WO2009113624A1 - Dispositif de mesure d'informations biométriques, procédé de mesure d'informations biométriques et système de mesure d'informations biométriques - Google Patents

Dispositif de mesure d'informations biométriques, procédé de mesure d'informations biométriques et système de mesure d'informations biométriques Download PDF

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Publication number
WO2009113624A1
WO2009113624A1 PCT/JP2009/054787 JP2009054787W WO2009113624A1 WO 2009113624 A1 WO2009113624 A1 WO 2009113624A1 JP 2009054787 W JP2009054787 W JP 2009054787W WO 2009113624 A1 WO2009113624 A1 WO 2009113624A1
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WIPO (PCT)
Prior art keywords
biological information
unit
information data
measurement
data
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PCT/JP2009/054787
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English (en)
Japanese (ja)
Inventor
宜弘 西川
謙治 蛤
聡 横田
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コニカミノルタセンシング株式会社
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Publication of WO2009113624A1 publication Critical patent/WO2009113624A1/fr

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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
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6825—Hand
    • A61B5/6826—Finger
    • 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
    • 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
    • A61B5/683—Means for maintaining contact with the body
    • A61B5/6838—Clamps or clips

Definitions

  • the present invention relates to a biological information measuring device, a biological information measuring method, and a biological information measuring system for measuring biological information such as oxygen saturation and pulse rate of arterial blood.
  • a biological information measuring device for example, there is a pulse oximeter that is a device for measuring oxygen saturation and the like.
  • oxygen is the most important substance for maintaining life activity, and when the supply of oxygen is cut off, living tissue cells are seriously damaged. Therefore, the significance of monitoring the oxygen concentration of the living tissue is extremely great.
  • the pulse oximeter is attached to a predetermined living body part of a subject, outputs light toward the living body part, measures a change in the amount of light transmitted or reflected through the living body part as a signal, and obtains blood oxygen saturation and the like. Is.
  • the patient when a patient is transported by an ambulance, the patient is equipped with a pulse oximeter in the ambulance.
  • the ambulance crew notes the measured values by the pulse oximeter from time to time, and when they arrive at the hospital, the memo is handed over to the hospital, or the contents of the memo are spoken verbally, so that the patient's situation in the ambulance can be communicated to the hospital.
  • To communicate when a patient is transported by an ambulance, the patient is equipped with a pulse oximeter in the ambulance.
  • the ambulance crew notes the measured values by the pulse oximeter from time to time, and when they arrive at the hospital, the memo is handed over to the hospital, or the contents of the memo are spoken verbally, so that the patient's situation in the ambulance can be communicated to the hospital.
  • the pulse oximeter attached to the patient in the ambulance is generally removed, and another pulse oximeter is generally attached to the patient again.
  • the pulse oximeter is a type that stores past measurement data
  • past data in the ambulance can be read and analyzed by connecting to a personal computer or a dedicated monitor. Then, it is possible to obtain more accurate information than a memo or verbal explanation by an ambulance crew.
  • the determination of the treatment method necessary for the patient is required to be prompt, there is often no time for doing such a thing.
  • the pulse oximeter is contaminated with blood or the like, it is difficult to connect to a personal computer or a dedicated monitor. Further, as described above, there is a high possibility that different manufacturers of pulse oximeters are used in the ambulance and the hospital.
  • Patent Document 1 proposes a pulse oximeter having an interface that can be connected to a pulse oximeter of another manufacturer.
  • Patent Document 2 proposes a wireless medical analysis / monitoring apparatus having a bidirectional communication means. As described above, since the measurement data can be transmitted wirelessly, if the receiving device is installed on the hospital side, the data measured in the ambulance is transmitted to the receiving device installed in the hospital. Thereby, the hospital can know the patient's situation in the ambulance.
  • the present invention has been made in view of the above circumstances, and its purpose is a biological information measuring apparatus and biological information measuring method capable of confirming not only current biological information but also past biological information at any time without any special operation. And a biological information measurement system.
  • the biological information measuring device of the present invention transmits biological information data to the outside. Thereby, it can transmit to the biometric information receiver different from the said biometric information measuring apparatus.
  • FIG. 1 is a diagram showing an external configuration of a pulse oximeter according to Embodiment 1.
  • FIG. 1 is a block diagram illustrating a configuration of a measurement system according to Embodiment 1.
  • FIG. 3 is a flowchart showing an operation of the pulse oximeter according to the first embodiment.
  • 4 is a flowchart showing an operation of the biological information receiving apparatus according to the first embodiment.
  • FIG. 5 is a diagram illustrating an external configuration of a pulse oximeter according to a second embodiment.
  • 6 is a block diagram showing a configuration of a pulse oximeter according to Embodiment 2.
  • FIG. 6 is a flowchart showing the operation of the pulse oximeter according to the second embodiment.
  • a pulse oximeter which is an example of a biological information measuring device
  • a biological information measuring device other than a pulse oximeter may be used.
  • Embodiment 1 A pulse oximeter system (hereinafter referred to as a measurement system) according to Embodiment 1 of the present invention will be described.
  • the measurement system according to Embodiment 1 includes a pulse oximeter and a biological information receiving device that can communicate with the pulse oximeter.
  • the pulse oximeter stores biological information data calculated by measurement in a storage unit, and transmits the measured current biological information data and past biological information data stored in the storage unit to the biological information receiving device. To do. Accordingly, the current biological information data and past biological information data can be displayed in the biological information receiving apparatus. Therefore, it is possible to confirm not only the current biological information data but also the past biological information data without any special operation by the operator.
  • FIG. 1 is a diagram showing an external configuration of the pulse oximeter according to the first embodiment.
  • FIG. 2 is a block diagram showing the configuration of the measurement system according to the first embodiment.
  • the pulse oximeter 100 is configured to include a device main body 1 and a measurement unit 2 electrically connected to the device main body 1 by a cable 16.
  • the pulse oximeter 100 is used by being attached to the hand 300 of the subject.
  • the apparatus main body 1 has a mounting belt 17.
  • the apparatus main body 1 is fixed to the subject's wrist by, for example, winding the mounting belt 17 around the wrist of the subject.
  • the apparatus body 1 further includes a display unit 7 and an operation unit 9.
  • the display unit 7 is for displaying biological information data such as measurement results, that is, blood oxygen saturation (SpO 2 value).
  • the operation unit 9 is, for example, a switch circuit or the like, and is used to instruct to read out the measurement result and instruct to start or end the measurement.
  • the measuring unit 2 is attached to the fingertip of the subject, for example. Specifically, it has a shape like a finger sack and is worn by being fitted to the fingertip of the subject. Although not shown in FIG. 1, measurement is performed by the light emitting unit 21 and the light receiving unit 22 installed inside the measuring unit 2 (see FIG. 2).
  • the measurement system S measures biological information such as blood oxygen saturation of a subject and transmits the result as biological information data, and is transmitted from the pulse oximeter 100.
  • a biological information receiving device 10 for receiving the biological information data. It is preferable that the pulse oximeter 100 and the biological information receiving device 10 are connected so as to be able to communicate with each other by radio, because the pulse oximeter 100 and the biological information receiving device 10 can be installed at positions separated from each other, but wired. It does not matter if it is connected with.
  • the pulse oximeter 100 includes an apparatus main body 1 and a measurement unit 2.
  • the measuring unit 2 includes a light emitting unit 21 and a light receiving unit 22, and in a state where a measurement site (for example, a fingertip) is fitted in the measuring unit 2, that is, in a measurement state, the light emitting unit 21 and the light receiving unit 22 are interposed between the fingertips. It is arranged so as to face each other. Thereby, biological information can be measured based on the transmitted light of the measurement site. In addition, biological information can also be measured based on the reflected light of the measurement site, and in this case, the light emitting unit 21 and the light receiving unit 22 are arranged adjacent to each other.
  • the light emitting unit 21 is a light source including, for example, a light emitting diode that emits red light having a wavelength in the red region and a light emitting diode that emits infrared light having a wavelength in the infrared region.
  • a light emitting diode that emits red light having a wavelength in the red region
  • a light emitting diode that emits infrared light having a wavelength in the infrared region.
  • the amount of irradiation light can be adjusted within a certain range during measurement. It is preferable to do.
  • the light receiving unit 22 includes a photoelectric conversion element such as a silicon photodiode that generates a current having a magnitude corresponding to the intensity of the received light.
  • the light receiving unit 22 receives light from the light emitting unit 21 that has passed through the fingertip of the subject as the measurement site. Therefore, this photoelectric conversion element has sensitivity to red light and infrared light emitted from the light emitting unit 21.
  • the apparatus body 1 includes a control unit 4, a storage unit 5, a communication unit 6, a display unit 7, a power supply unit 8, an operation unit 9, an I / V conversion unit 31, and an A / D conversion unit 32. It has.
  • the storage unit 5 includes a ROM (Read Only Memory) that stores a control program of the pulse oximeter 100, an EEPROM (Electrically Erasable Programmable ROM) that temporarily stores data such as arithmetic processing and control processing, and a RAM (Random Access). Memory), a non-volatile memory such as a flash memory, and the like, and the analyzed biological information data is stored in association with the timing information.
  • ROM Read Only Memory
  • EEPROM Electrical Erasable Programmable ROM
  • RAM Random Access
  • the communication unit 6 is used for wirelessly communicating the data measured by the pulse oximeter 100 and the data stored in the storage unit 5 to the biological information receiving apparatus 10.
  • the communication unit 6 includes an antenna and the like. Performs data modulation or demodulation.
  • the communication unit 6 includes an interface device for cable connection.
  • the communication part 6 can receive the transmission instruction
  • the display unit 7 includes a display device such as an LCD (Liquid Crystal Display), a 7-segment LED (Light Emitting Diode), an organic electroluminescence display device, or a CRT (Cathode-Ray Tube) display device.
  • the display unit 7 displays biological information data such as blood oxygen saturation calculated from measured biological information, information indicating that measurement is being performed, and the like.
  • the display unit 7 may display lighting, blinking, characters, numbers, symbols, pictorial symbols, characters, and the like.
  • the power supply unit 8 supplies power to the pulse oximeter 100, that is, the measurement unit 2 and the apparatus main body 1. Since it is necessary to transport a patient wearing the pulse oximeter 100, it is desirable to eliminate the need for a power supply cable. Therefore, the power supply unit 8 may include a button battery, a secondary battery, or the like. The power supply unit 8 may be a predetermined power supply circuit, and power may be supplied from the outside.
  • the operation unit 9 is configured with switches and buttons for operating the pulse oximeter 100.
  • the operation unit 9 includes a switch for turning on / off the power, a switch for instructing measurement start or various operations, and the like.
  • the various operations include, for example, an operation for requesting transmission for transmitting past biological information data by the communication unit 6, and an operation for instructing display of the minimum value, maximum value, or mode value of past biological information data. Etc.
  • the I / V conversion unit 31 converts a current signal output from the light receiving unit 22 into a voltage signal at a predetermined cycle, and outputs the voltage signal to the A / D conversion unit 32 as a photoelectric pulse wave signal.
  • the A / D conversion unit 32 ⁇ ⁇ converts the analog photoelectric pulse wave signal output from the I / V conversion unit 31 into a digital photoelectric pulse wave signal and outputs the digital photoelectric pulse wave signal to the control unit 4. It is.
  • the control unit 4 includes various electronic components, integrated circuit components, a CPU (Central Processing Unit), and the like, and controls the operation of each unit of the pulse oximeter 100. Functionally, the measurement control unit 41, the recording control unit 42, A display control unit 43, an analysis processing unit 44, and a communication control unit 45 are provided.
  • a CPU Central Processing Unit
  • the measurement control unit 41 controls the measurement operation of biological information by the measurement unit 2 according to a predetermined measurement program. Specifically, red light and infrared light are alternately emitted from the light emitting unit 21 at each sampling period, and a photoelectric conversion signal is acquired from the light receiving unit 22 in synchronization with the light emission timing.
  • the recording control unit 42 controls a recording operation such as recording or deletion of biometric information data in the storage unit 5.
  • the recording control unit 42 when storing the biological information data obtained by analyzing the biological information measured by the measuring unit 2 in the storage unit 5, the measurement time output by the timer function or the like provided in the CPU To be recorded in association with the timing information.
  • the recording control unit 42 may perform a process of reducing the number of pieces of data after the biometric information data stored in the storage unit 5 is read after a predetermined time has elapsed or according to a predetermined rule.
  • processing for reducing the number of data in this way is hereinafter referred to as thinning processing.
  • the average value or the moving average value of the data may be obtained and only those may be re-recorded, or only the minimum value, maximum value, or mode value of the data may be re-recorded. That is, only a part of the measured biological information data may be stored. Thereby, the memory capacity of the memory
  • storage part 5 can be reduced and the pulse oximeter 100 can be reduced in size and cost.
  • the recording control unit 42 determines the singular values such as the minimum value, the maximum value, and the mode value of the biological information data, and records them so as to be easily read out.
  • the biometric information data having the minimum value or the maximum value is stored at a specific address in the storage unit 5, and when biometric information data is recorded, it is smaller or larger than the biometric information data stored at the specific address. In this case, the biometric information data stored at a specific address is replaced. Thereby, the minimum value or the maximum value is stored in the specific address.
  • the mode value is obtained by reading all past biological information data stored in the storage unit 5 by the analysis processing unit 44 and performing statistical processing. Or you may judge when the recording control part 42 records biometric information data in the memory
  • the recording control unit 42 determines where the measurement data belongs in a range divided at equal intervals, and counts the frequency of the measurement data for each range. By storing the count value for each data range at the corresponding address, the biometric information data which is the mode value can be determined.
  • biometric information data below a certain threshold value or above a threshold value may be stored at a specific address. Thereby, by reading out such biological information data, it is possible to determine how often the subject is in a dangerous state.
  • the display control unit 43 causes the display unit 7 to display the biological information data calculated by analyzing the display representing the state under measurement or the measured biological information by the analysis processing unit 44 in a predetermined display form. Control etc. For example, current biological information data and past biological information data are alternately displayed.
  • the analysis processing unit 44 performs predetermined data analysis based on the biological information measured by the measuring unit 2 and calculates biological information data such as blood oxygen saturation. Specifically, the blood oxygen saturation of the subject is calculated based on the amount of light received by the light receiving unit 22. Oxygen is transported by the oxidation and reduction of hemoglobin in the blood. When this hemoglobin is oxidized, the absorption of red light decreases and the absorption of infrared light increases. Conversely, when it is reduced, the absorption of red light increases and the absorption of infrared light decreases. It has characteristics. Using this characteristic, the analysis processing unit 44 measures fluctuations in the amount of transmitted light of the red light and infrared light received by the light receiving unit 22, and calculates the ratio thereof to calculate the blood oxygen saturation.
  • the moving average value in the predetermined range in the calculated blood oxygen saturation is displayed on the display unit 7 by the display control unit 43.
  • the analysis processing unit 44 can also calculate the pulse rate of the subject based on the photoelectric pulse wave waveform obtained by the light receiving unit 22, and the display control unit 43 displays the pulse rate together with the blood oxygen saturation. 7 may be displayed.
  • the communication control unit 45 controls the communication unit 6 to control the transmission operation of the biological information data to the biological information receiving device 10 or the receiving operation such as the operation instruction from the biological information receiving device 10. Furthermore, when transmitting biometric information data, for example, thinning processing of biometric information data is also controlled. The amount of transmission data can be reduced by thinning out the data to be transmitted. Thereby, the communication time can be shortened. In addition, the storage capacity of the biological reception device can be reduced, and the size and cost can be reduced.
  • the biological information receiving apparatus 10 includes a control unit 11, a communication unit 12, a display unit 13, a storage unit 14, and an operation unit 15.
  • the communication unit 12 receives a wireless signal or a wired signal based on the current biological information data and the past biological information data transmitted from the pulse oximeter 100, and the past information from the biological information receiving apparatus 10 to the pulse oximeter 100.
  • a biological information transmission instruction signal and other instruction signals are transmitted.
  • the communication unit 12 specifically includes an antenna or the like. If data communication between the pulse oximeter 100 and the biological information receiving device 10 is performed by wire, the communication unit 12 includes an interface device for cable connection.
  • the communication unit 12 demodulates the received biological information data and modulates the instruction signal to the pulse oximeter 100.
  • the display unit 13 includes a display device such as an LCD, a 7-segment LED, an organic electroluminescence display device, or a CRT display device.
  • the display unit 13 displays biological information data transmitted from the pulse oximeter 100, such as blood oxygen saturation calculated from the measured biological information, information indicating that measurement is being performed, and the like. Further, what the displayed data represents may be displayed at the same time. Note that the display of the biological information data may be performed, for example, every second.
  • the storage unit 14 includes a ROM that stores a control program and the like of the biological information receiving apparatus 10, an EEPROM that temporarily stores control processing data, a nonvolatile memory such as a RAM and a flash memory, and the like. Biological information data including the transmitted time information is stored.
  • the operation unit 15 includes switches and buttons for operating the biological information receiving apparatus 10. Specifically, the operation unit 15 includes a switch for turning on / off the power, a switch for instructing the pulse oximeter 100 to transmit past biological information, and the like.
  • the control unit 11 controls the operation of each component mounted on the biological information receiving apparatus 10, and includes various electronic components, an integrated circuit component, a CPU, and the like.
  • FIG. 3 is a flowchart showing the operation of the pulse oximeter according to the first embodiment.
  • FIG. 4 is a flowchart showing the operation of the biological information receiving apparatus according to the first embodiment.
  • the pulse oximeter 100 is attached to the subject's hand 300, and the operation unit 9 is operated to start measurement.
  • the control unit 4 starts measuring time (S101), and operates the measurement unit 2 to start measuring biological information (S102).
  • the measurement control unit 41 controls the light emitting unit 21, the light receiving unit 22, the I / V conversion unit 31, and the A / D conversion unit 32 to measure biological information.
  • the measurement control unit 41 causes the light emitting unit 21 to emit light and obtains a photoelectric conversion signal from the light receiving unit 22 in synchronization with the light emission timing.
  • the photoelectric conversion signal acquired by the light receiving unit 22 is a current signal, is converted into a voltage signal by the I / V conversion unit 31, and is output to the A / D conversion unit 32 as a photoelectric pulse wave signal.
  • the measurement control unit 41 causes the A / D conversion unit 32 to convert the photoelectric pulse wave signal from analog to digital.
  • the analysis processing unit 44 performs a predetermined analysis based on the digital photoelectric pulse wave signal output from the A / D conversion unit 32, and calculates blood oxygen saturation, pulse rate, and the like.
  • the display control unit 43 causes the display unit 7 to display current biological information data such as blood oxygen saturation and pulse calculated by the analysis processing unit 44.
  • the communication control unit 45 causes the communication unit 6 to modulate the current biological information data such as the blood oxygen saturation and the pulse rate calculated by the analysis processing unit 44 into a radio signal and transmit it (S103). .
  • the recording control unit 42 records the current biological information data in the storage unit 5 together with the time information (S104).
  • the control unit 4 determines whether or not the time T from the start of measurement is shorter than 1 minute (S105). If the time T from the start of measurement is shorter than 1 minute, the control unit 4 confirms whether or not the measurement is finished (S109), and when the operation end is instructed by the operation unit 9 Terminates the measurement and returns to step S101 if no instruction to terminate the measurement is given. Then, measurement is again performed by the measurement control unit 41 (S102), and the measured biological information data is displayed on the display unit 7, transmitted to the biological information receiving device 10 (S103), and recorded in the storage unit 5 (S104). . These processes are repeated until the time T becomes 1 minute or longer.
  • the display control unit 43 and the communication control unit 45 read past biometric information data from the current time to 10 minutes before from the storage unit 5 (S106).
  • the display control unit 43 displays the read past biometric information data on the display unit 7, and the communication control unit 45 causes the communication unit 6 to transmit the read past biometric information data (S107).
  • the past biometric information data to be read may be all data stored in the storage unit 5, or may be data after the thinning process is performed. For example, it is good also as those average values or moving average values, and it is good also as only the minimum value, the maximum value, or mode value in them.
  • the biometric information data displayed in step S107 may be the data read in step S106. When there are a plurality of read data, the read data may be displayed sequentially. Further, the data to be transmitted in step S107 may be displayed data or data obtained by further thinning the displayed data.
  • control unit 4 resets the time T to 0 (S108), confirms whether or not the measurement is completed (S109), and terminates the measurement when the operation unit 9 instructs to terminate the measurement. If the measurement end instruction has not been given, the process returns to step S101.
  • a reception operation is started by operating the operation unit 15.
  • the control unit 11 starts a reception operation.
  • the communication unit 12 starts receiving the biological information data transmitted from the pulse oximeter 100, and demodulates the received radio signal when received. From the demodulated received signal, the control unit 11 determines whether the received signal is current biological information data (S201).
  • the control unit 11 displays the current biological information data on the display unit 13, and the current biological information data on the storage unit 14. (S202). If the received biometric information data is not current biometric information data, the control unit 11 determines whether the biometric information data is past (S203). Further, even after step S202, the control unit 11 determines whether the data is past biological information data (S203).
  • step S203 when the received biological information data is past biological information data transmitted from the pulse oximeter 100, the control unit 11 records it in the storage unit 14 separately from the current biological information. (S204). If the received biometric information data is not past biometric information data, the control unit 11 determines whether a read instruction has been issued (S205). Further, after step S204, the control unit 11 determines whether or not a read instruction is given (S205).
  • step S205 if a read instruction is made by operating the operation unit 15, the control unit 11 reads the past biometric information for which the read instruction has been given from the storage unit 14 and displays it on the display unit 13 ( S206). If no read instruction is given, the control unit 11 confirms whether or not the measurement is finished (S207). Further, even after step S206, the control unit 11 confirms whether or not the measurement is finished (S207), and if the measurement end is instructed by the operation of the operation unit 15, the measurement is finished. If the measurement end instruction has not been given, the process returns to step S201, and the control unit 11 determines whether or not the communication unit 12 has received the current biological information.
  • Embodiment 2 A measurement system according to Embodiment 2 of the present invention will be described. In the following description, description of the same configuration as the measurement system according to Embodiment 1 is omitted. Moreover, the same code
  • the pulse oximeter according to the second embodiment is intended to be disposable or reusable, it is particularly configured to realize cost reduction.
  • the pulse oximeter may be contaminated with blood or the like. Therefore, it is not preferable to use the pulse oximeter once used for others, and it is preferable to be able to reuse it by exchanging a part (such as a cover) that is disposable or in contact with the human body.
  • FIG. 5 shows an external configuration of a pulse oximeter according to Embodiment 2
  • FIG. 6 is a block diagram showing a configuration of the pulse oximeter.
  • the pulse oximeter 200 is not a configuration in which the apparatus main body 1 and the measurement unit 2 are separated as in the pulse oximeter 100 according to the first embodiment, but is integrally configured and reduced in size. Has been.
  • the pulse oximeter 200 includes a flexible substrate 29 and an exterior member 26 disposed so as to cover one surface of the flexible substrate 29, and has flexibility.
  • the exterior member 26 functions to protect the flexible substrate 29 from external force.
  • the exterior member 26 may be configured to cover the entire flexible substrate 29 as necessary, and may be configured with a waterproof member or a light-blocking member. Thereby, the flexible substrate 29 can be waterproofed or shielded from light.
  • the exterior member 26 has a first strip 27 and a second strip 28 for wrapping around the subject's finger.
  • the flexible substrate 29 is a flexible substrate in which a copper or copper alloy conductor pattern is formed on a plastic film such as polyimide or polyester.
  • Various electronic components including the light emitting unit 21 and the light receiving unit 22 are mounted on the flexible substrate 29.
  • the control unit 4, the storage unit 5, the communication unit 6, the power supply unit 8, the I / V conversion unit 31, and the A / D conversion unit 32 shown in FIG. 6 are mounted on the flexible substrate 29, the control unit 4, the storage unit 5, the communication unit 6, the power supply unit 8, the I / V conversion unit 31, and the A / D conversion unit 32 shown in FIG. 6 are mounted.
  • the light emission part 21 and the light-receiving part 22 were installed on the 1st strip
  • the pulse oximeter 200 according to the second embodiment shown in FIG. 5 is different from the pulse oximeter 100 according to the first embodiment shown in FIG. 2 in that it includes a display unit 7, an operation unit 9, and a display control unit 43. That is not the point. With this configuration, the pulse oximeter 200 can be reduced in size and cost. Thereby, the pulse oximeter 200 is suitable for use as a disposable pulse oximeter.
  • the pulse oximeter 200 does not have an operation unit, for example, a configuration in which energization and measurement are started when a part of the subject's body interferes with the battery when the pulse oximeter 200 is mounted, or on the flexible substrate 29 What is necessary is just to set it as the structure where electricity supply and a measurement are started by the short circuit of a circuit, or the removal of the insulating sheet pinched
  • the pulse oximeter 200 is worn by winding the first band 27 and the second band 28 around the finger of the hand 300 of the subject.
  • an adhesive or the like is applied to each end portion of the first belt-like body 27 and the second belt-like body 28, and the end portions in the wound state are the first belt-like body 27 and the second belt-like body 27, respectively. It is fixed to a part of the belt-like body 28.
  • the biological information receiving device 10 As the biological information receiving device of the measurement system according to the second embodiment, the biological information receiving device 10 according to the first embodiment may be used.
  • the communication unit 6 of the pulse oximeter 200 can perform only a transmission operation, and can focus on the function of transmitting biological information data from the pulse oximeter 200, thereby reducing the size and cost of the pulse oximeter 200.
  • FIG. 7 is a flowchart showing the operation of the pulse oximeter according to the second embodiment.
  • the pulse oximeter 200 according to Embodiment 2 since the pulse oximeter 200 according to Embodiment 2 is premised on disposable use, it is desirable to reduce the storage capacity of the storage unit 5 as much as possible for the purpose of cost reduction. Therefore, in the pulse oximeter 200, a part of the measured biological information data is stored in the storage unit 5, and the stored biological information is thinned to reduce the number of data. Thus, the capacity of the storage unit 5 is reduced.
  • the pulse oximeter 200 is worn on the finger of the subject's hand 300.
  • measurement is started by mounting the pulse oximeter 200.
  • the control unit 4 starts measuring time (S301), operates the measurement unit 2 and starts measuring biological information (S302).
  • the measurement control unit 41 controls the light emitting unit 21, the light receiving unit 22, the I / V conversion unit 31, and the A / D conversion unit 32 to measure biological information.
  • the measurement control unit 41 causes the light emitting unit 21 to emit light and obtains a photoelectric conversion signal from the light receiving unit 22 in synchronization with the light emission timing.
  • the photoelectric conversion signal acquired by the light receiving unit 22 is a current signal, is converted into a voltage signal by the I / V conversion unit 31, and is output to the A / D conversion unit 32 as a photoelectric pulse wave signal.
  • the measurement control unit 41 causes the A / D conversion unit 32 to convert the photoelectric pulse wave signal from analog to digital.
  • the analysis processing unit 44 performs a predetermined analysis based on the digital photoelectric pulse wave signal output from the A / D conversion unit 32, and calculates blood oxygen saturation, pulse, and the like.
  • the communication control unit 45 causes the communication unit 6 to modulate and transmit the current biological information data such as blood oxygen saturation and pulse calculated by the analysis processing unit 44 to a wireless signal (S303).
  • the control unit 4 determines whether the time T from the start of measurement is (10 ⁇ n) seconds (where n is 0 or a positive integer) (S304). If the time T is not (10 ⁇ n) seconds, the control unit 4 confirms whether or not the measurement is finished (S312). If an instruction to finish the measurement is given, the measurement is finished and the measurement is finished. If no instruction is given, the process returns to step S302. When returning to step S302, measurement is performed by the measurement control unit 41 (S302), and the measured biological information data is transmitted to the biological information receiving apparatus 10 (S303). These processes are repeated until the time T reaches (10 ⁇ n) seconds.
  • step S304 the recording control unit 42 records the biological information data together with the time measurement information in the storage unit 5 (S305). Then, the control unit 4 determines whether the time T from the start of measurement is (10 ⁇ m) (where the initial value of m is 1) (S306). Here, if the time T is not (10 ⁇ m) minutes, it is confirmed whether or not the measurement is finished (S312). If the measurement end instruction is given, the measurement is finished and the measurement end instruction is given. If not, the process returns to step S302.
  • step S306 the recording control unit 42 is measured from 10 minutes before the time T to the time T, and the biological information data stored in the storage unit 5 And the data amount is reduced to, for example, 1/10 (thinning-out process) and recorded in the storage unit 5 again.
  • the communication control unit 45 causes the communication unit 6 to transmit the thinned data regarding the past biological information data stored in the storage unit 5 again (S307).
  • the control unit 4 determines whether m is 2 or more (S308). If m is not 2 or more, the recording control unit 42 determines the original data of the data re-recorded in step S307, that is, the time T.
  • the biometric information data measured from 10 minutes before the time T and stored in the storage unit 5 is deleted from the storage unit 5 (S310).
  • step S308 the biological information data measured from 20 minutes before time T to 10 minutes before time T and stored in the storage unit 5 is read, and the amount of data is calculated. For example, it is reduced to 1/10 (thinning process) and recorded in the storage unit 5 again.
  • the communication control unit 45 causes the communication unit 6 to transmit the data after the thinning-out process related to the past biological information data stored in the storage unit 5 again (S309). Note that the biological information data measured from 20 minutes before the time T to 10 minutes before the time T and stored in the storage unit 5 is reduced to 1/10 in step S307 10 minutes before. Recorded data.
  • step S309 the biometric information data recorded in step 305 after the measurement is reduced to 1/100 and re-recorded and transmitted. Then, the recording control unit 42 measures the original data of the data re-recorded in step S309, that is, measured from 20 minutes before the time T to 10 minutes before the time T, and records in the storage unit 5 after the thinning process. The biometric information data that has been deleted is deleted from the storage unit 5 (S310).
  • step S310 1 is added to m, and it is confirmed whether or not the measurement is completed (S312). At this time, if an instruction to end the measurement is given, the measurement control unit 41 ends the measurement. If no instruction to end the measurement is given, the process returns to step S302.
  • the biological information data is recorded in the storage unit 5 every 10 seconds, but this time is not limited to 10 seconds. Further, the rate at which the biometric information data is reduced is not limited to 1/10 as described above, and the time for reduction is not limited to 10 minutes before and 10 to 20 minutes before as described above. Moreover, when communicating biometric information data, it is good also as communicating after carrying out a thinning-out process.
  • the average value or moving average value within a predetermined period may be used instead of the measured value itself, and only the minimum value, maximum value, or mode value may be recorded. Alternatively, only a certain time value may be recorded.
  • the biological information data may be recorded only when the measured value changes greatly.
  • the blood oxygen saturation may be recorded in the storage unit 5 in association with the timing information only when the blood oxygen saturation has changed by 1% or more compared to the previously measured value.
  • the pulse oximeter 200 according to the second embodiment may perform the same operation (see FIG. 3) as the pulse oximeter 100 according to the first embodiment.
  • the pulse oximeter 200 according to Embodiment 2 does not have a display unit and a display control unit, only the transmission of biological information data is performed in Step S103 and Step S107 in FIG.
  • the same operation as that of the pulse oximeter 100 according to Embodiment 1 may be performed.
  • the operation shown in FIG. 7 can also be performed.
  • the biological information receiving apparatus when the biological information receiving apparatus is installed on the hospital side and the patient in the ambulance is equipped with the pulse oximeter, the patient is in either the ambulance or the hospital. Even so, the biological information data can be observed by the biological information receiving apparatus. Thereby, the hospital side can grasp
  • the biological information measuring device has been described using a pulse oximeter capable of measuring blood oxygen saturation and pulse rate.
  • other biological information is also described.
  • a biological information measuring device capable of measuring them can be realized. Examples of other biological information include electrocardiogram, blood pressure, body temperature, arterial blood biological information, heart rate, number of steps, exercise intensity, and the like.
  • a biological information measuring device includes a measuring unit that measures biological information, an analysis processing unit that analyzes biological information measured by the measuring unit, and biological information calculated by the analyzing process
  • a storage unit that stores data
  • a communication unit that transmits the biological information data stored in the storage unit to the outside during measurement of the biological information by the measurement unit.
  • the communication unit transmits the current biological information data calculated by the analysis processing unit and past biological information data stored in the storage unit to the outside.
  • the measured current biological information data and the stored past biological information data can be confirmed by the biological information receiving apparatus without any special operation.
  • the communication unit transmits the past biological information data to the outside in response to a transmission request.
  • the communication unit receives an external transmission request.
  • the biological information measuring apparatus can receive a transmission request from the outside, and bidirectional communication is possible.
  • the above-described biological information measuring device further includes a recording control unit that controls a recording operation of the storage unit, and the recording control unit displays time measurement information when the measuring unit measures the biological information. It is preferable to store in the storage unit in association with information data.
  • the recording control unit determines whether the stored biological information data is a singular value when storing the biological information data in the storage unit.
  • the singular value can be stored at a specific address in the storage unit, and the singular value can be easily read out.
  • Singular values include a maximum value, a minimum value, a mode value, and the like.
  • the recording control unit stores only a part of the biological information data calculated by the analysis processing in the storage unit.
  • the recording control unit reduces past biological information data stored in the storage unit.
  • the storage capacity of the storage unit can be reduced, and the biological information measuring device can be reduced in size and cost.
  • the communication unit transmits the past biological information data after reducing the past biological information data when transmitting the past biological information data to the outside.
  • the storage capacity of the biological information receiving apparatus that receives the biological information data can be reduced. Therefore, the biological information receiving apparatus can be reduced in size and cost.
  • a method for measuring biological information measuring biological information, analyzing the biological information to calculate biological information data, and storing the calculated biological information data. And a step of transmitting the current biological information data calculated by the analysis process and the stored past biological information data to the outside.
  • the stored past biological information data can be transmitted to a biological information receiving device different from the biological information measuring device while measuring the biological information. Therefore, during the measurement of the biological information, the biological information data measured in the past can be confirmed by the biological information receiving device.
  • a biological information measuring system includes the above-described biological information measuring device and a biological information receiving device that can communicate with the biological information measuring device, and the biological information receiving device.
  • a biometric information receiving device communication unit that receives current biometric information data and past biometric information data from the biometric information measuring device, and biometric information reception that displays the received current biometric data and past biometric information data
  • a device display unit that displays the received current biometric data and past biometric information data
  • the biological information data measured and analyzed by the biological information measuring device can be displayed by the biological information receiving device which is an external device different from the biological information measuring device. Therefore, the biological information data can be confirmed at a location away from the installation location of the biological information measuring device.
  • a biological information measuring device a biological information measuring method, and a biological information measuring system can be provided.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention porte sur un dispositif de mesure d'informations biométriques qui comprend : une unité de mesure qui mesure des informations biométriques ; une unité de procédé d'analyse qui analyse les informations biométriques mesurées par l'unité de mesure ; une unité de stockage qui stocke les données d'informations biométriques calculées par le procédé d'analyse, et une unité de communication qui transmet des données d'informations biométriques à l'extérieur de l'unité de stockage pendant la mesure des informations biométriques par l'unité de mesure.
PCT/JP2009/054787 2008-03-13 2009-03-12 Dispositif de mesure d'informations biométriques, procédé de mesure d'informations biométriques et système de mesure d'informations biométriques WO2009113624A1 (fr)

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JP2008064298 2008-03-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014024626A1 (fr) * 2012-08-09 2014-02-13 コニカミノルタ株式会社 Dispositif de mesure d'informations biologiques et oxymètre de pouls

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002102247A1 (fr) * 2001-06-14 2002-12-27 Dainippon Pharmaceutical Co., Ltd. Systeme de transmission / reception de signaux relatifs a un organisme et procede associe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002102247A1 (fr) * 2001-06-14 2002-12-27 Dainippon Pharmaceutical Co., Ltd. Systeme de transmission / reception de signaux relatifs a un organisme et procede associe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014024626A1 (fr) * 2012-08-09 2014-02-13 コニカミノルタ株式会社 Dispositif de mesure d'informations biologiques et oxymètre de pouls
JPWO2014024626A1 (ja) * 2012-08-09 2016-07-25 コニカミノルタ株式会社 生体情報測定装置、およびパルスオキシメータ
US9642567B2 (en) 2012-08-09 2017-05-09 Konica Minolta, Inc. Biological information measurement device and pulse oximeter

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