CN2479985Y

CN2479985Y - Transfusion alarm

Info

Publication number: CN2479985Y
Application number: CN 01242107
Authority: CN
Inventors: 刘晓勤; 王丽; 田辉勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-13
Filing date: 2001-06-13
Publication date: 2002-03-06
Anticipated expiration: 2011-06-13

Abstract

The utility model discloses a transfusion alarm comprising a monolithic, a photosensor, a warning circuit, a liquid-crystal display and a power supply circuit, wherein the output end of the power supply circuit is connected with the power input ends of the above parts, the output end of the photosensor is connected with the detected signal input end of the monolithic, the alarm signal output end on the monolithic is connected with the input end of the warning circuit, the liquid-crystal display is connected with the corresponding output port on the monolithic. The utility model can first clip the photosensor on the transfusion dropper, the monolithic detects the flow velocity according to the pass time of 15 drops, then calculate the time needed for the liquid to be transfused out according to the flow velocity and the inputted volume of the transfusion bottle, and automatically give an alarm and display the bed number, the transfusion alarm is carried with the medical staff, and need not to be left on the transfusion bottle.

Description

Infusion alarm

This utility model relates to the alarm that a kind of hospital clinical uses, and especially relates to a kind of infusion alarm of clinical use.

All there is every day a large amount of patients to need transfusion in hospital, in order to make medical personnel in time understand each patient's transfusion situation, usually on each drip stand of hospital ward, all dispose infusion alarm, existing infusion alarm generally is to report to the police by detecting infusion bottle weight or liquid level, and its checkout gear all need be fixed on infusion bottle or the pipe, trivial operations, device is heavy, both influenced medical treatment, and made patient increase psychological burden again, and also can report by mistake sometimes; Simultaneously, because each infusion bottle all will have alarm of configuration, each lesion will have and the as many alarm of sick bed, if there are several alarms to report to the police simultaneously, medical personnel do not know which is ringing, and can be in busy phenomenon.Especially at night, if the alarm sound of alarm is too loud, influence patient's rest, if sound is too little, medical personnel can't hear again, and influence is to patient's monitoring.

This utility model purpose is to provide a kind of and is carried by medical personnel, and the timely infusion alarm of reporting to the police and showing bed label after finishing transfusion.

For achieving the above object, this utility model comprises single-chip microcomputer, photoelectric sensor, warning circuit, LCDs and power circuit, the outfan of power circuit links to each other with the power input of each part mentioned above, the outfan of photoelectric sensor links to each other with detection signal input (2 foot) on the single-chip microcomputer, alarm signal output ends on the single-chip microcomputer (1 foot) links to each other with the input of warning circuit, and the LCDs input is connected on the output interface (26,27,28 foot) of single-chip microcomputer correspondence.Transmitting terminal and receiving terminal with photoelectric sensor during use are folded in the transfusion drip tube both sides, single-chip microcomputer is according to being detected 15 times of drop at the uniform velocity by photoelectric sensor, calculate flow velocity and show by LCDs, take off photoelectric sensor from transfusion drip tube, control K1 more respectively, K2, K3, capacity and bed label input single-chip microcomputer with infusion bottle, just can carry alarm this moment, single-chip microcomputer is according to flow velocity, capacity and time relation, calculate the time that liquid is totally lost, then automatic output alarm signal, the control warning circuit sends alarm sound and demonstrate bed label on display screen.

As to further improvement of the utility model, go up the indicating circuit that connects the various duties of demonstration at the output interface (22,23,24,25 foot) of single-chip microcomputer, this indicating circuit is made up of the light emitting diode of the luminous wave band of difference.

This utility model compared with prior art has following advantage: (1) is owing to detect infusion parameter and by the single-chip microcomputer record by photoelectric sensor, photoelectric sensor can conveniently take off from infusion bottle, therefore alarm need not be retained on the infusion bottle, can carry by medical personnel, so neither influence medical care precess, also reduce patient's psychological burden, each alarm can be guarded more than 30 sick bed simultaneously; (2) single-chip microcomputer can accurately be controlled and report to the police and demonstration according to the parameter of record, can not cause the confusion of reporting to the police like this, and medical personnel can in time understand the transfusion situation of each sick bed, and whole lesion has only an alarm just enough, can not influence other patients' rest like this; (3) simple to operate, contactless, whole alarm small volume and less weight can be widely used in clinical and community medicine.

Below in conjunction with drawings and Examples this utility model is further described.

Fig. 1 is a functional-block diagram of the present utility model;

Fig. 2 is the wherein circuit diagram of an embodiment of this utility model;

Fig. 3 is that the photoelectric sensor in this utility model is interposed in the structural representation on the transfusion drip tube.

Shown in Fig. 1 ~ 3, this utility model comprises single-chip microcomputer, photoelectric sensor, warning circuit, LCDs and power circuit, and power circuit utilizes the 1.5V battery powered, adopt MAX1764 to carry out voltage transitions, efficient low-consume, and detect supply voltage in real time, undertension is reported to the police; The voltage of the outfan output+5V of power circuit inserts the power input of above-mentioned each ingredient respectively, as their working power; Photoelectric sensor is by infrarede emitting diode, light sensitive diode is formed, infrarede emitting diode is as transmitting terminal, light sensitive diode is as receiving terminal, photoelectric sensor is made into the clip shape, can conveniently be interposed on the transfusion drip tube, infrarede emitting diode and light sensitive diode lay respectively at the both sides of transfusion drip tube like this, when drop drips, light capable of blocking obtains a pulse signal at the outfan of photoelectric sensor, is input to the detection signal input on the single-chip microcomputer, single-chip microcomputer is counted with timing mode, by detecting 15 at the uniform velocity drops, measure 15 times that pulse is used, calculate the flow velocity of drop; This single-chip microcomputer adopts 8 CMOS microprocessor AT89C51, owing to have the EPROM of 4KB in the sheet, has simplified peripheral circuit greatly, and price is suitable simultaneously, and is easy to use.After single-chip microcomputer calculates flow velocity, capacity and bed label input single-chip microcomputer with infusion bottle, parameters such as these flow velocitys, capacity and bed label can shown by the mode of monolithic processor controlled LCDs with menu, and this display screen adopts the SVM802B matrix liquid-crystal display screen, and volume is 3.5CM ^*2CM, power consumption is 10mW, dot matrix is 5 ^*10, high brightness, duplicate rows shows, 8 characters of every row; Matrix liquid-crystal display screen is connected on the output interface P0 mouth (39 foot) of single-chip microcomputer.Single-chip microcomputer is according to flow velocity, capacity and time relation, calculates corresponding input bed label and is totally lost time of liquid, and then output alarm signal is given alarm circuit automatically, and alarm sends alarm sound, demonstrates bed label simultaneously on LCDs.Owing to can take off from transfusion drip tube after photoelectric sensor has detected flow velocity, therefore infusion alarm can be carried, each infusion alarm can be stored the relevant parameter of more than 30 infusion bottle, as long as medical personnel carry an infusion alarm and just can guard more than 30 sick bed simultaneously like this.

As to further improvement of the utility model, on the output interface of single-chip microcomputer, connect the indicating circuit that shows various duties, this indicating circuit is made up of green, yellow, blue, red four light emitting diodes.When the detection task was arranged, green light was lighted; All detect task termination, and green light extinguishes; When measuring liquid drop speed, amber light is lighted, and measures and finishes, and amber light extinguishes; When menu was selected, blue lamp was lighted, and menu is selected to finish, and blue lamp extinguishes; During warning, red light is lighted, and reports to the police and finishes, and red light extinguishes.

Claims

1, a kind of infusion alarm, it is characterized in that: comprise single-chip microcomputer, photoelectric sensor, warning circuit, LCDs and power circuit, the outfan of power circuit links to each other with the power input of each part mentioned above, the outfan of photoelectric sensor links to each other with detection signal input on the single-chip microcomputer, alarm signal output ends on the single-chip microcomputer links to each other with the input of warning circuit, and LCDs is connected on the output interface of single-chip microcomputer correspondence.

2, infusion alarm according to claim 1 is characterized in that: connect the indicating circuit that shows various duties on the output interface of single-chip microcomputer, this indicating circuit is made up of the light emitting diode of the luminous wave band of difference.