CN208876506U - Pulse wave velocity device and blood pressure continuous measurement device - Google Patents
Pulse wave velocity device and blood pressure continuous measurement device Download PDFInfo
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- CN208876506U CN208876506U CN201820797518.6U CN201820797518U CN208876506U CN 208876506 U CN208876506 U CN 208876506U CN 201820797518 U CN201820797518 U CN 201820797518U CN 208876506 U CN208876506 U CN 208876506U
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Abstract
The utility model relates to a kind of pulse wave velocity device and blood pressure continuous measurement devices, the pulse wave velocity device includes fixed part and the first impedance measurement portion, the second impedance measurement portion, display screen and the first primary processor on fixed part, the first impedance measurement portion include first electrode array and the first measuring nose for obtaining the first human body impedance pulse wave；Second impedance measurement portion includes second electrode array and the second measuring nose for obtaining the second human body impedance pulse wave；First primary processor is connect with the first impedance measurement portion and the second impedance measurement portion, for receiving and obtaining pulse wave velocity according to the first human body impedance pulse wave and the second human body impedance pulse wave, is then exported to display screen and is shown.The utility model obtains pulse wave velocity by obtaining the first human body impedance pulse wave and the second human body impedance pulse wave, improves accuracy of measurement and conveniently checks measurement data, improves user experience.
Description
Technical field
The utility model relates to medical apparatus and instruments technical field, in particular to a kind of pulse wave velocity device and
Blood pressure continuous measurement device.
Background technique
Cardiovascular disease is the important threat of human health, comes the first place of the cause of death in China the dead every year.
Cardiovascular disease belongs to a chronic disease, there is a more long-term progressive process of curing the disease.Such as artery is with age
Start to harden with reasons such as living habits, start long spot, blood pressure gradually rises, and artery sclerosis is silted up.For having suffered from height
The people of blood pressure goes down for a long time if do not controlled rationally blood pressure by each target organ of grievous injury, such as blood vessel, heart, big
Brain, kidney etc. further result in blood pressure raising, finally jeopardize the normal work of each target organ, lead to the fatal heart and brain blood of serious acute
Pipe disease occurs.Therefore, for Hypertensive Population, the control of blood pressure is most important.And since blood pressure parameter is easy by environment
The influence of many factors such as condition, physical condition, discontinuously the result of measurement or single measurement is there are biggish difference, however blood pressure
Method for continuous measuring can measure blood pressure in each cardiac cycle, have more importantly meaning in medical research and clinic.
The method of blood pressure measurement is roughly divided into two class of the direct method of measurement and the indirect method of measurement at present.Although the direct method of measurement is surveyed
Amount is accurate, but invasive, is served only for clinical urgent patient.The indirect method of measurement is the beating by detecting arterial wall, capacity of blood vessel
The parameters such as variation obtain blood pressure indirectly.The indirect method of measurement can be divided into discontinuous mensuration and continous way mensuration two major classes again.
It with discontinuous mensuration of the oscillographic method for representative is measured premised on blood pressure of often fighting in measurement process is identical on Korotkoff's Sound method
To blood pressure be a certain particular moment pressure value, be not necessarily the representational pressure value of measured.
Continous way sphygmomanometry refers to the hurtless measure continuous BP measurement within certain a period of time, can measure blood pressure of often fighting
Value and continuous arterial blood pressure waveform, therefore more fully foundation is provided for clinical diagnosis and treatment.Non-invasive blood pressure at present
The method continuously measured mainly has vascular unloading technique, tensionapplanation method, pulse wave velocity method, pulse wave characteristic parameters method etc..Before
The two is typically necessary blood pressure air bag inflation subsidiary, and sensor positioning requirements are high, therefore portability and anti motion interference
It is very poor；The two is to study more continuous BP measurement method at present afterwards.And pulse wave characteristic point calculates blood pressure, surveys to pulse wave
The required precision of amount is very high, but pulse waveform feature will receive sensor position, position, limb action, surrounding tissue pair
Vascular compression etc. influences, and therefore, the repeatability measured in daily (non-clinical state) use is difficult to ensure.
Pulse velocity of wave measuring method is that have positive correlation between artery propagation rate and arterial pressure according to pulse wave
What feature proposed, arterial pressure value is extrapolated by measurement pulse wave velocity (PWV) indirectly.Pulse wave velocity can pass through pulse wave
Passing time calculates between 2 points in the artery.Early in 1878, Moens etc. turned out the pass of the almost linear between blood pressure and PWV
System.But until the eighties, Japanese's Tanaka ability first passage extrapolates arterial pressure value to the measurement of PWV.
Clinically, superficial arterial pulse wave at human body two can be measured by two pressure sensors being separated by a certain distance
Waveform calculate PWV, but this method is high for the positioning requirements of sensor, be unfavorable for portable use, such as day undergraduate course
Lin company VP1000 pulse wave velocity needs tester to lie low, and Maguire et al. is then by the finger tip and elbow of arm
Side measures PPG signal to obtain the PWV signal between two o'clock, its advantage is that the distance between two o'clock more accurate can measure,
But the disadvantage is that PPG signal (or based on pressure sensor etc.) is high to positioning requirements, thus influenced by limb motion, position,
And arm main artery waveform (arteria brachialis, radial artery) cannot be accurately obtained, and studies have shown that the aortic pulse wave velocity of human body
It is the most obvious with the linear relationship of blood pressure, and peripheral arterial is then easy to be influenced by the characteristic of surrounding tissue.It is obtained in pulse wave velocity
It takes in the case where being not easy, people transfer to seek through pulse wave translation time (PTT) come pre- measuring blood pressure.Such as United States Patent (USP) 5,
649,513,5,865,755 and 6,599,251, European patent 0413267, Chinese patent CN1293913A, CN1127939C, with
And DxTek equipment etc. is exactly pulse wave translation time (PTT) to speculate pressure value.Usually (ECG is electrocardio ECG signal
The abbreviation of electrocardiogram, means electrocardiogram, refers to heart in each cardiac cycle, by pacemaker, atrium, the heart
Room is in succession excited, along with bioelectric variation, draws the figure of the potential change of diversified forms from body surface by electrocardiograph
Shape) on reference point and the pulse wave signal of the same cardiac cycle on reference point determine PTT.Pulse wave can pass through pressure
Force snesor, PPG, impedance plethysmogram etc. obtain.Such as common blood pressure wrist-watch, generally obtained by ECG+PPG
PTT value, and then speculate pressure value.Although this method solves the problems, such as portability, and reduce for sensing device positioning accurate
The requirement of degree, but there are two big disadvantages: if 1) usually using the R wave crest point of ECG signal as the starting point of pulse transit, but
Actually the position and real pulse wave starting point (cardiac ejection point) centre there are two phases cardiac motion heart contractions beginning and is waited
Hold the systole phase, therefore there are time difference (PEP) for centre, and the time difference varies with each individual, there are uncertainty, so as to cause
The pressure value discreteness of estimation is larger；2) ECG signal measurement is more inconvenient；For example, if then being needed using chest leads in chest
Electrode slice is pasted, portable use is influenced.It is measured using both hands, such as blood pressure wrist-watch, then people is needed to pin both hands when measurement
Electrode slice could start to measure ECG signal.In fact, being equivalently employed without realization due to needing conscious two hand to press electrode
Continuous measurement.It is obtained with impedance plethysmogram signal instead of ECG disclosed in Chinese patent application CN201580046584.9
Cardiac ejection time point, it may be possible to the error of PEP time is partially removed, but both hands is still required to press electrode measurement,
Therefore continuous measurement characteristic is affected.
Non-invasive blood pressure measuring method common at present, such as classical Korotkoff's Sound method (corresponding mercurial sphygmomanometer), oscillographic method
And pulse wave succusion (corresponding electronic sphygmomanometer), acquisition signal location is typically all the arteria brachialis position of upper arm, and above-mentioned
All types of pulse wave velocities or conduction time method and device, except small part is for the clinical device operated by special messenger
Outside, the position for acquiring pulse wave signal, which is difficult to ensure, can collect human body main artery signal, such as arteria brachialis, radial artery,
Therefore it is affected there are the additional effect factor that a signal source position is different and introduces according to pulse wave between conventional method
Speed/conduction time speculates the accuracy of blood pressure.
In conclusion existing device and method, whether for pulse wave velocity/conduction time measurement itself, still
And then realize continuous BP measurement, it, cannot all in the presence of such as sensor positioning effects are big, anti motion interference is poor, portability is insufficient
Realize that really continuous measurement, the discrete big and signal acquisition position of measurement reproducibility and conventional method difference are big, by surrounding tissue
Influence a series of disadvantages such as big.
Utility model content
The technical problem to be solved by the present invention is to places in view of the deficiency of the prior art, provide a kind of arteries and veins
Wave velocity of fighting measuring device and blood pressure continuous measurement device.
The utility model solves the technological means that technical problem uses and is to provide a kind of pulse wave velocity device, wraps
It includes:
First impedance measurement portion, including first electrode array and the first measuring nose, first measuring nose with it is described
First electrode array connection, for obtaining the first human body impedance arteries and veins of human body first position defined by the first electrode array
It fights wave；
Second impedance measurement portion, including second electrode array and the second measuring nose, second measuring nose with it is described
Second electrode array connection, for obtaining the second human body impedance arteries and veins of human body second position defined by the second electrode array
It fights wave；
First primary processor, first primary processor and first impedance measurement portion and the second impedance measurement portion connect
It connects, for receiving and obtaining pulse wave velocity according to the first human body impedance pulse wave and the second human body impedance pulse wave；
Fixed part, first impedance measurement portion, the second impedance measurement portion and the first primary processor are set to the fixation
In portion；
Display screen, the display screen are set on the fixed part and are electrically connected with first primary processor.
It further, further include that wireless transmit/receive units described in wireless transmit/receive units are set on the fixed part and with described the
One primary processor connection, for establishing communication connection with external equipment.
Further, the fixed part be elastic fabric, be intended to be worn on human body limb, the first electrode array and
Second electrode array includes several flexible electrodes that human body impedance measuring is used on the elastic fabric, the flexible electrode
It is made using textile electrode or conductive rubber.
Further, the first electrode array includes at least 2 first excitation electrodes and 2 the first measuring electrodes, institute
It states the first excitation electrode and enters human body first position for emitting exciting current, first measuring electrode is for measuring 2 the
Voltage between one excitation electrode；The second electrode array includes at least 2 second excitation electrodes and 2 second measurement electricity
Pole, the second excitation electrode is for emitting exciting current to the human body second position, and second measuring electrode is for surveying
Voltage between 2 second excitation electrodes of amount.
Further, the first electrode array includes 8 first excitation electrodes and 8 the first measuring electrodes, and described the
One excitation electrode is used to emit in pairs exciting current and enters human body first position, and first measuring electrode is used in pairs
Voltage between same group of measurement of 2 first excitation electrodes；The second electrode array includes at least 8 second excitation electricity
Pole and 8 the second measuring electrodes, the second excitation electrode are used to emit in pairs exciting current to the human body second
Position, second measuring electrode are used to measure in pairs the voltage between same group of 2 second excitation electrodes.
Further, further include impedance processor, the impedance processor be connected to first impedance measurement portion and/or
Second impedance measurement portion is used between first primary processor by the first human body impedance pulse wave and/or the second people
Body impedance pulse wave is filtered, reduce noise processed after output to first primary processor.
Further, the elastic fabric is oversleeve, and the oversleeve is described for being wrapped in human body upper arm and/or forearm
Oversleeve is provided with first impedance measurement portion and the second impedance measurement portion, and the first electrode array is attached at human body first
Position, the second electrode array are attached at human body second position.
Further, the elastic fabric is footmuff, and the footmuff is used to wrap up the foot and/or shank of human body, described
Footmuff is provided with first impedance measurement portion and the second impedance measurement portion, and the first electrode array is attached at human body first
Position, the second electrode array are attached at human body second position.
It further, further include acceleration transducer, the acceleration transducer electrically connects with first primary processor
It connects, for identification the position posture of the human body first position and/or human body second position.
On the other hand, the utility model also provides a kind of blood pressure continuous measurement device, including the second primary processor and such as
Above-mentioned pulse wave velocity device, second primary processor are connect with first primary processor, described for receiving
The pulse wave velocity that first primary processor is sent is to obtain pressure value.
By adopting the above technical scheme, the utility model at least has the advantages that the utility model embodiment passes through
The first impedance measurement portion, the second impedance measurement portion and processor equipped with fixed part and on the fixed part, wherein
First impedance measurement portion fits in the first human body impedance pulse wave that human body first position is used to measure human body first position, described
Second impedance measurement portion fits in the second human body impedance pulse wave that human body second position is used to measure human body second position, described
Processor and first impedance measurement portion and the second impedance measurement portion are electrically connected, and the processor receives first human body
Impedance pulse wave and the second human body impedance pulse wave, then according to the first human body impedance pulse wave and the second human body impedance arteries and veins
Wave of fighting synchronizes analysis and obtains pulse wave translation time, is used to represent human body first with preset for the pulse wave translation time
Arteries length, which is analyzed and processed, between position and human body second position is calculated pulse wave velocity, then exports to aobvious
Display screen is shown.Traditional impedance pulse wave is considered to measure between the pulse wave of some limb segment, such as both hands, both feet, but
The measurement of section is cleverly converted measurement a little by the utility model, and two limb segment pulse waves are converted to the pulse of 2 limbs points
Wave realizes the precise measurement of pulse wave velocity to overcome traditional prejudice, improves accuracy of measurement, and user is facilitated to dress,
It carries and checks measurement data, improve user experience.
Detailed description of the invention
Fig. 1 is the structural representation that the utility model pulse wave velocity device one embodiment is worn on human arm
Figure.
Fig. 2 is the enlarged structure that the utility model pulse wave velocity device one embodiment is worn on human arm
Schematic diagram.
Fig. 3 is the logical construction schematic diagram of the utility model pulse wave velocity device one embodiment.
Fig. 4 is the logical construction schematic diagram of the utility model blood pressure continuous measurement device one embodiment.
Fig. 5 is the circuit diagram of the utility model blood pressure continuous measurement device one embodiment.
Fig. 6 is the knot that the utility model blood pressure continuous measurement device one embodiment the first impedance measurement portion configures 4 electrodes
Structure schematic diagram.
Fig. 7 is the knot that the utility model blood pressure continuous measurement device one embodiment the first impedance measurement portion configures 8 electrodes
Structure schematic diagram.
Fig. 8 is the knot that the utility model blood pressure continuous measurement device one embodiment the second impedance measurement portion configures 8 electrodes
Structure schematic diagram.
Fig. 9 is that the utility model blood pressure continuous measurement device the second impedance measurement of one embodiment portion is attached at human body second
The sectional view at position.
Figure 10 is the impedance pulse waveform schematic diagram that the utility model blood pressure continuous measurement device one embodiment measures.
Figure 11 is the structural schematic diagram of the utility model blood pressure continuous measurement device one embodiment oversleeve type.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Impedance plethysmogram or impedance bloodstream map analysis are to belong to well known technology, mainly pass through the measurement person
The impedance waveform of body region, to obtain further physiological parameter, such as heart rate (arteries and veins can be obtained for doing impedance cardiogram
Fight) and heart stroke etc., Electroencephalogram can obtain cerebral vessels physiological property etc.；Its basic physiological principle is people
When systemic heart is beated, causes blood periodically to fluctuate in the blood vessel, to change the impedance of tissue, therefore pass through impedance
Waveform can reflect the rhythmicity information that heart and blood flow in the blood vessel, be for impedance pulse wave.Impedance pulse wave
Although measuring pulse wave not with PPG method or pressure sensor method and being completely the same, blood can be reacted in blood vessel
The situation of middle flowing can determine that blood flow characteristic, the PPG are to utilize photoplethaysmography (PPG) by feature point extraction
Technology carries out the detection of human motion heart rate, is Infrared Non-destructive Testing technology, applies in biomedicine.
Fig. 1 to Figure 11 is please referred to, the utility model provides a kind of technical solution: a kind of pulse wave velocity device, packet
It includes:
First impedance measurement portion 1, including first electrode array 11 and the first measuring nose 12, first measuring nose 12
It is connect with the first electrode array 11, for obtaining first of human body first position defined by the first electrode array 11
Human body impedance pulse wave；
Second impedance measurement portion 2, including second electrode array 21 and the second measuring nose 22, second measuring nose 22
It is connect with the second electrode array 21, for obtaining second of human body second position defined by the second electrode array 21
Human body impedance pulse wave；
First primary processor 3, first primary processor 3 and first impedance measurement portion 1 and the second impedance measurement portion 2
Connection, for receiving and obtaining pulse wave velocity according to the first human body impedance pulse wave and the second human body impedance pulse wave；
Fixed part 4, first impedance measurement portion 1, the second impedance measurement portion 2 and the first primary processor 3 are set to described
On fixed part 4；
Display screen 7, the display screen 7 are set on the fixed part 4 and are electrically connected with first primary processor 3.
Preferably, first primary processor 3 is used for according to the first human body impedance pulse wave and the second human body impedance
Pulse wave obtains pulse wave translation time, and obtains pulse using the pulse wave translation time and default length of vessel as parameter
Wave velocity；Specifically, first primary processor 3 is used for according to the first human body impedance pulse wave and the second human body impedance arteries and veins
Wave of fighting obtains the pulse wave translation time of human body first position and human body second position, and then obtains arteries and veins divided by default length of vessel
It fights wave velocity, the default length of vessel is the human body first position to the equivalent length of arteries between human body second position
Degree, wherein first primary processor 3 as parameter and then derives pulse using pulse wave translation time and default length of vessel
Wave velocity belongs to the prior art.
Preferably, the pulse wave translation time is arrived using the first human body impedance pulse wave wave crest in the same cardiac cycle
The time difference of the wave crest of second human body impedance pulse wave；Or in the same cardiac cycle the first human body impedance pulse wave trough to
The time difference of the trough of two human body impedance pulse waves；Or above-mentioned first human body impedance pulse wave and the second human body impedance pulse wavelength-division
Time difference in the same cardiac cycle of waveform after other differential between trough；
Preferably, the arteries equivalent length of the human body first position to human body second position is first impedance
Between 11 central point of first electrode array of measurement portion 1 and 21 central point of second electrode array in the second impedance measurement portion 2 away from
It is obtained from a regular length calibration factor is multiplied by, or equidirectional with the first electrode array 11 and second electrode array 21
The distance between end is obtained multiplied by the lengthy calibration coefficient；The regular length calibration factor is preset calibration system
Number parameter.
Specifically, human body first position is any one in Medial upper arm, inner forearm, thigh, shank and forearm,
And the human body second position is any one in Medial upper arm, inner forearm, thigh, shank and forearm.The human body
First position and human body second position can have Multiple Combination mode, to be detected the different positions of human body to improve
Accuracy of measurement.
Then by analyzing time difference between above-mentioned first human body impedance pulse wave and the second human body impedance pulse wave and upper
Pulse wave velocity can be calculated by stating arterial vascular equivalent length between human body first position and human body second position.For example, right
In pulse wave translation time, presently known way includes calculating in the same cardiac cycle the first human body impedance pulse wave to the
The time difference of the wave crest of two human body impedance pulse waves or corresponding decrease amount is poor or above-mentioned first human body impedance pulse wave and
The time difference between corresponding trough after second human body impedance pulse wave differential is as pulse wave translation time.
The arteries equivalent length of the human body first position to human body second position is first impedance measurement portion 1
11 central point of first electrode array and the distance between 21 central point of second electrode array in the second impedance measurement portion 2 be multiplied by one
A regular length calibration factor obtains.First impedance measurement portion 1 and the second impedance measurement portion 2 are set on fixed part 4, i.e. institute
It is fixed to state the distance between two central points.Or with the first electrode array 11 and the equidirectional endpoint of second electrode array 21
The distance between position is multiplied by lengthy calibration coefficient as the arteries equivalent length (and above-mentioned two arrays of electrodes array center
Point distance is equivalent), by the way that the pulse wave translation time and default length of vessel can be calculated according to preset algorithm
To pulse wave velocity, specifically, the default length of vessel is the arteries equivalent length, by passing the pulse wave
Leading the time divided by arteries equivalent length can be obtained pulse wave velocity；Certainly, first impedance measurement portion 1 and the second resistance
Anti- measurement portion 2 can be designed to the movable connection of the fixed part 4, and first impedance measurement portion 1 and the second impedance are surveyed
It is position between amount portion 2, specific adjustable, so that different age group or the user of different heights be facilitated to use, improve measurement essence
Degree.Above-mentioned lengthy calibration coefficient can determine an optimal value, the present embodiment lengthy calibration coefficient etc. by limited trials
In 1.
Traditional impedance pulse wave is considered to measure between the pulse wave of some limb segment, such as both hands, both feet, but this is practical
It is novel cleverly to convert measurement a little for the measurement of section, two limb segment pulse waves are converted to the pulse wave of 2 limbs points, from
And overcome traditional prejudice, realize the precise measurement of pulse wave velocity.
The utility model pulse wave velocity device can also be by being equipped with display screen 7, and 7 screens of the display are set to described
It is electrically connected on fixed part 4 and with first primary processor 3；First primary processor 3 detects pulse wave velocity, pulse
Wave velocity itself is the individual index of Health Status of Cardiovascular System, such as can reflect Degree of arteriosclerosis, therefore can be used as one
The independent monitor control index of item is checked to be exported by display screen 7 to user, user-friendly.
The utility model pulse wave velocity device can also be by being equipped with wireless transmit/receive units 6, the wireless receiving and dispatching
Unit 6 is set on the fixed part 4 and connect with first primary processor 3, for by the wireless of first primary processor 3
Data are sent to external equipment.Specifically, by taking the external equipment is mobile phone as an example, the utility model pulse wave velocity dress
It sets to establish by the wireless transmit/receive units 6 with mobile phone and communicate to connect, first primary processor 3 detects pulse velocity of wave
Degree is sent to mobile phone as wireless data, and user can check at any time the vascular health situation of oneself by mobile phone.Certainly, this is outer
Portion's equipment can also be the smart machine of user relatives, facilitate the relatives of user or can understand detection data other people at any time
The vascular health situation of user is monitored, user experience is improved.
In one alternate embodiment, referring to Fig.1 1, the fixed part 4 is elastic fabric, is intended to be worn in human body limb
On, the first electrode array 11 and second electrode array 21 include that several be set on the elastic fabric is surveyed for human body impedance
The flexible electrode of amount, the flexible electrode are made using textile electrode or conductive rubber.
In one embodiment, the elastic fabric is oversleeve, and the oversleeve is for being wrapped in human body upper arm and/or preceding
Arm, the oversleeve are provided with first impedance measurement portion 1 and the second impedance measurement portion 2, and the first electrode array 11 is sticked
In human body first position, the second electrode array 21 is attached at human body second position.
In another embodiment, the elastic fabric is footmuff, and the footmuff is used to wrap up the foot of human body and/or small
Leg, the footmuff are provided with first impedance measurement portion 1 and the second impedance measurement portion 2, and the first electrode array 11 is sticked
In human body first position, the second electrode array 21 is attached at human body second position.
As depicted in figs. 1 and 2, it is oversleeve type on a human body left side that Fig. 1 and Fig. 2, which is the utility model pulse wave velocity device,
The schematic diagram dressed on arm, the fixed part 4 are made of elastic textile material, can be worn on human body, and by fixed part 4
The fixation of first electrode array 11 in first impedance measurement portion 1 of upper installation fits in human body first position, the human body first
Position is Medial upper arm A110, and the fixation of second electrode array 21 in second impedance measurement portion 2 fits in human body second
Position, the human body second position are inner forearm A120, wherein the Medial upper arm A110 is located proximate to upper arm arteria brachialis, institute
Inner forearm A120 is stated close to human body radial artery, certainly, the human body first position can also be inner forearm A120, described
First electrode array 11 in one impedance measurement portion 1, which is fixed, fits in human body first position, and the human body second position is upper arm
Inside A110, the fixation of second electrode array 21 in second impedance measurement portion 2 fit in human body second position.
In one alternate embodiment, the utility model pulse wave velocity device further includes impedance processor 5, described
Impedance processor 5 be connected to first impedance measurement portion 1 and/or the second impedance measurement portion 2 to first primary processor 3 it
Between, after being filtered by the first human body impedance pulse wave and/or the second human body impedance pulse wave, reducing noise processed
It exports to first primary processor 3.
Fig. 3 is the building-block of logic that the utility model pulse wave is commonly called as measuring device, including the first impedance measurement portion 1 and
Two impedance measurement portions 2, for obtaining the first human body impedance pulse wave at human body first position Medial upper arm A110 respectively, and
The second human body impedance pulse wave at human body second position inner forearm A120；The first human body impedance pulse wave and the second people
Body impedance pulse wave is sent into the impedance processor 5, is filtered, denoising, improves the first human body impedance pulse wave
With the signal-to-noise ratio of the second human body impedance pulse wave；The first human body impedance pulse wave and the second human body impedance pulse wave exist at this time
It physically can be impedance-time series, be also possible to voltage-vs-time sequence, do not influence candidate pulse wave velocity and calculate.
Treated the first human body impedance pulse wave and the second human body impedance pulse wave are sent to the first main control
Device 3, after synchronizing processing, so that it may obtain between the first human body impedance pulse wave and the second human body impedance pulse wave
Time difference T0, time difference T0 are divided by arteries length between Medial upper arm A110 to inner forearm A120, then available
Pulse wave velocity PWV0.Above-mentioned arteries length is usually with the limbs length of Medial upper arm A110 to inner forearm A120 come generation
It replaces.Pulse wave velocity PWV0 itself is the individual index of Health Status of Cardiovascular System, such as can reflect Degree of arteriosclerosis, therefore
An independent monitor control index be can be used as to export to user.
In one alternate embodiment, the first electrode array 11 includes at least 2 first excitation electrodes and 2 first
Measuring electrode, the first excitation electrode enter human body first position for emitting exciting current, and first measuring electrode is used
Voltage between 2 first excitation electrodes of measurement；The second electrode array includes at least 2 second excitation electrodes and 2
Second measuring electrode, the second excitation electrode is for emitting exciting current to the human body second position, second measurement
Electrode is used to measure the voltage between 2 second excitation electrodes.
Fig. 5 is the circuit diagram of the utility model pulse wave velocity device, including several big moulds being electrically connected
Block, microcontroller 130, the microcontroller 130 includes the first primary processor 3 and impedance processor 5, for executing control instruction
Control the work of other modules；First impedance measurement portion 1 and the second impedance measurement portion 2, for measuring human body first respectively
The impedance of position and human body second position, to obtain the first human body impedance pulse wave and the second human body impedance pulse respectively
Wave；When implementing, the utility model pulse wave velocity device further includes wireless transmit/receive units 6, and NB-IOT and indigo plant can be used
Tooth BLE protocol, for measurement data to be reported to the terminal devices such as remote server or mobile phone；The display screen 7 uses
Electronic Paper EPD display may be implemented ultrathin flexible super low-power consumption and show, be suitble to wearable device application；Key 8, using electricity
Hold touch or pressure touch key, inputs operation for user；Acceleration transducer 9, the acceleration transducer 9 with it is described
First primary processor 3 is electrically connected, for identification the position posture of the human body first position and/or human body second position, tool
Body, the acceleration transducer 9 can be used to identify the posture when forearm, so that mutually reply measurement data is adjusted benefit
It repays；In addition, there are also power supply units 10, ultra-thin button cell, ultra-thin lithium cell etc. can be used.
From the perspective of pulse wave velocity, the circuit operation principle of the utility model pulse wave velocity device is:
Microcontroller 130 controls the first impedance measurement portion 1 and the second impedance measurement portion 2 and measures the first impedance pulse wave W110 and the respectively
Two impedance pulse wave W120, wherein the first impedance pulse wave W110 is the first human body impedance pulse wave, second impedance
Pulse wave W120 is the second human body impedance pulse wave, then by the first impedance pulse wave W110 and the second impedance pulse wave
W120 reads in microcontroller 130, successively passes through impedance processor 5 and the first primary processor 3, obtains pulse wave velocity PWV0；So
PWV0 is shown by display screen 7 afterwards, and is sent to remote server and mobile phone terminal by wireless transmit/receive units 6.Mobile phone is whole
End is configured with APP, can be used to check measurement data and historical data etc..Not in view of pulse wave velocity and human blood-pressure
Meeting short time acute variation, the utility model pulse wave velocity device use service intermittent, such as measurement one in 5 minutes
It is secondary, update primary as a result, not only can satisfy the requirement continuously monitored in this way within every 15 minutes after then 3 measurement results are average, but also
Device power consumption is greatly reduced, cruising ability is extended.
Specifically, first impedance measurement portion 1 includes first electrode array 11 and the first measuring nose 12, first electrode
Array 11 is by first excitation electrode 114A, 114B, 115A, 115B and first measuring electrode 113A, 113B, 116A, 116B group
At.Second impedance measurement portion 2 includes second electrode array 21 and the second measuring nose 22, and second electrode array 21 is by the second excitation
Electrode 114A, 114B, 115A, 115B and second measuring electrode 113A, 113B, 116A, 116B composition.
On the other hand, as shown in Figure 1 to 11, the utility model also provides a kind of blood pressure continuous measurement device, including
Two primary processors 133 and such as above-mentioned pulse wave velocity device, second primary processor 133 and the described first main place
It manages device 3 to connect, the pulse wave velocity sent for receiving first primary processor 3, and is derived according to the pulse wave velocity
Obtain pressure value.
When implementing, the blood pressure continuous measurement device is added on the basis of above-mentioned pulse wave velocity device
Second primary processor 133, the microcontroller 130 further includes second primary processor 133, when first primary processor 3
After obtaining pulse wave velocity, it is sent to second primary processor 133, second primary processor 133 is according to the pulse wave
Speed can derive pressure value.The pressure value includes at least one of mean arterial pressure, systolic pressure, diastolic pressure.
When implementing, the pressure value can also be adjusted so as to using preset human parameters combination pulse wave velocity as parameter
It arrives, the human parameters includes at least one in gender, age, height, weight, BMI, body fat rate, four limbs degree of enclosing and waist-to-hipratio
Kind.Specifically, the human parameters can be the supplemental characteristic defaulted in device, when user carries out blood pressure measurement, this reality
Use novel blood pressure continuous measurement device that can be carried out deriving adjustment blood as parameter according to the pressure value and the human parameters measured
Pressure value improves accuracy of measurement so that personal considerations of the pressure value closer to user, certainly, the key 8 can be used for for
Family inputs the human parameters, and the display screen 7 can be designed to be electrically connected with the second primary processor, arrive for what will be measured
Pulse wave velocity and/or pressure value be shown to user and check, in addition, the display unit 7 is also designed to touch screen, use
Family can carry out human parameters described in operation input by the touch screen, and the utility model blood pressure continuous measurement device passes through root
The derivation and adjustment of pressure value are carried out according to the human parameters combination pulse wave velocity, to improve blood pressure measurement precision, are improved
User experience.
The circuit operation principle of the utility model blood pressure continuous measurement device is that microcontroller 130 controls the first impedance and surveys
Amount portion 1 and the second impedance measurement portion 2 measure the first impedance pulse wave W110 and the second impedance pulse wave W120 (referring to figure respectively
10), and by reading microcontroller 130 then in turn through impedance processor 5, the first primary processor 3 and the second primary processor
133, obtain pulse wave velocity PWV0 and pressure value BP0, specifically, the pressure value BP0 include mean arterial pressure, systolic pressure and
At least one of diastolic pressure；Then pulse wave velocity PWV0 and pressure value BP0 is shown by display screen 7, the wireless receipts
Bill member 6 is also designed to be electrically connected with second primary processor 133, by wireless transmit/receive units 6 by pulse velocity of wave
Degree PWV0 and pressure value BP0 is sent to remote server and mobile phone terminal.Mobile phone terminal is configured with APP, can be used to check survey
Measure data, historical data and progress blood pressure trend analysis etc..
In one alternate embodiment, impedance graphical method is to belong to well known technology to human body impedance measuring in other words, is mostly used
In positions such as the injection heart, brain, blood vessel, chest, lung and four limbs (between both hands, between both feet etc.), injection cardiac impedance is produced
The application such as figure, rheoencephalogram, thorax impedance figure, impedance pneumogram and bioelectrical impedance analysis, a variety of variations of tissue are ok
The variation of corresponding site impedance is brought, and wherein the change of blood flow rhythmicity flowing bring is most regular.
It is the signal that first electrode array 11 in the first impedance measurement portion 1 is the configuration of 4 electrod-arrays referring to Fig. 6, Fig. 6
Figure.The electrode system of the measurement of human body impedance uses 4 electrode configurations, including 2 excitation electrodes for emitting human body typically today
Electric current enters human body privileged site, also includes that 2 measuring electrodes being configured adjacently are used to measure the electric current in the privileged site
The voltage of generation；Compared to 2 previous electrode configurations, i.e., excitation electrode and measuring electrode close 2 and both emission current or had measured electricity for 1
The advantages of pressure has and preferably eliminates Skin Resistance, and contact impedance influences, has better measurement accuracy and repeatability.
In Fig. 6, at Medial upper arm A110, moved towards close to the arteria brachialis A111 of human body, and along arteria brachialis A111, according to
It is secondary to be configured with the excitation electrode of the first excitation electrode 115A, the first measuring electrode 116A, the first measuring electrode 113A and first
114A.The excitation of first measuring electrode 116A and first electrode 115A partners, and is configured adjacently, spacing is usually no more than 1cm；The
The excitation of one measuring electrode 113A and first electrode 114A partners, and is configured adjacently, spacing is no more than 1cm.Constant current source forcing 111
In succession the excitation electrode 114A of the first excitation electrode 115A and first, and in the first excitation electrode 115A and the first excitation electrode
Tissue between 114A emits the constant sine-wave current of virtual value.First measuring electrode 114A and the first measuring electrode
113A then picks up the voltage drop on above-mentioned sine-wave current path, and accesses in first voltage measuring unit 112, converts the voltage into
For digital voltage or impedance signal.First voltage measuring unit 112 is actually an analog-digital converter, by analog voltage
Signal is converted to digital signal；But due to being sine voltage, it can also consider that rectification circuit is added in design in circuit,
Such as full-wave rectifying circuit, sine wave is converted into direct current, obtains the corresponding virtual value of sine wave.First constant current source forcing 111
The first measuring nose 12 is constituted with first voltage measuring unit 112, can be an IC chip, such as TI company
AFE4300 chip.
In another embodiment, the first electrode array 11 includes 8 first excitation electrodes and 8 first measurement electricity
Pole, the first excitation electrode are used to emit in pairs exciting current and enter human body first position, first measuring electrode
In pairs for measuring same group of 2 first voltages motivated between electrodes；The second electrode array 21 includes at least 8
A second excitation electrode and 8 the second measuring electrodes, the second excitation electrode are used to emit in pairs exciting current to institute
Human body second position is stated, second measuring electrode is used to measure in pairs between same group of 2 second excitation electrodes
Voltage.
As shown in fig. 7, Fig. 7 is the schematic diagram that the first impedance measurement portion 1 configures 8 electrodes.Match compared to the first impedance measurement portion
Set 4 electrodes, 8 electrodes have been equivalent to a set of 4 electrode more, i.e., more first excitation electrode 115B, the first excitation electrode 114B, first
Measuring electrode 116B and the first measuring electrode 113B；Correspondingly, need to increase multichannel choosing before first constant current drive source 111
Select device 117A, 117B, more multiple selector 118A, 118B before the first voltage converting unit 112.In fact, above-mentioned
AFE4300 chip supports 8 electrode configurations.8 electrode configuration shown in Fig. 7 is useful in that, can therefrom select 2 first to swash
It encourages electrode and 2 the first measuring electrodes is combined, form 4 electrode measurement system of standard shown in fig. 5, so as to adjust measurement pair
The human body answered.Such as in Fig. 7, by the first excitation electrode 115A of selection and the first excitation electrode 114B, it can will motivate
Electric current is directed to the arteria brachialis A111 flowing mainly along human body, because electric current can preferentially flow through the smallest path of impedance, and by
It is small in the impedance of blood, therefore electric current can motivate the human body major arteries of electrode limited area to flow through preferentially along two, thus
Further improve the signal-to-noise ratio and specificity for acquiring the first impedance pulse wave.Therefore, matching using 8 electrodes or more
It sets, a variety of 4 electrode configurations can be combined by microcontroller 130, therefrom select highest group of impedance pulse wave signal-to-noise ratio
It closes to use, electrode position positioning is wanted when to further reduced the measurement of the utility model blood pressure continuous measurement device
It asks, improves the quality of impedance pulse wave signal, reduce the influence of surrounding tissue, improve the specificity of signal.
Second impedance measurement as shown in Fig. 8 portion 2 configures the structural representation of 8 electrodes, including 21 He of second electrode array
Second measuring nose 22.Human body second position defined by the second electrode array 21 in second impedance measurement portion 2 is forearm
Inside A120, corresponding blood vessel are human body radial artery A121.Its basic principle measured and above-mentioned first impedance measurement portion 1 one
It causes, only corresponding human body is different.In Fig. 8, at inner forearm A120, close to the radial artery A121 of human body, and edge
Radial artery A121 trend, configured in order second excitation electrode 125A, second excitation electrode 125B, the second measuring electrode
126A, the second measuring electrode 126B, the second measuring electrode 123A, the second measuring electrode 123B, the second excitation electrode 124A and the
Two excitation electrode 124B.The excitation of second measuring electrode 126A and second electrode 125A partners, and is configured adjacently, spacing is generally not
More than 1cm；The excitation of second measuring electrode 123A and second electrode 124A partners, and is configured adjacently, spacing is no more than 1cm；The
The excitation of two measuring electrode 126B and second electrode 125B partners, and is configured adjacently, spacing is usually no more than 1cm；Second measurement
The excitation of electrode 123B and second electrode 124B partners, and is configured adjacently, spacing is no more than 1cm；Correspondingly, second constant current
Need to increase multiple selector 127A, 127B before driving source 121, more multichannel choosings before the second voltage converting unit 122
Select device 128A, 128B.Second constant current source forcing 121 is ined succession the excitation electrode 124A of the second excitation electrode 125A and second, and at this
Tissue between two excitation electrodes emits the constant sine-wave current of virtual value, from the second excitation electrode 125A to second
Motivate electrode 124B.Second measuring electrode 126A and the second measuring electrode 123B then picks up the electricity on above-mentioned sine-wave current path
Pressure drop, and access in second voltage measuring unit 122, second voltage measuring unit 122 and the second constant current source forcing 121 form institute
The second measuring nose 22 is stated, digital voltage or impedance signal are converted voltages into.It is similar with the first measuring nose 12, the second measurement
Front end 22 can use AFE4300 chip.
Shown in Figure 9, Fig. 9 is that the section of the second impedance measurement portion 2 measurement human body second position inner forearm A120 shows
It is intended to.Second excitation electrode 125A, the second excitation electrode 126A, the second excitation electrode 123B and the second excitation electrode 124B contact
The inside A122 skin of forearm, radial artery A121 belong to superficial artery, relatively close inner forearm A122, and far from the outside of forearm
A123.Exciting current enters from inner forearm A122, can successively pass through epidermis, corium, and subcutaneous fat etc. is reaching radial artery
It can be mainly along disturbance this low impedance path of arteries and veins flowing after A121.
Shown in Figure 10 is impedance pulse waveform, wherein the first impedance pulse wave W110 is in human body first position
A110, that is, Medial upper arm is measured along arteria brachialis on the inside of arm；And the second impedance pulse wave W120 is in human body second position inner forearm
A120, that is, inner forearm is measured along radial artery.The corresponding P10 section of first impedance pulse wave W110 is that current cardiac penetrates the blood period
Blood pressure enter in human body first position, in particular to Fig. 7 what the first excitation electrode 115A and the first excitation electrode 114B was limited
Region, it is arteria brachialis A111 sections mainly corresponding；Wherein P11 is index point, and impedance, which is begun to decline, indicates low-impedance blood constituent
Start to increase, the blood for flowing into arteria brachialis A111 is greater than the blood flow in the outflow region arteria brachialis A111；And P12 is then on the contrary, impedance is opened
Starting weight newly increases, and indicates that low-impedance blood constituent starts to reduce, and the blood of outflow arteria brachialis A111, which is greater than, flows into arteria brachialis
The blood flow (also including the influence of vein blood back at this time) in the region A111.Second impedance pulse wave W120 principle having the same, only
It is corresponding human body is inner forearm A120, mainly radial artery A121 sections.Choose the vertex of the first impedance pulse wave W110
The vertex P14 of P13 and the second impedance pulse wave W120 of the same cardiac cycle are as two index points, their time difference is just
Represent blood from enter A111 section of the arteria brachialis of Medial upper arm A110 to entrance inner forearm A120 radial artery A121 when
Between difference T0；And this time difference corresponding length of vessel W00 specifically can motivate electrode with the first excitation electrode 115A to second
The length W0 of 125A is indicated, it is preferable that this distance W0 can also be multiplied a correction factor k more accurately to indicate this
Arteria brachialis+radial artery length, i.e. W00=W0*k corresponding to a segment length, this k have statistical significance.Therefore pulse
Wave velocity PWV0=W0*k/T0.According to well-known technique, about the selection of above-mentioned index point P13, P14, there is also other modes.
Although above-mentioned first impedance measurement portion 1 limits measurement human body first position Medial upper arm A110 impedance, and especially strong
Having adjusted is mainly A111 sections of Medial upper arm A110 arteria brachialis, but in fact, impedance includes the first excitation electrode 115A and
Whole section of upper arm tissue of one excitation electrode 114B limited area, wherein also including the resistance that each secondary vessels and capillary are contributed
Anti-, only the percentage of impedance contribution is different.If the electric current for flowing through arteria brachialis is more, for the first impedance pulse wave W110
The amplitude of middle impedance variation is contributed just greatly, on the contrary then small.But this has no effect on the accuracy that above-mentioned pulse wave velocity calculates, because
Then blood flow always finally reaches capillary to secondary artery from main artery.
It is as shown in figure 11 the schematic diagram in kind of the utility model blood pressure continuous measurement device, wherein fixed part 4 is elasticity
The oversleeve 190 of fabric, certainly, the elastic fabric can also be shoulder set, and in Figure 11 1901 on the outside of the corresponding oversleeve in left side, right side is right
It answers 1902 on the inside of oversleeve；191 correspondence of upper arm set is worn on human body upper arm, this area inside installs first electrode array 11, described
First electrode array 11 is made of textile electrode；192 correspondence of forearm set is worn on human body forearm, this area inside is equipped with the
Two electrod-arrays 21, the second electrode array 21 are made of textile electrode.Main circuit 180 and electronic-paper display screen 7 are installed
Near lower cuff front, hand is lifted i.e. it can be seen that current pressure value and heart rate value convenient for user.
Certainly, measuring at other positions of four limbs is also to meet the spirit of the utility model and can reach described in the utility model
Effect.Including:
1. human body first position is Medial upper arm, human body second position is also Medial upper arm；At this time because of two position phases
Shorter away from distance, with regard to small, therefore for impedance pulse wave, signal-to-noise ratio can reduce impedance variations caused by blood flow；And two
The time difference of position pulse wave can also reduce, so the sample rate for measurement has requirements at the higher level.But advantage is this position
Corresponding one whole section of arteria brachialis.
2. human body first position is inner forearm, human body second position is also inner forearm；At this time because of human body first
Position human body second position between distance it is shorter, impedance variations caused by blood flow with regard to small, therefore for impedance pulse wave and
Speech, signal-to-noise ratio can reduce；And the time difference of two position pulse waves can also reduce, so the sample rate for measurement has more
High request.But advantage is the corresponding one whole section of arteria brachialis in this position.
3. human body first position is thigh, human body second position is shank.
4. human body first position is thigh, human body second position is also thigh.
5. human body first position is shank, human body second position is also shank.
6. human body first position is forearm, human body second position is shank.
Above scheme is compared to the beneficial effect of existing scheme:
Firstly, above scheme significantly improves the accuracy of pulse wave velocity and blood pressure continuous measurement, improve in other words just
The accuracy measured under the property taken, wearable property (i.e. non-clinical).In portable, wearable existing measurement scheme, ECG+
Pulse wave scheme is limited by the PEP error that ECG judges the cardiac ejection time, haves the shortcomings that portability is poor, and pulse
Wave measurement is more then that the pulse wave of the pulse wave (PPG scheme) of capillary network and the arteries of theory calls has difference
It is different.And double PPG schemes can only measure the pulse wave of capillary then if unlimited measurement position, and it is dynamic to measure trunk
Arteries and veins pulse wave then requires height to PPG sensor position, as PPG sensor can only be placed in superficial artery by Maguire scheme
Place --- ancon arteria brachialis and person's pulse on the wrist radial artery, thus in the case where meeting the wearable property of portability, accuracy, anti-interference
It is greatly reduced.
Secondly, realizing really continuous measurement.In existing scheme, ECG (or the similar side for calculating the cardiac ejection time
Case)+pulse wave scheme for, need both hands to press electrode, therefore be not really continuous measurement；Dual pressure sensor scheme,
Air bag inflating pressure is needed to guarantee that pressure sensor can correctly sense pulse pressure variation, and air bag pressurization is for blood flow
Have an impact with tissue, cannot pressurize for a long time, so the measurement method cannot be measured continuously for a long time.
Finally, significantly improving portability and wearable property.Then portability is big according to chest leads for ECG+ pulse wave scheme
It gives a discount, according to two hand measurements, does not then have continuous measurement characteristic.Dual pressure sensor scheme uses air bag pressuring method just
The property taken substantially reduces；Double PPG schemes are unfavorable for portable use for the stringent of positioning requirements, and PPG sensor is not easy to wear
It wears, PPG sensor integration is worn over wrist only on wrist-watch bracelet at present；It is very inconvenient if increasing by one in ancon.We
Case then can cooperate textile electrode (or metal foil) by elastic fabric, realize similar the same real wearable body of wearing the clothes
It tests, significantly improves portability and wearable property.
In short, compared with prior art, above-mentioned technical proposal improve significantly measurement accuracy, can continuously measurement property and
The wearable property of portability.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, is directly or indirectly transported
Used in other related technical areas, it is also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of pulse wave velocity device characterized by comprising
First impedance measurement portion, including first electrode array and the first measuring nose, first measuring nose and described first
Electrod-array connection, for obtaining the first human body impedance pulse of human body first position defined by the first electrode array
Wave；
Second impedance measurement portion, including second electrode array and the second measuring nose, second measuring nose and described second
Electrod-array connection, for obtaining the second human body impedance pulse of human body second position defined by the second electrode array
Wave；
First primary processor, first primary processor are connect with first impedance measurement portion and the second impedance measurement portion, are used
In reception and pulse wave velocity is obtained according to the first human body impedance pulse wave and the second human body impedance pulse wave；
Fixed part, first impedance measurement portion, the second impedance measurement portion and the first primary processor are set on the fixed part；
Display screen, the display screen are set on the fixed part and are electrically connected with first primary processor.
2. pulse wave velocity device according to claim 1, it is characterised in that: it further include wireless transmit/receive units, institute
It states wireless transmit/receive units to connect on the fixed part and with first primary processor, be communicated for being established with external equipment
Connection.
3. pulse wave velocity device according to claim 1, it is characterised in that: the fixed part is elastic fabric,
It is intended to be worn on human body limb, the first electrode array and second electrode array include several be set on the elastic fabric
For the flexible electrode of human body impedance measuring, the flexible electrode is made using textile electrode or conductive rubber.
4. pulse wave velocity device according to claim 1, it is characterised in that: the first electrode array at least wraps
Include 2 first excitation electrodes and 2 the first measuring electrodes, the first excitation electrode enters human body for emitting exciting current
One position, first measuring electrode are used to measure the voltage between 2 first excitation electrodes；The second electrode array is at least
Including 2 second excitation electrodes and 2 the second measuring electrodes, the second excitation electrode is for emitting exciting current to the people
Body second position, second measuring electrode are used to measure the voltage between 2 second excitation electrodes.
5. pulse wave velocity device according to claim 4, it is characterised in that: the first electrode array includes 8
A first excitation electrode and 8 the first measuring electrodes, the first excitation electrode are used to emit in pairs exciting current entrance
Human body first position, first measuring electrode are used to measure in pairs the electricity between same group of 2 first excitation electrodes
Pressure；The second electrode array includes at least 8 second excitation electrodes and 8 the second measuring electrodes, the second excitation electrode
In pairs for emitting exciting current to the human body second position, second measuring electrode is used to measure in pairs together
Voltage between one group of 2 second excitation electrodes.
6. pulse wave velocity device according to claim 1, it is characterised in that: it further include impedance processor, it is described
Impedance processor is connected to first impedance measurement portion and/or the second impedance measurement portion between first primary processor,
It is defeated after noise processed for being filtered, reducing by the first human body impedance pulse wave and/or the second human body impedance pulse wave
Out to first primary processor.
7. pulse wave velocity device according to claim 3, it is characterised in that: the elastic fabric is oversleeve, institute
Oversleeve is stated for being wrapped in human body upper arm and/or forearm, the oversleeve is provided with first impedance measurement portion and the second impedance
Measurement portion, the first electrode array are attached at human body first position, and the second electrode array is attached at human body second position.
8. pulse wave velocity device according to claim 3, it is characterised in that: the elastic fabric is footmuff, institute
It states footmuff and is provided with first impedance measurement portion and the second impedance for wrapping up the foot and/or shank of human body, the footmuff
Measurement portion, the first electrode array are attached at human body first position, and the second electrode array is attached at human body second position.
9. pulse wave velocity device according to claim 1, it is characterised in that: it further include acceleration transducer, institute
It states acceleration transducer and first primary processor to be electrically connected, for identification the human body first position and/or human body the
The position posture at two positions.
10. a kind of blood pressure continuous measurement device, it is characterised in that: including the second primary processor and as appointed in claim 1 to 9
Pulse wave velocity device described in one, second primary processor is connect with first primary processor, for receiving
The pulse wave velocity that first primary processor is sent is to obtain pressure value.
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| CN201820797518.6U CN208876506U (en) | 2018-05-25 | 2018-05-25 | Pulse wave velocity device and blood pressure continuous measurement device |
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|---|---|---|---|
| CN201820797518.6U CN208876506U (en) | 2018-05-25 | 2018-05-25 | Pulse wave velocity device and blood pressure continuous measurement device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI762263B (en) * | 2021-03-30 | 2022-04-21 | 國立臺北科技大學 | Wearable apparatus |
| CN115770025A (en) * | 2022-11-14 | 2023-03-10 | 深圳市捷美瑞科技有限公司 | Combined wave velocity measuring method, device, equipment and medium |
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2018
- 2018-05-25 CN CN201820797518.6U patent/CN208876506U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI762263B (en) * | 2021-03-30 | 2022-04-21 | 國立臺北科技大學 | Wearable apparatus |
| CN115770025A (en) * | 2022-11-14 | 2023-03-10 | 深圳市捷美瑞科技有限公司 | Combined wave velocity measuring method, device, equipment and medium |
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