[go: up one dir, main page]

WO2016047145A1 - Dispositif de mesure, procédé de mesure et appareil électronique pourvu du dispositif de mesure - Google Patents

Dispositif de mesure, procédé de mesure et appareil électronique pourvu du dispositif de mesure Download PDF

Info

Publication number
WO2016047145A1
WO2016047145A1 PCT/JP2015/004873 JP2015004873W WO2016047145A1 WO 2016047145 A1 WO2016047145 A1 WO 2016047145A1 JP 2015004873 W JP2015004873 W JP 2015004873W WO 2016047145 A1 WO2016047145 A1 WO 2016047145A1
Authority
WO
WIPO (PCT)
Prior art keywords
flow rate
measurement
unit
contact
pressure
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/JP2015/004873
Other languages
English (en)
Japanese (ja)
Inventor
直久 松本
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.)
Kyocera Corp
Original Assignee
Kyocera 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 Kyocera Corp filed Critical Kyocera Corp
Publication of WO2016047145A1 publication Critical patent/WO2016047145A1/fr
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
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/026—Measuring blood flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/026—Measuring blood flow
    • A61B5/0285—Measuring or recording phase velocity of blood waves

Definitions

  • the present invention relates to a measuring device, a measuring method, and an electronic device including the measuring device.
  • a measuring device that acquires biological output information from a test site such as a fingertip of a subject (user) and measures the biological information is known.
  • a blood flow measuring device that measures blood flow as biological information irradiates a fingertip with a laser beam and measures blood flow based on scattered light from blood flow of capillaries at the fingertip (see, for example, Patent Document 1). ).
  • the state of the capillary at the fingertip changes depending on the contact state with the measuring device. That is, when the pressure applied from the fingertip to the measuring device is stronger or weaker than the appropriate range, the blood flow cannot be measured accurately. Therefore, in order to accurately measure the biological information, it is necessary to appropriately bring the test site into contact with the measurement device. For this reason, conventionally, means for stabilizing the contact state are used, such as using a fixing mechanism for fixing the test site or fixing the contact state between the fingertip and the measuring device by taping or the like.
  • the flow rate of the fluid is measured by the pressing force at the time of contact in the configuration in which the measurement site is brought into contact with the measurement device. Can change.
  • a blood flow rate is measured by a principle such as a so-called laser Doppler flowmetry (LDF) method using a biological sensor such as a laser blood flow meter, depending on the flow rate, May not match.
  • LDF laser Doppler flowmetry
  • An object of the present invention made in view of such circumstances is to provide a measuring apparatus, a measuring method, and an electronic apparatus including the measuring apparatus that can improve the measurement accuracy of biological information.
  • a measuring apparatus provides: A measuring device for measuring biological information by bringing a test site into contact with a contact part, A measurement unit (biological sensor) for obtaining a biometric output from the test site; A pressure detection unit for detecting a contact pressure of the test site in the contact unit; A control unit that calculates a flow rate of a predetermined fluid (for example, blood) based on the biometric output obtained by the measurement unit, and When it is determined that an error between the calculated flow rate and the actual flow rate of the fluid is equal to or greater than a predetermined value, the control unit performs control that induces a change in the contact pressure.
  • a predetermined fluid for example, blood
  • control unit may determine that the error is equal to or greater than a predetermined value when the calculated flow rate and the actual flow rate of the fluid do not change linearly.
  • a notification unit for notifying information on the contact pressure may perform control such that the notification unit notifies information on the contact pressure as control for inducing a change in the contact pressure.
  • the contact portion includes a pressure adjustment unit that adjusts a contact pressure of the test site detected by the pressure detection unit,
  • the control unit may perform control such that the pressure adjusting unit adjusts the contact pressure of the test site as control for guiding the change in the contact pressure.
  • the controller determines whether or not the error is equal to or greater than a predetermined value, when the flow rate of the fluid is in a predetermined offset range, the error is equal to or greater than the predetermined value even if the error is less than the predetermined value. It may be determined that
  • control unit may correct the calculated flow rate of the fluid according to the contact pressure of the test site.
  • the present invention can also be realized as an electronic device including the above-described measuring device.
  • the present invention can be realized as a measuring method using the above-described measuring apparatus, and these are also included in the scope of the present invention.
  • the measuring method is: A measurement method for measuring biological information by bringing a test site into contact with a contact part, A measurement step of obtaining a biometric output from the test site; A pressure detection step of detecting a contact pressure of the test site in the contact portion; A calculation step for calculating a flow rate of a predetermined fluid (for example, blood) based on the biometric output obtained in the measurement step; A control step for performing a control for inducing a change in the contact pressure when an error between the flow rate calculated in the calculation step and the actual flow rate of the fluid exceeds a predetermined value; including.
  • the present invention it is possible to provide a measuring device, a measuring method, and an electronic device including the measuring device that can improve the measurement accuracy of biological information.
  • FIG. 1 It is a block diagram showing a schematic structure of a measuring device concerning a 1st embodiment of the present invention. It is a figure which shows an example of the use condition of a measuring apparatus. It is a figure explaining the concept of operation
  • FIG. 1 is a block diagram showing a schematic configuration of a measuring apparatus according to the first embodiment of the present invention.
  • the measurement apparatus 10 includes a pressure detection unit 11, a measurement unit 12, a control unit 13, a notification unit 14, a storage unit 15, and a contact unit 16.
  • the measurement device 10 uses a measurement unit 12 configured by, for example, a biosensor, acquires a biometric output of a subject (user) that contacts the contact unit 16, and measures biometric information based on the biometric output.
  • FIG. 2 is a diagram illustrating an example of a usage state of the measurement device 10, and is a diagram illustrating a state where a user presses a finger of a hand that is a test site against the measurement device 10.
  • the measurement apparatus 10 can be configured to acquire biometric output using the measurement unit 12 and measure biometric information in a state where the finger is pressed against the contact unit 16 as shown in FIG.
  • the measurement of biological information by the measurement device 10 is not limited to the example of such a configuration.
  • the measurement device 10 acquires the biometric measurement output in the measurement unit 12, there may be a range of appropriate pressures suitable for acquisition for the contact pressure of the finger (test site) that contacts the contact unit 16. That is, when the contact pressure at the contact portion 16 is too strong or too weak, an accurate biometric output may not be obtained, for example, because the test site is affected by pressure or noise. is there. If accurate biological measurement output cannot be acquired, it is difficult to measure biological information with high accuracy.
  • the measurement apparatus 10 enables the pressure detection unit 11 to detect the contact pressure of the site to be tested that contacts the contact unit 16.
  • the measurement apparatus 10 may measure the biological information in the control unit 13 based on the biological measurement output when the contact pressure is in a predetermined range.
  • the measurement apparatus 10 may notify the information related to the contact pressure from the notification unit 14. With this notification, the user can check whether the contact pressure is within a predetermined range, for example, an appropriate range suitable for measurement of biological information, and whether the contact pressure is stronger or weaker than the predetermined range of pressure. You can know information about pressure.
  • the measurement of the biological information by the measuring device 10 is not limited to the configuration for detecting the contact pressure of the test site in this way.
  • the biological information measured by the measuring device 10 can be various biological information that can be measured using the measuring unit 12, but in the description of the present embodiment, as an example, the measuring device 10 is the biological information. The following description will be given assuming that the blood flow of the subject is measured as information.
  • the pressure detection unit 11 detects the contact pressure of the test site in the contact unit 16.
  • the pressure detection unit 11 is configured by, for example, a piezoelectric element.
  • the pressure detection unit 11 is connected to the control unit 13 and transmits the detected pressure signal to the control unit 13.
  • the measuring unit 12 is composed of a biosensor or the like as described above, and acquires a biometric output from a test site.
  • the measuring unit 12 includes, for example, an irradiation unit 21 and a light receiving unit 22.
  • the irradiating unit 21 irradiates the test site in contact with the contact unit 16 with measurement light.
  • the irradiation unit 21 is, for example, a laser light source that irradiates laser light having a wavelength capable of detecting a predetermined component contained in blood as measurement light, and includes, for example, an LD (laser diode: Laser : Diode).
  • the light receiving unit 22 receives scattered light (detection light) scattered from the test site as a biometric measurement output by the irradiation unit 21 irradiating the test site with the measurement light.
  • the light receiving unit 22 is configured by a PD (photodiode).
  • the measurement unit 12 transmits the photoelectric conversion signal of the scattered light received by the light receiving unit 22 to the control unit 13.
  • the measuring unit 12 may be activated when, for example, the contact pressure is in the predetermined range. In this case, since the measuring device 10 measures the biological information based on the biological measurement output when the contact pressure is in the predetermined range, the measurement unit 12 is at least when the contact pressure is in the predetermined range. It is sufficient to obtain the biometric measurement output. In addition, when the measurement unit 12 is activated when the contact pressure is within the predetermined range described above, when there is no need to obtain a biometric measurement output, the irradiation unit 21 emits laser light and the surrounding laser is emitted. It is possible to prevent light from leaking.
  • the control unit 13 is a processor that controls and manages the entire measurement device 10 including each functional unit of the measurement device 10.
  • the control unit 13 includes a processor such as a CPU (Central Processing Unit) that executes a program that defines a control procedure, and the program is stored in, for example, the storage unit 15 or an external storage medium.
  • a processor such as a CPU (Central Processing Unit) that executes a program that defines a control procedure, and the program is stored in, for example, the storage unit 15 or an external storage medium.
  • a CPU Central Processing Unit
  • control unit 13 determines whether or not acquisition of the biometric output by the measurement unit 12 has been completed. For example, the control unit 13 may determine that the acquisition of the biometric output has ended after a predetermined time has elapsed since the measurement unit 12 started acquiring the biometric output. In addition, for example, when the measurement unit 12 acquires sufficient biometric output for measuring biometric information, the control unit 13 may determine that acquisition of the biometric output has ended.
  • control unit 13 may measure the biological information based on the biological measurement output when the contact pressure at the contact unit 16 is in a predetermined range. For example, the control unit 13 measures the blood flow as biological information using an algorithm or a table that measures the blood flow based on a change in the intensity of the scattered light received by the light receiving unit 22. Further, the control unit 13 measures the biological information based on the biological measurement output when the contact pressure is in a predetermined range, and the contact pressure is within a predetermined range based on the contact pressure detected by the pressure detection unit 11. It can be determined whether or not there is.
  • the control unit 13 irradiates the living tissue with laser light from the irradiation unit 21 and receives the scattered light scattered from the living tissue by the light receiving unit 22. And the control part 13 calculates a blood flow based on the measurement result of the received laser beam.
  • the control unit 13 detects a beat signal (also referred to as a beat signal) generated by light interference between scattered light from a stationary tissue and scattered light from a moving blood cell.
  • This beat signal represents the intensity as a function of time.
  • the control part 13 makes this beat signal the power spectrum which represented power as a function of frequency.
  • the Doppler shift frequency is proportional to the blood cell velocity, and the power corresponds to the amount of blood cells.
  • the control part 13 calculates
  • the notification unit 14 notifies the user who is the subject of information related to the contact pressure at the contact unit 16.
  • the measuring device 10 can measure biological information based on a biological measurement output when the contact pressure is in a predetermined range. That is, it can be made the condition for measuring living body information that a contact pressure becomes a predetermined range. Therefore, the notification unit 14 can prompt the user to adjust the contact pressure to a predetermined range by notifying information on the contact pressure.
  • the notification unit 14 can notify information on whether or not the contact pressure is in the predetermined range as information on the contact pressure in view of urging to adjust the contact pressure to a predetermined range. Thereby, a user's convenience can be improved.
  • the notification unit 14 includes a speaker and can notify information related to contact pressure by outputting sound.
  • the notification unit 14 includes an arbitrary display unit, and can notify information related to contact pressure by displaying an image on the display unit.
  • the notification part 14 may display a character on a display part, and may notify the information regarding contact pressure.
  • the notification unit 14 includes a light emitting element, and can notify information related to contact pressure by light emission of the light emitting element.
  • the display unit described above may be a display device configured by a known display, for example.
  • the display unit displays biological information measured by the control unit 13, for example.
  • the display unit can be configured by various display devices such as a liquid crystal display (LCD) or an organic EL display.
  • the notification unit 14 includes a vibration unit such as a vibrator or a piezoelectric element, and can notify information related to contact pressure by vibration of the vibration unit.
  • a vibration unit such as a vibrator or a piezoelectric element
  • the notification unit 14 performs notification by vibration, it is preferable that the pressure at the test site does not change much due to vibration.
  • the vibration unit described above can generate vibrations to vibrate any part of the measurement device 10 such as the contact unit 16 to present various tactile sensations to the subject (user).
  • the vibration unit can generate various vibrations according to a predetermined drive signal supplied from the control unit 13.
  • the vibration unit can be configured using an arbitrary number of piezoelectric vibrators, or can be configured by providing a transparent piezoelectric element over the entire surface of the touch sensor. Further, the vibration unit can be configured to rotate the eccentric motor once in one cycle of the drive signal as long as it can express vibrations that present tactile sensation.
  • the vibration unit can be configured to rotate the eccentric motor once in one cycle of the drive signal as long as it can express vibrations that present tactile sensation.
  • ECM eccentric rotation mass
  • LRA linear resonance actuator
  • an actuator is configured to cause resonance in the manner of a linear motor, which is a linearly moving motor, as a method in which the vibration unit generates vibration.
  • the vibration unit may be a method of generating vibration such as a piezo-actuator method using a material “piezo element” whose shape changes depending on voltage on / off.
  • a material “piezo element” whose shape changes depending on voltage on / off.
  • the notification method of sound output, image display, light emission or vibration output by the notification unit 14 has been described above, but the notification method by the notification unit 14 is not limited to the above.
  • the notification unit 14 may perform notification using different methods depending on whether the contact pressure is stronger or weaker than the allowable pressure range.
  • the notification unit 14 may notify the contact pressure by combining a plurality of arbitrary notification methods.
  • the notification unit 14 may further notify information regarding a difference between at least one of the appropriate pressure and the allowable pressure and the contact pressure.
  • the notification unit 14 can notify information on the difference between the contact pressure and at least one of the appropriate pressure and the allowable pressure.
  • the user can easily recognize how much the pressure of the finger brought into contact with the contact portion 16 should be increased or decreased. Therefore, the user can easily adjust the contact pressure.
  • such a display makes it easy for the user to adjust the contact pressure to be within the range of the appropriate pressure or the allowable pressure while confirming the notification of the notification unit 14.
  • the notification unit 14 can notify the user when the measurement unit 12 starts and ends the acquisition of the biometric output. By performing the acquisition start notification, the user can recognize that the pressed state of the finger should be maintained. In addition, by notifying the acquisition end, the user can recognize that the finger may be separated from the contact unit 16. Moreover, the notification part 14 may notify the information regarding the measurement result of biometric information.
  • the storage unit 15 can be composed of a semiconductor memory or the like.
  • the storage unit 15 stores various information and a program for operating the measuring apparatus 10, and also functions as a work memory.
  • the storage unit 15 stores history data and the like in which the biological information measured by the measurement device 10 is associated with the contact pressure when measuring the biological information.
  • the control unit 13 may measure the biological information with reference to the history data based on the contact pressure detected by the pressure detection unit 11 and the biological measurement output acquired by the measurement unit 12.
  • the measuring unit 12 acquires a predetermined number of biological measurement outputs at a predetermined time, for example.
  • the predetermined time and the predetermined number can be an arbitrary time and an arbitrary number, respectively.
  • the measurement unit 12 can acquire five biometric measurement outputs by performing five measurements for one second each for five seconds.
  • control unit 13 refers to the history data and responds to the measurement accuracy of biological information for each contact pressure of the five biological measurement outputs.
  • the weighting may be determined.
  • the control unit 13 can determine to perform high weighting on the biometric output related to the contact pressure with high measurement accuracy.
  • control part 13 can measure biometric information by calculating the weighted average which considered the determined weight about five biometric measurement outputs acquired by the measurement part 12.
  • control unit 13 can improve the measurement accuracy of the biological information by measuring the biological information in consideration of the history data stored in the storage unit 15.
  • control unit 13 performs control based on the characteristics of the flow rate calculated with respect to the actual flow rate of a fluid such as blood. For this reason, the storage unit 15 stores the correspondence between the actual flow rate of the fluid and the calculated flow rate, as will be described later.
  • the contact part 16 is a part that contacts a test site such as a finger in order for the user to measure biological information.
  • the contact part 16 can be comprised by a plate-shaped member, for example. Further, the contact portion 16 may be formed of a member that is transparent to at least the measurement light and the detection light.
  • the pressure detection unit 11 detects the pressure applied to the contact unit 16 when a finger or the like comes into contact with the contact unit 16 and transmits the detected contact pressure to the control unit 13.
  • the flow rate of a fluid to be measured including scatterers such as red blood cells in blood is measured.
  • a laser blood flow meter is employed as the living body sensor in the measurement unit 12 and the blood flow rate is measured according to a principle such as a laser Doppler flowmetry (LDF) method will be described.
  • the LDF method is a method for estimating the tissue blood flow rate from the spread of the Doppler shift frequency of the light scattered by the red blood cells when the living tissue is irradiated with laser light. As described above, when the blood flow rate is measured according to such a principle, the measured flow rate may not match the actual flow rate depending on the flow rate.
  • FIG. 3 is a diagram for explaining the concept of the operation of the measuring apparatus 10 according to the present embodiment.
  • the graph shown in FIG. 3 shows the flow rate calculated from the result of measuring the predetermined fluid with a laser blood flow meter in a situation where the actual flow rate of the predetermined fluid such as blood can be acquired.
  • the actual flow rate of the fluid (flow rate per unit time) is shown in the horizontal axis direction
  • the calculated flow rate (flow rate per unit time) of the fluid is shown in the vertical axis direction.
  • the laser blood flow meter used for the measurement has extremely good accuracy. It can be seen that the flow rate of fluid can be measured. In this range, the error between the calculated flow rate of the fluid and the actual flow rate of the fluid is extremely small.
  • the laser blood flow meter used for the measurement cannot measure the fluid flow rate with good accuracy even in the range where the actual flow rate of the fluid is below (2), that is, the range below the point A. Even in this range, the error between the calculated flow rate of the fluid and the actual flow rate of the fluid becomes a size that cannot be ignored.
  • the measurement device 10 changes the contact pressure by notifying the user when the fluid flow rate obtained by the measurement is in a range other than between AB shown in FIG. Control that guides you to do.
  • the flow rate of a fluid such as blood varies depending on the contact pressure at the contact portion 16 at the test site. For example, when the subject (user) strongly presses the finger that is the test site against the contact portion 16, the contact pressure at the contact portion 16 increases and the blood flow slows down. Conversely, for example, if the subject (user) weakens the force of pressing the finger, which is the test site, against the contact portion 16, the contact pressure at the contact portion 16 decreases and the blood flow becomes faster.
  • the measuring apparatus 10 calculates the flow rate of the fluid from the measurement result in a state where the obtained flow rate is within the range between AB shown in FIG. Then, the measuring apparatus 10 presents the result calculated in this way to the user as the final measured value.
  • an offset may be provided in the range between AB shown in FIG.
  • the flow rate for setting such a predetermined offset is shown as (4).
  • the flow rate of the fluid when the flow rate of the fluid is in the range of B-ofs2 to B, it is considered that the error is slightly increased, and the measured flow rate is between (3) and (4). As such, the user may be guided to change the contact pressure.
  • the error between the calculated flow rate of the fluid and the actual flow rate of the fluid is somewhat in the range close to the point A. It may be assumed that it occurs and no measurement is performed in that range.
  • the flow rate for setting such a predetermined offset is indicated as (3).
  • the error is considered to be slightly large, and the measured flow rate is between (3) and (4). The user may be notified to change the contact pressure.
  • the point A + ofs1 and the point B-ofs2 for setting the above-described offset are shown at points somewhat apart from the point A and the point B, respectively, but these are shown reflecting the actual ratio. is not. Actually, the point A + ofs1 and the point B-ofs2 for setting the offset may be set at positions closer to the point A and the point B, respectively.
  • an embodiment in which such an offset is taken into account will be described.
  • the correspondence as shown in FIG. 3 is acquired in advance based on the characteristics of the fluid to be measured and the characteristics of the laser blood flow meter that measures the fluid.
  • the correspondence acquired in this way is stored in, for example, the storage unit 15 as a flow rate characteristic calculated with respect to the actual flow rate of the fluid.
  • FIG. 4 is a flowchart for explaining an example of the operation of the measuring apparatus 10 according to the present embodiment.
  • the measurement apparatus 10 When measuring the blood flow with the measuring device 10, the user starts the measurement in a state where the finger that is the test site is in contact with the contact portion 16.
  • the control unit 13 of the measurement apparatus 10 starts measuring the blood flow rate, for example, using an input from the subject (user) as a trigger.
  • the control unit 13 controls the measurement unit 12 to start acquiring biometric output.
  • the control unit 13 calculates the actual blood flow rate (flow rate X) based on the correspondence as shown in FIG. 3 from the blood flow rate calculated based on the measurement result of the biometric measurement output by the measurement unit 12. get.
  • the control unit 13 determines whether the blood flow rate is equal to or lower than (1) (that is, th or lower) shown in FIG. 3 (step S11). .
  • the control unit 13 notifies the user that the detection error has occurred, for example, by the notification unit 14 (step S12).
  • the notification unit 14 includes a display unit, a display such as “detection error” or “cannot be measured correctly” can be performed on the display unit.
  • the notification to the user may be a display on the display unit, a sound, or a vibration, and can be notified by any method.
  • step S11 When it is determined in step S11 that the blood flow rate exceeds th, the control unit 13 determines whether the blood flow rate (flow rate X) is (3) or less (that is, A + ofs1 or less) shown in FIG. Is determined (step S13). When it is determined that the blood flow rate is equal to or less than A + ofs1, the flow rate of the fluid measured by the measurement apparatus 10 may include some error. Therefore, in this case, the control unit 13 notifies the user, for example, by the notification unit 14 or the like so as to weaken the pressure for contacting the contact unit 16 (step S14).
  • the notification unit 14 includes a display unit
  • a message such as “Please weaken the pressing force a little” or “The pressing force is a little too strong” can be displayed on the display unit.
  • the notification to the user may be a display on the display unit, a sound, or a vibration, and can be notified by an arbitrary method.
  • step S13 When it is determined in step S13 that the blood flow rate exceeds A + ofs1, the control unit 13 has the blood flow rate (flow rate X) equal to or greater than (4) shown in FIG. 3 (ie, B-ofs2 or greater). Is determined (step S15). When it is determined that the blood flow rate is B-ofs2 or more, the flow rate of the fluid measured by the measurement apparatus 10 may still include some error. Therefore, in this case, the control unit 13 notifies the user, for example, by the notification unit 14 or the like so as to increase the pressure for contacting the contact unit 16 (step S16).
  • the notification unit 14 includes a display unit
  • a message such as “Please increase the pressing force a little” or “The pressing force is a little too weak” can be displayed on the display unit.
  • the notification to the user may be a display on the display unit, a sound, or a vibration, and can be notified by an arbitrary method.
  • step S15 When it is determined in step S15 that the blood flow is less than B-ofs2, that is, when it is determined that the blood flow is between (3) and (4) (ie, between A + ofs1 and B-ofs2),
  • the measuring device 10 can measure the flow rate of the fluid with very good accuracy. Therefore, in this case, the control unit 13 starts measurement as a measurement value that is actually presented to the user (step S17).
  • the measurement value (measurement result) measured after this may be displayed on the display unit, sound, or vibration, for example, by the notification unit 14 or the like, and is notified to the user by an arbitrary method. be able to.
  • the control unit 13 calculates the flow rate of a predetermined fluid such as blood based on the biometric measurement output acquired by the measurement unit 12.
  • the flow rate of the predetermined liquid may vary according to the contact pressure of the test site. Then, when it is determined that the error between the calculated flow rate of the fluid and the actual flow rate of the fluid is equal to or greater than a predetermined value, the control unit 13 performs control that induces a change in the contact pressure detected by the pressure detection unit 11.
  • the flow rate calculated by the control unit 13 and the actual flow rate of the fluid are linear. It may be a case where it has not changed.
  • the case where “the error is equal to or greater than a predetermined value” is a case where the graph shown in FIG. 3 is out of the linearly changing region (that is, a region other than between AB).
  • the predetermined value of the error exceeds the value, the error between the calculated flow rate of the fluid and the actual flow rate of the fluid cannot be ignored, and the accuracy of measurement by the measurement device 10 is not guaranteed. It is preferable to set. For example, if the predetermined value of the error is set to a small value that is not zero but substantially close to zero, the laser blood flow meter used for measurement can measure the fluid flow rate with good accuracy.
  • the control unit 13 controls the notification unit 14 to notify the information related to the contact pressure as control for inducing the change in the contact pressure detected by the pressure detection unit 11. Good. Further, as described above, when the controller 13 determines whether or not the error exceeds a predetermined value, when the flow rate of the fluid is within a predetermined offset (A to A + ofs1 and B ⁇ ofs2 to B), Even if the error is less than a predetermined value, it may be determined that the error is greater than or equal to the predetermined value.
  • the flow rate of a fluid such as blood can be measured with extremely good accuracy.
  • the user is notified to change the contact pressure so that the blood flow is between (3) and (4) (that is, between A + ofs1 and B-ofs2).
  • the contact portion 16 induces a change in contact pressure so that the blood flow is between (3) and (4) (that is, between A + ofs1 and B-ofs2).
  • the measurement device according to the second embodiment can be realized by the same configuration as the measurement device 10 according to the first embodiment described above, except for the configuration of the contact unit 16 and the processing related to the operation of the contact unit 16. Therefore, descriptions similar to those of the first embodiment described above are omitted as appropriate, and the contents specific to the second embodiment different from the first embodiment will be mainly described.
  • the configuration of the contact portion 16 is changed in the measurement apparatus 10 described in FIG.
  • the contact portion 16 is fixed to the housing or the like of the measurement apparatus 10.
  • the contact portion 16 is configured to be physically movable.
  • the contact portion 16 can be configured to be physically uneven by displacing the contact portion 16 by driving a motor or a piezoelectric element. That is, in the present embodiment, the contact portion 16 includes a mechanism (pressure adjustment portion) that adjusts the pressure.
  • the pressure adjusting unit adjusts the contact pressure of the test site detected by the pressure detecting unit 11.
  • the contact portion 16 physically moves in a concave-convex manner to induce a change in the contact pressure detected by the pressure detection portion 11 without the user adjusting the contact pressure.
  • Can do For example, when the user maintains the contact pressure and the contact portion 16 is displaced in the convex direction, the contact pressure detected by the pressure detection portion 11 increases. On the other hand, if the contact portion 16 is displaced in the concave direction while the user maintains the contact pressure, the contact pressure detected by the pressure detection portion 11 is weakened.
  • FIG. 5 is a flowchart for explaining an example of the operation of the measuring apparatus 10 according to this embodiment.
  • step S14 in FIG. 4 the user is notified by the notification unit 14 or the like so as to weaken the pressure to contact the contact unit 16.
  • the control unit 13 controls the pressure adjustment unit to displace the contact unit 16 in the concave direction so that the contact pressure detected by the pressure detection unit 11 is weakened.
  • step S16 in FIG. 4 the user is notified by the notification unit 14 or the like so as to increase the pressure for contacting the contact unit 16.
  • step S22 of FIG. 5 the control unit 13 controls the pressure adjusting unit to displace the contact unit 16 in the convex direction so that the contact pressure detected by the pressure detection unit 11 is increased.
  • control unit 13 may control the pressure adjusting unit to adjust the contact pressure of the region to be examined as control for inducing the change in the contact pressure detected by the pressure detecting unit 11. .
  • the flow rate of a fluid such as blood can be measured with extremely good accuracy, similarly to the measuring apparatus 10 according to the first embodiment.
  • the measuring apparatus 10 according to the first embodiment requires the user to adjust the pressure
  • the measuring apparatus 10 according to the second embodiment performs high-accuracy measurement without even asking the user for the burden. Can do.
  • the flow rate of the fluid measured by the measuring apparatus 10 according to the first embodiment or the second embodiment is corrected as necessary.
  • 6 and 7 are diagrams for explaining the concept of the operation of the measurement apparatus 10 according to the present embodiment.
  • the offset described in the first embodiment is not considered.
  • the actual fluid flow rate s1 corresponding to the fluid flow rate p1 calculated by the measurement can be appropriately measured (that is, the range in which the flow rate is between AB). ) Is considered. Even in such a case, the measurement device 10 according to the first or second embodiment described above is guided to change the contact pressure detected by the pressure detection unit 11, for example, as shown in FIG. 6B. Thus, the measurement is performed within a range where the flow rate is between AB. Since the fluid flow rate p2 measured at such a flow rate substantially coincides with the corresponding actual fluid flow rate s2, it can be said to be a highly accurate measurement result.
  • the pressure when the user is in contact with the contact portion 16 may not necessarily be an appropriate pressure for measurement. Therefore, in the third embodiment, in preparation for the case where the contact pressure detected by the pressure detection unit 11 does not become an appropriate pressure for measurement (hereinafter referred to as “standard pressure”), the measurement result is corrected in such a case. To do.
  • the correspondence between the deviation of the measured pressure from the standard pressure and the correction value for the deviation is measured or estimated in advance in the storage unit 15 or the like.
  • FIG. 7A is a graph showing an example of the correspondence relationship between the measured pressure x and the correction value a at that time.
  • a correction value for the measured pressure is defined according to the measured pressure.
  • the origin in the horizontal axis direction indicates the standard pressure, and the measured pressure value deviates from the standard pressure as the distance from the origin increases in the horizontal axis direction.
  • FIG. 7 (A) it is indicated that the correction value is zero at the origin in the vertical axis direction and the correction value is zero, and it is necessary to correct with a larger correction value as the distance from the origin in the vertical axis direction increases. Is shown.
  • a final measurement result is obtained by adding the correction value a shown in FIG. 7A to the calculated fluid flow rate p2 shown in FIG. 6B.
  • the correction value a is added has been described, but correction such as multiplication by a coefficient can also be performed.
  • a correction value for multiplication is defined in advance.
  • correction terms that are variously defined as described above may be defined in consideration of the characteristics of each user, for example, at the initial setting stage before the measurement device 10 starts the measurement. In this case, for example, before the measurement is started by the measurement device 10, the user is notified to change the pressure when actually contacting the contact portion 16, and the control is performed after measuring the change in the pressure.
  • the unit 13 may calculate an appropriate correction value.
  • control unit 13 may correct the calculated flow rate of the fluid according to the contact pressure of the test site detected by the pressure detection unit 11.
  • the measuring apparatus 10 even when the measured fluid flow rate is not measured at an ideal pressure, the measurement result can be appropriately corrected. .
  • the contact pressure detected by the pressure detection unit 11 is detected. Controlled to guide change.
  • the fluid calculated based on the error characteristics is calculated. The flow rate may be corrected. In this way, even if measurement is performed at a flow rate in a range exceeding (4) or (5) in FIG.
  • FIG. 8 is a diagram showing an example of a mobile phone equipped with the measuring apparatus 10 of FIG.
  • a mobile phone is shown as an example of an electronic device on which the measurement device 10 is mounted.
  • the electronic device on which the measurement device 10 is mounted can be various communication devices such as a smartphone.
  • the mobile phone 40 includes a measuring device 10 on the back side thereof.
  • the mobile phone 40 shown as an example in FIG. 8A includes a rear display 41 on the back side thereof. On the rear display 41, for example, information on contact pressure is displayed as an indicator.
  • the notification unit 14 may notify information on contact pressure from the electronic device. That is, FIG. 8 shows an example in which the notification unit 14 is configured as the rear display 41.
  • the rear display 41 may include a display unit.
  • the rear display 41 increases or decreases the contact pressure depending on the display on the rear display 41 when the measurement apparatus 10 does not generate vibration or sound during measurement of biological information. , Can notify the user.
  • the rear display 41 may display that the contact pressure has been adjusted in, for example, step S21 or step S22.
  • FIG. 8B is a diagram illustrating an example of a case where the user uses the mobile phone 40 including the measurement device 10 to measure biological information.
  • the user causes the measuring device 10 to measure biological information by bringing the finger into contact with the contact portion 16.
  • the notification unit 14 can display information on contact pressure and the like on the rear display 41 as an indicator.
  • the display of the information regarding contact pressure is not limited to that performed by the rear display 41.
  • the notification unit 14 outputs a sound from a speaker included in the mobile phone 40, emits light from a light emitting element included in the mobile phone 40, or vibrates a vibration unit included in the mobile phone 40. Information can be notified.
  • the measurement device 10 When the user uses the mobile phone 40 including the measurement device 10 to measure biometric information, the measurement device 10 activates a dedicated application for the user to measure biometric information using the mobile phone 40. Thus, measurement of biological information may be started.
  • the measuring device 10 may automatically start measuring biological information when the contact pressure is detected at the contact portion 16. In this case, the user can start measurement of biological information by bringing a finger into contact with the contact unit 16 without activating the application.
  • the measuring device 10 can notify the user of the measurement result by various methods.
  • the measurement apparatus 10 may display the measured blood flow value (fluid flow rate) on a display included in the mobile phone 40.
  • the measurement device 10 may reproduce different sounds based on a predetermined threshold value based on the measured blood flow value (fluid flow rate).
  • the measurement device 10 may change the operability of the mobile phone 40 based on a predetermined threshold value based on the measured blood flow value (fluid flow rate), for example. In this case, when the user operates the mobile phone 40, the user can know the measurement result by the operability.
  • the measuring apparatus 10 may perform only a notification indicating that the measurement is completed, for example.
  • the measurement apparatus 10 can perform such notification by vibrating the vibration unit of the mobile phone 40, for example.
  • the user when the user wants to know the measurement result, the user can operate the mobile phone 40 to display the result on the mobile phone 40.
  • the arrangement of the measuring device 10 in the mobile phone 40 is not limited to that shown in FIG.
  • the measuring device 10 may be disposed on another part of the back surface of the mobile phone 40, or may be disposed on the surface or side surface of the mobile phone 40.
  • the electronic device on which the measuring apparatus 10 is mounted is not limited to the mobile phone 40.
  • the measuring apparatus 10 can be mounted on a wide variety of electronic devices such as a portable music player, a notebook computer, a wristwatch, a tablet terminal, and a game machine. That is, the present invention can also be realized as an electronic device including the above-described measuring device.
  • the blood flow rate is calculated.
  • each of the above-described embodiments can be implemented not only as an invention of the measurement apparatus 10 or an electronic apparatus including the measurement apparatus 10 but also as an invention of a method of performing measurement in such an apparatus or apparatus.
  • the measurement method according to the present invention is a measurement method for measuring biological information by bringing a test site into contact with the contact unit 16, a measurement step for obtaining a biometric output from the test site, Calculated in the pressure detection step for detecting the contact pressure of the test site, the calculation step for calculating the flow rate of a predetermined fluid such as blood based on the biometric output acquired in the measurement step, and the calculation step A control step for performing a control for inducing a change in the contact pressure detected in the pressure detection step when the error between the flow rate and the actual flow rate of the fluid exceeds a predetermined value.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Physiology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'invention concerne la fourniture d'un dispositif de mesure capable d'améliorer la précision de mesure d'informations biologiques. L'invention concerne un dispositif de mesure 10 qui mesure des informations biologiques en ayant une région à examiner en contact avec une section de contact 16 et qui est pourvu de : une unité de mesure 12 qui acquiert une sortie de mesure biologique depuis la région à examiner ; une unité de détection de pression 11 qui détecte une pression de contact au niveau de la section de contact 16, ladite pression de contact étant appliquée depuis la région à examiner ; et une unité de commande 13 qui calcule le débit d'un fluide prédéterminé sur la base de la sortie de mesure biologique acquise au moyen de l'unité de mesure 12. Dans les cas où il est déterminé qu'une erreur entre le débit calculé ainsi et un débit réel du fluide est égale ou supérieure à une valeur prédéterminée, l'unité de commande 13 exécute une commande pour introduire un changement de la pression de contact.
PCT/JP2015/004873 2014-09-26 2015-09-25 Dispositif de mesure, procédé de mesure et appareil électronique pourvu du dispositif de mesure Ceased WO2016047145A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-197252 2014-09-26
JP2014197252A JP2016067405A (ja) 2014-09-26 2014-09-26 測定装置、測定方法、および測定装置を備える電子機器

Publications (1)

Publication Number Publication Date
WO2016047145A1 true WO2016047145A1 (fr) 2016-03-31

Family

ID=55580691

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/004873 Ceased WO2016047145A1 (fr) 2014-09-26 2015-09-25 Dispositif de mesure, procédé de mesure et appareil électronique pourvu du dispositif de mesure

Country Status (2)

Country Link
JP (1) JP2016067405A (fr)
WO (1) WO2016047145A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102655738B1 (ko) * 2016-12-27 2024-04-05 삼성전자주식회사 접촉형 혈압 측정 장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6384207U (fr) * 1986-11-19 1988-06-02
JP2003210425A (ja) * 2002-01-25 2003-07-29 Seiko Instruments Inc 循環動態測定装置
JP2005130969A (ja) * 2003-10-29 2005-05-26 Seiko Instruments Inc 循環動態測定装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6384207U (fr) * 1986-11-19 1988-06-02
JP2003210425A (ja) * 2002-01-25 2003-07-29 Seiko Instruments Inc 循環動態測定装置
JP2005130969A (ja) * 2003-10-29 2005-05-26 Seiko Instruments Inc 循環動態測定装置

Also Published As

Publication number Publication date
JP2016067405A (ja) 2016-05-09

Similar Documents

Publication Publication Date Title
US20190175034A1 (en) Measurement device and measurement method
JP2015173935A (ja) 生体計測装置および生体計測方法
KR20110080316A (ko) 터치스크린을 구비한 휴대용 단말기의 햅틱 피드백 제어 방법 및 장치
CN100475130C (zh) 振动触觉感知仪
JP2013123605A (ja) 超音波診断装置及び超音波診断装置の制御方法
JP6616936B2 (ja) 測定装置、測定方法、および測定装置を備える電子機器
WO2016047145A1 (fr) Dispositif de mesure, procédé de mesure et appareil électronique pourvu du dispositif de mesure
JP2016096848A (ja) 測定装置及び測定方法
JP6680837B2 (ja) 測定装置、測定方法、および測定装置を備える電子機器
JP2016067406A (ja) 測定装置及び測定方法
JP2009201919A (ja) 脈波検出装置および脈波検出方法
WO2016017148A1 (fr) Dispositif de mesure et procédé de mesure
WO2015194163A1 (fr) Dispositif de mesure et procédé de mesure
JP2016026518A (ja) 測定装置及び測定方法
JP6335673B2 (ja) 測定装置及び測定方法
JP2016007504A (ja) 測定装置、測定システム、測定方法、および測定装置を備える電子機器
JP6633040B2 (ja) 測定装置及び測定方法
JP2009028269A (ja) 光照射美容器具
JP5065798B2 (ja) 眼科用超音波測定装置及びプログラム
JP6730899B2 (ja) 電子装置、制御方法及びプログラム
WO2015162924A1 (fr) Dispositif de mesure, système de mesure, procédé de mesure, et dispositif électronique comprenant let dispositif de mesure
JP2015181908A (ja) 測定装置、測定システム、測定方法、及び測定装置を備える電子機器
US11832972B2 (en) Biological analysis device, biological analysis method, and program
WO2018062323A1 (fr) Dispositif électronique, procédé de commande et programme
JP4779522B2 (ja) 成分検査方法およびその装置

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: 15843282

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15843282

Country of ref document: EP

Kind code of ref document: A1