WO2019123559A1 - 脂質計測装置及びその方法 - Google Patents
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- WO2019123559A1 WO2019123559A1 PCT/JP2017/045667 JP2017045667W WO2019123559A1 WO 2019123559 A1 WO2019123559 A1 WO 2019123559A1 JP 2017045667 W JP2017045667 W JP 2017045667W WO 2019123559 A1 WO2019123559 A1 WO 2019123559A1
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Definitions
- the present invention relates to a lipid measuring device and a method thereof.
- Postprandial hyperlipidemia is noted as a risk factor for arteriosclerosis. Higher non-fasting triglyceride levels have been reported to increase the risk of developing coronary artery disease events.
- Patent Document 1 discloses a method for solving such a problem. According to the method of Patent Document 1, blood collection can be eliminated by non-invasive lipid measurement. This makes it possible to measure blood lipids not only at medical institutions but also at home. By enabling instantaneous data acquisition, it becomes possible to measure blood lipids that are continuous in time.
- the present invention has been made to solve such conventional problems, and an object thereof is to provide an apparatus and method capable of specifying a suitable site for lipid measurement.
- the lipid measuring device comprises: an irradiating unit which irradiates light at a predetermined light intensity to a predetermined site of the living body from outside the living body into the living body, and a predetermined interval from the irradiation position of light by the irradiating unit.
- an irradiating unit which irradiates light at a predetermined light intensity to a predetermined site of the living body from outside the living body into the living body, and a predetermined interval from the irradiation position of light by the irradiating unit.
- static parameters of light in the living body are calculated.
- the controller has a controller which calculates and calculates a dynamic parameter based on a time change of the static parameter, and determines a region of a living body suitable for lipid measurement from the static parameter and the dynamic parameter.
- an irradiation unit for irradiating light at a predetermined light intensity to a predetermined site of the living body from outside the living body from inside the living body, and a predetermined interval from the irradiation position of light by the irradiation unit A computer of the lipid measurement apparatus having at least one light intensity detection unit disposed continuously or continuously to detect the light intensity emitted from the living body, the light intensity detected by the light intensity detection unit Based on the process of calculating static parameters of light in the living body, the process of calculating dynamic parameters based on the time change of the static parameters, and the static parameters and the dynamic parameters, the part of the living body suitable for lipid measurement And a process of determining.
- an irradiating unit for irradiating light at a predetermined light intensity to a predetermined site of the living body from outside the living body from inside the living body, and a predetermined interval from the irradiation position of light by the irradiating unit
- a lipid measuring device connected to a user device having at least one light intensity detection unit that detects light intensity emitted from a living body, and is disposed by the light intensity detection unit; Based on the measured light intensity, static parameters of light in the living body are calculated, dynamic parameters are calculated based on time change of static parameters, and from the static parameters and dynamic parameters, a part of the living body suitable for lipid measurement Control unit to determine the
- lipid measurement device and method of the present invention it is possible to specify a suitable site for lipid measurement.
- composition of a lipid measuring device of an embodiment It is a figure showing composition of a lipid measuring device of an embodiment. It is a figure which shows scattering of the light by blood lipid. It is a figure which shows scattering of the light by blood lipid. It is a figure showing composition of a control system of a lipid measuring device of an embodiment. It is a flow chart of lipid measurement processing of an embodiment. It is a figure showing composition of a lipid measuring system of an embodiment. It is a figure showing composition of a control system of a lipid measuring device of an embodiment. It is a flow chart of lipid measurement processing of an embodiment. It is a figure which shows the result of a fat loading test. It is a figure which shows the optical path in light measurement.
- FIG. 1 is a diagram showing the configuration of a lipid measuring device according to an embodiment.
- the lipid measurement device 1 includes an irradiation unit 2, a light intensity detection unit 3, a control unit 4, and a notification unit 5.
- the irradiation unit 2 includes a light source 22 for irradiating light at a predetermined irradiation position 21 from the outside of the predetermined area of the living body toward the inside of the living body.
- the light source 22 can adjust the wavelength of the light to be emitted.
- the light source 22 can adjust the wavelength range out of the wavelength range in which light is absorbed by plasma minerals.
- the light source 22 can be adjusted outside the wavelength range in which light is absorbed by cellular components of blood.
- the cellular components of blood are red blood cells, white blood cells and platelets in blood. Plasma minerals are water and electrolytes in blood.
- the wavelength range of the light source 22 is preferably about 1400 nm or less, and about 1500 nm to about 1860 nm, in consideration of the wavelength range in which light is absorbed by plasma minerals. Furthermore, the wavelength range of the light source 22 is more preferably about 580 nm to about 1400 nm and about 1500 nm to about 1860 nm in consideration of the wavelength range in which light is absorbed by cellular components of blood.
- the wavelength range used for the light source 22 By setting the wavelength range used for the light source 22 to the above range, in the light detected by the light intensity detection unit 3 described later, the absorption of light by the influence of light absorption by the inorganic substance of plasma and the cell component of blood Reduce the impact of As a result, there is no absorption sufficient to identify the substance, and the light energy loss due to absorption is negligible. Therefore, the light in the blood is transmitted to a distance by scattering by blood lipids and is released outside the body.
- the irradiation unit 2 has an arbitrary time length for irradiating light such as continuous irradiation of light or pulse-like irradiation of light according to the calculation method of the scattering coefficient ⁇ s ′ by the control unit 4 described later. Can be adjusted.
- the irradiation unit 2 can arbitrarily modulate the intensity of the light to be irradiated or the phase of the light.
- the irradiation unit 2 may use a light source 22 whose wavelength is fixed.
- the irradiation part 2 may be a mixture of light sources of different wavelengths or light of multiple wavelengths.
- the irradiation part 2 is a fluorescent lamp, LED, a laser, an incandescent lamp, HID, a halogen lamp etc., for example.
- the illuminance of the irradiation unit 2 may be controlled by the control unit 4 or a separate control circuit may be provided.
- the light intensity detection unit 3 receives light emitted from the living body to the outside of the living body and detects the light intensity. When a plurality of light intensity detection units 3 are used, the light intensity detection units 3 are installed at different distances with the irradiation position 21 as the approximate center. As shown in FIG. 1, in the embodiment, the first light intensity detection unit 31 and the second light intensity detection unit 32 are sequentially arranged in a straight line on the same plane at predetermined intervals from the irradiation position 21.
- the light intensity detection unit 3 may be a photodiode, a CCD, or a CMOS.
- the distance between the irradiation position 21 and the first detection position 331 by the first light intensity detection unit 31 is a first irradiation detection distance ⁇ 1.
- the distance to the second detection position 332 by the light intensity detection unit 32 is defined as a second irradiation detection distance ⁇ 2.
- a predetermined distance ⁇ is provided between an irradiation position 21 for irradiating light to a living body and a detection position 31 for detecting the light intensity emitted from blood (E in the drawing) in the living body.
- a predetermined distance ⁇ it is possible to suppress the influence of light emitted from the living body (B in the figure) directly reflected by the irradiated light (A in the figure) reflected by the scatterer on the surface of the living body and in the vicinity of the surface. Do. After the irradiated light reaches a depth where lipids such as lipoproteins are present, the light is reflected by lipids in the blood (D in the figure).
- the light intensity of the backscattered light (C in the figure) emitted from the living body is detected through the reflection of light reflected by the lipid. Further, by increasing the distance ⁇ between the irradiation position 21 and the detection position 31, the optical path length becomes long. For this reason, the number of collisions with lipids increases, and the light to be detected is largely affected by scattering. By increasing the distance ⁇ , it is easy to catch the influence of scattering which has been weak and difficult to detect.
- a configuration may be employed in which a living body (E in the figure) is sandwiched between the irradiation unit 2 and the light intensity detection unit 3 and the light intensity detection unit 3 detects light from the irradiation unit 2.
- Lipoprotein to be measured has a globular structure covered with apoprotein or the like. Lipoproteins exist in a solid like state in blood. Lipoproteins have the property of reflecting light. In particular, chylomicrons (CM) and VLDL, which have large particle diameters and specific gravities, contain a large amount of neutral fat (TG), and have the property of more easily scattering light. Therefore, the light intensity detected by the light intensity detection unit 3 includes the influence of light scattering by lipoproteins.
- CM chylomicrons
- VLDL which have large particle diameters and specific gravities, contain a large amount of neutral fat (TG), and have the property of more easily scattering light. Therefore, the light intensity detected by the light intensity detection unit 3 includes the influence of light scattering by lipoproteins.
- the arrangement in the case of providing a plurality of detection positions 31 is not limited to linear as long as they are arranged at different distances with the irradiation position 21 as the approximate center, and may be circular, wavy, zigzag, etc. It can be selected appropriately. Further, the first irradiation detection distance ⁇ 1 and the second irradiation detection distance 22 from the irradiation position 21 to the detection position 31 and the distance between the detection positions 331 and 332 are not limited to fixed intervals, and It may be continuous.
- FIG. 4 is a block diagram of the lipid measuring device 1 of the embodiment.
- the detection unit 3 and the notification unit 5 are connected.
- the CPU 41, the ROM 43 and the RAM 44 constitute a control unit (controller) 4.
- the ROM 43 stores in advance a program executed by the CPU 41 and a threshold.
- the RAM 44 has an area for developing a program to be executed by the CPU 41 and various memory areas such as a work area serving as a work area for data processing by the program.
- the storage unit 45 stores data of appropriate numerical ranges of static parameters and dynamic parameters prepared in advance.
- the storage unit 45 may be a non-volatile internal memory such as a hard disk drive (HDD), a flash memory, or a solid state drive (SSD).
- HDD hard disk drive
- flash memory flash memory
- SSD solid state drive
- the external I / F 46 is an interface for communicating with an external device such as a client terminal (PC), for example.
- the external I / F 46 may be any interface that performs data communication with an external device, and may be, for example, a device (such as a USB memory) locally connected to the external device, or a network for communicating via a network It may be an interface.
- the control unit 4 calculates static parameters in the living body based on the light intensity detected by the light intensity detection unit 3.
- the light intensity detected by the light intensity detector 3 includes the influence of light scattering by lipoproteins. From that, the scattering coefficient ⁇ s ' is calculated.
- the static parameters in the embodiment are not limited to those that quantify the efficiency of the general scattering process, but may be those that digitize the influence of scattering under certain conditions in consideration of the scattering phenomenon. Including. The details will be described below.
- control unit 4 in the embodiment calculates the light intensity ratio or the light intensity difference.
- the control unit 4 calculates the scattering coefficient ⁇ s ′ from the ratio of the light intensities of the plurality of positions detected by the light intensity detection unit 3.
- the control unit 4 calculates a scattering coefficient ⁇ s ′ based on a scattering phenomenon in which the irradiated light is attenuated by scattering as the distance to the detection position 33 increases.
- the irradiation unit 2 irradiates continuous light of a predetermined light intensity, and the control unit 4 controls the first light intensity R ( ⁇ 1) detected by the first light intensity detection unit 31 and the second light intensity detection unit
- the scattering coefficient ⁇ s ' is calculated from the ratio to the second light intensity R ( ⁇ 2) detected by S. 32 (Equation 1).
- the control unit 4 calculates the scattering coefficient ⁇ s ′ from the difference in light intensity at the plurality of positions detected by the light intensity detection unit 3.
- the control unit 4 calculates a scattering coefficient ⁇ s ′ based on a scattering phenomenon in which the irradiated light is attenuated by scattering as the distance to the detection position 33 increases.
- the control unit 4 calculates the scattering coefficient ⁇ s ' from the difference between the light intensity R ( ⁇ 1) and the light intensity R ( ⁇ 2) at the first detection position 331 and the second detection position 332 (Equation 2).
- ⁇ s ' R ( ⁇ 1) -R ( ⁇ 2)
- control unit 4 calculates the scattering coefficient ⁇ s ′ by the control unit 4 .
- the control unit 4 analyzes using standard deviation, Brownian motion, autocorrelation function, frequency analysis, speckle, Doppler shift, Reynolds number, blood flow, blood volume, pulsation width, etc. , Calculate dynamic parameters, which are indicators for measuring the movement of blood. Dynamic parameters are indicators of blood movement.
- the control unit 4 may set the measurement time of the light intensity to 20 seconds or less, and calculate the dynamic parameter from the change amount of the light intensity in the measurement time.
- the skin layer is a part of a living body suitable for lipid measurement.
- a pulsation parameter is not seen, and a dynamic parameter without periodicity is information indicating the position of the vein (at least depending on the vein information), and the vein is a part of the living body suitable for lipid measurement. It can be said.
- the sampling rate of the light receiving unit is preferably 10 msec or less, and the resolution is preferably 16 bits or more.
- the variation coefficient CV of the scattering coefficient ⁇ s' is included.
- the control unit 4 calculates the variation coefficient CV of the scattering coefficient ⁇ s ′ from the temporal change of the calculated scattering coefficient ⁇ s ′.
- the variation coefficient CV can be calculated, for example, by the following equation 1.
- the time for measuring the scattering coefficient ⁇ s' is 1 msec or more and 30 sec or less, preferably 5 msec or more and 25 sec or less, and more preferably 10 msec or more and 20 sec or less. (Note that "sec” is an abbreviation for "second")
- the control unit 4 calculates static parameters and dynamic parameters, and determines a site suitable for lipid measurement from the static parameters and dynamic parameters.
- blood to be measured flows in blood vessels.
- dynamic parameters are calculated by measuring for a fixed time per analysis, and static parameters indicating all scattering included in the light path are calculated, and from these two parameters, the lipid measurement in each individual is optimum. Determine the part.
- acquisition of static parameters and dynamic parameters is not limited to that via a communication line, and may be manually input.
- the storage unit 45 stores data of an appropriate numerical range of static parameters and dynamic parameters prepared in advance.
- the control unit 4 compares the data stored in the storage unit 45 with the calculated static parameters and dynamic parameters to determine whether or not the region is suitable for lipid measurement.
- control unit 4 has a scattering coefficient ⁇ s ′ of 0.4 to 0.53 and a variation coefficient CV of 0.1% to 5.0%, preferably a scattering coefficient ⁇ s ′ of 0.41 to 0.51 and a variation coefficient CV Is 0.2% or more and 1.5% or less, more preferably 0.42 or more and 0.46 or less, and when the coefficient of variation CV is 0.5% or more and 1.0% or less, it is a site suitable for lipid measurement. judge.
- the basis of this numerical range will be described in the examples.
- the method using the variation coefficient CV is excellent as a simple method because the apparatus configuration is simple and the calculation is simple.
- the static parameter is the scattering coefficient
- the dynamic parameter is the variation coefficient of the scattering coefficient.
- the static parameter is an average value of blood flow in a fixed time (hereinafter, “average value of blood flow in fixed time”
- the dynamic parameter is the coefficient of variation of the mean value of blood flow in a certain period of time (hereinafter referred to as "the coefficient of variation of the mean value of blood flow in a certain period of time" It can also be called “coefficient”.
- the control unit 4 calculates a static parameter (average value of blood flow) in the living body based on the light intensity detected by the light intensity detection unit 3.
- a static parameter average value of blood flow
- only one light receiving unit may be used, and a distance between incident and light receiving units may be zero.
- the control unit 4 of the embodiment calculates the average value of the blood flow based on the light intensity detected by the light intensity detection unit 3.
- the blood flow rate may be measured using Doppler shift or speckle.
- the measurement principle is the same as that of a general laser blood flow meter, and it measures the phase difference of the light receiving component that occurs when the scattering material moves under light irradiation (the URL of an example of the measurement principle is as follows) Http://www.omegawave.co.jp/products/flo/principle.shtml). And the time change such as this phase difference becomes the blood flow volume.
- a value obtained by averaging the blood flow volume in a specific time range (that is, the average value of the blood flow volume) is used as a static parameter.
- the control unit 4 calculates a dynamic parameter (coefficient of variation of blood volume), which is an index for measuring the movement of blood, from the static parameter (average value of blood flow volume).
- One of the dynamic parameters includes the coefficient of variation of blood flow at a fixed time.
- the control unit 4 calculates the variation coefficient of the blood flow rate from the time change of the calculated average value of the blood volume.
- the variation coefficient of the blood volume can be calculated, for example, by the following equation 2.
- the time for measuring the blood flow is preferably 0.5 sec or more and 10 sec or less, and more preferably 1 sec or more and 5 sec or less.
- the control unit 4 calculates static parameters and dynamic parameters, and determines a site suitable for lipid measurement from the static parameters and dynamic parameters.
- the storage unit 45 stores data of an appropriate numerical range of static parameters and dynamic parameters prepared in advance.
- the control unit 4 compares the data stored in the storage unit 45 with the calculated static parameters and dynamic parameters to determine whether or not the region is suitable for lipid measurement.
- the average value of the blood flow is 3.1 mL / min or more and 21.0 mL / min or less, and the variation coefficient of the blood flow is 5% or more and 50% or less, preferably, the average value of the blood flow is 5.1 mL / min or more and 15.0 mL / min or less, and the coefficient of variation of blood flow is 15% or more and 40% or less, more preferably, the average value of blood flow is 5.1 mL / min or more and 13.0 mL / min or less, When the coefficient of variation of blood flow is 10% or more and 30% or less, it is determined that the region is suitable for lipid measurement. (Note that "min” is an abbreviation of "minute”.) The basis of this numerical range will be described in the examples.
- the notification unit 5 of the embodiment is a buzzer, a vibrator, a lamp or the like.
- the control unit 4 determines that the region is suitable for lipid measurement, the control unit 4 causes the notification unit 5 to sound a buzzer, vibrate, or turn on a lamp. This notifies the user that the site is suitable for lipid measurement.
- FIG. 5 is a flowchart of the lipid measurement process of the embodiment.
- the irradiation unit 2 irradiates the irradiation position 21 with continuous light (step 101).
- the first light intensity detection unit 31 detects the light intensity at the first detection position 331, and the second light intensity detection unit 32 detects the light intensity at the second detection position 332 (step 102).
- the control unit 4 calculates a light intensity difference or light intensity ratio between the first light intensity at the first detection position 331 and the second light intensity at the second detection position 332, and the light intensity difference or the light intensity difference.
- Static parameters scattering coefficient ⁇ s '
- the control unit 4 calculates a static parameter (average value of blood flow) from the light intensity at the first detection position 331 or the light intensity at the second detection position 332.
- the control unit 4 calculates a dynamic parameter which is an index of blood flow from the time change of the static parameter (step 104).
- the control unit 4 may set the measurement time of the light intensity to 20 seconds or less, and calculate the dynamic parameter from the change amount of the light intensity in the measurement time.
- the control unit 4 determines that the predetermined part of the living body irradiated with the light is a part suitable for lipid measurement based on the static parameter and the dynamic parameter (step 105). For example, the control unit 4 compares the data of the appropriate numerical range of the static parameters and dynamic parameters prepared in advance stored in the storage unit 45 with the calculated static parameters and dynamic parameters, It is determined whether or not the part is suitable for measurement.
- the control unit 4 determines that the scattering coefficient ⁇ s' is 0.4 to 0.53 and the variation coefficient CV is 0.1% to 5.0%.
- the scattering coefficient ⁇ s ′ is 0.41 or more and 0.51 or less
- the variation coefficient CV is 0.2% or more and 1.5% or less
- the scattering coefficient ⁇ s ′ is 0.42 or more and 0.46 or less
- the variation coefficient CV When it is 0.5% or more and 1.0% or less, it is determined that the site is suitable for lipid measurement.
- the control unit 4 determines that the average value of blood flow is 3.1 mL / min or more and 21.0 mL / min or less, and The variation coefficient of blood flow is 5% to 50%, preferably, the average value of blood flow is 5.1 mL / min to 15.0 mL / min, and the variation coefficient of blood flow is 15% to 40%, More preferably, it is a site suitable for lipid measurement when the mean value of blood flow is 5.1 mL / min or more and 13.0 mL / min or less and the coefficient of variation of blood flow is 10% or more and 30% or less judge.
- control unit 4 determines that the region is suitable for lipid measurement, the control unit 4 controls the notification unit 5 to sound a buzzer, vibrate or light the lamp (step 106).
- the lipid measuring device and operation method of the present embodiment it is possible to determine whether or not the region is appropriate for lipid measurement based on static parameters and dynamic parameters.
- lipid measuring device according to another embodiment.
- the structure of the lipid measuring device of other embodiment has a part in common with the structure of the lipid measuring device of the said embodiment, it mainly demonstrates a different part.
- the irradiation part 2 and light intensity detection part which irradiate light It is good also as a system which constituted 3 and a notice part 5 as a user apparatus, and provided control part 4 in a server apparatus connected to a user apparatus.
- FIG. 1 A system configuration diagram of the embodiment is shown in FIG.
- the system includes a lipid measurement device 200, an access point 300, and a user device 400.
- the user device 400 includes an irradiation unit 42, a light intensity detection unit 43, a control unit 44, a notification unit 45, and a communication unit (external I / F) 46.
- the configurations and functions of the irradiation unit 42, the light intensity detection unit 43, and the notification unit 45 are the same as those in the above embodiment, and thus the description thereof is omitted.
- the lipid measurement device 200 communicably connects to the user device 400 via the access point 300 or the like.
- the control unit 24 of the lipid measurement device 200 calculates static parameters and dynamic parameters from the light intensity transmitted from the user device 400, and determines a portion suitable for lipid measurement.
- description is abbreviate
- the lipid measuring device 200 of the embodiment is, for example, a server device.
- the configuration of the control system of the lipid measurement device 200 of the embodiment will be described.
- FIG. 7 is a block diagram of the lipid measuring device 200 according to the embodiment.
- a CPU 202, a read only memory (ROM) 203, a random access memory (RAM) 204, a communication unit (external I / F) 205, and a storage unit 23 are connected via a system bus 208.
- the control unit 24 is configured by the CPU 202, the ROM 203, and the RAM 204.
- the ROM 203 stores in advance a program executed by the CPU 202 and a threshold.
- various memory areas such as an area for expanding a program to be executed by the CPU 202 and a work area serving as a work area for data processing by the program are dynamically formed.
- the storage unit 23 stores data of suitable numerical ranges of static parameters and dynamic parameters prepared in advance.
- the storage unit 23 may be any device that stores data in a nonvolatile manner, and is an internal storage such as a solid state drive (SSD) or a hard disc drive (HDD).
- SSD solid state drive
- HDD hard disc drive
- the data is stored in the storage unit 23, the data may be stored in the RAM 204.
- the control unit 24 calculates static parameters and dynamic parameters from the light intensities detected by the plurality of light intensity detection units 43. The control unit 24 determines whether or not the region is appropriate for lipid measurement from static parameters and dynamic parameters.
- a communication unit (external I / F) 205 is an interface for communicating with an external device.
- the communication unit (external I / F) 205 may be an interface that performs data communication with an external device.
- the communication unit (external I / F) 205 may be a device (such as a USB memory) locally connected to an external device, or may be a network interface for communicating via a network.
- the data communication method may be Wi-Fi (registered trademark) communication or USB communication.
- the lipid measuring device 200 executes a lipid measuring process based on a preset program.
- FIG. 8 is a flowchart of the lipid measurement process.
- the irradiation unit 4 of the user device 400 irradiates the irradiation position with continuous light (step 201).
- the first light intensity detection unit 41 of the user device 400 detects the light intensity at the first detection position, and the second light intensity detection unit 42 detects the light intensity at the second detection position (step 202) .
- the control unit 24 of the lipid measurement device 200 calculates a light intensity difference or light intensity ratio between the first light intensity at the first detection position and the second light intensity at the second detection position, and the light intensity A static parameter (scattering coefficient ⁇ s') is calculated based on the difference or the light intensity ratio.
- the control unit 24 calculates a static parameter (average value of blood flow) from the light intensity at the first detection position or the light intensity at the second detection position. (Step 203).
- the control unit 24 of the lipid measurement device 200 calculates a dynamic parameter serving as an indicator of blood flow from the time change of the static parameter (step 204).
- the control unit 4 may set the measurement time of the light intensity to 20 seconds or less, and calculate the dynamic parameter from the change amount of the light intensity in the measurement time.
- the control unit 24 of the lipid measurement device 200 determines that the predetermined part of the living body irradiated with light is a part suitable for lipid measurement based on the static parameter (and the dynamic parameter) (step 205). 24 compares the data of the appropriate numerical range of static parameters and dynamic parameters prepared in advance with the calculated static parameters and dynamic parameters, and determines whether it is a site suitable for lipid measurement or not judge.
- the control unit 24 has a scattering coefficient ⁇ s' of 0.4 to 0.53 and a variation coefficient CV of 0.1% to 5.0%.
- the scattering coefficient ⁇ s ′ is 0.41 or more and 0.51 or less
- the variation coefficient CV is 0.2% or more and 1.5% or less
- the scattering coefficient ⁇ s ′ is 0.42 or more and 0.46 or less
- the variation coefficient CV When it is 0.5% or more and 1.0% or less, it is determined that the site is suitable for lipid measurement.
- the control unit 24 determines that the average value of blood flow is 3.1 mL / min or more and 21.0 mL / min or less, and The variation coefficient of blood flow is 5% to 50%, preferably, the average value of blood flow is 5.1 mL / min to 15.0 mL / min, and the variation coefficient of blood flow is 15% to 40%, More preferably, it is a site suitable for lipid measurement when the mean value of blood flow is 5.1 mL / min or more and 13.0 mL / min or less and the coefficient of variation of blood flow is 10% or more and 30% or less judge.
- control unit 24 of the lipid measurement device 200 determines that the region is suitable for lipid measurement, the control unit 24 controls the notification unit 45 of the user device 400 to sound a buzzer, vibrate, or turn on a lamp. (Step 206).
- the light measurement includes all information such as skin color, skin and muscle contained in the skin layer, blood layer and muscle layer of the light path. Therefore, it is affected by the depth of the blood layer and the blood volume due to the thickness of the blood vessel. ( Figure 10)
- non-invasive lipid measurement since blood containing lipids is to be measured, the present inventors examined a method for efficiently extracting information on blood. In order to obtain blood information, it is also conceivable to measure blood absorption. However, in this case, by using the absorption wavelength of hemoglobin or the like, there is a concern about using a different wavelength from that of lipid measurement and the increase in size of the device accompanying it, and in this embodiment, a different method is used.
- static parameters including the effects of all the factors that cause light attenuation of the skin layer, blood layer, and muscle layer included in the optical path, and dynamic parameters indicating blood information
- the static parameters are instantaneous measurement data and do not consider the time axis.
- the coefficient of variation CV was 1.5% or more and sometimes about 30% at the wrist.
- the coefficient of variation CV was 1.5% or less.
- the coefficient of variation CV was 1.5% or less, but the scattering coefficient was low and detection of lipid fluctuation was difficult.
- the fasting scattering coefficient ⁇ s ' is also the same. If the value of the scattering coefficient ⁇ s' is too low, it does not contain the blood necessary for blood measurement, and if it is too large, the lipid efficiently due to the influence of blood cells and skin color. I can not measure. It is assumed that the influence of the scattering coefficient is disturbed at ⁇ a >> ⁇ s ′, because the light attenuation depends on two parameters of ⁇ s ′ and ⁇ a, as shown in Equation 3. Therefore, ⁇ a may be measured by another method or the like.
- the range of the scattering coefficient ⁇ s 'and the variation coefficient CV capable of measuring the lipid concentration change is the range of the scattering coefficient ⁇ s' of 0.4 to 0.53 and the variation coefficient CV of 0.1% to 5.0% (see “ ⁇ in FIG. Region, and preferably has a scattering coefficient ⁇ s ′ of 0.41 or more and 0.51 or less, and a variation coefficient CV of 0.2% or more and 1.5% or less (a region indicated by “o” in FIG. 11). More preferably, the scattering coefficient ⁇ s ′ is in the range of 0.42 or more and 0.46 or less, and the variation coefficient CV is in the range of 0.5% or more and 1.0% or less (region indicated by “ ⁇ ” in FIG. 11).
- the range is about 95%, and in general applications, this range may be expanded, or in medical applications, the accuracy may be further improved.
- FIG. 12 the result of having measured the site
- FIG. 12 it is possible to find out a part suitable for lipid measurement by measuring a part where the scattering coefficient ⁇ s ′ and the variation coefficient CV approximate to each other.
- CV measurement is also assumed to depend on the performance of the apparatus, such as detection sensitivity, sampling rate, bit depth, etc., it is desirable to obtain an optimal CV value for each specification of the apparatus.
- the range of the mean value of blood flow and the variation coefficient of blood flow that can measure changes in lipid concentration is 3.1 mL / min or more and 21.0 mL / min or less, and the variation coefficient of blood flow is 5% or more
- the range is 50% or less (region indicated by “ ⁇ ” in FIG. 13), and preferably, the average value of blood flow is 5.1 mL / min or more and 15.0 mL / min or less, and the coefficient of variation of blood flow is 15 % Or more and 40% or less (area indicated by “o” in FIG.
- the average value of blood flow is 5.1 mL / min or more and 13.0 mL / min or less, and the coefficient of variation of blood flow Is a range of 10% or more and 30% or less (a region indicated by “ ⁇ ” in FIG. 13).
- These measurement conditions can be determined by measuring for about 10 seconds, and can be notified by a signal such as buzzer sounding, vibrating or lighting a lamp on the apparatus side.
- the above techniques can also be used to locate veins and arteries.
- the light source may be not only the LED or LD but also sunlight or room light.
- the measurement site may be shielded from light, irradiation with an optical fiber or the like, or a pinhole may be opened in the light shielding portion. Also in this case, the position of the vein or artery can be estimated from the light attenuation.
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Abstract
Description
(数式1)
μs’=R(ρ1) / R(ρ2)
(数式2)
μs’=R(ρ1) - R(ρ2)
2 照射部
3 光強度検出部
4 制御部
5 通知部
Claims (17)
- 生体外から生体内に向けて、生体の所定の部位に所定の光強度で光を照射する照射部と、
前記照射部による光の照射位置から所定間隔をあけて、あるいは、連続的に配置されて、前記生体から放出される1以上の位置の光強度を検出する光強度検出部と、
前記光強度検出部により検出された前記光強度に基づき、生体内における静的パラメータを算出し、
前記静的パラメータの時間変化に基づき、血液の動きの指標である動的パラメータを算出し、
前記静的パラメータ及び前記動的パラメータから、脂質計測に適した生体の部位を判定する、制御部と、
を、有する脂質計測装置。 - 前記脂質計測に適した生体の部位は、静脈、あるいは、毛細血管が存在する表層部である皮膚層、である請求項1に記載の脂質計測装置。
- 前記制御部は、
前記光強度の計測時間を20sec以下とし、当該計測時間内における前記光強度の変化量から、前記動的パラメータを算出する、請求項1または2に記載の脂質計測装置。 - 前記静的パラメータは、散乱係数であり、
前記制御部は、
前記光強度検出部により検出された複数位置の光強度の比、又は、複数位置の光強度の差、に基づいて生体内における光の散乱係数を算出する請求項1から3のいずれかに記載の脂質計測装置。 - 前記動的パラメータは、変動係数であり、
前記制御部は、
前記散乱係数の所定の時間の変化から前記変動係数を算出する請求項4に記載の脂質計測装置。 - 前記制御部は、
前記散乱係数が0.40以上0.53以下、かつ、前記変動係数が0.1%以上5.0%以下の場合に、前記脂質計測に適した生体の部位と判定する請求項5に記載の脂質計測装置。 - 前記制御部は、
前記散乱係数が0.41以上0.51以下、かつ、前記変動係数が0.2%以上1.5%以下の場合に、前記脂質計測に適した生体の部位と判定する請求項5に記載の脂質計測装置。 - 前記制御部は、
前記散乱係数が0.42以上0.46以下、かつ、前記変動係数が0.5%以上1.0%以下の場合に、前記脂質計測に適した生体の部位と判定する請求項5に記載の脂質計測装置。 - 前記所定の時間は、10msec以上20sec以下である請求項5から8のいずれかに記載の脂質計測装置。
- 前記静的パラメータは、血流量の平均値であり、
前記制御部は、
前記光強度検出部により検出された光強度に基づいて生体内における血流量の平均値を算出する請求項1から3のいずれかに記載の脂質計測装置。 - 前記動的パラメータは、血流量の変動係数であり、
前記制御部は、
前記血流量の平均値の時間変化から前記血流量の変動係数を算出する請求項10に記載の脂質計測装置。 - 前記制御部は、
前記血流量の平均値が3.1mL/min以上21.0mL/min以下、かつ、前記血流量の変動係数が5%以上50%以下の場合に、前記脂質計測に適した生体の部位と判定する請求項11に記載の脂質計測装置。 - 前記制御部は、
前記血流量の平均値が5.1mL/min以上15.0mL/min以下、かつ、前記血流量の変動係数が15%以上40%以下の場合に、前記脂質計測に適した生体の部位と判定する請求項11に記載の脂質計測装置。 - 前記制御部は、
前記血流量の平均値が5.1mL/min以上13.0mL/min以下、かつ、前記血流量の変動係数が10%以上30%以下の場合に、前記脂質計測に適した生体の部位と判定する請求項11に記載の脂質計測装置。 - 前記動的パラメータは、標準偏差や、ブラウン運動や、自己相関関数や、周波数解析や、スペックルや、ドップラーシフトや、レイノルズ数や、血流量や、血液量や、脈動幅を用いて分析した、血液の動きを計測する指標である請求項1から3のいずれかに記載の脂質計測装置。
- 生体外から生体内に向けて、生体の所定の部位に所定の光強度で光を照射する照射部と、前記照射部による光の照射位置から所定間隔をあけて、あるいは、連続的に配置されて、前記生体から放出される1以上の位置の光強度を検出する光強度検出部と、を有する脂質計測装置のコンピュータが、
前記光強度検出部により検出された前記光強度に基づき、生体内における静的パラメータを算出する処理と、
前記静的パラメータの時間変化に基づき、血液の動きの指標である動的パラメータを算出する処理と、
前記静的パラメータ及び前記動的パラメータから、脂質計測に適した生体の部位を判定する処理と、
を行う脂質計測方法。 - 生体外から生体内に向けて、生体の所定の部位に所定の光強度で光を照射する照射部と、
前記照射部による光の照射位置から所定間隔をあけて、あるいは、連続的に配置されて、前記生体から放出される1以上の位置の光強度を検出する光強度検出部と、を有するユーザ装置に接続した脂質計測装置であって、
前記光強度検出部により検出された前記光強度に基づき、生体内における静的パラメータを算出し、
前記静的パラメータの時間変化に基づき、血液の動きの指標である動的パラメータを算出し、
前記静的パラメータ及び前記動的パラメータから、脂質計測に適した生体の部位を判定する、制御部を有する脂質計測装置。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010264126A (ja) * | 2009-05-15 | 2010-11-25 | Konica Minolta Sensing Inc | 生体情報測定装置 |
WO2014087825A1 (ja) | 2012-12-06 | 2014-06-12 | 国立大学法人北海道大学 | 非侵襲型生体脂質濃度計測器、非侵襲型生体脂質代謝機能計測器、非侵襲による生体脂質濃度計測方法および非侵襲による生体脂質代謝機能検査方法 |
JP2015167790A (ja) * | 2014-03-10 | 2015-09-28 | 株式会社東芝 | 医用画像処理装置 |
JP2017532541A (ja) * | 2014-09-04 | 2017-11-02 | アールエスピー システムズ アクティーゼルスカブ | ラマン分光法による経皮インビボ測定方法および装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3660761B2 (ja) * | 1996-10-03 | 2005-06-15 | 技術研究組合医療福祉機器研究所 | 散乱体の吸収情報の計測方法及び装置 |
EP2371285B1 (en) * | 2003-07-22 | 2017-01-04 | Toshiba Medical Systems Corporation | Living body information measurement device |
AU2006241076B2 (en) * | 2005-04-25 | 2011-11-24 | University Of Massachusetts | Systems and methods for correcting optical reflectance measurements |
DE102005051030A1 (de) * | 2005-08-09 | 2007-02-15 | Flore, Ingo, Dr. | Medizinische Messvorrichtung |
JP5990905B2 (ja) * | 2011-12-19 | 2016-09-14 | ソニー株式会社 | 測定装置、測定方法、プログラム及び記録媒体 |
FR3046048B1 (fr) * | 2015-12-23 | 2020-03-27 | Bioserenity | Dispositif et procede pour la mesure de la concentration d'un compose present dans le sang |
JP5984074B1 (ja) * | 2016-02-18 | 2016-09-06 | メディカルフォトニクス株式会社 | 体調管理装置及びその方法 |
JP2017202267A (ja) * | 2016-05-14 | 2017-11-16 | キヤノン株式会社 | 情報取得装置、撮影装置及び情報取得方法 |
JP6029128B1 (ja) * | 2016-05-18 | 2016-11-24 | メディカルフォトニクス株式会社 | 血中脂質濃度計測装置及びその作動方法 |
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- 2017-12-20 CN CN201780097864.1A patent/CN111491561A/zh active Pending
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010264126A (ja) * | 2009-05-15 | 2010-11-25 | Konica Minolta Sensing Inc | 生体情報測定装置 |
WO2014087825A1 (ja) | 2012-12-06 | 2014-06-12 | 国立大学法人北海道大学 | 非侵襲型生体脂質濃度計測器、非侵襲型生体脂質代謝機能計測器、非侵襲による生体脂質濃度計測方法および非侵襲による生体脂質代謝機能検査方法 |
JP2015167790A (ja) * | 2014-03-10 | 2015-09-28 | 株式会社東芝 | 医用画像処理装置 |
JP2017532541A (ja) * | 2014-09-04 | 2017-11-02 | アールエスピー システムズ アクティーゼルスカブ | ラマン分光法による経皮インビボ測定方法および装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3730053A4 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021145375A1 (ja) * | 2020-01-17 | 2021-07-22 | メディカルフォトニクス株式会社 | 血中脂質濃度計測装置及びその方法 |
JP6991634B1 (ja) * | 2021-04-13 | 2022-01-12 | メディカルフォトニクス株式会社 | 脂質濃度計測装置、プログラム、及び、方法 |
WO2022220209A1 (ja) * | 2021-04-13 | 2022-10-20 | メディカルフォトニクス株式会社 | 脂質濃度計測装置、プログラム、及び、方法 |
Also Published As
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EP3730053A4 (en) | 2021-08-04 |
CN111491561A (zh) | 2020-08-04 |
JP6894089B2 (ja) | 2021-06-23 |
JPWO2019123559A1 (ja) | 2020-12-03 |
KR20200099545A (ko) | 2020-08-24 |
US20200359938A1 (en) | 2020-11-19 |
EP3730053A1 (en) | 2020-10-28 |
TW201927238A (zh) | 2019-07-16 |
TWI773713B (zh) | 2022-08-11 |
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