CN109222932A - Device that is a kind of while recording motion information and ambulatory arterial changes of function - Google Patents
Device that is a kind of while recording motion information and ambulatory arterial changes of function Download PDFInfo
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- CN109222932A CN109222932A CN201811210384.4A CN201811210384A CN109222932A CN 109222932 A CN109222932 A CN 109222932A CN 201811210384 A CN201811210384 A CN 201811210384A CN 109222932 A CN109222932 A CN 109222932A
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- 238000012545 processing Methods 0.000 claims abstract description 25
- 108091008695 photoreceptors Proteins 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000001133 acceleration Effects 0.000 claims description 16
- 238000004458 analytical method Methods 0.000 claims description 12
- 210000001367 artery Anatomy 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000002354 daily effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000004219 arterial function Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000004218 vascular function Effects 0.000 description 4
- 210000000748 cardiovascular system Anatomy 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000011514 reflex Effects 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 2
- 230000007211 cardiovascular event Effects 0.000 description 2
- 230000002060 circadian Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000001994 temporal artery Anatomy 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000037198 cardiovascular physiology Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording 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
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
-
- 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
- A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1118—Determining activity level
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/683—Means for maintaining contact with the body
- A61B5/6831—Straps, bands or harnesses
-
- 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
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
-
- 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
- A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
Abstract
The present invention provides a kind of devices for recording motion information and ambulatory arterial changes of function simultaneously, described device includes: measurement module, physiological signal collection module, motion information acquisition module, signal processing module and signal display module, in which: the physiological signal collection module includes transmitting light source, photoreceptor, power circuit, power supply and shell；The motion information acquisition module is made of accelerometer, clock unit, communication unit, power supply and shell；The signal processing module by integral instrument amplifier, low-pass filter, analog-digital converter and singlechip group at；The signal display module is made of the display screen of computer or mobile terminal；The measurement module, physiological signal collection module, motion information acquisition module are connect with the signal processing module.Technical solution provided by the present application can simplify the operating process of user while improving registration accuracy.
Description
Technical field
The present invention relates to the technical fields of cardiovascular and cerebrovascular detection device, in particular to a kind of to record motion information simultaneously and move
The device of state arterial function variation.
Background technique
Cardiovascular system is complicated dynamical system, measures the conventional method limitation of organic disease very within the hospital
Greatly.Everyday environments are had left, the target of real-time dynamic monitoring is not achieved.It must be in daily life to the monitoring of cardiovascular system
It carries out within continuous 24 hours in living, work and movement, includes fortune to body movements various in daily life to measure cardiovascular system
Dynamic physiological reaction.This requires measure cardiovascular physiology information and corresponding body movement and motion information simultaneously.
There is dynamic electrocardiogram diagram technology to can recorde and detect 24 hours ecg informations at present.But there are no can be with
The detection device of continuous dynamically recording arteries information.
At present the method (being detected under quiescent condition) of Non-invasive detection arterial function have pressure application, ultrasonic blood flow mensuration,
Photoelectricity volume sphygmography etc..Above-mentioned measurement method cuts both ways: by pressure, position and behaviour as the pressure waves measurement genealogy of law is unified
Making the influences such as gimmick may cause that test result is less reproducible, and successively the conduction time needs of acquisition two-way pulse wave are contrasted
The electrocardio time；Equipment needed for ultrasonic blood flow mensuration is mostly bulky, and structure is complicated, high to operator's skill requirement.
Summary of the invention
The application's is designed to provide device that is a kind of while recording motion information and ambulatory arterial changes of function, can
While improving registration accuracy, simplify the operating process of user.
To achieve the above object, the application provides dress that is a kind of while recording motion information and ambulatory arterial changes of function
It sets, described device includes: measurement module, physiological signal collection module, motion information acquisition module, signal processing module and signal
Display module, in which:
The measurement module is used to measure the body surface distance of artery segment needed for pulse wave conduction speed；
The physiological signal collection module includes transmitting light source, photoreceptor, power circuit, power supply and shell, institute
State power supply and connect with the transmitting light source and the photoreceptor respectively by the power circuit, the transmitting light source with
The photoreceptor is mounted in the shell, for realizing the real-time dynamic acquisition of arterial pulse wave signal；
The motion information acquisition module is made of accelerometer, clock unit, communication unit, power supply and shell, is used for
Realize the acquisition of movement brief acceleration parameter；
The signal processing module is by integral instrument amplifier, low-pass filter, analog-digital converter and singlechip group at use
In realizing through software filtering to arterial pulse wave data and analysis processing, obtain arterial pulse wave conduction time, speed etc.
Information, and being handled by software filtering to moving acceleration data and analysis, obtain acceleration, acceleration variation,
The information such as limbs deformation trace, spatial attitude；
The signal display module is made of the display screen of computer or mobile terminal；
The measurement module, physiological signal collection module, motion information acquisition module connect with the signal processing module
It connects, and by treated, information is sent in the signal display module signal processing module.
Further, the transmitting light source issues near infrared light, and the near infrared light is absorbed by tissue and decays it
Afterwards, it is received by the photoreceptor.
Further, the integral instrument amplifier, for receive acquisition signal, and by the signal amplification after,
Input the low-pass filter；
The low-pass filter, for carrying out low-pass filtering to amplified signal, to remove in amplified signal
High frequency noise signal；
The analog-digital converter, for the analog signal after low-pass filtering to be converted to digital signal；
The single-chip microcontroller, for according to the digital signal, realizing at software filtering and the analysis of arterial pulse wave data
Reason, the software filtering of moving acceleration data and analysis processing.
Further, the measurement module is camera system or measuring scale.
Further, the transmitting light source is photodiode of the wave-length coverage in 850~1064nm.
Further, the photoreceptor is photodiode of the response wave length scope in 850~1064nm.
Further, the distance between the transmitting light source and the photoreceptor are 0.1cm~5cm, are arranged as
Single-point or multiple spot matrix type structure.
The application is put forward for the first time the pass of changing rule and the exercise intensity variation using the vascular function parameter of exercise induced
Join feature, explore human body artery vascular function with the scenes dynamic changes such as tranquillization, body movement, middle high-intensity exercise rule,
It is proposed the new method of continuous quiet/dynamic monitoring arterial function variation.The device be applicable to continuously to record daily life in 24 hours,
Work neutralize body movement amount in movement and measurement arterial system to the body movements of varying strengths various in daily life and
The physiological reaction of movement captures the circadian variation of physiological signal, finds one not acquired under quiescent condition in time
A little low probability cardiovascular events make up the conventional method limitation that organic disease is measured in hospital.Therefore, provided by the present application
Technical solution can simplify the operating process of user while improving registration accuracy.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural representation for recording the device of motion information and ambulatory arterial changes of function in the embodiment of the present invention simultaneously
Figure；
Fig. 2 is the structural schematic diagram of physiological signal collection module in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of motion information acquisition module in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of signal processing module in the embodiment of the present invention；
Fig. 5 is the design structure for recording the device of motion information and ambulatory arterial changes of function in the embodiment of the present invention simultaneously
Schematic diagram；
Fig. 6 is to record the device of motion information and ambulatory arterial changes of function in another embodiment of the present invention simultaneously to set
Count structural schematic diagram.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
The application provides device that is a kind of while recording motion information and ambulatory arterial changes of function, please refers to Fig. 1 to figure
4, described device includes: measurement module 1, physiological signal collection module 2, motion information acquisition module 3,4 and of signal processing module
Signal display module 5, in which:
The measurement module 1 is used to measure the body surface distance of artery segment needed for pulse wave conduction speed；
The physiological signal collection module 2 includes transmitting light source 21, photoreceptor 22, power circuit 23, power supply 24
With shell 25, the power supply 24 by the power circuit 23 respectively with the transmitting light source 21 and the photoreceptor 22
Connection, the transmitting light source 21 and the photoreceptor 22 are mounted in the shell 25；
The motion information acquisition module 3 is by accelerometer 31, clock unit 32, communication unit 33, power supply 34 and shell
35 are constituted；
The signal processing module 4 is by integral instrument amplifier 41, low-pass filter 42, analog-digital converter 43 and single-chip microcontroller
44 compositions, for realizing by software filtering to arterial pulse wave data and analysis processing, obtain arterial pulse wave conduction when
Between, the information such as speed, and handled by software filtering to moving acceleration data and analysis, obtain acceleration, acceleration
The information such as vector variation, limbs deformation trace, spatial attitude；
The signal display module 5 is made of the display screen of computer or mobile terminal；
The measurement module 1, physiological signal collection module 2, motion information acquisition module 3 with the signal processing module
4 connections, and by treated, information is sent in the signal display module 5 signal processing module 4.
In one embodiment, the transmitting light source issues near infrared light, the near infrared light absorbed by tissue and
After decaying, received by the photoreceptor.
In one embodiment, the integral instrument amplifier for receiving the signal of acquisition, and the signal is amplified
Later, the low-pass filter is inputted；
The low-pass filter, for carrying out low-pass filtering to amplified signal, to remove in amplified signal
High frequency noise signal；
The analog-digital converter, for the analog signal after low-pass filtering to be converted to digital signal；
The single-chip microcontroller, for according to the digital signal, realize through software filtering to arterial pulse wave data and
Analysis processing, obtains the information such as arterial pulse wave conduction time, speed, and pass through the software filtering to moving acceleration data
It is handled with analysis, obtains the information such as acceleration, acceleration variation, limbs deformation trace, spatial attitude.
In one embodiment, the measurement module is camera system or measuring scale.
In one embodiment, the transmitting light source is photodiode of the wave-length coverage in 850~1064nm.
In one embodiment, the photoreceptor is response wave length scope in photosensitive two pole of 850~1064nm
Pipe.
In one embodiment, the distance between the transmitting light source and the photoreceptor are 0.1cm~5cm,
It is arranged as single-point or multiple spot matrix type structure.
Referring to Fig. 5, in practical applications, the apparatus may include flexible resilient bandage 10 and being located at the flexible resilient
Sensor 20 on bandage, which can be designed according to above-mentioned physiological signal collection module, and the sensing
Device can be protected by the rectangle leather sheath 30 of outer layer.The silica gel cushion 40 of strip can be set above the sensor.?
In practical application, sensor can be fixed on human body surface by flexible resilient bandage by user, and subsequent, sensor can be adopted
Collect the sign data of human body.The sign data can be sent in matched data processing module, to carry out subsequent data
Processing.
Referring to Fig. 6, in practical applications, described device can also be the form of headphone.Specifically, such as Fig. 6 institute
Show, described device can be by the way that headphone and sensor to be combined, wherein sensor can be connected with headphone
It connects, and sensor can fit at arteria carotis and superficial temporal artery beating, to acquire arteria carotis, superficial temporal artery pulse is fought
Dynamic signal.Sensor can have the function of physiological signal collection module and motion information acquisition module, may be used also on headphone
To have the function of signal processing module and measurement module, so as to handle the signal that sensor acquires.
The application is put forward for the first time the pass of changing rule and the exercise intensity variation using the vascular function parameter of exercise induced
Join feature, explore human body artery vascular function with the scenes dynamic changes such as tranquillization, body movement, middle high-intensity exercise rule,
It is proposed the new method of continuous quiet/dynamic monitoring arterial function variation.The device be applicable to continuously to record daily life in 24 hours,
Work neutralize body movement amount in movement and measurement arterial system to the body movements of varying strengths various in daily life and
The physiological reaction of movement captures the circadian variation of physiological signal, finds one not acquired under quiescent condition in time
A little low probability cardiovascular events make up the conventional method limitation that organic disease is measured in hospital.Therefore, provided by the present application
Technical solution can simplify the operating process of user while improving registration accuracy.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (7)
1. a kind of device for recording motion information and ambulatory arterial changes of function simultaneously, which is characterized in that described device includes: to survey
Measure module, physiological signal collection module, motion information acquisition module, signal processing module and signal display module, in which:
The measurement module is used to measure the body surface distance of artery segment needed for pulse wave conduction speed；
The physiological signal collection module includes transmitting light source, photoreceptor, power circuit, power supply and shell, the electricity
Source is connect respectively by the power circuit with the transmitting light source and the photoreceptor, the transmitting light source and described
Photoreceptor is mounted in the shell, for realizing the real-time dynamic acquisition of arterial pulse wave signal；
The motion information acquisition module is made of accelerometer, clock unit, communication unit, power supply and shell, for realizing
Move the real-time dynamic acquisition of brief acceleration parameter；
The signal processing module is by integral instrument amplifier, low-pass filter, analog-digital converter and singlechip group at for real
It is now handled by software filtering to arterial pulse wave data and analysis, obtains arterial pulse wave conduction time, velocity information, with
And handled by software filtering to moving acceleration data and analysis, obtain acceleration, acceleration variation, limbs displacement
Track, spatial attitude information；
The signal display module is made of the display screen of computer or mobile terminal；
The measurement module, physiological signal collection module, motion information acquisition module are connect with the signal processing module, and
And by treated, information is sent in the signal display module signal processing module.
2. the apparatus according to claim 1, which is characterized in that the transmitting light source issues near infrared light, the near-infrared
After light is absorbed and decayed by tissue, received by the photoreceptor.
3. the apparatus according to claim 1, it is characterised in that:
The integral instrument amplifier inputs the low pass filtered for receiving the signal of acquisition, and by after signal amplification
Wave device；
The low-pass filter, for carrying out low-pass filtering to amplified signal, to remove the high frequency in amplified signal
Noise signal；
The analog-digital converter, for the analog signal after low-pass filtering to be converted to digital signal；
The single-chip microcontroller, for according to the digital signal, realizing software filtering and the analysis processing, fortune of arterial pulse wave data
The software filtering of dynamic acceleration information and analysis processing.
4. the apparatus according to claim 1, which is characterized in that the measurement module is camera system or measuring scale.
5. the apparatus according to claim 1, which is characterized in that the transmitting light source is wave-length coverage in 850~1064nm
Photodiode.
6. the apparatus according to claim 1, which is characterized in that the photoreceptor is response wave length scope 850
The photodiode of~1064nm.
7. the apparatus according to claim 1, which is characterized in that between the transmitting light source and the photoreceptor
Distance is 0.1cm~5cm, is arranged as single-point or multiple spot matrix type structure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018111832705 | 2018-10-11 | ||
| CN201811183270 | 2018-10-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109222932A true CN109222932A (en) | 2019-01-18 |
Family
ID=65053393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811210384.4A Pending CN109222932A (en) | 2018-10-11 | 2018-10-17 | Device that is a kind of while recording motion information and ambulatory arterial changes of function |
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| CN (1) | CN109222932A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105147259A (en) * | 2015-06-12 | 2015-12-16 | 中国科学院合肥物质科学研究院 | System and method for multi-segment large artery stiffness test |
| US20160081572A1 (en) * | 2014-09-19 | 2016-03-24 | Mocacare Corp. | Cardiovascular monitoring device |
| CN105792742A (en) * | 2013-11-27 | 2016-07-20 | 皇家飞利浦有限公司 | Device and method for obtaining pulse transit time and/or pulse wave velocity information of a subject |
| CN105916436A (en) * | 2014-01-16 | 2016-08-31 | 诺基亚技术有限公司 | Device and method for measuring arterial signals |
| CN106264495A (en) * | 2016-08-26 | 2017-01-04 | 中国科学院合肥物质科学研究院 | A kind of incidence arterial stiffness detecting system |
| WO2017143198A1 (en) * | 2016-02-18 | 2017-08-24 | Garmin Switzerland Gmbh | System and method to determine blood pressure |
| US20170245767A1 (en) * | 2016-02-25 | 2017-08-31 | Echo Labs, Inc. | Systems and methods for modified pulse transit time measurement |
-
2018
- 2018-10-17 CN CN201811210384.4A patent/CN109222932A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792742A (en) * | 2013-11-27 | 2016-07-20 | 皇家飞利浦有限公司 | Device and method for obtaining pulse transit time and/or pulse wave velocity information of a subject |
| CN105916436A (en) * | 2014-01-16 | 2016-08-31 | 诺基亚技术有限公司 | Device and method for measuring arterial signals |
| US20160081572A1 (en) * | 2014-09-19 | 2016-03-24 | Mocacare Corp. | Cardiovascular monitoring device |
| CN105147259A (en) * | 2015-06-12 | 2015-12-16 | 中国科学院合肥物质科学研究院 | System and method for multi-segment large artery stiffness test |
| WO2017143198A1 (en) * | 2016-02-18 | 2017-08-24 | Garmin Switzerland Gmbh | System and method to determine blood pressure |
| CN109069032A (en) * | 2016-02-18 | 2018-12-21 | 佳明瑞士有限责任公司 | System and method for determining blood pressure |
| US20170245767A1 (en) * | 2016-02-25 | 2017-08-31 | Echo Labs, Inc. | Systems and methods for modified pulse transit time measurement |
| CN106264495A (en) * | 2016-08-26 | 2017-01-04 | 中国科学院合肥物质科学研究院 | A kind of incidence arterial stiffness detecting system |
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