CN107049290A - A kind of ambulatory blood pressure measuring method and system - Google Patents
A kind of ambulatory blood pressure measuring method and system Download PDFInfo
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- CN107049290A CN107049290A CN201710250378.0A CN201710250378A CN107049290A CN 107049290 A CN107049290 A CN 107049290A CN 201710250378 A CN201710250378 A CN 201710250378A CN 107049290 A CN107049290 A CN 107049290A
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- air bag
- value
- pressure
- pressurization
- pressure value
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02108—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
Abstract
The embodiments of the invention provide a kind of ambulatory blood pressure measuring method and system, it is related to electronic technology field.The embodiment of the present invention adjusts the rotating speed of pump by dynamic, to control the pressure value of air bag at the uniform velocity to rise, in pressure process, pressure value is obtained based on pressure sensor, pressure value is filtered and obtains pulse wave, and recognize the peak point of pulse wave, judge whether the current pressure value of air bag is more than or equal to anticipation pressurization value by the way of ladder judges, when more than or equal to anticipation pressurization value, stop pressurization, peak point based on pulse wave, determines systolic pressure and diastolic pressure.Blood pressure is measured in pressure process, time and time of measuring that upper arm is under pressure is reduced, reduces the error for the measurement result that the blood vessel of user can not be recovered to cause in time due to long-time by compressing, the comfort level that user uses is improved；Using at the uniform velocity steady pressurization during blood pressure is measured, and suitable pressurization value is pressurized to according to the blood pressure personalization of user, improves the accuracy of measurement.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of ambulatory blood pressure measuring method and system.
Background technology
With continuing to develop and progressive for modern medicine, people to the attention degree of health also more and more higher, hypertension and
Low blood pressure can all cause certain harm to human body, nowadays measure the method for blood pressure and mainly have Korotkoff's Sound method, vascular unloading technique, show
Ripple method etc., due to oscillographic method measure blood pressure method is simple, results contrast accurate, be easy to carry about with one, anti-interference and repeatability are strong,
Therefore it is widely used in electronic sphygmomanometer.
At present, it can realize that ambulatory blood pressure is measured by electronic sphygmomanometer, Quick-pressing arrives slow after certain pressure value first
Gas in slow discharge air bag, pulse wave is obtained in pressure reduction, blood pressure is calculated by pulse wave.
When inventor applies first technology, find first technology for the method using decompression measurement blood pressure, upperarm length
Time, by larger pressure, can cause user's especially the elderly's blood vessel can not to be recovered in time by compressing, cause measurement to be tied
Fruit has error；The time of user's measurement is long, the discomfort that user can be caused to use.
The content of the invention
In view of the above problems, it is proposed that the present invention so as to provide one kind overcome above mentioned problem or at least in part solve on
State a kind of ambulatory blood pressure measuring method and a kind of corresponding Dynamic blood pressure measure system of problem.
According to one aspect of the present invention there is provided a kind of ambulatory blood pressure measuring method, including：
By the rotating speed of dynamic adjustment pump, to control the pressure value of air bag at the uniform velocity to rise；
In pressure process, pressure value is obtained based on pressure sensor；
The pressure value is filtered and obtains pulse wave, and recognizes the peak point of the pulse wave；
When the current pressure value of the air bag is equal to first threshold, start whether to judge the current pressure value of the air bag
More than or equal to anticipation pressurization value；
When the current pressure value of the air bag is less than anticipation pressurization value, on the basis of first threshold, the air bag rises
Pressure value when being equal to N times of Second Threshold, carry out the N+1 time and judge, determine whether the current pressure value of the air bag is more than
Or equal to anticipation pressurization value；The N is the integer more than or equal to 1；
When the current pressure value of the air bag is more than or equal to anticipation pressurization value, stop pressurization；
Based on the peak point of the pulse wave, systolic pressure and diastolic pressure are determined.
Preferably, the rotating speed that pump is adjusted by dynamic, the step of at the uniform velocity being risen with the pressure value for controlling air bag, bag
Include：
The variable quantity of dutycycle based on control chip pin, the rotating speed of dynamic adjustment pump；
Based on the rotating speed of the pump, the pressure value of control air bag at the uniform velocity rises.
Preferably, the variable quantity of the dutycycle pressure value current with the air bag and current pressing speed phase
Close.
Preferably, when the pressure value current when the air bag is more than or equal to anticipation pressurization value, the step of pressurization is stopped
Suddenly, including：
When the current pressure value of the air bag is more than or equal to 280mmHg, stop pressurization.
Preferably, when the pressure value current when the air bag is more than or equal to anticipation pressurization value, the step of pressurization is stopped
Suddenly, in addition to：
When the current pressure value of the air bag is more than or equal to the corresponding pressure value of peak-peak point of the pulse wave
1.2 times with 20mmHg be added corresponding pressurization value when, stop pressurization.
Preferably, when the pressure value current when the air bag is more than or equal to anticipation pressurization value, the step of pressurization is stopped
Suddenly, in addition to：
Continuous two pulse waves collected after in peak-peak point corresponding pulse wave, its corresponding peak point and institute
When the ratio for stating peak-peak point is respectively smaller than 0.5 and 0.4, stop pressurization.
According to another aspect of the present invention there is provided a kind of Dynamic blood pressure measure system, including：Control chip, pressure are passed
Sensor, air bag, pump；
The control chip includes：
Adjustment of rotational speed unit, the rotating speed for adjusting pump by dynamic, to control the pressure value of air bag at the uniform velocity to rise；
Signal acquiring unit, in pressure process, pressure value to be obtained based on pressure sensor；
Signal processing unit, is filtered to the pressure value and obtains pulse wave, and recognizes the peak point of the pulse wave；
First judging unit, for when the current pressure value of the air bag is equal to first threshold, starting to judge the gas
Whether the current pressure value of capsule is more than or equal to anticipation pressurization value；
Second judging unit, for being less than anticipation pressurization value when the current pressure value of the air bag, in the base of first threshold
On plinth, when the pressure value that the air bag rises is equal to N times of Second Threshold, the N+1 times judgement is carried out, determines that the air bag is current
Pressure value whether be more than or equal to anticipation pressurization value；The N is the integer more than or equal to 1；
Pressurized control unit, for when the current pressure value of the air bag is more than or equal to anticipation pressurization value, stopping adding
Pressure；
Computing unit, for the peak point based on the pulse wave, determines systolic pressure and diastolic pressure.
Preferably, the adjustment of rotational speed unit, including：
Dynamic adjustment unit, for the variable quantity of the dutycycle based on control chip pin, the rotating speed of dynamic adjustment pump；
Pressure value control unit, for the rotating speed based on the pump, the pressure value of control air bag at the uniform velocity rises.
Preferably, the variable quantity of the dutycycle pressure value current with the air bag and current pressing speed phase
Close.
Preferably, the pressurized control unit, including：
First pressurized control subelement, for when the current pressure value of the air bag is more than or equal to 280mmHg, stopping
Pressurization.
Preferably, the pressurized control unit, in addition to：
Second pressurized control subelement, for being more than or equal to the pulse wave most when the current pressure value of the air bag
When 1.2 times of the corresponding pressure value of peak value point are added corresponding pressurization value with 20mmHg, stop pressurization.
Preferably, the pressurized control unit, in addition to：
3rd pressurized control subelement, for continuous two arteries and veins collected after in peak-peak point corresponding pulse wave
Fight ripple, when the ratio of its corresponding peak point and the peak-peak point is respectively smaller than 0.5 and 0.4, stop pressurization.
Relatively first technology, the present invention possesses following advantage：
According to a kind of ambulatory blood pressure measuring method and system of the present invention, the rotating speed of pump is adjusted by dynamic, to control gas
The pressure value of capsule at the uniform velocity rises, in pressure process, obtains pressure value based on pressure sensor, the pressure value is filtered
Pulse wave is obtained, and recognizes the peak point of the pulse wave, when the current pressure value of the air bag is equal to first threshold, is started
Judge whether the current pressure value of the air bag is more than or equal to anticipation pressurization value, when the current pressure value of the air bag is less than in advance
Sentence pressurization value, on the basis of first threshold, when the pressure value that the air bag rises is equal to N times of Second Threshold, carry out N+1
It is secondary to judge, determine whether the current pressure value of the air bag is more than or equal to anticipation pressurization value, when the current pressure of the air bag
When value is more than or equal to anticipation pressurization value, stops pressurization, based on the peak point of the pulse wave, determine systolic pressure and diastolic pressure.
Blood pressure is measured in pressure process, time and time of measuring that upper arm is under pressure is reduced, reduces the blood vessel of user due to length
The error for the measurement result that time can not be recovered to cause in time by compressing, comfort level and the standard of measurement that raising user uses
Exactness；Using at the uniform velocity steady pressurization during measurement blood pressure, and suitable add, is pressurized to according to the blood pressure personalization of user
Pressure value, improves the accuracy of measurement.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 shows a kind of flow chart of the according to embodiments of the present invention one ambulatory blood pressure measuring method embodiment provided；
Fig. 2 shows the schematic diagram that gasbag pressure rises in pressure process；
Fig. 3 shows the schematic diagram of ladder judgment mode；
Fig. 4 shows a kind of flow chart of the according to embodiments of the present invention two ambulatory blood pressure measuring method embodiments provided；
Fig. 5 shows a kind of structural frames of the according to embodiments of the present invention three Dynamic blood pressure measure system embodiments provided
Figure；
Fig. 6 shows a kind of structural frames of the according to embodiments of the present invention four Dynamic blood pressure measure system embodiments provided
Figure.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Complete conveys to those skilled in the art.
Embodiment one
Reference picture 1, shows a kind of flow chart of according to embodiments of the present invention one ambulatory blood pressure measuring method embodiment,
Specifically it may include steps of：
Step 101, the rotating speed of pump is adjusted by dynamic, to control the pressure value of air bag at the uniform velocity to rise.
In the embodiment of the present invention, whole pressure process can be divided into three phases, be early stage, mid-term and later stage respectively.
The stage for just starting pressurization belongs to early stage, due to when just starting pressurization, not having gas in air bag, it is necessary first to fill to air bag
Gas, if the rotating speed of pump is fixed, can cause early stage inflationtime longer, and the pressure value in air bag rises slowly, therefore, firm
When starting pressurization, adjustment pump controls the pressure value rapid increase of air bag with larger rotating speed, when being pressurized to 10mmHg or pressurization speed
Degree reach 2mmHg/s when, ladder reduce pump rotating speed so that reduce early stage pressing time and revolution speed reduction when bring tremble
Dynamic interference.When the mid-term in pressure process, if the rotating speed of pump is fixed, the pressure value rate of climb of air bag is accelerated,
Period is it is possible that the too fast situation of the rate of climb, it is therefore desirable to the rotating speed of dynamic adjustment pump, controls the pressure value of air bag even
Speed rises.When the later stage in pressure process, the gas in air bag is more sufficient, if the rotating speed of pump is fixed, air bag
The pressure value rate of climb decline, accordingly, it would be desirable to dynamic adjustment pump rotating speed, control air bag pressure value at the uniform velocity rise.
Reference picture 2, shows the schematic diagram that gasbag pressure rises in pressure process.
As shown in Fig. 2 abscissa is the time T of pressurization, unit is s, and ordinate is the pressure value of air bag, and unit is
mmHg；Curve 21 is existing pressure method, and it uses the rotating speed of pump to be fixed, the pressure value in pressurization early stage, air bag
Rise slowly, in pressurization mid-term, the pressure value rate of climb of air bag is accelerated, after the pressurizing phase, the pressure value rate of climb of air bag
Decline；22 be the variation relation of the gasbag pressure value that is obtained using at the uniform velocity steady pressure method with pressing time, before pressurization
Interim, adjustment pump controls the pressure value rapid increase of air bag with larger rotating speed, when being pressurized to 10mmHg or pressing speed is reached
During 2mmHg/s, the pressure value of control air bag at the uniform velocity rises, and the rotating speed of pump is adjusted by dynamic in the mid-term of pressurization and later stage, with
The pressure value of control air bag at the uniform velocity rises.
Step 102, in pressure process, pressure value is obtained based on pressure sensor.
In the embodiment of the present invention, by above-mentioned pressure method, the pressure value of control air bag at the uniform velocity rises, and passes through dynamic tune
The rotating speed of whole pump, pressurizes to air bag always, and until pressurization terminates, pump does not stop in pilot process, reduces the loss to pump.
In pressure process, pressure value is obtained by pressure sensor, and the pressure value got is sent to control chip.
Step 103, the pressure value is filtered and obtains pulse wave, and recognize the peak point of the pulse wave.
In the embodiment of the present invention, control chip is got after pressure value, and pressure value is filtered, by the pressure value of air bag
And the pressure value that interference fringe comes is filtered out, and obtains pulse wave, wherein, the frequency of pulse wave is between 0.5-10HZ, it is therefore desirable to
Rejection frequency is in more than 10HZ interference pressure value, and the pressure value of air bag at the uniform velocity rises, therefore can directly filter out the pressure of air bag
The influence that value is brought.Then, based on obtained pulse wave, the peak point of pulse wave is recognized, and by all peak points collected
Stored, be easy to the calculating of follow-up systolic pressure and diastolic pressure.
Because using at the uniform velocity steady pressurization, the pulse wave got is evenly distributed, and is subsequently calculating systolic pressure and diastolic pressure
When, result of calculation is more accurate.
Step 104, when the current pressure value of the air bag is equal to first threshold, start to judge the pressure of the air bag currently
Whether force value is more than or equal to anticipation pressurization value.
In the embodiment of the present invention, when the current pressure value of air bag is equal to first threshold, proceeds by and judge for the first time, really
Whether the current pressure value of the fixed air bag is more than or equal to anticipation pressurization value.
When the current pressure value of air bag is equal to first threshold, start to do the peak point of all pulse waves of identification
A filtering is disturbed, noise spot is smoothed, this noise spot is replaced with the average put around noise spot, interference is removed, improved
Anti-interference, improves the accuracy of measurement.
For example, first threshold is 100mmHg, when the current pressure value of air bag is 100mmHg, first time judgement is carried out, really
Determine whether the current pressure value 100mmHg of air bag is more than or equal to anticipation pressurization value.
Step 105, it is described on the basis of first threshold when the current pressure value of the air bag is less than anticipation pressurization value
When the pressure value that air bag rises is equal to N times of Second Threshold, the N+1 times judgement is carried out, the current pressure value of the air bag is determined
Whether anticipation pressurization value is more than or equal to；The N is the integer more than or equal to 1.
In the embodiment of the present invention, judge whether the current pressure value of air bag is pressurized to suitably by the way of ladder judges
Pressurization value.When judging first time, if the current pressure value of air bag is less than anticipation pressurization value, on the basis of first threshold
Continue to pressurize, when the pressure value that this air bag rises is equal to Second Threshold, carries out second and judge, determine the pressure of air bag currently
Whether force value is more than or equal to anticipation pressurization value；If the current pressure value of air bag is also less than anticipation pressurization value, continue to pressurize,
On the basis of first threshold, when the pressure value that air bag rises is equal to 2 times of Second Threshold, third time judgement is carried out, air bag is determined
Whether current pressure value is more than or equal to anticipation pressurization value.According to this pressurization judgment mode, when the current pressure value of air bag
Less than anticipation pressurization value, continue to pressurize, on the basis of first threshold, the pressure value that air bag rises is equal to N times of Second Threshold
When, carry out the N+1 time judgement, determine the current pressure value of air bag whether be more than or equal to anticipation pressurization value, wherein, N for more than
Integer equal to 1, when determining the current pressure value of air bag always more than or equal to anticipation pressurization value, just stops pressurization.It is described
Anticipation pressurization value is to go out suitable pressurization value according to the blood pressure anticipation of user itself, is pressurized to properly according to user's blood pressure personalization
Pressurization value, improve measurement accuracy.
For example, first threshold is 100mmHg, Second Threshold is 10mmHg, if the current pressure value 100mmHg of air bag is small
When anticipation pressurization value, continue to pressurize, when the current pressure value of air bag is 110mmHg, carries out second and judge, determine air bag
Whether current pressure value 110mmHg is more than or equal to anticipation pressurization value；If the current pressure value of air bag is also less than anticipation and added
Pressure value, continues to pressurize, and when the current pressure value of air bag is 120mmHg, carries out third time judgement, air bag is determined always current
Pressure value be more than or equal to anticipation pressurization value when, just stop pressurize.
Reference picture 3, shows the schematic diagram of ladder judgment mode.
As shown in figure 3, after air bag is pressurized to 100mmHg, judging every 10mmHg the peak point got, really
It is fixed whether to reach anticipation pressurization value.In (a) stage, the current pressure value of correspondence air bag is 100mmHg, its peak point collected
It is overall in rising trend, then continue to pressurize, judged again in next 10mmHg；In (b) stage, correspondence air bag is current
Pressure value is 120mmHg, now finds occur noise spot in pressure process, noise spot is smoothed, use noise spot
The average of surrounding point replaces this noise spot, removes interference, raising anti-interference；In (c) stage, the current pressure value of correspondence air bag
For 140mmHg, its peak point collected or in rising trend then continues to pressurize, sentenced again in next 10mmHg
It is disconnected；In (d) stage, the current pressure value of correspondence air bag is 160mmHg, and the peak point that it is collected is on a declining curve, according to arteries and veins
The waveform of ripple of fighting estimates out anticipation pressurization value, judges that the current pressure value of air bag does not reach anticipation pressurization value, then continues to pressurize,
Next 10mmHg is judged again；In (e) stage, the current pressure value of correspondence air bag is 170mmHg, judges that air bag is current
Pressure value reach anticipation pressurization value, stop pressurization.
Step 106, when the current pressure value of the air bag is more than or equal to anticipation pressurization value, pressurization is stopped.
In the embodiment of the present invention, when the current pressure value of air bag is more than or equal to anticipation pressurization value, stop pressurization, directly
The gas in air bag is excluded, without pressure reduction.
Step 107, the peak point based on the pulse wave, determines systolic pressure and diastolic pressure.
In the embodiment of the present invention, according to all peak points of the pulse wave of storage, envelope is obtained based on all peak points
Line, the geometry to envelope is analyzed, and the corresponding pressure value of peak of envelope is mean pressure, is passed through by mean pressure
Ratio method or bathmometry calculate systolic pressure and diastolic pressure.Specific algorithm is similar with prior art principle, is not detailed herein.
Heart rate can also be calculated by waveform number of the pulse wave within a period of time.
Relatively first technology, the embodiment of the present invention possesses following advantage：
The embodiment of the present invention adjusts the rotating speed of pump by dynamic, to control the pressure value of air bag at the uniform velocity to rise, is pressurizeing
Cheng Zhong, obtains pressure value based on pressure sensor, the pressure value is filtered and obtains pulse wave, and recognizes the pulse wave
Peak point, when the current pressure value of the air bag be equal to first threshold when, start to judge that the current pressure value of the air bag is
It is no to be more than or equal to anticipation pressurization value, when the current pressure value of the air bag is less than anticipation pressurization value, on the basis of first threshold
On, when the pressure value that the air bag rises is equal to N times of Second Threshold, the N+1 time judgement is carried out, determine the air bag currently
Whether pressure value is more than or equal to anticipation pressurization value, when the current pressure value of the air bag is more than or equal to anticipation pressurization value,
Stop pressurization, based on the peak point of the pulse wave, determine systolic pressure and diastolic pressure.Blood pressure is measured in pressure process, is reduced
Time and time of measuring that upper arm is under pressure, reduce the blood vessel of user because long-time can not be recovered to make in time by compressing
Into measurement result error, improve the degree of accuracy of the comfort level that uses of user and measurement；Make during blood pressure is measured
Pressurizeed with the uniform velocity steady, and suitable pressurization value is pressurized to according to the blood pressure personalization of user, improve the accuracy of measurement.
Embodiment two
Reference picture 4, shows a kind of flow chart of according to embodiments of the present invention two ambulatory blood pressure measuring method embodiment,
Specifically it may include steps of：
Step 401, the variable quantity of the dutycycle based on control chip pin, the rotating speed of dynamic adjustment pump.
In the embodiment of the present invention, pass through the dutycycle of control chip pump signal pin, the rotating speed of controlling pump, based on control core
The variable quantity of the dutycycle of piece pump signal pin, the variable quantity of dynamic adjustment revolution speed.Dutycycle and the size of revolution speed are into just
Than when dutycycle is bigger, revolution speed is bigger；When dutycycle is smaller, revolution speed is smaller.
The dutycycle refers to the ratio of the time that pulse takes in one section of stream time and total time.It is described to account for
The variable quantity of empty ratio is related to pressure value that air bag is current and current pressing speed.
The corresponding relation of the variable quantity of the dutycycle pressure value current with air bag and current pressing speed is：△ D=
0.004 × P ﹣ 2 × (V ﹣ V0), wherein, △ D are the variable quantity of dutycycle, and P is the current pressure value of air bag, and V is current pressurization
Speed, V0For pre-determined stability speed, pre-determined stability speed can use 6mmHg/s, and the specific numerical value embodiment of the present invention is to this
It is not limited.
Step 402, the rotating speed based on the pump, the pressure value of control air bag at the uniform velocity rises.
In the embodiment of the present invention, the rotating speed of pump is adjusted by dynamic, the pressure value of control air bag at the uniform velocity rises.
Step 403, in pressure process, pressure value is obtained based on pressure sensor.
This step is similar with step 102 principle in embodiment one, will not be described in detail herein.
Step 404, the pressure value is filtered and obtains pulse wave, and recognize the peak point of the pulse wave.
This step is similar with step 103 principle in embodiment one, will not be described in detail herein.
Step 405, when the current pressure value of the air bag is equal to first threshold, start to judge the pressure of the air bag currently
Whether force value is more than or equal to anticipation pressurization value.
This step is similar with step 104 principle in embodiment one, will not be described in detail herein.
Step 406, it is described on the basis of first threshold when the current pressure value of the air bag is less than anticipation pressurization value
When the pressure value that air bag rises is equal to N times of Second Threshold, the N+1 times judgement is carried out, the current pressure value of the air bag is determined
Whether anticipation pressurization value is more than or equal to；The N is the integer more than or equal to 1.
This step is similar with step 105 principle in embodiment one, will not be described in detail herein.
Step 407, when the current pressure value of the air bag is more than or equal to anticipation pressurization value, pressurization is stopped.
In the embodiment of the present invention, when the current pressure value of air bag is more than or equal to anticipation pressurization value, stop pressurization, directly
The gas in air bag is excluded, without pressure reduction.
Wherein, anticipation pressurization value can be estimated out according to following three kinds of modes, when the current pressure value of air bag meet with
During any one in lower three kinds of modes, stop pressurization.
Preferably, the step 407, including：
Sub-step 4071, when the current pressure value of the air bag is more than or equal to 280mmHg, stops pressurization.
When the current pressure value of air bag is more than or equal to 280mmHg, stop pressurization.
Sub-step 4072, when the current pressure value of the air bag is more than or equal to the peak-peak point correspondence of the pulse wave
1.2 times of pressure value when being added corresponding pressurization value with 20mmHg, stop pressurization.
The corresponding pressure value of peak-peak point of pulse wave is obtained, 1.2 are multiplied by the pressure value and adds 20mmHg, then
Anticipation pressurization value is obtained, when the current pressure value of air bag is more than or equal to the anticipation pressurization value, stops pressurization.
Sub-step 4073, continuous two pulse waves collected after in peak-peak point corresponding pulse wave, its correspondence
The ratio of peak point and peak-peak point when being respectively smaller than 0.5 and 0.4, stop pressurization.
Continuous two pulse waves collected after the corresponding pulse wave of peak-peak point, wherein close to peak-peak point pair
The pulse wave answered is the first pulse wave, is the second pulse wave, the first pulse wave correspondence away from the corresponding pulse wave of peak-peak point
The ratio of peak point and peak-peak point be less than 0.5, and the ratio of the corresponding peak point of the second pulse wave and peak-peak point
During less than 0.4, it is determined that be pressurized to anticipation pressurization value, stop pressurization.
Step 408, the peak point based on the pulse wave, determines systolic pressure and diastolic pressure.
This step is similar with step 107 principle in embodiment one, will not be described in detail herein.
Relatively first technology, the embodiment of the present invention possesses following advantage：
The variable quantity of dutycycle of the embodiment of the present invention based on control chip pin, the rotating speed of dynamic adjustment pump, based on institute
The rotating speed of pump is stated, the pressure value of control air bag at the uniform velocity rises, in pressure process, pressure value is obtained based on pressure sensor, it is right
The pressure value, which is filtered, obtains pulse wave, and recognizes the peak point of the pulse wave, when the current pressure value of the air bag
During equal to first threshold, start to judge whether the current pressure value of the air bag is more than or equal to anticipation pressurization value, when the gas
The current pressure value of capsule is less than anticipation pressurization value, on the basis of first threshold, and the pressure value that the air bag rises is equal to second
At N times of threshold value, the N+1 time judgement is carried out, whether the current pressure value of the air bag is determined more than or equal to anticipation pressurization value,
When the current pressure value of the air bag is more than or equal to anticipation pressurization value, stop pressurization, based on the peak point of the pulse wave,
Determine systolic pressure and diastolic pressure.Blood pressure is measured in pressure process, time and time of measuring that upper arm is under pressure is reduced, subtracts
The error for the measurement result that the blood vessel of small user can not be recovered to cause in time due to long-time by compressing, improves what user used
Comfort level and the degree of accuracy of measurement；Using at the uniform velocity steady pressurization during blood pressure is measured, and according to the blood pressure of user
Property be pressurized to suitable pressurization value, improve the accuracy of measurement.
For embodiment of the method, in order to be briefly described, therefore it is all expressed as to a series of combination of actions, but this area
Technical staff should know that the embodiment of the present invention is not limited by described sequence of movement, because according to present invention implementation
Example, some steps can be carried out sequentially or simultaneously using other.Secondly, those skilled in the art should also know, specification
Described in embodiment belong to necessary to preferred embodiment, the involved action not necessarily embodiment of the present invention.
Embodiment three
Reference picture 5, shows a kind of structural frames of according to embodiments of the present invention three Dynamic blood pressure measure system embodiment
Figure, can specifically include such as lower unit：
The system includes：Control chip, pressure sensor, air bag, pump；
The control chip includes：
Adjustment of rotational speed unit 501, the rotating speed for adjusting pump by dynamic, to control the pressure value of air bag at the uniform velocity to rise.
Signal acquiring unit 502, in pressure process, pressure value to be obtained based on pressure sensor.
Signal processing unit 503, is filtered to the pressure value and obtains pulse wave, and recognizes the peak value of the pulse wave
Point.
First judging unit 504, for when the current pressure value of the air bag is equal to first threshold, starting to judge described
Whether the current pressure value of air bag is more than or equal to anticipation pressurization value.
Second judging unit 505, for being less than anticipation pressurization value when the current pressure value of the air bag, in first threshold
On the basis of, when the pressure value that the air bag rises is equal to N times of Second Threshold, the N+1 times judgement is carried out, determines that the air bag is worked as
Whether preceding pressure value is more than or equal to anticipation pressurization value；The N is the integer more than or equal to 1.
Pressurized control unit 506, for when the current pressure value of the air bag is more than or equal to anticipation pressurization value, stopping
Pressurization.
Computing unit 507, for the peak point based on the pulse wave, determines systolic pressure and diastolic pressure.
Relatively first technology, the embodiment of the present invention possesses following advantage：
The embodiment of the present invention adjusts the rotating speed of pump by dynamic, to control the pressure value of air bag at the uniform velocity to rise, is pressurizeing
Cheng Zhong, obtains pressure value based on pressure sensor, the pressure value is filtered and obtains pulse wave, and recognizes the pulse wave
Peak point, when the current pressure value of the air bag be equal to first threshold when, start to judge that the current pressure value of the air bag is
It is no to be more than or equal to anticipation pressurization value, when the current pressure value of the air bag is less than anticipation pressurization value, on the basis of first threshold
On, when the pressure value that the air bag rises is equal to N times of Second Threshold, the N+1 time judgement is carried out, determine the air bag currently
Whether pressure value is more than or equal to anticipation pressurization value, when the current pressure value of the air bag is more than or equal to anticipation pressurization value,
Stop pressurization, based on the peak point of the pulse wave, determine systolic pressure and diastolic pressure.Blood pressure is measured in pressure process, is reduced
Time and time of measuring that upper arm is under pressure, reduce the blood vessel of user because long-time can not be recovered to make in time by compressing
Into measurement result error, improve the degree of accuracy of the comfort level that uses of user and measurement；Make during blood pressure is measured
Pressurizeed with the uniform velocity steady, and suitable pressurization value is pressurized to according to the blood pressure personalization of user, improve the accuracy of measurement.
Example IV
Reference picture 6, shows a kind of structural frames of according to embodiments of the present invention four Dynamic blood pressure measure system embodiment
Figure, can specifically include such as lower unit：
The system includes：Control chip, pressure sensor, air bag, pump；
The control chip includes：
Dynamic adjustment unit 601, for the variable quantity of the dutycycle based on control chip pin, turn of dynamic adjustment pump
Speed.
IP170558
Wherein, the variable quantity of the dutycycle is related to pressure value that the air bag is current and current pressing speed.
Pressure value control unit 602, for the rotating speed based on the pump, the pressure value of control air bag at the uniform velocity rises.
Signal acquiring unit 603, in pressure process, pressure value to be obtained based on pressure sensor.
Signal processing unit 604, is filtered to the pressure value and obtains pulse wave, and recognizes the peak value of the pulse wave
Point.
First judging unit 605, for when the current pressure value of the air bag is equal to first threshold, starting to judge described
Whether the current pressure value of air bag is more than or equal to anticipation pressurization value.
Second judging unit 606, for being less than anticipation pressurization value when the current pressure value of the air bag, in first threshold
On the basis of, when the pressure value that the air bag rises is equal to N times of Second Threshold, the N+1 times judgement is carried out, determines that the air bag is worked as
Whether preceding pressure value is more than or equal to anticipation pressurization value；The N is the integer more than or equal to 1.
Pressurized control unit 607, for when the current pressure value of the air bag is more than or equal to anticipation pressurization value, stopping
Pressurization.
The pressurized control unit 607, including：
First pressurized control subelement 6071, for when the current pressure value of the air bag be more than or equal to 280mmHg when,
Stop pressurization.
Second pressurized control subelement 6072, for being more than or equal to the pulse wave when the current pressure value of the air bag
1.2 times of the corresponding pressure value of peak-peak point when being added corresponding pressurization value with 20mmHg, stop pressurization.
3rd pressurized control subelement 6073, for collected after in peak-peak point corresponding pulse wave continuous two
Individual pulse wave, when the ratio of its corresponding peak point and the peak-peak point is respectively smaller than 0.5 and 0.4, stops pressurization.
Computing unit 608, for the peak point based on the pulse wave, determines systolic pressure and diastolic pressure.
Relatively first technology, the embodiment of the present invention possesses following advantage：
The variable quantity of dutycycle of the embodiment of the present invention based on control chip pin, the rotating speed of dynamic adjustment pump, based on institute
The rotating speed of pump is stated, the pressure value of control air bag at the uniform velocity rises, in pressure process, pressure value is obtained based on pressure sensor, it is right
The pressure value, which is filtered, obtains pulse wave, and recognizes the peak point of the pulse wave, when the current pressure value of the air bag
During equal to first threshold, start to judge whether the current pressure value of the air bag is more than or equal to anticipation pressurization value, when the gas
The current pressure value of capsule is less than anticipation pressurization value, on the basis of first threshold, and the pressure value that the air bag rises is equal to second
At N times of threshold value, the N+1 time judgement is carried out, whether the current pressure value of the air bag is determined more than or equal to anticipation pressurization value,
When the current pressure value of the air bag is more than or equal to anticipation pressurization value, stop pressurization, based on the peak point of the pulse wave,
Determine systolic pressure and diastolic pressure.Blood pressure is measured in pressure process, time and time of measuring that upper arm is under pressure is reduced, subtracts
The error for the measurement result that the blood vessel of small user can not be recovered to cause in time due to long-time by compressing, improves what user used
Comfort level and the degree of accuracy of measurement；Using at the uniform velocity steady pressurization during blood pressure is measured, and according to the blood pressure of user
Property be pressurized to suitable pressurization value, improve the accuracy of measurement.
For device embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, it is related
Part illustrates referring to the part of embodiment of the method.
Algorithm and display be not inherently related to any certain computer, virtual system or miscellaneous equipment provided herein.
Various general-purpose systems can also be used together with based on teaching in this.As described above, construct required by this kind of system
Structure be obvious.In addition, the present invention is not also directed to any certain programmed language.It is understood that, it is possible to use it is various
Programming language realizes the content of invention described herein, and the description done above to language-specific is to disclose this hair
Bright preferred forms.
In the specification that this place is provided, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the present invention
Example can be put into practice in the case of these no details.In some instances, known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this description.
Similarly, it will be appreciated that in order to simplify the disclosure and help to understand one or more of each inventive aspect, exist
Above in the description of the exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following intention：It is i.e. required to protect
The application claims of shield features more more than the feature being expressly recited in each claim.More precisely, such as following
Claims reflect as, inventive aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following embodiment are expressly incorporated in the embodiment, wherein each claim is in itself
All as the separate embodiments of the present invention.
Those skilled in the art, which are appreciated that, to be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more equipment different from the embodiment.Can be the module or list in embodiment
Member or component be combined into a module or unit or component, and can be divided into addition multiple submodule or subelement or
Sub-component.In addition at least some in such feature and/or process or unit exclude each other, it can use any
Combination is disclosed to all features disclosed in this specification (including adjoint claim, summary and accompanying drawing) and so to appoint
Where all processes or unit of method or equipment are combined.Unless expressly stated otherwise, this specification (including adjoint power
Profit is required, summary and accompanying drawing) disclosed in each feature can or similar purpose identical, equivalent by offer alternative features come generation
Replace.
Although in addition, it will be appreciated by those of skill in the art that some embodiments described herein include other embodiments
In included some features rather than further feature, but the combination of the feature of be the same as Example does not mean in of the invention
Within the scope of and form different embodiments.For example, in the following claims, times of embodiment claimed
One of meaning mode can be used in any combination.
The present invention all parts embodiment can be realized with hardware, or with one or more processor run
Software module realize, or realized with combinations thereof.It will be understood by those of skill in the art that can use in practice
Microprocessor or digital signal processor (DSP) realize one in ambulatory blood pressure measuring apparatus according to embodiments of the present invention
The some or all functions of a little or whole parts.The present invention is also implemented as performing method as described herein
Some or all equipment or program of device (for example, computer program and computer program product).It is such to realize
The program of the present invention can be stored on a computer-readable medium, or can have the form of one or more signal.This
The signal of sample can be downloaded from internet website and obtained, and either provided or carried in any other form on carrier signal
For.
It should be noted that the present invention will be described rather than limits the invention for above-described embodiment, and ability
Field technique personnel can design alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between bracket should not be configured to limitations on claims.Word "comprising" is not excluded the presence of not
Element or step listed in the claims.Word "a" or "an" before element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of some different elements and coming real by means of properly programmed computer
It is existing.In if the unit claim of equipment for drying is listed, several in these devices can be by same hardware branch
To embody.The use of word first, second, and third does not indicate that any order.These words can be explained and run after fame
Claim.
Claims (10)
1. a kind of ambulatory blood pressure measuring method, it is characterised in that including：
By the rotating speed of dynamic adjustment pump, to control the pressure value of air bag at the uniform velocity to rise；
In pressure process, pressure value is obtained based on pressure sensor；
The pressure value is filtered and obtains pulse wave, and recognizes the peak point of the pulse wave；
When the current pressure value of the air bag is equal to first threshold, start to judge whether the current pressure value of the air bag is more than
Or equal to anticipation pressurization value；
When the current pressure value of the air bag is less than anticipation pressurization value, on the basis of first threshold, the pressure that the air bag rises
When force value is equal to N times of Second Threshold, the N+1 times judgement is carried out, determines whether the current pressure value of the air bag is more than or waits
In anticipation pressurization value；The N is the integer more than or equal to 1；
When the current pressure value of the air bag is more than or equal to anticipation pressurization value, stop pressurization；
Based on the peak point of the pulse wave, systolic pressure and diastolic pressure are determined.
2. according to the method described in claim 1, it is characterised in that the rotating speed that pump is adjusted by dynamic, to control air bag
Pressure value the step of at the uniform velocity rise, including：
The variable quantity of dutycycle based on control chip pin, the rotating speed of dynamic adjustment pump；
Based on the rotating speed of the pump, the pressure value of control air bag at the uniform velocity rises.
3. method according to claim 2, it is characterised in that the variable quantity of the dutycycle and the pressure of the air bag currently
Force value and current pressing speed are related.
4. according to the method described in claim 1, it is characterised in that the pressure value current when the air bag is more than or equal to
During anticipation pressurization value, the step of stopping pressurization, including：
When the current pressure value of the air bag is more than or equal to 280mmHg, stop pressurization.
5. according to the method described in claim 1, it is characterised in that the pressure value current when the air bag is more than or equal to
During anticipation pressurization value, the step of stopping pressurization, in addition to：
When the current pressure value of the air bag is more than or equal to 1.2 times of the corresponding pressure value of peak-peak point of the pulse wave
When being added corresponding pressurization value with 20mmHg, stop pressurization.
6. according to the method described in claim 1, it is characterised in that the pressure value current when the air bag is more than or equal to
During anticipation pressurization value, the step of stopping pressurization, in addition to：
Continuous two pulse waves collected after in peak-peak point corresponding pulse wave, its corresponding peak point with it is described most
When the ratio of peak value point is respectively smaller than 0.5 and 0.4, stop pressurization.
7. a kind of Dynamic blood pressure measure system, it is characterised in that including：Control chip, pressure sensor, air bag, pump；
The control chip includes：
Adjustment of rotational speed unit, the rotating speed for adjusting pump by dynamic, to control the pressure value of air bag at the uniform velocity to rise；
Signal acquiring unit, in pressure process, pressure value to be obtained based on pressure sensor；
Signal processing unit, is filtered to the pressure value and obtains pulse wave, and recognizes the peak point of the pulse wave；
First judging unit, for when the current pressure value of the air bag is equal to first threshold, starting to judge that the air bag is worked as
Whether preceding pressure value is more than or equal to anticipation pressurization value；
Second judging unit, for being less than anticipation pressurization value when the current pressure value of the air bag, on the basis of first threshold,
When the pressure value that the air bag rises is equal to N times of Second Threshold, the N+1 times judgement is carried out, the pressure of the air bag currently is determined
Whether force value is more than or equal to anticipation pressurization value；The N is the integer more than or equal to 1；
Pressurized control unit, for when the current pressure value of the air bag is more than or equal to anticipation pressurization value, stopping pressurization；
Computing unit, for the peak point based on the pulse wave, determines systolic pressure and diastolic pressure.
8. system according to claim 7, it is characterised in that the adjustment of rotational speed unit, including：
Dynamic adjustment unit, for the variable quantity of the dutycycle based on control chip pin, the rotating speed of dynamic adjustment pump；
Pressure value control unit, for the rotating speed based on the pump, the pressure value of control air bag at the uniform velocity rises.
9. system according to claim 8, it is characterised in that the variable quantity of the dutycycle and the pressure of the air bag currently
Force value and current pressing speed are related.
10. system according to claim 7, it is characterised in that the pressurized control unit, including：
First pressurized control subelement, for when the current pressure value of the air bag is more than or equal to 280mmHg, stopping adding
Pressure.
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| CN201710250378.0A CN107049290B (en) | 2017-04-17 | 2017-04-17 | Dynamic blood pressure measuring method and system |
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| CN201710250378.0A CN107049290B (en) | 2017-04-17 | 2017-04-17 | Dynamic blood pressure measuring method and system |
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| CN107049290B CN107049290B (en) | 2020-05-29 |
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| CN107260148A (en) * | 2017-07-12 | 2017-10-20 | 北京卫嘉高科信息技术有限公司 | A kind of blood pressure measuring method, storage device and device |
| CN110013233A (en) * | 2019-04-04 | 2019-07-16 | 博脉有限公司 | Pulse condition analyser and its control method |
| CN110115573A (en) * | 2019-05-27 | 2019-08-13 | 威海威高医疗影像科技有限公司 | A kind of blood pressure interval measurement the blowing pressure control method, device and patient monitor |
| CN111317460A (en) * | 2018-12-14 | 2020-06-23 | 深圳迈瑞生物医疗电子股份有限公司 | Air inflation and deflation control method, control system and device for blood pressure measurement |
| WO2020132898A1 (en) * | 2018-12-25 | 2020-07-02 | 深圳市大富网络技术有限公司 | Blood pressure and pulse detection method, device, and system |
| WO2020200275A1 (en) * | 2019-04-04 | 2020-10-08 | 北京太一科技有限公司 | Pulse meter and control method therefor |
| WO2020223934A1 (en) * | 2019-05-08 | 2020-11-12 | 深圳市长桑技术有限公司 | Sphygmomanometer, sphygmomanometer control method, and method for measuring effective pulse wave |
| CN114533009A (en) * | 2020-11-25 | 2022-05-27 | 华为技术有限公司 | Blood pressure measuring device and pressurizing method thereof |
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| WO2020223934A1 (en) * | 2019-05-08 | 2020-11-12 | 深圳市长桑技术有限公司 | Sphygmomanometer, sphygmomanometer control method, and method for measuring effective pulse wave |
| CN113811238A (en) * | 2019-05-08 | 2021-12-17 | 深圳市长桑技术有限公司 | Sphygmomanometer, sphygmomanometer control method, and method for detecting effective pulse wave |
| CN113811238B (en) * | 2019-05-08 | 2024-04-19 | 长桑数字技术(青岛)有限公司 | Sphygmomanometer, sphygmomanometer control method and method for detecting effective pulse wave |
| CN110115573A (en) * | 2019-05-27 | 2019-08-13 | 威海威高医疗影像科技有限公司 | A kind of blood pressure interval measurement the blowing pressure control method, device and patient monitor |
| CN114533009A (en) * | 2020-11-25 | 2022-05-27 | 华为技术有限公司 | Blood pressure measuring device and pressurizing method thereof |
| WO2022111422A1 (en) * | 2020-11-25 | 2022-06-02 | 华为技术有限公司 | Blood pressure measuring device and pressurization method thereof |
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