CN1236597A - Automatic analysis system for remote-measuring dynamic cardiac function and method for measuring dynamic cardiac kinetic energy. - Google Patents
Automatic analysis system for remote-measuring dynamic cardiac function and method for measuring dynamic cardiac kinetic energy. Download PDFInfo
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- CN1236597A CN1236597A CN 99103320 CN99103320A CN1236597A CN 1236597 A CN1236597 A CN 1236597A CN 99103320 CN99103320 CN 99103320 CN 99103320 A CN99103320 A CN 99103320A CN 1236597 A CN1236597 A CN 1236597A
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Abstract
An automatic analysis system for remote-measuring the dynamic cardiac function is composed of a transmitter unit consisting of signal acquiring device, amplifier, A/D converter, frequency-shift keying modulator, and transmitter, and a receiver unit consisting of FM receiver, digital demodulator, data processor and record output device. Said transmitter unit may have several channels. for measuring dynamic cardiac function, measuring ECG and PCG can directly examine PEP/LUET, with the advantages of simple method, clear test point and high repeatability. It can be used for early and auxiliary diagnosis of some diseases, result prediction and analysis and the evaluation of therapeutic and medicine effects.
Description
The present invention relates to a kind of to be diagnosed as the purpose measuring device, relating in particular to the dynamic cardiac function of a kind of remote metering also can analyze automatically, for example: whether be anginal measurement analysis device, it be according to the variation of interval heart contraction time and little electricity computer technology comprehensively be the noinvasive remote control detecting instrument of one.
Heart disease is common a kind of disease, and its mortality rate ratio is bigger, and the quality of cardiac function is the important symbol of reflection heart disease weight, and heart attack suddenly and acutely.And the diagnosis of existing cardiac monitoring mostly is the bedside of single-signal remote measurement or multi-lead and checks monitor, as the DS880 Houlter of Japan etc.Owing to exist signal single, telemeter distance is near, and detection range is little, can only be used for ARR monitoring and observation are difficult to implement diagnosis, the analysis to a plurality of patients, a plurality of signal, multiple function simultaneously and observe.Though at recently existing multi-functional (blood pressure, pulse, blood oxygen, heart rate, breathe) wired bedside monitoring, but the detection of cardiac function still relies on the principle of impedance with electrocardiogram, phonocardiogram, the polygraph that quiet arterial tracing and apexcardiography detect, as Siemens Mingo grat physiograph, its instrument heaviness, the price eighteenth of the twenty is expensive, the measuring method complexity, detecting data is subjected to the external interference factor too many, and can't detect angina pectoris, at any time the record of each parameter such as QTC JTC in interval heart contraction time (PEP LVET) and the electrocardiogram is observed and diagnosis.
The object of the invention is: develop that a kind of volume is little, power consumption is little, transmission of two-way signal and harvester and make its randomness strong, systolic time interval in the time of detecting cardiac function and angina pectoris randomly and change, and can use discharger that electrocardiogram, phonocardiogram are launched simultaneously, receiving system is in time demonstrated, harmless to human body, cardiac function to the patient of coronary heart disease, angina pectoris and cardiac insufficiency can dynamically be observed continuously, and record is printed and analyzed.Also can be to early stage or some disease of auxiliary diagnosis, with the analysis that makes an estimate, and estimate various Therapeutic Method and the special curative effect index of medicine and understand human body the influence of various different conditions and extraneous factor to ventricular systolic function.
Another purpose of the present invention is studied and is a kind ofly used for a plurality of patients simultaneously, and can reduce external interference, the dynamic cardiac function automatic analysis system of a kind of remote measurement.On method of testing, make that measurement point is clear, repeatability is strong, resolving power is strong, convenient and simple.
The present invention is achieved in that native system is made up of discharger and receiving system.Discharger is to be connected to form by signal picker, amplifier, A/D converter, frequency shift keying manipulator, transmitter successively, and transmitter is connected to form by amplifier, oscillating circuit, frequency multiplier circuit, power amplifier successively.Receiving system is connected to form by fremodyne, digital demodulator, data processor, recording/output apparatus successively.Discharger can be made up of several, the frequency difference of each road emission, and receiving system comes out each road demodulation to show on the display screen in recording/output apparatus respectively according to different frequencies respectively.
Survey dynamic heart merit method for only thought-read electrograph ECG and sound figure PCG just can directly be checked out cardiac function contraction time ratio PEP/LVET.
The present invention compares with prior art, and the beneficial effect that has is:
1, the present invention can reflect changes of cardiac function in good time, easy, responsive, accurately, can carry out continuously dynamic observation, record to critical patient's cardiac function, print and analyze.
2, can be in early days or some disease of auxiliary diagnosis and give after the estimation analysis, change and Changing Pattern as coronary disease patient contraction time ratio PEP/LVET, degree that decidable coronary heart disease gets clogged and angina pectoris patient's the order of severity, the leakage that prevents coronary heart disease controls, fail to pinpoint a disease in diagnosis the appearance with the wrong treatment phenomenon, if patient with angina pectoris contraction time ratio PEP/LVET＞0.5 ± 0.09 is generally dead group, and PEP/LVET=0.4 ± 0.05 is the survival group, and this analysis can reach the purpose of coronary angiography.
3, can be used as the index of estimating various Therapeutic Method and curative effect of medication, improve situation as cardiac function after estimating use certain operation (as PTCA) or taking certain medicine.
4, can understand body to the influence of various different conditions and extraneous factor to ventricular systolic function, as changes of cardiac function situation and altitude environment after the appraisal hemodialysis to the influence of cardiac function.
5, the present invention adopts number mode low frequency modulations method, can directly realize frequency shift keying (FSK) and with traditional FSK directly modulation or indirectly modulation have any different, originally directly the modulation circuit is simple but because digital signal directly is added to varactor, though realize simply, can influence the stable of frequency.And the FSK indirect frequency modulation, because the switching of two agitators of two f1f2 of Digital Signals, though ensured the stable of carrier frequency, increased by two agitators and used circuit apparent more numerous and diverse, and used several mode FSK modulator approach has reduced by two agitators and guaranteed that carrier frequency stability is unaffected.
6, reduced external interference, because of increased the anti-interference quiet consumption of newly-designed pick off in harvester, it can reduce the pick off external interference, especially the interference in the signal acquisition process.
7, new mensuration cardiac function method, thought-read electrograph ECG and sound figure PCG have been adopted.Therefore measurement point is clear, and repeatability is strong, and method is simple.Be cardiac function, condition has been created in the angina pectoris diagnosis, is better than the out-of-date methods with systolic duration Stl, and saves and can only detect in the wired multichannel of bedside, utilize ECG PCG CPW ACG method for synchronously measuring, and instrument is valuable, and can not be with problems such as machine testings.
8, the present invention can use for a plurality of patients simultaneously, arbitrary patient Shi Junke that do not feel well in time passes to computer by the present invention with patient ECG PCG information and handles to judge patient's changes of cardiac function, seeks heart and brain for the medical worker simultaneously and plant parameter to change and the ailing favourable instrument that provides of getting in touch.
9, the present invention adopts the two-way signal picker of cmos device design, and is low in energy consumption, input resistance＞10 megohms, so leakage current is little, and human body is not had injury.Similar wireless test device ratioing signal is abundant.
Below in conjunction with accompanying drawing embodiment is described in detail:
Fig. 1 is a block diagram of the present invention
Fig. 2 is signals collecting, A/D converter electrical schematic diagram
Fig. 3-1 is the left side of transmitter installation electrical schematic diagram;
Fig. 3-2 is the right-hand part of transmitter installation electrical schematic diagram
Fig. 4-1 is the left side of receiving demodulation device electrical schematic diagram
Fig. 4-2 is the right-hand part of receiving demodulation device electrical schematic diagram
As shown in Figure 1, when Acquisition Circuit is put into arbitrary patient on one's body the time, its patient's hear sounds electrocardiosignal becomes the signal of telecommunication by signal picker and becomes digital signal through A/D converter again and carry out sending transmitter to launch after frequency shift keying (FSK) modulation, and receiver becomes this FM signal that receives into digital signal (being digital demodulation) and delivers to data processor (DPU) or computer (CPU) and handle and judge whether normal last output result of this patient's cardio cerebral function.
P as shown in Figure 2
1, P
2Be respectively the electrocardio (ECG) and hear sounds (PCG) signal of input, this signal amplifies after A/D converter (available ADC0804) converts digital signal to again through the switching controls A/D converter work of single-chip microcomputer (available 8051) control two-way signal and the frequency shift keying fsk signal behind the output encoder, by P through amplifier
0Output to the B of transmitter section
1The input port.
As shown in Figure 3, be made up of amplifying circuit, oscillating circuit, frequency multiplier circuit, power amplifier and mu balanced circuit successively, frequency multiplier circuit is that the oscillator signal of lower frequency that crystal oscillator is provided becomes and satisfies communicating requirement ultrashort wave signal and be transmitted in the air by transmitting antenna T through power amplifier
1Send out.
Be illustrated in figure 4 as receiving demodulation device circuit figure, form by amplifier, agitator, converter, receiving circuit assembly, amplification demodulation part successively.Amplifier amplifies the signal of receiving, agitator provides oscillation source for converter, is used for next step frequency conversion; The frequency conversion and demodulate the frequency shift keying fsk signal once more of receiving circuit assembly; Amplifying demodulator is that fsk signal is transformed into digital signal and is sent to computer interface, and concrete path is: the A among Fig. 4
1Receive behind the aerial signal its amplification, filtering demodulates fsk signal by the MC3357 receiving chip and send LM386 to amplify, again by D
8Detection becomes the digital signal (serial) of high-low level to send S-OUT output, and this output signal can be delivered on the LPT of computer, and LPT reads in computer to be handled, show, prints.
Specific embodiment the key technical indexes: for communication is to form ECG, PCG, pick off leakage current＜0.5MA, dateout PEP LVET data resolution 1/2 apart from 200M, monitoring patient 8 people's information sources
8
Claims (3)
1, the dynamic cardiac function automatic analysis system of a kind of remote measurement, comprise that an outer discharger and a receiving system is characterized in that: discharger is successively by signal picker, amplifier, A/D converter, frequency shift keying, manipulator, transmitter connect to form, and transmitter is made up of amplifier, oscillating circuit, frequency multiplier circuit, power amplifier again successively; Receiving system is made up of fremodyne, digital demodulator, data processor, recording/output apparatus successively; Discharger can be made up of several, the frequency difference of each road emission, and receiving system comes out each road demodulation to be presented at respectively on the recording/output apparatus central display according to different frequencies.
2, analytical system according to claim 1 is characterized in that: the harvester of described discharger is the two-way signal picker, makes with cmos device, and input resistance＞10M Ω, the pick off in the harvester have anti-interference quiet consumption.
3, the method for the dynamic cardiac function of test of analytical system according to claim 1, it is characterized in that: survey the only ECG of thought-read electrograph of dynamic cardiac function, phonocardiographic PCG just can directly find cardiac function contraction time ratio PEP/LUET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99103320 CN1236597A (en) | 1999-03-16 | 1999-03-16 | Automatic analysis system for remote-measuring dynamic cardiac function and method for measuring dynamic cardiac kinetic energy. |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99103320 CN1236597A (en) | 1999-03-16 | 1999-03-16 | Automatic analysis system for remote-measuring dynamic cardiac function and method for measuring dynamic cardiac kinetic energy. |
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| CN1236597A true CN1236597A (en) | 1999-12-01 |
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| CN 99103320 Pending CN1236597A (en) | 1999-03-16 | 1999-03-16 | Automatic analysis system for remote-measuring dynamic cardiac function and method for measuring dynamic cardiac kinetic energy. |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8068906B2 (en) | 2004-06-21 | 2011-11-29 | Aorora Technologies Pty Ltd | Cardiac monitoring system |
| US8233974B2 (en) | 1999-06-22 | 2012-07-31 | Impedimed Limited | Method and device for measuring tissue oedema |
| US8700121B2 (en) | 2011-12-14 | 2014-04-15 | Intersection Medical, Inc. | Devices for determining the relative spatial change in subsurface resistivities across frequencies in tissue |
| US8761870B2 (en) | 2006-05-30 | 2014-06-24 | Impedimed Limited | Impedance measurements |
| US8781551B2 (en) | 2005-07-01 | 2014-07-15 | Impedimed Limited | Apparatus for connecting impedance measurement apparatus to an electrode |
| US9504406B2 (en) | 2006-11-30 | 2016-11-29 | Impedimed Limited | Measurement apparatus |
| US9615766B2 (en) | 2008-11-28 | 2017-04-11 | Impedimed Limited | Impedance measurement process |
| US9615767B2 (en) | 2009-10-26 | 2017-04-11 | Impedimed Limited | Fluid level indicator determination |
| US9724012B2 (en) | 2005-10-11 | 2017-08-08 | Impedimed Limited | Hydration status monitoring |
| US10307074B2 (en) | 2007-04-20 | 2019-06-04 | Impedimed Limited | Monitoring system and probe |
| US11660013B2 (en) | 2005-07-01 | 2023-05-30 | Impedimed Limited | Monitoring system |
| US11737678B2 (en) | 2005-07-01 | 2023-08-29 | Impedimed Limited | Monitoring system |
-
1999
- 1999-03-16 CN CN 99103320 patent/CN1236597A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8233974B2 (en) | 1999-06-22 | 2012-07-31 | Impedimed Limited | Method and device for measuring tissue oedema |
| US8068906B2 (en) | 2004-06-21 | 2011-11-29 | Aorora Technologies Pty Ltd | Cardiac monitoring system |
| US8509886B2 (en) | 2004-06-21 | 2013-08-13 | Aorora Technologies Pty Ltd | Cardiac monitoring system |
| US11737678B2 (en) | 2005-07-01 | 2023-08-29 | Impedimed Limited | Monitoring system |
| US8781551B2 (en) | 2005-07-01 | 2014-07-15 | Impedimed Limited | Apparatus for connecting impedance measurement apparatus to an electrode |
| US11660013B2 (en) | 2005-07-01 | 2023-05-30 | Impedimed Limited | Monitoring system |
| US9724012B2 (en) | 2005-10-11 | 2017-08-08 | Impedimed Limited | Hydration status monitoring |
| US11612332B2 (en) | 2005-10-11 | 2023-03-28 | Impedimed Limited | Hydration status monitoring |
| US8761870B2 (en) | 2006-05-30 | 2014-06-24 | Impedimed Limited | Impedance measurements |
| US9504406B2 (en) | 2006-11-30 | 2016-11-29 | Impedimed Limited | Measurement apparatus |
| US10307074B2 (en) | 2007-04-20 | 2019-06-04 | Impedimed Limited | Monitoring system and probe |
| US9615766B2 (en) | 2008-11-28 | 2017-04-11 | Impedimed Limited | Impedance measurement process |
| US9615767B2 (en) | 2009-10-26 | 2017-04-11 | Impedimed Limited | Fluid level indicator determination |
| US8700121B2 (en) | 2011-12-14 | 2014-04-15 | Intersection Medical, Inc. | Devices for determining the relative spatial change in subsurface resistivities across frequencies in tissue |
| US9149225B2 (en) | 2011-12-14 | 2015-10-06 | Intesection Medical, Inc. | Methods for determining the relative spatial change in subsurface resistivities across frequencies in tissue |
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Owner name: LIU QINGYUAN Free format text: FORMER OWNER: QIN DAMING Effective date: 20020327 |
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Effective date of registration: 20020327 Address after: 450042 Department of Cardiology, the 153 Central Hospital of Henan, Zhengzhou Applicant after: Liu Qingyuan Address before: 450042 Department of Cardiology, the 153 Central Hospital of Henan, Zhengzhou Applicant before: Qin Daming |
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