CN205198599U

CN205198599U - Miniature infrared photoelectricity formula bit alarm that shows bit speed

Info

Publication number: CN205198599U
Application number: CN201521049105.2U
Authority: CN
Inventors: 原崧育; 原桂彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-11
Filing date: 2015-12-11
Publication date: 2016-05-04
Anticipated expiration: 2025-12-11

Abstract

Miniature infrared photoelectricity formula bit alarm that shows bit speed belongs to the supplementary field of medical treatment, the utility model discloses a solve the unsuitable problem of popularizing and applying of current infusion monitor technique. The utility model discloses a U type photoelectric switch U2, buzzer U1, PNP triode Q1, switch S1, potentiometre R1, resistance R2 and DC power supply VCC, U type photoelectric switch U2's the inboard relative position in U type both sides is transmitting terminal and receiving terminal respectively, and the transmitting terminal sets up emitting diode LED, and the receiving terminal sets up phototriode VT, and U type photoelectric switch U2 card makes emitting diode LED and phototriode VT be located the relative both sides of bit calabash respectively on the lateral wall of bit calabash liquid level top, U type photoelectric switch U2 gathers the bit and passes through the condition, if no bit passes through, PNP triode Q1 drive buzzer U1 report to the police.

Description

The miniature infrared light electric-type infusion alarm of display dropping speed

Technical field

This utility model relates to the automatic monitoring equipment of a kind of hospital and family's drop process, belongs to medical field of auxiliary.

Background technology

Medical science venous transfusion is clinical medical critical treatment means, and what the mode of most drop was applied is gravity principle, and medicine bottle or medicated bag hang on infusion stand, and the medicinal liquid in bottle can down drip.In drop process, care provider is needed to observe the speed of drop and process.Due to the drop time can not be estimated accurately, in drop process, entourage is needed to close injecting medical liquid surplus at any time, time one is long very tired, especially at night, this phenomenon is more general, brings nervous and tired and inconvenience to patient and entourage.So there is following limitation in drop:

If 1. transfusion drip speed is improper may cause patient body discomfort even threat to life safety;

2. transfusion time is long, easily causes nursing staff and patient's carelessness, increases malpractice hidden danger;

3. need to monitor infusion process at any time, add the working strength of nursing staff, consume the energy of patient entourage.When medicinal liquid drips off soon, need Timeliness coverage, allow medical personnel change dressings or terminate drop, otherwise just there will be in air intravasation and form aeroembolism, the situations such as blood coagulation blocking syringe needle, gently then delay treatment, heavy then entail dangers to patients ' lives safety, generation malpractice.

In order to solve in venous transfusion to the series of problems that patient and medical personnel bring, realize the intelligent monitor of infusion process better, for many years, both at home and abroad all for this has been a large amount of experiments and research, have developed multiple transfusion monitoring equipment, its developing history mainly comprises following so several stage.

1. the mechanical infusion monitoring stage: just someone proposes a kind of detection method of mechanical infusion bottle liquid level as far back as 1985 time, the method is that the principle utilizing the decline of liquid level in infusion bottle that its weight can be caused to decline detects its liquid level, the main tool used is spring scale, be used for weighing the weight of medicinal liquid bottle, but the situation of reality is comparatively complicated, the weight of medicine bottle is diversified, therefore the reliability of this kind of method is very poor, and use inconvenience, be not suitable for applying.

2. the condenser type infusion monitoring stage: the principle of condenser type infusion monitoring utilizes the change of liquid level in infusion bottle that the principle of capacitance variations can be caused to monitor the liquid level in infusion bottle, but the volume size due to the infusion bottle in clinical transfusion has a variety of, if want adopting said method just to need to design multiple different transfusion monitoring equipment, this can bring great inconvenience to the use of medical personnel, is therefore not suitable for applying.

3. the electric pole type infusion monitoring stage: the principle of electric pole type infusion monitoring utilizes two electrodes inserting Murphy type pipe to realize, when there is drop process the centre of electrode time, can produce the signal of interruption, this feature can be monitored this physical quantity of the speed of drop.The means of this monitoring are simply effective, but due to this mode be need to contact with medicine, easily pollution is produced to medicine, and then has influence on the therapeutic effect of venous transfusion, be therefore not suitable for applying.

Although these modes above mentioned can both complete the task of infusion monitoring, but its in sensitivity, the medicinal liquid scope of application, operational approach, production cost etc. more or less there are some problems, so promoting the use of of could not succeeding on medical device market so far.The domestic automatic monitoring problem solving transfusion not yet completely at present, in the RELATED APPLICATIONS that oneself has, its principle is the alarm of mechanical type, optical reflection type and gravity type, volume is large, cost is high, for becoming real product, in sensitivity, accuracy rate, the medicinal liquid scope of application, operational approach and production cost, size, weight etc., there are problems, so none can successfully be introduced to the market so far.

Summary of the invention

This utility model object is the problem being not suitable for applying to solve existing monitoring infusion technology, provides a kind of miniature infrared light electric-type infusion alarm showing dropping speed.This is a cheap infusion alarm, alleviates the burden of patient in drop process, entourage and medical personnel, saves human resources, reduces the accident rate in venous transfusion process, improves the work efficiency of venous transfusion management.

The miniature infrared light electric-type infusion alarm of display dropping speed described in the utility model, it comprises U-shaped photoswitch U2, buzzer U1, PNP triode Q1, on and off switch S1, potentiometer R1, resistance R2 and DC source VCC;

Inside the U-shaped both sides of U-shaped photoswitch U2, relative position is respectively transmitting terminal and receiving terminal, transmitting terminal arranges LED, receiving terminal arranges phototriode VT, U-shaped photoswitch U2 is stuck on the lateral wall of drop calabash ullage, makes LED and phototriode VT lay respectively at the relative both sides of drop calabash;

The anode of LED connects a stiff end of potentiometer R1, colelctor electrode one end of contact resistance R2 and the base stage of PNP triode Q1 simultaneously of phototriode VT; The negative electrode of LED connects the emitter stage of phototriode VT and the negative pole power supply terminal of buzzer U1 simultaneously, and connects the negative pole of DC source VCC by and off switch S1, and ground connection;

The positive pole power supply terminal of buzzer U1 connects the colelctor electrode of PNP triode Q1;

The emitter stage of PNP triode Q1 connects the other end of another stiff end of potentiometer R1 and movable end thereof, resistance R2 simultaneously, and is connected the positive pole of DC source VCC by and off switch S1.

Advantage of the present utility model:

1., when drop is complete, acoustic alarm, buzzer rings, and the old man facilitating ear ineffective observes.

2. volume is little, lightweight, easy to use, safe and reliable;

3. with low cost, be convenient to marketing;

4. not only need not change infusion set but also do not contact medicinal liquid and syringe needle, medicinal liquid is had no effect;

5. applied widely, by fine setting variable resistance, can detect various medicinal liquid.Be applicable to various liquid medicine, blood, nutritional solution, comprise blood plasma and need the medicinal liquid of shading, be applicable to the transparency tube for transfusion of various material.

6. be convenient to expansion, wired or wireless transmission technology can be utilized directly to access in the existing calling system of hospital.

7. use low consumption circuit design, built-in lithium battery, one piece of battery can use more than 1 year, and housing is sturdy and durable.

8. infusion-completed is with regard to automatic alarm, this is patient, family members, nursing staff dream of, need not constantly watch transfusion dose attentively, again subconsciously need not see also will force again and again and oneself see again once, especially evening, patient, the personnel that stay in the ward to look after the patient night and day save worry very much, do not worry having overslept.Patient thoroughly can loosen elimination anxiety and accelerate rehabilitation; Family members, nurse greatly alleviate mental burden, reduce working strength, can nurse the sick better.

9. exempt from tool changing battery, open rear plate battery cover and replaceable battery, use more convenient.

Accompanying drawing explanation

Fig. 1 is the structural representation that the miniature infrared light electric-type infusion alarm of display dropping speed described in the utility model is arranged on stilligout;

Fig. 2 is the circuit theory diagrams of the miniature infrared light electric-type infusion alarm of display dropping speed described in the utility model.

Detailed description of the invention

Detailed description of the invention one: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, show the miniature infrared light electric-type infusion alarm of dropping speed described in present embodiment, it comprises U-shaped photoswitch U2, buzzer U1, PNP triode Q1, on and off switch S1, potentiometer R1, resistance R2 and DC source VCC;

U-shaped photoswitch U2 adopts the principle of infrared light electric-type infusion monitoring, utilize the principle of light strength reduction after medicinal liquid to carry out and measure, at one end installation infrared transmitting terminal of Murphy type pipe, at the other end, receiving terminal is installed, in time having drop process between the two, the sensor of receiving terminal can feel that light intensity dies down, and the change of optical signal is converted into the change of the signal of telecommunication.This monitoring method is functional, and cost performance is high, can measure accurately, and do not contact with medicinal liquid infusion information, and has nothing to do with medicinal liquid character and infusion apparatus, has the very strong suitability.

DC source VCC adopts button power supply.

U-shaped photoswitch U2 employing model is that the photoswitch of H2010 realizes.

The effect of potentiometer R1 is demarcated alarm, can normally work, and meets the requirement of user.In the application process of reality, user also can regulate the sensitivity of alarm by regulator potentiometer R1, alarm can be reported to the police to various medicinal liquid.The effect of PNP triode Q1 drives buzzer U1.

The installation site of infrared infusion alarm as shown in Figure 1.Infrared infusion alarm is stuck in the top of drop calabash liquid level, drop is passed through in the middle of photoswitch, closed electrical source switch S1, start drop, have medicinal liquid to stay, then without buzzer.When dripless is passed through, buzzer U1 reports to the police.In drop calabash, the medicinal liquid of below can put a few minutes, has the sufficient time to allow medical personnel process.Applicable temperature: temperature 0 ~+60 DEG C.

Present embodiment device is easy to use, safe, reliable, not only need not change infusion set but also do not contact medicinal liquid and syringe needle, so do not need know-how in using, there is not safety problem, does not have toxic side effect.Very large facility can be brought to people's life.

Claims

1. show the miniature infrared light electric-type infusion alarm of dropping speed, it is characterized in that, it comprises U-shaped photoswitch U2, buzzer U1, PNP triode Q1, on and off switch S1, potentiometer R1, resistance R2 and DC source VCC;

2. show the miniature infrared light electric-type infusion alarm of dropping speed according to claim 1, it is characterized in that, DC source VCC adopts button power supply.

3. show the miniature infrared light electric-type infusion alarm of dropping speed according to claim 1, it is characterized in that, U-shaped photoswitch U2 employing model is that the photoswitch of H2010 realizes.