CN1047300C - Portable heart monitor capable of interfacing into a computer network - Google Patents
Portable heart monitor capable of interfacing into a computer network Download PDFInfo
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- CN1047300C CN1047300C CN 91102750 CN91102750A CN1047300C CN 1047300 C CN1047300 C CN 1047300C CN 91102750 CN91102750 CN 91102750 CN 91102750 A CN91102750 A CN 91102750A CN 1047300 C CN1047300 C CN 1047300C
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Abstract
The present invention provides a portable heart monitoring instrument connected with a computer network, which is composed of a lead electrode, a preamplification circuit, a polarization circuit, an automatic grain circuit, an active filter circuit, an A/D conversion circuit, a single chip computer system, a digital communication circuit and a power supply circuit, wherein two-way electrocardiosignals are collected by the lead electrode; the electrocardiosignals are amplified, filtered, converted in an A/D mode, analyzed, diagnosed and sent to a data storage device under the control of a single chip computer, the monitoring instrument can immediately give an alarm when the abnormality is discovered. Patients can communicate with a main computer by telephones, the portable heart monitoring instrument transfers the electrocardiosignals to the main computer, and the electrocardiosignals are diagnosed again, filed and supplied to doctors to be used as the basis of diagnosis by the main computer.
Description
The invention provides a kind of portable heart monitor, belong to a kind of cardiac monitoring instrument.
Basic research confirms, patients with coronary heart disease die suddenly, before the acute myocardial infarction, fatal arrhythmia, a series of ANOMALOUS VARIATIONS has taken place in cardiac electrophysiology, if can in time find these premonitory symptoms, and give effective treatment immediately, just can save patient's life to greatest extent.Therefore, all kinds of cardiac monitoring instruments continue to bring out out.Existing 24 hours monitors, major function is the ambulatory electrocardiogram of record patient daily life, sends hospital then back to by specialist's playback, carries out analyzing and diagnosing, has the regular hour poor between record and the diagnosis, belongs to retrospective detection.Can only be used for the inpatient, be not suitable for monitoring numerous removing patients outside the institute.On November 24th, 1989 put on record, name is called the United States Patent (USP) of " monitoring method of cardiac data and equipment " patent No. for " 4977899 ", announced the portable cardiac custodial care facility of a kind of " can carry out data communication " with remote-control device, this cardiac monitoring equipment is by crosslinking electrode, preposition amplification/filter circuit, mould/number conversion circuit, microprocessor, the digital communication circuit, compositions such as power circuit, take out electrocardiosignal by crosslinking electrode, after sending preposition amplification/filter circuit finishing, become digital signal through mould/number conversion circuit conversion, send into microprocessor, microprocessor starts the digital communication circuit and carries electrocardiosignal through telephone network to remote-control device.This patent provides a kind of equipment that can guard for a long time mobile patient's heart.But, on the circuit of this class cardiac monitoring equipment the automatic gain amplifying circuit not being set, they can only be diagnosed patient's heart rhythm is not normal, can not diagnose treating myocardial ischemia damage, and diagnostic area and clinical value are very restricted.Simultaneously, this custodial care facility by phone when hospital sends data, after digital signal need being reduced to analogue signal, modulating the back again and send, antinoise, the capacity of resisting disturbance of analogue modulation system are relatively poor, and, repeatedly mould/number, D/A switch will cause bigger distortion to the electrocardiosignal of transmission, and resolution reduces, and ecg wave form distorts, computer also can't directly be handled the electrocardiosignal of these analog-modulated, brings inconvenience to clinical practice.
The object of the present invention is to provide a kind of portable heart monitor that can use with computer networking, adopt singlechip technology that patient's cardiac electrophysiology phenomenon is carried out long term monitoring, gather patient's electrocardiosignal, and it is discerned, analyzes, diagnoses, this cardiac monitor has the diagnostic area of broad, it not only can be diagnosed patient's heart rhythm is not normal, simultaneously, also has diagnostic function to patient's treating myocardial ischemia damage, and this cardiac monitor also has stronger capacity of resisting disturbance.
The portable heart monitor that can use with computer networking provided by the invention be a kind of portable heart custodial care facility that adopts digital communication mode can use with computer networking by public telephone network, by crosslinking electrode 1, pre-amplification circuit 2, depolarization circuit 3, auto-gain circuit 4, active filter circuit 5, mould/number conversion circuit 6, single chip circuit 7, digital telecommunication circuit 8, power circuit 9 is formed, crosslinking electrode 1 is by five ware shape electrode slice a, b, c, d, e is arranged evenly on the battery lead plate of being made by insulant, the double electrode matrix of forming, wherein electrode slice e is a ground electrode, electrode slice a, b constitutes the monitoring I and leads, electrode slice c, d constitutes the monitoring II and leads, pre-amplification circuit 2 is by operational amplifier 1IC1A, 1IC1B, 1IC1C, 1IC1D and 1IC2A, the synchronous double-way common mode negative feedback that 1IC2B and peripheral resistance are formed differential amplifier circuit in parallel, operational amplifier 1IC1A, 1IC1B, 1IC1C, the outfan of 1IC1D is connected to the identical resistance 1R6 of resistance respectively, 1R7,1R17,1R18, between the ground electrode sheet e of the common port of four resistance and crosslinking electrode 1, be provided with by operational amplifier 1IC2C and resistance 1R23,1R24, the ground electrode drive circuit that electric capacity 1C5 forms, resistance 1R23 cross-over connection is between the homophase input and outfan of operational amplifier 1IC2C; Resistance 1R24 is connected between the outfan of the ground electrode sheet e of crosslinking electrode 1 and operational amplifier 1IC2C; Electrode slice a, b, c, d are connected respectively to the input of operational amplifier 1IC1A, 1IC1B, 1IC1C, 1IC1D; Electric capacity 1C5 is connected between the common port of the homophase input of operational amplifier 1IC2C and resistance 1R6,1R7,1R17,1R18; Depolarization circuit 3 selects a simulant electronic switch 1IC4 passage T1, resistance 1R36,1R31, electric capacity 1C6, resistance 1R25,1R27, electric capacity 1C7 to form the two-way depolarization circuit by two four, two channel selecting ends of simulant electronic switch 1IC4 respectively with one eight two-way I/O mouths of single chip circuit 7 in two join.Auto-gain circuit 4 selects passage T2, passage T3, passage T4, resistor network 1R28,1R29,1R30,1R32,1R33, the 1R34 of a simulant electronic switch 1IC4 to form two-way PROGRAMMED AUTO gain control circuit by operational amplifier 1IC3A, 1IC3B and two four, two channel selecting ends of simulant electronic switch 1IC4 respectively with one eight two-way I/O mouths of single chip circuit 7 in two join.Digital telecommunication circuit 8 is by modem 4IC1, power amplifier 4IC2, the sinusoidal wave circuit that forms, transducer 4R3 forms, the serial port of the central processing unit 2IC1 of the data input pin of modem 4IC1 and single chip circuit 7 joins, between the data input pin of the serial port of central processing unit 2IC1 and modem 4IC1, also be provided with one two core socket, the plug lead-in wire that matches with it is connected with computer, sine wave in the digital telecommunication circuit 8 forms between the input that circuit is connected to the output of modem 4IC1 and power amplifier 4IC2, the output of power amplifier 4IC2 meets transducer 4R3, the sinusoidal wave circuit that forms is by electric capacity 4C1, adjustable potentiometer 4N1, resistance 4R1, electric capacity 4C2 forms, electric capacity 4C1, adjustable potentiometer 4N1 is serially connected with between the input of the outfan of modem 4IC1 and power amplifier 4IC2, resistance 4R1 is connected between the input of the adjustable end of adjustable potentiometer 4N1 and power amplifier 4IC2, and electric capacity 4C2 is connected between the earth terminal of the input of power amplifier 4IC2 and modem 4IC1.Power circuit 9 is made up of high-power electronic switch 3IC1,3IC2, monolithically integrated switching power supply 3IC4, integrated regulator 3IC3 and peripheral resistance, electric capacity, and one eight two-way I/O mouths of the Enable Pin of high-power electronic switch 3IC1,3IC2 and single chip circuit 7 join; Single chip circuit 7 is made up of central processing unit 2IC1, latch 2IC2, data storage 2IC4 and the program storage 2IC3 and interface circuit 2IC6, the frequency divider 2IC7 that have sampling subprogram, diagnostic subroutine, a communicator program, controls depolarization circuit 3, automatic gain control circuit 4, data communication circuit 8 and power circuit 9 respectively for five in one eight the two-way I/O mouths of central processing unit 2IC1.
The operation principle of the portable heart monitor that can use with computer networking provided by the present invention is as follows: under the control of single-chip microcomputer, pre-amplification circuit amplifies the two-way electrocardiosignal of crosslinking electrode collection synchronously, after depolarization circuit excludes dc polarization voltage, sending into automatic gain control circuit amplifies, again through low-pass filter circuit filtering High-frequency Interference, send into mould/number conversion circuit, with analog signal conversion is digital signal, read through single-chip microcomputer, write entry data memory, and carry out analyzing and diagnosing.When the portable heart monitor captures abnormal signal, various data that obtain in data in the freezing data memorizer and the observation process immediately, and send sound and light alarm.At this moment, power supply by Single-chip Controlling power-circuit breaking analog circuit, with the compunication of hospital or emergency center the time, put through phone earlier, set up digital communi-cations link, then by single-chip microcomputer starting digital telecommunication circuit, binary digital signal is modulated into frequency shift keying signal, through shaping, after the amplification, send into telephone microphone by transducer, pass to computer, for convenience the use of inpatient through telephone network, the serial port that the portable heart monitor also can pass through the central processing unit 2IC1 of single chip circuit 7 directly is connected with computer, transmits binary digital signal at a high speed.
The crosslinking electrode 1 of acquired signal is by five ware shape electrode slice a, b, c, d, the e double electrode matrix of forming on the battery lead plate that insulant is made arranged evenly in the portable heart monitor that can use with computer networking provided by the present invention, wherein electrode slice e is a ground electrode, electrode slice a, b constitute the monitoring I and lead, electrode slice c, d constitute the monitoring II and lead, and crosslinking electrode is fixed on the casing back side by the slot on the portable heart monitor.During use, instrument is placed on the zone that chest is stipulated, crosslinking electrode just can collect the two-way electrocardiosignal of patient's heart zones of different.The patient can also be according to doctor's indication, and changing location covers whole pareordia, prevents to omit early stage limitation myocardial damage.Because electrode almost is the input that directly is connected the preposition amplifying stage of high input impedance, the various known interference of having avoided lead to introduce.Two tunnel electrocardiosignaies of synchronous acquisition can also mutually relatively be got rid of artifact, and for clinical diagnosis provides good condition, the portable heart monitor also can use conventional mornitoring electrode.
In the portable heart monitor that can use with computer networking provided by the present invention by operational amplifier 1IC1A, 1IC1B, 1IC1C, 1IC1D and 1IC2A, the synchronous double-way common mode negative feedback that 1IC2B and peripheral resistance are formed differential amplifier circuit in parallel, two tunnel electrocardiosignaies that collected by crosslinking electrode 1 can be amplified simultaneously, operational amplifier 1IC1A in the pre-amplification circuit 2,1IC1B, 1IC1C, the input of 1IC1D connects crosslinking electrode sheet a respectively, b, c, d, their outfan is connected to the identical resistance 1R6 of resistance respectively, 1R7,1R17,1R18, the common-mode voltage that is detected, between the common port of four resistance and the ground electrode sheet e in the crosslinking electrode, be provided with by operational amplifier 1IC2C and resistance 1R23,1R24, the ground electrode drive circuit that electric capacity 1C5 forms is after straight anti-phase amplification, feed back to ground electrode, eliminated human body common mode earth potential over the ground, overcome because the prestage common mode rejection ratio that uneven impedance of human body and displacement current cause descends.Therefore, provided by the present inventionly can save complicated and 50HZ trap circuit that be difficult to debug, solve of the influence of various external interference preferably electrocardiosignal with the portable heart monitor that computer networking is used.By the two four program control two-way depolarization circuits that select one eight two-way I/O mouths of a simulant electronic switch 1IC4 passage T1, resistance 1R36,1R31, electric capacity 1C6, resistance 1R25,1R27, electric capacity 1C7 and single chip circuit 7 to constitute, its function mainly is the dc polarization voltage that excludes to come from prestage, and electrocardiosignal is coupled to voltage amplifier stage.This circuit can be made quick response to dc polarization voltage, under Single-chip Controlling, polarizing voltage on electric capacity 1C6 and the 1C7, can select a simulant electronic switch 1IC4 passage T1 to form the loop over the ground by current-limiting resistance 1R31,1R27, two four, remove polarization potential, make circuit enter stable duty in the moment of starting.
The auto-gain circuit 4 of the portable heart monitor that can use with computer networking provided by the present invention, be by operational amplifier 1IC3A, 1IC3B and two four selects the passage T2 of a simulant electronic switch 1IC4, passage T3, passage T4, resistor network 1R28,1R29,1R30,1R32,1R33, one eight the two-way automatic gain control circuits that two-way I/O mouth is formed of 1R34 and single chip circuit 7, purpose is to control the gain of analog systems, be unlikely to cause saturated because signal is excessive, or the too small P ripple that causes, the ST section is differentiated unclear, its operation principle is that single-chip microcomputer detects the electrocardiosignal amplitude, during signal gets too small, control simulant electronic switch 1IC4 increases amplification, when signal is excessive, reduce amplification, voltage gain is big, in, little three grades, because that control is amplifier 1IC3A, the feedback current of 1IC3B, therefore, this circuit has good precision and linearity, and the error that simulant electronic switch 1IC4 conducting resistance causes is minimum.
The filter circuit 5 of the portable heart monitor that can use with computer networking provided by the present invention, be by operational amplifier 1IC3C, 1IC3D and resistance 1R37,1R38,1R43,1R44, electric capacity 1C8,1C9,1C10, the two-way Butterworth type step low-pass active filter circuit that 1C11 constitutes, its operation principle is known, owing to detect the needs of electrocardiosignal, the upper limiting frequency of may command circuit is 100HZ, per 10 octaves decay 40db in the stopband district, purpose is that analogue signal enters mould/number conversion circuit 6 filtering High-frequency Interference before, operational amplifier 1IC3C, the 1IC3D unit gain is 1, the input impedance height, output impedance is low, also plays isolated effect.
Mould/number conversion the circuit 6 of the portable heart monitor that can use with computer networking provided by the present invention has adopted eight A/D change-over circuits of multichannel 2IC5, and its operation principle is known.Two control lines of another eight two-way I/O mouths of single chip circuit 7 as 2IC5, the selector channel, and send the starting switching signal, the two-way analog signal sampling to coming from filter circuit is converted to binary digital code.High resistant difference input mode is adopted in the analogue signal input, therefore can suppress noise to greatest extent, and its clock signal is provided behind frequency division by the ALE end of the central processing unit of single chip circuit 7.
The digital telecommunication circuit 8 of the portable heart monitor that can use with computer networking provided by the present invention has adopted modem 4IC1, OTL power amplifier 4IC2 and the sinusoidal wave circuit that forms, and its clock signal is provided behind frequency division by the ALE end of the central processing unit of single chip circuit 7.Select the set-up mode of modem 4IC1 to make binary data be modulated into frequency shift keying audio signal (mid frequency 1080HZ or 1500HZ), make binary digital signal be transported to the data input pin (DATA) of modem 4IC1 with the speed of 300bit/s or 600bit/s simultaneously; Frequency shift keying signal is sent into power amplifier 4IC2 through sine wave formation circuit and is amplified, and is converted to sound wave by transducer, sends into telephone microphone, is transferred to computer through telephone network.Be located at two core sockets between the data input pin of the serial port of single chip circuit 7 and modem 4IC1 and the plug that matches with it, the portable heart monitor can directly be connected with computer, when two core plugs that are connected with computer insert, the serial port of single chip circuit 7 and the data input pin of modem disconnect, join with the computer input, make digital signal directly pass to computer.Simultaneously, another output pin of eight two-way I/O mouths of central processing unit 2IC1 was unsettled after plug inserted, and became high level, and at this moment, single-chip microcomputer promptly directly sends data with the speed of 1200bit/s to computer, has shortened transmitting time.The sine wave of being made up of electric capacity 4C1, adjustable potentiometer 4N1, resistance 4R1, electric capacity 4C2 forms circuit, and purpose is the audio signal of modem 4IC1 output is carried out smoothing processing, the filtering High-frequency Interference.
The single chip circuit 7 of the portable heart monitor that can use with computer networking provided by the present invention is made up of the program storage 2IC3 of central processing unit 2IC1, data storage 2IC4 and subprograms such as having sampling, diagnosis, communicate by letter and interface circuit 2IC6 and frequency divider 2IC7.Control depolarization circuit 3, auto-gain circuit 4, digital telecommunication circuit 8 and power circuit 9 respectively, form program control depolarization circuit, PROGRAMMED AUTO gain control circuit, digital spc telecommunication circuit and programmable power supply circuit for five in one eight the two-way I/O mouths of central processing unit 2IC1.Two control lines in eight two-way I/O mouths of another of central processing unit 2IC1 as A/D converter 2IC5, the control sequence of single chip circuit 7 is following realizations: under the control of program, read the binary data signal of mould/number conversion circuit output, write entry data memory, and discern, handle.When procedure identification is found myocardial damage (myocardial ischemia, acute myocardial injury, the acute myocardial infarction possibility), tachy-arrhythmia (paroxysmal supraventricular tachycardia, paroxysmal ventricular tachycardia, rapid atrial fibrillation, ventricular flutter), bradyarrhythmia (severe sinus bradycardia, property ease in boundary is won the rhythm of the heart), early rich (ventricular premature contraction, ROT, premature ventricular beat, supraventricular morning is rich, the property inserted is early rich, premature ventricular beat), leak rich (II degree Wenckebach atrioventricular block, the II degree is Wenckebach atrioventricular block not), stop winning (ventricular asystole, ventricular fibrillation) etc. during abnormal phenomena, data in the freezing data memorizer immediately, make the high-power electronic switch 3IC2 conducting in the power circuit, send alarm signal by the transducer in the digital communication circuit 8, simultaneously, the various data that obtain in the monitoring process are treated to heart rate, early rich, ST section cartogram, etc. instruction to be sent, starting digital telecommunication circuit 8 is passed to computer with data.Two exterior interrupt of central processing unit 2IC1 are as the control end of manual record and transmission.The patient is if there is subjective symptoms, and the portable heart monitor is not reported to the police as yet, and the patient can trigger two external interrupt of central processing unit 2IC1 by manually writing down button, and single-chip microcomputer promptly stops automatic analysis, diagnosis, 32 seconds electrocardiosignal at once before and after record interrupts.The clock frequency of single chip circuit is 6MHZ/12MHZ, its address latch enable signal outfan (ALE), behind frequency divider 2IC7 frequency division, supply with A/D converter 2IC5 and modem 4IC1 as its clock signal, the single chip circuit working software comprises subprograms such as sampling, diagnosis, communication, solidify in program storage 2IC3, adopt the establishment of MCS-51 assembler language.
The power circuit of the portable heart monitor that can use with computer networking provided by the present invention is made up of eight two-way I/O mouths and peripheral resistance, the electric capacity of high-power electronic switch 3IC1,3IC2, monolithically integrated switching power supply 3IC4, integrated regulator 3IC3, single chip circuit 7.Operation principle is: under programme-control, single chip circuit 7I/O mouth sends signal, trigger high-power electronic switch 3IC1 conducting, starting monolithically integrated switching power supply 3IC4, carry out direct current--DC converting, produce positive-negative power, when electrical switch 3IC2 only needs to send data, just carry out work after warning.Operation principle is: the patient presses the transmission button, interrupts to the central processing unit request by the single-chip microcomputer exterior interrupt, and single-chip microcomputer turns to the execution router, control high-power electronic switch 3IC2 conducting, starting digital telecommunication circuit; Controlling high-power electronic switch 3IC1 simultaneously ends; Cut off the simulation system power supply, to reduce Overall Power Consumption.This power circuit also is provided with the photoelectric display of power voltage insufficient, reminds the patient in time to change battery, and the battery that excessively causes that prevents to discharge damages.
The portable heart monitor that can use with computer networking provided by the present invention is mainly used in numerous patients institute outside is carried out guarding for a long time at a distance except that can guarding the patient who is in hospital, and patient's electrocardiosignal is analyzed, diagnosed; The premonitory symptom of catching the patient and might life-threatening cardiac electrophysiology unusual pounced in record, in time carries out diagnostic alarms, provides the complete firsthand information for clinical, to take corresponding emergency treatment.When feeling well, patient also can not adopt manual recording mode.Owing on monitor, be provided with the PROGRAMMED AUTO gain control circuit, can analyze the variation of electrocardiosignal ST section, make monitor have diagnostic function simultaneously to arrhythmia and treating myocardial ischemia damage, enlarged diagnostic area, improved clinical value.Owing to adopted the direct synthetic mode of binary digital signal carried out digital communication, improved the capacity of resisting disturbance of instrument greatly, can on various telephone lines, use.When the patient goes out away from this area, can check by the networking of long-distance call and belonging network, can also be nearby and the computer networking of locality, obtain support.It is little, easy to operate that this portable heart monitor also has a volume, characteristics such as cheap.
Description of drawings:
The functional-block diagram of Fig. 1, portable heart monitor,
The block diagram of the single chip circuit in Fig. 2, the portable heart monitor,
Crosslinking electrode outline drawing in Fig. 3, the portable heart monitor,
Fig. 4, portable heart monitor casing outline drawing,
Fig. 5, portable heart monitor pre-amplification circuit, depolarization circuit, automatic gain amplifying circuit, active filter circuit schematic diagram,
Fig. 6, portable heart monitor digital telecommunication circuit schematic diagram,
Mould in Fig. 7, the portable heart monitor/number conversion circuit, single chip circuit schematic diagram,
Power principle figure in Fig. 8, the portable heart monitor,
Fig. 9, single-chip microcomputer diagnotor table.
Enforcement below in conjunction with the description of drawings portable heart monitor that can use with computer networking provided by the present invention.
The casing of portable heart monitor can be with reference to making shown in Figure 4, wherein, and 11: panel, 12: loam cake, 13: bottom, 14: on and off switch, 15: socket, 16: electronic clock, 17,18: electronic clock is reconciled button, 19: the line plug that leads, 20: manually write down switch, 21: alarm lamp, 22: transmit button, 23: power supply indicator, 24: line socket leads, 25: battery lead plate slot, 26: transducer sound hole, 27: battery case.
The circuit part of portable heart monitor can be assembled by Fig. 5, Fig. 6, Fig. 7, each circuit shown in Figure 8.The operational amplifier 1IC1, the 1IC2 that form pre-amplification circuit adopt symmetry high input impedance low noise four-operational amplifier TL074, TL064 preferably, and it is that 100K, precision are that 0.1% resistance is to guarantee the high cmrr of pre-amplification circuit that its peripheral resistance 1R8,1R9,1R10,1R11,1R19,1R20,1R21,1R22 adopt resistance.In depolarization circuit and the automatic gain amplifying circuit two four selects an electrical switch 1IC4 to adopt the CD4052 electrical switch.Operational amplifier 1IC3C, 1IC3D in the active filter circuit can select TL064 for use, have selected eight A/D converter AD0809 of multichannel in mould/number conversion circuit for use.Modem 4IC1 in the digital telecommunication circuit can select modulation-demodulation circuit MC14412 for use, and power amplifier 4IC2 can adopt the LM386 integrated circuit.Two high-power electronic switch 3IC1,3IC2 in the power circuit adopt TWH8778, and monolithically integrated switching power supply 3IC4 can select ICL7660 for use, and integrated regulator 3IC3 can adopt LM2931.Single chip circuit central processing unit 2IC1 adopts INTEL80C31 or 80C51, data storage 2IC4 adopts static memory HM6264, program storage 2IC3 adopts EPROM27C32, and working software adopts the MCS--51 assembler language to work out, and its workflow as shown in Figure 9.
Claims (8)
1, a kind of portable heart monitor that can use with computer networking, comprise by one group of ware shape electrode slice (a, b, c, d, e) crosslinking electrode of Zu Chenging (1), pre-amplification circuit (2), depolarization circuit (3), active filter circuit (5), mould/number conversion circuit (6), single chip circuit (7), digital telecommunication circuit (8), power circuit (9), it is characterized in that also being provided with on the monitor auto-gain circuit (4) by single chip circuit (7) control, take out the two-way electrocardiosignal by crosslinking electrode (1), amplify through pre-amplification circuit (2), depolarization circuit (3) is after straight, by the automatic conditioning signal amplitude of auto-gain circuit (4), analog electrocardiogram signal behind active filter circuit (5) filter shape is converted to digital signal by mould/number conversion circuit (6), send into single chip circuit (7) again, judge by single chip circuit (7), after the identification, control figure telecommunication circuit (8) adopts digital communication mode to carry out digital communication by telephone network and computer, in one eight the two-way I/O mouths of single chip circuit (7) five respectively with depolarization circuit (3), auto-gain circuit (4), digital telecommunication circuit (8), power circuit (9) joins, and the serial communication port of single chip circuit (7) connects the signal input part of digital telecommunication circuit (8).
2, the portable heart monitor that can use with computer networking according to claim 1, the pre-amplification circuit (2) that it is characterized in that it is by one group of operational amplifier (1IC1A, 1IC1B, 1IC1C, 1IC1D) with another group operational amplifier (1IC2A, 1IC2B) and the synchronous double-way common mode negative feedback formed of peripheral resistance differential amplifier circuit in parallel, one group of operational amplifier (1IC1A wherein, 1IC1B, 1IC1C, 1IC1D) input of each operational amplifier respectively with one group of electrode slice forming crosslinking electrode (1) in four electrode slice (a, b, c, d) join, the outfan of these operational amplifiers is connected to the identical resistance (1R6 of resistance respectively, 1R7,1R17,1R18), between the ground electrode sheet (e) of the common port of these resistance and crosslinking electrode (1), be provided with by an operational amplifier (1IC2C) resistance (1R23 peripheral with it, 1R24), the ground electrode drive circuit that electric capacity (1C5) is formed, wherein a resistance (1R23) cross-over connection is between the homophase input and outfan of this operational amplifier; The ground electrode sheet (e) that another resistance (1R24) is connected to crosslinking electrode (1) is therewith between the outfan of operational amplifier; Electric capacity (1C5) is connected between the common port of the in-phase input end of this operational amplifier those resistance (1R6,1R7,1R17,1R18) identical with resistance.
3, the portable heart monitor that can use with computer networking according to claim 1 and 2, it is characterized in that the two-way depolarization circuit that described depolarization circuit (3) is selected one group of passage (T1) of a simulant electronic switch (1IC4), formed with resistance (1R36,1R31,1R25,1R27) and electric capacity (1C6,1C7) by a pair of four, two channel selecting ends that this pair four selects a simulant electronic switch (1IC4) respectively with one eight two-way I/O mouths of single chip circuit (7) in two join.
4, the portable heart monitor that can use with computer networking according to claim 1, it is characterized in that described auto-gain circuit (4) is by one group of operational amplifier (1IC3A, 1IC3B) with two four three groups of passage (T2 that select in the simulant electronic switch (1IC4), T3, T4) and resistor network (1R28,1R29,1R30,1R32,1R33, two channel selecting ends that 1R34) the two-way automatic gain control circuit of Zu Chenging, this pair four select a simulant electronic switch (1IC4) respectively with one eight two-way I/O mouths of single chip circuit (7) in two join.
5, the portable heart monitor that can use with computer networking according to claim 1, it is characterized in that described digital telecommunication circuit (8) is by modem (4IC1), power amplifier (4IC2), sinusoidal wave circuit and transducer (4R3) composition of forming, wherein the serial port of the central processing unit (2IC1) of the data input pin of modem (4IC1) and single chip circuit (7) joins, between the data input pin of the serial port of central processing unit (2IC1) and modem (4IC1), also be provided with one two core socket, supporting with it plug lead-in wire is connected with computer, sinusoidal wave formation between the input that circuit is connected to the output of modem (4IC1) and power amplifier (4IC2), the output of power amplifier (4IC2) connects transducer (4R3).
6, the portable heart monitor that can use with computer networking according to claim 5, the sine wave formation circuit that is connected between the output that it is characterized in that modem (4IC1) in the described digital communication circuit (8) and the input of power amplifier (4IC2) is by adjustable potentiometer (4N1), resistance (4R1) and electric capacity (4C1,4C2) form, wherein electric capacity (4C1) and adjustable potentiometer (4N1) are serially connected with between the input of the outfan of modem (4IC1) and power amplifier (4IC2), resistance (4R1) is connected between the input of the adjustable end of adjustable potentiometer (4N1) and power amplifier (4IC2), and another electric capacity (4C2) is connected between the earth terminal of the input of power amplifier (4IC2) and modem (4IC1).
7, the portable heart monitor that can use with computer networking according to claim 1, it is characterized in that described power circuit (9) is made up of one group of high-power electronic switch (3IC1,3IC2) monolithically integrated switching power supply (3IC4), integrated regulator (3IC3) and peripheral resistance, electric capacity, wherein one eight two-way I/O mouths of Enable Pin of this group high-power electronic switch (3IC1,3IC2) and single chip circuit (7) join.
8, the portable heart monitor that can use with computer networking according to claim 1, it is characterized in that described single chip circuit (7) is by central processing unit (2IC1), latch (2IC2), data storage (2IC4) and have the sampling subprogram, diagnostic subroutine, the program storage of communication subprogram (2IC3), interface circuit (2IC6) and frequency divider (2IC7) are formed, control depolarization circuit (3) respectively for five in one eight the two-way I/O mouths of central processing unit (2IC1), auto-gain circuit (4), datel circuit (8) and power circuit (9), the serial port of central processing unit (2IC1) and datel circuit (8) signal input part join.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91102750 CN1047300C (en) | 1991-05-07 | 1991-05-07 | Portable heart monitor capable of interfacing into a computer network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91102750 CN1047300C (en) | 1991-05-07 | 1991-05-07 | Portable heart monitor capable of interfacing into a computer network |
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| Publication Number | Publication Date |
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| CN1066379A CN1066379A (en) | 1992-11-25 |
| CN1047300C true CN1047300C (en) | 1999-12-15 |
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| CN 91102750 Expired - Fee Related CN1047300C (en) | 1991-05-07 | 1991-05-07 | Portable heart monitor capable of interfacing into a computer network |
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| CN (1) | CN1047300C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100444788C (en) | 2006-01-17 | 2008-12-24 | 山东优加利信息科技有限公司 | Remote mobile electrophysiological data monitoring method and apparatus based on WAN |
| CN101427916B (en) * | 2008-12-05 | 2012-02-22 | 张锦景 | Movable network terminating unit and method for monitoring electric physiological data and pathological image |
| CN102158185B (en) * | 2011-05-13 | 2012-09-26 | 河南华南医电科技有限公司 | Cardiac sound amplifying circuit based on MAX 4465 amplifier chip and LM 386 amplifier chip |
| CN102499653A (en) * | 2011-10-27 | 2012-06-20 | 中国人民解放军第四军医大学 | Signal processing system for small-scale radar life detecting instrument |
| CN106073756B (en) * | 2016-05-31 | 2019-01-18 | 肖殿清 | A kind of earphone-type electrocardiogram monitor system and its control method |
| SE541874C2 (en) * | 2017-04-04 | 2020-01-02 | Coala Life Ab | Capturing ecg measurements in a portable sensor device |
| CN112971794A (en) * | 2021-02-07 | 2021-06-18 | 海口讯婕城医疗科技有限公司 | Electrocardio monitoring device comprising four dry electrodes and application method |
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1991
- 1991-05-07 CN CN 91102750 patent/CN1047300C/en not_active Expired - Fee Related
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| CN1066379A (en) | 1992-11-25 |
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Free format text: FORMER OWNER: WAN BO KE YANG YE ZINAN; ZHOU ZHAOHUAI LI ZONGHAO DONG JIANJUN; WANG KUNMING LI XIANREN GUO ZHAOCHENG; WU CHUNAN GUI HANMING WU XIAOGUANG; ZHOU JIAPING LIU HOUJUAN Effective date: 20050617 |
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Effective date of registration: 20050617 Address after: 100089, Haidian District Road, Beijing, No. 1, Tsing Tung building, nine floor Patentee after: Zhang Jinjing Address before: State Street 233000 Anhui city of Bengbu province No. 178 Co-patentee before: Wan Bo Patentee before: Zhang Jinjing Co-patentee before: Wu Chunan Co-patentee before: Gui Hanming Co-patentee before: Wu Xiaoguang Co-patentee before: Zhou Jiaping Co-patentee before: Liu Houjuan Co-patentee before: Ke Yang Co-patentee before: Ye Zinan Co-patentee before: Zhou Zhaohuai Co-patentee before: Li Zonghao Co-patentee before: Dong Jianjun Co-patentee before: Wang Kunming Co-patentee before: Li Xianren Co-patentee before: Guo Zhaocheng |
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