CN104970781B - A kind of ankle brachial index measurement apparatus, sphygmomanometer - Google Patents
A kind of ankle brachial index measurement apparatus, sphygmomanometer Download PDFInfo
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Abstract
The present invention relates to a kind of ankle brachial index measurement apparatus, sphygmomanometer, the present invention handles to obtain electrocardiosignal using first sensor array and second sensor array acquisition, and obtain two pulse signals using first sensor array and second sensor array acquisition, two Pulse transit times are obtained using electrocardiosignal and two pulse signals, two Pulse transit times and blood pressure model is recycled to obtain two pressure values afterwards, the ratio of the two blood pressures is ankle brachial index.Ankle brachial index and blood pressure can be conveniently obtained using the device and sphygmomanometer of the present invention, blood pressure cuff need not be used, uncomfortable sensation will not be brought to measured, while the precision of the ankle brachial index measured using device of the invention is very high, error is only 0.05% or so.
Description
Technical field
The invention belongs to biotic index determination techniques field, more particularly to a kind of ankle brachial index measurement apparatus, sphygmomanometer.
Background technology
Artery sclerosis is the complication to be linked together with hypertension, obesity, diabetes, high fat of blood etc., can cause painstaking effort
Pipe disease and apoplexy etc., and angiocardiopathy and apoplexy are exactly the major reason caused a disease and disabled, and at present just with surprising
Speed increase.With the development trend of China human mortality aging, this problem will be increasingly severe.Therefore early detection is set out
Arteries and veins hardens symptom and is prevented just to be particularly important.Arteriarctia degree is to detect the important indicator of artery sclerosis, ankle
Arm index (Ankle Brachial Index, ABI) is the important index for assessing arteriarctia degree, the inspection to this index
Survey plays the role of important for examination and assessment artery sclerosis.
In the prior art, ankle brachial index (ABI, Ankle Brachial Blood Pressure Index) is to use blood pressure
Measure device determines the upper limbs of person to be measured and the blood pressure of lower limb of clinostatism state respectively, and calculates their blood pressure ratio and obtain
.This method needs the inflatable and deflatable carry out blood pressure measurement of blood pressure cuff, and time of measuring is longer, and can give subject with
Come uncomfortable.
The content of the invention
It is an object of the invention to provide a kind of ankle brachial index measurement apparatus or sphygmomanometer, blood pressure can be conveniently measured
Or ankle brachial index, and uncomfortable sensation will not be brought to measured.
To realize above-mentioned goal of the invention, the invention discloses a kind of ankle brachial index measurement apparatus, described device includes the
One sensor array, second sensor array, electrocardiosignal conditioning module, pulse signal conditioning module and processor；
The first sensor array includes the first metal electrode and the first pulse wave sensor；
The second sensor array includes the second metal electrode and the second pulse wave sensor；
First metal electrode and the second metal electrode are connected with the electrocardiosignal conditioning module, the electrocardio letter
Number conditioning module is used to receiving the signal and the letter that is detected by second metal electrode by first metal electrode detection
Number, processing obtains an electrocardiosignal, and extracts the R ripples of the electrocardiosignal；
First pulse wave sensor and the second pulse wave sensor are connected with the pulse signal conditioning module, institute
State pulse signal conditioning module be used for receive the first pulse wave for being detected by first pulse wave sensor and by described the
Second pulse wave of two pulse wave sensors detection, and extract the information and described second of the peak point of first pulse wave
The information of the peak point of pulse wave；
The electrocardiosignal conditioning module and pulse signal conditioning module are connected with the processor, the processor root
The first pulse wave is calculated according to the R ripples of the electrocardiosignal of its reception and the information of peak point of first pulse wave
Conduction time；Calculated according to the information of the R ripples of the electrocardiosignal of its reception and the peak point of second pulse wave
Ankle is obtained to the second pulse wave translation time, and according to first pulse wave translation time and the second pulse wave translation time
Arm index.
Preferably, the processor includes conduction time computing unit, and it calculates the R ripples of the electrocardiosignal and described the
Time difference between the peak point of one pulse wave is as first pulse wave translation time；Calculate the R ripples of the electrocardiosignal
Time difference between the peak point of second pulse wave is as second pulse wave translation time.
Preferably, the processor also includes ankle brachial index computing unit, its using first pulse wave translation time,
The first blood pressure and the second blood pressure is calculated in second pulse wave translation time and blood pressure model, and calculate first blood pressure and
The ratio of second blood pressure, obtains the ankle brachial index；
Wherein described blood pressure model is：
BP1=a1*T1+b1
BP3=a3*T3+b3
In formula, a1, b1, a3, b3 are predefined parameter, and T1 is first pulse wave translation time, and T3 is described second
Pulse wave translation time, BP1 are first blood pressure, and BP3 is second blood pressure.
Preferably, first pulse wave sensor includes two light emitting diodes and a photoelectric sensor, and
First pulse wave sensor is arranged on first metal electrode；
Second pulse wave sensor includes two light emitting diodes and a photoelectric sensor, and described second
Pulse wave sensor is arranged on second metal electrode.
Preferably, described device also includes memory module, is connected with the processor.
Preferably, described device also includes power management module, input module, the display module being connected with the processor
And communication module.
Preferably, the letter of the information of the peak point of first pulse wave gradient maxima point of first pulse wave
Breath is replaced, and the information of the peak point of second pulse wave is replaced with the information of the gradient maxima point of second pulse wave.
A kind of sphygmomanometer, the sphygmomanometer include first sensor array, second sensor array, electrocardiosignal conditioning mould
Block, pulse signal conditioning module and processor；
The first sensor array includes the first metal electrode and the first pulse wave sensor；
The second sensor array includes the second metal electrode and the second pulse wave sensor；
First metal electrode and the second metal electrode are connected with the electrocardiosignal conditioning module, the electrocardio letter
Number conditioning module is used to receiving the signal and the letter that is detected by second metal electrode by first metal electrode detection
Number, processing obtains an electrocardiosignal, and extracts the R ripples of the electrocardiosignal；
First pulse wave sensor and the second pulse wave sensor are connected with the pulse signal conditioning module, institute
State pulse signal conditioning module be used for receive the first pulse wave for being detected by first pulse wave sensor and by described the
Second pulse wave of two pulse wave sensors detection, and extract the information and described second of the peak point of first pulse wave
The information of the peak point of pulse wave；
The electrocardiosignal conditioning module and pulse signal conditioning module are connected with the processor, the processor root
According to its reception the electrocardiosignal R ripples and first pulse wave peak point information calculate the first pulse transit
Time；Second arteries and veins is calculated according to the information of the R ripples of the electrocardiosignal of its reception and the peak point of second pulse wave
Fight ripple conduction time, and obtained according to first pulse wave translation time, the second pulse wave translation time and blood pressure model
First blood pressure and the second blood pressure.
Preferably, the blood pressure model is：
BP1=a1*T1+b1
BP3=a3*T3+b3
In formula, a1, b1, a3, b3 are predefined parameter, and T1 is first pulse wave translation time, and T3 is described second
Pulse wave translation time, BP1 are first blood pressure, and BP3 is second blood pressure.
Preferably, the letter of the information of the peak point of first pulse wave gradient maxima point of first pulse wave
Breath is replaced, and the information of the peak point of second pulse wave is replaced with the information of the gradient maxima point of second pulse wave.
The above-mentioned technical proposal of the present invention has the following advantages that：The present invention utilizes first sensor array and second sensor
Array acquisition handles to obtain electrocardiosignal, and obtains two pulses using first sensor array and second sensor array acquisition
Signal, two Pulse transit times are obtained using electrocardiosignal and two pulse signals, when recycling two pulse-transits afterwards
Between and blood pressure model can obtain two pressure values, the ratio of the two blood pressures is ankle brachial index.Utilize the dress of the present invention
Ankle brachial index and blood pressure can conveniently be obtained with sphygmomanometer by putting, it is not necessary to using blood pressure cuff, will not be brought to measured
Uncomfortable sensation, while the precision of the ankle brachial index measured using device of the invention is very high, error is only 0.05% or so.
Brief description of the drawings
Fig. 1 is the structural representation of the ankle brachial index measurement apparatus of the present invention；
Fig. 2 is the modular structure schematic diagram of the ankle brachial index measurement apparatus of the present invention；
Fig. 3 is the structural representation of first sensor array or second sensor array in the present invention；
Fig. 4 is processor and the circuit diagram of communication module in the present invention；
Fig. 5 is the circuit diagram of pulse Signal-regulated kinase in the present invention；
Fig. 6 is the circuit diagram of center telecommunications conditioning module of the present invention；
Fig. 7 is the circuit diagram of power management module in the present invention；
Fig. 8 is the oscillogram of center telecommunications number of the present invention and pulse signal；
Fig. 9 is the graph of a relation of pressure value and the first Pulse transit time in the present invention；
Figure 10 is the graph of a relation of pressure value and the second Pulse transit time in the present invention；
Figure 11 is the ankle brachial index and the graph of a relation of the ankle brachial index actually measured using the measurement device of invention.
Embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.Following examples
For illustrating the present invention, but it is not limited to the scope of the present invention.
The invention discloses a kind of ankle brachial index measurement apparatus, as shown in figure 1, described device includes first sensor battle array
Row, second sensor array, electrocardiosignal conditioning module, pulse signal conditioning module and processor；The first sensor
Array includes the first metal electrode (can be a sheet metal) 1 and the first pulse wave sensor 2；The second sensor battle array
Row include the second metal electrode (can be a sheet metal) 4 and the second pulse wave sensor 5；First metal electrode 1
It is connected with the second metal electrode 4 with the electrocardiosignal conditioning module, the electrocardiosignal conditioning module is used to receive by institute
The signal of the first metal electrode 1 detection and the signal by second metal electrode detection 4 are stated, processing obtains wholeheartedly telecommunications
Number, and extract the R ripples of the electrocardiosignal.
The pulse wave sensor 5 of first pulse wave sensor 2 and second is connected with the pulse signal conditioning module,
The pulse signal conditioning module is used to receive the first pulse wave for being detected by first pulse wave sensor 2 and by described
Second pulse wave of the second pulse wave sensor 5 detection, and extract the information of the peak point of first pulse wave and described
The information of the peak point of second pulse wave.
The electrocardiosignal conditioning module and pulse signal conditioning module are connected with the processor, the processor root
According to its reception the electrocardiosignal R ripples and first pulse wave peak point information calculate the first pulse transit
Time；Second arteries and veins is calculated according to the information of the R ripples of the electrocardiosignal of its reception and the peak point of second pulse wave
Fight ripple conduction time, and ankle brachial index is obtained according to first pulse wave translation time and the second pulse wave translation time.
3 be power switch in Fig. 1, for being switched on or switched off the power supply of ankle brachial index measurement apparatus.
Further, electrocardiosignal conditioning module be one, pulse signal conditioning module be two, as shown in Figure 2.First
Electrode and the second metal electrode are all connected with same electrocardiosignal conditioning module, handle to obtain one by electrocardiosignal conditioning module
The electrocardiosignal ripple of individual passage, Fig. 6 are the circuit diagram of electrocardiosignal conditioning module.First pulse wave sensor and the second pulse wave
Sensor connects different pulse signal conditioning modules respectively, obtains two pulse waves, and Fig. 5 is the electricity of pulse signal conditioning module
Lu Tu.
Further, the processor includes conduction time computing unit, its calculate the R ripples of the electrocardiosignal with it is described
Time difference between the peak point of first pulse wave is as first pulse wave translation time；Calculate the R of the electrocardiosignal
Time difference between the peak point of ripple and second pulse wave is as second pulse wave translation time.
Further, the processor also includes ankle brachial index computing unit, and it utilizes the first pulse wave translation time, the
The first blood pressure and the second blood pressure is calculated in two pulse wave translation times and blood pressure model, and calculates first blood pressure and institute
The ratio of the second blood pressure is stated, obtains the ankle brachial index；Wherein described blood pressure model is：
BP1=a1*T1+b1
BP3=a3*T3+b3
In formula, a1, b1, a3, b3 are predefined parameter, are the numerical value obtained using mass data, and T1 is described first
Pulse wave translation time, T3 are second pulse wave translation time.
Blood pressure ratio is calculated using following formula, for weighing atherosclerosis
Ratio=BP1/BP3=(a1*T1+b1)/(a3*T3+b3)
Further, first pulse wave sensor 2 include two LEDs 6,7 (be typically chosen it is infrared and
Red light wavelength) and a photoelectric sensor 8 (can be a photodiode), and first pulse wave sensor is set
It is placed on first metal electrode 1, or two light emitting diodes and these three parts of photoelectric sensor are around a circle
Metal electrode 1 (i.e. the first metal electrode)；Second pulse wave sensor is identical with the structure of the second pulse wave sensor, bag
It (can be the pole of photoelectricity two to include two light emitting diodes (being typically chosen infrared and red light wavelength) and a photoelectric sensor
Pipe), and second pulse wave sensor is arranged on second metal electrode, or two light emitting diodes and one
These three parts of photoelectric sensor enclose metal electrode (i.e. the second metal electrode) around one, as shown in Figure 3.
Further, described device also includes memory module, is connected with the processor, for storing processor transmission
Information (ankle brachial index, blood pressure, the first pulse wave translation time and second pulse wave translation time etc.).
Further, described device also includes the power management module, input module, display mould being connected with the processor
Block and communication module.Power management module, as shown in fig. 7, for for processor power, input module be used for configured transmission or
Instruct to processor, display module is used for information (relevant parameter, predefined parameter, ankle brachial index, blood pressure, the of video-stream processor
One pulse wave translation time and the second pulse wave translation time etc.)；Communication module is used to realize processor and other-end
Communication, preferably communication module can be Bluetooth transmission unit, for realization being wirelessly transferred closely.
Further, the information of the peak point of first pulse wave gradient maxima point of first pulse wave
Information replaces, and the information of the peak point of second pulse wave is with information generation of the gradient maxima point of second pulse wave
Replace.When the time of the gradient maxima point of the first pulse wave or the second pulse wave can be utilized to calculate corresponding pulse transit
Between (the first pulse wave translation time and the second pulse wave translation time).
In use, first sensor array and second sensor array contact two different parts of human body respectively
(typically contacting the two positions with left hand and forehead).The first metal electrode and second sensor array of first sensor array
The second metal electrode be connected respectively with two positions of human body, the electric signal (electrocardiosignal) of heart is in human body different parts
Potential difference can be formed, so as to gather the electrocardiosignal of a passage.According to photoplethysmographic principle, first sensor
The photoelectric sensor of array can gather the photoelectricity volume arteries and veins at two positions of human body with the photoelectric sensor of second sensor array
Fight ripple.
The electrocardiosignal of one passage and the volume pulsation wave signal of two passages by filtering, amplifying, after digital-to-analogue conversion,
Deliver to processor.Processor is handled data, and with display, data storage and data-transformation facility.Fig. 4 is processor
Partial circuit diagram, processor will be handled the signal obtained, obtain the index for weighing hemadostewnosis degree.First will
R ripple extractions are carried out, R-Wave of ECG Signal is a very significant characteristic point, is carved at the beginning of characterizing a heartbeat.And pulse
After the peak value or gradient maxima of ripple can characterize cardiac pumping, at the time of blood reaches.As shown in figure 8, obtain pulse wave
Time difference between wave crest point and ecg-r wave can obtain pulse wave translation time.Represent that top sensor is gathered with T1
Pulse wave in human fingers conduction time (i.e. the first pulse wave translation time).The head position that side sensor gathered is represented with T3
Pulse wave translation time (i.e. the second pulse wave translation time).And T2=T3-T1, the conduction time for representing two pulse waves are poor
It is different.Foundation pulse wave translation time and the positively related principle of blood pressure, the pressure value at finger and forehead position can be obtained.
By the experiment of a large amount of subjects, a series of experimental data is obtained.Fig. 9 shows pressure value (systolic pressure
MmHg) and the first pulse wave translation time T1 (PWTT/ms) scatter diagram (graph of a relation), Figure 10 shows pressure value (systolic pressure
MmHg) and the second pulse wave translation time T3 (PWTT/ms) scatter diagram (graph of a relation), it can be seen that pulse wave pass to the time and
Pressure value has the correlation of height.Figure 11 shows Ratio (using the ankle brachial index ABI of the measurement device of the present invention) and profit
The ABI obtained with conventional method or actual measurement scatter diagram (graph of a relation), it can be seen that both also has good correlation
Property, and the ABI errors obtained using this method are 0.05 or so.Each point is corresponding measurement point in Fig. 9,10, and straight line is
The straight line to be formed is fitted according to corresponding scatterplot.Each point is corresponding measurement point in Figure 11, and straight line is two kinds of measurement results
Isopleth, it is smaller with the more near then error of distance of the line.
The invention also discloses a kind of sphygmomanometer, a kind of sphygmomanometer of sphygmomanometer, it is characterised in that the sphygmomanometer bag
Include first sensor array, second sensor array, electrocardiosignal conditioning module, pulse signal conditioning module and processor；
The first sensor array includes the first metal electrode and the first pulse wave sensor；The second sensor array includes
Second metal electrode and the second pulse wave sensor；First metal electrode and the second metal electrode are believed with the electrocardio
The connection of number conditioning module, the electrocardiosignal conditioning module be used to receiving by first metal electrode detection signal and by
The signal of the second metal electrode detection, processing obtains an electrocardiosignal, and extracts the R ripples of the electrocardiosignal；Described
One pulse wave sensor and the second pulse wave sensor are connected with the pulse signal conditioning module, the pulse signal conditioning
Module is used to receive by the first pulse wave of first pulse wave sensor detection and by second pulse wave sensor
Second pulse wave of detection, and extract the information of the peak point of first pulse wave and the peak point of second pulse wave
Information.
The electrocardiosignal conditioning module and pulse signal conditioning module are connected with the processor, the processor root
According to its reception the electrocardiosignal R ripples and first pulse wave peak point information calculate the first pulse transit
Time；Second arteries and veins is calculated according to the information of the R ripples of the electrocardiosignal of its reception and the peak point of second pulse wave
Fight ripple conduction time, and obtained according to first pulse wave translation time, the second pulse wave translation time and blood pressure model
First blood pressure and the second blood pressure, wherein the pulse wave translation time is the R ripples of the electrocardiosignal and the peak of the pulse wave
It is worth the time difference of point.
Further, the processor includes conduction time computing unit, its calculate the R ripples of the electrocardiosignal with it is described
Time difference between the peak point of pulse wave is as the pulse wave translation time.
Further, the blood pressure model is：
BP1=a1*T1+b1
BP3=a3*T3+b3
In formula, a1, b1, a3, b3 are predefined parameter, and T1 is first pulse wave translation time, and T3 is described second
Pulse wave translation time.
Further, the pulse wave sensor includes two light emitting diodes and a photoelectric sensor, and institute
Pulse wave sensor is stated to be arranged on first metal electrode.
Further, the sphygmomanometer also includes memory module, is connected with the processor, for storing processor transmission
Information (blood pressure etc.).
Further, the sphygmomanometer also includes the power management module, input module, display being connected with the processor
Module and communication module.Power management module is used to power for processor, and input module is used to transmit predefined parameter or instruction
To processor, display module is used for information (relevant parameter, predefined parameter, ankle blood pressure, the pulse wave translation time of video-stream processor
Deng)；Communication module is used to realize that processor communicates with other-end, and preferably communication module can be Bluetooth transmission unit, use
In realization being wirelessly transferred closely.
Further, the information of the peak point of first pulse wave gradient maxima point of first pulse wave
Information replaces, and the information of the peak point of second pulse wave is with information generation of the gradient maxima point of second pulse wave
Replace.When the time of the gradient maxima point of the first pulse wave or the second pulse wave can be utilized to calculate corresponding pulse transit
Between (the first pulse wave translation time and the second pulse wave translation time).
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (8)
1. a kind of ankle brachial index measurement apparatus, it is characterised in that described device includes first sensor array, second sensor battle array
Row, electrocardiosignal conditioning module, pulse signal conditioning module and processor；
The first sensor array includes the first metal electrode and the first pulse wave sensor；
The second sensor array includes the second metal electrode and the second pulse wave sensor；
First metal electrode and the second metal electrode are connected with the electrocardiosignal conditioning module, and the electrocardiosignal is adjusted
Module is managed to be used to receive the signal by first metal electrode detection and the signal by second metal electrode detection, place
Reason obtains an electrocardiosignal, and extracts the R ripples of the electrocardiosignal；
First pulse wave sensor and the second pulse wave sensor are connected with the pulse signal conditioning module, the arteries and veins
Signal-regulated kinase of fighting is used to receive by the first pulse wave of first pulse wave sensor detection and by second arteries and veins
Second pulse wave of wave sensor of fighting detection, and extract the information of the peak point of first pulse wave and second pulse
The information of the peak point of ripple；
The electrocardiosignal conditioning module and pulse signal conditioning module are connected with the processor, and the processor is according to it
The first pulse transit is calculated in the information of the R ripples of the electrocardiosignal received and the peak point of first pulse wave
Time；The is calculated according to the information of the R ripples of the electrocardiosignal of its reception and the peak point of second pulse wave
Two pulse wave translation times, and ankle arm is obtained according to first pulse wave translation time and the second pulse wave translation time and referred to
Number；
The processor also includes ankle brachial index computing unit, and it utilizes first pulse wave translation time, the second pulse wave
The first blood pressure and the second blood pressure is calculated in conduction time and blood pressure model, and calculates first blood pressure and second blood
The ratio of pressure, obtain the ankle brachial index；
Wherein described blood pressure model is：
BP1=a1*T1+b1
BP3=a3*T3+b3
In formula, a1, b1, a3, b3 are predefined parameter, and T1 is first pulse wave translation time, and T3 is second pulse
Ripple conduction time, BP1 are first blood pressure, and BP3 is second blood pressure.
2. device according to claim 1, it is characterised in that the processor includes conduction time computing unit, and it is counted
The time difference between the R ripples of the electrocardiosignal and the peak point of first pulse wave is calculated as first pulse transit
Time；The time difference between the R ripples of the electrocardiosignal and the peak point of second pulse wave is calculated as second arteries and veins
Fight ripple conduction time.
3. device according to claim 1, it is characterised in that first pulse wave sensor includes two light-emitting diodes
Pipe and a photoelectric sensor, and first pulse wave sensor is arranged on first metal electrode；
Second pulse wave sensor includes two light emitting diodes and a photoelectric sensor, and second pulse
Wave sensor is arranged on second metal electrode.
4. device according to claim 1, it is characterised in that described device also includes memory module, with the processor
Connection.
5. device according to claim 1, it is characterised in that described device also includes the power supply being connected with the processor
Management module, input module, display module and communication module.
6. according to the device described in any one of claim 1 to 5, it is characterised in that the letter of the peak point of first pulse wave
Breath is replaced with the information of the gradient maxima point of first pulse wave, described in the information use of the peak point of second pulse wave
The information of the gradient maxima point of second pulse wave replaces.
7. a kind of sphygmomanometer, it is characterised in that the sphygmomanometer includes first sensor array, second sensor array, electrocardio
Signal-regulated kinase, pulse signal conditioning module and processor；
The first sensor array includes the first metal electrode and the first pulse wave sensor；
The second sensor array includes the second metal electrode and the second pulse wave sensor；
First metal electrode and the second metal electrode are connected with the electrocardiosignal conditioning module, and the electrocardiosignal is adjusted
Module is managed to be used to receive the signal by first metal electrode detection and the signal by second metal electrode detection, place
Reason obtains an electrocardiosignal, and extracts the R ripples of the electrocardiosignal；
First pulse wave sensor and the second pulse wave sensor are connected with the pulse signal conditioning module, the arteries and veins
Signal-regulated kinase of fighting is used to receive by the first pulse wave of first pulse wave sensor detection and by second arteries and veins
Second pulse wave of wave sensor of fighting detection, and extract the information of the peak point of first pulse wave and second pulse
The information of the peak point of ripple；
The electrocardiosignal conditioning module and pulse signal conditioning module are connected with the processor, and the processor is according to it
When the information of the R ripples of the electrocardiosignal received and the peak point of first pulse wave calculates the first pulse transit
Between；Second pulse is calculated according to the information of the R ripples of the electrocardiosignal of its reception and the peak point of second pulse wave
Ripple conduction time, and obtain according to first pulse wave translation time, the second pulse wave translation time and blood pressure model
One blood pressure and the second blood pressure；
The blood pressure model is：
BP1=a1*T1+b1
BP3=a3*T3+b3
In formula, a1, b1, a3, b3 are predefined parameter, and T1 is first pulse wave translation time, and T3 is second pulse
Ripple conduction time, BP1 are first blood pressure, and BP3 is second blood pressure.
8. sphygmomanometer according to claim 7, it is characterised in that described in the information of the peak point of first pulse wave is used
The information of the gradient maxima point of first pulse wave replaces, the information of the peak point of second pulse wave second pulse
The information of the gradient maxima point of ripple replaces.
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| KR102411658B1 (en) | 2015-01-15 | 2022-06-21 | 삼성전자주식회사 | Apparatus for detecting information of the living body |
| KR102384225B1 (en) | 2015-03-06 | 2022-04-07 | 삼성전자주식회사 | System and method for sensing blood pressure |
| KR102434701B1 (en) | 2015-09-01 | 2022-08-22 | 삼성전자주식회사 | Apparatus and method for acquiring bio- information and apparatus for detecting bio- information |
| CN106175735B (en) * | 2016-08-11 | 2019-07-19 | 上海芯歌智能科技有限公司 | Non-invasive blood pressure detection device, method and wearable electronic device |
| KR102655671B1 (en) * | 2016-10-12 | 2024-04-05 | 삼성전자주식회사 | Apparatus and method for estimating bio-information |
| CN108403101A (en) * | 2018-03-27 | 2018-08-17 | 中国科学院深圳先进技术研究院 | A kind of model training method and device, the method and device for measuring blood pressure |
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| CN1849998A (en) * | 2006-05-26 | 2006-10-25 | 中国人民解放军空军航空医学研究所 | Method and apparatus for continuously measuring blood pressure |
| CN201088579Y (en) * | 2007-08-06 | 2008-07-23 | 北京麦邦光电仪器有限公司 | Device for checking and evaluating arteriosclerosis |
| CN201213789Y (en) * | 2008-07-11 | 2009-04-01 | 上海艾迅医疗设备有限公司 | System for simultaneously detecting and displaying human upper, lower limbs and aorta PWV values |
| CN102008296A (en) * | 2010-12-24 | 2011-04-13 | 吉林大学 | Device and method for measuring arterial blood pressures based on pulse wave signals and electrocardiosignals |
| WO2014132713A1 (en) * | 2013-02-26 | 2014-09-04 | 株式会社村田製作所 | Pulse wave propagation time calculation device |
Family Cites Families (1)
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| KR101007354B1 (en) * | 2008-08-25 | 2011-01-13 | 한국전자통신연구원 | Apparatus and method for measuring blood presure |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1849998A (en) * | 2006-05-26 | 2006-10-25 | 中国人民解放军空军航空医学研究所 | Method and apparatus for continuously measuring blood pressure |
| CN201088579Y (en) * | 2007-08-06 | 2008-07-23 | 北京麦邦光电仪器有限公司 | Device for checking and evaluating arteriosclerosis |
| CN201213789Y (en) * | 2008-07-11 | 2009-04-01 | 上海艾迅医疗设备有限公司 | System for simultaneously detecting and displaying human upper, lower limbs and aorta PWV values |
| CN102008296A (en) * | 2010-12-24 | 2011-04-13 | 吉林大学 | Device and method for measuring arterial blood pressures based on pulse wave signals and electrocardiosignals |
| WO2014132713A1 (en) * | 2013-02-26 | 2014-09-04 | 株式会社村田製作所 | Pulse wave propagation time calculation device |
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