CN201088580Y - Arteriosclerosis surveymeter - Google Patents
Arteriosclerosis surveymeter Download PDFInfo
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- CN201088580Y CN201088580Y CNU2007201955424U CN200720195542U CN201088580Y CN 201088580 Y CN201088580 Y CN 201088580Y CN U2007201955424 U CNU2007201955424 U CN U2007201955424U CN 200720195542 U CN200720195542 U CN 200720195542U CN 201088580 Y CN201088580 Y CN 201088580Y
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Abstract
An arteriosclerosis detector is provided, which comprises a cardiac sound sensor for the acquisition of cardiac sound signal of human body; a cardiograph electrode for the acquisition of cardiograph signal of human body; a blood pressure cuff core gas pressure sensor, for measuring the blood pressure and the beat of pulse signals; the cardiac sound sensor and the cardiograph electrode are connected with a cardiac sound analogy amplification filtering module and a cardiograph analogy amplification filtering module, to output acquisition signals to an A/D converter and the blood pressure cuff core gas pressure sensor is connected with an amplifying circuit to output the acquisition signals to the A/D converter; the A/D converter connectedly output the converted digital signals to a processing unit. The detector can reflect the arteriosclerosis conditions of the object really, exactly and quantificationally, which solves the defects of the prior arterial oxidation detector of complicated processing and low accuracy. By adopting the digital signal processing, the arteriosclerosis detecting data can be got simply and by computer processing, the processing module development is simple, the control system operation is sable and the service life is long.
Description
Technical field
This utility model belongs to the medical gauge technical field that is used for diagnostic purpose, is specifically related to a kind of early stage inspection of arterial disease and atherosclerosis detector of detection of being used for.
Background technology
Along with growth in the living standard, some and the closely-related disease of life style also progressively increase as the sickness rate of hypertension, obesity, diabetes, hyperlipidemia etc.People are known, and arteriosclerosis is the important complication that links together with these diseases, and it can cause cardiovascular disease and apoplexy etc.Its consequence is to become mortality rate and sickness rate principal element in developed country's central vessel disease and apoplexy.They increase just with surprising rapidity.More and more clearly study and treatment shows, arteriosclerosis needs early diagnosis and early treatment.Always medical worker's main energy is used for the treatment of the patient who occurs symptom.For early stage inspection and early intervention are succeedd, just need identify " asymptomatic " but the patient of " risky ".Examination and assessment arteriosclerosis not only can reduce incidence probability and medical expense, the quality of also can making the life better.
Atherosclerosis detector equipment can be provided for the early stage inspection of arterial disease and early treatment's clinical information.The index of assessment arterial stiffness) and ABI (arm index: the index of assessing obstruction of artery) to arteriosclerosis this instrument uses PWV (pulse wave conduction speed:.Two indexes are that the blood pressure and the waveform of the same cardiac cycle extremity of synchro measure obtain when carrying out the detection of electrocardiogram and phonocardiogram.The company of exploitation atherosclerosis detector is except that the applicant at present, mainly contain Ri Benkelin and Feitian, Beijing, it is development platform that the product of this two company all adopts special-purpose embedded OS, and it mainly exists function singleness, poor stability, on the high side, the shortcoming of using very flexible.For example the measurement for blood pressure is a difficult problem of most blood pressure measuring instruments all the time, it adopts analog circuit, can produce distortion through the signal phase after mimic IIR high pass and the IIR low-pass filtering, and deflection is all relevant with multiple factors such as signal frequencies, because inherent error makes that filtered two signals can't be accurately corresponding, also just be difficult to measure accurately final result, the concordance that its circuit is realized is difficult to guarantee that complicated signal processing algorithm is difficult to realize in many blood pressure measurements; Secondly, when measuring blood pressure, owing to need inflate to cuff, make in gatherer process, measured's extremity have constriction, and this extruding is dangerous for some arteriosclerotics, once more, the analogue signal that electrocardio and hear sounds measurement device are measured is mingled with the high-frequency noise of breathing, low frequency signal such as aroused in interest and instrument itself, causes that the processor received signal is insensitive, waveform quality is poor.Processor Development of Module that the analogue signal that receives is handled is very complicated in addition, and operating system is loaded down with trivial details.
The utility model content
The purpose of this utility model provides a kind of employing Digital Signal Processing mode and obtains arteriosclerosis detection data, simple to operate, adopt Computer Processing, the processing module exploitation is simple, testing result is accurate, control system is stable, long service life can real, the quantitative atherosclerosis detector that reflects measured's arteriosclerosis situation.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of atherosclerosis detector is characterized in that described atherosclerosis detector comprises:
Heart sound transducer is used to gather the cardiechema signals of human body;
Electrocardioelectrode, the electrocardiosignal that is used to gather human body;
Blood pressure cuff nuclear gas pressure sensor is used to measure the blood pressure and pulse signal;
Described heart sound transducer and electrocardioelectrode export acquired signal to an A/D converter after being connected hear sounds simulation amplification filtering module and ECG simulator amplification filtering module respectively, and described blood pressure cuff nuclear gas pressure sensor connects amplifying circuit and also exports acquired signal to described A/D converter;
Digital signal connection after described A/D converter will be changed exports a blood processor to.
Specifically, after described blood pressure cuff nuclear gas pressure sensor connects A/D converter, connect blood processor via a FIR wave filter, and produce static pressure and pulse wave by processor processing.
Described blood pressure cuff nuclear gas pressure sensor connects blood pressure inflation air pump and electromagnetic valve, and blood pressure inflation air pump is connected control with electromagnetic valve by driving circuit module.
Described blood processor is the computer that disposes display and built-in signal processing module, and computer connects a field programmable gate array by USB interface and carries out A/D converter control, and described A/D converter is made up of a plurality of 12 bit A/D converters.
Described field programmable gate array is delivered to computer with the transformation result of A/D converter by USB interface, described atherosclerosis detector also comprises driving circuit module, this drive circuit module carries out the electric current amplification with the switching signal that computer is delivered to described field programmable gate array by USB interface, realizes driving and control that the blood pressure of blood pressure cuff nuclear gas pressure sensor connection setting is inflated air pump and electromagnetic valve.
Described hear sounds simulation amplification filtering module is made up of a hear sounds analogue amplifier and bandwidth-limited circuit; Described ECG simulator amplification filtering module is made up of an ECG simulator amplifier, bandwidth-limited circuit and gain and level adjusting module.
Described blood processor is the computer that disposes display and built-in signal processing module, establishes memorizer in the computer, is externally connected to PRN device.
This atherosclerosis detector is measured hear sounds, electrocardio and three parts of blood pressure by heart sound transducer, electrocardioelectrode and blood pressure cuff nuclear gas pressure sensor, employing is based on the mentality of designing of Computer Processing, adopt computer to handle complicated algorithm and user interface, so just make this detector have the exploitation easy, the simple and flexible operation characteristics.The analogue signal that blood pressure cuff nuclear gas pressure sensor is measured is directly amplified, and then be directly changed into digital signal by AD converter, carry out Computer signal at last and handle, all give full play to the advantage of computer in debugging and output, it is accurate to obtain the result as much as possible.Simultaneously digital signal can by adopt the controlled FIR wave filter (limited long impulse response wave filter) of phase place avoid easily after phase place distortion after the analogue signal filtering, the filtering must the accurate problem such as correspondence of two signals.
Digital translation and transmission system can adopt a plurality of high-precision 12 bit A/D converters to carry out the AD conversion, and a plurality of peripheral kernel control chips adopt the FPGA control AD conversion of large scale integrated circuit high power capacity, and the result is sent to computer by USB interface.On-site programmable gate array FPGA is the highest a kind of of integrated level in the special IC (ASIC), and the user can reconfigure the logic module and the I/O module of FPGA inside, to realize user's logic.The data that blood processor-computer receives the periphery that comprises hear sounds, electrocardio and blood pressure receive and carry out corresponding signal processing, obtain final ABI and PWV, and can be by memorizer and PRN device with case management, demonstration and printing etc.And can in the process of measuring, realize corresponding data communication, go out error protection etc. with peripheral hardware.
Also drive circuit module can be set in this atherosclerosis detector, this module is responsible for computer is carried out the electric current amplification by the switching signal that USB interface is sent to FPGA, drives and controlling blood pressure inflation air pump, electromagnetic valve etc.
Three signal collecting elements that are used to gather hear sounds, electrocardio and blood pressure are existing stability and the higher sensor acquisition equipment of precision.The acquired signal of three signal collecting elements is amplified through heart sound amplifier, ecg amplifier and blood pressure cuff nuclear gas pressure sensor amplifying circuit respectively, the cardiechema signals that amplifies is through after the processing of original heart sound amplifier, through further bandpass filtering, removed the breathing that is mingled with in the signal, the high-frequency noise that waits low frequency signal and instrument itself aroused in interest.Be connected to the input of AD converter after the electrocardiosignal process bandpass filtering that amplifies and gain and the level adjustment.The acquired signal of blood pressure cuff nuclear gas pressure sensor carries out directly delivering to AD converter after high-gain is amplified, and its static pressure and pulse waveform are all realized by Computer Processing.
The beneficial effects of the utility model are, this atherosclerosis detector can be true, accurate, quantitative reflection measured's arteriosclerosis situation, solved that the processing that existing tremulous pulse oxidation detector exists is complicated, the defective on accuracy ground, adopt the Digital Signal Processing mode to obtain arteriosclerosis and detect data, simple to operate, adopt Computer Processing, the processing module exploitation is simple, and control system is stable, long service life.
Description of drawings
Fig. 1 is the composition frame diagram of this utility model specific embodiment.
The specific embodiment
As figure, this atherosclerosis detector adopts commercially available heart sound transducer, electrocardioelectrode and blood pressure cuff nuclear gas pressure sensor to gather hear sounds, electrocardio and blood pressure analogue signal, heart sound transducer is connected with the A/D converter input after connecting hear sounds analogue amplifier and bandwidth-limited circuit, and electrocardioelectrode is connected with A/D converter input after connecting ECG simulator amplifier, bandwidth-limited circuit and gain and level adjusting module.Blood pressure cuff nuclear gas pressure sensor is connected with the A/D converter input after connecting the amplifying circuit of a high-gain, connects computer by the FIR wave filter again then, by computer generation static pressure and pulse wave.Computer connects an on-site programmable gate array FPGA by USB interface and carries out A/D converter control, and described A/D converter is made up of a plurality of 12 bit A/D converters.Gas sensor also is connected with blood pressure inflation air pump and electromagnetic valve, blood pressure inflation air pump is connected control with electromagnetic valve by driving circuit module, the switching signal that this drive circuit module is delivered to described field programmable gate array with computer by USB interface is carried out electric current and is amplified, realize to blood pressure cuff nuclear gas pressure sensor connect be provided with driving and control.Computer terminal is provided with display, and the built-in signal processing module, joins PRN device outward.
Claims (7)
1. atherosclerosis detector is characterized in that described atherosclerosis detector comprises:
Heart sound transducer is used to gather the cardiechema signals of human body;
Electrocardioelectrode, the electrocardiosignal that is used to gather human body;
Blood pressure cuff nuclear gas pressure sensor is used to measure the blood pressure and pulse signal;
Described heart sound transducer and electrocardioelectrode export acquired signal to an A/D converter after being connected hear sounds simulation amplification filtering module and ECG simulator amplification filtering module respectively, and described blood pressure cuff nuclear gas pressure sensor connects amplifying circuit and also exports acquired signal to described A/D converter;
Digital signal connection after described A/D converter will be changed exports a blood processor to.
2. atherosclerosis detector according to claim 1, it is characterized in that described blood pressure cuff nuclear gas pressure sensor connects A/D converter after, connect blood processor via a FIR wave filter, and produce static pressure and pulse wave by processor processing.
3. atherosclerosis detector according to claim 1 is characterized in that described blood pressure cuff nuclear gas pressure sensor connects blood pressure inflation air pump and electromagnetic valve, and blood pressure inflation air pump is connected control with electromagnetic valve by driving circuit module.
4. atherosclerosis detector according to claim 1, it is characterized in that described blood processor is the computer that disposes display and built-in signal processing module, computer connects a field programmable gate array by USB interface and carries out A/D converter control, and described A/D converter is made up of a plurality of 12 bit A/D converters.
5. atherosclerosis detector according to claim 4, it is characterized in that described field programmable gate array is delivered to computer with the transformation result of A/D converter by USB interface, described atherosclerosis detector also comprises driving circuit module, this drive circuit module carries out the electric current amplification with the switching signal that computer is delivered to described field programmable gate array by USB interface, realizes driving and control that the blood pressure of blood pressure cuff nuclear gas pressure sensor connection setting is inflated air pump and electromagnetic valve.
6. atherosclerosis detector according to claim 1 is characterized in that described hear sounds simulation amplification filtering module is made up of a hear sounds analogue amplifier and bandwidth-limited circuit; Described ECG simulator amplification filtering module is made up of an ECG simulator amplifier, bandwidth-limited circuit and gain and level adjusting module.
7. atherosclerosis detector according to claim 1 is characterized in that described blood processor is the computer that disposes display and built-in signal processing module, establishes memorizer in the computer, is externally connected to PRN device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201955424U CN201088580Y (en) | 2007-11-02 | 2007-11-02 | Arteriosclerosis surveymeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201955424U CN201088580Y (en) | 2007-11-02 | 2007-11-02 | Arteriosclerosis surveymeter |
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| Publication Number | Publication Date |
|---|---|
| CN201088580Y true CN201088580Y (en) | 2008-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007201955424U Expired - Fee Related CN201088580Y (en) | 2007-11-02 | 2007-11-02 | Arteriosclerosis surveymeter |
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| CN (1) | CN201088580Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170821A (en) * | 2008-10-01 | 2011-08-31 | 株式会社Irumedi | Cardiovascular analysis system |
| CN102512147A (en) * | 2011-12-27 | 2012-06-27 | 王培勇 | Non-destructive detector for human arteriosclerosis |
| CN110384496A (en) * | 2019-07-24 | 2019-10-29 | 刘阳 | A kind of wearable more ginseng measuring instruments |
| CN113288071A (en) * | 2021-04-23 | 2021-08-24 | 奥萨崎医疗科技有限公司 | Portable arteriosclerosis index measuring instrument |
| CN115736938A (en) * | 2022-11-17 | 2023-03-07 | 东南大学 | Multi-mode physiological signal acquisition device |
| CN116961595A (en) * | 2023-08-08 | 2023-10-27 | 中国人民解放军总医院京南医疗区 | Amplifying circuit and sphygmomanometer |
-
2007
- 2007-11-02 CN CNU2007201955424U patent/CN201088580Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170821A (en) * | 2008-10-01 | 2011-08-31 | 株式会社Irumedi | Cardiovascular analysis system |
| CN102170821B (en) * | 2008-10-01 | 2013-08-07 | 株式会社Irumedi | Cardiovascular analysis system |
| CN102512147A (en) * | 2011-12-27 | 2012-06-27 | 王培勇 | Non-destructive detector for human arteriosclerosis |
| CN110384496A (en) * | 2019-07-24 | 2019-10-29 | 刘阳 | A kind of wearable more ginseng measuring instruments |
| CN110384496B (en) * | 2019-07-24 | 2021-10-08 | 湖南可孚芯驰医疗科技有限公司 | Wearable multi-parameter measuring instrument |
| CN113288071A (en) * | 2021-04-23 | 2021-08-24 | 奥萨崎医疗科技有限公司 | Portable arteriosclerosis index measuring instrument |
| CN115736938A (en) * | 2022-11-17 | 2023-03-07 | 东南大学 | Multi-mode physiological signal acquisition device |
| CN116961595A (en) * | 2023-08-08 | 2023-10-27 | 中国人民解放军总医院京南医疗区 | Amplifying circuit and sphygmomanometer |
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| Date | Code | Title | Description |
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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: 20080723 Termination date: 20101102 |