CN103157155A - Medical liquid drop counter - Google Patents
Medical liquid drop counter Download PDFInfo
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- CN103157155A CN103157155A CN2013100792025A CN201310079202A CN103157155A CN 103157155 A CN103157155 A CN 103157155A CN 2013100792025 A CN2013100792025 A CN 2013100792025A CN 201310079202 A CN201310079202 A CN 201310079202A CN 103157155 A CN103157155 A CN 103157155A
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Abstract
The invention discloses a medicinal liquid drop counter. The medicinal liquid drop counter is characterized by comprising a photoelectric detection circuit, a mono-stability oscillator, the counter, a displayer, a timer and a sound and light alarm circuit. A liquid drop signal is converted into a voltage pulse signal through the photoelectric detection circuit, and the voltage pulse signal is transmitted to the counter to be counted after the mono-stability oscillator performs reshaping and clutter removing for the voltage pulse signal, a counted value is displayed by the displayer, counting time is set by the timer, and when the counting time reaches a set time value, a displayed number value is locked, and the sound and light alarm circuit sends a sound and light signal. The medicinal liquid drop counter has the advantages of being simple in the circuit, small in size, audio-visual in displaying, automatic in alarming when the set time is reached, and convenient to operate.
Description
Technical field
The present invention relates to medical droplet counter, belong to medical apparatus.
Background technology
Medical and nursing work person will control the speed of transfusion according to patient's the state of an illness when giving the patient infusion body, the speed of transfusion is mostly the number of times by manual measurement dropping liquid per minute now, and namely time-consuming error is large again.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of and has that circuit is simple, easy to use, stable performance, has the medical droplet counter of self-timing and Auto-counting.
For achieving the above object, the present invention realizes by following technical scheme:
Medical droplet counter is characterized in that, comprises photoelectric detective circuit, monostable agitator, enumerator, display, intervalometer and sound light alarming circuit.Described photoelectric detective circuit comprises power supply and photoelectric cell, and wherein power supply is given whole circuit supply, and photoelectric cell converts the drop signal of transfusion to voltage pulse signal; Described monostable agitator is connected with described photoelectric detective circuit, with the signal shaping roguing ripple of photoelectric switching circuit; Described enumerator is connected with the monostable agitator, and the signal of monostable agitator output is counted, and outputs to simultaneously described display and carries out the numerical value demonstration; Described intervalometer is connected with described enumerator, is used for setting gate time, and gate time has arrived setting-up time and stopped counting and keeping show value; Described sound light alarming circuit is connected with intervalometer, output alarm signal when gate time has arrived setting-up time, and alarm signal comprises sound and light.
The invention has the beneficial effects as follows, due to adopted photoelectric detective circuit to drop automatically detect, Auto-counting and the intervalometer of enumerator set gate time, and setting-up time is to sending sound and light alarm, easy to operate, intuitive display, then automatic sound-light alarm, simple to operate.
Description of drawings
Fig. 1 is circuit block diagram of the present invention
Fig. 2 is circuit theory diagrams of the present invention
In accompanying drawing, the main mark implication is as follows:
1, photoelectric detective circuit 2, monostable agitator 3, intervalometer
4, enumerator 5, display 6, sound light alarming circuit.
The specific embodiment
The present invention is described in further detail below in conjunction with diagram and specific embodiment.
Fig. 1 is the circuit block diagram of the medical droplet counter of the present invention, comprises photoelectric detective circuit 1, monostable agitator 2, intervalometer 3, enumerator 4, display 5, sound light alarming circuit 6.Photoelectric detective circuit 1, after converting the drop signal of infusing to voltage pulse signal, after delivering to monostable agitator 2 shaping roguing ripples, the pulse signal of outputting standard, then this pulse signal outputs to display 5 and carries out the numerical value demonstration through enumerator 4 pulse signals countings; Intervalometer 3 is connected with enumerator 4, be used for setting gate time, enumerator 4 stops counting and being in the lock state after gate time has arrived setting-up time, and display 5 keeps show values at this moment, and intervalometer 3 is controlled sound light alarming circuits 6 and sent the sound and light alarm signal simultaneously.
Fig. 2 is the circuit theory diagrams of medical droplet counter, and described photoelectric detective circuit 1 comprises dc source DC, K switch, slot optical coupling T, resistance R 1, resistance R 2, resistance R 3 and capacitor C 1.Wherein slot optical coupling T is comprised of infraluminescence pipe T1 and phototriode T2; K switch is battery main switch, and dc source DC provides direct current 5V power supply for droplet counter, particularly, the negative pole end ground connection of dc source DC, positive terminal is connected with an end of K switch, and the other end of K switch is connected with an end of resistance R 1; The circuit that infraluminescence pipe T1, phototriode T2, resistance R 1, resistance R 2, resistance R 3 and capacitor C 1 form converts the quantity of drop to pulse signal, particularly, one end of resistance R 1 is connected with the end that an end of resistance R 2 is connected with resistance R respectively, the other end of resistance R 1 is connected positive pole and is connected with infraluminescence pipe T1, the minus earth of infraluminescence pipe T1, the other end of resistance R 2 is connected with the end that the colelctor electrode of phototriode T2 is connected with capacitor C respectively, the grounded emitter of phototriode T2, the other end that the other end of resistance R 3 is connected with capacitor C connects.
Described monostable agitator 2 comprises resistance R 4, capacitor C 2, button SB2-2, capacitor C 4 and IC1.Wherein button SB2-2 is the count enable button, and the band auto-lock function presses the button counting beginning after SB2-2; IC1 is NE555; Resistance R 4, capacitor C 2, capacitor C 4 and IC1 form the monostable oscillating circuit, with after the pulse signal shaping roguing ripple of photoelectric detective circuit 1 output by the pulse signal of the 3 end outputting standards of IC1.Particularly, one end of resistance R 4 is connected an end and is connected with R3, the other end of resistance R 4 is connected with the end that 6 ends of IC1 are connected with capacitor C respectively, the other end ground connection of capacitor C 2, the end of button SB2-2 connects capacitor C 1, and the other end of button SB2-2 connects 2 ends of IC1, capacitor C 4 is attempted by 5 ends and 1 end of IC1,6 ends of IC1 with are connected end and connect, the 1 end ground connection of IC1,4 ends of IC1 with are connected an end connection of being connected with resistance R after end connects.
Described enumerator 4 comprises button SB1, capacitor C 3, resistance R 5, IC3, IC4 and IC5, and wherein IC3, IC4 and IC5 model are all CD40110, forms three decimal addition enumerators, and IC3 is low order end, and IC5 is high order end; Wherein button SB1 is SR, presses the button the zero clearing of SB1 hour counter.Particularly, 9 ends of IC3 are connected 3 ends and are connected with IC1,10 ends of IC3 are connected 9 ends and are connected with IC4,10 ends of IC4 are connected 9 ends and are connected with IC5, IC3, IC4 are connected with IC5 and are connected an end with SR SB1 with an end of resistance R 5 respectively after 5 ends connect and are connected, the other end ground connection of resistance R 5, the other end of button SB1 is connected an end and is connected with K, capacitor C 3 and button SB1 also connect, and 4 ends of IC3, IC4 and IC5 are ground connection respectively, and IC3, IC4 are connected with IC5 to be connected with IC2 after 6 ends connect and 3 are connected.
Described display 5 comprises G1, G2, G3, resistance R 7～R27, and the numeral that consists of drop shows.Wherein G1, G2, G3 model are BS241, consist of three digit display, particularly, terminal a, the b of G1, c, d, e, f, g are connected 1,15,14,13,12,3,2 terminals by resistance R 7～R13 respectively and are connected with IC3, terminal a, the b of G2, c, d, e, f, g are connected 1,15,14,13,12,3,2 terminals by resistance R 14～R20 respectively and are connected with IC4, terminal a, the b of G3, c, d, e, f, g are connected 1,15,14,13,12,3,2 terminals by resistance R 21～R27 respectively and are connected with IC5.The com end ground connection of G1, G2 and G3.
Described intervalometer 3, comprise button SB2-1, resistance R 6, potentiometer Rw, capacitor C and IC2, wherein IC2 is NE555, button SB2-1 is the start by set date button, begins timing after pressing the button SB2-1, when arriving setting-up time, the positive pulse of the 3 ends outputs of IC2 is delivered to IC3, IC4 in enumerator 4 and 6 ends of IC5 simultaneously, counting is stopped and latch data, and this moment is readable goes out number of drops, and button SB2-1 and button SB2-2 are the interlock button; Potentiometer Rw is the high accuracy multiturn potentiometer; Resistance R 6, potentiometer Rw, capacitor C and IC2 consist of timing circuit, regulator potentiometer Rw scalable timing.Particularly, resistance R 6 and potentiometer Rw also connect, resistance R 6 is connected an end and is connected an end with K switch and connects with potentiometer Rw, resistance R 6 is connected the other end and is connected with IC2 and 2 connects with potentiometer Rw, button SB2-1 and capacitor C are attempted by 1 end and 2 ends of IC2, the 1 end ground connection of IC2, and 2,6,7 ends of IC2 connect, 4,8 ends of IC2 are connected an end and are connected with K switch, 3 ends of IC2 IC3, the IC4 in sum counters 4 respectively are connected 6 ends and are connected with IC5.
Described sound light alarming circuit 6 comprises resistance R 28, light emitting diode D, audio amplifier BL, and wherein resistance R 28 is current-limiting resistance, and light emitting diode D and audio amplifier BL form sound light alarming circuit, timing then, light emitting diode D is luminous, audio amplifier BL sounding.Particularly, be attempted by 3 ends and the ground of IC2 after resistance R 28 and light emitting diode D serial connection, audio amplifier BL is attempted by 3 ends and the ground of IC2.
The above carries out exemplary description to invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as the non-substantial improvement of having adopted method design of the present invention and technical scheme to carry out; perhaps without improving, method design of the present invention and technical scheme are applied directly to other occasions, all within protection scope of the present invention.
Claims (4)
1. a medical droplet counter, is characterized in that: comprise photoelectric detective circuit (1), the monostable agitator (2) that is connected with described photoelectric detective circuit (1) output, the enumerator (4) that is connected with described monostable agitator (2) output, the display (5) that is connected with described enumerator (4) output, the intervalometer (3) that is connected with described enumerator (4), export with described intervalometer (4) sound light alarming circuit (6) that is connected.
2. medical droplet counter according to claim 1, it is characterized in that: described monostable agitator (2), comprise resistance R 4, capacitor C 2, button SB2-2, capacitor C 4 and IC1, wherein button SB2-2 is the count enable button, the band auto-lock function, the one end connects capacitor C 2, and the other end connects 2 ends of IC1, and IC1 is NE555.
According to claim 1 with medical droplet counter claimed in claim 2, it is characterized in that: described intervalometer (3), comprise button SB2-1, resistance R 6, potentiometer Rw, capacitor C and IC2, wherein IC2 is NE555, button SB2-1 and button SB2-2 are the interlock button, potentiometer Rw is the high accuracy multiturn potentiometer, 3 ends of IC2 respectively with enumerator 4 in IC3, IC4 be connected 6 ends with IC5 and be connected.
4. medical droplet counter according to claim 1, it is characterized in that: described sound light alarming circuit (6), comprise resistance R 28, light emitting diode D and audio amplifier BL, be attempted by 3 ends and the ground of IC2 after resistance R 28 and light emitting diode D serial connection, audio amplifier BL is attempted by 3 ends and the ground of IC2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100792025A CN103157155A (en) | 2013-03-13 | 2013-03-13 | Medical liquid drop counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100792025A CN103157155A (en) | 2013-03-13 | 2013-03-13 | Medical liquid drop counter |
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| CN103157155A true CN103157155A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100792025A Pending CN103157155A (en) | 2013-03-13 | 2013-03-13 | Medical liquid drop counter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9575000B2 (en) | 2014-01-22 | 2017-02-21 | Shivani Scientific Industries Private Limited | Drop detection of human follicle fluid in a test tube |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201379854Y (en) * | 2009-05-05 | 2010-01-13 | 中国人民解放军南京军区南京总医院 | Instrument for measuring the dropping speed of transfusion |
| CN202069949U (en) * | 2011-05-13 | 2011-12-14 | 中国人民解放军南京军区杭州疗养院海勤疗养区 | Infrared transfusion dripping-speed monitor |
| CN102397601A (en) * | 2010-09-15 | 2012-04-04 | 张扬 | Wireless sensor network-based venous transfusion monitoring system |
| CN203107861U (en) * | 2013-03-13 | 2013-08-07 | 南京化工职业技术学院 | Medical liquid drop counter |
-
2013
- 2013-03-13 CN CN2013100792025A patent/CN103157155A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201379854Y (en) * | 2009-05-05 | 2010-01-13 | 中国人民解放军南京军区南京总医院 | Instrument for measuring the dropping speed of transfusion |
| CN102397601A (en) * | 2010-09-15 | 2012-04-04 | 张扬 | Wireless sensor network-based venous transfusion monitoring system |
| CN202069949U (en) * | 2011-05-13 | 2011-12-14 | 中国人民解放军南京军区杭州疗养院海勤疗养区 | Infrared transfusion dripping-speed monitor |
| CN203107861U (en) * | 2013-03-13 | 2013-08-07 | 南京化工职业技术学院 | Medical liquid drop counter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9575000B2 (en) | 2014-01-22 | 2017-02-21 | Shivani Scientific Industries Private Limited | Drop detection of human follicle fluid in a test tube |
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Application publication date: 20130619 |