CN2207146Y - Portable dynamic hart alarm - Google Patents

Abstract

The utility model belongs to a portable heart alarm, comprising an electrocardioelectrode sensor, a pulse quantized line, a monolithic computer system, an alarm line and a display line. The basic function of the utility model is to give different acoustic and light alarms for overspeed heart rate and overslow heart rate and display output at digital. The utility model has the advantages of simple structure, convenience for carrying and low cost, and is suitable for production in bulk and popularization, and a reliable monitoring instrument is provided for home care and reducing the mortality of heart disease.

Description

Portable dynamic hart alarm

This utility model belongs to portable dynamic heart alarm device.

At present both at home and abroad mostly the dynamic heart warning monitor of producing is that the disadvantage of this quasi-instrument is a technical sophistication, costs an arm and a leg for hospital uses, and has so just limited its manufacturing and promotes the use of.It is reported that external such monitor price is at 3,000 to 8,000 dollars, domestic similarly this cover system price also arrives about several ten thousand yuan in thousands of units, so just can't popularize the also unable outfit of small-middle hospital in the family.

The purpose of this utility model is in order to overcome above-mentioned shortcoming, a kind of portable dynamic heart alarm to be provided.

This utility model portable dynamic heart alarm, itself has microcomputer, can carry out real-time analyzing and diagnosing, has several diagnostic functions, and diagnostic result can show that harmony, light are reported to the police with numeral.

Fig. 1 is a circuit diagram of the present utility model.

Fig. 2 is the block diagram of native system.

(1) is the electrocardioelectrode pick off among Fig. 2, and (2) pulse quantizes circuit, (3) single-chip microprocessor system, (4) alarm circuit, (5) circuit.

Its course of work is, the electrocardiosignal that is recorded by electrocardioelectrode sensor (1), quantize circuit (2) through pulse, R ripple in the electrocardiosignal is taken out, and the square-wave pulse sequence of regular one-tenth standard, being input to microsystem (3), microsystem (3) pulse sequence is calculated comparison, when abnormal conditions occurring, undertaken by light emitting diode and piezoelectric buzzer Sound, light are reported to the police, and simultaneously abnormal conditions are carried out numeral by LCDs and show.

The utility model only possesses basic to tachycardias, excessively slow, early rich, carries out the function of sound, light, electric alarm. So just make us only interested in the R ripple interval in the electrocardio ripple, and needn't whole ecg wave form accurately be measured, only to the pulsed quantity allelopathic interest of R ripple, and needn't carry out accurate analog quantity to the conversion of digital quantity, only the R wave spacing simply be calculated comparison, judge and need not carry out complicated analysis, only carry out simple sound, photoelectric alarm, and need not carry out a large amount of data storages, this has just fundamentally guaranteed the simple in structure of this device, with low cost, volume is little.

U among Fig. 1 ₁Be amplifier, U ₂Be monostable trigger, U ₃Be CPU, U ₄Latch, U ₅Memorizer, U ₆Eight D-latch, U ₇, U ₈, U ₉Analog switch, U ₁₀LCD MODULE, V ₁Light emitting diode, SP piezoelectric buzzer, S ₁Heart rate is provided with switch, S ₂Reset switch, its work process is input to R for the electrocardiosignal that is recorded by the chest crosslinking electrode pick off through (1), (2) two ends ₁C ₁And R ₂C ₂The symmetric derivative network of forming, the R ripple is delivered to amplifier U behind differential ₁Middle amplification, U ₁Adopt both-end difference input open loop to amplify, thus the R ripple be enough to make circuit to be in saturated and cut the top state, from U ₁What come is a pulse train, and this pulse train is sent into monostable trigger U ₂Carry out shaping, U ₂Export a standard square wave sequence, send U ₃, U ₄, U ₅The single-chip microprocessor system of forming, U ₆, U ₇, U ₈, U ₉, U ₁₀Form display system.During mensuration, tachycardias divides third gear, and 100 times/minute, 120 times/minute, 140 times/minute, bradycardia divides third gear, and 50 times/minute, 40 times/minute, 30 times/minute.When native system was started working, software was promptly started working, and at first entered the initial value that sign and working cell are set, and inquired about tachycardias, the slow excessively switch S that is provided with then ₁, slow setting value is overrun, crossed to the rate of coring, and then inquires about T ₀Intervalometer, T ₁Enumerator is worked as T ₁Have to overflow promptly to change service routine over to, not then at this cyclic query, T ₀Be 1 millisecond regularly.

When changing service routine over to, measure the heart rate R-R time of interval, determine the normal cardiac rate interlude, win time numerical value then the morning that per minute is measured and compare with normal setting value, when greater than setting value, then newspaper is early rich, while V ₁Bright always, SP rings always, and display screen shows early rich number of times, till user is pressed reset switch.During the newspaper tachycardias, tachycardias setting value and the heart rate value that records are compared,, then report tachycardias, at this moment V if greater than the setting value of overrunning ₁Glittering, SP sends the sound at interval.If the heart rate value that records is then reported bradycardia less than crossing slow setting value, SP sends the slower interval sound.If all in normal range, then service routine goes back to mastery routine to each quantitative value that records, continue inquiry T ₀, T ₁

Of the present utility model being characterised in that comprises that heart electrode pick off (1), pulse quantize circuit (2), single-chip microprocessor system (3), alarm circuit (4) and circuit (5).Wherein pulse quantizes the symmetric derivative network that is input as of circuit (2), comprises R ₁C ₁And R ₂C ₂With amplifier U ₁Circuit (5) comprises latch U ₆, analog switch U ₇, U ₈, U ₉And LCD MODULE U ₁₀

This utility model can be to tachycardias, slow excessively, rich digital value when carrying out sound and light alarm and display alarm early, warning to different situations provides different lights, the sound and numerical value, sound and light alarm is maintained to be pressed till the SR, after measuring, the heart rate show value that show value is maintained to next minute just refreshes V ₁With the heart collecting moving synchronous flashing, it can reflect the pollex situation of heart on the one hand intuitively, but also whether the work of indicating instrument is normal on the other hand.

This utility model is No. 5 battery powered, so be to be perfectly safe to the person.

Claims (3)

1, a kind of portable dynamic heart alarm is characterized in that: comprising electrocardioelectrode pick off (1), pulse quantizes circuit (2), single-chip microprocessor system (3), alarm circuit (4) and circuit (5).

2, by the described heart alarm of claim 1, it is characterized in that: pulse quantizes the symmetric derivative network that is input as of circuit (2), comprises R ₁C ₁, R ₂C ₂With amplifier U ₁

3, by the described heart alarm of claim 1, it is characterized in that: circuit (5) comprises latch U ₆, analog switch U ₇, U ₈, U ₉And LCD MODULE U ₁₀

Images