CN2185563Y

CN2185563Y - Electronic sphygmomanometer

Info

Publication number: CN2185563Y
Application number: CN 94226342
Authority: CN
Inventors: 周若煜; 郭冬根
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-12
Filing date: 1994-03-12
Publication date: 1994-12-21
Anticipated expiration: 2004-03-12

Abstract

The utility model relates to a sphygmomanometer used for medical diagnosis. The trouble of the matching use of the existing sphygmomanometer and a stethoscope at present is overcome at the time of diagnosing blood pressure. After a sound pickup Y is arranged in the cuff air bag a of the sphygmomanometer to carry out signal detection and turn into the input of electrical signals to an amplifying circuit, a loud speaker D and a light-emitting diode LED are pushed to carry out acoustic-optic display to make a detector read the exponential of the blood pressure. The utility model has the advantages of simple structure and convenient operation, and is suitable for carrying out blood pressure detection for patients in medical units and families.

Description

Electronic sphygmomanometer

This utility model relates to a kind of medical diagnostic equipment, particularly a kind of electric sphygmomanometer.

At present in each medical institutions, the blood pressure that the doctor detects patient generally is to adopt sphygomanometer and stethoscope to be used, it is that cuff with sphygomanometer is banded on patient's arm, stethoscope probe is placed on the brachial artery of patient's arm elbow joint top and measure blood pressure, the weak point of this traditional detection method is: capacity of resisting disturbance is not strong, doctor and patient's action and extraneous noise jamming, might make measurement can not carry out or occur diagnostic error, in addition, its operation is also inconvenient, band stethoscope sebific duct on ear is longer, can not carry out other work, crowded, lively place is used inconvenient, particularly when the families of patients of family uses, more feels the trouble that two apparatuses use simultaneously.

It is a kind of simple in structure, easy to use that the purpose of this utility model is to provide, the electric sphygmomanometer that need not stethoscope be used.

This utility model is finished with following mode: electric sphygmomanometer, it comprises sphygomanometer, on the cuff airbag a of sphygomanometer, pick up Y is housed, by pick up Y and connect the signal deteching circuit ［ 1 ］ that potentiometer W forms and output signal to amplifying circuit ［ 2 ］ afterwards, output signal promotes display circuit ［ 3 ］.The secondary common emitter amplifying circuit that amplifying circuit ［ 2 ］ is made up of audion BG1 and BG2 constitutes via the transformer coupled push-pull power amplifier circuit that transformator B1 and B2 and audion BG3 and BG4 form, or adopting integrated amplifier IC to constitute, IC adopts upc1218H or LM386.Display circuit ［ 3 ］ is by speaker D and connects by resistance R serial connection LED and constitute

This utility model electric sphygmomanometer, have simple in structure, cost is low, easy to use, need not be used by stethoscope when detecting patient's blood pressure, capacity of resisting disturbance is strong, adopts acousto-optic to show that simultaneously patient's brachial artery beats, and makes the tester read blood pressure index, patient and doctor's action is not limited to, all can normally use in various places, improve diagnostic accuracy, be a kind of comparatively ideal blood pressure diagnostor.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is this utility model circuit block diagram.

Fig. 3 is this utility model embodiment one circuit diagram.

Fig. 4 is this utility model embodiment two circuit diagrams.

Fig. 5 is this utility model embodiment three-circuit figure.

Fig. 6 is this utility model power circuit diagram.

Below in conjunction with accompanying drawing the utility model is described in further detail:

As shown in Figure 1 and Figure 2, the utility model electronic sphygmomanometer is by sphygmomanometer and at the cuff airbag a of sphygmomanometer sound pick-up Y to be housed, by sound pick-up Y and connect the signal deteching circuit 1 that potentiometer W forms, the signal that detects is inputed to after the amplifying circuit 2, output promotes display circuit 3 work, provides working power by power circuit 4. The circuit of the utility model electronic sphygmomanometer can adopt such as Fig. 3, Fig. 4, Fig. 5, circuit shown in Figure 6.

Embodiment one: as shown in Figure 3, electric sphygmomanometer be by: be contained in the slim pick up Y on the cuff a and meet potentiometer W, form signal deteching circuit 1, detect patient's brachial artery jitter by pick up Y and export amplifying circuit 2 to through potentiometer W dividing potential drop, amplifying circuit 2 adopts by audion BG1, two utmost point common emitter amplifiers that BG2 forms are as middle amplifying stage, output signal to the transformer coupled push-pull power amplifier circuit of being made up of transformator B1 and BG2 and audion BG3 and BG4 from audion BG2 colelctor electrode, the signal after output is amplified promotes by speaker D and connects the signal display circuit of being made up of resistance R 11 serial connection LEDs 13.

Embodiment two: as shown in Figure 4, its signal deteching circuit 1 as above-mentioned embodiment one, input to 1 foot of integrated amplifier IC through capacitor C 1 by the electric-examination device W dividing potential drop output detection signal of signal deteching circuit 1, integrated amplifier IC adopts the upc1218M type, and the signal after amplifying from 4,5, the 6 feet output of IC promotes speaker D and LED 1 shows.

Embodiment three: as shown in Figure 5, this utility model and the foregoing description two are basic identical, and different is, and integrated amplifier adopts the LM386 cake core, and the foot of its input and output number as shown in Figure 5.

The power circuit 4 of this utility model electric sphygmomanometer as shown in Figure 6, be by transformator B with civil power 220V blood pressure lowering after output after bridge rectifier Z and the filtering of resistance R capacitor C the output DC source.The outfan of accumulator E and rectifier power source selects the output of one of two kinds of power supplys as working power through shunting switch K, makes things convenient for user.

The using method of this utility model electric sphygmomanometer is identical substantially with the service routine of common sphygomanometer, also promptly: the protruding place (pick up Y is housed) of cuff airbag a is pressed on the brachial artery of patient's elbow joint top, then the cuff airbag is enclosed and tie, airbag is inflated, connect working power, power supply indicator is bright, slowly venting then, and listen speaker whether to send the pulsation sound, observe the hydrargyrum height of hydrargyrum mercury column, mercury pressure when writing down first peal, be the maximal blood pressure number of degrees,, volume can be transferred big in the noise place, otherwise turn down, measurement finishes, and turns off power supply, the mercury pressure when writing down last peal, be the minimal blood pressure number of degrees, open the cuff airbag.

Claims

1, a kind of electric sphygmomanometer, it comprises sphygomanometer, it is characterized in that on the cuff airbag a of sphygomanometer pick up Y being housed, by pick up Y and connect the signal deteching circuit [1] that potentiometer W forms and output signal to amplifying circuit [2] afterwards, output signal promotes display circuit [3].

2, according to the described electric sphygmomanometer of claim 1, it is characterized in that secondary common emitter amplifying circuit that amplifying circuit ［ 2 ］ is made up of audion BG1 and BG2 constitutes via the transformer coupled push-pull power amplifier circuit that transformator B1 and B2 and audion BG3 and BG4 form, or adopting integrated amplifier IC to constitute, IC adopts upc1218H or LM386.

3,, it is characterized in that display circuit ［ 3 ］ is by speaker D and connects by resistance R serial connection LED and constitute according to the described electric sphygmomanometer of claim 1.