WO2022154019A1 - 電子機器 - Google Patents
電子機器 Download PDFInfo
- Publication number
- WO2022154019A1 WO2022154019A1 PCT/JP2022/000777 JP2022000777W WO2022154019A1 WO 2022154019 A1 WO2022154019 A1 WO 2022154019A1 JP 2022000777 W JP2022000777 W JP 2022000777W WO 2022154019 A1 WO2022154019 A1 WO 2022154019A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pulse wave
- electronic device
- subject
- index
- blood pressure
- Prior art date
Links
- 230000036772 blood pressure Effects 0.000 claims abstract description 145
- 210000004369 blood Anatomy 0.000 claims description 135
- 239000008280 blood Substances 0.000 claims description 135
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 102
- 239000008103 glucose Substances 0.000 claims description 102
- 235000012054 meals Nutrition 0.000 claims description 82
- 230000000291 postprandial effect Effects 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 29
- 210000002784 stomach Anatomy 0.000 claims description 5
- 238000012360 testing method Methods 0.000 description 100
- 238000001514 detection method Methods 0.000 description 51
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 42
- 230000010349 pulsation Effects 0.000 description 42
- 238000003860 storage Methods 0.000 description 29
- 210000000707 wrist Anatomy 0.000 description 29
- 230000033001 locomotion Effects 0.000 description 28
- 238000005259 measurement Methods 0.000 description 26
- 210000002321 radial artery Anatomy 0.000 description 20
- 238000004891 communication Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 18
- 230000004153 glucose metabolism Effects 0.000 description 15
- 239000000758 substrate Substances 0.000 description 15
- 235000005911 diet Nutrition 0.000 description 14
- 210000004204 blood vessel Anatomy 0.000 description 13
- 230000008859 change Effects 0.000 description 11
- 238000000611 regression analysis Methods 0.000 description 11
- 238000010801 machine learning Methods 0.000 description 10
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 9
- 238000003825 pressing Methods 0.000 description 9
- 230000037213 diet Effects 0.000 description 8
- 230000010365 information processing Effects 0.000 description 8
- 230000037356 lipid metabolism Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 210000003811 finger Anatomy 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000000378 dietary effect Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000036541 health Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 210000002559 ulnar artery Anatomy 0.000 description 5
- 241000282412 Homo Species 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 206010003210 Arteriosclerosis Diseases 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 210000003423 ankle Anatomy 0.000 description 3
- 208000011775 arteriosclerosis disease Diseases 0.000 description 3
- 238000013473 artificial intelligence Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 210000003813 thumb Anatomy 0.000 description 3
- HVCOBJNICQPDBP-UHFFFAOYSA-N 3-[3-[3,5-dihydroxy-6-methyl-4-(3,4,5-trihydroxy-6-methyloxan-2-yl)oxyoxan-2-yl]oxydecanoyloxy]decanoic acid;hydrate Chemical compound O.OC1C(OC(CC(=O)OC(CCCCCCC)CC(O)=O)CCCCCCC)OC(C)C(O)C1OC1C(O)C(O)C(O)C(C)O1 HVCOBJNICQPDBP-UHFFFAOYSA-N 0.000 description 2
- 206010005746 Blood pressure fluctuation Diseases 0.000 description 2
- 229930186217 Glycolipid Natural products 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000003287 bathing Methods 0.000 description 2
- 210000001772 blood platelet Anatomy 0.000 description 2
- 235000021152 breakfast Nutrition 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 206010012601 diabetes mellitus Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 210000003743 erythrocyte Anatomy 0.000 description 2
- 239000003562 lightweight material Substances 0.000 description 2
- 150000002632 lipids Chemical class 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 206010019345 Heat stroke Diseases 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 201000001421 hyperglycemia Diseases 0.000 description 1
- 230000002631 hypothermal effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 210000000265 leukocyte Anatomy 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035488 systolic blood pressure Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
- G16H50/20—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
-
- 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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02108—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics
- A61B5/02116—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics of pulse wave amplitude
-
- 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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02141—Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6824—Arm or wrist
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/7264—Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems
- A61B5/7267—Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems involving training the classification device
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
- G16H40/63—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
- G16H50/30—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for calculating health indices; for individual health risk assessment
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
- G16H40/67—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
Definitions
- This disclosure relates to electronic devices, control methods for electronic devices, and programs.
- Patent Document 1 discloses a sphygmomanometer that measures a change in blood pressure from a pulse wave of a subject.
- the electronic device is An electronic device that generates a learning model used to estimate a subject's blood pressure.
- a learning model showing the relationship between the blood pressure value and the pulse wave associated with the blood pressure value based on the human pulse wave index at the first time point and the pulse wave index at the second time point after the first time point. To generate.
- the electronic device is It is a learning model generated based on the index of the pulse wave of the human first time point and the index of the pulse wave of the second time point after the first time point, and is a pulse associated with the blood pressure value and the blood pressure value.
- a learning model that shows the relationship with waves Based on the pulse wave index acquired by the sensor and based on the pre-meal pulse wave of the subject and the pulse wave index at other timings, The blood pressure value of the subject is estimated.
- the control method of the electronic device is It is a learning model generated based on the index of the pulse wave of the human first time point and the index of the pulse wave of the second time point after the first time point, and is a pulse associated with the blood pressure value and the blood pressure value. Steps using a learning model that shows the relationship with waves, A step of estimating the blood pressure value of the subject based on the index of the pulse wave acquired by the sensor and the index of the pulse wave before meals of the subject and the index of the pulse wave at other timings. including.
- the program for electronic devices It is a learning model generated based on the index of the pulse wave of the human first time point and the index of the pulse wave of the second time point after the first time point, and is a pulse associated with the blood pressure value and the blood pressure value. Steps using a learning model that shows the relationship with waves, A step of estimating the blood pressure value of the subject based on the index of the pulse wave acquired by the sensor and the index of the pulse wave before meals of the subject and the index of the pulse wave at other timings. To be executed.
- An object of the present disclosure is to provide an electronic device, a control method for the electronic device, and a program capable of estimating the blood pressure of a subject with good accuracy. According to the present disclosure, it is possible to provide an electronic device, a control method for the electronic device, and a program capable of estimating the blood pressure of a subject with good accuracy.
- FIG. 1 is a diagram illustrating a usage mode of an electronic device according to an embodiment. That is, FIG. 1 is a diagram showing a state in which a subject is measuring biological information by an electronic device according to an embodiment.
- the electronic device 1 can measure the biological information of the subject by using a portion such as the wrist of the subject as the subject.
- the electronic device 1 is in contact with the test site on the left wrist of the test subject.
- the electronic device 1 is in a state of being in contact with the test portion, with the wrist portion on the way from the palm of the left hand of the subject toward the elbow side as the test site.
- the electronic device 1 can stand on a horizontal surface such as on a table or a desk in a state where it is not in contact with the test site of the test subject, for example, before measurement. ..
- the electronic device 1 includes a housing 10, a support portion 20, and a pedestal portion 80.
- the housing 10 may include a switch 13 or the like for turning on / off the power of the electronic device 1.
- the housing 10 includes a sensor 50 capable of detecting pulsation at the test site of the test subject.
- the support portion 20 includes a back surface portion 22, and this portion may be pressed by a subject or the like.
- the support portion 20 may include an extendable portion 24 as described later.
- the pedestal portion 80 supports the support portion 20 in an upright state. Each functional unit constituting the electronic device 1 will be described later.
- the positive direction of the Y-axis shown in FIG. 1 is also appropriately referred to as the "upward” direction.
- the negative direction of the Y-axis shown in FIG. 1 is also appropriately referred to as a “downward” direction. That is, the upward and downward directions shown in FIG. 1 may be substantially the same as the upward and downward directions seen from the viewpoint of the subject.
- the part of the electronic device 1 seen from the viewpoint facing the positive direction of the Z axis is referred to as the "back surface" of the electronic device 1. That is, in FIG. 1, the back surface of the electronic device 1 is a portion of the support portion 20 of the electronic device 1 in which the back surface portion 22 is viewed in a plan view. Further, in FIG. 1, the portion of the electronic device 1 seen from the viewpoint facing the negative direction of the Z axis is referred to as the “front” of the electronic device 1. That is, in FIG. 1, that is, in FIG. 1, the front surface of the electronic device 1 is a portion of the housing 10 of the electronic device 1 in which the surface of the electronic device 1 in contact with the test portion is viewed in a plan view.
- the subject may place the arm for measuring biological information (the left arm of the subject in the example shown in FIG. 1) on a stable table such as a table or a desk.
- the table or desk-like table described above may have, for example, a deck (top plate) parallel to the XZ plane shown in the figure (that is, perpendicular to the Y axis). That is, the subject may place the arm for measuring biological information on a table or the like having a top plate perpendicular to the Y axis shown in the figure.
- the palm of the hand (left hand shown in FIG. 1) for measuring the biological information of the subject faces the negative direction side of the Z axis shown in the figure, or is somewhat Y from the negative direction side of the Z axis. It may be oriented in the positive direction of the axis.
- the subject may place the electronic device 1 on a stable table such as a table or a desk so as to stand on its own.
- the bottom surface portion of the pedestal portion 80 may be placed on the deck (top plate) of a table such as the above-mentioned table or desk.
- the subject may bring the housing 10 of the electronic device 1 into contact with the test site so that the sensor 50 of the electronic device 1 is arranged at a position where the pulsation in the test site can be satisfactorily detected. ..
- the subject may bring the subject to be in contact with the housing 10 of the electronic device 1.
- the subject may use the hand that does not measure the biological information (the right hand of the subject in the example shown in FIG. 1) to position the electronic device 1.
- the subject uses the finger of the hand that does not measure biological information (the right hand of the subject in the example shown in FIG. 1), and the pedestal portion of the electronic device 1 is used.
- the 80 may be pressed against the deck (top plate) of a table or desk.
- the position of the electronic device 1 is fixed on the table or desk.
- the pedestal portion 80 of the electronic device 1 is pressed against the table or desk by the thumb and index finger of the subject's right hand. Further, the pedestal portion 80 is erected with the support portion 20 fixed. Therefore, as shown in FIG. 1, the electronic device 1 according to the embodiment measures the biological information of the subject in a state of being pressed down to the test site side.
- the fingers that the subject presses the pedestal portion 80 against the table or desk are not limited to the thumb and index finger of the right hand.
- the subject may press the pedestal portion 80 against the table or desk with fingers other than the thumb and index finger of the right hand.
- the subject presses against the table or desk is not limited to the pedestal portion 80 of the electronic device 1, and may be, for example, the support portion 20 or the like.
- the pedestal portion 80 or the support portion 20 of the electronic device 1 may be pressed in any manner as long as it is pressed against the table or desk with an appropriate pressing force.
- the pedestal 80 or support 20 of the electronic device 1 may be placed on a table or desk, as well as a table made of wood, iron, plastic, glass, rubber, resin, other materials, or any combination thereof.
- the electronic device 1 can detect the pulsation at the test site by being brought into contact with the test site of the test subject.
- the test site of the subject may be, for example, a site where the ulnar artery or the radial artery of the subject exists under the skin.
- the test site of the subject is not limited to the site where the ulnar artery or the radial artery of the subject exists under the skin, and may be any site as long as the pulsation of the subject can be detected. good.
- FIG. 1 shows a state in which the electronic device 1 is in contact with the test site, with the site where the radial artery is arranged under the skin of the subject's wrist as the test site.
- FIG. 2 is a diagram for explaining the test site of the test subject. More specifically, FIG. 2 shows an example in which the subject is searching for a place where pulsation can be well detected in his / her own test site before measuring biological information using the electronic device 1. Is shown. That is, FIG. 2 shows a state in which the subject uses the fingers of his / her right hand to search for a place where pulsation can be detected well in the test site of his / her left hand.
- the subject may have his / her left arm resting on a table or a table such as a desk, as in the case of FIG.
- the radial artery and muscle existing under the skin of the subject's arm are indicated by a broken line or a chain line.
- the subject may bring the housing 10 of the electronic device 1 into contact with the test site so that the sensor 50 of the electronic device 1 is arranged at a position where the pulsation can be detected well.
- the subject may search for a position where pulsation can be satisfactorily detected at his / her own test site before measuring biological information using the electronic device 1.
- the position where pulsation can be detected well near the wrist of the subject is the position where the radial artery runs under the skin, and the position where the radial styloid process exists under the skin or near it.
- the radial artery runs over the radial styloid
- the radial artery rests on the relatively hard radial styloid.
- the movement of the radial artery contracting due to pulsation is more likely to be transmitted to the side of the subject's skin, which is relatively soft, than to the side of the relatively hard radial styloid process. Therefore, when measuring the biological information of the subject using the electronic device 1 according to the embodiment, the above-mentioned position may be used as the test site.
- the subject finds a good pulsation around the wrist of his / her left hand, for example, at the position shown in the figure by the fingertip of his / her right hand.
- the subject may set the position where a good pulsation is found by the fingertip of his / her right hand as the test site.
- the subject may bring the housing 10 of the electronic device 1 into contact with the portion to be inspected.
- the pulsation of the radial artery may not be satisfactorily transmitted to the housing 10 (and the sensor 50) of the electronic device 1.
- the housing 10 of the electronic device 1 when the housing 10 of the electronic device 1 is brought into contact with the test site, the subject is pressed against the radial artery while avoiding muscles as much as possible. It may be arranged as follows. The portion of the housing 10 of the electronic device 1 that comes into contact with the test portion of the subject will be described later. Further, as shown in FIG. 1, when measuring the biological information of the subject using the electronic device 1, the subject may keep in mind a psychological state that relaxes the whole body, and the biological information is used. The palm of the measuring hand (for example, the left hand) may be slightly opened.
- FIGS. 3 and 4 are diagrams showing a state in which the electronic device 1 as shown in FIG. 1 is viewed from a viewpoint facing the negative direction of the X-axis. That is, FIGS. 3 and 4 are views showing the right side surface of the electronic device 1 as shown in FIG. 5 and 6 are views showing a state in which the electronic device 1 as shown in FIG. 1 is viewed from a viewpoint facing the negative direction of the Z axis. That is, FIGS. 5 and 6 are views showing the front surface of the electronic device 1 as shown in FIG.
- the electronic device 1 includes a housing 10, a support portion 20, and a pedestal portion 80.
- the housing 10 and the support portion 20 are connected via an elastic member as described later.
- the support portion 20 supports the housing 10 sideways of the support portion 20. That is, the housing 10 is supported on the side of the support portion 20.
- the pedestal portion 80 raises the support portion 20.
- the housing 10, the support 20, and / or the pedestal 80 may be formed of, for example, a material such as ceramic, iron or other metal, resin, plastic or aluminum.
- the housing 10, the support 20, and / or the pedestal 80 may be made of a hard and lightweight material.
- the material of the housing 10, the support portion 20, and / or the pedestal portion 80 is not particularly limited, but may have enough strength to function as a measuring device. Further, the material of the housing 10, the support portion 20, and / or the pedestal portion 80 may be relatively lightweight rather than excessively heavy.
- the size of the housing 10, the support portion 20, and the pedestal portion 80 of the electronic device 1 is not particularly limited, but may be relatively small in consideration of convenience of carrying and / or ease of measurement.
- the entire electronic device 1 may be of a size that is included in a cube or a rectangular cuboid having a side of about 7 cm, for example.
- the overall size of the electronic device 1 may be larger or smaller than the size described above.
- the shapes of the housing 10, the support portion 20, the pedestal portion 80, and the like of the electronic device 1 are not limited to the shapes as shown in the figure, and the functionality and / or design as a measuring device is not limited. Various shapes may be used in consideration of various shapes.
- the pedestal portion 80 raises the support portion 20. Therefore, the pedestal portion 80 may be shaped so as to have a bottom area sufficient to allow the electronic device 1 including the housing 10 and the support portion 20 to stand upright. Further, the pedestal portion 80 may have a bottom area sufficient for the electronic device 1 to stand on the horizontal plane.
- the housing 10 and the support portion 20 can move freely with each other to some extent. That is, in the electronic device 1, the support portion 20 can move freely to some extent even when the housing 10 is fixed. Further, in the electronic device 1, the housing 10 can move freely to some extent even when the support portion 20 is fixed. For example, as shown in FIGS. 3 and 4, in the electronic device 1, the housing 10 can move freely to some extent in the direction of the arrow DU and / or the arrow DL shown in the figure.
- the support portion 20 of the electronic device 1 may include, for example, an extension portion 24 inside the support portion 20.
- the extendable portion 24 is configured to be extendable from the support portion 20.
- 3 and 5 show a state in which the extension portion 24 is not extended from the support portion 20.
- FIGS. 4 and 6 show a state in which the extension portion 24 is extended from the support portion 20. That is, when the extension portion 24 is extended in the direction of the arrow E1 in FIGS. 3 and 5, the extension portion 24 can be extended so as to extend from the support portion 20 as shown in FIGS. 4 and 6.
- the extension portion 24 when the extension portion 24 is contracted in the direction of the arrow E2 in FIGS. 4 and 6, the extension portion 24 can be returned to the original position as shown in FIGS. 3 and 5.
- the length of the support portion 20 in the vertical direction may be adjusted by extending or contracting the extension portion 24.
- the position of the housing 10 in the vertical direction (height direction) can be adjusted. Therefore, even if there are some individual differences in the thickness of the left wrist of the subject as shown in FIG. 1, the housing 10 is examined according to the vertical position of the subject's examination site. The position of contact with the test site of the person can be adjusted.
- the support portion 20 is configured to be expandable or contractible in a predetermined direction as shown by the arrows E1 and / or the arrow E2, whereby the height of the housing 10 is increased.
- the position in the vertical direction may be adjustable.
- the extension portion 24 may be configured to be steplessly extendable from the support portion 20. That is, the extension portion 24 may be configured so as to be able to be positioned at an arbitrary position, for example, up to a predetermined length. With this configuration, even if there are individual differences in the thickness of the wrist including the test site of the subject, the position where the housing 10 abuts on the test site of the subject in the electronic device 1 can be finely divided. Can be adjusted.
- the extension portion 24 may be configured to be extendable stepwise from the support portion 20. That is, the extension portion 24 may be configured to include a mechanism that facilitates positioning at a plurality of predetermined predetermined positions, for example, up to a predetermined length.
- the extension portion 24 may include a mechanism such as a multi-stage stay that is locked in multiple stages when expanding and contracting from the support portion 20.
- the support portion 20 is provided with, for example, an extension portion 24, so that the support portion 20 can be gradually extended or contracted in a predetermined direction such as the arrow E1 and / or the arrow E2. It may be configured in.
- the housing 10 of the electronic device 1 may include a first contact portion 11 as a portion to be brought into contact with the test portion of the subject.
- the first contact portion 11 may be installed on the side to be inspected of the housing 10.
- the first contact portion 11 may function as a member such as a pulse contact portion.
- the housing 10 of the electronic device 1 includes a second contact portion 12 as a portion to be brought into contact with the test portion of the subject or the vicinity of the test portion. You may.
- the second contact portion 12 may be brought into contact with the vicinity of the position where the first contact portion 11 abuts at the test portion of the subject.
- the second contact portion 12 may also be installed on the test site side (wrist side of the test subject) of the housing 10.
- the first contact portion 11 is a member that appropriately contacts the test site of the subject when measuring the biological information of the subject by the electronic device 1. Therefore, the first contact portion 11 may be sized so as to appropriately contact the site where the ulnar artery or radial artery of the subject exists under the skin, for example.
- the width of the first contact portion 11 in the X-axis direction or the Y-axis direction may be about 1 cm to 1.5 cm. Further, the width of the first contact portion 11 in the X-axis direction or the Y-axis direction may be other than about 1 cm to 1.5 cm.
- the first contact portion 11 and the second contact portion 12 may be formed of, for example, a material such as ceramic, iron or other metal, resin, plastic or aluminum.
- the first contact portion 11 and the second contact portion 12 may be formed of a hard and lightweight material.
- the materials of the first contact portion 11 and the second contact portion 12 are not particularly limited.
- the materials of the first contact portion 11 and the second contact portion 12 have strength enough to function as a measuring device and are relatively lightweight, like the housing 10 and / or the support portion 20. good.
- the housing 10 of the electronic device 1 may include a switch 13.
- the switch 13 may be, for example, a switch for switching the power on / off of the electronic device 1.
- the switch 13 may be, for example, a switch that causes the electronic device 1 to start the measurement of biological information.
- 3 to 6 show an example in which the switch 13 is composed of a slide switch.
- the switch 13 may be configured by any switch, such as a push button switch.
- the switch 13 is composed of a push button switch
- various operations of the electronic device 1 may be associated with each other based on the number of times the switch 13 is pressed and / or the time during which the switch 13 is pressed.
- the location where the switch 13 is arranged is not limited to the examples shown in FIGS. 3 to 6, and may be arranged at any location.
- the switch 13 may be arranged on the support portion 20.
- FIG. 7 shows a state when the subject measures biological information by the electronic device 1.
- FIG. 7 is a view showing a state in which the electronic device 1 shown in FIG. 1 is viewed from the side together with a cross section of the wrist of the subject. That is, FIG. 7 is a diagram showing a state in which the electronic device 1 as shown in FIG. 1 is viewed from a viewpoint facing the negative direction of the X-axis, together with a cross section of the wrist of the subject.
- the subject's left wrist is placed on the upper surface of the deck (top plate) 100 of a table or desk.
- the deck (top plate) 100 of a table or desk or the like is also simply referred to as “horizontal plane 100”.
- the horizontal plane 100 may be a horizontal surface, but may be not only a strictly horizontal surface but also a substantially horizontal surface.
- the electronic device 1 is self-supporting on the horizontal plane 100 so that the lower end, that is, the bottom surface of the pedestal portion 80 on which the support portion 20 stands up is in contact with the horizontal plane 100. That is, in the electronic device 1 according to the embodiment, the pedestal portion 80 may erect the support portion 20.
- the pedestal portion 80 may be configured to erect the support portion 20 so that the electronic device 1 stands on the horizontal plane 100.
- the example shown in FIG. 7 shows a state in which the extension portion 24 is somewhat extended in the support portion 20 of the electronic device 1.
- the electronic device 1 can start the measurement of biological information in a state where the pedestal portion 80 (or the support portion 20) is pressed against the horizontal plane 100 by the right hand of the subject or the like.
- the electronic device 1 may be used without the bottom surface of the pedestal portion 80 touching the upper surface of the horizontal plane 100 (that is, in a state of floating from the horizontal plane 100).
- the electronic device 1 may start the measurement of biological information by pressing the electronic device 1 in the direction of the arrow P shown in FIG. 7 by, for example, the right hand of the subject.
- the first contact portion 11 may come into direct or indirect contact with the test site of the subject. Further, as shown in FIG. 7, the second contact portion 12 may directly or indirectly contact the vicinity of the portion where the first contact portion 11 is in contact with the test portion of the subject. .. As shown in FIG. 7, the surface including the test site on the wrist of a general subject has a curved shape. Therefore, if the lengths of the first contact portion 11 and the second contact portion 12 in the Z-axis direction are the same in the housing 10, the second contact portion 12 is in contact with the wrist of the subject. , The first contact portion 11 may be in a state of floating from the wrist (examination site) of the subject. Therefore, in one embodiment, as shown in FIG.
- the length of the first contact portion 11 in the Z-axis direction may be longer than the length of the second contact portion in the Z-axis direction.
- the first contact portion 11 may protrude from the housing 10 with respect to the second contact portion 12 in the Z-axis direction shown in FIG. 7, for example. That is, the length of the first contact portion 11 protruding from the housing 10 in the positive direction of the Z axis may be larger than the length of the second contact portion 12 protruding from the housing 10 in the positive direction of the Z axis. ..
- the shape of the first contact portion 11 is not limited to the shape shown in FIGS. 3 to 7, and may be any shape capable of appropriately contacting the test site of the subject.
- the shape of the second contact portion 12 is not limited to the shape shown in FIGS. 3 to 7, and is appropriately applied to a part of the wrist of the subject (for example, the portion S shown in FIG. 7). It may have any shape that can be brought into contact with it.
- the support portion 20 of the electronic device 1 may include a back portion 22.
- the back surface portion 22 may be a portion of the electronic device 1 that is pressed by the fingertips of the subject or the like. That is, the subject or the like can measure the biological information by the electronic device 1 by pressing the back surface portion 22 with a fingertip or the like even if the pedestal portion 80 or the support portion 20 is not pressed against the horizontal plane 100. can.
- the back surface portion 22 may be formed on the back surface (the surface facing the negative direction side of the Z axis) side of the support portion 20. In the example shown in FIG. 7, the back surface portion 22 is formed at a position slightly upward (Y-axis positive direction) from the center of the support portion 20.
- the back surface portion 22 may be formed at various positions depending on the mode in which the electronic device 1 measures biological information, for example, the back surface portion 22 is formed substantially in the center of the support portion 20.
- the back surface portion 22 is shown as a shallow recess formed in the support portion 20.
- the shape of the back surface portion 22 is not limited to the shallow recess.
- the back surface portion 22 may be formed as a shallow convex portion formed on the support portion 20 or the like.
- the back surface portion 22 may be, for example, a simple mark painted on the support portion 20 with a paint or the like.
- the back surface portion 22 may be arbitrarily configured as long as it indicates a portion of the electronic device 1 that is pressed by the fingertips of the subject or the like.
- the first contact portion 11 is brought into contact with the test portion such as the wrist of the subject, and the pedestal portion 80 or the support portion 20 is pressed against the horizontal plane 100 by the fingertips of the subject or the like.
- the first contact portion 11 may be positioned so as to come into contact with the test portion of the subject.
- the first contact portion 11 may be positioned so as to abut, for example, the site where the ulnar artery or the radial artery of the subject is subcutaneously present. That is, the test site where the electronic device 1 according to the embodiment measures the biological information of the test subject may be, for example, a position where the radial artery or the ulnar artery of the test subject flows subcutaneously.
- FIG. 8 and 9 are views showing a cross section of the electronic device 1 together with a cross section of the wrist of the subject.
- FIG. 8 is a diagram showing a cross section of the electronic device 1 shown in FIG. 7 together with a cross section of the wrist of the subject.
- FIG. 9 is a cross-sectional view showing a state in which a force in the direction of the arrow P shown in the figure is applied to the support portion 20 of the electronic device 1 shown in FIG. 8 when the pedestal portion 80 is pressed (fixed) to the horizontal plane 100.
- the force in the direction of the arrow P may be a reaction of the force of the subject to be examined pressing the electronic device 1 (housing 10).
- the electronic device 1 includes a housing 10, a support portion 20, and a pedestal portion 80 in appearance. Further, as described above, the housing 10 includes a first contact portion 11 and a second contact portion 12. Further, the support portion 20 may include a back surface portion 22 and an extension portion 24.
- the housing 10 of the electronic device 1 may be provided with the substrate 30 as shown in FIGS. 8 and 9.
- the substrate 30 may be a general circuit board on which various electronic components and the like can be arranged.
- the housing 10 of the electronic device 1 may include a substrate 30.
- Various electronic components may be arranged on the Z-axis negative positive side surface of the substrate 30.
- a notification unit 40, a sensor 50, a control unit 52, a storage unit 54, and a communication unit 56 are arranged on the Z-axis negative positive side surface of the substrate 30.
- the above-mentioned switch 13 and the like may also be arranged on the substrate 30.
- the notification unit 40 notifies the subject or the like of information such as a measurement result of biological information.
- the notification unit 40 may be, for example, a light emitting unit using a light emitting diode (LED) or the like.
- the notification unit 40 may be a display device such as a liquid crystal display (LCD: Liquid Crystal Display), an organic EL display (OELD: Organic Electro-Luminescence Display), or an inorganic EL display (IELD: Inorganic Electro-Luminescence Display). .. If a display device such as these is adopted as the notification unit 40, it is possible to display relatively detailed information such as, for example, the state of glucose metabolism or lipid metabolism of the subject.
- the notification unit 40 notifies the subject not only information such as the measurement result of the biological information but also information such as, for example, whether the power of the electronic device 1 is turned on / off or whether the biological information is being measured. You may. At this time, the notification unit 40 turns on / off the power supply of the electronic device 1 or whether or not the biological information is being measured by emitting light in a mode different from that when notifying the information such as the measurement result of the biological information. Information such as may be notified.
- the notification unit 40 does not have to be composed of a light emitting unit.
- the notification unit 40 may be configured by a sound output unit such as a speaker or a buzzer.
- the notification unit 40 may notify the subject or the like of information such as a measurement result of biological information by various sounds or voices.
- the notification unit 40 may be configured by a tactile presentation unit such as a vibrator or a piezoelectric element.
- the notification unit 40 may notify the subject or the like of information such as a measurement result of biological information by various vibrations or tactile feedback.
- the sensor 50 includes, for example, an angular velocity sensor, detects pulsations from the test site, and acquires pulse waves.
- the sensor 50 may detect the displacement of the first contact portion 11 (pulse contact portion) based on the pulse wave of the subject.
- the sensor 50 may be, for example, an acceleration sensor or a sensor such as a gyro sensor. Further, the sensor 50 may be an angular velocity sensor. The sensor 50 will be further described later.
- the sensor 50 is fixed to the substrate 30. Further, the substrate 30 is fixed inside the housing 10. Further, the first contact portion 11 is fixed to the outside of the housing 10. Therefore, the movement of the first contact portion 11 is transmitted to the sensor 50 via the housing 10 and the substrate 30. Therefore, the sensor 50 can detect the pulsation at the test site of the test subject via the first contact portion 11, the housing 10, and the substrate 30.
- the senor 50 is arranged in a state of being built in the housing 10. However, in one embodiment, the sensor 50 does not have to be built into the housing 10 as a whole. In one embodiment, the sensor 50 may be included in at least a part of the housing 10. The sensor 50 may have an arbitrary configuration in which at least any movement of the first contact portion 11, the housing 10, and the substrate 30 is transmitted.
- the control unit 52 is a processor that controls and manages the entire electronic device 1 including each functional block of the electronic device 1. Further, the control unit 52 is a processor that calculates an index based on the propagation phenomenon of the pulse wave from the acquired pulse wave.
- the control unit 52 is composed of a processor such as a CPU (Central Processing Unit) that executes a program that defines a control procedure and a program that calculates an index based on a pulse wave propagation phenomenon.
- a program includes, for example, a storage unit 54 or the like. It is stored in the storage medium.
- the control unit 52 estimates the state of the subject regarding glucose metabolism, lipid metabolism, and the like based on the calculated index.
- the control unit 52 may notify the data to the notification unit 40.
- the storage unit 54 stores programs and data.
- the storage unit 54 may include any non-transitory storage medium such as a semiconductor storage medium and a magnetic storage medium.
- the storage unit 54 may include a plurality of types of storage media.
- the storage unit 54 may include a combination of a portable storage medium such as a memory card, an optical disk, or a magneto-optical disk, and a reading device for the storage medium.
- the storage unit 54 may include a storage device used as a temporary storage area such as a RAM (Random Access Memory).
- the storage unit 54 stores various information and / or a program for operating the electronic device 1, and also functions as a work memory.
- the storage unit 54 may store, for example, the measurement result of the pulse wave acquired by the sensor 50.
- the communication unit 56 transmits and receives various data by performing wired communication or wireless communication with an external device.
- the communication unit 56 communicates with an external device that stores the biological information of the subject in order to manage the health condition, and the measurement result of the pulse wave measured by the electronic device 1 and / or the electronic device 1 estimates.
- the health condition is transmitted to the external device.
- the communication unit 56 may be a communication module compatible with, for example, Bluetooth (registered trademark) or Wi-Fi.
- the battery 60 may be arranged on the surface of the substrate 30 on the negative side of the Z axis.
- a battery holder for fixing the battery 60 may be arranged on the surface of the substrate 30 on the negative side of the Z axis.
- the battery 60 may be an arbitrary power source such as a button type battery (coin type battery) such as CR2032. Further, the battery 60 may be, for example, a rechargeable storage battery.
- the battery 60 may be appropriately provided with, for example, a lithium ion battery and a control circuit for charging and discharging the lithium ion battery.
- the battery 60 may supply electric power to each functional unit of the electronic device 1.
- the arrangement of the notification unit 40, the sensor 50, the control unit 52, the storage unit 54, the communication unit 56, and the battery 60 is not limited to the examples shown in FIGS. 8 and 9.
- the above-mentioned functional unit may be arranged at an arbitrary position on the substrate 30. Further, the above-mentioned functional unit may be appropriately arranged on either side of the substrate 30.
- the electronic device 1 is connected to an external device by wire or wirelessly, at least a part of functional units such as a switch 13, a notification unit 40, a control unit 52, a storage unit 54, and a communication unit 56 is appropriately used. It may be provided for an external device.
- the end of the housing 10 on the negative side of the Z axis is connected to the end of the support 20 on the positive side of the Z axis.
- the housing 10 has a connecting portion connected to the support portion 20 on the negative side of the Z axis.
- the support portion 20 has an opening on the positive direction side of the Z axis into which the connecting portion of the housing 10 is inserted.
- the connection portion of the housing 10 is made smaller than the opening of the support portion 20, and the connection portion of the housing 10 is inserted into the opening of the support portion 20. be.
- the housing 10 may have an opening and the support 20 may have an insertion portion.
- the opening of the housing 10 may be made larger than the insertion portion of the support portion 20, and the insertion portion of the support portion 20 may be inserted into the opening of the housing 10.
- the housing 10 and the support portion 20 may be configured so that they can move freely to some extent without interfering with each other.
- the housing 10 and the support portion 20 are connected to each other by an elastic member 70.
- the housing 10 and the support portion 20 are directly connected by an elastic member 70.
- the elastic member 70 may indirectly connect, for example, the housing 10 and the support portion 20.
- the elastic member 70 may connect an arbitrary member on the housing 10 side and an arbitrary member on the support portion 20 side to each other.
- the elastic member 70 may be an elastic member that can be deformed along at least one of three axes (for example, Y-axis, Y-axis, and Z-axis) that are orthogonal to each other.
- the elastic member 70 is a member that can be deformed in three dimensions.
- the elastic member 70 is a spring such as a compression coil spring.
- the elastic member 70 may be composed of any elastic body having appropriate elasticity, such as a spring, a resin, a sponge, or a silicon sheet, or any combination thereof. It may be used as a spring.
- the elastic member 70 may be formed of, for example, a silicon sheet having a predetermined elasticity and a predetermined thickness.
- FIG. 8 shows a state in which a force in the direction of the arrow P is not applied (or the force is very weak) to the support portion 20. That is, FIG. 8 shows a state in which the support portion 20 is not (almost) pressed toward the test site side.
- FIG. 9 shows a state in which a force in the direction of the arrow P is applied to the support portion 20. That is, FIG. 9 shows a state in which the support portion 20 is pressed toward the test site side. Since the elastic member 70 is deformed by such a pressing force, the length of the elastic member 70 shown in FIG. 9 in the Z-axis direction is shorter than the length of the elastic member 70 shown in FIG. 8 in the Z-axis direction.
- the force in the direction of the arrow P shown in FIG. 8 or 9 may be a force generated when the pedestal portion 80 or the support portion 20 is pressed (fixed) on the horizontal plane 100 by a subject or the like. Further, the force in the direction of the arrow P shown in FIG. 8 or 9 causes the subject to place the test site on the electronic device 1 (such as the housing 10 or the first contact portion 11 or the second contact portion 12). It may be a reaction of the pressing force.
- the electronic device 1 is provided with a stopper mechanism so that the housing 10 and the support portion 20 are not displaced to a distance of a predetermined length or more. That is, the electronic device 1 shown in FIG. 8 is provided with a mechanism that prevents the housing 10 from coming off or falling off from the support portion 20 even when the housing 10 is not pressed in the direction of the arrow P shown in the figure.
- FIG. 8 shows a state in which the distance between the housing 10 and the support portion 20 is fixed while the restoring force of the elastic member 70 is maintained to some extent. In this situation, the distance between the housing 10 and the support portion 20 is not displaced to a distance longer than that.
- the elastic member 70 is assumed to be a spring such as a compression coil spring.
- the elastic member 70 may be made of a silicon seed having a predetermined thickness or the like.
- the housing 10 and the support portion 20 and the elastic member 70 may be adhered with an adhesive or double-sided tape.
- the adhesion between the elastic member 70 and another member may be made so that the influence on the deformation of the elastic member 70 is reduced. That is, even if the elastic member 70 and another member are adhered to each other, the elastic member 70 may be configured so as to be appropriately deformable.
- the electronic device 1 includes a housing 10, a support portion 20, a sensor 50, an elastic member 70, and a pedestal portion 80.
- the housing 10 includes the sensor 50 at least in part.
- the sensor 50 is configured to be able to detect pulsations at the test site of the test subject.
- the support portion 20 is configured to support the housing 10 sideways of the support portion 20.
- the elastic member 70 is interposed between the housing 10 and the support portion 20.
- the pedestal portion 80 is configured to erect the support portion 20. The pedestal portion 80 may erect the support portion 20 so that the electronic device 1 stands on the horizontal plane.
- the first contact portion 11 of the housing 10 is the test portion of the subject, that is, the test portion. Can contact the skin on the subject's radial artery. Further, as shown in FIGS. 8 and 9, the housing 10 is supported on the side of the support portion 20. Then, when the pedestal portion 80 or the support portion 20 is pressed against the horizontal plane 100 by the subject or the like, the positions of the pedestal portion 80 and the support portion 20 on the horizontal plane 100 are fixed.
- the pedestal portion 80 and the support portion 20 are moved to the test site side, that is, A force reaction occurs in the direction of the arrow P. Further, due to the elastic force of the elastic body 140 arranged between the support portion 20 in which the force is applied in the direction of the arrow P and the housing 10 including the sensor 50 (along with the housing 10 and the first contact portion 11). The sensor 50 is urged toward the test site side of the test subject. Further, the first contact portion 11 urged by the elastic force of the elastic member 70 is in contact with the skin on the radial artery of the subject.
- the first contact portion 11 is displaced according to the movement of the radial artery of the subject, that is, the pulsation. Therefore, the sensor 50 interlocked with the first contact portion 11 is also displaced according to the movement of the radial artery of the subject, that is, the pulsation.
- the housing 10 is centered on the axis S in the direction shown by the arrow DU or the arrow DL. Can be displaced to.
- the shaft S may be a portion where the second contact portion 12 of the housing 10 is in contact with the wrist of the subject.
- the sensor 50 interlocked with the first contact portion 11 is coupled to the support portion 20 via the elastic member 70. Therefore, the sensor 50 is given a range of motion that is free to some extent due to the flexibility of the elastic member 70. Further, the flexibility of the elastic member 70 makes it difficult for the movement of the sensor 50 to be hindered. Further, the elastic member 70 has an appropriate elasticity, so that the elastic member 70 deforms following the pulsation at the test site of the test subject. Therefore, in the electronic device 1 according to the present embodiment, the sensor 50 can sensitively detect the pulsation at the test site of the test subject. Further, the electronic device 1 according to the present embodiment can be displaced following the pulse wave to eliminate the congestion of the subject and eliminate the pain.
- the elastic member 70 may be deformable according to the pulsation at the test site of the test subject. Further, the elastic member 70 may be elastically deformed to such an extent that the sensor 50 can detect the pulsation at the test site of the test subject.
- the electronic device 1 according to the embodiment can function as a small and lightweight measuring device.
- the electronic device 1 according to the embodiment is not only excellent in portability, but also can measure the biological information of the subject extremely easily.
- the electronic device 1 according to the embodiment can maintain an independent posture before measurement or the like. Therefore, the subject can be easily positioned when the portion to be examined is brought into contact with the first contact portion 11. Further, according to the electronic device 1 according to the embodiment, it is sufficient that the pedestal portion 80 or the support portion 20 is pressed downward during the measurement. Therefore, the subject does not need to fine-tune the force for pressing the pedestal portion 80 or the support portion 20 during the measurement. Therefore, the electronic device 1 according to the embodiment can measure the biological information of the subject relatively stably. Further, the electronic device 1 according to the embodiment can measure biological information by itself without linking with other external devices or the like. Further, in this case, it is not necessary to form an accessory such as another cable. Therefore, according to the electronic device 1 according to the embodiment, convenience can be enhanced.
- the electronic device 1 may include a mechanism such as a stopper between the housing 10 and the support portion 20.
- 8 and 9 show, for example, a configuration in which the housing 10 includes a protrusion 14 and the support 20 includes a receiving portion 26. That is, the housing 10 includes a protruding portion 14 in a part of the connecting portion connected to the support portion 20. Further, the support portion 20 includes a receiving portion 26 that can receive the protruding portion 14 in a part of the opening into which the connecting portion of the housing 10 is inserted.
- stoppers (14, 26) are collectively referred to as “stoppers (14, 26)”.
- stoppers (14, 26) are formed only in the insertion portion of the housing 10 to which the housing 10 and the support portion 20 are connected and a part of the opening of the support portion 20.
- stoppers (14, 26) are formed only at the lower end of the portion where the housing 10 and the support portion 20 are connected.
- stoppers (14, 26) are not formed at the upper end of the portion where the housing 10 and the support portion 20 are connected. In one embodiment, not only the upper end of the portion where the housing 10 and the support portion 20 are connected but also the portion other than the lower end of the portion where the housing 10 and the support portion 20 are connected are covered with stoppers (14, 26). ) May not be formed.
- the housing 10 with respect to the support portion 20 even when the subject presses the test portion relatively strongly against the support portion 20. It becomes difficult to suppress the movement of.
- the protruding portion 14 and the receiving portion 26 do not come into contact with each other.
- the subject strongly presses the test portion against the support portion 20. Therefore, as a result of the housing 10 being displaced with respect to the support portion 20 due to the deformation of the elastic member 70, the protruding portion 14 and the receiving portion 26 are in contact with each other.
- the housing 10 and the support portion 20 are not in contact with each other except for the portion where the projecting portion 14 and the receiving portion 26 are in contact with each other. Therefore, as the movement of the housing 10 with respect to the support portion 20, even if the movement like the arrow DL shown in the figure is suppressed to some extent, the movement like the arrow UL shown in the figure is hardly suppressed. Therefore, even when the subject presses the test portion against the support portion 20 relatively strongly, the movement of the housing 10 with respect to the support portion 20 is less likely to be suppressed.
- the housing 10 includes the protruding portion 14 and the supporting portion 20 includes the receiving portion 26, but these may be reversed. That is, in one embodiment, the housing 10 may be provided with the receiving portion 26, and the supporting portion 20 may be provided with the protruding portion 14.
- the electronic device 1 may be provided with stoppers (14, 26).
- the stoppers (14, 26) may include a protruding portion 14 and a receiving portion 26.
- the protrusion 14 may be formed on one side of the housing 10 and the support 20.
- the receiving portion 26 may be formed on the other side of the housing 10 and the supporting portion 20.
- the receiving portion 26 may be configured to receive the protruding portion 14.
- the stoppers (14, 26) may partially abut the housing 10 on the support portion 20 when the housing 10 is displaced with respect to the support portion 20 due to the deformation of the elastic member 70. It may be configured as follows.
- the senor 50 may be a sensor such as a gyro sensor (gyroscope) that detects at least one of an object's angle (tilt), angular velocity, and angular acceleration for a plurality of axes.
- the sensor 50 can detect a complicated movement based on the pulsation at the test site of the test subject as a parameter for each of the plurality of axes.
- the sensor 50 may be a 6-axis sensor in which a 3-axis gyro sensor and a 3-axis acceleration sensor are combined.
- FIG. 10 is a diagram showing an example of a usage mode of the electronic device 1.
- FIG. 10 is an enlarged view showing how the situation shown in FIG. 1 is viewed from another viewpoint.
- the sensor 50 built in the housing 10 of the electronic device 1 may detect rotational motion about each of the three axes of ⁇ -axis, ⁇ -axis, and ⁇ -axis.
- the ⁇ -axis may be, for example, an axis along a direction substantially orthogonal to the radial artery of the subject.
- the ⁇ -axis may be, for example, an axis along a direction substantially parallel to the radial artery of the subject.
- the ⁇ axis may be, for example, an axis along a direction substantially orthogonal to both the ⁇ axis and the ⁇ axis.
- the senor 50 may detect the pulsation at the test site of the test subject as a part of the rotational movement about a predetermined axis. Further, the sensor 50 may detect the pulsation at the test site of the subject as at least biaxial rotational motion, or may detect it as triaxial rotational motion.
- the "rotational motion” does not necessarily have to be a motion that displaces one or more turns on the orbit of a circle.
- the rotational motion may be, for example, a partial displacement (for example, a displacement along an arc) of less than one circumference on the orbit of a circle.
- the electronic device 1 according to the present embodiment can detect, for example, rotational motion about each of the three axes by the sensor 50. Therefore, the electronic device 1 according to the present embodiment can increase the detection sensitivity of the pulse wave of the subject by synthesizing the plurality of results detected by the sensor 50 by adding them together. Calculations such as summing may be performed by, for example, the control unit 52. In this case, the control unit 52 may calculate an index of the pulse wave based on the pulsation detected by the sensor 50.
- the control unit 52 can improve the detection accuracy of the pulse wave of the subject by, for example, adding up the detection results for the ⁇ -axis, the ⁇ -axis, and the ⁇ -axis. Therefore, according to the electronic device 1 according to the present embodiment, the usefulness when the subject measures the pulse wave can be improved.
- the control unit 52 of the electronic device 1 may calculate an index of the pulse wave based on the pulsation detected by the sensor 50.
- the control unit 52 may synthesize (for example, add up) the results detected by the sensor 50 as at least two axes of rotational motion (for example, three axes of rotational motion).
- pulse wave signals in a plurality of directions can be detected. Therefore, according to the electronic device 1 according to the present embodiment, by synthesizing the detection results for a plurality of axes, the signal strength is increased as compared with the detection results for one axis. Therefore, according to the electronic device 1 according to the present embodiment, it is possible to detect a signal having a good SN ratio, increase the detection sensitivity, and enable stable measurement.
- the peak based on the pulse wave of the subject does not appear remarkably as compared with the detection result for the other ⁇ -axis or ⁇ -axis.
- the SN ratio may decrease.
- most of the detection results with low signal levels can be regarded as noise components. In such cases, detection results with low signal levels may not contain good pulse wave components. Therefore, in the present embodiment, if there is an axis whose detection result is less than a predetermined threshold value among the detection results for the plurality of axes, the control unit 52 does not have to add up the detection results of the axes.
- the control unit 52 adds up all of the detection results for the ⁇ -axis, the detection results for the ⁇ -axis, and the detection results for the ⁇ -axis to generate a pulse wave based on the pulsation detected by the sensor 50. It may be calculated as an index.
- the control unit 52 may calculate the sum of the detection results for the ⁇ -axis and the detection results for the ⁇ -axis as an index of the pulse wave based on the pulsation detected by the sensor 50.
- control unit 52 may set a threshold value as a reference for whether or not the detection results for each axis are included in the total separately for each axis, or for each axis. The same may be decided. In either case, a threshold value may be appropriately set so that the pulsation of the subject is appropriately detected in the detection result for each axis.
- the control unit 52 may synthesize only the result of the sensor 50 detecting as the rotational motion of at least two axes having a component having a predetermined threshold value or more. good. Therefore, according to the electronic device 1 according to the present embodiment, it is possible to suppress a decrease in the SN ratio of the detection result. Therefore, according to the electronic device 1 according to the present embodiment, the usefulness when the subject measures the pulse wave can be improved.
- the control unit 52 when the polarities of the detection results for the plurality of axes are reversed, the control unit 52 reverses the polarities of the detection results for at least one axis and then sets the polarities for the other axes. You may add them up. For example, when the polarity of the detection result for two axes is reversed, the control unit 52 may reverse the polarity of the detection result for one axis according to the other axis.
- the control unit 52 may synthesize the results detected by the sensor 50 as rotational motion of at least two axes after making the respective polarities uniform. According to the electronic device 1 according to the present embodiment, it is possible to improve the detection accuracy of the pulse wave of the subject. Therefore, according to the electronic device 1 according to the present embodiment, the usefulness when the subject measures the pulse wave can be improved.
- the control unit 52 may determine whether the peak of the detection result for each axis is oriented in the positive direction side or the negative direction side of the signal strength. Further, for example, the control unit 52 may determine whether the peak of the detection result for each axis is larger or smaller than the average value of the signals. Further, when reversing the polarity of the detection result for at least one axis, the control unit 52 may multiply the detection result of reversing the polarity by -1.
- control unit 52 may appropriately invert the polarity of the detection result as described above, add or subtract a predetermined value to the entire detection result, and then add the detection result to the other axes. Further, the control unit 52 may appropriately weight the detection results for each axis or correct the detection results for each axis before summing the detection results for the plurality of axes. good.
- FIG. 11 is a functional block diagram showing a schematic configuration of the electronic device 1.
- the electronic device 1 shown in FIG. 11 includes a notification unit 40, a switch 13, a sensor 50, a control unit 52, a storage unit 54, a communication unit 56, and a battery 60. These functional parts have already been described.
- FIG. 12 is a diagram showing an example of a pulse wave acquired on the wrist using the electronic device 1.
- FIG. 12 shows a case where an angular velocity sensor is used as the sensor 50 for detecting pulsation.
- the angular velocity acquired by the angular velocity sensor is time-integrated, and the horizontal axis represents time and the vertical axis represents angle. Since the acquired pulse wave may contain noise caused by the body movement of the subject, for example, it may be corrected by a filter that removes the DC (Direct Current) component to extract only the pulsation component.
- DC Direct Current
- Propagation of pulse waves is a phenomenon in which the pulsation of blood extruded from the heart is transmitted through the walls of arteries or blood.
- the pulsation caused by the blood extruded from the heart reaches the periphery of the limbs as a forward wave, and a part of it is reflected at the bifurcation of the blood vessel, the change in the diameter of the blood vessel, etc. and returns as the reflected wave.
- Indicators based on the pulse wave are, for example, the pulse wave velocity PWV (Pulse Wave Velocity) of the forward wave, the magnitude PR of the reflected wave of the pulse wave, the time difference ⁇ t between the forward wave and the reflected wave of the pulse wave, and the pulse wave. It is an AI (Augmentation Index) or the like represented by the ratio of the magnitudes of the forward wave and the reflected wave.
- PWV Pulse Wave Velocity
- AI Application Index
- the pulse wave shown in FIG. 12 is the pulse of n times of the user, and n is an integer of 1 or more.
- the pulse wave is a synthetic wave in which a forward wave generated by the ejection of blood from the heart and a reflected wave generated from a vascular branch or a change in blood vessel diameter are overlapped.
- the peak magnitude of the pulse wave due to the forward wave for each pulse is P Fn
- the peak magnitude of the pulse wave due to the reflected wave for each pulse is P Rn
- the minimum value of the pulse wave for each pulse is P Sn .
- the interval between the peaks of the pulse is shown by TPR .
- the pulse wave-based index is a quantification of the information obtained from the pulse wave.
- PWV which is one of the indexes based on the pulse wave
- PWV is calculated based on the propagation time difference of the pulse wave measured at two test sites such as the upper arm and the ankle and the distance between the two points.
- the PWV is acquired by synchronizing the pulse waves (for example, the upper arm and the ankle) at two points of the artery, and the difference (L) between the two points is divided by the time difference (PTT) between the two points. Is calculated.
- the magnitude PRn of the peak of the pulse wave due to the reflected wave may be calculated, or the PRave obtained by averaging n times may be calculated. It may be calculated.
- the time difference ⁇ t between the forward wave and the reflected wave of the pulse wave which is one of the indexes based on the pulse wave
- the time difference ⁇ t n in a predetermined pulse may be calculated, or the time difference for n times is averaged ⁇ t. The average may be calculated.
- AI n is the AI for each pulse.
- the pulse wave velocity PWV the magnitude PR of the reflected wave
- the time difference ⁇ t between the forward wave and the reflected wave the AI change depending on the hardness of the blood vessel wall
- the electronic device 1 can estimate the state of arteriosclerosis and the fluidity (viscosity) of blood by using the indexes based on these pulse waves.
- the electronic device 1 has blood fluidity based on the same test site of the same subject and the change in the index based on the pulse wave acquired during the period when the arteriosclerosis state hardly changes (for example, within several days). Changes can be estimated.
- the fluidity of blood indicates the ease of blood flow. For example, when the fluidity of blood is low, the pulse wave velocity PWV becomes small. For example, when the blood fluidity is low, the magnitude PR of the reflected wave becomes small. For example, when the blood fluidity is low, the time difference ⁇ t between the forward wave and the reflected wave becomes large. For example, if the blood fluidity is low, the AI will be low.
- the electronic device 1 calculates the pulse wave velocity PWV , the magnitude PR of the reflected wave, the time difference ⁇ t between the forward wave and the reflected wave, and the AI.
- the index based on the pulse wave is not limited to this.
- the electronic device 1 may use the posterior systolic blood pressure as an index based on the pulse wave.
- FIG. 13 is a diagram showing the calculated time variation of AI.
- the pulse wave was acquired for about 5 seconds using an electronic device 1 equipped with an angular velocity sensor.
- the control unit 52 calculated the AI for each pulse from the acquired pulse wave, and further calculated the average value AI ave of these.
- the electronic device 1 acquires pulse waves at a plurality of timings before and after a meal, and calculates an average value of AI (hereinafter referred to as AI) as an example of an index based on the acquired pulse waves. did.
- the horizontal axis of FIG. 13 shows the passage of time with the first measurement time after a meal as 0.
- the vertical axis of FIG. 13 shows the AI calculated from the pulse wave acquired at that time. The subject was at rest and the pulse wave was obtained on the radial artery.
- the electronic device 1 acquired pulse waves before meals, immediately after meals, and every 30 minutes after meals, and calculated a plurality of AIs based on each pulse wave.
- the AI calculated from the pulse waves obtained before meals was about 0.8.
- the AI immediately after the meal was smaller than that before the meal, and the AI reached the minimum extremum about 1 hour after the meal. AI gradually increased until the measurement was completed 3 hours after eating.
- the electronic device 1 can estimate the change in blood fluidity from the calculated change in AI. For example, when red blood cells, white blood cells, and platelets in blood are solidified into dumplings or the adhesive strength is increased, the fluidity of blood is lowered. For example, as the water content of plasma in blood decreases, the fluidity of blood decreases. These changes in blood fluidity vary depending on, for example, the glycolipid state described later, or the health state of the subject such as heat stroke, dehydration, and hypothermia. Before the health condition of the subject becomes serious, the subject can know the change in the fluidity of his / her blood by using the electronic device 1 of the present embodiment. From the change in AI before and after the meal shown in FIG.
- the electronic device 1 may notify the state where the blood fluidity is low as “muddy” and the state where the blood fluidity is high as “smooth”. For example, the electronic device 1 may determine “muddy” or “smooth” based on the average value of AI at the actual age of the subject. The electronic device 1 may be determined to be “smooth” if the calculated AI is larger than the average value, and to be “muddy” if the calculated AI is smaller than the average value. In the electronic device 1, for example, the determination of "muddy” or “smooth” may be made based on the AI before meals.
- the electronic device 1 may estimate the degree of “muddy” by comparing the AI after a meal with the AI before a meal.
- the electronic device 1 can be used as an index of the blood vessel age (blood vessel hardness) of the subject, for example, as an AI before meals, that is, an AI on an empty stomach.
- the electronic device 1 is estimated based on the blood vessel age (blood vessel hardness) of the subject, for example, if the calculated amount of change in AI is calculated based on the AI before meals of the subject, that is, the AI on an empty stomach. Since the error can be reduced, the change in blood fluidity can be estimated more accurately.
- FIG. 14 is a diagram showing the measured results of the calculated AI and blood glucose level.
- the method of acquiring the pulse wave and the method of calculating the AI are the same as those of the embodiment shown in FIG.
- the right vertical axis of FIG. 14 shows the blood glucose level in blood
- the left vertical axis shows the calculated AI.
- the solid line in FIG. 14 shows the AI calculated from the acquired pulse wave
- the dotted line shows the measured blood glucose level.
- the blood glucose level was measured immediately after the pulse wave was acquired.
- the blood glucose level was measured using a blood glucose meter "Medisafe Fit" manufactured by Terumo Corporation.
- the blood glucose level immediately after a meal is increased by about 20 mg / dl as compared with the blood glucose level before a meal. About 1 hour after eating, the blood glucose level reached the maximum extreme value. After that, the blood glucose level gradually decreased until the measurement was completed, and became almost the same as the blood glucose level before the meal about 3 hours after the meal.
- the blood glucose level before and after a meal has a negative correlation with the AI calculated from the pulse wave.
- the sugar in the blood may cause red blood cells and platelets to clump together in a dumpling shape or become more adhesive, resulting in lower blood fluidity.
- the pulse wave velocity PWV may decrease.
- the time difference ⁇ t between the forward wave and the reflected wave may increase.
- the magnitude PR of the reflected wave may become smaller than the magnitude PF of the forward wave.
- the AI may become smaller.
- the electronic device 1 can estimate the blood glucose level of the subject from the calculated AI.
- the electronic device 1 can estimate the state of glucose metabolism of the subject.
- the electronic device 1 estimates, for example, a blood glucose level as a state of glucose metabolism.
- a predetermined time or more for example, about 1.5 hours or more after a meal
- the electronic device 1 is set.
- electronic device 1 is used for glucose metabolism of a subject.
- the state of can be estimated.
- (AI B -AI P ) is a predetermined value or more (for example, 0.5 or more), it can be estimated that the subject has an abnormal glucose metabolism (patient with postprandial hyperglycemia).
- FIG. 15 is a diagram showing the relationship between the calculated AI and the blood glucose level.
- the calculated AI and blood glucose level were obtained within 1 hour after a meal in which the blood glucose level fluctuated greatly.
- the data in FIG. 15 includes different postprandial data for the same subject.
- the calculated AI and the blood glucose level showed a negative correlation.
- the calculated correlation coefficient between AI and blood glucose level was 0.9 or more, showing a very high correlation. For example, if the correlation between the calculated AI and the blood glucose level as shown in FIG. 15 is acquired in advance for each subject, the electronic device 1 estimates the blood glucose level of the subject from the calculated AI. You can also do it.
- a method of estimating the blood pressure value from the feature amount of the pulse wave has already been proposed (see, for example, Patent Document 1 described above).
- the blood pressure fluctuates.
- the effect of diet on blood pressure fluctuations is relatively large. Therefore, a method of estimating the blood pressure value from the feature amount of the pulse wave is desired in consideration of the influence of the diet.
- there is a cuff type sphygmomanometer that uses a conventional cuff when measuring the blood pressure value of a subject.
- the blood pressure value of the subject can be estimated from the pulse wave of the subject detected without using the cuff (cuffless type).
- a method of estimating the blood pressure value (and blood glucose level) from the pulse wave of the subject detected by the above-mentioned electronic device 1 without using the cuff, in consideration of the influence of the subject's diet will be further described.
- the estimation of the blood pressure value (and blood glucose level) of the subject by the electronic device 1 can be mainly divided into the following two phases.
- Learning model generation phase A phase in which a learning model (estimation formula) used for estimating the blood pressure value (and blood pressure level) of a subject is generated by machine learning using, for example, AI (Artificial Intelligence) (2).
- Subject's blood pressure (and blood pressure) estimation phase Using the learning model (estimation formula) generated in (1), the subject's blood pressure (and blood pressure) is based on the pulse wave acquired by the electronic device 1.
- Estimating Phases will be described in more detail below.
- the index of the human pulse wave at the first time point and the pulse wave at the second time point are Data indicating indicators may be collected.
- the first time point may be before a predetermined time of meal or before a predetermined time.
- the predetermined time can be set as appropriate.
- the first time point may be 1 hour, 3 hours, 6 hours, etc. before meals. Further, for example, the first time point may be 1 hour or earlier, 3 hours or earlier, 6 hours or earlier of the meal. Further, in the present specification, the first time point may be, for example, after a predetermined time from the latest meal or after a predetermined time.
- the predetermined time can be set as appropriate. Further, for example, the first time point may be 1 hour, 3 hours, 6 hours, etc. after the meal. Further, for example, the first time point may be 1 hour or later, 3 hours or later, 6 hours or later, etc. of the meal.
- the first time point may be designated as a specific opportunity such as at the time of a medical examination. Further, in the present specification, the first time point may be, for example, a time when the subject recognizes a feeling of hunger or when the subject is hungry.
- the second time point may be after a meal.
- the second time point may be a predetermined time after or after a predetermined time from the latest meal.
- the second time point may be 1 hour, 3 hours, 6 hours, etc. after eating.
- the second time point may be 1 hour or later, 3 hours or later, 6 hours or later, or the like of the meal.
- the first time point and / or the second time point is not limited to the above example, and may be appropriately set by, for example, a user or the like.
- a mode for collecting data showing an index of a human fasting pulse wave and an index of a postprandial pulse wave will be described. That is, the dietary load test may be performed in the above (1) learning model generation phase.
- the data collected in the above (1) learning model generation phase may be based on the following three patterns.
- First pattern Measured value of pulse wave before meal, measured value of blood glucose level on an empty stomach, and measured value of pulse wave after meal
- Second pattern Measured value of pulse wave before meal, and measured value of blood glucose value on an empty stomach Value and measured value of pulse wave after meal
- Third pattern Measured value of pulse wave before meal and measured value of pulse wave after meal
- the above patterns may be used in appropriate combinations. Further, the pulse wave before or after a meal may be a pulse rate or a pulse wave increase coefficient (A index) described later.
- the pulse wave may be measured by the electronic device 1.
- the blood pressure value may be measured by an arbitrary sphygmomanometer.
- the blood glucose level may be measured by an arbitrary glucose meter, or known data such as measurement data at the time of a health examination may be used.
- breakfast was adopted as a meal in the dietary load test. That is, the person performing the dietary load test measured from 9:30 am to 12:30 pm without taking breakfast and taking no medicine.
- the pulse wave was first measured by the electronic device 1, and then the blood glucose level of the fingertip was measured by the blood glucose meter.
- the person performing the dietary load test ingested a meal of 623 kcal of calories composed of 86 g of carbohydrates, 18 g of lipids, and 30 g of proteins as a test meal, and one hour later, the same items were measured. ..
- the index of the pulse wave acquired (detected) by the electronic device 1 is defined.
- a index is an index showing the ratio between the magnitude of the forward wave of the pulse wave and the magnitude of the reflected wave.
- the electronic device 1 according to the embodiment may perform regression analysis of A index and blood glucose level. In this case, the regression analysis may be an ensemble learning of the AI (Artificial Intelligence) learning method.
- AI Artificial Intelligence
- FIG. 16 is a diagram showing an example of a pulse wave detected by, for example, the electronic device 1 as in FIG. 12.
- FIG. 16 shows only one cycle of the pulse wave shown in FIG.
- the A index represented by P1 / P0 is defined as the first pulse wave increase coefficient AI1.
- the A index represented by P2 / P0 is defined as the second pulse wave increase coefficient AI2.
- the A index represented by P3 / P0 is defined as the third pulse wave increase coefficient AI3.
- P0 represents the peak value of one pulse wave.
- P1 indicates a value after 100 milliseconds have elapsed from the peak of one pulse wave, that is, the peak time (peak timing) of P0.
- P2 indicates the value of the peak of the reflected wave of one pulse wave.
- P3 indicates a value 120 milliseconds after the peak of one pulse wave, that is, the peak time (peak timing) of P0.
- the electronic device 1 may acquire the fasting pulse wave and the postprandial pulse wave of at least one human being. In order to further improve the accuracy, the electronic device 1 may acquire a plurality of human fasting pulse waves and postprandial pulse waves.
- a dietary load test was conducted by 60 people.
- the electronic device 1 may perform regression analysis by machine learning in the above (1) learning model generation phase.
- the explanatory variable is used as the subject's information, for example, the subject's age, fasting data, and postprandial data.
- the subject information does not have to include the subject's gender.
- the fasting data may be the blood glucose level of the subject, the pulse rate, the above-mentioned first pulse wave increase coefficient AI1, the second pulse wave increase coefficient AI2, and the third pulse wave increase coefficient AI3.
- the postprandial data may be the pulse rate of the subject, the above-mentioned first pulse wave increase coefficient AI1, the second pulse wave increase coefficient AI2, and the third pulse wave increase coefficient AI3.
- the explanatory variables are used as the subject information, for example, the subject's age, fasting data, and postprandial. It may be used as data of.
- the subject information does not have to include the subject's gender.
- the fasting data may be the blood glucose level of the subject, the pulse rate, the above-mentioned first pulse wave increase coefficient AI1, the second pulse wave increase coefficient AI2, and the third pulse wave increase coefficient AI3.
- the postprandial data may be the pulse rate of the subject, the above-mentioned first pulse wave increase coefficient AI1, the second pulse wave increase coefficient AI2, and the third pulse wave increase coefficient AI3.
- the electronic device 1 according to the embodiment uses the same explanatory variables to generate a learning model used for estimating the blood pressure value of the subject and a learning model used for estimating the blood glucose level of the subject. be able to. Therefore, the electronic device 1 according to the embodiment can simultaneously estimate the blood pressure value and the blood glucose level of the subject by using such a learning model.
- the above (2) subject's blood pressure value (and blood glucose level) estimation phase the subject's blood pressure is based on the pulse wave acquired by the electronic device 1 using the learning model (estimation formula) generated in the above (1). This is the phase of estimating the value (and blood glucose level).
- FIGS. 17 to 19 are diagrams showing the results of regression analysis as an example of estimating the blood pressure value by the electronic device 1 according to the embodiment.
- the horizontal axis represents the blood pressure value (maximum blood pressure) measured in the human upper arm
- the vertical axis represents the estimated blood pressure value.
- FIG. 17 shows an example in which the blood pressure value is estimated by the electronic device 1 according to the embodiment using the learning model generated based on the data collected in the first pattern described above. That is, FIG. 17 shows a case where data on the fasting blood glucose level is included as an explanatory variable.
- the average of the correlation coefficients was calculated to be 0.87, and the average of the coefficient of variation was calculated to be 7.3.
- FIG. 18 shows an example in which the blood pressure value is estimated by the electronic device 1 according to the embodiment using the learning model generated based on the data collected in the second pattern described above. That is, FIG. 18 shows a case where the fasting blood pressure value data is included as the explanatory variable without including the fasting blood glucose level data.
- the average of the correlation coefficients was calculated to be 0.95, and the average of the coefficient of variation was calculated to be 4.5.
- FIG. 19 shows an example in which the blood pressure value is estimated by the electronic device 1 according to the embodiment using the learning model generated based on the data collected in the third pattern described above. That is, FIG. 19 shows a case where the fasting blood glucose level data is not included and the fasting blood pressure level data is not included as an explanatory variable.
- the average of the correlation coefficients was calculated to be 0.80, and the average of the coefficient of variation was calculated to be 8.9.
- the cuffless type sphygmomanometer cannot generally cope with the fluctuation of blood pressure due to the influence of diet.
- the electronic device 1 since the learning model (estimation formula) is generated by performing the meal load test, it is possible to cope with the influence of meals.
- FIG. 20 is a diagram showing the results of regression analysis as an example of estimating the blood glucose level by the electronic device 1 according to the embodiment.
- the horizontal axis represents the blood glucose level measured at the human fingertip
- the vertical axis represents the estimated blood glucose level.
- FIG. 20 shows an example in which the blood glucose level is estimated by the electronic device 1 according to the embodiment using the learning model generated based on the data collected in the first pattern described above. That is, FIG. 20 shows a case where data on the fasting blood glucose level is included as an explanatory variable, as in FIG. In the example shown in FIG. 20, the average of the correlation coefficients was calculated to be 0.95, and the average of the coefficient of variation was calculated to be 12.4. The example shown in FIG. 20 is based on data from 60 humans (55 of whom are diabetic). In the example shown in FIG. 20, 90% of the data confirmed that the estimation error remained within ⁇ 15%.
- FIG. 21 and 22 are flowcharts illustrating the operation of the electronic device 1 according to the embodiment.
- FIG. 21 is a flowchart illustrating the operation of the electronic device 1 in the (1) learning model generation phase.
- FIG. 22 is a flowchart illustrating the operation of the electronic device 1 in the (2) blood pressure value (and blood glucose level) estimation phase of the subject.
- the control unit 52 of the electronic device 1 acquires (collects) data of the index of the pulse wave during fasting and the index of the pulse wave after eating (collection).
- the fasting time may typically be, for example, a time before meals.
- the control unit 52 may store the data acquired in step S11 in, for example, a storage unit 54.
- the control unit 52 may acquire the fasting pulse wave and the postprandial pulse wave of at least one human being as described above.
- the electronic device 1 may acquire a plurality of human fasting pulse waves and postprandial pulse waves.
- the electronic device 1 may be subjected to a dietary load test by 60 people as in the demonstration experiment (clinical test) conducted by the applicant. Further, in step S11, the control unit 52 may select and acquire an appropriate one from explanatory variables such as human pulse wave, blood glucose level, blood pressure value, and age.
- the objective variable may be a human blood pressure value.
- a group with less bias may be appropriately selected within the range of specifications of the electronic device 1 (for example, the measurement range of blood pressure).
- the data collected may also be based on a Gaussian distribution.
- the collected data may include the data of the subject whose blood pressure value (and blood glucose level) is estimated in the above (2) blood pressure value (and blood glucose level) estimation phase of the subject, or the subject and the subject. May contain data from another person.
- step S12 the control unit 52 performs regression analysis by machine learning.
- the control unit 52 may perform machine learning by, for example, AI (Artificial Intelligence).
- AI Artificial Intelligence
- step S12 the control unit 52 may, for example, determine the objective variable and the explanatory variable, and then perform regression analysis by machine learning.
- the objective variable may be, for example, a blood pressure value and / or a blood glucose level.
- machine learning ensemble learning for example, methods such as bagging, boosting, and stacking are known.
- regression analysis by XGBoost is well known in boosting methods.
- regression analysis by, for example, XGBoost may be performed.
- machine learning based on another method may be performed.
- known ones can be applied as appropriate. Therefore, a more detailed description of the machine learning method will be omitted.
- control unit 52 When the regression analysis is performed in step S12, the control unit 52 generates a learning model (estimation formula) based on the result of the regression analysis (step S13).
- the control unit 52 may store the learning model generated in step S13 in, for example, a storage unit 54.
- the learning model by machine learning can be obtained by the electronic device 1 according to the embodiment.
- the learning model obtained in this way for example, the one output as a file may be used as it is even if the specific structure is not clarified.
- the electronic device 1 As described above, the electronic device 1 according to the embodiment generates a learning model (estimation formula) used for estimating the blood pressure value of the subject.
- the electronic device 1 according to the embodiment determines the relationship between the blood pressure value and the pulse wave associated with the blood pressure value based on the index of the human fasting pulse wave and the index of the postprandial pulse wave. Generate the learning model (estimation formula) to be shown.
- the electronic device 1 generates a learning model (estimation formula) used for estimating the blood pressure value and the blood glucose level of the subject.
- the electronic device 1 according to the embodiment relates to the relationship between the blood pressure value and the pulse wave associated with the blood pressure value, based on the index of the human fasting pulse wave and the index of the postprandial pulse wave.
- a learning model (estimation formula) showing the relationship between the blood pressure level and the pulse wave associated with the blood pressure level is generated.
- the index of the pulse wave may be an index showing the ratio of the magnitude of the forward wave of the pulse wave to the magnitude of the reflected wave of the pulse wave.
- the learning model may also be generated based on the fasting blood pressure value of a human being. In addition, the learning model may be generated based on the postprandial blood pressure value of humans. The learning model may also be generated based on the fasting blood glucose level of humans. In addition, the learning model may be generated based on the postprandial blood glucose level of humans. In addition, the learning model may be generated according to the elapsed time after a human meal. In addition, the learning model may be generated depending on whether the human is in a fasting state or a postprandial state.
- step S21 the control unit 52 of the electronic device 1 controls the pre-meal pulse wave of the subject and the pulse at other timings. Acquire (detect) the wave index (step S21).
- the other timing in step S21 may be, for example, a postprandial time point or any other time point.
- the electronic device 1 may acquire an index of the pulse wave from the sensor 50.
- the control unit 52 may store the acquired index of the pulse wave in, for example, a storage unit 54.
- the control unit 52 acquires the learning model (step S22).
- the learning model acquired by the control unit 52 in step S22 may be the learning model generated in step S13 of FIG. Further, in step S22, the control unit 52 may read the learning model stored in the storage unit.
- the control unit 52 estimates the blood pressure value (and blood glucose level) of the subject using the learning model (step S23).
- the control unit 52 may use the explanatory variables of the subject corresponding to the explanatory variables in the above (1) learning model generation phase. As described above, the blood pressure value (and blood glucose level) of the subject is estimated with good accuracy by the electronic device 1 according to the embodiment.
- the electronic device 1 according to the embodiment estimates the blood pressure value of the subject.
- the electronic device 1 according to the embodiment is the index of the pulse wave acquired by the sensor 50, and is based on the index of the pulse wave before meals of the subject and the index of the pulse wave at other timings.
- the electronic device 1 according to one embodiment is a learning model generated based on an index of a human fasting pulse wave and an index of a postprandial pulse wave, and is associated with a blood pressure value and the blood pressure value.
- the blood pressure value of the subject is estimated using a learning model showing the relationship with the pulse wave.
- the electronic device 1 estimates the blood pressure level and the blood glucose level of the subject.
- the electronic device 1 according to the embodiment is the index of the pulse wave acquired by the sensor 50 and is based on the index of the pulse wave before meals of the subject and the index of the pulse wave at other timings.
- the electronic device 1 according to one embodiment is a learning model generated based on an index of a human fasting pulse wave and an index of a postprandial pulse wave, and is associated with a blood pressure value and the blood pressure value.
- the blood pressure level and the blood glucose level of the subject are estimated by using a learning model showing the relationship with the pulse wave and the relationship between the blood glucose level and the pulse wave associated with the blood glucose level.
- the electronic device 1 according to the embodiment can estimate the blood pressure level (and the blood glucose level) with good accuracy even for a person having a high blood glucose level in consideration of the influence of meals. Therefore, according to the electronic device 1 according to the embodiment, the blood pressure of the subject can be estimated with good accuracy. Further, the electronic device 1 according to the embodiment can estimate the blood pressure value (and blood glucose level) of the subject by using the cuffless type sensor. Therefore, according to the electronic device 1 according to the embodiment, the blood pressure value (and blood glucose level) of the subject can be estimated non-invasively.
- FIG. 25 is a schematic diagram showing a schematic configuration of a system according to an embodiment.
- the system shown in FIG. 25 includes an electronic device 1, a server 151, a mobile terminal 150, and a communication network.
- the index based on the pulse wave calculated by the electronic device 1 is transmitted to the server 151 through the communication network and stored in the server 151 as the personal information of the subject.
- the server 151 estimates the blood fluidity of the subject and the state of glucose metabolism and lipid metabolism by comparing with the past acquired information of the subject and / or various databases.
- Server 151 also creates optimal advice for the subject.
- the server 151 returns the estimation result, advice, and the like to the mobile terminal 150 owned by the subject.
- the mobile terminal 150 can construct a system in which the received estimation result and advice are notified from the display unit of the mobile terminal 150.
- information from a plurality of users can be collected in the server 151, so that the estimation accuracy is further improved.
- the mobile terminal 150 is used as the notification means, the electronic device 1 does not require the notification unit 40 and is further miniaturized.
- the server 151 estimates the blood fluidity of the subject and the states of glucose metabolism and lipid metabolism, the calculation load of the control unit 52 of the electronic device 1 can be reduced.
- the burden on the storage unit 54 of the electronic device 1 can be reduced. Therefore, the electronic device 1 can be further miniaturized and simplified. In addition, the processing speed of the calculation is also improved.
- the system according to the present embodiment shows a configuration in which the electronic device 1 and the mobile terminal 150 are connected by a communication network via the server 151, but the system according to the present invention is not limited to this.
- the electronic device 1 and the mobile terminal 150 may be directly connected to each other via a communication network without using the server 151.
- the electronic device 1 may include the sensor 50 and the communication unit 56.
- the sensor 50 acquires the pulse wave of the subject.
- the communication unit 56 provides information on the pulse wave acquired by the sensor 50 or the index of the pulse wave, which is the pulse wave before meals of the subject and the pulse wave at another timing, or the index of the pulse wave, to other electronic devices. It transmits to a device (for example, server 151).
- the angular velocity sensor is provided as the sensor 50
- the form of the electronic device 1 is not limited to this.
- the sensor 50 may include an optical pulse wave sensor including a light emitting unit and a light receiving unit, or may include a pressure sensor.
- the test site on which the electronic device 1 measures biological information is not limited to the wrist of the test subject. It suffices if the sensor 50 is arranged on an artery such as the neck, ankle, thigh, and ear.
- the state of glucose metabolism and lipid metabolism of the subject was estimated based on the first and second extrema of the pulse wave-based index and these times.
- the processing executed by the electronic device 1 is not limited to this. When only one extreme value appears, the extreme value may not appear, and the electronic device 1 is based on the overall tendency of the time variation of the index based on the calculated pulse wave (for example, integral value, Fourier transform, etc.).
- the state of glucose metabolism and lipid metabolism of the subject may be estimated.
- the electronic device 1 does not extract the extreme value of the index based on the pulse wave, but the glucose metabolism and the lipid metabolism of the subject based on the time range in which the index based on the pulse wave becomes equal to or less than a predetermined value.
- the state of may be estimated.
- the electronic device 1 may estimate the fluidity of blood before and after exercise and during exercise, or may estimate the fluidity of blood before and after bathing and during bathing.
- the electronic device 1 measures the pulse wave, but the pulse wave does not necessarily have to be measured by the electronic device 1.
- the electronic device 1 may be connected to an information processing device such as a computer or a mobile phone by wire or wirelessly, and the angular velocity information acquired by the sensor 50 may be transmitted to the information processing device.
- the information processing device may measure the pulse wave based on the information of the angular velocity.
- the information processing apparatus may execute estimation processing of glucose metabolism and lipid metabolism.
- the electronic device 1 does not have to include a control unit 52, a storage unit 54, a notification unit 40, and the like. Further, when the electronic device 1 is connected to the information processing device by wire, the electronic device 1 may not have the battery 60 and power may be supplied from the information processing device.
- control unit 52 of the electronic device 1 may estimate at least one of glycolipid metabolism, blood glucose level, and lipid level from the index of pulse wave. Further, the electronic device 1 may function as a diet monitor for monitoring the progress of the diet of the subject or a glucose meter for monitoring the blood glucose level of the subject.
- An electronic device that estimates the blood pressure value of the subject Based on the pulse wave index acquired by the sensor and based on the pre-meal pulse wave of the subject and the pulse wave index at other timings, An electronic device that estimates the blood pressure value of the subject.
- [Appendix 4] A learning model generated based on a human fasting pulse wave index and a postprandial pulse wave index, the relationship between the blood pressure value and the pulse wave associated with the blood pressure value, and the blood glucose level. Using a learning model showing the relationship with the pulse wave associated with the blood glucose level, Based on the pulse wave index acquired by the sensor and based on the pre-meal pulse wave of the subject and the pulse wave index at other timings, An electronic device that estimates the blood pressure level and blood glucose level of the subject. [Appendix 5] The electronic device according to any one of Supplementary note 1 to 4, wherein the learning model is generated based on a human fasting blood pressure value.
- [Appendix 6] The electronic device according to any one of Supplementary note 1 to 5, wherein the learning model is generated based on a human postprandial blood pressure value.
- [Appendix 7] The electronic device according to any one of Supplementary note 1 to 6, wherein the learning model is generated based on a human fasting blood glucose level.
- [Appendix 8] The electronic device according to any one of Supplementary note 1 to 7, wherein the learning model is generated based on a human postprandial blood glucose level.
- [Appendix 9] The electronic device according to any one of Supplementary note 1 to 8, wherein the learning model is generated according to the elapsed time after a human meal.
- [Appendix 10] The electronic device according to any one of Supplementary note 1 to 9, wherein the learning model is generated according to a human fasting state or a postprandial state.
- [Appendix 11] The sensor unit that acquires the pulse wave of the subject and Communication that transmits information on the pulse wave acquired by the sensor unit or the index of the pulse wave and the pulse wave before meals of the subject and the pulse wave at another timing or the index of the pulse wave to other electronic devices. Department and Electronic equipment equipped with.
- [Appendix 12] The electronic device according to any one of Supplementary note 1 to 11, wherein the index of the pulse wave is an index showing the ratio of the magnitude of the forward wave of the pulse wave to the magnitude of the reflected wave of the pulse wave.
- a method of controlling an electronic device that generates a learning model used to estimate a subject's blood pressure comprising the step of generating a learning model showing the relationship between a blood pressure value and a pulse wave associated with the blood pressure value based on a human fasting pulse wave index and a postprandial pulse wave index.
- a learning model generated based on a human fasting pulse wave index and a postprandial pulse wave index, and a learning model showing the relationship between the blood pressure value and the pulse wave associated with the blood pressure value is used.
- Control methods for electronic devices including.
- Appendix 15 A method of controlling an electronic device that generates a learning model used to estimate a subject's blood pressure and blood glucose levels. The relationship between the blood pressure value and the pulse wave associated with the blood pressure value, and the blood glucose level and the blood glucose level were associated with each other based on the index of the human fasting pulse wave and the index of the pulse wave after meals.
- a method of controlling an electronic device that includes a step of generating a learning model that shows the relationship with a pulse wave.
- [Appendix 16] A learning model generated based on a human fasting pulse wave index and a postprandial pulse wave index, the relationship between the blood pressure value and the pulse wave associated with the blood pressure value, and the blood glucose level. A step of using a learning model showing the relationship with the pulse wave associated with the blood glucose level, and A step of estimating the blood pressure level and blood glucose level of the subject based on the pulse wave index obtained by the sensor and the pulse wave index before meals of the subject and the pulse wave at other timings. Control methods for electronic devices, including. [Appendix 17] It is a control method of an electronic device provided with a sensor unit that acquires a pulse wave of a subject.
- Control methods including.
- Appendix 18 For electronic devices that generate learning models used to estimate a subject's blood pressure A program that executes a step of generating a learning model showing a relationship between a blood pressure value and a pulse wave associated with the blood pressure value based on a human fasting pulse wave index and a postprandial pulse wave index.
- the relationship between the blood pressure value and the pulse wave associated with the blood pressure value, and the blood glucose level and the blood glucose level were associated with each other based on the index of the human fasting pulse wave and the index of the pulse wave after meals.
- a program that runs. [Appendix 22] For electronic devices equipped with a sensor unit that acquires the pulse wave of the subject A step of transmitting the pulse wave acquired by the sensor unit or the index of the pulse wave and the information of the pulse wave before meals of the subject and the pulse wave at another timing or the index of the pulse wave to another electronic device. A program that runs.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Cardiology (AREA)
- Physiology (AREA)
- Epidemiology (AREA)
- Primary Health Care (AREA)
- Artificial Intelligence (AREA)
- Vascular Medicine (AREA)
- Databases & Information Systems (AREA)
- Data Mining & Analysis (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Psychiatry (AREA)
- Signal Processing (AREA)
- Emergency Medicine (AREA)
- Optics & Photonics (AREA)
- Evolutionary Computation (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
Description
被検者の血圧値の推定に用いられる学習モデルを生成する電子機器であって、
人間の第1時点の脈波の指標及び前記第1時点より後の第2時点の脈波の指標に基づいて、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを生成する。
人間の第1時点の脈波の指標及び前記第1時点より後の第2時点の脈波の指標に基づいて生成された学習モデルであって、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを用いて、
センサによって取得された脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波の指標に基づいて、
前記被検者の血圧値を推定する。
人間の第1時点の脈波の指標及び前記第1時点より後の第2時点の脈波の指標に基づいて生成された学習モデルであって、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを使用するステップと、
センサによって取得された脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波の指標に基づいて、前記被検者の血圧値を推定するステップと、
を含む。
電子機器に、
人間の第1時点の脈波の指標及び前記第1時点より後の第2時点の脈波の指標に基づいて生成された学習モデルであって、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを使用するステップと、
センサによって取得された脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波の指標に基づいて、前記被検者の血圧値を推定するステップと、
を実行させる。
(1)学習モデル生成フェーズ:被検者の血圧値(及び血糖値)の推定に用いられる学習モデル(推定式)を、例えばAI(Artificial Intelligence)を用いた機械学習などによって生成するフェーズ
(2)被験者の血圧値(及び血糖値)推定フェーズ:(1)において生成された学習モデル(推定式)を用いて、電子機器1によって取得された脈波に基づいて被験者の血圧値(及び血糖値)推定するフェーズ
以下、これらのフェーズについて、より詳細に説明する。
第1パターン:食前の脈波の実測値、及び空腹時の血糖値の実測値、並びに、食後の脈波の実測値
第2パターン:食前の脈波の実測値、及び空腹時の血圧値実測値、並びに、食後の脈波の実測値
第3パターン:食前の脈波の実測値、及び、食後の脈波の実測値
上述のパターンは、それぞれ適宜組み合わせて用いてもよい。また、食前又は食後の脈波は、脈拍数としてもよいし、後述の脈波増大係数(A index)としてもよい。
また、電子機器1の制御部52は、脈波の指標から、糖脂質代謝、血糖値及び脂質値のうちの少なくともいずれか1つを推定するとしてよい。また、電子機器1は、被検者のダイエットの進行状況を監視するダイエットモニタ、若しくは、被検者の血糖値を監視する血糖計として機能してもよい。
[付記1]
被検者の血圧値の推定に用いられる学習モデルを生成する電子機器であって、
人間の空腹時の脈波の指標及び食後の脈波の指標に基づいて、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを生成する、電子機器。
[付記2]
人間の空腹時の脈波の指標及び食後の脈波の指標に基づいて生成された学習モデルであって、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを用いて、
センサによって取得された脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波の指標に基づいて、
前記被検者の血圧値を推定する、電子機器。
[付記3]
被検者の血圧値及び血糖値の推定に用いられる学習モデルを生成する電子機器であって、
人間の空腹時の脈波の指標及び食後の脈波の指標に基づいて、血圧値と前記血圧値に対応付けられた脈波との関係、及び、血糖値と前記血糖値に対応付けられた脈波との関係を示す学習モデルを生成する、電子機器。
[付記4]
人間の空腹時の脈波の指標及び食後の脈波の指標に基づいて生成された学習モデルであって、血圧値と前記血圧値に対応付けられた脈波との関係、及び、血糖値と前記血糖値に対応付けられた脈波との関係を示す学習モデルを用いて、
センサによって取得された脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波の指標に基づいて、
前記被検者の血圧値及び血糖値を推定する、電子機器。
[付記5]
前記学習モデルは、人間の空腹時の血圧値にも基づいて生成される、付記1から4のいずれかに記載の電子機器。
[付記6]
前記学習モデルは、人間の食後の血圧値にも基づいて生成される、付記1から5のいずれかに記載の電子機器。
[付記7]
前記学習モデルは、人間の空腹時の血糖値にも基づいて生成される、付記1から6のいずれかに記載の電子機器。
[付記8]
前記学習モデルは、人間の食後の血糖値にも基づいて生成される、付記1から7のいずれかに記載の電子機器。
[付記9]
前記学習モデルは、人間の食後の経過時間に応じて生成される、付記1から8のいずれかに記載の電子機器。
[付記10]
前記学習モデルは、人間の空腹時の状態か食後の状態かに応じて生成される、付記1から9のいずれかに記載の電子機器。
[付記11]
被検者の脈波を取得するセンサ部と、
前記センサ部によって取得された脈波又は当該脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波又は当該脈波の指標の情報を他の電子機器に送信する通信部と、
を備える電子機器。
[付記12]
前記脈波の指標は、前記脈波の前進波の大きさと前記脈波の反射波の大きさとの比を示す指標である、付記1から11のいずれかに記載の電子機器。
[付記13]
被検者の血圧値の推定に用いられる学習モデルを生成する電子機器の制御方法であって、
人間の空腹時の脈波の指標及び食後の脈波の指標に基づいて、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを生成するステップを含む、制御方法。
[付記14]
人間の空腹時の脈波の指標及び食後の脈波の指標に基づいて生成された学習モデルであって、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを使用するステップと、
センサによって取得された脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波の指標に基づいて、前記被検者の血圧値を推定するステップと、
を含む、電子機器の制御方法。
[付記15]
被検者の血圧値及び血糖値の推定に用いられる学習モデルを生成する電子機器の制御方法であって、
人間の空腹時の脈波の指標及び食後の脈波の指標に基づいて、血圧値と前記血圧値に対応付けられた脈波との関係、及び、血糖値と前記血糖値に対応付けられた脈波との関係を示す学習モデルを生成するステップを含む、電子機器の制御方法。
[付記16]
人間の空腹時の脈波の指標及び食後の脈波の指標に基づいて生成された学習モデルであって、血圧値と前記血圧値に対応付けられた脈波との関係、及び、血糖値と前記血糖値に対応付けられた脈波との関係を示す学習モデルを使用するステップと、
センサによって取得された脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波の指標に基づいて、前記被検者の血圧値及び血糖値を推定するステップと、
を含む、電子機器の制御方法。
[付記17]
被検者の脈波を取得するセンサ部を備える電子機器の制御方法であって、
前記センサ部によって取得された脈波又は当該脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波又は当該脈波の指標の情報を他の電子機器に送信するステップを含む、制御方法。
[付記18]
被検者の血圧値の推定に用いられる学習モデルを生成する電子機器に、
人間の空腹時の脈波の指標及び食後の脈波の指標に基づいて、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを生成するステップを実行させる、プログラム。
[付記19]
電子機器に、
人間の空腹時の脈波の指標及び食後の脈波の指標に基づいて生成された学習モデルであって、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを使用するステップと、
センサによって取得された脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波の指標に基づいて、前記被検者の血圧値を推定するステップと、
を実行させる、プログラム。
[付記20]
被検者の血圧値及び血糖値の推定に用いられる学習モデルを生成する電子機器に、
人間の空腹時の脈波の指標及び食後の脈波の指標に基づいて、血圧値と前記血圧値に対応付けられた脈波との関係、及び、血糖値と前記血糖値に対応付けられた脈波との関係を示す学習モデルを生成するステップを実行させる、プログラム。
[付記21]
電子機器に、
人間の空腹時の脈波の指標及び食後の脈波の指標に基づいて生成された学習モデルであって、血圧値と前記血圧値に対応付けられた脈波との関係、及び、血糖値と前記血糖値に対応付けられた脈波との関係を示す学習モデルを使用するステップと、
センサによって取得された脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波の指標に基づいて、前記被検者の血圧値及び血糖値を推定するステップと、
を実行させる、プログラム。
[付記22]
被検者の脈波を取得するセンサ部を備える電子機器に、
前記センサ部によって取得された脈波又は当該脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波又は当該脈波の指標の情報を他の電子機器に送信するステップを実行させる、プログラム。
10 筐体
11 第1当接部
12 第2当接部
13 スイッチ
14 突出部
20 支持部
22 背面部
24 伸長部
26 受け部
30 基板
40 報知部
50 センサ
52 制御部
54 記憶部
56 通信部
60 バッテリ
70 弾性部材
80 台座部
90 リストレスト部
92 リスト当接部
150 携帯端末
151 サーバ
Claims (12)
- 被検者の血圧値の推定に用いられる学習モデルを生成する電子機器であって、
人間の第1時点の脈波の指標及び前記第1時点より後の第2時点の脈波の指標に基づいて、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを生成する、電子機器。 - 人間の第1時点の脈波の指標及び前記第1時点より後の第2時点の脈波の指標に基づいて生成された学習モデルであって、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを用いて、
センサによって取得された脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波の指標に基づいて、
前記被検者の血圧値を推定する、電子機器。 - 前記第1時点は空腹時であり、前記第2時点は食後である、請求項1又は2に記載の電子機器。
- 前記学習モデルは、前記第1時点の脈波の指標及び前記第2時点の脈波の指標に加え、前記第1時点の血圧値にも基づいて生成される、請求項1から3のいずれかに記載の電子機器。
- 前記学習モデルは、前記第1時点の脈波の指標及び前記第2時点の脈波の指標に加え、前記第2時点の血圧値にも基づいて生成される、請求項1から4のいずれかに記載の電子機器。
- 前記学習モデルは、前記第1時点の脈波の指標及び前記第2時点の脈波の指標に加え、前記第1時点の血糖値にも基づいて生成される、請求項1から5のいずれかに記載の電子機器。
- 前記学習モデルは、前記第1時点の脈波の指標及び前記第2時点の脈波の指標に加え、前記第2時点の血糖値にも基づいて生成される、請求項1から6のいずれかに記載の電子機器。
- 前記学習モデルは、人間の食後の経過時間に応じて生成される、請求項3に記載の電子機器。
- 前記学習モデルは、人間の空腹時の状態か食後の状態かに応じて生成される、請求項3又は8に記載の電子機器。
- 前記脈波の指標は、前記脈波の前進波の大きさと前記脈波の反射波の大きさとの比を示す指標である、請求項1から9のいずれかに記載の電子機器。
- 人間の第1時点の脈波の指標及び前記第1時点より後の第2時点の脈波の指標に基づいて生成された学習モデルであって、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを使用するステップと、
センサによって取得された脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波の指標に基づいて、前記被検者の血圧値を推定するステップと、
を含む、電子機器の制御方法。 - 電子機器に、
人間の第1時点の脈波の指標及び前記第1時点より後の第2時点の脈波の指標に基づいて生成された学習モデルであって、血圧値と前記血圧値に対応付けられた脈波との関係を示す学習モデルを使用するステップと、
センサによって取得された脈波の指標であって被検者の食前の脈波及び他のタイミングにおける脈波の指標に基づいて、前記被検者の血圧値を推定するステップと、
を実行させる、プログラム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/272,059 US20240071617A1 (en) | 2021-01-15 | 2022-01-12 | Electronic device |
JP2022575612A JPWO2022154019A1 (ja) | 2021-01-15 | 2022-01-12 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021-005250 | 2021-01-15 | ||
JP2021005250 | 2021-01-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022154019A1 true WO2022154019A1 (ja) | 2022-07-21 |
Family
ID=82448446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/000777 WO2022154019A1 (ja) | 2021-01-15 | 2022-01-12 | 電子機器 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20240071617A1 (ja) |
JP (1) | JPWO2022154019A1 (ja) |
WO (1) | WO2022154019A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080228089A1 (en) * | 2007-03-12 | 2008-09-18 | Samsung Electronics Co., Ltd. | Method and apparatus for cufflessly and non-invasively measuring wrist blood pressure in association with communication device |
US20160256117A1 (en) * | 2015-03-03 | 2016-09-08 | Samsung Electronics Co., Ltd. | Blood pressure measuring method and apparatus |
US20160338599A1 (en) * | 2015-05-22 | 2016-11-24 | Google, Inc. | Synchronizing Cardiovascular Sensors for Cardiovascular Monitoring |
WO2018003491A1 (ja) * | 2016-06-28 | 2018-01-04 | 京セラ株式会社 | 電子機器及び推定システム |
KR20200099248A (ko) * | 2019-02-13 | 2020-08-24 | 와이케이씨테크(주) | 피부 영상을 이용한 혈관탄성도와 부정맥 진단 방법 |
-
2022
- 2022-01-12 JP JP2022575612A patent/JPWO2022154019A1/ja active Pending
- 2022-01-12 WO PCT/JP2022/000777 patent/WO2022154019A1/ja active Application Filing
- 2022-01-12 US US18/272,059 patent/US20240071617A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080228089A1 (en) * | 2007-03-12 | 2008-09-18 | Samsung Electronics Co., Ltd. | Method and apparatus for cufflessly and non-invasively measuring wrist blood pressure in association with communication device |
US20160256117A1 (en) * | 2015-03-03 | 2016-09-08 | Samsung Electronics Co., Ltd. | Blood pressure measuring method and apparatus |
US20160338599A1 (en) * | 2015-05-22 | 2016-11-24 | Google, Inc. | Synchronizing Cardiovascular Sensors for Cardiovascular Monitoring |
WO2018003491A1 (ja) * | 2016-06-28 | 2018-01-04 | 京セラ株式会社 | 電子機器及び推定システム |
KR20200099248A (ko) * | 2019-02-13 | 2020-08-24 | 와이케이씨테크(주) | 피부 영상을 이용한 혈관탄성도와 부정맥 진단 방법 |
Also Published As
Publication number | Publication date |
---|---|
US20240071617A1 (en) | 2024-02-29 |
JPWO2022154019A1 (ja) | 2022-07-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6775002B2 (ja) | 電子機器 | |
JP6901901B2 (ja) | 保持具、測定装置及び測定方法 | |
US20230248250A1 (en) | Electronic device, system, and server | |
JP6228326B1 (ja) | 携帯端末装置、生体情報測定方法、及び生体情報測定システム | |
US20230404417A1 (en) | Electronic device | |
JP2020054880A (ja) | 電子機器及びセンサ部 | |
US11594118B2 (en) | Electronic device | |
WO2021131536A1 (ja) | 電子機器 | |
JP2023164654A (ja) | 電子機器、システム、及びプログラム | |
WO2022154019A1 (ja) | 電子機器 | |
WO2018100755A1 (ja) | 生体情報測定装置、生体情報測定方法、及び生体情報測定システム | |
JP7055849B2 (ja) | 測定方法及びシステム | |
JP2019193692A (ja) | 電子機器 | |
JP2020120794A (ja) | 電子機器 |
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: 22739424 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2022575612 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18272059 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 22739424 Country of ref document: EP Kind code of ref document: A1 |