CN2452512Y

CN2452512Y - Alarm for venous transfusion

Info

Publication number: CN2452512Y
Application number: CN 00253587
Authority: CN
Inventors: 喻殿有
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-23
Filing date: 2000-12-23
Publication date: 2001-10-10
Anticipated expiration: 2010-12-23

Abstract

The utility model discloses an alarm device for venous transfusion. A hanging ring (7), a hook (8), signal indication screens (3) (4) (5), a switch (6), a time adjusting knob (2), a shift switch (9) are arranged on a box body (1). A circuit board is arranged in the box body (1). A circuit which is composed of a photoelectric coupling circuit, a magnifying driving circuit, a time delay circuit, an acoustic circuit, and an acoustic-optic circuit is arranged on the circuit board. The alarm device can send out secondary alarm signals when transfusion liquid has remanent liquid ranging from 15 ml to 20 ml. The utility model can prompt medical personnel or nursing personnel to pull out needle heads or to replace medicine liquid, and can avoid that the phenomenon of the injection of air when a transfusion bottle is empty because of negligence or the phenomenon of blood return occur.

Description

A kind of venous transfusion attention device

This utility model belongs to the auxiliary device of the venous transfusion when importing medium in the human body, is specially the venous transfusion attention device that can send the acousto-optic warning signal when a kind of venous transfusion is waited to infuse end to people.

Vein drip transfusion is the indispensable link that the patient treats of curing the desease, before every bottle (bag) transfusion input human body finishes, pull out infusion needle or change other medicinal liquid continuation transfusion before all will notifying medical worker or nurse to come bed, its objective is and all to be totally lost the bottle herb liquid, can not fan the air again and inject air or produce the blood back phenomenon and cause adverse consequences.When therefore the medicinal liquid in infusion bottle soon is totally lost, no matter be that medical worker or nurse personnel notice very that this constantly.But the medicinal liquid that under certain situation and condition, fans the air phenomenon also can happen occasionally.To so far, also find no the venous transfusion attention device that can send alarm signal when venous transfusion finishes to people.

The purpose of this utility model provides a kind of venous transfusion attention device, when transfusion soon finishes, this venous transfusion attention device can send alarm signal to people, medical worker or nurse personnel can extract infusion needle or change other medicinal liquid and continue transfusion, just can avoid injecting the generation of air or blood back phenomenon, can avoid the generation of adverse consequences fully owing to fanning the air appears in carelessness.

To achieve these goals, this utility model is to be equipped with thereon in the box body of hook, indicator panel, switch and shift switch, be equipped with circuit board, circuit board is provided with the circuit of being made up of infrared electro coupling circuit, amplification driving circuit, delay circuit, acousto-optic generation circuit and sound generating circuit.

This venous transfusion attention device is hung on the infusion support, under hang drip medicinal liquid bottle, it can be totally lost as yet at every bottle liquid medicine and carry out warning the first time pre-plate when also having certain surplus (15-20ml) earlier, carry out the caution forecast second time again after a period of time (2-5 minute), when messenger pulls out syringe needle or changes medicinal liquid, close swap switch and can stop to warn pre-plate.When transfusion when soon finishing, this attention device can in time send alarm signal, just can stop the generation of injection air or blood back phenomenon because fanning the air appears in carelessness.

Below in conjunction with accompanying drawing this utility model is explained

Fig. 1: external form sketch map of the present utility model

Fig. 2: circuit block diagram of the present utility model

Fig. 3: circuit theory diagrams of the present utility model

Venous transfusion attention device of the present utility model, be be equipped with in the top link 7, lower end be equipped with hook 8, on it and the box body 1 that is equipped with signal indicating screen 3, signal indicating screen 4, signal indicating screen 5, switch 6, timing knob 2, shift switch 9 be built-in with circuit board, in the circuit that is provided with on the circuit board, the fixed point of the anodal connecting terminal K switch of its battery supply 4.5V and charging jack CK ₁, the moving contact of contact switch K connects resistance R ₈An end, buzzer FM ₂And FM ₁, integrated YX of sound generator ₂And YX ₁Positive pole, resistance R ₆An end, resistance R ₉An end, resistance R ₂An end, resistance R ₁An end, resistance R ₈The other end connect light emitting diode D ₃Positive pole, resistance R ₆The other end connect light emitting diode D ₂Positive pole, buzzer FM ₁Negative pole and FM ₂Negative pole connect amplifying triode G respectively ₃With amplifying triode G ₅Colelctor electrode, R ₁The other end connect the infrared photodiode D of photoelectrical coupler ₆Positive pole, D ₆Negative pole connect the negative pole of battery supply, R ₂The other end connect the reception audion G of photoelectrical coupler ₆Colelctor electrode, G ₆Emitter stage connect resistance R ₃, R ₃The other end connect the negative pole of battery supply, make it the photoelectricity coupling circuit and form the closed-loop path; G ₆Emitter stage output be divided into two the tunnel, the one tunnel and connect resistance R ₄, R ₄The other end connect diode D ₄Positive pole, another road connects resistance R ₅An end, R ₅The other end connect the end of potentiometer W, the other end of W connects diode D ₅Positive pole, and form the disjunction gate circuit, D ₄Negative pole connect audion G again ₁Base stage, D ₅Negative pole connect audion G ₄Base stage; G ₄Base stage connect capacitor C again ₃An end and resistance R ₇An end, C ₃The other end and R ₇The other end connect the negative pole and the charging jack CK of battery supply ₂, by resistance R ₅, potentiometer W, capacitor C ₃, resistance R ₇Form delay circuit; The promotion utmost point audion G in forecast loop ₂Emitter stage connect the negative pole of battery supply, G ₂Base stage connect audion G ₁Base stage, G ₂Colelctor electrode connect integrated YX of sound generator ₁Negative pole, amplifying triode G ₃Emitter stage connect integrated YX of sound generator ₁Negative pole, G ₃Base stage also with YX ₁Be connected G ₂Colelctor electrode connect light emitting diode D again ₂Negative pole, capacitor C ₁An end connect D ₄Negative pole and G ₁Base stage, C ₁The other end connect the negative pole of battery supply, form the forecast closed-loop path; Resistance R ₉The other end connect light emitting diode D ₁Positive pole, D ₁Negative pole connect the negative pole of battery supply, form power supply indication loop; Light emitting diode D ₃Negative pole connect the anode of controllable silicon RSC, the control utmost point of controllable silicon RSC connects audion G ₄Emitter stage, the negative electrode of RSC connects the negative pole of battery supply, the anode of RSC also connects integrated YX of sound generator ₂Negative pole, YX ₂Negative pole connect amplifying triode G again ₅Emitter stage, G ₅Base stage connect YX again ₂Thereby, form and warn the loop for the second time.

In the circuit:

C ₁:10μ；C ₂:0.33；C ₃:2200μ；R ₁:2K?1/8W；R ₃:10K?1/8W；R ₄:2K?1/8W；R ₅:47K?1/8W；R ₆:200?1/8W；R ₇:510K?1/8W；R ₃:200?1/8W；R ₉:1K?1/8W；G ₁、G ₂、G ₃、G ₄、G ₅:8050；G ₆:A89；D ₁:BT203；D ₂:BT203；D ₃:BT303；D ₄、D ₅:1N4007；D ₆:206；FM ₁、FM ₂:3-4V∮20；RSC:RC100-6；W:0.5W；K:XKN。

Be that it is hung on the support of transfusion medicine bottle when using this venous transfusion attention device, its hook hangs up the medicinal liquid bottle.It is to adopt the infrared electro coupling technique as primary detecting element, and the code-disc or the dark slide displacement effect that link to each other with hook that the inner place of shift switch are equipped with by the variation of carrying out action of gravity of infusing are converted to the purpose that signal of telecommunication drive circuit works reaches warning with thing amount simulate amount.

Short circuit anode when the power turn-on switch, supplying cell are that 4.5V-4.8V powers to circuit system, power supply indication diode D ₁Through R ₉Current limliting produces 4.5-4.8 mA and flows into Light-Emitting Diode D ₁Make its luminous (green), meanwhile the emission diode D of infrared couplings device ₆The emission infrared light; Dark slide has been blocked the infrared couplings device and has been received audion G under the effect of gravity ₆Must not be in cut-off state by light, amplifying triode G ₁The base stage current potential that equals zero; Drive audion G ₂End G ₂Uce=4.5V, integrated YX of sound generator this moment ₁Can not work buzzer FM ₁With light emitting diode D ₂(yellow) can not luminously can not have sound equipment output, and meanwhile delay circuit does not have electric current to pass through audion G ₄Base stage is ended for " zero " current potential, drives controllable silicon RSC and ends, and the second road sound and light alarm quits work.

When medicinal liquid reduces dark slide gradually also in continuous displacement, the aperture in dark slide moves on to the transmitting tube D of bonder ₆With receiving tube G ₆Between, D ₆By by the end of conducting through R ₂, R ₃Dividing potential drop is sent into audion G ₁Make its amplification, promote audion G ₂Conducting, Uce ≈ 0, the sound generator YX that has been equivalent to short circuit ₁Negative pole make its circuit working by amplifying triode G ₃Promote buzzer FM ₁Work stops behind 7-15S, simultaneously through R ₆Current limliting produces approximate 5mA electric current and makes its yellow light-emitting diode D ₂Luminous and produced the forecast acousto-optic and show and to reach the forecast function that meanwhile other one the tunnel through R ₅With potentiometer W, D ₅To electrolysis condenser C ₃Charging is through the time of 120-300s, because C ₃Voltage rise to 〉=during 0.6V, amplifier tube G ₄Conducting and make controllable silicon RSC conducting, short circuit No. the second sound generator YX ₂With the second road emitting red light diode D ₃Work and produce another kind of acousto-optic, display effect reaches caution for the second time reports to the police, in case owing at the corresponding levelsly adopt the SCR control conducting just can not stop, only turning off power supply and just can stop warning.

About the frame for movement operation principle is to connect dark slide by extension spring to pass to the medicinal liquid bottle by connecting plate and hook again.Every elongation 1mm equals the physics simulate amount of 10ml under action of gravity, its dark slide is limited when gravity restrains greater than 500, when medicinal liquid reduces to a certain degree dark slide rise, when the aperture of dark slide walks between the transmitting tube of photoelectrical coupler and the receiving tube is to report to the police constantly, finishes opto-electronic conversion work.

Claims

1. venous transfusion attention device, it is characterized in that: be equipped with in the top link (7), lower end be equipped with hook (8), on it and the box body (1) that is equipped with signal indicating screen (3) (4) (5), switch (6), timing knob (2), shift switch (9) be built-in with circuit board, in the circuit that is provided with on the circuit board, the fixed point of the anodal connecting terminal K of its battery supply 4.5V and charging jack CK ₁, the moving contact of contact switch K connects resistance R ₈An end, buzzer FM ₂And FM ₁, integrated YX of sound generator ₂And YX ₁Positive pole, resistance R ₆An end, resistance R ₉An end, resistance R ₂An end, resistance R ₁An end, resistance R ₈The other end connect light emitting diode D ₃Positive pole, resistance R ₆The other end connect light emitting diode D ₂Positive pole, buzzer FM ₁Negative pole and FM ₂Negative pole connect amplifying triode G respectively ₃With amplifying triode G ₅Colelctor electrode, R ₁The other end connect the infrared photodiode D of photoelectrical coupler ₆Positive pole, D ₆Negative pole connect the negative pole of battery supply, R ₂The other end connect the reception audion G of photoelectrical coupler ₆Colelctor electrode, G ₆Emitter stage connect resistance R ₃, R ₃The other end connect the negative pole of battery supply, make it the photoelectricity coupling circuit and form the closed-loop path; G ₆Emitter stage output be divided into two the tunnel, the one tunnel and connect resistance R ₄, R ₄The other end connect diode D ₄Positive pole, another road connects resistance R ₅An end, R ₅The other end connect the end of potentiometer W, the other end of W connects diode D ₅Positive pole, and form the disjunction gate circuit, D ₄Negative pole connect audion G again ₁Base stage, D ₅Negative pole connect audion G ₄Base stage; G ₄Base stage connect capacitor C again ₃An end and resistance R ₇An end, C ₃The other end and R ₇The other end connect the negative pole and the charging jack CK of battery supply ₂, by resistance R ₅, potentiometer W, capacitor C ₃, resistance R ₇Form delay circuit; The promotion utmost point audion G in forecast loop ₂Emitter stage connect the negative pole of battery supply, G ₂Base stage connect audion G ₁Base stage, G ₂Colelctor electrode connect integrated YX of sound generator ₁Negative pole, amplifying triode G ₃Emitter stage connect integrated YX of sound generator ₁Negative pole, G ₃Base stage also with YX ₁Be connected G ₂Colelctor electrode connect light emitting diode D again ₂Negative pole, capacitor C ₁An end connect D ₄Negative pole and G ₁Base stage, C ₁The other end connect the negative pole of battery supply, form the forecast closed-loop path; Resistance R ₉The other end connect light emitting diode D ₁Positive pole, D ₁Negative pole connect the negative pole of battery supply, form power supply indication loop; Light emitting diode D ₃Negative pole connect the anode of controllable silicon RSC, the control utmost point of controllable silicon RSC connects audion G ₄Emitter stage, the negative electrode of RSC connects the negative pole of battery supply, the anode of RSC also connects integrated YX of sound generator ₂Negative pole, YX ₂Negative pole connect amplifying triode G again ₅Emitter stage, G ₅Base stage connect YX again ₂Thereby, form and warn the loop for the second time.