CN2487387Y

CN2487387Y - Electronic transfusion alarm

Info

Publication number: CN2487387Y
Application number: CN 01214739
Authority: CN
Inventors: 李凭
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-16
Filing date: 2001-04-16
Publication date: 2002-04-24
Anticipated expiration: 2011-04-16

Abstract

A novel electronic transfusion alarm is fixed on a transfusion ware by a butterfly pipe strap. In the instant that the fluid level in a perfusion tube drops below a photosensitive resistance, the brightness changes, thereby achieving the purpose of alarm. The alarm sound is a beautiful piece of music lasting ten seconds. Once no paramedics comes to deal with after the alarm lasts twenty seconds, the electronic transfusion ware alarms again. With a size of matchbox, a weight of approximate twenty-five grams, precise and reliable use, good productability and low manufacturing cost, the utility model can set the time of alarming before the transfusion is over, thereby being applicable to the mass production.

Description

The Electric Infusion Alarm Device

This utility model is to belong to the medical apparatus and instruments infusion alarm.

Infuse to critical in hospital, blood transfusion is a kind of medical procedure commonly used, because the time of transfusion (blood) is longer, a nurse need look after a plurality of patients again and infuse simultaneously, and so easy generation causes the liquid undiscovered incident that causes malpractice of being totally lost because of the nursing staff is thoughtless, for this reason, people have invented multiple alarm, to remind nursing staff nursing staff and patient, family members, adopt an effective measure, prevent bad accident to take place.The alarm that utilizes the spring scale principle to make is arranged in the market, and promptly the liquid in infusion bottle reduces, and weight saving touches electrical equipment to certain position and reports to the police.The shortcoming of this alarm is that the infusion bottle because of Different Weight just need carry out different electrical equipment adjustment, and departure is bigger simultaneously, in addition because life-time service can cause spring to go bad lost efficacy.Another kind is to utilize to add one section special glass tube in tube for transfusion, adopt phototriode that the variation of the light that no liquid is arranged in the tube for transfusion produces is reported to the police, the shortcoming of this warning is that circuit is complicated, cost is imitated high, main is to add one section glass tubing in tube for transfusion, pollutes easily, a large amount of especially at present disposable transfusion devices that use, be not allow to add glass tubing, therefore need to improve.

The purpose of this utility model is under the prerequisite of not destroying the disposable infusion apparatus, but setting-up time is conveniently reported to the police exactly.

The technical solution of the utility model is to adopt butterfly type pipe clamp, is stuck on the tube for transfusion, utilizes the moment of liquid from having to do not having in the tube for transfusion, produces the variation that is mapped to photoconductive resistance 5 glazings, reaches warning as signal.

This utility model as shown in Figure 1, by four most of compositions, by photoconductive resistance 5UR-74B as signal source; With

audion

9011,9012 is the main amplifying circuit of forming, and information is confirmed to amplify; Make sound-producing device with integrated package CIC3836 and buzzer 6 FT-27, send graceful music sound, report to the police to nursing staff and patient, family members; Form power pack by touch-

switch

4 and 2 1.5 volts of button cells.When transfusion, photoconductive resistance 5 receives a day ordinary ray, and the brightness that sees through liquid is constant, and this moment, circuit working was normal, did not send warning.In case the liquid in the tube for transfusion will finish, the liquid level that this moment, liquid descended is during by photoconductive resistance 5, and brightness promptly changes, and has produced a signal, and alarm sends warning at once like this.

This utility model is concrete to be implemented as shown in Figure 2: the above four most component, all be installed on the printed circuit board 3, in the middle of the printed circuit board (PCB) 3 loader boxes 1, wherein the contact of touch-switch 4 stretches out the first half in butterfly pipe clamp 2 bottoms, when tube for transfusion pushes butterfly type pipe clamp 2, promptly automatic opening power.Photoconductive resistance and the Lower Half that is installed in butterfly type pipe clamp 2 bottoms when tube for transfusion pushes butterfly type pipe clamp 2, have only the luminous energy through tube for transfusion to be mapped in the photoconductive resistance 5.Butterfly type pipe clamp 2 is fixed on the following top of device box 1.The intracavity section of butterfly type pipe clamp 2 is about 5.5 millimeters of major axis.The ellipse that minor axis is about 4 millimeters, long mouthful is wide about 3 millimeters, and butterfly type pipe range 2 highly is 20 millimeters, when tube for transfusion snaps in the butterfly type pipe clamp 2, whole device box is stuck on the tube for transfusion can slide, and also can not influence liquid in pipe simultaneously and flow.

Illustrate:

Fig. 1 is the The Electric Infusion Alarm Device circuit theory diagrams.

Fig. 2 is the profile and the cut-away view of The Electric Infusion Alarm Device.

1, device box; 2, butterfly type pipe clamp; 3, printed circuit board (PCB); 4, touch-switch; 5, photoconductive resistance; 6, buzzer.

The whole volume of this utility model has only a matchbox size, about 25 grams of weight, it is sensitive, reliable to report to the police, and the music of reporting to the police for the first time can stop about 10 seconds automatically, back nursing staff in 20 second does not also arrive in-situ processing if report to the police, then alarm sounding reminding once more.

This utility model can be set the transfusion liquid in pipe position that butterfly type pipe clamp 2 is stuck on the tube for transfusion when being totally lost fully according to transfusion speed, and after warning, medical personnel and patient, family members have the enough time to carry out in-situ processing like this.

This utility model is to utilize the variation of brightness to send warning, therefore can not work under dark fully condition.

Device box 1 of the present utility model is to make with engineering plastics with butterfly type pipe clamp 2, and whole alarm productivity is good, low cost of manufacture, and long service life is suitable for producing in batches.

Claims

1, the The Electric Infusion Alarm Device of being made up of device box (1), printed circuit board (PCB) (3) touch-switch (4), photoconductive resistance (5), buzzer (6) is characterized in that having butterfly type pipe clamp (2).

2, according to claim 1.The Electric Infusion Alarm Device is characterized in that the first half of butterfly type pipe clamp (2) bottom is extended with the contact of touch-switch (4), is equipped with photoconductive resistance (5) with the bottom Lower Half.

3, according to claim 1, The Electric Infusion Alarm Device is characterized in that butterfly type pipe clamp (2) and device box (1) all are to adopt engineering plastics to make.