CN201691917U - USB-based portable network household electrocardiogram (ECG) monitor device - Google Patents
USB-based portable network household electrocardiogram (ECG) monitor device Download PDFInfo
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- CN201691917U CN201691917U CN2010201968252U CN201020196825U CN201691917U CN 201691917 U CN201691917 U CN 201691917U CN 2010201968252 U CN2010201968252 U CN 2010201968252U CN 201020196825 U CN201020196825 U CN 201020196825U CN 201691917 U CN201691917 U CN 201691917U
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Abstract
The utility model discloses a USB-based portable network household electrocardiogram (ECG) monitor device. The ECG monitor device comprises an ECG lead circuit unit, a differential amplification circuit unit, a filter circuit unit, a post-amplification circuit unit, a central processing unit, a clock circuit unit, a liquid crystal display circuit unit, an alarm circuit unit, a lead dropping detection circuit and a flash disk storage circuit unit, wherein the ECG monitor circuit unit for detecting the ECG signals of a human body is connected with the skin of a person through conductors; the differential amplification circuit unit is connected with the ECG lead circuit unit through signals; the filter circuit is connected between the differential amplification circuit unit and the post-stage amplification circuit unit; the post-stage amplification circuit is connected with the central processing unit; and the lead dropping detection circuit is connected between the ECG lead circuit unit and the central processing unit. The USB-based portable network household ECG monitor device has the advantages of high data storage capacity, convenient data transcription, convenient and reliable wearing, low cost, and high degree of use freedom for patients.
Description
Technical field
This utility model belongs to a kind of supervising device of portable long-time measurement EGC pattern, relates in particular to a kind of the knot with the Internet network and is incorporated in intelligent monitoring and the analytical equipment of storing based on the networking of real-time collection that forms electrocardiogram (ECG) data on the basis of USB technical transmission and electrocardiogram (ECG) data.
Background technology
Along with the raising of aged tendency of population and people's lives, cardiovascular sickness rate progressively increases, and has become the principal disease that threatens human health.Cardiovascular disease has that the state of an illness is hidden, slower development, characteristics that onset risk is high, and it is very harmful to the cardiac's, is a big killer who threatens human life's safety.In all kinds of monitored parameters, the activity of heart is a vital physiological parameter, particularly to suffering from the patient of serious cardiovascular disease, in heart disease when morbidity,, one had transience, sudden and dangerous characteristics, sb.'s illness took a turn for the worse in order to stop patient, so be necessary patient's electrocardiogram is carried out long-time monitoring in real time, realize in time rescuing and disease prediction, at present because China's medical resource is still very nervous, under the big policy of accelerated development cooperative medical service, tele-medicine and network medical treatment solve the effective way of this problem of patient beyond doubt.Therefore, can have a wide range of applications for the portable heart monitor device system that the heart patient uses.
Cardiac monitoring in 24 hours and analytical system claim the Holter system again, the long-time continuous electrocardiogram recording device of first magnetic recording formula, it is nineteen fifty-seven U.S. doctor physics Norman J Holter invention, it can write down human body 24h or the electrocardio dynamic-change information of longer time is being passed through the computer system playback, handle and analyze, by printer prints output electrocardiogram, the abnormal electrocardiogram that can find a transience or a property crossed by ambulatory electrocardiogram changes, understand patient's pathogeny and incidence, its appearance has great importance to the monitoring of electrocardiosignal.The HOLTER system development is to today, its become practicality in the cardiovascular disease diagnosis field, efficient, noinvasive, safety, accurately, important inspection method that repeatability is strong.
The HOLTER system of traditional type comprises two parts: a part is that band is at patient's tape recording case at a slow speed on one's body; Another part is the playback analytical system.Present solid-state HOLTER system is representative with U.S. Hewlett-Packard Corporation, and it is to be stored on the chip after electrocardiosignal is converted to digital signal, the infull a great problem of magnetic recording that causes because of motor speed varying, time-based maintenance and replacing tape before can avoiding.But still there is the following aspects problem in this type systematic: 1, internal memory is limited in the recording box, can not the long-time data of complete documentation, and cause easily and lose bulk information; 2, the Holter system still belongs to expensive device, and the patient wears at every turn and need pay 100～200 yuan of expenses, and whenever wears once and remove and once all need the patient to go to hospital, concerning the patient, wears not only inconvenience but also uneconomical of use; 3, hospital is the analysis and the reporting post of Holter system acquisition data, finish the collection storage of data and the granting of analysis report, need very big hard-disc storage amount and special responsible organization, workload is big in this respect not only to cause hospital, consumptive material again consuming time, and patient can't in time have gained some understanding to the PD of oneself and grasp.
The utility model content
The purpose of this utility model is to provide a kind of portable network type domestic electrocardio-monitor based on USB, with solve the internal memory that at present existing Holter recording box exists limited, wear cost of use expensive and can not be on based on the basis of patient demand real-time and dynamic allow the patient conveniently check oneself EGC waveform data in the past, the problem of analysis report.
The purpose of this utility model is achieved by the following technical programs: a kind of portable network type domestic electrocardio-monitor based on USB, comprise the cardiac diagnosis lead circuit unit, the differential amplifier circuit unit, the filter circuit unit, back level amplifier circuit unit, central processing unit, the clock circuit unit, the liquid crystal display circuit unit, the warning circuit unit, testing circuit and the USB flash disk memory circuit cells of coming off of leading, wherein the cardiac diagnosis lead circuit unit of human body electrocardiosignal is connected in human body skin by the line that leads, the differential amplifier circuit unit carries out signal with the cardiac diagnosis lead circuit unit and is connected, filter circuit is connected between differential amplifier circuit unit and the back level amplifier circuit unit, back level amplifying circuit is connected with central processing unit, central processing unit and clock circuit unit, the liquid crystal display circuit unit, the warning circuit unit is connected, the testing circuit that comes off of leading is connected between cardiac diagnosis lead circuit unit and the central processing unit, and central processing unit is connected with the USB flash disk memory circuit cells by the USB chip circuit, signal is delivered to the household PC of networking by usb circuit.
Described cardiac diagnosis lead circuit unit comprises: the electrocardioelectrode and the line that leads that is used for connection electrode and device that are placed in the human body skin surface; The mode of leading adopts simulation chest lead mode, and electrode wires is measured the electrocardio potential difference between three ad-hoc locations of chest and the right lower extremity.
Described differential amplifier circuit unit is connected with the cardiac diagnosis lead circuit unit, is made up of 3 operational amplifiers and peripheral 9 resistance, and it is 20 that its gain is set, and the signal collected first step of carrying out of cardiac diagnosis lead circuit unit is amplified.
Described filter circuit unit is a band filter, is connected with the amplifying signal unit of differential amplifier circuit output, is made up of 1 operational amplifier and 6 resistance in periphery and 3 electric capacity, and passband frequency range is between 0.05Hz-34Hz.
Described back level amplifier circuit unit is connected with the filtering signal of filter circuit unit output, is made up of 1 operational amplifier and peripheral 3 resistance.
Described central processing unit, has PWM generator in AD in the sheet, on-chip timer, the interior house dog of sheet and the sheet, be connected with a back level amplifier circuit unit output signal, to coupled clock circuit unit, liquid crystal display circuit unit, warning circuit unit and the management of USB flash disk memory circuit cells with communicate by letter.
The described check circuit that comes off of leading is connected with the unitary output signal of differential amplifier circuit, comprise 2 operational amplifiers, peripheral 6 fixed resistance value resistance, 2 potentiometers and 2 electrochemical capacitors, the check circuit output signal that comes off of leading is connected with fracture in the central processing unit.
Described clock circuit unit is for setting the time of wearing and observing and wear the circuit unit of time, form by clock circuit and segmentation liquid crystal display circuit, wherein clock circuit comprises 1 clock chip PCF8563 and by 4 resistance, 3 leaded multilayer ceramic capacitor and 1 crystal oscillator, be connected with the middle fracture of central processing unit by single-chip microcomputer, the segmentation liquid crystal comprises that Hour Minute Second shows, with central processing unit by one group of I the O mouth be connected.
Described liquid crystal display circuit unit is one to can be used for the circuit unit that electrocardiosignal shows, forms by 1 character formula liquid crystal and its peripheral circuit, with central processing unit by another organize I the O mouth be connected.
Described warning circuit unit is by 1 buzzer, 1 field effect transistor and peripheral pull-up resistor is formed or be made up of 1 resistance and 1 LED lamp, and its signal input is connected with fracture in the central processing unit.
Described domestic network computer, with the electrocardio test set by being connected of USB mouth, will be uploaded to hospital's electrocardio signal analytical system by USB interface unloading to the electrocardiogram (ECG) data of computer hard disc by network savvy and call and analyze; By above technical scheme as can be seen, this utility model is compared with existing Holter system has following advantage and good effect: 1, storage of the high capacity of data and free unloading: by using the mode of USB flash disk data unloading every day to computer hard disc, can well solve that recording box record data capacity was little in the past, the problem of easy obliterated data, on the basis that guarantees this basic function of test electrocardiogram (ECG) data, can also realize the high capacity storage of data.
2, wear convenient and reliable: based on the portable network type domestic HOLTER system and device of USB, because its range of application can expand to family's aspect, the patient can wear voluntarily by operation instruction; Simultaneously, because its integrated come off warning circuit such as check circuit, outage, no electricity and liquid crystal display of leading is an one, use reliable and secure.
3, apparatus cost is cheap: with low cost based on the portable network type domestic electrocardio-monitor of USB, simultaneously, owing to having removed to rent or to treat is each usage charges that means use the Holter system of hospital to be produced, and therefore can produce secular economic benefit.
4, patient's use degree of freedom increases to some extent: the patient can observe the electrocardiosignal waveform at any time according to the LCDs that device carries, can set up on their own the time of wearing by button simultaneously, and utilize networking that the data of being adopted are analyzed by the household PC of networking, not only selecting to go up degree of freedom patient's service time increases to some extent, the state of an illness of the timely understanding oneself that can stay indoors by the domestic network computer can realize cardiopathic early prediction and discovery to a certain extent simultaneously.
Description of drawings
Fig. 1 is based on the portable network type domestic electrocardio-monitor schematic diagram of USB; Fig. 2 is prime differential amplifier circuit figure of the present utility model; Fig. 3 is filter circuit figure of the present utility model; Fig. 4 is a back level amplification circuit diagram; Fig. 5 is USB drive circuit figure; Fig. 6 is the circuit diagram that comes off that leads of the present utility model; Fig. 7 is clock circuit of the present utility model unit figure; Fig. 8 is LCD display circuit unit figure of the present utility model; Fig. 9 is keyboard circuit of the present utility model unit figure; Figure 10 is warning circuit of the present utility model unit figure.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, portable network type domestic electrocardio-monitor based on USB comprises the cardiac diagnosis lead circuit unit, the differential amplifier circuit unit, the filter circuit unit, back level amplifier circuit unit, central processing unit, the clock circuit unit, the liquid crystal display circuit unit, the warning circuit unit, and testing circuit and the USB flash disk memory circuit cells of coming off of leading, wherein the circuit unit that leads of human body electrocardiosignal is connected on the human body skin by the line that leads, adopt the mode of leading of simulation chest lead, utilize the electrocardio potential difference between electrode wires mensuration three ad-hoc locations of chest and the right lower extremity, promptly simulate left upper extremity LA with three points of chest, right upper extremity RA, left lower extremity LL, the electrocardiosignal of measuring between itself and the right lower extremity (simulation ground) (is V1, V3, V5) finish the collection of electrocardiosignal; The differential amplifier circuit unit carries out signal with the cardiac diagnosis lead circuit unit and is connected, filter circuit is connected between differential amplifier circuit unit and the back level amplifier circuit unit, back level amplifying circuit is connected with central processing unit, wherein central processing unit adopt 3.3V power supply low-power consumption and carry A the MSP430F449 single-chip microcomputer of D sampling, but clock chip is selected for use PF8563, USB to drive chip to select for use the operational amplifier that relates in CH375B, each analog circuit to select the low-power consumption TLV2254 amplifier of 3.3V power supply for use; Central processing unit is connected with clock circuit unit, liquid crystal display circuit unit, warning circuit unit, the digital filtering of finishing A/D sampling, data handle and unloading to the function of Flash flash memory, also comprise the indirect control of A/D sample frequency, middle fracture interrupt function and USB chip CH375B simultaneously; The testing circuit that comes off of leading is connected between cardiac diagnosis lead circuit unit and the central processing unit, the connection status that line and human body are led in reflection; Central processing unit is connected and by usb circuit signal is delivered to the household PC of networking with the USB flash disk memory circuit cells by the USB chip circuit, and then utilize hospital's electrocardio signal analytical system of networking by the household PC of networking, can realize the analysis of electrocardio data that test set is surveyed.
As shown in Figure 2, the prime differential amplifier circuit is connected with cardiac diagnosis lead circuit unit output signal, is made up of 3 operational amplifiers and peripheral 9 resistance R 1-R8 and R15, wherein operational amplifier employing low-power consumption amplifier TLV2254.This circuit has two input pins, be respectively RA and LA, right upper extremity and left lower extremity in the difference representative simulation chest lead mode, based on electrocardiosignal belong to small-signal (amplitude one at 0.5mV-5mV, one is 0.05Hz-100Hz for a frequency range), it is 20 that its gain is set, and the signal collected first step of carrying out of cardiac diagnosis lead circuit unit is amplified.
As shown in Figure 3, filter circuit is connected with the amplifying signal unit of differential amplifier circuit output, form by 1 operational amplifier and peripheral 6 resistance R 9-R14 and three capacitor C 1-C3, wherein C1 is an electrochemical capacitor, operational amplifier adopts low-power consumption amplifier TLV2254, consider the input pre-amplifier the electrocardiosignal frequency range one for 0.05Hz-100Hz, and the frequency spectrum of main signal mainly concentrates near the 1Hz, in order to obtain ideal electrocardiosignal, the free transmission range of wave filter is designed between the 0.05Hz-34Hz.
As shown in Figure 4, back level amplifying circuit is connected with the filtering signal of filter circuit unit output, is made up of 1 operational amplifier and peripheral 3 resistance R 46-R48; The reverse operational amplifier that principle is same as one makes up principle, but amplifier is still selected the low-power consumption TLV2254 operational amplifier of 3.3V power supply for use.
As shown in Figure 5, the USB drive circuit is connected with central processing unit, mainly form by USB driving chip CH375B and peripheral circuit thereof, it is that capacity in being stored in Flash reaches when setting numerical value and starts, its work does not influence the data acquisition and processing (DAP) work of system, simultaneously the electrocardio test set is by the connection of USB mouth, will be uploaded to hospital's electrocardio signal analytical system by USB interface unloading to the electrocardiogram (ECG) data of computer hard disc by network savvy and call and analyze.
As shown in Figure 6, the circuit that comes off of leading is connected with the unitary output signal of differential amplifier circuit, comprise 2 operational amplifiers, peripheral 6 fixed resistance value resistance R 67-R72,2 potentiometer P1, P2 and 2 electrochemical capacitor C10, C11, joining the check circuit element output signal that comes off is connected with fracture in the central processing unit, lead and come off circuit by the electrocardiosignal of differential amplification output and the comparative result of electric resistance partial pressure are amplified, realize the saturated of back level audion or end, can judge the duty of device this moment by the output voltage difference of audion.Line comes off if lead, and then single-chip microcomputer produces and interrupts, and drives buzzer circuit for alarming generation alarm.
As shown in Figure 7, the clock circuit unit is made up of a clock circuit and one-part form liquid crystal display circuit, wherein clock circuit comprises 1 clock chip PCF8563 and by 4 resistance R 91-R94,3 leaded multilayer ceramic capacitor C33-C35 and 1 crystal oscillator, be connected with the middle fracture of central processing unit by single-chip microcomputer, the segmentation liquid crystal comprises that Hour Minute Second shows, with the logical one group of I of central processing unit the O mouth be connected, the unlatching of clock circuit module is along with the startup of device begins, timing is since 0, this design mainly is in order to allow the patient clearly observe the time of wearing, the patient can set up on their own the time of wearing simultaneously, and the setting-up time auto levelizer stops voluntarily.
Fig. 8 is LCD display circuit unit figure of the present utility model, it is made up of 1 character formula liquid crystal and its peripheral circuit, with logical another group I of central processing unit the O mouth be connected, real-time and dynamic shows ecg wave form, mainly be for the patient provides needs observing real-time waveform, the patient can select to open or close according to own situation.
Fig. 9 is keyboard circuit unit figure, is made up of 1 resistance and 1 switch key, is connected with fracture in the central processing unit, finishes the function of man-machine interaction, main finishing device, the opening and closing of liquid crystal and the amplification and the reduction capability of liquid crystal display figure.
Figure 10 is warning circuit unit figure, Figure 10 (a) is first kind of technical scheme, it is by 1 buzzer, 1 field effect transistor and peripheral pull-up resistor R82, R83 forms, Figure 10 (b) is another kind of technical scheme, it is made up of 1 resistance and 1 LED lamp, its signal input is connected with fracture in the central processing unit, by piping and the light on and off and the flicker of LED lamp of buzzer, mainly finish warning function to the device abnormal state, for example can by red green LED light with the carrying out of extinguishing the work of indicating device this moment with turn-off, can also represent the process of USB flash disk in the data transfer apparatus among the Flash simultaneously by the flicker that USB writes display lamp.
Claims (10)
1. portable network type domestic electrocardio-monitor based on USB, it is characterized in that: comprise the cardiac diagnosis lead circuit unit, the differential amplifier circuit unit, the filter circuit unit, back level amplifier circuit unit, central processing unit, the clock circuit unit, the liquid crystal display circuit unit, the warning circuit unit, testing circuit and the USB flash disk memory circuit cells of coming off of leading, wherein the cardiac diagnosis lead circuit unit of human body electrocardiosignal is connected in human body skin by the line that leads, the differential amplifier circuit unit carries out signal with the cardiac diagnosis lead circuit unit and is connected, filter circuit is connected between differential amplifier circuit unit and the back level amplifier circuit unit, back level amplifying circuit is connected with central processing unit, central processing unit and clock circuit unit, the liquid crystal display circuit unit, the warning circuit unit is connected, the testing circuit that comes off of leading is connected between cardiac diagnosis lead circuit unit and the central processing unit, and central processing unit is connected with the USB flash disk memory circuit cells by the USB chip circuit, signal is delivered to the household PC of networking by usb circuit.
2. a kind of portable network type domestic electrocardio-monitor according to claim 1 based on USB, it is characterized in that: described cardiac diagnosis lead circuit unit comprises the electrocardioelectrode that is placed in the human body skin surface and is used for the line that leads of connection electrode and device, the mode of leading adopts simulation chest lead mode, and electrode wires is measured the electrocardio potential difference between three ad-hoc locations of chest and the right lower extremity.
3. a kind of portable network type domestic electrocardio-monitor according to claim 1 based on USB, it is characterized in that: described differential amplifier circuit unit is connected with the cardiac diagnosis lead circuit unit, form by 3 operational amplifiers and peripheral 9 resistance, it is 20 that its gain is set, and the signal collected first step of carrying out of cardiac diagnosis lead circuit unit is amplified.
4. a kind of portable network type domestic electrocardio-monitor according to claim 1 based on USB, it is characterized in that: described filter circuit unit is a band filter, be connected with the amplifying signal unit of differential amplifier circuit output, be made up of 1 operational amplifier and peripheral 6 resistance and 3 electric capacity, passband frequency range is between 0.05Hz-34Hz.
5. a kind of portable network type domestic electrocardio-monitor according to claim 1 based on USB, it is characterized in that: described back level amplifier circuit unit is connected with the filtering signal of filter circuit unit output, is made up of 1 operational amplifier and peripheral 3 resistance.
6. a kind of portable network type domestic electrocardio-monitor according to claim 1 based on USB, it is characterized in that: described central processing unit, has PWM generator in AD in the sheet, on-chip timer, the interior house dog of sheet and the sheet, be connected with a back level amplifier circuit unit output signal, to coupled clock circuit unit, liquid crystal display circuit unit, warning circuit unit and the management of USB flash disk memory circuit cells with communicate by letter.
7. a kind of portable network type domestic electrocardio-monitor according to claim 1 based on USB, it is characterized in that: the described check circuit that comes off of leading is connected with the unitary output signal of differential amplifier circuit, comprise 2 operational amplifiers, peripheral 6 fixed resistance value resistance, 2 potentiometers and 2 electrochemical capacitors, the check circuit output signal that comes off of leading is connected with fracture in the central processing unit.
8. a kind of portable network type domestic electrocardio-monitor according to claim 1 based on USB, it is characterized in that: described clock circuit unit is for setting the time of wearing and observing and wear the circuit unit of time, form by clock circuit and segmentation liquid crystal display circuit, wherein clock circuit comprises 1 clock chip PCF8563 and by 4 resistance, 3 leaded multilayer ceramic capacitor and 1 crystal oscillator, be connected with the middle fracture of central processing unit by single-chip microcomputer, the segmentation liquid crystal comprises that Hour Minute Second shows, with central processing unit by one group of I the O mouth be connected.
9. a kind of portable network type domestic electrocardio-monitor according to claim 1 based on USB, it is characterized in that: described liquid crystal display circuit unit is one to can be used for the circuit unit that electrocardiosignal shows, forms by 1 character formula liquid crystal and its peripheral circuit, with central processing unit by another organize I the O mouth be connected.
10. a kind of portable network type domestic electrocardio-monitor according to claim 1 based on USB, it is characterized in that: described warning circuit unit is by 1 buzzer, 1 field effect transistor and peripheral pull-up resistor is formed or be made up of 1 resistance and 1 LED lamp, and its signal input is connected with fracture in the central processing unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201968252U CN201691917U (en) | 2010-05-20 | 2010-05-20 | USB-based portable network household electrocardiogram (ECG) monitor device |
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| CN2010201968252U CN201691917U (en) | 2010-05-20 | 2010-05-20 | USB-based portable network household electrocardiogram (ECG) monitor device |
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| CN201691917U true CN201691917U (en) | 2011-01-05 |
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| CN2010201968252U Expired - Fee Related CN201691917U (en) | 2010-05-20 | 2010-05-20 | USB-based portable network household electrocardiogram (ECG) monitor device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283643A (en) * | 2011-08-19 | 2011-12-21 | 大连民族学院 | Embedded electrocardiosignal acquisition device |
| CN103860165A (en) * | 2014-02-28 | 2014-06-18 | 马骁 | Lead standard interface for collecting electrocardiogram signal and electrocardiograph monitoring device |
| CN104000575A (en) * | 2014-05-04 | 2014-08-27 | 山东中医药大学 | Electrocardiosignal acquisition device |
| CN104242831A (en) * | 2014-10-17 | 2014-12-24 | 绵阳雷迪创微电子科技有限公司 | Wideband amplification device with low noise |
| CN106618557A (en) * | 2016-10-19 | 2017-05-10 | 深圳市杰纳瑞医疗仪器股份有限公司 | Induction type electrocardio probe and device |
| CN107149470A (en) * | 2017-01-23 | 2017-09-12 | 常梅 | A kind of gynemetrics's electronic pulse meter control system based on internet |
-
2010
- 2010-05-20 CN CN2010201968252U patent/CN201691917U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283643A (en) * | 2011-08-19 | 2011-12-21 | 大连民族学院 | Embedded electrocardiosignal acquisition device |
| CN103860165A (en) * | 2014-02-28 | 2014-06-18 | 马骁 | Lead standard interface for collecting electrocardiogram signal and electrocardiograph monitoring device |
| CN104000575A (en) * | 2014-05-04 | 2014-08-27 | 山东中医药大学 | Electrocardiosignal acquisition device |
| CN104242831A (en) * | 2014-10-17 | 2014-12-24 | 绵阳雷迪创微电子科技有限公司 | Wideband amplification device with low noise |
| CN106618557A (en) * | 2016-10-19 | 2017-05-10 | 深圳市杰纳瑞医疗仪器股份有限公司 | Induction type electrocardio probe and device |
| CN107149470A (en) * | 2017-01-23 | 2017-09-12 | 常梅 | A kind of gynemetrics's electronic pulse meter control system based on internet |
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Granted publication date: 20110105 Termination date: 20120520 |