CN107961001A - Appraisal procedure, device and the atherosclerosis detector of Degree of arteriosclerosis - Google Patents
Appraisal procedure, device and the atherosclerosis detector of Degree of arteriosclerosis Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 206010003210 Arteriosclerosis Diseases 0.000 title claims abstract description 43
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- 201000001320 Atherosclerosis Diseases 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 210000001367 artery Anatomy 0.000 claims abstract description 24
- 208000034189 Sclerosis Diseases 0.000 claims abstract description 11
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- 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
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
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- 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
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Abstract
The present invention provides a kind of appraisal procedure of Degree of arteriosclerosis, device and atherosclerosis detector, it is related to artery sclerosis detection technique field, this method includes：Gather the PPG signals of at least two body part of destination object；Detect the characteristic point of each PPG signals；According to the characteristic point of each PPG signals, the pulse wave conduction speed of the destination object is determined；Based on the pulse wave conduction speed pre-established and the correspondence at age, the Degree of arteriosclerosis of the destination object is assessed.The mode of present invention detection Degree of arteriosclerosis is more simple and feasible.
Description
Technical field
The present invention relates to artery sclerosis detection technique field, more particularly, to a kind of appraisal procedure of Degree of arteriosclerosis,
Device and atherosclerosis detector.
Background technology
Angiocardiopathy is to seriously endanger the major disease of human health, and arteriosclerotic lesion is most of cardiovascular diseases
The common pathophysiological basis of disease, the arteriosclerotic lesion of any body part may all cause the ischemic work(of respective regions
Can, such as coronary heart disease, cerebral apoplexy etc..Therefore, the hardenability for knowing artery is the key of Prevention of cardiovascular disease level.
Present artery sclerosis detection device is broadly divided into invasive detection and two class of Non-invasive detection, invasive detection device master
Degree of arteriosclerosis is detected by the way of arteriography, but the detection device based on angiography belongs to and has
Invasive operation, has the characteristics that detection of complex, expensive, sensitivity is low.Non-invasive detection equipment can be applied and be based on ultrasonic imaging
Vascular compliance detection the methods of, equally have cost it is high, it is complicated, need specialized guidance, be unfavorable for portable monitoring
The problems such as.
For existing equipment it is complex to the detection method of Degree of arteriosclerosis the problem of, not yet propose at present effective
Solution.
The content of the invention
In view of this, it is an object of the invention to provide a kind of appraisal procedure of Degree of arteriosclerosis, device and artery are hard
Change detector, to improve the problem of existing equipment is complex to the detection method of Degree of arteriosclerosis.
To achieve these goals, the technical solution that the embodiment of the present invention uses is as follows：
In a first aspect, an embodiment of the present invention provides a kind of appraisal procedure of Degree of arteriosclerosis, including：Gather target pair
As the PPG signals of at least two body parts；Detect the characteristic point of each PPG signals；According to the characteristic point of each PPG signals, determine
The pulse wave conduction speed of destination object；Based on the pulse wave conduction speed pre-established and the correspondence at age, mesh is assessed
Mark the Degree of arteriosclerosis of object.
Further, the step of PPG signals of above-mentioned at least two body part of collection destination object, including：Pass through photoelectricity
The PPG signals of at least two body part of volume pulsation wave collector synchronous acquisition destination object.
Further, the step of characteristic point of each PPG signals of above-mentioned detection, including：Each PPG signals are carried out at interference filtering
Reason；Detect the characteristic point of each PPG signals after interference filtering is handled.
Further, the step of characteristic point of each PPG signals of the above-mentioned detection after interference filtering is handled, including：Based on difference
Divide threshold method, detect the characteristic point of each PPG signals after interference filtering is handled, characteristic point includes PPG starting points, PPG peak points
With PPG first differential maximum of points.
Further, the above-mentioned characteristic point according to each PPG signals, the step of determining the pulse wave conduction speed of destination object,
Including：According to the time gap of individual features point in multiple PPG signals, pulse wave translation time is determined；According to what is obtained in advance
The biological information of destination object, determines the length of vessel of destination object；Biological information includes one kind in height, brachium and leg length
It is or a variety of；According to length of vessel and pulse wave translation time, the pulse wave conduction speed of destination object is determined.
Further, it is above-mentioned according to length of vessel and pulse wave translation time, determine the pulse wave conduction speed of destination object
The step of, including：Pulse wave conduction speed using the ratio of length of vessel and pulse wave translation time as destination object.
Further, the establishment step of above-mentioned pulse wave conduction speed and the correspondence at age includes：The default quantity of collection
Sample of users age and pulse wave conduction speed；Based on collection result, change of the pulse wave conduction speed with the age is drawn
Change curve.
Further, the step of Degree of arteriosclerosis of above-mentioned assessment destination object, including：From pulse wave conduction speed with year
The pulse wave conduction speed corresponding age of destination object is searched in the change curve in age；According to the pulse transit of destination object
At the speed corresponding age, assess the Degree of arteriosclerosis of destination object.
Second aspect, the embodiment of the present invention also provide a kind of apparatus for evaluating of Degree of arteriosclerosis, including：Signal acquisition mould
Block, for gathering the PPG signals of at least two body part of destination object；Characteristic point detection module, for detecting each PPG signals
Characteristic point；Conduction of velocity determining module, for the characteristic point according to each PPG signals, determines the pulse transit of destination object
Speed；Artery evaluation module, for based on the pulse wave conduction speed pre-established and the correspondence at age, assessing target pair
The Degree of arteriosclerosis of elephant.
The third aspect, an embodiment of the present invention provides a kind of atherosclerosis detector, including processor and photoelectricity volume arteries and veins
Fight ripple collector；Photoplethysmographic collector is used for the PPG signals for gathering at least two body part of destination object；Processing
Computer program is stored with device, computer program is performed when being run by processor such as the method for any one of first aspect.
An embodiment of the present invention provides a kind of appraisal procedure of Degree of arteriosclerosis, device and atherosclerosis detector, leads to
The characteristic point of the PPG signals of the multiple body parts of detected target object is crossed, can determine the pulse transit speed of the destination object
Degree, and then based on the pulse wave conduction speed pre-established and the correspondence at age, the artery for assessing the destination object is hard
Change degree.The detection method of this Degree of arteriosclerosis is eased feasible, is also applied for domestic medicine, by portable or wear
The PPG signals of formula equipment collection user body parts are worn, analyze PPG signals the artery sclerosis journey that can assess the user
Degree, user can easily know artery situation, improve the preventive effect to angiocardiopathy.
Other feature and advantage of the disclosure will illustrate in the following description, alternatively, Partial Feature and advantage can be with
Deduce from specification or unambiguously determine, or by implement the disclosure above-mentioned technology it can be learnt that.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in describing below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
Put, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 shows a kind of appraisal procedure flow chart for Degree of arteriosclerosis that the embodiment of the present invention is provided；
Fig. 2 shows a kind of signal acquisition schematic diagram that the embodiment of the present invention is provided；
Fig. 3 shows a kind of PPG characteristic points detects schematic diagram that the embodiment of the present invention is provided；
Fig. 4 shows a kind of pulse wave translation time schematic diagram that the embodiment of the present invention is provided；
Fig. 5 shows a kind of PWV distribution maps for different age group that the embodiment of the present invention is provided；
Fig. 6 shows a kind of structure diagram of the apparatus for evaluating for Degree of arteriosclerosis that the embodiment of the present invention is provided；
Fig. 7 shows a kind of structure diagram for atherosclerosis detector that the embodiment of the present invention is provided.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiment is part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, belong to the scope of protection of the invention.
Existing arteriosclerosis detecting method is mostly complex, and many testing principles are all the arterial vascular bullets of measurement
Property, the vascular compliance detection such as based on ultrasonic imaging, the totality based on reflective wave augmentation index quantitative response arterial system
Elasticity, arterial elasticity detection based on plane strain method etc., mostly cumbersome, it is not high to measure the accuracy of arterial elasticity, and
And the artery sclerosis assay device structures of the application above method are complicated, it is necessary to specialized guidance is just usable, are not easy to portable inspection
Survey, and cost is higher, it is difficult to applied in domestic medicine.
To improve the above problem, a kind of appraisal procedure of Degree of arteriosclerosis provided in an embodiment of the present invention, device and dynamic
Arteries and veins hardens detector, which can be applied in Wearable, can also be applied to such as hand being connected with signal picker
In the terminal devices such as mechanical, electrical brain, for assessing Degree of arteriosclerosis.The technology can use corresponding hardware and software to realize, with
Under describe in detail to the embodiment of the present invention.
Embodiment one：
A kind of appraisal procedure of Degree of arteriosclerosis is present embodiments provided, this method can be held by atherosclerosis detector
OK, which can be portable set, and in one embodiment, which is wearable
Equipment, in another embodiment, the atherosclerosis detector are the portable terminal device for including signal picker and processor, letter
Number collector and processor can be integrally disposed, can also physical separation set, in practical applications, which can also adopt
With mobile phone, tablet computer etc., portable inspectiont can be achieved.A kind of appraisal procedure of Degree of arteriosclerosis shown in Figure 1
Flow chart, specifically includes following steps：
Step S102, gathers the PPG signals of at least two body part of destination object.
In practical applications, can be by photoplethysmographic collector synchronous acquisition destination object (that is, positive receive
Tester) at least two body parts PPG (photoplethysmograph, photoplethysmographic) signal.Photoelectricity volume
Pulse wave collector namely above-mentioned signal picker, for gathering PPG signals.In order to make signal acquisition result more accurate, light
The signal sampling rate of Power Capacity pulse wave collector can be not less than 500Hz.
The body part of destination object can include but is not limited to：Finger, wrist, ear, toe, ankle etc.；For ease of
Understand, a kind of signal acquisition schematic diagram shown in Figure 2, illustrate collectable ear PPG, wrist PPG, finger tip PPG and
Toe point PPG；Due to the bilateral symmetry of human body, because in actual acquisition, and left ear PPG, auris dextra PPG etc. can be subdivided into.
Step S104, detects the characteristic point of each PPG signals.
Present embodiments provide a kind of embodiment of characteristic point detection：
(1) interference filtering processing is carried out to each PPG signals；That is, being pre-processed to the original PPG signals of collection, filter
The interference such as baseline drift caused by except being moved due to human body respiration etc..
(2) characteristic point of each PPG signal of the detection after interference filtering is handled.Specifically, difference threshold algorithm can be based on,
The characteristic point of each PPG signals after interference filtering is handled is detected, characteristic point includes PPG starting points (that is, PPG troughs), PPG peaks
It is worth point (that is, PPG wave crests) and PPG first differentials maximum of points (first derivative maximum).Specifically, it may refer to Fig. 3 institutes
A kind of PPG characteristic points detects schematic diagram shown, the A points in Fig. 3 are PPG starting points, and B points are PPG first differential maximum of points, C points
For PPG peak points.
Step S106, according to the characteristic point of each PPG signals, determines the pulse wave conduction speed of destination object.Due to human body
There is a certain distance, the PPG signals that each position measures also have certain difference, can specifically be embodied between each position
Time gap between the individual features point of PPG signals, such as, has between the wave crest of left ear PPG and the wave crest of left finesse PPG
Regular hour distance, has regular hour distance etc. between the trough of left ear PPG and the trough of wrist PPG.According to multiple
Time gap between PPG signals individual features point, and the body part corresponding to multiple PPG signals, it may be determined that pulse
Ripple conduction of velocity.
In specific implementation, step S106 is referred to following steps and determines pulse wave conduction speed：
(1) according to the time gap of individual features point in multiple PPG signals, pulse wave translation time is determined.Specifically, from
Being chosen in the PPG signals of collection can be with multiple PPG signal of comparative feature point, multiple PPG signals pair for comparative feature point
The body part answered is preferably body side, can be that left hand is left so that the corresponding PPG signals of two body parts compare as an example
Foot, right hand right crus of diaphragm, left ear left hand, the auris dextra right hand, left ear left foot, auris dextra right crus of diaphragm etc..Specifically, it may refer to one shown in Fig. 4
Kind pulse wave translation time schematic diagram, illustrates the corresponding PPG signals of two body parts in the figure, two-way PPG signals
Time gap between starting point is PTT_Bottom (also known as distance between trough), the time interval between the trough of two-way PPG signals
From for PTT_Peak (also known as corrugation pitch from), the distance between first derivative maximum of two-way PPG signals is PTT_
MaxDeri.Further, it is possible to which above three time gap is averaged, pulse wave translation time PTT (Pulse are obtained
Transit Time).If multiple PPG signals for comparing, obtained multiple time gaps can finally be averaged,
Determine PTT.
(2) biological information for the destination object that basis obtains in advance, determines the length of vessel of destination object；Biological information bag
Include the one or more in height, brachium and leg length.For example, blood vessel can be obtained according to height and the product of empirical scalar value
Length, or length of vessel is determined by the mode such as table look-up, each body counted by big data can be recorded in form and is believed
Cease corresponding length of vessel.
(3) according to length of vessel and pulse wave translation time, the pulse wave conduction speed of destination object is determined.Specifically,
Pulse wave conduction speed that can be using the ratio of length of vessel and pulse wave translation time as destination object.Assuming that length of vessel
For L, pulse wave translation time PTT, then pulse wave conduction speed PWV=L/PTT.
Step S108, based on the pulse wave conduction speed pre-established and the correspondence at age, assesses destination object
Degree of arteriosclerosis.
Specifically, pulse wave conduction speed and the correspondence at age can be obtained by way of big data statistics,
In a kind of embodiment, age and the pulse wave conduction speed of the sample of users of default quantity are gathered；Based on collection result, paint
Pulse wave conduction speed processed with the age change curve.Such as, 5000 people's above demographic datas are collected and is used for all age group
The statistics of PWV (Pulse Wave Velocity, pulse wave conduction speed), wherein each age bracket number is more than 50 people,
And curves of the PWV with change of age is drawn, a kind of PWV distribution maps of different age group shown in Fig. 5 are for details, reference can be made to, in the figure
Curves of the PWV with change of age is illustrated, shows average value curve, and two with average value+1SD and -1SD
Curve, wherein, 1SD represents a standard deviation, it can be seen that PWV increases with being incremented by for age.Empirical tests are known, young
PWV is 1200cm/s for each person, and the average PWV of old group is 1400cm/s, and then it is larger to show that PWV has for all ages and classes
Discrimination, it was demonstrated that the scheme that the present embodiment is proposed has feasibility.
Since abovementioned steps have determined that the pulse wave conduction speed of destination object, from pulse wave conduction speed with
The pulse wave conduction speed corresponding age of destination object is searched in the change curve at age；Further according to the pulse wave of destination object
The conduction of velocity corresponding age, you can assess the Degree of arteriosclerosis of destination object.Such as, the pulse transit speed of destination object
The corresponding age is spent more higher than the age of destination object, then the Degree of arteriosclerosis of destination object is higher.
In the above method of the present embodiment, by the characteristic point of the PPG signals of the multiple body parts of detected target object, just
It can determine that the pulse wave conduction speed of the destination object, so it is corresponding with the age based on the pulse wave conduction speed pre-established
Relation, assesses the Degree of arteriosclerosis of the destination object.The detection method of this Degree of arteriosclerosis is eased feasible, by
Measurable photoplethysmographic and perform the above method portable medical device or wearable device i.e. can be achieved, preferably
Cost is reduced, therefore can also be measured in domestic medicine by user's complete independently, user can easily know artery feelings
Condition, improves the preventive effect to angiocardiopathy.
The above method is not only simple and convenient, effectively reduces the cost of the artery sclerosis detection device using this method, and
It is this preferably to realize the assessment of body local and overall Degree of arteriosclerosis by the way of more PPG convergence analysis,
Make artery sclerosis testing result more comprehensively reliable.
Embodiment two：
It is dynamic an embodiment of the present invention provides one kind for the appraisal procedure of the Degree of arteriosclerosis provided in embodiment one
The apparatus for evaluating of arteries and veins hardenability, the device can be arranged on artery sclerosis detection device, a kind of artery shown in Figure 6
The structure diagram of the apparatus for evaluating of hardenability, including with lower module：
Signal acquisition module 602, for gathering the PPG signals of at least two body part of destination object；
Characteristic point detection module 604, for detecting the characteristic point of each PPG signals；
Conduction of velocity determining module 606, for the characteristic point according to each PPG signals, determines that the pulse wave of destination object passes
Lead speed；
Artery evaluation module 608, for based on the pulse wave conduction speed pre-established and the correspondence at age, assessment
The Degree of arteriosclerosis of destination object.
In the above device of the present embodiment, by the characteristic point of the PPG signals of the multiple body parts of detected target object, just
It can determine that the pulse wave conduction speed of the destination object, so it is corresponding with the age based on the pulse wave conduction speed pre-established
Relation, assesses the Degree of arteriosclerosis of the destination object.The detection method of this Degree of arteriosclerosis is eased feasible,
Suitable for domestic medicine, the PPG signals of user body parts are gathered by portable or Wearable, PPG signals are carried out
Analysis can assess the Degree of arteriosclerosis of the user, and user can easily know artery situation, improve to cardiovascular disease
The preventive effect of disease.
The technique effect of the device that the present embodiment is provided, its realization principle and generation is identical with previous embodiment, for letter
Describe, device embodiment part does not refer to part, refers to corresponding contents in preceding method embodiment.
Embodiment three：
Corresponding to the appraisal procedure and device of foregoing Degree of arteriosclerosis, a kind of artery sclerosis detection is present embodiments provided
Instrument, including processor and photoplethysmographic collector；
Photoplethysmographic collector is used for the PPG signals for gathering at least two body part of destination object；
Computer program is stored with processor, computer program performs embodiment one such as when being run by processor and provides
Degree of arteriosclerosis appraisal procedure.
Above-mentioned atherosclerosis detector can be portable set, in one embodiment, the atherosclerosis detector
For Wearable, in another embodiment, which is to include signal picker and processor just
Take terminal, signal picker and processor can be integrally disposed, can also physical separation set, in practical applications, the processing
Device can also use mobile phone, computer etc. to realize.
Fig. 7 is a kind of structure diagram of atherosclerosis detector provided in an embodiment of the present invention, including：Processor 70,
Memory 71, bus 72 and photoplethysmographic collector 73, processor 70, photoplethysmographic collector 73 and storage
Device 71 is connected by bus 72；Processor 70 is used to perform the executable module stored in memory 71, such as computer program.
Wherein, memory 71 may include high-speed random access memory (RAM, Random Access Memory),
Non-labile memory (non-volatile memory), for example, at least a magnetic disk storage may be further included.By extremely
A few photoplethysmographic collector 73 (can be wired or wireless connection) realize the system network element with it is at least one
Communication connection between other network elements, can use internet, wide area network, local network, Metropolitan Area Network (MAN) etc..
Bus 72 can be isa bus, pci bus or eisa bus etc..It is total that bus can be divided into address bus, data
Line, controlling bus etc..For ease of representing, only represented in Fig. 7 with a four-headed arrow, it is not intended that an only bus or one
The bus of type.
Photoplethysmographic collector 73 can gather the corresponding PPG signals of multiple body parts, and by wired or
Bus is wirelessly transferred to, so as to pass to processor and memory.
Wherein, memory 71 is used for storage program, and processor 70 performs the above method after execute instruction is received, preceding
State the method performed by the device that the stream process that any embodiment of the embodiment of the present invention discloses defines and can be applied to processor 70
In, or realized by processor 70.
Processor 70 is probably a kind of IC chip, has the disposal ability of signal.During realization, above-mentioned side
Each step of method can be completed by the integrated logic circuit of the hardware in processor 70 or the instruction of software form.Above-mentioned
Processor 70 can be general processor, including central processing unit (Central Processing Unit, abbreviation CPU), network
Processor (Network Processor, abbreviation NP) etc.；It can also be digital signal processor (Digital Signal
Processing, abbreviation DSP), application-specific integrated circuit (Application Specific Integrated Circuit, referred to as
ASIC), ready-made programmable gate array (Field-Programmable Gate Array, abbreviation FPGA) or other are programmable
Logical device, discrete gate or transistor logic, discrete hardware components.It can realize or perform in the embodiment of the present invention
Disclosed each method, step and logic diagram.General processor can be microprocessor or the processor can also be appointed
What conventional processor etc..The step of method with reference to disclosed in the embodiment of the present invention, can be embodied directly in hardware decoding processing
Device performs completion, or performs completion with the hardware in decoding processor and software module combination.Software module can be located at
Machine memory, flash memory, read-only storage, programmable read only memory or electrically erasable programmable memory, register etc. are originally
In the storage medium of field maturation.The storage medium is located at memory 71, and processor 70 reads the information in memory 71, with reference to
Its hardware completes the step of above method.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
Specific work process, may be referred to the corresponding process in previous embodiment, details are not described herein.
The calculating of the appraisal procedure of the Degree of arteriosclerosis that the embodiment of the present invention is provided, device and atherosclerosis detector
Machine program product, including the computer-readable recording medium of program code is stored, the instruction that said program code includes can use
In the method described in previous methods embodiment that performs, specific implementation can be found in embodiment of the method, and details are not described herein.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part to contribute to the prior art or the part of the technical solution can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment the method for the present invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
Finally it should be noted that：Embodiment described above, is only the embodiment of the present invention, to illustrate the present invention
Technical solution, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify the technical solution described in previous embodiment or can be light
It is readily conceivable that change, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
- A kind of 1. appraisal procedure of Degree of arteriosclerosis, it is characterised in that including：Gather the PPG signals of at least two body part of destination object；Detect the characteristic point of each PPG signals；According to the characteristic point of each PPG signals, the pulse wave conduction speed of the destination object is determined；Based on the pulse wave conduction speed pre-established and the correspondence at age, the artery sclerosis journey of the destination object is assessed Degree.
- 2. according to the method described in claim 1, it is characterized in that, collection destination object at least two body part The step of PPG signals, including：Pass through the PPG signals of at least two body part of photoplethysmographic collector synchronous acquisition destination object.
- 3. according to the method described in claim 1, it is characterized in that, the step of the characteristic point of each PPG signals of the detection, Including：Interference filtering processing is carried out to each PPG signals；Detect the characteristic point of each PPG signals after interference filtering is handled.
- 4. the according to the method described in claim 3, it is characterized in that, each PPG of the detection after interference filtering is handled The step of characteristic point of signal, including：Based on difference threshold algorithm, the characteristic point of each PPG signals after interference filtering is handled is detected, the characteristic point includes PPG starting points, PPG peak points and PPG first differential maximum of points.
- 5. according to the method described in claim 1, it is characterized in that, the characteristic point according to each PPG signals, determines institute The step of stating the pulse wave conduction speed of destination object, including：According to the time gap of individual features point in multiple PPG signals, pulse wave translation time is determined；According to the biological information of the destination object obtained in advance, the length of vessel of the destination object is determined；The body Information includes the one or more in height, brachium and leg length；According to the length of vessel and the pulse wave translation time, the pulse wave conduction speed of the destination object is determined.
- It is 6. according to the method described in claim 5, it is characterized in that, described according to the length of vessel and the pulse transit Time, the step of determining the pulse wave conduction speed of the destination object, including：Pulse wave conduction speed using the ratio of the length of vessel and the pulse wave translation time as the destination object.
- 7. according to the method described in claim 1, it is characterized in that, the pulse wave conduction speed and the correspondence at age Establishment step includes：The age of the sample of users of the default quantity of collection and pulse wave conduction speed；Based on collection result, change curve of the pulse wave conduction speed with the age is drawn.
- 8. the method according to the description of claim 7 is characterized in that Degree of arteriosclerosis of the assessment destination object Step, including：The pulse wave conduction speed pair of the destination object is searched in change curve from the pulse wave conduction speed with the age The age answered；According to the pulse wave conduction speed of the destination object corresponding age, the artery sclerosis journey of the destination object is assessed Degree.
- A kind of 9. apparatus for evaluating of Degree of arteriosclerosis, it is characterised in that including：Signal acquisition module, for gathering the PPG signals of at least two body part of destination object；Characteristic point detection module, for detecting the characteristic point of each PPG signals；Conduction of velocity determining module, for the characteristic point according to each PPG signals, determines that the pulse wave of the destination object passes Lead speed；Artery evaluation module, for based on the pulse wave conduction speed pre-established and the correspondence at age, assessing the mesh Mark the Degree of arteriosclerosis of object.
- 10. a kind of atherosclerosis detector, it is characterised in that including processor and photoplethysmographic collector；The photoplethysmographic collector is used for the PPG signals for gathering at least two body part of destination object；Computer program is stored with the processor, the computer program performs such as right when being run by the processor It is required that 1 to 8 any one of them method.
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| CN108852307A (en) * | 2018-05-24 | 2018-11-23 | 重庆理工大学 | A kind of non-contact noninvasive Arteriosclerosis detecting device |
| CN109730723A (en) * | 2019-03-11 | 2019-05-10 | 京东方科技集团股份有限公司 | Determine method, artery sclerosis detection device and the system of pulse transit time |
| CN110710960A (en) * | 2019-09-12 | 2020-01-21 | 东莞市康助医疗科技有限公司 | Arterial blood vessel age estimation method and device |
| CN110881967A (en) * | 2018-09-10 | 2020-03-17 | 深圳市迈迪优科技有限公司 | Non-invasive multi-segment peripheral arterial vessel elastic function detection method and instrument thereof |
| CN110960199A (en) * | 2019-12-24 | 2020-04-07 | 中国人民解放军陆军军医大学第一附属医院 | System for double-variable measurement of arteriosclerosis degree |
| CN111000537A (en) * | 2019-12-24 | 2020-04-14 | 中国人民解放军陆军军医大学第一附属医院 | Method for correcting influence of age, sex and blood pressure on pulse wave propagation speed |
| CN112274120A (en) * | 2020-10-28 | 2021-01-29 | 河北工业大学 | Noninvasive arteriosclerosis detection method and device based on one-way pulse wave |
| CN112274121A (en) * | 2020-10-28 | 2021-01-29 | 河北工业大学 | Noninvasive arteriosclerosis detection method and device based on multipath pulse waves |
| CN113229787A (en) * | 2021-03-22 | 2021-08-10 | 安庆师范大学 | Blood vessel age estimation and effectiveness evaluation method based on pulse signal shape characteristics |
| CN113303774A (en) * | 2020-02-26 | 2021-08-27 | Oppo广东移动通信有限公司 | Wearable equipment |
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| CN108852307A (en) * | 2018-05-24 | 2018-11-23 | 重庆理工大学 | A kind of non-contact noninvasive Arteriosclerosis detecting device |
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| CN111000537A (en) * | 2019-12-24 | 2020-04-14 | 中国人民解放军陆军军医大学第一附属医院 | Method for correcting influence of age, sex and blood pressure on pulse wave propagation speed |
| CN113303774A (en) * | 2020-02-26 | 2021-08-27 | Oppo广东移动通信有限公司 | Wearable equipment |
| CN112274120A (en) * | 2020-10-28 | 2021-01-29 | 河北工业大学 | Noninvasive arteriosclerosis detection method and device based on one-way pulse wave |
| CN112274121A (en) * | 2020-10-28 | 2021-01-29 | 河北工业大学 | Noninvasive arteriosclerosis detection method and device based on multipath pulse waves |
| CN113229787A (en) * | 2021-03-22 | 2021-08-10 | 安庆师范大学 | Blood vessel age estimation and effectiveness evaluation method based on pulse signal shape characteristics |
| US11863937B2 (en) | 2021-03-30 | 2024-01-02 | Sonova Ag | Binaural hearing system for providing sensor data indicative of a physiological property, and method of its operation |
| CN113598724A (en) * | 2021-09-03 | 2021-11-05 | 上海市高血压研究所 | Device for assessing cardiovascular autonomic nerve function |
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