WO2024047837A1 - 生体信号計測システム - Google Patents

生体信号計測システム Download PDF

Info

Publication number
WO2024047837A1
WO2024047837A1 PCT/JP2022/032932 JP2022032932W WO2024047837A1 WO 2024047837 A1 WO2024047837 A1 WO 2024047837A1 JP 2022032932 W JP2022032932 W JP 2022032932W WO 2024047837 A1 WO2024047837 A1 WO 2024047837A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
electrode
measurement system
signal
biological signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/032932
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
賢一 松永
健斗 渡辺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to US19/107,896 priority Critical patent/US20260096763A1/en
Priority to PCT/JP2022/032932 priority patent/WO2024047837A1/ja
Priority to JP2024543726A priority patent/JP7841599B2/ja
Publication of WO2024047837A1 publication Critical patent/WO2024047837A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7225—Details of analogue processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
    • A61B5/0006—ECG or EEG signals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
    • A61B5/0024—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system for multiple sensor units attached to the patient, e.g. using a body or personal area network
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0026—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the transmission medium
    • A61B5/0028—Body tissue as transmission medium, i.e. transmission systems where the medium is the human body
    • 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
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/251—Means for maintaining electrode contact with the body
    • A61B5/256—Wearable electrodes, e.g. having straps or bands
    • 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
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • 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
    • A61B5/30—Input circuits therefor
    • 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
    • A61B5/30—Input circuits therefor
    • A61B5/307—Input circuits therefor specially adapted for particular uses
    • A61B5/308—Input circuits therefor specially adapted for particular uses for electrocardiography [ECG]
    • 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]
    • A61B5/332—Portable devices specially adapted therefor
    • 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
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6824—Arm or wrist
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0204—Operational features of power management
    • A61B2560/0214—Operational features of power management of power generation or supply

Definitions

  • the present invention relates to a biological signal measurement system.
  • Electrocardiogram measurement which is one type of biopotential measurement
  • the potential difference between electrodes placed on both the left and right sides of the human body is measured.
  • a measurement system has been proposed in which a device 301 is attached to the center of the torso, wiring 303 is run through compression wear 302, and electrodes 304 are provided to contact the left and right waist regions (Non-Patent Document 1).
  • the wiring connecting the left and right electrodes forms a handcuff-like loop, which creates a strong restraint that restricts the movement of the body.
  • the present invention has been made to solve the above problems, and enables bioelectrical potential to be easily measured even if the wiring between two electrodes is cut and the device is divided into two devices.
  • the purpose is to
  • the biosignal measurement system includes two electrode devices and a biosignal generation device, and each of the two electrode devices includes an electrode that measures biopotential in a target human body, and an electrode that measures biopotential in a target human body.
  • a non-inverting amplifier circuit that inputs to a non-inverting amplification terminal, amplifies it and outputs it from an output terminal, and quantization that converts the amplified signal output from the output terminal of the non-inverting amplifier circuit into digital data to generate biopotential information.
  • a circuit a wireless transmitter that transmits biopotential information to a biosignal generation device, and an FM transmitter that converts a voltage signal output from an output terminal of the non-inverting amplifier circuit into an FM signal and transmits the FM signal to the other electrode device.
  • an FM receiver that receives an FM signal transmitted from another electrode device to its own electrode device, converts it into a voltage signal, and outputs it; and an adjustment that adjusts the voltage signal output from the FM receiver under set conditions. It includes an adjustment circuit that outputs a signal to the inverting input terminal of the non-inverting amplifier circuit, and a power source that supplies power to the non-inverting amplifier circuit, the quantization circuit, the radio transmitter, the FM transmitter, the FM receiver, and the adjustment circuit.
  • the FM signal transmitted from one of the two electrode devices to the other and the FM signal transmitted from the other to the other have different frequencies
  • the biosignal generating device is configured to transmit the FM signal transmitted from each of the two electrode devices. It has a wireless receiver that receives biopotential information and an arithmetic circuit that generates a biosignal waveform using the biopotential information received by the wireless receiver.
  • two electrode devices and a biological signal generation device are connected by wireless communication, and two electrode devices are connected by FM communication, so that Even if the wiring is cut and the device is divided into two devices, the biopotential can be easily measured.
  • FIG. 1A is a configuration diagram showing the configuration of a biological signal measurement system according to Embodiment 1 of the present invention.
  • FIG. 1B is a configuration diagram showing a partial configuration of a biological signal measurement system according to Embodiment 1 of the present invention.
  • FIG. 2 is an explanatory diagram showing the concept of the biological signal measurement system according to Embodiment 1 of the present invention.
  • FIG. 3 is a configuration diagram showing the configuration of a biological signal measurement system according to Embodiment 2 of the present invention.
  • FIG. 4 is a configuration diagram showing the configuration of a biological signal measurement system according to Embodiment 3 of the present invention.
  • FIG. 5 is a configuration diagram showing the configuration of a biological signal measurement system according to Embodiment 4 of the present invention.
  • FIG. 6 is a configuration diagram showing the configuration of a conventional biological signal measurement system.
  • Embodiment 1 First, a biological signal measurement system according to Embodiment 1 of the present invention will be described with reference to FIGS. 1A and 1B.
  • This system includes two first electrode devices 100a, a second electrode device 100b, and a biosignal generating device 130.
  • the first electrode device 100a includes an electrode 101a that measures biopotential in a target human body, and a non-inverting amplifier circuit 102a that inputs the measured biopotential to a non-inverting amplification terminal, amplifies it, and outputs it from an output terminal. , a quantization circuit 103a that converts the amplified signal output from the output terminal of the non-inverting amplifier circuit 102a into digital data to generate biopotential information, and a wireless transmitter that transmits the biopotential information to the biosignal generating device 130. 104a.
  • the first electrode device 100a also includes an FM transmitter 105a, an FM receiver 106a, and an adjustment circuit 107a.
  • the FM transmitter 105a converts the voltage signal output from the output terminal of the non-inverting amplifier circuit 102a into an FM signal, and transmits the converted FM signal to the second electrode device 100b via the transmitting antenna 109a.
  • the FM receiver 106a converts the FM signal transmitted from the second electrode device 100b to the first electrode device 100a and received by the receiving antenna 110a into a voltage signal and outputs the voltage signal.
  • the first electrode device 100a outputs the voltage signal output from the FM receiver 106a as an adjustment signal adjusted under set conditions to the inverting input terminal of the non-inverting amplifier circuit 102a.
  • the output of the non-inverting amplifier circuit 102a is also input to the inverting input terminal.
  • the signal input from the adjustment circuit 107a to the inverting input terminal of the non-inverting amplifier circuit 102a is set to Vdev2, and the non-inverting amplifier circuit
  • the output of 102a is Vout1
  • the first electrode device 100a also includes a power source 108a that supplies power to a non-inverting amplifier circuit 102a, a quantization circuit 103a, a wireless transmitter 104a, an FM transmitter 105a, an FM receiver 106a, and an adjustment circuit 107a.
  • the second electrode device 100b includes an electrode 101b that measures biopotential in a target human body, and a non-inverting amplifier circuit 102b that inputs the measured biopotential to a non-inverting amplification terminal, amplifies it, and outputs it from an output terminal. , a quantization circuit 103b that converts the amplified signal output from the output terminal of the non-inverting amplifier circuit 102b into digital data to generate biopotential information, and a wireless transmitter that transmits the biopotential information to the biosignal generation device 130. 104b.
  • the second electrode device 100b also includes an FM transmitter 105b, an FM receiver 106b, and an adjustment circuit 107b.
  • the FM transmitter 105b converts the voltage signal output from the output terminal of the non-inverting amplifier circuit 102b into an FM signal, and transmits the converted FM signal to the first electrode device 100a via the transmission antenna 109b.
  • the FM receiver 106b converts the FM signal transmitted from the first electrode device 100a to the second electrode device 100b and received by the receiving antenna 110b into a voltage signal and outputs the voltage signal.
  • the adjustment circuit 107b outputs the voltage signal output from the FM receiver 106b as an adjustment signal adjusted under set conditions to the inverting input terminal of the non-inverting amplifier circuit 102b.
  • the second electrode device 100b also includes a power source 108b that supplies power to a non-inverting amplifier circuit 102b, a quantization circuit 103b, a wireless transmitter 104b, an FM transmitter 105b, an FM receiver 106b, and an adjustment circuit 107b.
  • the FM signal transmitted from the first electrode device 100a to the second electrode device 100b and the FM signal transmitted from the second electrode device 100b to the first electrode device 100a have different frequencies.
  • the biosignal generation device 130 includes a wireless receiver 131 that receives biopotential information transmitted from each of the first electrode device 100b and the second electrode device 100b, and a biopotential information received by the wireless receiver 131. It has an arithmetic circuit 132 that generates a signal waveform. The arithmetic circuit 132 generates an electrocardiographic signal waveform using, for example, two pieces of biopotential information transmitted from each of the first electrode device 100b and the second electrode device 100b attached to any two of the four limbs of the human body. can do.
  • the biological signal generation device 130 also includes a memory 133 that stores the biological signal waveform generated by the arithmetic circuit 132.
  • FIG. 2 shows the concept of the biological signal measurement system according to the first embodiment.
  • the first electrode device 100a and the second electrode device 100b may be attached to at least two locations on the limbs such as hands and feet.
  • the measurement targets of this biological signal measurement system are not limited to electrocardiograms, but can also be applied to measurements of myoelectric waves and electroencephalograms, etc. By applying this system, the discomfort of wiring is eliminated and the degree of freedom in electrode placement is increased. , it is also expected to have the effect of expanding the range of devices that can be implemented.
  • the non-inverting amplifier circuit 102a of the first electrode device 100a and the non-inverting amplifier circuit 102b of the second electrode device 100b are coupled to each other.
  • Such a configuration is similar to the configuration of an oscillation circuit, so regarding the phase rotation and amplification caused by delays in mutually coupled signals, oscillation will occur if the phase rotation is 180 degrees and the amplification is 1 or more. .
  • a 1 kHz signal will have a phase rotation of 36 degrees.
  • a delay of 0.5 ms causes a phase rotation of 180 degrees, so the possibility of oscillation cannot be denied. Therefore, in the mutual coupling between the non-inverting amplifier circuit 102a and the non-inverting amplifier circuit 102b described above, it is necessary to minimize the delay in the portion where the voltage signals are coupled.
  • Electrodes 101a and the electrode 101b will be explained.
  • Various types of electrodes can be used, including Ag/AgCl electrodes used in medical applications, conductive cloth electrodes, and metal electrodes.
  • usability can be further improved by using a non-contact electrode configuration in which the sensor device is worn over clothing using cloth or metal electrodes that do not need to be adhered to the human body.
  • the non-contact electrode configuration one based on capacitive coupling is preferable because it allows high frequency communication to easily pass through.
  • each of the adjustment circuit 107a and the adjustment circuit 107b be configured from a minimum of one stage of operational amplifier.
  • the non-inverting amplifier circuit 102a and the non-inverting amplifier circuit 102b will be explained. Since the biopotential is a very weak signal, it is necessary to amplify the signal using a non-inverting amplifying circuit 102a and a non-inverting amplifying circuit 102b, which are configured by an amplifying circuit using a filter circuit and an operational amplifier. In particular, by using a non-inverting amplifier circuit, it is possible to realize a system configuration equivalent to that of an instrumentation amplifier with high common mode suppression ability.
  • the amplification stages of the non-inverting amplifier circuit 102a and the non-inverting amplifier circuit 102b require high input impedance in order to reduce the loss of biopotential; Even with this configuration, noise is less likely to increase.
  • the resistance that determines the input impedance also affects the gain setting, and further contributes directly to thermal noise, resulting in a reduction in the S/N ratio. Therefore, a non-inverting amplifier circuit is effective.
  • the FM communication frequencies used when mutually coupling the non-inverting amplifier circuit 102a and the non-inverting amplifier circuit 102b need to have different frequencies. This is because if the same frequency is used, mutual interference will occur, making it impossible to obtain the desired coupling. This corresponds to dividing the band in communication, and by increasing the frequencies used, the present invention can be used not only in a configuration where electrode devices are paired, but also between a larger number of electrode devices. Become.
  • the wireless transmitter 104a can be configured with one communication module, and can be connected to receive the measured potential output from the quantization circuit 103a and transmit it to the biological signal generation device 130. It would be good if you could.
  • any standard such as carrier communication, Wi-Fi (registered trademark), Bluetooth (registered trademark), etc. can be applied. ( Figure 2). It is necessary to select transmitters and receivers that match the communication standard.
  • the biological signal generation device 130 can be a smartphone or the like that is a terminal close to the user, who is the human body to be measured. Further, if Wi-Fi or the like is used, a server or the like can be used as the biological signal generation device 130.
  • the function required of the biosignal generation device 130 is to receive signals from a plurality of electrode devices and calculate a target biopotential. These functions can be implemented (built-in) in any electrode device without using the biological signal generation device 130 (FIG. 3).
  • the second electrode device 100b includes a wireless receiver 104b', and a biological signal generation device 130a including an arithmetic circuit 132 and a memory 133 is added.
  • the wireless receiver 104b' of the second electrode device 100b receives the biopotential information transmitted from the first electrode device 100a, and calculates the biopotential by combining it with the biopotential information of the second electrode device 100b.
  • the wireless receiver 104b' of the second electrode device 100b receives the biopotential information transmitted from the first electrode device 100a, and calculates the biopotential by combining it with the biopotential information of the second electrode device 100b.
  • Embodiment 2 Next, a biological signal measurement system according to Embodiment 2 of the present invention will be described with reference to FIG. 4.
  • This system includes two first electrode devices 100a', a second electrode device 100b', and a biosignal generating device 130.
  • the first electrode device 100a' includes an electrode 101a, a non-inverting amplifier circuit 102a, a quantization circuit 103a, a wireless transmitter 104a, an FM transmitter 105a, an FM receiver 106a, an adjustment circuit 107a, and a power source 108a.
  • the second electrode device 100b also includes an electrode 101b, a non-inverting amplifier circuit 102b, a quantization circuit 103b, a wireless transmitter 104b, an FM transmitter 105b, an FM receiver 106b, an adjustment circuit 107b, and a power source 108b.
  • the biological signal generation device 130 also includes a wireless receiver 131, an arithmetic circuit 132, and a memory 133. These configurations are similar to those of the first embodiment described above.
  • FM communication is performed using the human body as a communication channel.
  • the FM transmitter 105a converts the voltage signal output from the output terminal of the non-inverting amplifier circuit 102a into an FM signal, and transmits the converted FM signal to the second electrode device 100b using the human body as a channel through the transmitting electrode 109a'.
  • the FM receiver 106a converts the FM signal transmitted from the second electrode device 100b to the first electrode device 100a using the human body as a channel and received by the receiving electrode 110a' into a voltage signal and outputs the voltage signal.
  • the FM transmitter 105b converts the voltage signal output from the output terminal of the non-inverting amplifier circuit 102b into an FM signal, and sends the converted FM signal to the first electrode device 100a using the human body as a channel through a transmitting electrode 109b'. Send.
  • the FM receiver 106b converts the FM signal transmitted from the first electrode device 100a to the second electrode device 100b using the human body as a channel and received by the receiving electrode 110b' into a voltage signal and outputs the voltage signal.
  • performing FM communication through the human body reduces delay and power, and because the human body functions as a waveguide, it is possible to confine radio waves, making it resistant to external interference, and further reducing interference from the outside.
  • This has the advantage of reducing the risk of Even when transmitting a human body, the FM signal transmitted from the first electrode device 100a to the second electrode device 100b and the FM signal transmitted from the second electrode device 100b to the first electrode device 100a have different frequencies. shall be taken as a thing. Loss can be reduced by setting the frequency band used to be from several MHz to about 100 MHz in view of the electrical properties of the human body.
  • the first electrode device 100a' three electrodes are used: an electrode 101a, a transmitting electrode 109a', and a receiving electrode 110a', but since each has a different frequency, a bandpass filter is provided. It can be configured with two electrodes, reducing the number of parts that come into contact with the human body, which has the effect of improving user comfort.
  • Embodiment 3 Next, a biological signal measurement system according to Embodiment 3 of the present invention will be described with reference to FIG. 5.
  • This system includes two first electrode devices 100a'', a second electrode device 100b'', and a biosignal generating device 130.
  • the FM transmitter is configured from a voltage controlled oscillator (VCO 105a', VCO 105b'), and the FM receiver is configured from a phase locked circuit (PLL 106a', PLL 106b').
  • VCO 105a', VCO 105b' voltage controlled oscillator
  • PLL 106a', PLL 106b' phase locked circuit
  • an FM transmitter is constructed from a voltage controlled oscillator and the output frequency is directly modulated by voltage.
  • the FM receiver is constructed from a phase-locked circuit and uses a direct detection method.
  • the FM transmitter By configuring the FM transmitter from a voltage-controlled oscillator and the FM receiver from a phase-locked circuit. Although the delay can be reduced, when direct detection and direct modulation are used, the voltage ⁇ Matching frequency conversion characteristics is essential for communication with few errors.
  • the voltage controlled oscillator generally uses LC resonance using a variable capacitance diode called a varactor or oscillation using a ring oscillator. Due to manufacturing variations in these elements, the voltage-to-frequency conversion characteristics may not match between the voltage-controlled oscillator that makes up the FM transmitter and the voltage-controlled oscillator included in the phase-locked circuit that makes up the FM receiver.
  • Adjustment can be made by adding an offset to the operational amplifier included in the adjustment circuit so as to match the voltage-frequency characteristics.
  • the offset can be determined by the input voltage to the operational amplifier.
  • Adjustment can be made without increasing delay by adjusting the amplification conditions of the operational amplifier included in the adjustment circuit so that the voltage-frequency characteristics of the phase-locked circuit of the self-electrode device match those of the voltage-controlled oscillator. .
  • the resistance value of the operational amplifier variable the amplification conditions of the operational amplifier can be adjusted.
  • two electrode devices and a biological signal generation device are connected by wireless communication, and two electrode devices are connected by FM communication, so that two electrode devices and a biological signal generation device are connected by wireless communication. Even if the wiring between them is cut and the device is divided into two devices, biopotential can be easily measured.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Cardiology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physiology (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Psychiatry (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
PCT/JP2022/032932 2022-09-01 2022-09-01 生体信号計測システム Ceased WO2024047837A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US19/107,896 US20260096763A1 (en) 2022-09-01 2022-09-01 Biosignal measurement system
PCT/JP2022/032932 WO2024047837A1 (ja) 2022-09-01 2022-09-01 生体信号計測システム
JP2024543726A JP7841599B2 (ja) 2022-09-01 2022-09-01 生体信号計測システム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/032932 WO2024047837A1 (ja) 2022-09-01 2022-09-01 生体信号計測システム

Publications (1)

Publication Number Publication Date
WO2024047837A1 true WO2024047837A1 (ja) 2024-03-07

Family

ID=90099006

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/032932 Ceased WO2024047837A1 (ja) 2022-09-01 2022-09-01 生体信号計測システム

Country Status (3)

Country Link
US (1) US20260096763A1 (https=)
JP (1) JP7841599B2 (https=)
WO (1) WO2024047837A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170055862A1 (en) * 2015-08-24 2017-03-02 Korea Institute Of Science And Technology Apparatus and method for measuring electrocardiogram using wireless communication
JP2021074080A (ja) * 2019-11-06 2021-05-20 ソニーセミコンダクタソリューションズ株式会社 信号処理回路
US20210244337A1 (en) * 2019-05-08 2021-08-12 Boe Technology Group Co., Ltd. Electrocardiograph acquisition circuit, device, method and system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170055862A1 (en) * 2015-08-24 2017-03-02 Korea Institute Of Science And Technology Apparatus and method for measuring electrocardiogram using wireless communication
US20210244337A1 (en) * 2019-05-08 2021-08-12 Boe Technology Group Co., Ltd. Electrocardiograph acquisition circuit, device, method and system
JP2021074080A (ja) * 2019-11-06 2021-05-20 ソニーセミコンダクタソリューションズ株式会社 信号処理回路

Also Published As

Publication number Publication date
JP7841599B2 (ja) 2026-04-07
US20260096763A1 (en) 2026-04-09
JPWO2024047837A1 (https=) 2024-03-07

Similar Documents

Publication Publication Date Title
US9375153B2 (en) Motion/vibration sensor
TWI750889B (zh) 非接觸式血壓測量系統及其非接觸式血壓值計算之方法
Griggs et al. Design and development of continuous cuff-less blood pressure monitoring devices
TWI685205B (zh) 非接觸式自我注入鎖定生理信號感測器
Mahalakshmi et al. Healthcare Visible Light Communication
KR102206238B1 (ko) 생체신호를 검출하는 방법 및 장치
CN109116309A (zh) 一种利用射频开关简化双边带多普勒雷达的电路结构
JP7841599B2 (ja) 生体信号計測システム
TWI705795B (zh) 非接觸式相位鎖定暨自我注入鎖定生理信號感測器
JP7841600B2 (ja) 生体信号計測システム
WO2024089758A1 (ja) 生体信号計測システム
CN104055519B (zh) 动作/扰动检测器
Wang et al. An injection-locked detector for concurrent spectrum and vital sign sensing
US20260033765A1 (en) Biosignal measurement system
LU101014B1 (en) A double sideband doppler radar structure with phase shifter added at output of local oscillator
Ganguly et al. Sensitive transmit receive architecture for body wearable RF plethysmography sensor
JP7768369B2 (ja) 生体信号計測システム
TWI799095B (zh) 非接觸式生命徵象偵測器
Bassi et al. A 1.75–15 GHz stepped frequency receiver for breast cancer imaging in 65 nm CMOS
JPWO2024047837A5 (https=)
JPWO2024047838A5 (https=)
WO2024116262A1 (ja) 生体信号計測システム
WO2026053282A1 (ja) 生体信号計測システム
Han et al. 3.2 A Near-Field RF Reflection Transceiver ASIC for Continuous Unobtrusive Blood Pressure Monitoring
Gu et al. Microwave and millimeter-wave radars for vital sign monitoring

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22957432

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2024543726

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22957432

Country of ref document: EP

Kind code of ref document: A1