WO2023286254A1 - 生体情報測定装置 - Google Patents
生体情報測定装置 Download PDFInfo
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- WO2023286254A1 WO2023286254A1 PCT/JP2021/026694 JP2021026694W WO2023286254A1 WO 2023286254 A1 WO2023286254 A1 WO 2023286254A1 JP 2021026694 W JP2021026694 W JP 2021026694W WO 2023286254 A1 WO2023286254 A1 WO 2023286254A1
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- 238000005259 measurement Methods 0.000 title claims abstract description 64
- 230000005856 abnormality Effects 0.000 claims abstract description 54
- 238000012545 processing Methods 0.000 claims abstract description 49
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 208000002330 Congenital Heart Defects Diseases 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 230000005831 heart abnormality Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 20
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/681—Wristwatch-type devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/346—Analysis of electrocardiograms
- A61B5/349—Detecting specific parameters of the electrocardiograph cycle
- A61B5/364—Detecting abnormal ECG interval, e.g. extrasystoles, ectopic heartbeats
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- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/332—Portable devices specially adapted therefor
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/346—Analysis of electrocardiograms
- A61B5/349—Detecting specific parameters of the electrocardiograph cycle
- A61B5/352—Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
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- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
Definitions
- the present invention belongs to a healthcare-related technical field, and particularly relates to a biological information measuring device.
- biometric information information related to the physical and health of an individual (hereinafter referred to as biometric information) are measured by a measuring device, and the measurement results are recorded and analyzed by an information processing terminal. is becoming popular.
- Patent Document 1 a biological information measuring device configured to be able to change the sampling period for detecting biological information according to the purpose of diagnosis.
- Patent Document 1 in a biological information measuring apparatus having a measurement unit equipped with a photoplethysmograph and an analysis unit, the sampling period of sensing by the photoplethysmograph is changed according to the connection state of the measurement unit and the analysis unit. is stated. According to such a configuration, it is possible to acquire biometric information at different sampling intervals that match the purpose of measurement (diagnosis) using a single measuring device.
- the sampling period of the measured data can be changed by connecting the measurement unit and the analysis unit, and during normal measurement, the measurement is performed with a long sampling period (low sampling frequency).
- an analysis unit can be connected to acquire data at a short sampling period (high sampling frequency).
- the present invention determines whether or not there is a suspicion of abnormality in an organ to be measured based on biological information measured by a biological information measuring device, and automatically detects the measurement data according to the determination result. It is an object of the present invention to provide a technique capable of switching the sampling frequency of
- the biological information measuring device employs the following configuration. Namely a sensor unit that detects predetermined biological information related to a living organ; an A/D conversion unit that converts a measurement signal output from the sensor unit into a digital signal; a storage unit that stores information including a digital signal related to the measurement signal output from the A/D conversion unit; an analysis processing unit that determines whether there is a suspicion of an abnormality in the organ by analyzing the digital signal; a measurement control unit that changes a sampling frequency related to A/D conversion of the measurement signal under a predetermined condition when the analysis processing unit determines that there is a suspicion of an abnormality in the organ; It is a biological information measuring device characterized by having
- abnormality it is possible to automatically change the sampling frequency in the A/D conversion unit when there is a suspicion of an abnormality (hereinafter simply referred to as "abnormality").
- abnormality it is possible to perform continuous measurement for a long period of time by reducing power consumption with a low sampling frequency during normal operation, while automatically switching to measurement at a high sampling frequency in order to obtain the data necessary for diagnosis when an abnormality occurs. It is possible to provide a biological information measuring device capable of
- the analysis processing unit determines that the organ is suspected to be abnormal when the digital signal satisfies a predetermined second condition, and the measurement control unit determines that the analysis processing unit suspects the organ to be abnormal. If it is determined that there is, the sampling frequency is changed from a predetermined first frequency to a predetermined second frequency set to a value higher than the first frequency over a predetermined predetermined time.
- the second condition referred to here can be, for example, that a predetermined index related to the biometric information deviates from a predetermined threshold value. According to such a configuration, when an abnormality is suspected, biological information can be obtained for a necessary and sufficient time at a high sampling frequency set to obtain necessary and sufficient data for diagnosis. .
- the analysis processing unit determines that there is a suspicion of abnormality in the organ when the digital signal satisfies a predetermined second condition, and the measurement control unit and changing the sampling frequency from a predetermined first frequency to a predetermined second frequency set to a value higher than the first frequency. According to such a configuration, as long as the suspicion of an abnormality continues, it is possible to continue acquiring biological information at a high sampling frequency set to obtain necessary and sufficient data for diagnosis.
- the measurement signal is an electrocardiographic signal
- the analysis processing unit does not determine that there is a suspicion of abnormality in the heart, sampling at the first frequency is performed.
- a heartbeat interval obtained from the digital signal is stored in the storage unit, and when the analysis processing unit determines that there is a suspicion of an abnormality in the heart, it is obtained from the digital signal sampled at the second frequency
- An electrocardiographic waveform may be stored in the storage unit.
- the heartbeat interval can be, for example, an RR interval of a waveform that can be obtained from an electrocardiographic signal.
- the heartbeat interval is continuously stored based on the data of the low sampling frequency in the normal state, and the data is sequentially stored in chronological order, leaving only the amount of data necessary for determining the presence or absence of abnormalities. can be deleted (that is, information necessary for determining the presence or absence of an abnormality is temporarily stored).
- the data acquired at a high sampling frequency specifically the electrocardiographic waveforms of sufficient quality and quantity for diagnosis, will be intentionally deleted (i.e., not temporarily) can be stored. According to this, only the data acquired at the high sampling frequency at the time of abnormality can be stored non-temporarily in the storage unit, and the storage capacity can be saved.
- the organ is the heart
- the measurement signal is an electrocardiographic signal
- the analysis processing unit determines whether there is a suspicion of an abnormality in the heart based on a heartbeat interval calculated based on the digital signal.
- a heartbeat interval calculated based on the digital signal.
- an RR interval of a waveform that can be obtained from an electrocardiographic signal is detected as a heartbeat interval and temporarily stored, and based on variations in the heartbeat interval, it is possible to determine whether there is a suspicion of heart abnormality.
- the analysis processing unit may determine that the abnormality is suspected when the variation value of the heartbeat interval deviates from a predetermined threshold value. That is, the above-mentioned second condition may be "that the variation value of the heartbeat interval deviates from a predetermined threshold value". According to such a configuration, it is possible to easily and reliably determine whether or not there is a suspicion of abnormality.
- the biological information measuring device may be a wearable device configured to be worn on the living body at all times.
- the present invention is suitable for such devices with large restrictions on battery capacity and memory capacity.
- the analysis processing unit may further include notification means for notifying information to that effect.
- notification means for notifying information to that effect.
- the presence or absence of suspicion of an abnormality in an organ to be measured is determined based on the biological information measured by the biological information measuring device, and the sampling frequency of the measurement data is automatically switched according to the determination result.
- FIG. 1A is an external perspective view showing an outline of a wearable electrocardiograph according to an embodiment of the present invention.
- FIG. 1B is a front view showing an outline of the wearable electrocardiograph according to the embodiment of the invention.
- FIG. 2 is a block diagram showing the functional configuration of the wearable electrocardiograph according to the embodiment;
- FIG. 3 is a flowchart showing the flow of electrocardiographic measurement processing by the wearable electrocardiograph according to the embodiment.
- FIG. 4 is a flowchart showing the flow of a subroutine in electrocardiogram measurement processing by the wearable electrocardiograph according to the embodiment.
- FIG. 5A is a first explanatory diagram showing the relationship between an electrocardiographic waveform and heartbeat intervals.
- FIG. 5B is a second explanatory diagram showing an electrocardiogram waveform and heartbeat intervals.
- FIG. 6 is a flowchart showing the flow of electrocardiogram measurement processing according to the modification of the embodiment.
- FIG. 1 is a schematic diagram showing the configuration of a wearable electrocardiograph 1 according to the present embodiment.
- FIG. 1A is an external perspective view of the wearable electrocardiograph 1
- FIG. 1B is a front view of the wearable electrocardiograph 1.
- the wearable electrocardiograph 1 generally includes a control unit (not shown in FIG. 1), an operation unit 107, a display unit 106, a main body 10, a plurality of electrodes 21a, 21b, 21c, 21d, 21e, and 21f, and a belt portion 20 having an electrode portion 21.
- Each electrode of the electrode portion 21 is electrically connected to the body portion 10 via a conductive wire (not shown) or the like arranged inside the belt portion 20, and the user wears the belt portion 20, for example, on the left upper arm.
- the operation unit 107 is composed of a plurality of operation buttons (select button, enter button, power button, etc.).
- the display unit 106 is configured as, for example, a plurality of LED indicators (anomaly notification, communication status display, battery status display, etc.).
- the wearable electrocardiograph 1 includes a control unit 101, an electrode unit 21, an amplifier unit 102, an A/D (Analog to Digital) conversion unit 103, a storage unit 105, a display unit 106, an operation unit 107, a power supply It has a configuration including functional units of a unit 108 , a communication unit 109 , an analysis processing unit 110 and a measurement control unit 111 .
- the control unit 101 is means for controlling the wearable electrocardiograph 1, and includes, for example, a CPU (Central Processing Unit). Upon receiving a user's operation via the operation unit 107, the control unit 101 controls each component of the wearable electrocardiograph 1 so as to perform various processes such as electrocardiogram measurement and information communication according to a predetermined program.
- a predetermined program is stored in a storage unit 105, which will be described later, and is read out from there.
- the control unit 101 also includes an analysis processing unit 110 that analyzes an electrocardiographic signal and a measurement control unit 111 as functional modules. These functional units will be described in detail later.
- the electrode section 21 includes six electrodes 21a, 21b, 21c, 21d, 21e, and 21f, and functions as a sensor section that detects electrocardiographic signals. Specifically, when the wearable electrocardiograph 1 is worn, two electrodes facing each other form a pair, and an electrocardiographic signal is detected based on the potential difference between the paired two electrodes. That is, three types of electrocardiographic signals can be detected simultaneously from three pairs of electrodes. Further, the amplifier section 102 has a function of amplifying the signal output from the electrode section 21 .
- the A/D converter 103 converts the analog signal amplified by the amplifier 102 into a digital signal at a predetermined sampling frequency under the control of the measurement controller 111 and outputs the digital signal. Note that the output signal is processed under the control of the measurement control section 111 and stored in the storage section 105 . Note that the sampling frequency in the A/D conversion section 103 and the content of information stored in the storage section 105 can be changed under the control of the measurement control section 111, as will be described in detail later.
- the timer unit 104 has a function of measuring time by referring to an RTC (Real Time Clock) (not shown). For example, as will be described later, it counts the time when a predetermined event occurs and outputs it.
- RTC Real Time Clock
- the storage unit 105 includes a main storage device (not shown) such as a RAM (Random Access Memory), and stores application programs, data (heartbeat information, electrocardiogram waveform) transmitted from the A/D conversion unit 103, and the like. store various information. In addition to the RAM, it also has a long-term storage medium, such as flash memory.
- a main storage device such as a RAM (Random Access Memory)
- application programs such as a RAM (Random Access Memory)
- data heartbeat information, electrocardiogram waveform
- the display unit 106 includes a light-emitting element such as an LED, and notifies the user of the state of the device, the occurrence of a predetermined event, etc. by lighting or blinking the LED.
- the operation unit 107 includes a plurality of operation buttons, and has a function of receiving an input operation from the user via the operation buttons and causing the control unit 101 to execute processing according to the operation.
- the power supply unit 108 includes a battery (not shown) that supplies power necessary for operating the device.
- the battery may be, for example, a secondary battery such as a lithium ion battery, or a primary battery.
- a configuration including a secondary battery a configuration including a charging terminal or the like may be used.
- the communication unit 109 includes an antenna for wireless communication, a wired communication terminal (none of which are shown), and the like, and has a function of communicating with other devices such as an information processing terminal.
- the structure which the communication part 109 also serves as a charge terminal may be sufficient.
- the analysis processing unit 110 analyzes the data stored in the storage unit 105, determines whether there is a suspicion of abnormality in the heart (or its behavior) based on the heartbeat interval obtained from the data, and outputs the result. do. Specifically, for example, if the fluctuation value of the heartbeat interval deviates from a predetermined threshold value (upper and lower limits), it is determined that there is a suspicion of an abnormality in the heart.
- a predetermined threshold value upper and lower limits
- the measurement control unit 111 controls the sampling frequency of the A/D conversion unit 103 and the content of data stored in the storage unit 105 based on predetermined conditions. Specifically, when there is no suspicion of an abnormality in the heart (when the analysis processing unit 110 does not output an abnormality determination result), the heart is sampled at a low sampling frequency (for example, 30 Hz to 50 Hz) for normal times. Control is performed to digitally convert (sample) the electrical signal, extract the heartbeat interval from the waveform of the signal (hereinafter, information related to the heartbeat interval is also referred to as heartbeat interval data), and store the heartbeat interval data in the storage unit 105. I do.
- the normal sampling frequency is also simply referred to as the low frequency.
- the heartbeat interval can be obtained, for example, by extracting amplitude peaks (corresponding to R waves in an electrocardiogram) in an electrocardiographic waveform and obtaining the time interval between adjacent peaks.
- the storage of the heartbeat interval data in the storage unit 105 is temporary. It is supposed to be erased.
- the measurement control unit 111 obtains an electrocardiogram that can use the sampling frequency as an electrocardiogram. change it to a higher value (for example, 250 Hz to 1000 Hz).
- the sampling frequency at the time of abnormality is simply referred to as a high frequency.
- waveform data (hereinafter referred to as electrocardiogram waveform data) obtained from the electrocardiogram signal digitally converted at a high frequency at the time of abnormality is stored in the storage unit 105 as non-temporary data.
- FIG. 3 is a flowchart showing the procedure of processing when performing electrocardiogram measurement using the wearable electrocardiograph 1 according to this embodiment.
- the user wears the wearable electrocardiograph 1 on, for example, the left upper arm using the belt section 20 so that each electrode of the electrode section 21 is in contact with the skin surface. Then, by operating the operation button, electrocardiogram measurement is started.
- the control unit 101 When electrocardiogram measurement is started, the control unit 101 (measurement control unit 111) first sets the sampling frequency of the A/D conversion unit 103 to a low frequency (S101). Then, an electrocardiographic signal is acquired from the electrode unit 21 (S102), digitally converted at a low frequency in the A/D conversion unit 103, a heartbeat interval is extracted from the waveform of the signal (S103), and the heartbeat interval data is stored. It saves in the unit 105 (S104). Subsequently, the analysis processing unit 110 determines whether or not there is a suspicion of an abnormality in the heart (S105).
- FIG. 4 shows the flow of the subroutine of the abnormality presence/absence determination processing performed in step S105.
- the analysis processing unit 110 confirms whether or not the amount of heartbeat interval data necessary for determining the presence or absence of abnormality is stored in the storage unit 105 (S201).
- the process of step S201 is repeated.
- FIG. 5 shows a graph showing the heartbeat interval data in normal times and the heartbeat interval data in abnormal times.
- FIG. 5A is a diagram showing heartbeat interval data in a normal state as a graph with time on the X axis and heartbeat interval values on the Y axis, together with a graph of the corresponding electrocardiographic waveform.
- FIG. 5B is a diagram showing heartbeat interval data in an abnormal state as a graph with time on the X axis and heartbeat interval values on the Y axis, together with a graph of the corresponding electrocardiographic waveform.
- the dashed lines in the figure indicate the upper and lower thresholds for determining the presence or absence of abnormality, and the thresholds can be, for example, ⁇ 25 ms of the average heartbeat interval.
- step S202 if the fluctuation value of the heartbeat interval does not deviate from the upper and lower limit thresholds, the analysis processing unit 110 determines that the heart (its behavior) is normal (S203) and terminates the subroutine. On the other hand, if the heartbeat interval deviates from the upper and lower limit thresholds, it is determined that there is a suspicion of heart abnormality (S204), and the subroutine ends.
- step S105 if it is determined that there is no suspicion of heart abnormality (normal) in step S105, the process returns to step S102 and the subsequent processes are repeated. On the other hand, if it is determined in step S105 that there is a suspicion of abnormality, the measurement control section 111 changes the sampling frequency in the A/D conversion section 103 to a high frequency (S106). Then, the signal sampled at the high frequency is stored in the storage unit 105 as electrocardiogram waveform data for an electrocardiogram (S107).
- the measurement control unit 111 refers to the timer unit 104 and determines whether or not a predetermined time (for example, 30 seconds) has passed (S108).
- a predetermined time for example, 30 seconds
- the process returns to step S107 and the subsequent processes are repeated.
- the process proceeds to step S109, where the measurement end condition (the end button is pressed, the storage capacity is insufficient, etc.) is met. (S109).
- the measurement termination condition is not satisfied, the process returns to step S101 and the subsequent processes are repeated.
- the measurement termination condition is satisfied.
- the wearable electrocardiograph 1 normally, only the heartbeat interval data necessary for determining the presence or absence of an abnormality is acquired at a low frequency, and when an abnormality is suspected, at a high frequency.
- the process of acquiring electrocardiographic waveform data that can be used for diagnosis and non-temporarily storing it can be automatically performed.
- even wearable devices with limited power supply (battery capacity) and memory capacity can increase the possibility of detecting heart abnormalities by continuous measurement over a long period of time.
- FIG. 6 shows a flowchart of electrocardiographic measurement processing of such a modification.
- the same reference numerals are assigned to the same processing as in the case of the first embodiment, and detailed description thereof will be omitted.
- the flow is generally the same as the electrocardiogram measurement process of the first embodiment. That is, the measurement is started, the sampling frequency is set to a low frequency (S101), the electrocardiographic signal is acquired (S102), the heartbeat interval is extracted from the electrocardiographic signal (S103), and the heartbeat interval data is stored. After that (S104), heart abnormality determination processing is performed (S105).
- processing is subsequently performed to inform the user that there is a risk of the abnormality (S301).
- the notification may be made by lighting/blinking the LED of the display unit 106, or the notification may be made by sound with a configuration including a buzzer or the like. By doing so, the user can take desirable actions for accurate electrocardiographic waveform measurement, such as keeping quiet.
- the control unit 101 performs the process of step S301, changes the sampling frequency to a high frequency (S106), and saves the electrocardiogram waveform data in the storage unit 105 (S107). Then, the analysis processing unit 110 performs heart abnormality determination processing based on the electrocardiographic waveform data (S302). Note that the processing performed in the determination processing in step S302 is the same as the subroutine processing in S105. Beat-to-beat data can of course also be obtained from digital signals sampled at high frequencies.
- step S302 If it is determined in step S302 that there is a suspicion of an abnormality, the process returns to step S107 and the subsequent processes are repeated. On the other hand, when it is judged that it is normal in step S302, it progresses to step S109. Subsequent processing is the same as in the case of the first embodiment.
- the display unit 106 is configured by an LED indicator, but it may be configured to include a liquid crystal screen or the like, or may be configured to serve as a touch panel display that also serves as the operation unit 107 and display unit. Conversely, it is also possible to adopt a configuration that does not include the display section and the operation section.
- the electrocardiographic measurement device described above is of the wearable type
- the present invention can also be applied to devices other than wearable devices.
- the present invention can also be applied to biological information measuring devices (for example, pulse wave measuring devices) other than electrocardiographic measuring devices.
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Abstract
Description
生体の器官に係る所定の生体情報を検出するセンサ部と、
前記センサ部から出力される測定信号をデジタル信号に変換するA/D変換部と、
前記A/D変換部から出力される前記測定信号に係るデジタル信号を含む情報を記憶する記憶部と、
前記デジタル信号を解析することにより、前記器官の異常の疑いの有無を判定する解析処理部と、
前記解析処理部が前記器官に異常の疑いが有ると判定した場合に、前記測定信号のA/D変換に係るサンプリング周波数を所定の条件で変更する測定制御部と、
を有することを特徴とする、生体情報測定装置である。
以下、本発明の具体的な実施形態について図面に基づいて説明する。ただし、この実施形態に記載されている構成の寸法、材質、形状、その相対配置などは、特に記載がない限りは、この発明の範囲をそれらのみに限定する趣旨のものではない。
図1は、本実施形態におけるウェアラブル心電計1の構成を示す概略図であり、図1Aはウェアラブル心電計1の外観斜視図を、図1Bはウェアラブル心電計1の正面図を示している。
次に、心電測定を行う際のウェアラブル心電計1の動作について、図3に基づいて説明する。図3は、本実施形態に係るウェアラブル心電計1を用いて心電測定を行う際の処理の手順を示すフローチャートである。
なお、上記の構成、処理は適宜変更することが可能である。例えば、上記の実施形態1では、異常時の心電波形データの取得を所定時間の経過により終了したが、これ以外の方法により、心電波形データの取得を終了するタイミングを決めるものであってもよい。図6にこのような変形例の心電測定処理のフローチャートを示す。なお、変形例においては、上記実施形態1の場合と同様の処理については同一の符号を付し、詳細な説明を省略する。
上記の各例の説明は、本発明を例示的に説明するものに過ぎず、本発明は上記の具体的な形態には限定されない。本発明は、その技術的思想の範囲内で種々の変形及び組み合わせが可能である。例えば、上記の実施形態では、表示部106はLEDのインジケータによって構成されていが、液晶画面などを備える構成としてもよいし、操作部107と表示部を兼ねるタッチパネルディスプレイを兼ねる構成としてもよい。逆に、表示部や操作部を備えない構成とすることも可能である。
10・・・本体部
101・・・制御部
102・・・アンプ部
103・・・A/D変換部
104・・・タイマ部
105・・・記憶部
106・・・表示部
107・・・操作部
108・・・電源部
109・・・通信部
110・・・解析処理部
111・・・測定制御部
20・・・ベルト部
21a、21b、21c、21d、21e、21f・・・電極
Claims (8)
- 生体の器官に係る所定の生体情報を検出するセンサ部と、
前記センサ部から出力される測定信号をデジタル信号に変換するA/D変換部と、
前記A/D変換部から出力される前記測定信号に係るデジタル信号を含む情報を記憶する記憶部と、
前記デジタル信号を解析することにより、前記器官の異常の疑いの有無を判定する解析処理部と、
前記解析処理部が前記器官に異常の疑いが有ると判定した場合に、前記測定信号のA/D変換に係るサンプリング周波数を所定の条件で変更する測定制御部と、
を有することを特徴とする、生体情報測定装置。 - 前記解析処理部は、前記デジタル信号が所定の第二条件を満たす場合に前記器官に異常の疑いが有ると判定し、前記測定制御部は、前記解析処理部が前記器官に異常の疑いが有ると判定した場合、予め定められた所定時間に亘って、前記サンプリング周波数を所定の第一周波数から、該第一周波数よりも高い値に設定される所定の第二周波数に変更する、
ことを特徴とする、請求項1に記載の生体情報測定装置。 - 前記解析処理部は、前記デジタル信号が所定の第二条件を満たす場合に前記器官に異常の疑いが有ると判定し、前記測定制御部は、前記第二条件が満たされている間、前記サンプリング周波数を所定の第一周波数から、該第一周波数よりも高い値に設定される所定の第二周波数に変更する、
ことを特徴とする、請求項1に記載の生体情報測定装置。 - 前記器官は心臓であり、前記測定信号は心電信号であって、
前記解析処理部が前記心臓の異常の疑いが有ると判定していない場合には、前記第一周波数でサンプリングされた前記デジタル信号から得られる心拍間隔を前記記憶部に記憶し、
前記解析処理部が前記心臓の異常の疑いが有ると判定した場合には、前記第二周波数でサンプリングされた前記デジタル信号から得られる心電波形を前記記憶部に記憶する、
ことを特徴とする、請求項2又は3に記載の生体情報測定装置。 - 前記解析処理部は、前記デジタル信号に基づいて算出される心拍間隔に基づいて前記心臓の異常の疑いの有無を判定する、
ことを特徴とする、請求項4に記載の生体情報測定装置。 - 前記第二条件は、前記心拍間隔の変動値が所定の閾値を逸脱することである、
請求項5に記載の生体情報測定装置。 - 前記生体情報測定装置は、前記生体に常時装着可能に構成されたウェアラブル装置である、
ことを特徴とする、請求項1から6のいずれか一項に記載の生体情報測定装置。 - 前記解析処理部が前記器官に異常の疑いが有ると判定した場合に、その旨の情報を報知する報知手段をさらに有する、
ことを特徴とする、請求項1から7のいずれか一項に記載の生体情報測定装置。
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JP2010094236A (ja) * | 2008-10-15 | 2010-04-30 | Olympus Corp | 心電信号検出装置、心臓治療装置および心電信号検出システム |
JP2010539617A (ja) * | 2007-09-19 | 2010-12-16 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 異常状態検出方法及び装置 |
JP2016505297A (ja) * | 2012-12-03 | 2016-02-25 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | データ収集頻度と悪化検出アルゴリズムの閾値を最適化するシステムと方法 |
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JP2010094236A (ja) * | 2008-10-15 | 2010-04-30 | Olympus Corp | 心電信号検出装置、心臓治療装置および心電信号検出システム |
JP2016505297A (ja) * | 2012-12-03 | 2016-02-25 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | データ収集頻度と悪化検出アルゴリズムの閾値を最適化するシステムと方法 |
JP2016043041A (ja) * | 2014-08-22 | 2016-04-04 | セイコーエプソン株式会社 | 生体情報検出装置及び生体情報検出方法 |
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