CN103212135A - Relieved transfusion system based on photoelectric sensing technology - Google Patents

Relieved transfusion system based on photoelectric sensing technology Download PDF

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Publication number
CN103212135A
CN103212135A CN2013101575162A CN201310157516A CN103212135A CN 103212135 A CN103212135 A CN 103212135A CN 2013101575162 A CN2013101575162 A CN 2013101575162A CN 201310157516 A CN201310157516 A CN 201310157516A CN 103212135 A CN103212135 A CN 103212135A
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China
Prior art keywords
circuit
transfusion
relieved
gear
chip microcomputer
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Pending
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CN2013101575162A
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Chinese (zh)
Inventor
俞斌
唐晓霜
杜昊阳
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Nanjing Post and Telecommunication University
Nanjing University of Posts and Telecommunications
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Nanjing Post and Telecommunication University
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Priority to CN2013101575162A priority Critical patent/CN103212135A/en
Publication of CN103212135A publication Critical patent/CN103212135A/en
Pending legal-status Critical Current

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Abstract

A relieved transfusion system based on photoelectric sensing technology comprises a signal detecting device, a single chip microcomputer signal processing device and an alarm signal wireless emitting and receiving device. An opposite-emitting type photoelectric device is additionally arranged at a dropping bucket of a transfusion device. A photoelectric sensor detecting portion is mainly formed by an opposite-emitting type laser photoelectric sensor, fixing clamps and various liquid drop buffering buckets of the transfusion device. The single chip microcomputer signal processing device is mainly formed by an AT89C52 chip, a reset circuit, an external oscillating circuit, a nixie tube gear input and display circuit and a buzzer circuit. The alarm signal wireless emitting and receiving device is mainly formed by an emitting circuit and a receiving circuit, wherein the emitting circuit is formed by PT2262, F05P and surrounding components of the PT2262 and the F05P, and the receiving circuit is formed by PT2272, J04V and the surrounding components of the PT2272 and the J04V. The photoelectric sensor detecting portion outputs high-low level signals and sends the high-low level signals to the single chip microcomputer signal processing device to process. The processed signals are outputted and respectively connected with the buzzer circuit and the wireless emitting circuit. Three time gear positions are preset and respectively are a 3S gear position, a 6S gear position and a 9S gear position. The gear positions can be selected through a dip switch, and a stop button and a restart button are arranged.

Description

Relieved transfusion system based on photoelectric sense technology
Technical field
The present invention relates to the automatic warning field in the infusion process.
Background technology
Doctor-patient dispute becomes one of social hotspots of people's concern in recent years.Outpatient transfusion room is that more place takes place hospital's medical tangle.In a single day the ambulatory care transfusion is the important component part of current curative activity, and its workload is big, and heavy traffic is trifling, yet goes wrong, just may jeopardize patient's safety.Especially when amount of infusion increased, the generation meeting of outpatient transfusion room dispute also increased thereupon.The factor relevant with the transfusion dispute has many, and the reason of existing medicine self also exists the improper adverse consequences that causes of drug use; The lack experience reason of aspect of existing nursing supervision personal management, also relevant with nurse's self diathesis or the like.Though many in transfusion room doctor-patient dispute contradiction, as long as the link in a lot of work is rigid in checking up, might avoid fully.Change some traditional irrational work habit and patterns, can avoid a lot of mistakes and dispute.
Generally be to be handled by the calling set nurse call by people or the patient oneself that accompany and attend to when hospital ward finishes to patient infusion at present, the people does not note or patient is sleeping if accompany and attend to, and often blood back appears in error easily.
Had the transfusion warning system in the market seldom and be not used widely, for existing scheme, through researching and analysing and practice test, effect is often not fully up to expectations.
The application that has the principle of gravity: no matter be what kind of liquid, final liquid has been played the sack that is left the back and the weight of bottle should be below a certain weight, and for example 50g(one or two), a LOAD CELLS is installed so, be aided with control circuit then, give the alarm, but this degree of accuracy is too poor.
Also have a kind of improvement of such scheme: it is to be dripped speed, surveyed the weight of bottle by the reference rounds spring arrangement by the photoelectric sensor tracer liquid, and by single-chip microcomputer detect in real time drip in speed and the infusion bottle last liquid what, how much last liquid is transferred to computer in speed and the infusion bottle with real-time dripping, drip speed by computer according to algorithm and current real-time drop and calculate drop residue Drain time, the method too relies on the computerized algorithm precision, can operate in theory, actual effect is unsatisfactory, and the batch process cost is not less than 200 yuan.
The scheme that also has by liquid level in the infusion bottle detection or liquid have or not the driving alarm device, this kind equipment generally can not be resisted the interference of visible light and other light, in case there is the interference beyond the pick off to occur, can cause the measurement result deviation bigger, effect is not very desirable.
Aspect warning, some traditional infusion alarm device can only be accomplished prompting patient earlier, just notifies the nurse of logging desk after patient is long-time reactionless, and such time delay has strengthened the potential safety hazard of transfusion, the ageing shortcoming of warning.
Summary of the invention:
The object of the invention: solve in automatic alarm system degree of accuracy in the infusion process and poor in timeliness, the infusion bottle liquid can maximum using, retinue's number.
Technical solution scheme of the present invention is:
For solving the automatic warning in the infusion process, the dropping funnel place of infusion set adds a correlation type electrooptical device, drop low speed in dropping funnel is less than setting speed or to stop drippage (may be that medicinal liquid drips off or causes syringe needle dislocation because of hand exercise, medicinal liquid can't normally be carried) time, photoelectric sensor sends long single high level signal.Photosignal judges that by 51 single-chip microcomputers when surpassing the default time, Single-chip Controlling is sent the signal of warning when long-time high level (being the situation of long-time no liquid drippage), and one tunnel alarm signal drives buzzer by amplifier and sends alarm sound.Another road signal is through wireless module emission wireless signal simultaneously, and the wireless receiving module received signal of far-end is sent the warning reminding signal by lighting the LED lampet.
For satisfying all kinds of crowds' needs, be preset with three time gears, be respectively 3S, 6S and 9S gear, can select by the DIP switch.Be under the normal condition before and after two drop intervals can have 3 maximums selective, in case set the different erroneous judgements that produce when dripping speed.Be provided with stop key simultaneously and restart key.
Totally form by three parts: photoelectric sensor test section, single-chip microcomputer signal processing and alarm signal wireless transmit, receiving unit, as Fig. 1.The photoelectric sensor test section mainly is made up of correlation laser photoelectricity pick off, fixation clamp and all kinds of infusion set drop buffering bucket; The single-chip microcomputer signal processing mainly is made up of with display circuit and buzzer circuit AT89C52 chip, reset circuit, outside oscillating circuit, the input of charactron gear; The receiving circuit that radiating circuit that alarm signal wireless transmit receiving unit mainly is made up of PT2262 and F05P and peripheral devices thereof and PT2272 and J04V and peripheral devices thereof are formed.Photoelectric sensor test section output high-low level signal is sent into single-chip microcomputer signal processing part divisional processing, and treated signal output is switched to buzzer circuit and radio transmitter.
Hardware each several part job order and principle
1. signal detection module---correlation photoswitch and fiber-optic signal amplifier
(1) the correlation photoswitch comprises and structurally is separated from each other and emitter and receptor that optical axis is staggered relatively, and the light that emitter sends directly enters receptor.When object to be detected passed through between emitter and the receptor and blocks light, photoswitch had just produced switching signal.When inspected object when being opaque, the correlation photoswitch is reliable detection pattern.As shown in Figure 2.
(2) fiber amplifier (Optical Fiber Ampler writes a Chinese character in simplified form OFA) is meant and applies in the optical fiber telecommunications line, realizes a kind of new all optical amplifier that signal amplifies.The fiber amplifier technology is exactly to mix the lasing rare earth element of energy in the fibre core of optical fiber, by the direct current light stimulus that laser instrument provides, makes the optical signal that passes through obtain amplifying.Traditional fibre-optic transmission system (FOTS) is to adopt light-electricity-optical regenerative repeater, this trunking influences the stability and the reliability of system, for removing above-mentioned transformation process, directly on light path, signal is amplified transmission, will replace this regenerative repeater with a full gloss mode transmission repeater.
(3) signal amplifying part branch is amplified to the fiber-optic signal that obtains by amplifier the size of requirement.Circuit as shown in Figure 3.
2. single-chip microcomputer signal processing
(1) overview of AT89S52 pin as shown in Figure 4.
(2) clock circuit.The operation of each functional part of single-chip microcomputer all is to be benchmark with the clock control signal, and clock frequency directly influences the speed of single-chip microcomputer, and the quality of clock circuit also directly influences the stability of Single Chip Microcomputer (SCM) system.
This adopts the internal clocking mode among the design, as shown in Figure 5, forms outside oscillation source with quartz oscillator and two chip capacitors.High-gain inverting amplifier in the sheet is external by XTAL1, XTAL2, and the self-excited oscillator of shunt-resonant circuit formation as outer crystal oscillator of the sheet of feedback element and electric capacity composition provides running clock to internal clock circuit.The frequency of agitator depends on the frequency of oscillation of crystal oscillator, and surge frequency range is 1.2-12MHz.When using, engineering adopts 6MHz or 12MHz usually.X1 is 12MHz among the figure, and capacitor C 2, C4 are 30pF, and they constitute the self-excited oscillator of this single-chip microcomputer together.
(3) reset circuit.The RST pin of single-chip microcomputer is (Reset) end that resets.When the single-chip microcomputer agitator is worked, the low level of two machine cycles appears continuing on this pin, just can the realization system reset, make single-chip microcomputer get back to original state.As shown in Figure 6, the design adopts hand-reset, is composed in series with an electric capacity and a 10K resistance, resistance meets VCC, capacity earth, and the RESET foot is connected in the middle of them, RC selects 10uF, and button is connected in parallel on the electric capacity two ends, has just become the button reset circuit, when not powering on, the RST end is for high level, as long as press this button, the RST end is converted to low level, after two machine cycles, single-chip microcomputer just can reset.
(4) buzzer circuit.Buzzer sounding principle is that electric current passes through solenoid, make solenoid produce magnetic field and drive the vibrating diaphragm sounding, therefore need certain electric current could drive it, the electric current of single-chip microcomputer IO pin output is less, the Transistor-Transistor Logic level of single-chip microcomputer output does not drive buzzer basically, therefore will increase the circuit that an electric current amplifies.Amplify the driving buzzer by an audion.When the P2.0 output low level, triode saturation conduction, power supply directly to the buzzer power supply, send it and pipe.As shown in Figure 7.
(5) key circuit: connect pull-up resistor at port, the noise margin that improves the chip input signal strengthens capacity of resisting disturbance, guarantees that preliminary examination state mouth is high level, and is perfectly safe.As shown in Figure 8.
Button can be controlled the initial value and the start and stop of timing by program at P2 mouth place.
3, wireless signal transmission and receiving unit
The radiating portion schematic diagram of wireless signal as shown in Figure 9, signal receive section is as shown in figure 10.
Important component part as function realizes on the basis of detection alarm signal near-end buzzer warning, has increased wireless alarm signal emission and receiver module.Research has also designed a kind of low-cost wireless transceiver module.Adopt F05P sending module, J04V receiver module and PT2262/PT2272 coder and decoder ic, realize the data transmit-receive of radio receiving transmitting module.
PT2262 in the transmitter module receives the warning low level from single-chip microcomputer, through date processing, launch this signal (it is better to be aided with the antenna effect) through F05P, meanwhile the J04V in the receiver module receives alarm signal from transmitter module by adding antenna, and after the transmission data handle to PT2272, drive led lighting and report to the police.
4, software section
The normal operation of the whole device of software control is a key component, and roughly flow chart is as shown in figure 11 for it.
The beneficial effect of the invention:
1, makes the patient who needs transfusion can finish the whole flow process of transfusion alone, reduce family members' number of accompanying the patient, improved the utilization rate at transfusion room seat greatly.And can help the nurse to realize syringe needle dislocation the very first time and situation (particularly infant) that the medicinal liquid that causes does not drip, the nurse deals with problems fast, can help the patient to palliate the agonizing sufferings.
2, because be just not send warning message having the medicinal liquid drippage in dropping funnel when, so if real transfusion finishes, the medicinal liquid in the tube for transfusion will remain little so, medicinal liquid maximizes the use.
3, help the patient of transfusion alone to solve because of changing dressings of causing of carelessness untimely (or other otherwise the problem of drops physic liquor), the patient need not often remove to observe liquid level in the infusion bottle, can transfusion the time have a rest in addition sleeping all do not worry being totally lost because of liquid medicine cause the blood back phenomenon, transfusion becomes safer.
4, can reuse because of this device, dismounting is simple, and is safe and reliable, can reduce the expense of hospital at transfusion this part greatly, not only can reduce nurse's number, and each patient's of tour that the nurse need not be back and forth transfusion situation only needs the queuing system feedack.And make the management of hospital more orderly, can be not in a rush.
Description of drawings
Fig. 1. the system global structure block diagram
Fig. 2. correlation photoswitch sketch map
Fig. 3. signal amplification circuit figure
Fig. 4 .AT89S52 pin figure
Fig. 5. clock circuit
Fig. 6. reset circuit
Fig. 7. buzzer circuit
Fig. 8. key control circuit
The wireless transmitter module circuit of Fig. 9 PT2262+F05P
The wireless receiving module circuit of Figure 10 PT2272+J04V
Figure 11 software section flow chart.
The specific embodiment
Embodiment one, a kind of relieved transfusion system based on photoelectric sense technology, comprise signal supervisory instrument, single-chip microcomputer signal processing apparatus, alarm signal wireless transmitting and receiving device, it is characterized in that, signal supervisory instrument is made up of correlation laser photoelectricity pick off, fixation clamp and all kinds of infusion set drop buffering bucket, correlation laser photoelectricity pick off is made up of correlation photoswitch and fiber-optic signal amplifier, the correlation photoswitch comprises and structurally is separated from each other and emitter and receptor that optical axis is staggered relatively, and fiber amplifier adopts full gloss mode transmission repeater.
On the basis of embodiment one, further limit, the single-chip microcomputer signal processing apparatus mainly is made up of with display circuit and buzzer circuit AT89C52 chip, reset circuit, outside oscillating circuit, the input of charactron gear, and the operation of each functional part of single-chip microcomputer all is to be controlled by internal clocking.
On the basis of embodiment two, further limit, internal clocking is controlled by a plurality of DIP clock switch gears.
On the basis of embodiment three, further limit, DIP clock switch gear, gear are 3s, 6s, 9s gear.
On the basis of embodiment two, further limit, outside oscillating circuit is made up of quartz oscillator and two chip capacitors.
On embodiment two or three or four basis, further limit, buzzer circuit increases an audion on the basis of routine.
On embodiment two or three or four basis, further limit, reset circuit is hand-reset, is composed in series by an electric capacity and a 10K resistance, resistance meets VCC, capacity earth, the RESET foot is connected in the middle of them, and RC selects 10uF, electric capacity two ends button in parallel.
On the basis of embodiment one, further limit, on the basis of detection alarm signal near-end buzzer warning, increase wireless alarm signal emission and receiver module, do not had the F05P of employing sending module, J04V receiver module and PT2262/PT2272 coder and decoder ic.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should be appreciated that; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and the claimed scope of the present invention is defined by its equivalent of appending claims.

Claims (8)

1. relieved transfusion system based on photoelectric sense technology, comprise signal supervisory instrument, single-chip microcomputer signal processing apparatus, alarm signal wireless transmitting and receiving device, it is characterized in that, signal supervisory instrument is made up of correlation laser photoelectricity pick off, fixation clamp and all kinds of infusion set drop buffering bucket, correlation laser photoelectricity pick off is made up of correlation photoswitch and fiber-optic signal amplifier, the correlation photoswitch comprises and structurally is separated from each other and emitter and receptor that optical axis is staggered relatively, and fiber amplifier adopts full gloss mode transmission repeater.
2. the relieved transfusion system based on photoelectric sense technology according to claim 1, it is characterized in that, the single-chip microcomputer signal processing apparatus mainly is made up of with display circuit and buzzer circuit AT89C52 chip, reset circuit, outside oscillating circuit, the input of charactron gear, and the operation of each functional part of single-chip microcomputer all is to be controlled by internal clocking.
3. the relieved transfusion system based on photoelectric sense technology according to claim 2 is characterized in that, internal clocking is controlled by a plurality of DIP clock switch gears.
4. the relieved transfusion system based on photoelectric sense technology according to claim 3 is characterized in that, DIP clock switch gear, gear are 3s, 6s, 9s gear.
5. the relieved transfusion system based on photoelectric sense technology according to claim 2 is characterized in that, outside oscillating circuit is made up of quartz oscillator and two chip capacitors.
6. according to claim 2 or 3 or 4 described relieved transfusion systems, it is characterized in that buzzer circuit increases an audion on the basis of routine based on photoelectric sense technology.
7. according to claim 2 or 3 or 4 described relieved transfusion systems based on photoelectric sense technology, it is characterized in that, reset circuit is hand-reset, be composed in series by an electric capacity and a 10K resistance, resistance meets VCC, capacity earth, and the RESET foot is connected in the middle of them, RC selects 10uF, electric capacity two ends button in parallel.
8. the relieved transfusion system based on photoelectric sense technology according to claim 1, it is characterized in that, on the basis of detection alarm signal near-end buzzer warning, increase wireless alarm signal emission and receiver module, do not had the F05P of employing sending module, J04V receiver module and PT2262/PT2272 coder and decoder ic.
CN2013101575162A 2013-04-28 2013-04-28 Relieved transfusion system based on photoelectric sensing technology Pending CN103212135A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105477741A (en) * 2016-01-26 2016-04-13 南京信息工程大学 Transfusion reminding device and method
WO2017133251A1 (en) * 2016-02-05 2017-08-10 深圳市纳福信息技术有限公司 Infusion device with infusion prompting

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CN201823125U (en) * 2010-10-13 2011-05-11 李常峰 Intravenous transfusion monitoring and network management system based on laser monitoring
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CN202314708U (en) * 2011-11-28 2012-07-11 陕西科技大学 Liquid detection device based on photoelectric detection technology
CN202605410U (en) * 2012-02-14 2012-12-19 包天龙 Intelligent transfusion alarm
CN202662112U (en) * 2012-04-20 2013-01-09 高连辉 Sound-light alarm system
CN203263919U (en) * 2013-04-28 2013-11-06 南京邮电大学 Relieved transfusion system based on photoelectric sensing technology

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2272753Y (en) * 1996-08-12 1998-01-21 程惠民 Transfusion alarm device
CN2376303Y (en) * 1999-05-14 2000-05-03 杨永红 Liquid drop monitor
CN2497798Y (en) * 2001-09-07 2002-07-03 李旭东 Medical electronic infusion meter
CN2631517Y (en) * 2003-08-15 2004-08-11 韦玲 Venous tranfusion wireless controlling and alarming devices
US20100134303A1 (en) * 2008-12-02 2010-06-03 Perkins James T Fluid level detector for an infusion fluid container
CN201524308U (en) * 2009-11-12 2010-07-14 杭州泰樱诺科技有限公司 Automatic infusion pump
CN101856525A (en) * 2010-06-07 2010-10-13 包金明 Medical infusion liquid drop speed monitoring method and device
CN201823125U (en) * 2010-10-13 2011-05-11 李常峰 Intravenous transfusion monitoring and network management system based on laser monitoring
CN202185004U (en) * 2011-08-18 2012-04-11 李秀红 Intelligent transfusion apparatus
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105477741A (en) * 2016-01-26 2016-04-13 南京信息工程大学 Transfusion reminding device and method
WO2017133251A1 (en) * 2016-02-05 2017-08-10 深圳市纳福信息技术有限公司 Infusion device with infusion prompting

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