CN2192286Y - Multifunction automatic monitor for dynamic eletrocardiogram - Google Patents

Abstract

The utility model relates to a multi-function dynamic electrocardiogram automatic monitor which is suitable for monitoring and diagnosing cardiovascular disease. The multi-function dynamic electrocardiogram automatic monitor is characterized in the utility model is composed of a single chip machine, a magnifying circuit, a converting circuit and a filter circuit which are arranged in an analysis recorder, a liquid crystal display arranged on the analysis recorder, a reset button, a start button and a side communal cuttage grafting opening arranged on the side of the analysis recorder. A transducer chip arranged in a printer pin forms a printing interface circuit. The analysis recorder is an electrocardiograph signal recorder and also a data processor. After sample-taking, processing and record, the data and the waveform are connected with the printer through the communal cuttage grafting opening, so that the precision and the veracity of the recording waveform can be ensured. The monitor has beautiful shape and convenient use.

Description

Multifunction automatic monitor for dynamic eletrocardiogram

This utility model relates to a kind of medical diagnostic equipment, particularly a kind of multi-functional dynamic electrocardiogram automonitor, and it is applicable to the monitoring of cardiovascular disease and diagnosis.

The inspection of ordinary electrocardiogram can only carry out the record description of a few minutes to the patient, and for the irregular change of those rhythms of the heart, particularly paroxysmal change just is difficult to obtain correct record.

Cardiovascular disease is one of the most serious commonly encountered diseases of current harm humans health.The dynamic electrocardiogram monitoring system is one of modernized high-tech means of early diagnosis and correct this disease of diagnosis.Current, domestic and international popular dynamic electrocardiogram monitoring system mainly is made up of three parts: first is the electrocardiosignal record; Second portion is that ecg signal data is handled; Third part is electrocardiogram or diagnostic result output.Its main performance and prescription be, diagnosis applied widely, accuracy rate height, good reliability; Volume is little, and power consumption is little, and is in light weight, easy to operate, elegant in appearance, ratio of performance to price height.According to these requirements, people just design the different dynamic electrocardiogram monitoring system of various characteristics.

The Holter system that the sixties, American Studies went out, first are tape recorders; Second portion is people's microcomputer one by one; Third part is a laser printer.Date processing need be carried out artificial treatment to ecg information by PC by the man-machine conversation mode, and difficult popularization that cost an arm and a leg.

Chinese patent CN8820536 discloses a kind of dynamic ecg monitoring recording system, it is made up of cardiac monitoring monitor, electrocardiogram (ECG) data processor and printer three parts, the electrocardiogram (ECG) data processor replaces with a single-chip microcomputer, strided forward major step to pocketization, its ratio of performance to price has improved, volume, weight have also reduced, but still are three part isolating constructions.The memory data output maximum of electrocardiogram (ECG) data processor has only the 8K byte, and its function has been subjected to considerable restraint.

Chinese patent CN1043620A discloses a kind of portable intelligent cardioelectric monitor, its main feature is the R ripple, T ripple QRS involves the discriminating gear of relevant abnormal parameters, and the design of some functional circuits such as the line that leads comes off, undertension, buzzer warning, its tangible weak point is that button is too many, operation inconvenience and output content lack intuitive, can not directly use the printer output waveform, and the data-storing capacity still has only the 16K byte, the data that can store very little, its function is restricted.

The purpose of this utility model is a kind of multi-functional dynamic electrocardiogram automonitor of developing at above deficiency, it is the electrocardiosignal record, ecg signal data processing two parts are concentrated and are arranged in the analysis recorder, be the electrocardiosignal recorder be again data processor, through over-sampling, processing, data behind the record and waveform connect by public interface and printer, reach the requirement of pocketization, guaranteed the accuracy and the accuracy of wave recording.Liquid crystal display on the analysis recorder has not only been realized simplifying the operation and the human computer conversation, and has improved the ratio of performance to price.

This utility model is achieved in that multi-functional dynamic electrocardiogram automonitor comprises the single-chip microcomputer 80C31 that is contained in the analysis recorder 4, low-pass signal amplifier 1, controllable gain amplifier and analog-digital converter 2, digital filter and the liquid crystal display LCD that is contained in analysis recorder 4 upper ends, the reset key K2 and the lateral public interface of lower end dress, the line 6 that leads connects exploring electrode 7, negative electrode 8, indifferent electrode 9 and I/O input connection-peg 5, cable 11 connects printer plug 12 and I/O output connection-peg 10, wherein, startup button K1 is housed on the analysis recorder 4, start the INTI end of the termination single-chip microcomputer 80C31 of button K1, other end ground connection; The liquid crystal display LCD of 2 * 16 dot characters is equipped with in the upper end of analysis recorder 4, the PO.O of single-chip microcomputer 80C31, PO.1, PO.2, PO.3, PO.4, PO.5, PO.6, PO.7 eight bit data bus respectively with the corresponding connection of data wire DB0, DB1, DB2, DB3, DB4, DB5, DB6, DB7 of liquid crystal display LCD, the control line P1.2 of single-chip microcomputer 80C31 connects the R/S control end of liquid crystal display LCD, the P1.4 mouth of single-chip microcomputer 80C31 connects the R/W end of liquid crystal display LCD, and the P2.7 mouth of single-chip microcomputer 80C31 connects the E sheet choosing end of liquid crystal display LCD; Printer plug 12 built-in converter chips 74164 constitute print interface circuit, it is to become LPT by serial port, its connecting mode is the I foot that the P1.0 mouth of single-chip microcomputer 80C31 connects printer plug 12, the P1.1 mouth of single-chip microcomputer 80C31 connects 11 feet of printer plug 12, the P3.0 mouth of single-chip microcomputer 80C31 switches through 1 foot of parallel operation chip 74164, the P3.1 mouth of single-chip microcomputer 80C31 switches through 8 feet of parallel operation chip 74164,6 feet of single-chip microcomputer 80C31 switch through 7 feet of parallel operation chip 74164, and 14 feet of converter chip 74164 connect 15 feet of printer plug 12.

This utility model can be achieved in that also starting button K1 is the hidden button, and reset key K2 is concealed button.

Good effect of the present utility model is:

1, this utility model can real-time analysis in 24 hours and thousands of kinds of supraventricular, the chamber property of differentiating that record occurs at any time etc. have that the arrhythmia of clinical meaning and ST section change, the QRS wave form varies.Mass storage can keep about about 30 minutes abnormal electrocardiogram waveform and time of origin and multiple valuable statistics, can be with above-mentioned data by printer playback output, its output content is through intelligentized automatic editor, the report of statistics output 24 hr Ambulatory EKG Monitoring, the reference waveform figure after the compression figure of abnormal electrocardiogram waveform and the expansion.19 pathological parameters that in the ambulatory electrocardiogram report, comprise the perfect information analytic record.

2, memory data output of the present utility model adopts 32KRAM can write down 4455 kinds unusual (comprising normal), ecg wave form and time of origin thereof and multiple valuable statistics.

3, this utility model pocketization of profile and elegant in appearance is in light weight, and be easy to operate, ratio of performance to price optimum.

4, public interface is adopted in input and output of the present utility model, uses very convenient.

5, this utility model can be used for recessiveness, the diagnosis of sporadic arrhythmia, the detection of painless property (asymptomatic) myocardial ischaemia, short-term or long-term curative effect of medication monitoring, and multiple functions such as efficacy of new drug test are carried easy to use.

6, this utility model provides a large amount of identifying informations for the doctor, and it has not only improved discrimination, but also has alleviated doctor's work load.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a contour structures sketch map of the present utility model.

Fig. 2 is the sketch map that this utility model connects printer.

Fig. 3 is an operation principle block diagram of the present utility model.

Fig. 4 is an operation principle circuit diagram of the present utility model.

Fig. 5 is a printer interface circuit schematic diagram of the present utility model.

Fig. 6 is a liquid crystal display fundamental diagram of the present utility model.

Wherein:

1, low-pass signal amplifier 2, controllable gain amplifier and analog-digital converter

3, buzzer 4, analysis recorder 5, I/O import connection-peg

6, lead line 7, exploring electrode 8, negative electrode

9, indifferent electrode 10, I/O output connection-peg 11, cable

12, printer plug 13, printer

Shown in Fig. 1,6.When using this utility model, at first exploring electrode 7 is placed on left mid-clavicular line the 5th rib place, negative electrode 8 is placed on right midclavicular line and clavicle intersection point place, and indifferent electrode 9 is placed on right midclavicular line the 9th rib place.Three electrodes are placed on the skeleton to reduce the interference of kindred motion as far as possible.To insert the public interface place and the battery of packing into (this instrument adopts No. 5 aneroid battery of 4 joints) with the I/O input connection-peg 5 that the line 6 that leads connects then.This moment, buzzer 3 of the present utility model sent three buzzings, showed that the instrument operation is normal.This moment liquid crystal display LCD display operation step, operation principle and the process of liquid crystal display LCD are: this eight bit data bus of the PO.0-PO.7 of single-chip microcomputer 80C31 respectively with the corresponding connection of data wire DB0-DB7 of liquid crystal display LCD, the total data or the control figure of single-chip microcomputer 80C31 and liquid crystal display LCD exchange all transmit by this eight bit data bus, the R/S control end of its control line P1.2 and liquid crystal display LCD links, when single-chip microcomputer 80C31 loses one's life the order numeral, send low level by control line P1.2 to the R/S of liquid crystal display LCD end, otherwise when sending data, then send high level to the R/S end.The P1.4 mouth of single-chip microcomputer 80C31 and the R/W of liquid crystal display LCD end link, when single-chip microcomputer 80C31 when liquid crystal display LCD writes data or command word, send low level by the P1.4 mouth to the R/W of liquid crystal display LCD end, otherwise when from liquid crystal display LCD read data, then send high level to the R/W end.The P2.7 mouth of single-chip microcomputer 80C31 connects with the E sheet of liquid crystal display LCD choosing end, when single-chip microcomputer 80C31 will be with liquid crystal display LCD exchange message, then the E end by P2.7 mouth and liquid crystal display send high level, then under P1.2 mouth and the control of P1.4 mouth, transmit demonstration information by data/address bus P0 mouth to liquid crystal device LCD, liquid crystal display LCD then can show the information that single-chip microcomputer 80C31 is transmitted.

Shown in Fig. 1,3,4.Press startup button K1 after preparation finishes, make this instrument enter automatic monitoring state, the time picks up counting.When electrocardiosignal by exploring electrode 7, negative electrode 8, the indifferent electrode 9 that is placed in the certain position of human body and the line 6 that leads, the I/O input interface 5 from the analysis recorder 4 enters analysis recorder 4.Electrocardiosignal is at first amplified the 0.1-40HZ signal through A1 and A2 in the low-pass signal amplifier 1, the high-frequency signal that filtering 40HZ is above, and the A3 that sends into again in controllable gain amplifier and the analog-digital converter 2 carries out second level amplification.A3 has common mode inhibition capacity and AGC control preferably, and its gain is divided into level Four, promptly 15,27,46 and 71 times, makes the amplifier overall gain by 220 to 1100 times.Single-chip microcomputer 80C31 samples to this electrocardiosignal and the A/D conversion by A/D converter with the frequency of 200HZ, and transformation result is read in the ram memory, and then digital signal is carried out digital filtering.And the data of sampling are analyzed, asking for the normal electrocardio ripple of patient has related parameter, sets up this patient's mathematical model (realizing by software) through fuzzy algorithmic approach.After finishing mathematical model, begin the ecg wave form of gathering is carried out pathological analysis and identification and classification, to the ecg wave form that clinical meaning the is arranged storage of classifying.

Shown in Fig. 1,2,5.When patient worn after 24 hours, press reset key K2 earlier, this utility model stops sampling, gets back to original state, waits for playback output.Earlier I/O input connection-peg 5 is taken down from public interface, is changed I/O output connection-peg 10, then printer plug 12 and printer 13 are connected, press function strong after, this utility model can be with the ecg wave form and the analysis result printout of writing down.The Principle of Communication that this utility model when output and printer 13 link is finished by transducer, transducer is to adopt 74164 chips, carry out serial transfer between it and the single-chip microcomputer 80C31, pass to printer 13 by eight parallel-by-bit data then, thereby realized printer and data communication of the present utility model.For saving the power consumption of multi-functional dynamic electrocardiogram automonitor, converter chip 74164 is contained in the printer plug 12, provides positive 5 volts of power supplys by printer 13 to converter chip 74164.Playback duration is shorter during output, can edit, add up the report of output 24 hr Ambulatory EKG Monitoring automatically, comprises multiple abnormal electrocardiogram wave parameter, the compression figure of statistical report and abnormal electrocardiogram waveform and the reference waveform figure of expansion.

Claims (2)

1, a kind of multi-functional dynamic electrocardiogram automonitor, it comprises the single-chip microcomputer 80C31 that is contained in the analysis recorder (4), low-pass signal amplifier (1), controllable gain amplifier and analog-digital converter (2), digital filter and the liquid crystal display LCD that is contained in analysis recorder (4) upper end, the reset key (K2) and the lateral public interface of lower end dress, the line (6) that leads connects exploring electrode (7), negative electrode (8), indifferent electrode (9) and I/O input connection-peg (5), cable (11) connects printer plug (12) and I/O output connection-peg (10), it is characterized in that:

Be equipped with on a, the analysis recorder (4) and start button (K1), the INTI end of a termination single-chip microcomputer 80C31 of startup button (K1), other end ground connection;

B, the liquid crystal display (LCD) of 2 * 16 dot characters is equipped with in the upper end of analysis recorder (4), the P0.0 of single-chip microcomputer 80C31, P0.1, P0.2, P0.3, P0.4, P0.5, P0.6, P0.7 eight bit data bus respectively with the data wire DB0 of liquid crystal display (LCD), DB1, DB2, DB3, DB4, DB5, DB6, DB7 is corresponding to be connected, the control line P1.2 of single-chip microcomputer 80C31 connects the R/S control end of liquid crystal display LCD, the P1.4 mouth of single-chip microcomputer 80C31 connects the R/W end of liquid crystal display LCD, and the P2.7 mouth of single-chip microcomputer 80C31 connects the E sheet choosing end of liquid crystal display (LCD);

C, the built-in converter chip 74164 of printer plug (12) constitutes print interface circuit, it is to become LPT by serial port, its connecting mode is 1 foot that the P1.0 mouth of single-chip microcomputer 80C31 connects printer plug (12), the P1.1 mouth of single-chip microcomputer 80C31 connects 11 feet of printer plug (12), the P3.0 mouth of single-chip microcomputer 80C31 switches through 1 foot of parallel operation chip 74164, the P3.1 mouth of single-chip microcomputer 80C31 switches through 8 feet of parallel operation chip 74164,6 feet of single-chip microcomputer 80C31 switch through 7 feet of parallel operation chip 74164, and 14 feet of converter chip 74164 connect 15 feet of printer plug (12).

2, multi-functional dynamic electrocardiogram automonitor according to claim 1 is characterized in that: starting button (K1) is the hidden button, and reset key (K2) is concealed button.

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