CN202223652U

CN202223652U - Infusion automatic alarm system

Info

Publication number: CN202223652U
Application number: CN2011203541970U
Authority: CN
Inventors: 彭幼清; 张小隽; 张海华; 俞海萍; 张晓莉
Original assignee: Shanghai East Hospital
Current assignee: Shanghai East Hospital
Priority date: 2011-09-21
Filing date: 2011-09-21
Publication date: 2012-05-23
Anticipated expiration: 2021-09-21

Abstract

The utility model relates to an infusion automatic alarm system which comprises an infusion bottle, an alarm buzzer, a capacitive approach switch, an alarm circuit, an alarm reset circuit and a single chip. A probe of the capacitive approach switch is positioned above a bottle mouth at the lower part of the infusion bottle. The capacitive approach switch is connected with the alarm circuit. The alarm circuit, the alarm reset circuit and the alarm buzzer are respectively connected with the single chip. The infusion automatic alarm system has the advantages that the automatic alarm of infusion is realized; the conditions of blood returning and the like after the infusion of the medicinal liquid in the infusion bottle is finished, which are caused by carelessness of people, are avoided; and the infusion automatic alarm system is safe to use and has low cost.

Description

The transfusion automatic alarm system

Technical field

This utility model relates to a kind of transfusion warning system, particularly discloses a kind of transfusion automatic alarm system.

Background technology

Infusion treatment is that hospital uses the most general a kind of Therapeutic Method.At present hospital to use more transfusion to report to the police be that alarm button is placed on the transfusion chair, by patient oneself warning that touches the button, the nurse hears the tinkle of bells, tracks to handle when transfusion is near completion.There is following drawback in this warning system:

1, transfusion patient is sleeping easily because of long-time transfusion; All be prone to cause liquid medicine in the infusion bottle (bag) to be totally lost not know the situation of reporting to the police because of carelessness such as chat, readings again; Patient is prone to the blood back phenomenon even causes blood coagulation and needs are injected again, increases patient's misery;

2, because of infusion bottle (bag) hang higher, the patient that some has defective vision, particularly old people do not see the transfusion progress, even there are family members to accompany and attend to, often find family members' situation of slipping yet, and can cause liquid medicine to be totally lost and the situation of not knowing to report to the police yet;

3, present nurse's lazy weight is national ubiquitous common problem, and making an inspection tour because of manpower also is to cause infusing the major reason that the nurse do not know of being totally lost inadequately.

Summary of the invention

The purpose of this utility model is to overcome the problem that exists in the prior art; Provide a kind of fundamentally the solution to report to the police by people's real time monitoring; Become the equipment automatic monitor alarm; Avoid carelessness because of the people to cause liquid medicine in the infusion bottle situation such as blood back occur of being totally lost, transfusion automatic alarm system safe in utilization, practical.

This utility model is achieved in that a kind of transfusion automatic alarm system; Comprise infusion bottle, alarm buzzer; It is characterized in that: also comprise capacitive approach switch, warning circuit, ann reset circuit, single-chip microcomputer; The probe of said capacitive approach switch is positioned at the bottleneck top of infusion bottle bottom, and said capacitive approach switch links to each other with warning circuit, and said warning circuit, ann reset circuit, alarm buzzer link to each other with single-chip microcomputer respectively; When the liquid level in the said infusion bottle is lower than the probe positions of capacitive approach switch; Capacitive approach switch detects the liquid level change signal through probe; And convert the liquid level change signal to the warning Continuity signal through capacitive approach switch; Trigger the warning circuit conducting, the control alarm buzzer was reported to the police after single-chip microcomputer detected the warning circuit conducting; Said ann reset circuit comes the output alarm circuit reset signal through the conducting of reset switch, and resets and close alarm buzzer through the Single-chip Controlling warning circuit.

When said warning circuit conducting, the voltage between warning circuit and the single-chip microcomputer is 0, and it is 0 o'clock that said single-chip microcomputer detects voltage, and the control alarm buzzer is reported to the police; When the conducting of said ann reset circuit through reset switch came the output alarm circuit reset signal, the Single-chip Controlling warning circuit resetted and keeps breaking off, and the voltage between this moment warning circuit and the single-chip microcomputer is 1, and alarm buzzer is closed condition.

Said warning circuit links to each other with the single-chip microcomputer input/output port through the contact of capacitive approach switch; Said ann reset circuit links to each other with the single-chip microcomputer input/output port through the contact of reset switch, and said alarm buzzer links to each other with the single-chip microcomputer input/output port through audion.

Said capacitive approach switch is fixed on the infusion bottle through the fixed support of Band clamp.

Also comprise the power module that links to each other respectively with single-chip microcomputer, warning circuit, ann reset circuit, alarm buzzer, said power module is 5V lithium battery or 5V direct current of voltage regulation.

The probe of said capacitive approach switch is positioned at 2 ~ 4cm place, bottleneck top of infusion bottle bottom.

The beneficial effect of this utility model is: 1, change manually report to the police as automatic warning into, when having evaded patient infusion because of carelessness cause blood from patient's venous return to tube for transfusion, the generation of situation such as also take advantage of a weak point of air and antibacterial, improved the transfusion safety;

2, whole system adopts the low voltage safety power supply, has quick for installationly, easy to use, does not bring any misery or trouble to the patient;

3, centralized Control, raise the efficiency, can reduce quantity and the labor intensity of making an inspection tour the nurse, through measuring and calculating, a transfusion room per tour of holding 100 people can reduce 2 above nurses (reducing by 6 people every day) at least, it is considerable to practice thrift cost;

4, the whole system cost is not high, popularizes easily;

5, whole system adopts low-voltage power supply, and all components and parts are the low power dissipation electron product, meet energy-conservation requirement.

Description of drawings

Fig. 1 is this utility model frame principle figure.

External structure sketch map when Fig. 2 is the use of this utility model system.

Fig. 3 is the electrical block diagram of this utility model one embodiment.

Among the figure: 1, capacitive approach switch; 2, clip; 3, fixed support; 4, infusion bottle; 5, probe; 6, bottleneck; 7, single-chip microcomputer; 8, alarm buzzer; 9, ann reset circuit; 10, reset switch; 11, warning circuit; 12, audion; 13, power module.

The specific embodiment

According to Fig. 1, Fig. 2, this utility model comprises infusion bottle 4, alarm buzzer 8, capacitive approach switch 1, warning circuit 11, ann reset circuit 9, single-chip microcomputer 7, power module 13.The external structure of this utility model such as Fig. 2; Said capacitive approach switch 1 is fixed on the infusion bottle 4 through the fixed support 3 of Band clamp 2; Said clip 2 is clamped the bottleneck 6 of infusion bottle 4 belows; Said condenser type is positioned at 2 ~ 4cm place, bottleneck 6 tops of infusion bottle 4 bottoms near opening 1 probe 5, promptly pops one's head in 5 to be arranged in the place, warning boundary line that need notify the nurse to change infusion bottle 4 when infusion bottle 4 liquid are about to be totally lost.

Because the dielectric coefficient of water is 80, and the composition of liquid medicine is mainly water in the infusion bottle 4, though therefore the composition of liquid medicine is different, the dielectric coefficient of its liquid medicine is still about in the of 80, and the dielectric coefficient of air is 1, so there is very big-difference in the dielectric coefficient of liquid medicine and air.When the liquid medicine in the infusion bottle 4 drops to probe 5 positions of capacitive approach switch 1 when following; Medium in the infusion bottle 4 becomes air by liquid medicine; Dielectric coefficient becomes 1 by about 80, according to the operation principle of capacitive approach switch 1, makes the agitator starting oscillation of capacitive approach switch 1 inside; Output switching signal, thereby the break-make of control warning circuit.

The structural principle that this utility model is inner such as Fig. 1, Fig. 3, said power module 13 links to each other with single-chip microcomputer 7, warning circuit 11, ann reset circuit 9, alarm buzzer 8 respectively, and said power module is 5V lithium battery or 5V direct current of voltage regulation.Said capacitive approach switch 1 links to each other with warning circuit 11, said warning circuit 11, ann reset circuit 9, alarm buzzer 8, links to each other with single-chip microcomputer 7 respectively; When the liquid level in the said infusion bottle 4 is lower than probe 5 positions of capacitive approach switch 1; Capacitive approach switch 15 detects the liquid level change signal through popping one's head in; And convert the liquid level change signal to the warning Continuity signal through capacitive approach switch 1; Trigger warning circuit 11 conductings, control alarm buzzer 8 was reported to the police after single-chip microcomputer 7 detected warning circuit 11 conductings; Said ann reset circuit 9 comes the output alarm circuit reset signal through the conducting of reset switch 10, and resets through single-chip microcomputer 7 control warning circuits 11, and closes alarm buzzer 8.

When said warning circuit 11 conductings, the voltage between warning circuit 11 and the single-chip microcomputer 7 is 0, and it is 0 o'clock that said single-chip microcomputer 7 detects voltage, and control alarm buzzer 8 is reported to the police; When the conducting of said ann reset circuit 9 through reset switch 10 came the output alarm circuit reset signal, single-chip microcomputer 7 control warning circuits 11 resetted and keep breaking off, and the voltage between this moment warning circuit 11 and the single-chip microcomputer 7 is 1, and alarm buzzer 8 is closed condition.

Said warning circuit 11 links to each other with the input/output port of single-chip microcomputer 7 through the contact of capacitive approach switch 1; Said ann reset circuit 9 links to each other with the input/output port of single-chip microcomputer 7 through the contact of reset switch 10, and said alarm buzzer 8 links to each other with the input/output port of single-chip microcomputer 7 through audion 12.

Embodiment one: combine Fig. 1, Fig. 2 according to Fig. 3, it is the single-chip microcomputer of AT90S2313 that said single-chip microcomputer 7 adopts the model of Ai Temeier semiconductor company (ATMEL).

Said capacitive approach switch 1 constitutes a strength circuit by audion VT1 with element on every side; Said probe 5 is made up of two coaxial metal electrodes and forms an electric capacity, links to each other with the colelctor electrode of audion VT1.

When being full of liquid medicine in the said infusion bottle 4, pop one's head in 5 detected dielectric coefficients about 80, the strength circuit nonoscillatory that be made up of audion VT1 and element on every side this moment, switching tube VT2 is a cut-off state.When the liquid medicine in the said infusion bottle 4 drops to probe 5 during with upper/lower positions; The medium that probe 5 detects in the infusion bottle 4 is an air, and dielectric coefficient becomes 1 of air by 80 of liquid medicine, and the capacity of the electric capacity of capacitive approach switch 1 increases; Make strength circuit starting oscillation; This moment, the radio-frequency voltage signal of audion VT1 emitter stage output became dc control signal after VD1, VD2 detection, and this signal makes switching tube VT2 conducting, and relay K gets electric adhesive; Make switch S 1 closure, so far capacitive approach switch 1 and warning circuit 11 conductings.

The alarm signal of said warning circuit 11 is connected in the single-chip microcomputer 7 through port PD2; The signal that single-chip microcomputer 7 is accepted is a low level signal; When switch S 1 closure is capacitive approach switch 1 and warning circuit 11 conductings; Voltage VCC in the warning circuit 11 is through resistance R 51 ground connection, and port PD2 mouth voltage reduces to 0, and the signal of this moment is alarm signal.

Said alarm buzzer 8 is connected in the single-chip microcomputer 7 through port PB1, and when single-chip microcomputer 7 was received the alarm signal from warning circuit 11, single-chip microcomputer 7 triggered audion 12 conductings of alarm buzzer 8 through port PB1 output 5V signal, and buzzer U1 is reported to the police.

Said ann reset circuit 9 is connected in the single-chip microcomputer 7 through port PD1, and ann reset circuit 9 is controlled the break-make of ann reset circuit 9 and single-chip microcomputer 7 through the break-make of reset switch 10.When reset switch 10 broke off, the power supply VCC current potential of ann reset circuit 9 was through the port PD1 of resistance R 31 adding single-chip microcomputers 7, and this moment, port PD1 was an on-state always; When pressing reset switch 10, when promptly reset switch 10 is closed, the power supply VCC ground connection of ann reset circuit 9; The voltage of port PD1 becomes 0; Port PD1 becomes off state, and off state and the alarm buzzer 8 that single-chip microcomputer 7 detects port PD1 is during for alarm condition, and single-chip microcomputer 7 control warning circuits 11 reset; Promptly control the switch S 1 of warning circuit 11 and break off, and close alarm buzzer 8.

Claims

One kind the transfusion automatic alarm system; Comprise infusion bottle, alarm buzzer; It is characterized in that: also comprise capacitive approach switch, warning circuit, ann reset circuit, single-chip microcomputer; The probe of said capacitive approach switch is positioned at the bottleneck top of infusion bottle bottom, and said capacitive approach switch links to each other with warning circuit, and said warning circuit, ann reset circuit, alarm buzzer link to each other with single-chip microcomputer respectively.
2. according to the described transfusion automatic alarm system of claim 1; It is characterized in that: said warning circuit links to each other with the single-chip microcomputer input/output port through the contact of capacitive approach switch; Said ann reset circuit links to each other with the single-chip microcomputer input/output port through the contact of reset switch, and said alarm buzzer links to each other with the single-chip microcomputer input/output port through audion.
3. according to the described transfusion automatic alarm system of claim 1, it is characterized in that: said capacitive approach switch is fixed on the infusion bottle through the fixed support of Band clamp.
4. transfusion automatic alarm system according to claim 1 is characterized in that: also comprise the power module that links to each other respectively with single-chip microcomputer, warning circuit, ann reset circuit, alarm buzzer, said power module is 5V lithium battery or 5V direct current of voltage regulation.
5. according to the described transfusion automatic alarm system of claim 1, it is characterized in that: the probe of said capacitive approach switch is positioned at 2 ~ 4cm place, bottleneck top of infusion bottle bottom.