any arrhythmias detected during measurement.

[0026] 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.

[0027] Furthermore, the information processing terminal is equipped with a second display means, The biological information measuring device receives the measured value calculated by the said biological information measuring device, If it is determined that no arrhythmia occurred during the acquisition of the biosignal, the received measurement value may be displayed on the second display means. If it is determined that an arrhythmia occurred during the acquisition of the biosignal, the second display means may display information indicating that an arrhythmia occurred without displaying the measurement value.

[0028] Furthermore, the information processing terminal is equipped with a second display means, The biological information measuring device receives the measured value calculated by the said biological information measuring device, If it is determined that no arrhythmia occurred during the acquisition of the biosignal, the received measurement value is displayed on the second display means; if it is determined that an arrhythmia occurred during the acquisition of the biosignal, the measurement value is not displayed on the second display means, but information indicating that an arrhythmia occurred is displayed. If, after displaying information indicating that an arrhythmia occurred on the second display means, the user requests to display the measured value calculated at the time of the arrhythmia, the measured value may be displayed on the second display means.

[0029] With such a configuration, users can refer to the measurement results on their personal information processing terminal, such as a smartphone, and if an arrhythmia is detected during the acquisition of biosignals, they can recognize the presence of the arrhythmia without having to look at inaccurate measurements.

[0030] 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.

[0031] 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]

[0032] According to the present invention, when an arrhythmia occurs while measuring biological information, it is possible to prevent the user from being shown inaccurate measurement values ​​and to notify the user of the arrhythmia detected while acquiring the biological signal. can. [Brief explanation of the drawing]

[0033] [Figure 1] Figure 1 is a block diagram showing a schematic configuration of the biological information 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 biological information measuring device according to Embodiment 1. [Figure 3] Figure 3 is a flowchart showing the flow of blood pressure measurement processing by the biological information measuring device according to Embodiment 1. [Figure 4] Figure 4A is the first figure showing an example of the measurement result display screen when an arrhythmia is detected during blood pressure measurement in Embodiment 1. Figure 4B is the second figure showing an example of the measurement result display screen when an arrhythmia is detected during blood pressure measurement in Embodiment 1. [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 flowchart showing the flow of biological information measurement processing by the biological information measurement device according to Embodiment 3. [Figure 16] Figure 16A is the first figure showing an example of the measurement result display screen when no arrhythmia is detected during biosignal acquisition in Embodiment 3. Figure 16B is the second figure showing an example of the measurement result display screen when arrhythmia is detected during biosignal acquisition in Embodiment 3. [Figure 17] Figure 17 is a block diagram showing the schematic configuration of the biological information measuring device according to Embodiment 4. [Figure 18] Figure 18 is a block diagram showing a functional module realized by the control unit of the biological information measuring device according to Embodiment 4. [Figure 19] Figure 19 is a flowchart showing the flow of biological information measurement processing by the biological information measurement device according to Embodiment 4. [Figure 20] Figure 20A is the first figure showing an example of the measurement result display screen when no arrhythmia is detected during biosignal acquisition in Embodiment 4. Figure 20B is the second figure showing an example of the measurement result display screen when arrhythmia is detected during biosignal acquisition in Embodiment 4. [Figure 21] Figure 21 is a block diagram illustrating the schematic of the information processing system according to Embodiment 5. [Figure 22] Figure 22A is a block diagram showing a functional module implemented by the control unit of the biological information measuring device according to Embodiment 5. Figure 22B is a block diagram showing a functional module implemented by the control unit of the information processing terminal according to Embodiment 5. [Figure 23] Figure 23 is a first flowchart showing the processing flow of the biological information measuring device and the information processing terminal in the information processing system according to Embodiment 5. [Figure 24] Figure 24 is a second flowchart showing the processing flow of the biological information measuring device and the information processing terminal in the information processing system according to Embodiment 5. [Modes for carrying out the invention]

[0034] <Embodiment 1> The following describes specific embodiments of the present invention with reference to the drawings. However, unless otherwise specified, the specific details of each configuration and their arrangement described below are not intended to limit the scope of this invention to those specific components.

[0035] The present invention can be applied, for example, to a biological information measuring device 1 as shown in Figures 1 and 2. The biological information measuring device 1 is a so-called blood pressure monitor and is configured to measure blood pressure and pulse rate. Figure 1 is a block diagram showing an outline of the device configuration of the biological information 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 biological information measuring device 1.

[0036] As shown in Figure 1, the biological information 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 measurement 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.

[0037] The power supply unit 10 is the power source for the biological information 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.

[0038] 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.

[0039] 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.

[0040] The control unit 100 is a functional unit that controls the entire biological information 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 performs various processes such as blood pressure measurement and presentation of various information according to a predetermined program to process the biological information. It controls each component of the measuring device 1. A predetermined program is stored in the memory unit 40 and read from there. In addition to the CPU, a GPU (Graphics Processing Unit) can also be used as the processor. Processing Unit), FPGA (Field Programmable Grid Array), ASIC (Application Specific Integrated circuits and other technologies can be employed.

[0041] 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.

[0042] The blood pressure measurement unit 200 consists of a cuff 210, a pressure sensor 221, an AFE (Analog Front End) 222 including an A / D (Analog-to-Digital) converter, 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 blood pressure measurement using the oscillometric method is a well-known technique, a detailed explanation will be omitted.

[0043] 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.

[0044] 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 biometric information measuring device 1, the cuff 210 is wrapped around the user's upper arm using the belt.

[0045] The pressure sensor 221 can be, for example, a piezoresistive sensor equipped with a piezoelectric element, and acquires at least the user's pressure pulse wave. Furthermore, the bio-information 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.

[0046] 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).

[0047] 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.

[0048] 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 is acquired by the pressure sensor 221. Based on the pressure pulse wave (such as irregularities in the pulse wave waveform), the presence and frequency of body movement during blood pressure measurement are determined.

[0049] 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.

[0050] 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.

[0051] 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 operation reception unit 1 controls the biological information measuring device 1 to perform the corresponding action.

[0052] 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.

[0053] 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).

[0054] (Flow of blood pressure measurement process) Next, the process flow when measuring blood pressure using the biometric information measuring device 1 will be explained based on Figure 3. Figure 3 is a flowchart showing the process flow by the biometric information 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.

[0055] After receiving an instruction to measure blood pressure, the biological information 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).

[0056] If, in step S105, it is determined that an arrhythmia occurred during blood pressure measurement, the control unit 100 (display control unit 105) displays on the display unit 20 that an arrhythmia occurred 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 this manner. In the example shown in Figure 4A, In the blood pressure display area D1 of the display unit 20, which is used to display the measured blood pressure value, "AF" is displayed, indicating that an arrhythmia (in this case, atrial fibrillation) has been detected instead of a blood pressure value. In addition, a mark indicating the detection of atrial fibrillation is flashing on the lower left side of the screen.

[0057] 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).

[0058] If, in step S107, the control unit 100 (display control unit 105) determines that the number of body movements exceeds a threshold, it displays a message in an area of ​​the display unit 20 other than the blood pressure display area D1 indicating that body movement has been detected (and that this may reduce the accuracy of the blood pressure value) (S108), and displays the blood pressure value in the blood pressure display area D1 (S109). Steps S108 and S109 may be executed simultaneously.

[0059] In step S106 or step S109, the biological information measuring device 1 displays the blood pressure measurement result on the display unit 20, then stores the measurement result in the storage unit 40, linked to 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 linked to the arrhythmia information, or the calculated blood pressure value may be discarded and only the arrhythmia information may be stored.

[0060] 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.

[0061] (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 flow for referencing past measurement data (history viewing mode) in the biological information measuring device 1. As shown in Figure 5, first the user selects the past measurement data they wish to refer to (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).

[0062] 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.

[0063] 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.

[0064] In step S204, the blood pressure value calculated together with the arrhythmia information is stored in the memory unit 40. If the information is also stored, the system will select and read only the arrhythmia information without reading the blood pressure value information. 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 the target blood pressure value does not exist in the first place, only the stored arrhythmia information will be read.

[0065] 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.

[0066] (Processing flow in continuous measurement mode) Next, the process flow for performing multiple blood pressure measurements consecutively at predetermined intervals will be explained based on Figure 6. Figure 6 is a flowchart showing the process flow when the biological information measuring device 1 performs blood pressure measurement in continuous measurement 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 continuous measurement mode via the control unit 30.

[0067] After receiving an instruction to measure blood pressure in continuous measurement mode, the biological information 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] Through the processing described above, even when the average of multiple measurements is used to show the measurement value for a single measurement, it is possible to prevent the user from being shown inaccurate blood pressure measurement results and to promptly notify the user of arrhythmias.

[0074] (Process for displaying historical average values) Next, the process flow for viewing the average blood pressure value over any past period in the biological information measuring 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 biological information measuring 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).

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] ((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.

[0080] 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.

[0081] 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.

[0082] <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 biological information 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.

[0083] As shown in Figure 11, the biological information measuring device 2 has the same configuration as the biological information measuring device 1, plus an electrocardiogram waveform measuring unit 300. The electrocardiogram waveform measuring unit 300 includes multiple 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] Furthermore, the blood pressure measurement process in the biological information measuring device 2 according to this embodiment is the same as that of the biological information 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. This is the same as in the case of biological information measuring device 1.

[0088] 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.

[0089] <Embodiment 3> Next, further embodiments of the present invention will be described with reference to Figures 13 to 16. The biological information measuring device 3 according to this embodiment is a so-called pulse oximeter capable of measuring blood oxygen saturation (SpO2) and pulse rate.

[0090] As shown in Figure 13, the biological information measuring device 3, like the biological information measuring device 1, is equipped with a power supply unit 10, a display unit 20, an operation unit 30, and a storage unit 40, and also has an SpO2 measuring unit 400. The configurations of the power supply unit 10, the display unit 20, the operation unit 30, and the storage unit 40 can be the same as those of the biological information measuring device 1 in Embodiment 1, so a detailed explanation is omitted.

[0091] The SpO2 measuring unit 400 is composed of a red LED 411 and an infrared LED 412 as light-emitting elements, and a first photodiode 421 and a second photodiode 422 as light-receiving elements. The red LED 411, infrared LED 412, first photodiode 421, and second photodiode 422 are all provided so as to be positioned in contact with the surface of the human body (for example, the fingertips).

[0092] The red LED 411 emits red light and the infrared LED 412 emits infrared light. The first photodiode 421 and the second photodiode 422 receive the reflected red and infrared light emitted from the red LED 411 and infrared LED 412 and reflected within the body (more specifically within blood vessels), thereby acquiring information (the intensity of each reflected light) for calculating SpO2.

[0093] 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 first photodiode 421 and the second photodiode 422, and can acquire a pulse wave (photoelectric pulse wave) based on this.

[0094] 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: an arrhythmia determination unit 131, an SpO2 calculation unit 132, a pulse rate calculation unit 133, a display control unit 105, an operation reception unit 106, a unit that calculates the average value per measurement opportunity 107, and a unit that calculates the past average value 108.

[0095] 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, the arrhythmia detection unit 131 determines the presence or absence of arrhythmias during the acquisition of biological signals (blood oxygen saturation concentration, pulse rate) based on 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 SpO2 calculation unit 132 calculates the blood oxygen saturation concentration using the information acquired by the SpO2 measurement unit 400 (the ratio of red light to infrared light received by the photodiode). The pulse rate calculation unit 133 calculates the pulse rate based on the pulse wave information acquired by the SpO2 measurement unit 400. The average value calculation unit 107 and the past average value calculation unit 108 are the same as those of the biological information measuring device 1, except that the target biological information is SpO2 and pulse rate instead of blood pressure.

[0097] (Process flow) Next, the processing flow of the biological information measuring device 3 according to this embodiment will be explained based on Figure 15. Figure 15 is a flowchart showing the processing flow when biological information is measured by the biological information measuring device 3. Prior to measurement with the biological information measuring device 3, the user attaches the biological information measuring device 3 to their finger (for example, the index finger of their right hand) and then instructs the device to perform SpO2 and pulse rate measurements via the operation unit 31.

[0098] After receiving the instruction to measure, the biological information measuring device 3 acquires the user's biological information, namely red light and infrared light reflected in the blood vessels, and pulse waves (photoelectric pulse waves) using the SpO2 measurement unit 400 (S501). Based on the acquired information, the control unit 130 (SpO2 calculation unit 132, pulse rate calculation unit 133) calculates the blood oxygen saturation concentration (S502) and the pulse rate (S503). Furthermore, the control unit 130 (arrhythmia determination unit 131) determines whether or not there is an arrhythmia during pulse wave acquisition based on the acquired pulse waves (S504).

[0099] If it is determined in step S504 that no arrhythmia occurred during pulse wave acquisition, the control unit 130 (display control unit 105) displays the blood oxygen saturation concentration calculated in step S502 and the pulse rate calculated in step S503 on the display unit 20 (S505). Figure 16A shows an example of the measurement result screen displayed on the display unit 20 in step S505.

[0100] On the other hand, if in step S504 it is determined that an arrhythmia occurred during pulse wave acquisition, the control unit 130 (display control unit 105) displays the measured blood oxygen saturation value and the fact that an arrhythmia occurred as measurement results on the display unit 20, without displaying the calculated pulse rate (S506). Figure 16B shows an example of the screen displayed on the display unit 20 when an arrhythmia is detected during pulse wave acquisition in this manner. In the example shown in Figure 16B, the area of ​​the display unit 20 for displaying the measured pulse rate does not display the pulse rate, but instead displays "AF" to indicate that an arrhythmia (atrial fibrillation in this case) has been detected.

[0101] In step S505 or step S506, the biological information measuring device 3 displays the measurement result on the display unit 20, then stores the measurement result in the storage unit 40, linked to the measurement time information, and ends the series of processes. Note that, as with the biological information measuring device 1 of Embodiment 1, when viewing past measurement results (history data) stored in the storage unit 40, the pulse rate is not displayed if the past measurement result being viewed is from a time when an arrhythmia was detected. Furthermore, the calculation and display of average values ​​from the storage unit can also be performed in the same manner as with the biological information measuring device 1 of Embodiment 1.

[0102] <Embodiment 4> Next, a fourth embodiment of the present invention will be described with reference to Figures 17 to 20. The bio-information measuring device 4 according to this embodiment is a pulse meter capable of measuring pulse rate, and can be, for example, a wristwatch-type wearable device.

[0103] As shown in Figure 17, the biological information measuring device 4, like the biological information measuring device 1, is equipped with a power supply unit 10, a display unit 20, an operation unit 30, and a storage unit 40, and also has a photopulse wave measuring unit 450. The configurations of the power supply unit 10, the display unit 20, the operation unit 32, and the storage unit 40 can be the same as those of the biological information measuring device 1 in Embodiment 1, so a detailed explanation is omitted.

[0104] The photoelectric pulse wave measuring unit 450 includes a green LED 451 as a light-emitting element and a third photodiode 452 as a light-receiving element. Both the green LED 451 and the third photodiode 452 are provided so as to be positioned in contact with the surface of the human body (for example, the wrist).

[0105] The green LED 451 emits green light, and the third photodiode 452 receives the reflected light emitted from the green LED 451 and reflected from within the body (more specifically, within the blood vessels), thereby detecting the blood flow rate (change in blood vessel volume) that changes with the heartbeat and measuring the pulse wave.

[0106] Furthermore, as shown in Figure 18, the biological information measuring device 4 includes the following functional modules, which are implemented by the control unit 140: an arrhythmia determination unit 141, a pulse rate calculation unit 142, a display control unit 105, an operation reception unit 106, a unit that calculates the average value per measurement opportunity 107, and a unit that calculates the past average value 108.

[0107] In this embodiment, the arrhythmia detection unit 141 detects arrhythmias based on photoplethysmography waves acquired by the photoplethysmography wave measurement unit 450. That is, in this embodiment, the combination of the arrhythmia detection unit 141 and the photoplethysmography wave measurement unit 450 corresponds to the arrhythmia information acquisition means.

[0108] The pulse rate calculation unit 142 calculates the pulse rate based on the pulse wave information acquired by the photoelectric pulse wave measurement unit 450. The average value calculation unit 107 and the past average value calculation unit 108 are the same as those of the biological information measurement device 1, except that the target biological information is pulse rate instead of blood pressure.

[0109] (Process flow) Next, the processing flow of the biometric information measuring device 4 according to this embodiment will be explained based on Figure 19. Figure 19 is a flowchart showing the processing flow when biometric information is measured by the biometric information measuring device 4. Prior to measurement with the biometric information measuring device 4, the user attaches the biometric information measuring device 4 to their wrist or the like, and then instructs the user to perform pulse measurement via the operation unit 32.

[0110] After receiving a measurement instruction, the bio-information measuring device 4 acquires the user's bio-information (i.e., pulse wave) using the photoelectric pulse wave measurement unit 450 (S601). Based on the acquired information, the control unit 140 (pulse rate calculation unit 142) calculates the pulse rate (S603). Furthermore, the control unit 140 (arrhythmia determination unit 141) determines whether or not there is an arrhythmia during pulse wave acquisition based on the acquired pulse wave (S603).

[0111] If it is determined in step S603 that there was no arrhythmia during pulse wave acquisition, the control unit 140 (display control unit 105) displays the pulse rate calculated in step S602 on the display unit 20 (S604). Figure 20A shows an example of the measurement result screen displayed on the display unit 20 in step S604.

[0112] On the other hand, if in step S603 it is determined that an arrhythmia occurred during pulse wave acquisition, the control unit 140 (display control unit 105) displays on the display unit 20 that an arrhythmia occurred as a measurement result, without displaying the calculated pulse rate (S605). Figure 20B shows an example of the screen displayed on the display unit 20 when an arrhythmia is detected during pulse wave acquisition in this manner. In the example shown in Figure 20B, the area of ​​the display unit 20 for displaying the measured pulse rate does not display the pulse rate, but instead displays "AF" to indicate that an arrhythmia (atrial fibrillation in this case) has been detected.

[0113] In step S604 or step S605, the biological information measuring device 4 displays the measurement result on the display unit 20, then stores the measurement result in the storage unit 40, linked to the measurement time information, and ends the series of processes. Note that, as with the biological information measuring device 1 of Embodiment 1, when viewing past measurement results (history data) stored in the storage unit 40, the pulse rate is not displayed if the past measurement result being viewed is from a time when an arrhythmia was detected. Furthermore, the calculation and display of average values ​​from the storage unit can also be performed in the same manner as with the biological information measuring device 1 of Embodiment 1.

[0114] <Embodiment 5> (System Configuration) In the embodiments described above, the detection of arrhythmias during biosignal acquisition (determination of the presence or absence of arrhythmias) was performed by the biosignal measurement device. However, the detection of arrhythmias during biosignal acquisition may be configured to be performed by another device. That is, the present invention can also be applied as a system including a biosignal measurement device and an information processing terminal, as described in the embodiments below. Figure 21 is a block diagram illustrating the schematic configuration of the information processing system 5 according to this embodiment.

[0115] As shown in Figure 21, the information processing system 5 according to this embodiment includes a biological 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.

[0116] 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.

[0117] As shown in Figure 21, 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.

[0118] 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.

[0119] 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).

[0120] 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.

[0121] 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.

[0122] Figure 22A 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 22B is a block diagram showing a part of the functional module realized by the control unit 500 of the smartphone 62.

[0123] As shown in Figure 22A, 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.

[0124] As shown in Figure 22B, 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.

[0125] 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.

[0126] 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.

[0127] As will be 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 waveform, based on the electrocardiogram waveform 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 and received by the communication unit 50 of the bio-information measuring device 61. In other words, in the bio-information measuring device 61 in this embodiment, the communication unit 50 corresponds to the arrhythmia information acquisition means.

[0128] (Process flow) Next, the blood pressure and electrocardiogram simultaneous measurement process and the flow of information executed in the information processing system 5 according to this embodiment will be explained based on Figures 23 and 24. In the information processing system 5 according to this embodiment, the smartphone 62 can be used to initiate simultaneous measurement of blood pressure and electrocardiogram. For this reason, the control unit 500 (operation reception unit 503) of the smartphone 62 receives an operation input to initiate simultaneous blood pressure and electrocardiogram measurement via the display operation unit 520 (S801). This operation input instruction is transmitted from the smartphone 62 to the biological information measurement device 61 via the communication unit 550, and simultaneous measurement of blood pressure and electrocardiogram is started in the biological information measurement device 61 (S701).

[0129] 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 (S702). 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 S702 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 (S703, S721).

[0130] The electrocardiogram waveform acquired by the biological information measuring device 61 in step S721 is transmitted to the smartphone 62 via the communication unit 50 (S722), and the smartphone 62 receives the electrocardiogram waveform (S802). The biological information measuring device 61 (control unit 140) continues to acquire the electrocardiogram waveform and checks whether a predetermined time (for example, enough time to acquire a pulse wave for blood pressure measurement) has elapsed. A determination is made (S723). If it is determined that the predetermined time has not elapsed, the process returns to step S722 and the subsequent processing is repeated.

[0131] On the other hand, if it is determined in step S723 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 (S724), and the smartphone 62 receives information that the acquisition of the electrocardiogram waveform has terminated (S803). 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 (S804).

[0132] Meanwhile, in the biological information measuring device 61, in parallel with acquiring the electrocardiogram waveform, the blood pressure measurement unit 200 acquires a pressure pulse wave for blood pressure measurement (S703). Furthermore, based on the acquired pressure pulse wave, 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 (S704), calculates the blood pressure value (S705), and calculates the pulse rate (S706).

[0133] Next, referring to Figure 24, the smartphone 62 transmits the result of the arrhythmia determination performed in step S804 to the biometric information measuring device 61 via the communication unit 550 (S805), and the biometric information measuring device 61 receives the determination result (S707). If the determination result received in step S707 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 (S708, S709).

[0134] On the other hand, if the received determination result is that there was no arrhythmia during blood pressure measurement, the biological information measuring device 61 (body movement determination unit 103) then determines whether the number of body movements detected during blood pressure measurement exceeds a predetermined threshold (S708, S710). If, in step S710, it is determined 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 (S712).

[0135] If the number of body movements is determined to exceed a threshold in step S710, 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 (S711), and displays the blood pressure value in the blood pressure display area D1 (S712). Steps S711 and S712 may be executed simultaneously.

[0136] 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 (S713), and ends the series of processes. Meanwhile, the smartphone 62 receives the blood pressure measurement data (S806), displays the blood pressure measurement data and electrocardiogram waveform (ECG) on the display operation unit 520 (S807), and ends the series of processes.

[0137] 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 S712, but may be performed at other times, such as after step S707. Alternatively, the blood pressure measurement data may not be transmitted from the biological information measuring device 61, and the smartphone 62 may terminate the series of processes after step S805.

[0138] Furthermore, since it is undetermined which process—blood pressure calculation or arrhythmia detection—will finish first, step S707 (and step S805) may be executed before the blood pressure calculation in step S705.

[0139] Furthermore, in the above example, step S723 determined whether a predetermined time (for example, enough time to acquire a pulse wave for blood pressure measurement) had elapsed since the start of acquiring the electrocardiogram waveform. However, this process may 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 biomedical information measuring device 61 to terminate the acquisition of the electrocardiogram waveform.

[0140] Furthermore, in the smartphone 62, after receiving the electrocardiogram waveform in step S802, the electrocardiogram waveform may be displayed in real time on the display operation unit 520.

[0141] According to the information processing system 5 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 notification of arrhythmias detected during blood pressure measurement.

[0142] ((modified version)) In the above-described information processing system 5, 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.

[0143] For example, after the display unit 20 of the biometric information measuring device 61 displays a message indicating that an arrhythmia is present in step S709 above, the display control unit 502 of the smartphone 62 displays an interface (button icon) on the display operation unit 520 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, knowing this. Then, when the operation reception unit 503 receives a user operation to display the blood pressure value, it sends a signal to the biometric information measuring device 61 to that effect, causing the biometric information measuring device 61 to display the blood pressure value on the display unit 20.

[0144] Similarly, in the case of the smartphone 62, if an arrhythmia occurs during measurement, the blood pressure value may not be displayed in step S807. 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.

[0145] <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.

[0146] Furthermore, in the above embodiment, when displaying that an arrhythmia has been detected during the acquisition of biological signals, the manner of 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 flashing intervals, differences in display colors, etc.

[0147] Furthermore, in the above embodiment 2, the electrocardiogram waveform measurement unit 300 is exemplified as a device integrated with the blood pressure measurement unit 200, but it is not limited to this, and it can be configured to acquire electrocardiogram waveforms or photoplethysmography waves acquired by a separate measuring device via communication means. The means of communication will become the means of acquiring arrhythmia information.

[0148] Furthermore, in Embodiment 5 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 arrhythmias during biological signal acquisition using another information processing terminal is naturally applicable to other biological information measuring devices as shown in Embodiments 1, 3, and 4. In addition, the information processing terminal is not limited to a smartphone 62; other information processing devices, whether portable or stationary, can be used.

[0149] 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, premature contractions, etc., have been detected, without displaying the blood pressure value. [Explanation of symbols]

[0150] 1, 2, 3, 4, 61... Biological information measuring device 5. Information Processing Systems 10, 510...Power supply section 20...Display section 30...Operation unit 40, 540...Storage section 62... Smartphone 100, 120, 130, 140, 500... Control Unit 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 411...Red LED 412...Infrared LED 421...First photodiode 422...Second photodiode 450...Photoplethysmogram measuring section 451...Green LED 452...Third photodiode 520...Display operation section

Claims

1. A biological information measuring device that acquires biological signals and calculates measured values ​​for predetermined indicators related to the biological signals based on the acquired biological signals, An arrhythmia information acquisition means for acquiring information regarding the presence or absence of arrhythmia in the living body during the acquisition of the biological signal, Display means including at least an area capable of displaying the measured value, An input means for receiving user input, It has a control unit, The control unit, Based on the acquired biological signals, the measured values ​​are calculated. If the information acquired by the arrhythmia information acquisition means indicates that an arrhythmia occurred during the acquisition of the biological signal, the display means will display information indicating that an arrhythmia occurred instead of displaying the calculated measurement value. A device for measuring biological information.

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

3. The control unit, In response to user operations, the system calculates a first average value, which is the average of the measured values ​​obtained when the calculation of the measured values ​​is performed 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 the acquisition of the biological signal in any of the calculations of the multiple measurement values, the display means will display information indicating that an arrhythmia occurred without displaying the first average value. A biological information measuring device according to claim 1.

4. The control unit, The input means receives a request to calculate a second mean value, which is the average value over any past period, using the information related to the calculation of the measured values ​​held in the storage means. If any of the information relating to the calculation of the multiple measured values ​​related to the calculation request includes information indicating that an arrhythmia occurred during the acquisition of the biological signal, the information relating to the calculation of the measured value that includes the information indicating that an arrhythmia occurred is excluded, and the second average value is calculated. The calculated second average value is displayed on the display means. The biological information measuring device according to claim 2.

5. It has 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. A biological information measuring device according to claim 1.

6. The control unit, If, after displaying information indicating that an arrhythmia occurred without displaying the measured value on the display means, a user operation is received via the input means to display the measured value calculated at the time of the arrhythmia, the measured value will be displayed on the display means. A biological information measuring device according to any one of claims 1 to 5.

7. A method for controlling a biological information measuring device. Steps to acquire biosignals, A step of calculating a measured value for a predetermined index related to the biological signal based on the biological signal, A step of determining whether or not the biological body has an arrhythmia during the acquisition of the biological signal, The process includes the step of displaying the measurement results related to the aforementioned indicator, 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, information indicating that arrhythmia was present will be displayed instead of displaying the calculated measured value. A control method for a biological information measurement device.

8. A program for causing a biological information measuring device to perform each of the steps described in claim 7.

9. An information processing system comprising: a biological information measuring device that acquires biological signals from a living organism and calculates measured values ​​for predetermined indicators related to the biological signals based on the acquired biological signals; 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 whether or not the biological body has an arrhythmia at least during the acquisition of the biological signal. Based on the aforementioned determination information, the presence or absence of arrhythmia during the acquisition of the biological signal is determined. If an arrhythmia is detected during the acquisition of the aforementioned biological signals, information to that effect is transmitted to the biological information measuring device. The aforementioned biological information measuring device is equipped with a first display means, If information indicating that an arrhythmia occurred is received from the information processing terminal while acquiring the biological signal, the first display means will display the information indicating that an arrhythmia occurred without displaying the calculated measurement value. Information processing system.

10. 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 9.

11. The aforementioned information processing terminal is equipped with a second display means, The biological information measuring device receives the measured value calculated by the said biological information measuring device, If it is determined that no arrhythmia occurred during the acquisition of the biosignal, the received measurement value is displayed on the second display means; if it is determined that an arrhythmia occurred during the acquisition of the biosignal, the second display means displays information indicating that an arrhythmia occurred without displaying the measurement value. The information processing system according to claim 9.

12. The aforementioned information processing terminal is It is equipped with a second display means, The biological information measuring device receives the measured value calculated by the said biological information measuring device, If it is determined that no arrhythmia occurred during the acquisition of the biosignal, the received measurement value is displayed on the second display means; if it is determined that an arrhythmia occurred during the acquisition of the biosignal, the measurement value is not displayed on the second display means, but information indicating that an arrhythmia occurred is displayed. If, after displaying information indicating that an arrhythmia occurred on the second display means, a user operation is received to display the measured value calculated at the time of the arrhythmia, the measured value will be displayed on the second display means. The information processing system according to claim 9.

13. A program for causing an information processing device to function as an information processing terminal according to any one of claims 9 to 12.

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