CN205144533U - Artery hardenability survey device and charging base - Google Patents
Artery hardenability survey device and charging base Download PDFInfo
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- CN205144533U CN205144533U CN201520943104.6U CN201520943104U CN205144533U CN 205144533 U CN205144533 U CN 205144533U CN 201520943104 U CN201520943104 U CN 201520943104U CN 205144533 U CN205144533 U CN 205144533U
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Abstract
The application discloses artery hardenability survey device includes sleeve area and the host computer connected by the gas conduit, the sleeve in -band has one or two gasbags, it fills gassing and measurement element to have a controller and one set or two sets in the host computer, every set fill the gassing and measurement element include a pressure sensor, an air pump and a discharge valve, pulse wave -wave shape that the controller obtained according to pressure sensor draw one or multinomial characteristic alone or the combination be used for surveing the artery hardenability. The utility model provides an independent measuring artery hardenability of convenient to use person survey device to adopt and survey the artery hardenability based on the characteristic that one or more is brand -new of pulse wave -wave shape. Two inside and outside gasbags have still been designed to pulse wave -wave shape for acquireing the high accuracy to position relation, size, cross sectional shape etc. To them have carried out the optimal design.
Description
Technical field
The application relates to a kind of arterial sclerosis degree determinator.
Background technology
Blood vessel connects heart and whole body elastic pipeline everywhere.The elastic reaction of blood vessel wall have accumulated the energy of Ve, ensures that blood is transported to whole body everywhere, reduces the load of heart.Sclerosis of blood vessels degree is an important indicator of reflection blood vessel elasticity.Existing technical scheme adopts various index to measure arterial sclerosis degree.
The Chinese invention patent in Authorization Notice No. CN102164535B, authorized announcement date on April 16th, 2014 discloses a kind of blood pressure information measurement apparatus, upper arm and ankle is wearing on respectively by two determinators, and Simultaneous Determination pulse wave, finally calculate pulse wave conduction speed (PWV, PulseWaveVelocity) as arteriosclerosis index.The blood that heart penetrates to aorta is at every turn that undulating is propagated to tip, is just called pulse wave.Pulse wave is called pulse wave conduction speed at the conduction velocity of tremulous pulse, can reflect aortic elasticity preferably.When arteriosclerosis degree increases, pulse wave conduction speed can be accelerated.
The Chinese utility model patent in Authorization Notice No. CN201088579Y, authorized announcement date on July 23rd, 2008 discloses a kind of arteriosclerosis and detects and apparatus for evaluating, at extremity, pressure transducer is all set to gather the blood pressure signal of left arm, right arm, left ankle, right ankle, be used for calculating the arteriosclerosis index of arm index (ABI, AnkleBrachialIndex) as lower limb.Arm index is ankle systolic pressure and brachial artery systolic pressure ratio, can reflect the degree of Lower Extremity Artery Stenosis and obstruction.Under normal circumstances, the blood pressure of lower limb is than the hypertension of upper limb.If higher than blood pressure 20-40mmHg (millimetres of mercury) left and right of upper limb, then likely there is obstruction of artery in the blood pressure of lower limb.
In order to calculate the index such as pulse wave conduction speed, arm index, need all to wear cuff in the position, at least one place of the position, at least one place of upper limb and lower limb, user is often difficult to independently realize measuring, and needs to measure to professional institutions such as hospitals.To calculate pulse wave conduction speed, need the arteries length between estimation two measuring positions, also be subject to the many factors such as position chanP, blood viscosity of the elasticity of arterial blood tube wall, the extruding of arteries Surrounding muscles, tester, this makes the degree of accuracy of measurement not high.
The Chinese invention patent in Authorization Notice No. CN101861121B, authorized announcement date on April 3rd, 2013 discloses a kind of arteriosclerosis degree judgment device.Placed along arteries axially-aligned by two air bags, then press this two air bags by the collar, and at collar arranged outside the 3rd air bag from the radial compression collar.Can gather high-precision pulse wave signal thus, the time difference that calculating is penetrated between blood ripple time of occurrence and echo time of occurrence is as the index judging arteriosclerosis degree.The cuff of the program is made up of the component of three air bags, a collar, a suppression vibration, complex structure.
The Chinese invention patent in Authorization Notice No. CN102036603B, authorized announcement date on March 6th, 2013 discloses a kind of blood pressure information measurement apparatus.Placed along arteries axially-aligned by two air bags, one of them air bag is used for measuring blood pressure information, and another air bag is used for gathering pulse wave signal.Calculate the time difference of penetrating between blood wave-wave peak time of occurrence and echo crest time of occurrence or calculate and penetrate time difference between blood ripple time of occurrence and echo time of occurrence or computational reflect ripple peak swing relative to penetrating the ratio of blood ripple peak swing as the index judging arteriosclerosis degree.The cuff of the program is made up of the air bag of two parallel placements.
Authorization Notice No. CN102159130B, authorized announcement date in December, 2014 Chinese invention patent of 24 days disclose a kind of arterial wall evaluation system.Its according to pressure footpath characteristic curve or according to the shape of pulse and amplitude or according to inside and outside differential pressure to the function after the characteristic curve differential of pressure footpath or carry out numerical integration again according to the pressure footpath characteristic curve after differential or evaluate arterial wall hardness according to the characteristic function in pressure footpath being fit to supposition.
The Chinese invention patent in Authorization Notice No. CN102599897B, authorized announcement date on May 20th, 2015 discloses a kind of circulating function determinator.Its calculating pulse wave accumulated value that multistage pulse wave information is added up, and utilize pulse wave accumulated value to measure arterial sclerosis degree, show in particular 11 kinds of embodiments.
Above four technical schemes all provide is convenient to the independent arterial sclerosis degree determinator measured, and adopts the wave character of pulse wave or the feature after processing further it to measure arterial sclerosis degree.Some of them technical scheme is improved traditional monosaccate cuff structure, is provided with at least two air bags and arranges along arteries axially-aligned.This can obtain high-precision pulse wave signal, but also brings the shortcoming of complex structure, cost rising, notes also and wears direction in order to avoid make mistakes.What each technical scheme adopted is not quite similar for the index measuring arterial sclerosis degree, differs from one another.
Summary of the invention
Technical problems to be solved in this application are to provide a kind of arterial sclerosis degree determinator, can by extracting the feature of pulse waveform as the index measuring arterial sclerosis degree.
For solving the problems of the technologies described above, the application's arterial sclerosis degree determinator comprises the cuff and main frame that are connected by gas conduit; There is in cuff one or two air bag; There are in main frame a controller and a set of or two cover inflation/deflation and measurement components; Often cover inflation/deflation and measurement components comprise a pressure transducer, an air pump and an air bleeding valve; Controller extracts one or more feature according to the pulse waveform that pressure transducer obtains and is used for alone or in combination measuring arterial sclerosis degree.
Further, an air bag is only had in cuff; A set of inflation/deflation and measurement components is only had, for the unique airbag aeration in cuff, venting, measurement air pressure in main frame.Or, there are in cuff two air bags; There is a set of inflation/deflation and measurement components, for inflating the air bag of two in cuff, exit, measure air pressure simultaneously in main frame.Or, there are in cuff two air bags; There are two cover inflation/deflation and measurement components, for inflating independently the air bag of two in cuff, exit, measure air pressure in main frame.
Further, when having two air bags in cuff, these two air bags are along the arranged radially of arteries direction, and arteries pressed close to by inner side air bag, and outside balloon encompass is in the outside of inner side air bag.
Further, when having two air bags in cuff, the size of inner side air bag is less than the size of outside air bag; The size of inner side air bag meets covering arteries width, and the size of outside air bag meets the measuring point roughly surrounding human body.
Further, inner side air bag is arranged on the distal end of outside air bag.
Further, when there are in cuff two air bags and there is in main frame two cover inflation/deflations and measurement components, inner side air bag or keep constant gas flow in the air bags process of outside, or also in aerofluxus.
Further, in the air bags process of outside, inner side air bag keeps roughly the same air pressure with outside air bag.
Further, when having two air bags in cuff, the cross sectional shape of inner side air bag is that two sides is smooth, two sides is protruded, the smooth one side of one side is protruded, one of the smooth one side depression of one side, two sides depression.
Further, described arterial sclerosis degree determinator also has or connects input block and output unit.It is one or more that input block comprises in switch, button, keyboard, mouse, touch screen.It is one or more that output unit comprises in display screen, touch screen, speech ciphering equipment, printer.
Further, described feature comprises main wave-amplitude rate of change VAc, tidal wave time of occurrence rate VTce, tidal wave amplitude change rate VAce, dicrotic wave time of occurrence rate VTgc, dicrotic wave amplitude change rate VAgf, average upstroke slope
one or more in blood pressure age coefficient C, time difference Δ t, artery stiffness index f.
The application's charging base comprises above-mentioned arterial sclerosis degree determinator, specifically comprises:
---base body, comprising the charging circuit charged from external power supply to electronic equipment, the discharge circuit obtaining power supply from electronic equipment, at least a set of inflation/deflation and measurement components; Base body connects electronic equipment by least one charging inlet, and this charging inlet is simultaneously for transmitting data between electronic equipment.
---cuff accommodation section, roll or folding cuff for holding.
---cuff, wherein has one or two air bag; Be connected by gas conduit between the inflation/deflation of air bag and base body and measurement components.
---electronic equipment, is connected with base body with charging inlet; Electronic equipment has control chip, at least one input block, at least one output unit; The control chip of electronic equipment internal is as the controller of main frame in arterial sclerosis degree determinator; The input block of electronic equipment is for controlling arterial sclerosis degree determinator; The output unit of electronic equipment is for reporting the measurement result of arterial sclerosis degree.
Further, when base body is connected with external power supply, then with external power supply on the one hand by charging circuit for electronic equipment charges, on the other hand for base body is powered.When base body do not connect external power supply but connect electronic equipment, then with electronic equipment by discharge circuit for base body is powered.
Further, described cuff accommodation section is that rack form is fixed on base body.Or establish a cavity to roll or folding cuff for placing in base body, then this cavity is cuff accommodation section.
Further, described cuff accommodation section is rack form, and the distance of the cuff accommodation section peristome of this rack form, middle part, distance from bottom base body is respectively a, b, c, then a >=b, b≤c.
The technique effect that the application obtains there is provided a kind of arterial sclerosis degree determinator be convenient to user and independently measured, and adopts the one or more brand-new feature based on pulse waveform to measure arterial sclerosis degree.For obtaining high-precision pulse waveform, have also been devised inside and outside two air bags, and design is optimized to their position relationship, size, cross sectional shape etc.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment one of the application's arterial sclerosis degree determinator.
Fig. 2 is the flow chart that embodiment one realizes measuring arterial sclerosis degree.
Fig. 3 is the structural representation of the embodiment two of the application's arterial sclerosis degree determinator.
Fig. 4 is the schematic diagram that the cuff of embodiment two is bundled in human body upper arm.
Fig. 5 is the flow chart that embodiment two realizes measuring arterial sclerosis degree.
Fig. 6 is the structural representation of the embodiment three of the application's arterial sclerosis degree determinator.
Fig. 7 is the flow chart that embodiment three realizes measuring arterial sclerosis degree.
Fig. 8 is the cross sectional shape schematic diagram of inner side air bag.
Fig. 9 is the schematic appearance of the charging base including the application's arterial sclerosis degree determinator.
Figure 10 is the waveform schematic diagram of human pulse ripple.
Figure 11 is the principle schematic that electric sphygmomanometer adopts oscillographic method Measure blood pressure.
Description of reference numerals in figure: 10 is cuff; 15 is air bag (outside air bag); 16 is inner side air bag; 20 is main frame; 21 is controller; 25,25a is pressure transducer; 26,26a is air pump; 27,27a is air bleeding valve; 30,30a is gas conduit.
Detailed description of the invention
Refer to Fig. 1, this is the embodiment one of the application's arterial sclerosis degree determinator.It comprises a cuff 10 and a main frame 20, is connected between the two by a gas conduit 30.Only have an air bag 15 in cuff 10, its size meets the measuring point roughly surrounding human body.In use, cuff 10 has arterial vascular position around the arm, wrist, leg, ankle etc. being bundled in human body, and arteries aimed at by unique air bag 15.There is in main frame 20 controller 21 and a set of inflation/deflation and measurement components (pressure transducer 25, air pump 26 and an air bleeding valve 27).Air pump 26 and air bleeding valve 27 are controlled by controller 21, and the data of detection are exported to controller 21 by pressure transducer 25.Air bag 15, pressure transducer 25, air pump 26 are connected with air bleeding valve 27 by unique gas conduit 30.
Refer to Fig. 2, the process that embodiment one measures arterial sclerosis degree comprises the steps:
Step S21, controller 21 makes air pump 26 work, and is unique air bag 15 fast aeration, until the endovascular blood flow of air bag 15 interruption artery by gas conduit 30.Pressure transducer 25 detects the air pressure in air bag 15 in real time in the process, when terminates to judge and to control inflation.Usually, gasbag pressure must not be greater than 290mmHg.
Step S22, controller 21 makes air bleeding valve 27 work, and be unique air bag 15 slowly aerofluxus by gas conduit 30, exhaust velocity is such as 2 ~ 8mmHg/s (millimetres of mercury/second).Along with air bags, arteries recovers blood flow gradually, and pressure transducer 25 detects the air pressure in air bag 15 in real time in the process, and obtains arterial vascular pulse waveform according to air pressure and the relation of time.
Step S23, controller 21 extracts one or more feature according to the pulse waveform that pressure transducer 25 obtains, and extracted feature is used for afterwards alone or in combination measuring arterial sclerosis degree.
Refer to Fig. 3, this is the embodiment two of the application's arterial sclerosis degree determinator.It comprises a cuff 10 and a main frame 20, is connected between the two by a gas conduit 30.Have two air bags in cuff 10, these two air bags are placed along arteries arranged radially, and arteries pressed close to by inner side air bag 16, and the outside of inner side air bag 16 pressed close to by outside air bag 15.Inner side air bag 16 size is less, and also referred to as ballonet, its width only need be more than or equal to arteries width.The size of outside air bag 15 is comparatively large, and also referred to as air vesicle, its size meets the measuring point roughly surrounding human body.In use, cuff 10 has arterial vascular position around the arm, wrist, leg, ankle etc. being bundled in human body, and arteries pressed close to by inner side air bag 16, and outside air bag 15 is enclosed in the outside of inner side air bag 16.Refer to Fig. 4, this is the schematic diagram that the cuff of embodiment two is bundled in human body upper arm.There is in main frame 20 controller 21 and a set of inflation/deflation and measurement components (pressure transducer 25, air pump 26 and an air bleeding valve 27).Air pump 26 and air bleeding valve 27 are controlled by controller 21, and the data of detection are exported to controller 21 by pressure transducer 25.Outside air bag 15, inner side air bag 16, pressure transducer 25, air pump 26 are connected with air bleeding valve 27 by unique gas conduit 30.
Compared with embodiment one, embodiment two have employed the cuff 10 of double bolloon 15,16.Outside air bag 15 in embodiment two is exactly the unique air bag 15 in embodiment one, and embodiment two is equivalent to increase the less inner side air bag 16 of a size newly in the inner side of unique air bag 15 of embodiment one.In the cuff of double bolloon, outside air bag 15 is mainly used to compressing and the endovascular blood flow of interruption artery, thus can block pulse wave.And inner side air bag 16 is used for improving the accuracy of detection of pulse waveform.Owing to sharing a set of inflation/deflation and measurement components, the air pressure in two air bags 15,16, inflationtime, aeration speed, evacuation time, exhaust velocity are all consistent.
Preferably, inner side air bag 16 is arranged on the distal end (one end away from heart) of outside air bag 15, is namely greater than the distance of outside air bag 15 and heart along air bag inside tremulous pulse direction 16 and the distance of heart, as shown in Figure 4.The proximal part (one end near heart) of such outside air bag 15 directly can contact and oppress human body artery blood vessel, is convenient to the blood flow in interruption artery blood vessel.And when blood flow in outside air bag 15 interruption artery blood vessel, arterial vascular major part of beating is blocked by outside air bag 15 and is absorbed, the impact of inner side air bag 16 is reached minimum, is conducive to that inner side air bag 16 collects more truly in outside air bag 15 subsequently slowly deflation course, pulse waveform more accurately.
Refer to Fig. 5, the process that embodiment two measures arterial sclerosis degree comprises the steps:
Step S51, controller 21 makes air pump 26 work, and is two air bags 15,16 fast aeration, until the endovascular blood flow of outside air bag 15 interruption artery by gas conduit 30.Pressure transducer 25 detects the air pressure in two air bags 15,16 in real time in the process, when terminates to judge and to control inflation.Usually, gasbag pressure must not be greater than 290mmHg.
Step S52, controller 21 makes air bleeding valve 27 work, and be the slow aerofluxuss of two air bags 15,16 by gas conduit 30, exhaust velocity is such as 2 ~ 8mmHg/s (millimetres of mercury/second).Along with outside air bag 15 aerofluxus, arteries recovers blood flow gradually, and pressure transducer 25 detects the air pressure in two air bags 15,16 in real time in the process, and obtains arterial vascular pulse waveform according to air pressure and the relation of time.
Step S53, controller 21 extracts one or more feature according to the pulse waveform that pressure transducer 25 obtains, and extracted feature is used for afterwards alone or in combination measuring arterial sclerosis degree.
Refer to Fig. 6, this is the embodiment three of the application's arterial sclerosis degree determinator.Embodiment three is only with the difference of embodiment two: be connected by two gas conduits 30,30a between cuff 10 and main frame 20.There are in main frame 20 two cover inflation/deflation and measurement components.Outside air bag 15 is connected with first set inflation/deflation and measurement components (pressure transducer 1, air pump 1 and air bleeding valve 1) by gas conduit 1.Inner side air bag 16 is connected with the second cover inflation/deflation and measurement components (pressure transducer two 25a, air pump two 26a and air bleeding valve two 27a) by gas conduit two 30a.Two air pumps 26,26a and two air bleeding valve 27,27a are all controlled by controller 21, and the data of detection are all exported to controller 21 by two pressure transducers 25,25a.
Compared with embodiment two, embodiment three is that two air bags 15,16 are provided with two and overlap independently inflation/deflation and measurement components, thus the air pressure in two air bags 15,16, inflationtime, aeration speed, evacuation time, exhaust velocity can independently be controlled.
Refer to Fig. 7, the process that embodiment three measures arterial sclerosis degree comprises the steps:
Step S71, controller 21 makes air pump 1 work, and is outside air bag 15 fast aeration by gas conduit 1, until the endovascular blood flow of outside air bag 15 interruption artery.Pressure transducer 1 detects the air pressure in the air bag 15 of outside in real time in the process, when terminates to judge and to control inflation.Usually, the pressure of outside air bag 15 must not be greater than 290mmHg.
Step S72, controller 21 makes air bleeding valve 1 work, and be outside air bag 15 slowly aerofluxus by gas conduit 30 1, exhaust velocity is such as 2 ~ 8mmHg/s.Along with outside air bag 15 aerofluxus, arteries recovers blood flow gradually, in the process, and inner side air bag 16 or keep constant gas flow, or also in aerofluxus.Preferably, in the process of the slow aerofluxus of outside air bag 15, inner side air bag 16 keeps roughly the same air pressure with outside air bag 15.Pressure transducer two 25a detects the air pressure in the air bag 16 of inner side in real time, and obtains arterial vascular pulse waveform according to air pressure and the relation of time.
Step S73, the pulse waveform that controller 21 obtains according to pressure transducer two 25a extracts one or more feature, extracted feature is used for afterwards alone or in combination measuring arterial sclerosis degree.
Embodiment two and embodiment three all have employed the cuff of double bolloon.Wherein, outside air bag 15 can adopt existing profile design, repeats no more.Along the A-A section in Fig. 4, the cross sectional shape of inner side air bag 16 can have multiple choices.Refer to Fig. 8, inner side air bag 16 can adopt that two sides is smooth, two sides is protruded, the smooth one side of one side protrudes that (such as, tabular surface presses close to outside air bag 15, and projecting surface presses close to human body; Or on the contrary), (such as, tabular surface presses close to outside air bag 15 to the smooth one side depression of one side, and concave face presses close to human body; Or on the contrary), two sides depression.According to different measuring points, the inner side air bag 16 of different cross section shape can be selected, thus collect pulse waveform the most accurately.For realizing the sunk surface of inner side air bag 16, need certain haulage gear be set therein, otherwise sunk surface still can be protruding when inner side air bag 16 is inflated.Design sunk surface can make inner side air bag 16 more fit the radian of human body and/or outside air bag 15 medial surface, thus is conducive to collecting fainter pulse wave signal.
For the ease of operation, the application's arterial sclerosis degree determinator also can have or the input block such as connecting valve, button, keyboard, mouse, touch screen.For the ease of report measurement result, the application's arterial sclerosis degree determinator also can have or connect the output units such as display screen, touch screen, speech ciphering equipment, printer.
Refer to Fig. 9, this is a kind of charging base, intactly contains the arterial sclerosis degree determinator of the application.This charging base 90 comprises:
---base body 91, comprising the charging circuit for charging from external power supply to electronic equipment 94, for obtaining the discharge circuit of power supply, at least a set of inflation/deflation and measurement components from electronic equipment 94.Base body 91 has a base nest, and in base nest, have a charging inlet, base body 91 also can provide other charging inlets in addition.Base body 91 connects electronic equipment 94 by least one charging inlet, and this charging inlet can be used for transmitting data between electronic equipment 94 simultaneously.Charging inlet is such as USB interface, microUSB interface, miniUSB interface etc.
---cuff accommodation section 92, roll or folding cuff 93 for holding.In the specific implementation shown in Fig. 9, cuff accommodation section 92 is fixed on the rear portion of base body 91 for rack form.Suppose cuff accommodation section 92 peristome of this rack form, middle part, distance from bottom base body 91 distance be respectively a, b, c, then preferably a >=b puts into cuff accommodation section 92 like a cork to make cuff 93, and preferably b≤c is firmly fixed at cuff accommodation section 92 to make cuff 93.Certainly, the cuff accommodation section 92 of rack form also can be fixed on other positions of base body 91.Or in the bottom of base body 91, rear portion equipotential installs a cavity, roll or folding cuff 93 for placing, now this cavity is cuff accommodation section 92.
---cuff 93, wherein has one or two air bag.Be connected by gas conduit between the inflation/deflation of air bag and base body 91 and measurement components.When not using, cuff 93 rollable or folding, is positioned over cuff accommodation section 92.
---electronic equipment 94, is connected with base body 91 with charging inlet.Electronic equipment 94 is such as mobile phone, panel computer, remote controller, playing audio/video, video display camera-shooting and recording device etc., needs to have control chip, at least one input block (such as button, touch screen), at least one output unit (such as display screen, touch screen, speaker).The control chip of electronic equipment 94 inside can as the controller of main frame in arterial sclerosis degree determinator, and it extracts one or more feature according to the pulse waveform that pressure transducer obtains and is used for alone or in combination measuring arterial sclerosis degree.The input block of electronic equipment 94 is for controlling arterial sclerosis degree determinator.The output unit of electronic equipment 94 is for reporting the measurement result of arterial sclerosis degree.
Charging base shown in Fig. 9 in use, if base body 91 is connected with external power supply, then with external power supply on the one hand by charging circuit for the charging of electronic equipment 94 built-in power, be the power supply such as inflation/deflation in base body 91 and measurement components on the other hand.If base body 91 does not connect external power supply but connect electronic equipment 94, then with electronic equipment 94 built-in power by the discharge circuit in base body 91 for the power supply such as inflation/deflation and measurement components.
For measuring arterial sclerosis degree, electronic equipment 94 or be built-in with the function that measures arterial sclerosis degree or provide operating system and allow user to install app (application program) voluntarily.The app of these build-in functions or installation contains the software algorithm measured needed for arterial sclerosis degree.User assigns measurement instruction by the input block such as button, touch screen of electronic equipment 94.The control chip of electronic equipment 94 assigns instruction to the inflation/deflation in base body 91 and measurement components, is the airbag aeration venting in cuff 93, gathers arterial vascular pulse waveform simultaneously.The control chip of electronic equipment 94 extracts feature to be used for measuring arterial sclerosis degree from this pulse waveform.The output unit report measurement results such as display screen, speaker of electronic equipment 94.
If measure arterial sclerosis degree with single equipment, control chip, input block, output unit, inflation/deflation and measurement components, battery, transforming circuit etc. are essential.Charging base shown in Fig. 9 keep original be electronic equipment charge function basis on, discharge circuit (comprising transforming circuit), inflation/deflation and measurement components is added in base body, make use of the control chip of electronic equipment internal, input block, output unit in addition, thus achieve the arterial sclerosis degree mensuration scheme of low cost with two equipment combining forms.
After the application's arterial sclerosis degree determinator collects pulse waveform by measurement, therefrom extract feature and comprise single wave character, multiple wave character, blood pressure characteristics etc., and these features are used for alone or in combination afterwards measure arterial sclerosis degree.
One of feature that the application extracts is main wave-amplitude rate of change VAc.
wherein VAc (SBP) represents with the main wave-amplitude of pulse wave corresponding to the time point of oscillographic method measurement systolic pressure, VAc (MAP) represents that, with the main wave-amplitude of pulse wave corresponding to the time point of oscillographic method measurement mean arterial pressure, VAc (DBP) represents with the main wave-amplitude of pulse wave corresponding to the time point of oscillographic method measurement diastolic pressure.Main wave-amplitude determined by artery diameter and blood vessel elasticity.When arterial blood tube wall elasticity is less, main wave-amplitude is also less.But the impact that artery diameter is subject to the factors such as different building shape, sex, age is comparatively large, and tremulous pulse amplitude change rate VAc can evade these impacts.Main wave-amplitude rate of change VAc is less, shows that arterial sclerosis degree is larger.
Refer to Figure 10, this is the waveform schematic diagram of human pulse ripple, and transverse axis is the time, and the longitudinal axis is amplitude, represents arteries pressure.A complete pulse wave cycle bh is made up of ascending branch bc and descending branch ch two parts.Ascending branch bc corresponds to the phase of maximum ejection of left ventricle, due to left ventricle, a large amount of blood is injected aorta fast and makes blood pressure increase fast.Descending branch ch corresponds to the slow ejection period of left ventricle and whole relaxing period.The peak c of whole pulse wave cycle is exactly the crest of main ripple.In the slow ejection period of left ventricle, while blood flows to arterial distal, by various factors effect, part is backflowed, and impacts blood vessel wall and defines tidal wave (crest is e point), prewave of fighting of also weighing.In the moment of aortic valve closing, pulse wave forms dicrotic notch (trough is f point).The systole of left ventricle and relaxing period are just demarcate with dicrotic notch.At the relaxing period of left ventricle, due to aortic valve closing, the blood backflowed makes aortic root volume increase, and again flows to arterial distal by aortal vessel wall elasticity contraction, impacts blood vessel wall and defines dicrotic wave (crest is g point).Main wave-amplitude refers to the difference of the amplitude of main wave-wave peak c point in a pulse wave cycle and the amplitude of this pulse wave cycle initial time b point.
In a complete pulse wave cycle, the maximal pressure that blood produces aortal blood vessel wall, minimal pressure are called systolic pressure (SBP), diastolic pressure (SBP).Electric sphygmomanometer adopts oscillographic method (oscillometric) Measure blood pressure usually, needs the pulse wave signal gathering multiple cycle.Refer to Figure 11, the principle of oscillographic method Measure blood pressure is as follows: by cuff around binding arm one week, first to cuff inflation with the endovascular blood flow of interruption artery, then to cuff deflation.When cuff pressure is reduced to certain value, restoration of blood flow is by arteries, and pressure transducer starts faint pulse wave signal to be detected, as shown in the high order end of Figure 11.Along with cuff continues venting, the pulse wave signal amplitude that pressure transducer detects is increasing.Continue cuff deflation, then because the contact of cuff and arm fluffs, the pulse wave signal amplitude that pressure transducer detects starts to diminish.Using the cuff pressure value of some correspondence maximum for pulse wave signal amplitude as mean arterial pressure (MAP), before mean arterial pressure and amplitude is pulse wave signal peak swing a doubly (0<a<1, such as a gets 0.45) the cuff pressure value of some correspondence as systolic pressure, such as, after mean arterial pressure and amplitude is that the cuff pressure value of the pulse wave signal peak swing b doubly some correspondence of (0<b<1, b gets 0.75) is as diastolic pressure.
Two of the feature that the application extracts is tidal wave time of occurrence rate VTce.VTce=(Tc-Te) × RHR, wherein Tc represents the time point that main wave-wave peak c point occurs, Te represents the time point that tidal wave crest e point occurs, RHR represents resting heart rate (restheartrate).The while that tidal wave crest e blood flowing to arterial distal, by various factors effect, part is backflowed and is produced.When arterial blood tube wall elasticity is less, the time of occurrence of tidal wave crest e can be caused comparatively early even to merge with main wave-wave peak c and disappear.The time of occurrence difference of tidal wave crest e and main wave-wave peak c can reflect the arterial sclerosis degree of single individuality, and tidal wave time of occurrence rate VTce just balances the difference between Different Individual.Rate VTce is less for tidal wave time of occurrence, shows that arterial sclerosis degree is larger.
Three of the feature that the application extracts is tidal wave amplitude change rate VAce.
wherein Ac represents the amplitude of main wave-wave peak c point, and Ae represents the amplitude of tidal wave crest e point.Partly backflow by various factors effect while that tidal wave crest e relying on blood to flow to arterial distal and produce.When arterial blood tube wall elasticity is less, the amplitude of tidal wave crest e can be caused to reduce even merge with main wave-wave peak c and disappear.The difference of the amplitude of main wave-wave peak c and tidal wave crest e can reflect the arterial sclerosis degree of single individuality, and tidal wave amplitude change rate VAce just balances the difference between Different Individual.VAce is less for tidal wave amplitude change rate, shows that arterial sclerosis degree is larger.
Four of the feature that the application extracts is dicrotic wave time of occurrence rate VTgc.VTgc=(Tg-Tc) × RHR, wherein Tg represents the time point that dicrotic wave crest g point occurs.Dicrotic wave crest g also relies on the elastical retraction of arterial blood tube wall to produce.When arterial blood tube wall elasticity is less, the time of occurrence of dicrotic wave crest g can be caused comparatively early even to merge with main wave-wave peak c and disappear.The time of occurrence difference of dicrotic wave crest g and main wave-wave peak c can reflect the arterial sclerosis degree of single individuality, and dicrotic wave time of occurrence rate VTgc just balances the difference between Different Individual.Rate VTgc is less for dicrotic wave time of occurrence, shows that arterial sclerosis degree is larger.
Five of the feature that the application extracts is dicrotic wave amplitude change rate VAgf.
wherein Af represents the amplitude of dicrotic notch trough f point, and Ag represents the amplitude of dicrotic wave crest g point.Dicrotic wave crest g also relies on the elastical retraction of arterial blood tube wall to produce.When arterial blood tube wall elasticity is less, the difference of the amplitude of dicrotic wave crest g and dicrotic notch trough f can be caused to diminish and even to make dicrotic notch trough f disappear.The difference of the amplitude of dicrotic wave crest g and dicrotic notch trough f can reflect the arterial sclerosis degree of single individuality, and dicrotic wave amplitude change rate VAgf just balances the difference between Different Individual.VAgf is less for dicrotic wave amplitude change rate, shows that arterial sclerosis degree is larger.
Six of the feature that the application extracts is average upstroke slopes
upstroke slope Vbc is defined as
wherein, Ab represents the amplitude of the starting point b point of a complete pulse waveform, and Tb represents the moment that the starting point b point of a complete pulse waveform occurs.Upstroke slope Vbc can reflect that arterial blood tube wall is deformed to the speed of maximum caliber under the compressing of a large amount of blood.When arterial blood tube wall elasticity is less, raised the pressure in arteries instantaneously by a large amount of blood that ventricle exports, therefore upstroke slope Vbc can increase.For the degree of accuracy increasing data can calculate average upstroke slope
this refer to oscillographic method measure systolic pressure time point to oscillographic method measurement diastolic pressure time point between, the meansigma methods of the upstroke slope Vbc of all pulse waveforms.Average upstroke slope
larger, show that arterial sclerosis degree is larger.
Seven of the feature that the application extracts is blood pressure age coefficient C.C=θ 1 × (P (SBP)+P (DBP))+θ 2 × AGE, wherein θ 1 and θ 2 represents coefficient, 0 < θ 1 < 1,0 < θ 2 < 1, θ 1+ θ 2=1, the value of the systolic pressure that P (SBP) expression obtains with oscillographic method measurement, the value of the diastolic pressure that P (DBP) expression obtains with oscillographic method measurement, AGE represents the age.When arterial blood tube wall elasticity is less, a large amount of blood that ventricle exports impact when lacking elastic arterial blood tube wall can the rising suddenly of build-up of pressure, shows as systolic pressure and diastolic pressure is higher.In addition, between age and arterial sclerosis degree, often there is positively related relation.Blood pressure age coefficient C is larger, shows that arterial sclerosis degree is larger.
Eight of the feature that the application extracts is time difference Δ t.
wherein Tdbp represents the time point measuring diastolic pressure with oscillographic method, and now arteries reaches the full-gear of maximum gauge.Tsbp represents the time point measuring systolic pressure with oscillographic method, and now arteries is in the turning point being turned to unlatching by blocked state.V represents unique air bag of monosaccate cuff or the exhaust velocity of outside air bag in slow exhaust process of double bolloon cuff.Time difference Δ t represents arteries time used from obturation to standard-sized sheet.When arteries elasticity is less, the time used from obturation to standard-sized sheet is also less.T is less for time difference Δ, shows that arterial sclerosis degree is larger.
Nine of the feature that the application extracts is artery stiffness index f.
wherein Tmap represents the time point measuring mean arterial pressure with oscillographic method.
represent the ability of arteries from obturation to quiescent condition,
represent the ability of arteries from tranquillization to full-gear.These two parameters are larger, and the speed that expression arteries reaches maximum gauge is faster, and reflection arterial blood tube wall elasticity is larger.Artery stiffness index f is larger, shows that arterial sclerosis degree is less.
Above-mentioned nine are extracted in features, second and third, four, five only analyze with a pulse waveform, easily cause error larger.The first, six, eight, nine is analyze with the multiple pulse waveform of continuous print, and precision is higher.
These are only the preferred embodiment of the application, and be not used in restriction the application.For a person skilled in the art, the application can have various modifications and variations.Within all spirit in the application and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the application.
Claims (13)
1. an arterial sclerosis degree determinator, is characterized in that, comprises the cuff and main frame that are connected by gas conduit; There is in cuff one or two air bag; There are in main frame a controller and a set of or two cover inflation/deflation and measurement components; Often cover inflation/deflation and measurement components comprise a pressure transducer, an air pump and an air bleeding valve; Controller extracts one or more feature according to the pulse waveform that pressure transducer obtains and is used for alone or in combination measuring arterial sclerosis degree.
2. arterial sclerosis degree determinator according to claim 1, is characterized in that, only has an air bag in cuff; A set of inflation/deflation and measurement components is only had, for the unique airbag aeration in cuff, venting, measurement air pressure in main frame;
Or, there are in cuff two air bags; There is a set of inflation/deflation and measurement components, for inflating the air bag of two in cuff, exit, measure air pressure simultaneously in main frame;
Or, there are in cuff two air bags; There are two cover inflation/deflation and measurement components, for inflating independently the air bag of two in cuff, exit, measure air pressure in main frame.
3. arterial sclerosis degree determinator according to claim 2, it is characterized in that, when having two air bags in cuff, these two air bags are along the arranged radially of arteries direction, arteries pressed close to by inner side air bag, and outside balloon encompass is in the outside of inner side air bag.
4. arterial sclerosis degree determinator according to claim 3, is characterized in that, when having two air bags in cuff, the size of inner side air bag is less than the size of outside air bag; The size of inner side air bag meets covering arteries width, and the size of outside air bag meets the measuring point roughly surrounding human body.
5. arterial sclerosis degree determinator according to claim 3, is characterized in that, inner side air bag is arranged on the distal end of outside air bag.
6. arterial sclerosis degree determinator according to claim 3, it is characterized in that, when there are in cuff two air bags and there is in main frame two cover inflation/deflations and measurement components, inner side air bag or keep constant gas flow in the air bags process of outside, or also in aerofluxus.
7. arterial sclerosis degree determinator according to claim 6, is characterized in that, in the air bags process of outside, inner side air bag keeps roughly the same air pressure with outside air bag.
8. arterial sclerosis degree determinator according to claim 3, it is characterized in that, when having two air bags in cuff, the cross sectional shape of inner side air bag is that two sides is smooth, two sides is protruded, the smooth one side of one side is protruded, one of the smooth one side depression of one side, two sides depression.
9. arterial sclerosis degree determinator according to claim 1, is characterized in that, also has or connects input block and output unit;
It is one or more that input block comprises in switch, button, keyboard, mouse, touch screen;
It is one or more that output unit comprises in display screen, touch screen, speech ciphering equipment, printer.
10. comprise a charging base for the arterial sclerosis degree determinator as described in claim 1 ~ 9 any one, it is characterized in that, comprising:
---base body, comprising the charging circuit charged from external power supply to electronic equipment, the discharge circuit obtaining power supply from electronic equipment, at least a set of inflation/deflation and measurement components; Base body connects electronic equipment by least one charging inlet, and this charging inlet is simultaneously for transmitting data between electronic equipment;
---cuff accommodation section, roll or folding cuff for holding;
---cuff, wherein has one or two air bag; Be connected by gas conduit between the inflation/deflation of air bag and base body and measurement components;
---electronic equipment, is connected with base body with charging inlet; Electronic equipment has control chip, at least one input block, at least one output unit; The control chip of electronic equipment internal is as the controller of main frame in arterial sclerosis degree determinator; The input block of electronic equipment is for controlling arterial sclerosis degree determinator; The output unit of electronic equipment is for reporting the measurement result of arterial sclerosis degree.
11. charging bases according to claim 10, is characterized in that, when base body is connected with external power supply, then with external power supply on the one hand by charging circuit for electronic equipment charges, on the other hand for base body is powered;
When base body do not connect external power supply but connect electronic equipment, then with electronic equipment by discharge circuit for base body is powered.
12. charging bases according to claim 10, is characterized in that, described cuff accommodation section is that rack form is fixed on base body;
Or establish a cavity to roll or folding cuff for placing in base body, then this cavity is cuff accommodation section.
13. charging bases according to claim 12, is characterized in that, described cuff accommodation section is rack form, and the distance of the cuff accommodation section peristome of this rack form, middle part, distance from bottom base body is respectively a, b, c, then a >=b, b≤c.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105286817A (en) * | 2015-11-23 | 2016-02-03 | 恬家（上海）信息科技有限公司 | Arteriosclerosis degree determinator and charging base |
| CN113143234A (en) * | 2021-04-13 | 2021-07-23 | 研和智能科技(杭州)有限公司 | Blood pressure measuring device and control method |
-
2015
- 2015-11-23 CN CN201520943104.6U patent/CN205144533U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105286817A (en) * | 2015-11-23 | 2016-02-03 | 恬家（上海）信息科技有限公司 | Arteriosclerosis degree determinator and charging base |
| CN113143234A (en) * | 2021-04-13 | 2021-07-23 | 研和智能科技(杭州)有限公司 | Blood pressure measuring device and control method |
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