CN2042344U

CN2042344U - Pocket type heart monitor

Info

Publication number: CN2042344U
Application number: CN 88219639
Authority: CN
Inventors: 王廷础; 臧志健; 于秀敏
Original assignee: 王廷础
Priority date: 1988-05-27
Filing date: 1988-05-27
Publication date: 1989-08-09

Abstract

The utility model discloses a pocket type heart monitor, which has the functions of the momentary continuous display of heart rate and the automatically alarming and remembering for the over speed and under speed of the heart rate and arrhythmia. The utility model records an electrical signal on a tape, provides a diagnostic reference for a doctor, and is provided with a medicine box and prepared with saving medicine at the same time. The size is small, which is convenient for carrying.

Description

Pocket type heart monitor

This utility model is a kind of miniature electronic medical apparatus and instruments that cardiovascular disease is carried out long-term dynamic and static monitoring.

Suffer from cardiovascular disease person and the old people threats such as myocardial ischemia, myocardial infarction and arrhythmia that constantly are subjected to happening suddenly in daily life, some patient is often owing to rescue untimely and dead.Early discovery is in time rescued when therefore falling ill, for the prognosis meaning of cardiovascular patient is very greatly (to cross slow overload alarm though existing monitoring and recording instrument has tachycardias, arrhythmia is reported to the police automatically, but this instrument volume is bigger, price is more expensive, is not easy to the bigger middle-aged and elderly people of range of activity and activity and wears.〕

This utility model purpose is to design that a kind of volume is little, price is low, has the miniature heart monitor of above-mentioned functions again, can be when morbidity early alert, have salvage drug again simultaneously, can in time rescue according to the state of an illness.

Its circuit of this utility model (seeing accompanying drawing 1,2), by electrocardio amplifier stage IC1, IC2 is amplified in frequency-selecting, electrocardiosignal conformality IC3, monostable IC4, IC5 are to number generator IC6, sampling keeps IC7, A/D conversion IC 8, and BCD keeps IC9, heart rate bound numeral is IC10A, B relatively, eight little shape cubicle switchs of bound predetermined switch K4(), hear sounds generator IC11, automatic change-over IC12, IC13, hand switch K1, automatic interrupter K2, blocking swtich K3 forms.

Electrocardiosignal is amplified the back (see figure 1) by amplifier stage IC1, delivers to frequency-selective amplifying stage IC2 and carries out differential frequency-selecting amplification, and signal conformality IC3 is shaped as a square wave with electrocardiosignal, goes to trigger monostable 4, monostable 5 then.To number generator IC6, sampling keeps IC7, under monostable 4, monostable 5 control, produces the voltage that is proportional to electrocardiosignal R-R width, carries out digitized processing (this part sees CN86202592V for details) for A/D converter IC8.Dynamic CBBCD scanning form (see figure 2) is adopted in A/D converter IC8 output, and carries out BCD by IC9 and keep, this circuit reduction stroke in the past/BCD decode procedure, reduced cost, improved reliability.It is that heart rate upper limit comparison IC10B compares for the heart rate lower limit that binary-coded decimal after BCD keeps level IC9 is sent into digital comparator IC10A, B(IC10A), carrying out the heart rate upper limit (100～190 times/minute) heart rate lower limit with eight miniature switch K4 of BCD is scheduled to for 30～90 times/minute, be characterized in simple to operate, dependable performance can be set the scope of upper and lower limit as required during use.In case heart rate transfinites, trigger hear sounds generator IC11, report to the police.Digital Logical Circuits is all adopted in being scheduled to, comparing of heart rate upper and lower limit, need not debug just and can obtain accurate numerical value.

Hear sounds generator IC11 also produces and is subjected to the electrocardiosignal audio signal modulation, and controlled by its hand switch K1, automatic interrupter K2 except that as the alarm.When needs were monitored cardiechema signals, K switch 1 or K switch 2 were opened blocking swtich K3, make electrocardiosignal enter hear sounds generator IC11, and send mimic hear sounds by IC11.

K switch 1 is a touch switch, is positioned at the front of instrument, so that control.Automatic interrupter K2 is provided in a side of on the Medicine box of this instrument, by the unlatching control of Medicine box.Instrument is when operate as normal, and blocking swtich K3 is in on-state, and after the heart rate of user transfinited, instrument was promptly reported to the police by hear sounds generator IC11.When patient or rescue personnel took out the medicine on the instrument, the automatic interrupter K2 on the Medicine box disconnected blocking swtich K3 automatic change-over IC12, IC13 upset.Automatically connect hear sounds generator IC11 simultaneously, electrocardio is by the input of A end, and this moment, cardiechema signals was as monitoring, so that understand the state of an illness.

The quality time is won in early stage rescue when above-mentioned functions is not only fallen ill for the patient, can provide reliable foundation for clinical further Clinics and Practices again.

Accompanying drawing 1 is that electrocardio of the present utility model amplifies, the electrical schematic diagram that reaches number generator and sampling retaining part is amplified in frequency-selecting.

Accompanying drawing 2 takes place and the electrical schematic diagram partly of reporting to the police for A/D conversion, bound comparison, hear sounds.

Claims

1, a kind of the circuit that it is characterized in that this monitor is by electrocardio amplifier stage IC1 by amplifier stage, frequency-selective amplifying stage, to the pocket heart monitor that number generator, hear sounds generator and acoustical generator etc. are formed, and IC2, electrocardiosignal conformality IC3 are amplified in frequency-selecting.Monostable IC4, IC5, to number generator IC6, sampling keeps IC7, A/D conversion IC 8, BCD keeps IC9, and numeral is IC10 hear sounds generator IC11 relatively, and automatic change-over IC12, IC13 form.

2, pocket heart monitor according to claim 1 is characterized in that the BCD of this monitor keeps level (IC9) to adopt synchronized sampling to keep binary-coded decimal also directly to send into digital comparator (IC10A, B).

3, pocket heart monitor according to claim 1 is characterized in that a side of this monitor is provided with a Medicine box, adorns an automatic interrupter (K2) on the Medicine box.

4,, it is characterized in that the automatic interrupter (K2) of this monitor is connected with blocking swtich (K3), permutator (IC12), (IC13) according to claim 1 and 3 described pocket heart monitors.