CN201267466Y - Arteriosclerosis detector - Google Patents
Arteriosclerosis detector Download PDFInfo
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- CN201267466Y CN201267466Y CNU2008201186154U CN200820118615U CN201267466Y CN 201267466 Y CN201267466 Y CN 201267466Y CN U2008201186154 U CNU2008201186154 U CN U2008201186154U CN 200820118615 U CN200820118615 U CN 200820118615U CN 201267466 Y CN201267466 Y CN 201267466Y
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- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The utility model relates to an instrument based on pulse transmitting speed and pulse waveform theory which comprises the host box of an arteriosclerosis surveymeter, four sets of sleeve straps and rubber canals, two sensors for detecting electrocardio, leads an auxiliary wrist clips, a sensor for detecting a heart sound signal, a microcomputer and a printer; the utility model is characterized in that the electrocardio sensors and the heart sound sensors are respectively connected with the pre-processing modules of each own, then the pre-processing modules are connected with the primary filter modules of each own and respectively connected with a singlechip finally; the singlechip is also connected with a blood pressure signal amplifying module and the microcomputer; and the blood pressure signal amplifying module is connected with a blood pressure sensor. The utility model reduces the cost of hardware, shortens the size, reduces the cost, can be used in hospitals, communities, and household environments, has friendly software interfaces, is simple to be operated, has multiple functions, and can store a diagnosis report under the situation without the printer.
Description
Technical field
This utility model relates to electrical category, particularly relate to a kind of instrument or system based on pulse transmission speed and pulse wave theory, it is by facing upward the time and the analysis pulse waveform of putting down crouch human limb region of interest or appointed part placement sensor measurement pulse transmission arbitrarily, brachium conjunctivum ankle blood pressure index is judged the obstruction of artery situation and is utilized the measurement parameter of heart sound transducer to carry out the evaluation of human body artery spring level, meanwhile calculates the systolic pressure of extremity, diastolic pressure, mean pressure, pulse pressure, heart rate, waveform rise time, pulse wave volume record, ecg wave form, the hear sounds waveform, systolic time interval etc.
Background technology
In recent years, along with the deep understanding of the mankind to the native blood vessel pathological changes, everybody recognize gradually the blood vessel wall pathological changes with and develop due to the tube chamber pathological changes be only the immediate cause of multiple cardiovascular complications such as myocardial infarction, apoplexy.Have only by vascular lesion being carried out earlier detection, early discovery and intervention rationally and could fundamentally reduce it and disable and fatality rate.Cardiovascular disease is the pathological changes of involving whole body, and therefore, the whole vascular lesion of intervening is only the essential measure that reduces various cardiovascular events and improve patient's long-term prognosis.Arterial elasticity is reduced and stiffness index increases the deep understanding and the earlier detection arterial elasticity situation of this subclinical vascular lesion, help us to take active and effective preventive measure as early as possible, improve dietary structure, in time adjust life style, auxiliary having more targetedly medicine and to detect, estimate its therapeutic effect, thus cardiovascular diseases's M ﹠ M controlled effectively.
The inspection of tradition arterial disease mainly is to adopt angiography and two kinds of methods of intravascular ultrasound.But these two kinds of methods all are the diagnosis to patient ill mid-term, late period, and be that traumatic inspection is arranged, expense height not only, and certain danger arranged, be not suitable for conventional examination, therefore arteriosclerotic no wound earlier detection, early diagnosis, early stage control become the theme of contemporary medical science science and education and social development, also are the important topics that society proposes to the medical research personnel.
Heart disease is to cause invalid and dead main flow disease, in developed country, cardiovascular system diseases has become the most common disease and lethal major reason, and along with the development trend of China's aged tendency of population, the ratio of cardiovascular disease is also high year by year.At present, cardiovascular diagnosis mainly relies on medical apparatus and instruments except clinical.Electrocardio and hear sounds are two kinds of different means that detect cardiovascular disease, and electrocardio is mainly used in the analyzing and diagnosing of qualitative and quantitative of arrhythmia and myocardial ischemia and the curative effect of check cardiovascular drugs.Phonocardiogram can effectively remedy the deficiency of cardiac auscultation, and cardiechema signals that cardiac auscultation can not be write down or the signal that is not easy to differentiate are noted with the form of data, figure, analyze use for the doctor.Phonocardiogram is in conjunction with electrocardiogram, can effectively improve the discriminating and the diagnostic level of cardiovascular disease,, determine therapeutic scheme for the analysis cardiovascular function, the mechanism of judging pathology and studying some disease all provides of great value scientific basis, and its application is increasingly extensive.
Blood pressure is the pressure that blood produces blood vessel wall when flowing in blood vessel, as the physiological parameter that body weight for humans is wanted, blood pressure can reflect the function status of human heart and blood vessel, thereby becomes clinically and diagnose the illness, observe therapeutic effect, carry out the more important evidence of back recovery judgement of disease.Along with people to physiology signal feature understanding deepen continuously and a large amount of new technique is applied to biomedical engineering field, the scientist has proposed to utilize the method for pulse wave characteristic parameters continuous blood pressure measuring.Along with the intermittence of heart is shunk and diastole, blood stream pressure, the pulsation of blood flow rate and blood flow and the distortion of blood vessel wall and the propagation of vibration in vascular system are referred to as the propagation in blood vessel of pulse wave or pulse wave.Information such as the form that pulse wave presents, intensity, speed and the rhythm and pace of moving things reflect the flow characteristic of many physiology and pathology in the cardiovascular system of human body to a great extent.Pulse wave is a kind of physiological signal based on low-frequency component, can pass through the body surface tremulous pulse, locates to be detected as carotid artery, brachial artery and radial artery etc.
Pulse passing time PTT (Pulse Transmit Time) is meant that arterial pulse begins to pass to time difference between a certain bifurcated artery blood vessel from heart contraction.This method is based on the principle that has certain functional relationship between the transmission speed of pipe network internal pressure in the hydrodynamics and each point pressure, systolic pressure and pulse passing time are set up one group of dependency number mathematic(al) function, calculate systolic pressure in view of the above, and further estimate mean pressure and diastolic pressure.
Pulse wave velocity PWV (Pulse Wave Velocity) is obtained by the pulse wave propagate Time Calculation usually.Starting end (subclavian artery) and end end (femoral artery) at tremulous pulse detect pulse, can calculate two time differences between the signal, known aortal length (with the distance estimations between suprasternal notch and the groin) can calculate aortic pulse wave speed.In general, hypertension, pulse increases along the spread speed of tremulous pulse.After detecting relevant pulse waveform, proofreaied and correct and to be obtained absolute, successive blood pressure measurement.
Can press down blood vessel by the pressure detecting probe is placed the most obvious place of arterial pulse to the measurement of pulse wave, when artery surface is driven plain, circumferentially just being balanced of tube wall, the pressure that probe is remembered is exactly real intra-arterial pressure.Calculate systolic pressure and diastolic pressure by pulse wave translation time.The full-automatic survey meter of blood pressure of BP-50 type that Britain produces has just adopted this principle.Concrete grammar is: utilize the peak value of ecg-r wave to be starting point, the measure R ripple triggers the back pulse wave and is transmitted to the required time of finger tips, utilizes the systolic pressure set up and the regression equation of diastolic pressure again, and conduction time is scaled systolic pressure and diastolic pressure.
Theoretically, as long as the relation of pulse wave and cardiovascular blood flow rule well is familiar with and is solved, utilizing the pulse wave method to detect diagnosis human vas hemodynamic parameter is more appropriate best approach in other words conj.or perhaps.Arteriosclerosis is systemic disease, when the patient reduces because of angiostenosis or obstruction cause pulse wave velocity, even tremulous pulse has suitable hardenability, the numerical value of PWV (pulse wave conduction speed) might still be acted normally, have only in conjunction with ABI and carry out comprehensive assessment, just can accurately check out the patient of multiple vascular lesion.
ABI (ankle upper arm blood pressure ratio) is an index of judging that the artery of lower extremity that is caused by medicated porridge sample arteriosclerosis is narrow, block.By the blood pressure of synchro measure extremity, again by the ankle systolic pressure divided by value higher in the upper arm systolic pressure, obtain a result.According to ABI, can judge narrow, the congestion situations of artery of lower extremity.Diagnosis and postoperative observation for obstructive arteriosclerosis (ASO) are proper.In addition, by observing left and right sides upper arm blood pressure difference, can detect the abnormal conditions of artery of upper extremity such as large artery trunks inflammation and subclavian artery be narrow.
ABI is commonly used as the index of diagnosis obstructive arteriosclerosis (ASO), and its criterion was formulated by AHA (american heart association) in 1993:
0.9＜ABI＜1.3 are normal
There is the probability of obstruction of artery ABI≤0.9
The probability of ABI≤0.8 obstruction of artery is high
0.5≤ABI＜0.8 has place's obstruction of artery at least
ABI＜0.5 has many places to have obstruction of artery
There is the doubtful of angiosteosis ABI 〉=1.3
Tranquillization ABI value is in critical point and with the patient of intermittent claudication, the stress test of can taking exercises is so that further make a definite diagnosis.
The utility model content
This utility model is a kind of arteriosclerotic electronic system that is used to detect, it comprises EGC sensor, the electrocardio pretreatment module, the elementary filtration module of electrocardio, A/D modular converter under the Single-chip Controlling, heart sound transducer, the hear sounds pretreatment module, the elementary filtration module of hear sounds, pressure transducer, the blood pressure signal amplification module, it is characterized in that EGC sensor and heart sound transducer are connected pretreatment module separately respectively, pretreatment module connects elementary filtration module separately more then, connect single-chip microcomputer at last separately, described single-chip microcomputer also is connected with blood pressure signal amplification module and microcomputer, and the blood pressure signal amplification module connects pressure transducer.EGC sensor uses the wrist clamping to fix on wrist, is used to gather electrocardiosignal; The electrocardio pretreatment module is connected with EGC sensor, and the faint electrocardiosignal that this module will collect is amplified; The elementary filtration module of electrocardio links to each other with the electrocardio pretreatment module, to filter the noise of electrocardiosignal; A/D modular converter under the Single-chip Controlling becomes digital signal with the ECG simulator conversion of signals; Heart sound transducer is placed on the outer apex position of thorax, is used to gather cardiechema signals; The hear sounds pretreatment module is connected with heart sound transducer, and the hear sounds pretreatment module is amplified the initial cardiechema signals that is collected; The elementary filtration module of hear sounds links to each other with the hear sounds pretreatment module, in order to filter the noise of cardiechema signals; Single-chip Controlling A/D modular converter becomes digital signal with the hear sounds analog signal conversion; Pressure transducer at first is fixed on cuff extremity appointed part or any part, by rubber catheter air pressure pressure is sent to pick off, so that gather blood pressure signal, pulse transmission speed and pulse waveform; The blood pressure signal amplification module is connected with pressure transducer, and the blood pressure signal amplification module amplifies the blood pressure signal that is collected; Single-chip microcomputer is done data acquisition to blood pressure signal, above-mentioned multichannel unlike signal is input to microcomputer simultaneously, the accompanying software of atherosclerosis detector will calculate time difference and the ankle upper arm blood pressure ratio between electrocardiosignal and the blood pressure signal, in conjunction with cardiechema signals, by analyzing pulse waveform, judge that accurately the arteriosclerosis degree calculates the systolic pressure of extremity, diastolic pressure, mean pressure, pulse pressure, heart rate, waveform rise time, pulse wave volume record, ecg wave form, hear sounds waveform, systolic time interval etc. simultaneously.Computer software can also carry out content and statistical procedures such as identification, collection height, body weight, age and gender data, storage personal illness history, test tracking except having above-mentioned functions.
The viewable portion of described atherosclerosis detector comprises an atherosclerosis detector host box, quadruplet cuff and rubber conduit, two are detected cardiac electrical pick off and wrist folder, a pick off that detects cardiechema signals, a microcomputer and a printer, feature is to use common non-special microcomputer and printer, and the collection of data signal, secondary filtering noise reduction and data computation all realize by the software that is installed on the microcomputer.
Pressure transducer can be placed on the location detection part of any known arteries length and know the blood vessel elasticity situation of whole body by inference.With other design philosophy or shaped article different wherein be, this utility model is considered the popularity of microcomputer and its versatility, most of function of atherosclerosis detector being transferred to the software of microcomputer realizes, dwindled the volume of atherosclerosis detector, reduced cost, it can be used at hospital, community and domestic environment.The software interface close friend, simple to operate, diverse in function in the absence of printer, can be stored diagnosis report, connects printer and can print exquisite diagnostic result.
Description of drawings
Fig. 1 atherosclerosis detector structural representation
1-1 atherosclerosis detector 1-2 EGC sensor 1-3 cuff 1-4 heart sound transducer 1-5 microcomputer 1-6 networking component 1-7 printer
The fixed position of Fig. 2 detected person cuff
A1, A2, A3, A4 are the fixed positions of cuff
Fig. 3 EGC sensor and wrist folder
3-1 pick off 3-2 lead
The specific embodiment
Further specify the working condition of atherosclerosis detector below in conjunction with legend, as shown in Figure 1, be connected by USB interface between atherosclerosis detector and the microcomputer, then heart sound transducer is connected with the host box of atherosclerosis detector by special wire with EGC sensor, microcomputer can select to connect the local printer and the network printer, and the data of surveying provide network retrieval.The detected person gets and faces upward flat prone position gesture, uncovers and is examined the position.Under the system boot state, heart sound transducer is placed on the outer apex position of thorax, and pushes down with light sandbag.As shown in Figure 2, two cufves are fixed on upper arm place, the left and right sides, and two cufves are fixed on ankle place, the left and right sides in addition.Pressure transducer is positioned at host box, links to each other with cuff by the inducing QI sebific duct, and pressure transducer changes cuff air pressure into the corresponding signal of telecommunication.EGC sensor is fixed on wrist portion with the wrist clamping, and sensor site is adjacent to the skin of having smeared water or conductive paste as shown in Figure 3.Before beginning to detect, the detected person need do several times and deeply breathe, and it is even-tempered and good-humoured to accomplish, eupnea.When beginning to detect, inflator pump is given four cuff inflations, about 10 seconds, equipment automatically identifies detected person's the highest systolic pressure, stops inflation behind the pressure that appends 10～20mmHg on the basis of the highest systolic pressure that dopes again, venting then, like this, the detected person does not have uncomfortable sensation, and through sensor acquisition signal, transmission, amplification, filtering, analog digital conversion and data analysis, testing in about 3～5 minutes is all over.The data of storing can at any time be called out and carry out examining report printing or data retrieval, also can carry out teledata by networking component and share.
Claims (3)
1. atherosclerosis detector, it comprises EGC sensor, the electrocardio pretreatment module, the elementary filtration module of electrocardio, A/D modular converter under the Single-chip Controlling, heart sound transducer, the hear sounds pretreatment module, the elementary filtration module of hear sounds, pressure transducer, the blood pressure signal amplification module, it is characterized in that EGC sensor and heart sound transducer are connected pretreatment module separately respectively, pretreatment module connects elementary filtration module separately more then, connect single-chip microcomputer at last separately, described single-chip microcomputer also is connected with blood pressure signal amplification module and microcomputer, and the blood pressure signal amplification module connects pressure transducer.
2. according to the described atherosclerosis detector of claim 1, it is characterized in that an atherosclerosis detector host box connects the quadruplet cuff by the rubber conduit, connect two by lead and detect cardiac electrical pick off, connect a pick off that detects cardiechema signals by lead, and connect a microcomputer and a printer.
3. according to the described atherosclerosis detector of claim 2, its feature is to use common non-special microcomputer and printer, and the collection of data signal, secondary filtering noise reduction and data computation all realize by the software that is installed on the microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201186154U CN201267466Y (en) | 2008-05-29 | 2008-05-29 | Arteriosclerosis detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201186154U CN201267466Y (en) | 2008-05-29 | 2008-05-29 | Arteriosclerosis detector |
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| CN201267466Y true CN201267466Y (en) | 2009-07-08 |
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| CNU2008201186154U Expired - Fee Related CN201267466Y (en) | 2008-05-29 | 2008-05-29 | Arteriosclerosis detector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512147A (en) * | 2011-12-27 | 2012-06-27 | 王培勇 | Non-destructive detector for human arteriosclerosis |
| CN103055416A (en) * | 2012-12-31 | 2013-04-24 | 常熟柏宇医疗电子有限公司 | Electronic anti-emesis instrument |
| CN107802257A (en) * | 2017-12-04 | 2018-03-16 | 山东朱氏药业集团有限公司 | A kind of new artery sclerosis analyzer |
-
2008
- 2008-05-29 CN CNU2008201186154U patent/CN201267466Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512147A (en) * | 2011-12-27 | 2012-06-27 | 王培勇 | Non-destructive detector for human arteriosclerosis |
| CN103055416A (en) * | 2012-12-31 | 2013-04-24 | 常熟柏宇医疗电子有限公司 | Electronic anti-emesis instrument |
| CN107802257A (en) * | 2017-12-04 | 2018-03-16 | 山东朱氏药业集团有限公司 | A kind of new artery sclerosis analyzer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20110529 |