CN202892549U - Venous infusion monitoring instrument and management system in hospital - Google Patents

Venous infusion monitoring instrument and management system in hospital Download PDF

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Publication number
CN202892549U
CN202892549U CN 201220564123 CN201220564123U CN202892549U CN 202892549 U CN202892549 U CN 202892549U CN 201220564123 CN201220564123 CN 201220564123 CN 201220564123 U CN201220564123 U CN 201220564123U CN 202892549 U CN202892549 U CN 202892549U
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CN
China
Prior art keywords
module
circuit
monitoring instrument
hospital
intravenous transfusion
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CN 201220564123
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Chinese (zh)
Inventor
李宇明
温明峰
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江门市五邑中医院
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Priority to CN 201220564123 priority Critical patent/CN202892549U/en
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Publication of CN202892549U publication Critical patent/CN202892549U/en

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Abstract

The utility model discloses a venous infusion monitoring instrument a management system in a hospital. The management system is composed of the venous infusion monitoring instrument, a wireless receiver, a nurse station computer, a data server and a hand-held personal digital assistant (PDA). According to the management system, weight-lightening trend, wireless trend, integration and totalization of monitoring and management of venous infusion are achieved. The management system can be compatible with existing information in the hospital, warning information can be timely received when abnormity occurs, processing is conducted on the abnormity, so that working intensity of medical working staff is effectively relieved, and nursing quality is improved. The more important is that all-day monitoring on conditions and physiological parameters of patients can be achieved, and once a pathogenetic condition changes, data for emergency processing and treatment can be supplied for doctors. Worthy additional information in the process of disease development or healing can be supplied for diagnoses and treatment and research by clinical medical care personnel, and therefore, the medical care personnel can conveniently know pathogenetic conditions, and make scientific and accurate diagnoses and treatment.

Description

A kind of hospital intravenous transfusion monitoring instrument administrating system
Technical field
This utility model relates to medical management system, a kind of hospital intravenous transfusion monitoring instrument administrating system.
Background technology
Development along with the modern medicine technology, especially the development of electronic technology, computer technology and Digital Signal Processing, monitor controller realizes that as hospital the equipment of clinical treatment monitoring is widely used, and becomes gradually in all types modern hospital requisite a kind of armarium in the clinical monitoring monitoring.The monitoring parameter of modern medicine monitor has reflected the physiology sign of monitor patients in the monitoring process, and the conversion of medical signals information, extraction and Treatment Analysis are its keys that successfully realizes.Along with day different renewal and development and the user's request of product is tending towards multiformity gradually, realize system's lightness, wireless penetration, integrated, development trend that synthesization becomes monitor controller.Simultaneously, along with the development of network communications technology, monitor will become inevitable to networking, the development of long-range aspect.System makes the doctor can read in real time relevant clinical information and remote monitoring by network system and interface, realizes real clinical information integration.This has not only effectively alleviated medical personnel's medical pressure, saves medical expense, can also make patient and family members thereof obtain liberation, to patient's mental health with healthy special benefit arranged all.This shows that the development prospect of modern medicine monitor will be very wide.
Abroad to the development of intravenous infusion monitor early, such as Japan, the countries such as the U.S. and Germany have just carried out the development of this respect the 80's ends of last century, now popular on the market is external product mostly, type is various, better performances, OT-601 type infusion pump (control accuracy is 10%) such as Japanese JMS Co., Ltd., the Gemini PC-2TX of USA I/M ED company type transfusion device, the Multifuse type that also has German Bei Lang (B|BRAUN) company, Perfusor Compact type (control accuracy can reach 2%), also there is corresponding product in Israel, model is numerous, better performances.But these products only have some large hospitals to introduce at home, and are expensive because of it, are mainly used in the critical patient.Domestic development to infusion set is started late, and mostly begins one's study in 90 mid-nineties 90s, some domestic venous transfusion control device is also arranged, such as the ZNB series of products of Beijing Ke Lifeng on the market.But on the whole, kind is less, has the less of independent intellectual property right, and the key technology research and development ability has much room for improvement.Because accurately transfusion only just has practical significance to minority especial patient and special medicine, and under the standard operation, transfusion is blocked, bubble is sneaked into is avoidable.Therefore in infusion process, the warning problem is finished in transfusion just becomes the most problems of concern of people, so that being developed into of alarm finished in a transfusion heat subject in recent years.According to recent inquiry to State Intellectual Property Office's patent information, the alarm patented technology is finished at present existing multiple transfusion, but because each patented technology more or less all exists such or such defective, problems such as safety, reliability, cost and convenient degree of operation causes the patent that really is converted into product also few.It is mostly not ideal that situation is promoted in its clinical practice, its reason may be just with the client to the convenience of the safety of these technology or product itself, reliability, operation whether and the approval of the factor such as price relevant.As a kind of medical apparatus and instruments, safety, reliability are the bases, only spread to the product that each transfusion patient just is of practical significance as a kind of, easy to use and enough low price be again a kind of basic demand, so, even if this product safety, reliability have obtained abundant assurance, if but do not have easy operation and enough low price to support, it is impossible wanting to promote smoothly.
The utility model content
For addressing the above problem, the purpose of this utility model is to provide not only popularization with low cost, easy, and safety, reliability all guaranteed a kind of hospital intravenous transfusion monitoring instrument and management system thereof.
The technical scheme that the invention for solving the technical problem adopts is:
A kind of intravenous transfusion monitoring instrument, described intravenous transfusion monitoring instrument comprises drop detection module, level detection module, data disaply moudle, key-press module, sound and light alarm module, power module and wireless series communication module and Single-chip Controlling unit, and described drop detection module, level detection module, data disaply moudle, key-press module, sound and light alarm module, power module and wireless series communication module are connected with the Single-chip Controlling unit and are connected.
A kind of hospital intravenous transfusion monitoring management system, described hospital intravenous transfusion monitoring management system comprises:
The intravenous transfusion monitoring instrument, described intravenous transfusion monitoring instrument comprises drop detection module, level detection module, data disaply moudle, key-press module, sound and light alarm module, power module and wireless series communication module and Single-chip Controlling unit, and described drop detection module, level detection module, data disaply moudle, key-press module, sound and light alarm module, power module and wireless series communication module are connected with the Single-chip Controlling unit and are connected;
Wireless receiver, described wireless receiver is connected with wireless series communication module radio communication in the intravenous transfusion monitoring instrument, receives the detection information from the intravenous transfusion monitoring instrument;
The nurse station computer is connected with wireless receiver, obtains the detection data message that wireless receiver receives;
Data server is used for storage and detects data message, and described data server is connected with the nurse station computer;
Hand-held PDA; Described hand-held PDA connects nurse station computer and/or data server by wireless network.
Described intravenous transfusion monitoring instrument is arranged on each transfusion device, for detection of the transfusion state of transfusion device, and it is monitored and to data server wireless transmission information.Wherein level detection module and drop detection module adopt the realization of non-contact detection technology to the collection of transfusion device liquid level, wherein liquid drop speed shows by data disaply moudle, when causing liquid level, accident is lower than default height, when perhaps actual liquid drop speed is too fast or excessively slow, level detection module and drop detection module send alarm signal to the Single-chip Controlling unit, the sound and light alarm module is reported to the police, and carry out radio alarming by serial ports wireless communication module wireless signal emission, after wireless receiver receives effective alarm signal, the nurse station computer gathers alarm signal by the data acquisition end, and warning message is saved in the data server.
Described hand-held PDA is palm PC, be used for carrying out real-time operation for the nurse, have good man machine operation interface, hand-held PDA is connected with nurse station computer and/or data server, and the periodic refreshing data, hand-held PDA will report to the police until the nurse makes response after detecting warning message.The nurse also can send instruction and operate the intravenous transfusion monitoring instrument by hand-held, as reads current residual transfusion volume, reads number of infusion drops etc.
Further, described Single-chip Controlling unit adopts microcontroller AT89C52 as the core of control and date processing, adopt low-power consumption hardware circuit design and microcontroller chip, for monitoring infusion provides the platform support, and can carry out Function Extension to system as required.
Further, described drop detection module comprises iraser pipe phototriode and the drop detection circuit corresponding with the iraser pipe with being arranged at the Murphy type tube opposite side that is arranged at infusion set Murphy type tube one side, and described phototriode is connected with the Single-chip Controlling unit by the drop detection circuit.The drop detection module is utilized the projection principle of light to carry out drop and is measured.Adopt the combination of iraser pipe and phototriode, iraser pipe and phototriode are faced respectively the vertical two ends that place Murphy type tube, utilize drop through out-of-date scattering and the refraction action that optical signal is occured, realize detection to drop by the power that detects photosensitive triode receiving optical signals.The scattering and the refraction action that occur when drop process Murphy type tube are larger on the optical signal impact, therefore can realize the effective detection to drop, simultaneously radiative penetration power is stronger, highly sensitive, can adapt to the normal operation under the wet weather, can effectively realize the anti-interference of environment to external world.
Further, the infrared light that described iraser pipe sends is the short-term infrared light of 2 ~ 3mm, and the normal detection of energy realization system under certain shake still can detect when transfusion device moves or be unstable.
Further, described drop detection circuit comprises the first operational amplification circuit and the first voltage comparator circuit, the outfan of described phototriode is connected to the input of the first operational amplification circuit by capacitance, and the outfan of the first operational amplification circuit is connected to the data input pin of Single-chip Controlling unit by the first voltage comparator circuit.The voltage signal of the signal output part of described phototriode is by amplifying, make comparisons by the first voltage comparator circuit and a reference voltage through capacitance filtering, the first operational amplification circuit, because drop is equivalent to pulse signal through the out-of-date signal intensity of phototriode signal output part that causes, therefore the processing by pulse signals can realize the processing to the drop signal, the design capacity of resisting disturbance of this circuit is strong, stability is high, can realize the effective processing to the drop signal.
Further, described level detection module comprises the infrarede emitting diode that is arranged at Murphy type tube one side, is arranged at the Murphy type tube opposite side infrared receiving tube corresponding with infrarede emitting diode and liquid level detection circuit, described infrared receiving tube is connected with liquid level detection circuit, and the outfan of described liquid level detection circuit is connected with the input of Single-chip Controlling unit.The level detection module utilizes the principle of Photoelectric Detection to carry out level detection, adopt the combination of infrared tube, infrared transmitting tube and infrared receiving tube are faced respectively the vertical two ends that place Murphy type tube, because the refractive index of liquids and gases is different, so that the light of same light source produces the angle difference of refraction when no liquid is arranged, the power that makes receiving tube receive optical signal is also different, therefore can realize detection to liquid level by detection signal in the variation of liquid level place power.
Further, described key-press module is matrix keyboard.Adopt matrix keyboard can effectively reduce the number that takies Single-chip Controlling unit I/O mouth, save the interface number of Single-chip Controlling unit.
Further, described data disaply moudle comprises 24 charactrons and serial control core, and described Single-chip Controlling unit is connected with charactron by serial control core.Because this utility model medium-sized vein transfusion monitoring instrument only need to carry out the demonstration of related data and parameter, if adopt the liquid crystal display mode block cost higher, can not only effectively reduce cost and adopt charactron to show, and be beneficial to the light-duty design of system.
Further, the wireless series communication module adopts the STR-30 wireless module.Described STR-30 wireless module adopts the mode of frequency regulation of GFSK, has when high capacity of resisting disturbance carries out intelligent data control to need not to work out unnecessary program, and its message transmission rate is high simultaneously, reliability is high, failure rate is low, cost performance are high.
Further, described sound and light alarm module comprises audible alarm module and light alarm module, described audible alarm module comprises PNP audion and buzzer, described Single-chip Controlling unit is connected on the base stage of PNP audion, described PNP transistor collector is connected with power supply, and the emitter stage of PNP audion is connected with buzzer; Described smooth alarm module comprises alarm lamp and dropping resistor, and Single-chip Controlling unit, dropping resistor, alarm lamp and ground wire are connected and are in succession connected.
Further, described intravenous transfusion monitoring instrument also comprises the wired alarming circuit, described wired alarming circuit comprises on-off circuit and relay, the outfan of described Single-chip Controlling unit links to each other with the relay signal input by on-off circuit, and the output control terminal of described relay is connected with the bedside calling system.The intravenous transfusion monitoring instrument can be connected with the existing head of a bed calling system of hospital in this design, realized the wired alarming of system, when wireless network lost efficacy or received interference, still can report to the police by head of a bed calling system, improve the reliability of system, reduced potential potential safety hazard.
Further, during the operation of intravenous transfusion monitoring instrument, the Single-chip Controlling unit at first carries out the initialization of parameter, and wait operator parameters, when parameter after setting completed, liquid drop speed and the liquid level position of infusion set are monitored respectively by drop detection module and level detection module in the Single-chip Controlling unit, and send liquid drop speed and liquid level position information by the serial wireless communication module to wireless receiver, wireless receiver is processed the information transmission to the nurse station computer, the nurse station computer is preserved transfer of data to the data server of processing.
Further, described hand-held PDA comprises processor, display screen, bar code contrast means, radio receiving transmitting module and alarm module, and described display screen, bar code contrast means, radio receiving transmitting module and alarm module are connected with processor respectively.
The beneficial effects of the utility model are: a kind of hospital intravenous transfusion monitoring instrument administrating system that this utility model adopts, realized the lightness of intravenous transfusion monitoring management, wireless penetration, integrated and synthesization, but the detection data of a plurality of intravenous transfusion monitoring instrument of nurse station computer real-time collecting, owing to adopt the mode of wireless network transmissions, can effectively save the expense of line arrangement, patient is as long as can detect whenever and wherever possible in the scope that wireless network covers, do not need the fixedly position of infusion set, its autgmentability and practicality are good, this utility model can be realized compatible with hospital's existing information, and medical personnel located can be monitored each patient's transfusion situation by hand-held PDA, when abnormal, can in time receive warning message and processing, can effectively alleviate the working strength of medical personnel located, improve nursing quality; The more important thing is that it can realize the all-weather monitor to patient's situation and physiological parameter, in case change of illness state appears, and can be for doctor's behaviours emergency processing and the foundation for the treatment of; Also can be simultaneously clinical medical and nursing personnel's diagnoses and treatment and research provide the patient disease develop or agglutination in valuable additional information, be conducive to medical personnel and better understand the state of an illness, the science of making is diagnosed accurately and is treated.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and example.
Fig. 1 is the block diagram of system of this utility model hospital intravenous transfusion monitoring management system;
Fig. 2 is the system structure sketch map of this utility model intravenous transfusion monitoring instrument;
Fig. 3 is the drop detection sketch map of this utility model drop detection module;
Fig. 4 is the circuit theory diagrams of this utility model drop detection circuit;
Fig. 5 is the level detection sketch map of this utility model level detection module;
Fig. 6 is the circuit theory diagrams of this utility model liquid level detection circuit;
Fig. 7 is the circuit theory diagrams of this utility model key-press module;
Fig. 8 is the circuit theory diagrams of this utility model data disaply moudle;
Fig. 9 is the circuit theory diagrams of this utility model audible alarm module;
Figure 10 is the circuit theory diagrams of this utility model light alarm module;
Figure 11 is the circuit theory diagrams of this utility model wired alarming circuit;
Figure 12 is the circuit theory diagrams of this utility model Single-chip Controlling unit;
Figure 13 is the circuit theory diagrams of this utility model power module;
Figure 14 is the high-level schematic functional block diagram of this utility model Single-chip Controlling unit;
Figure 15 is this utility model system main program flow chart;
Figure 16 is this utility model system drop signal waveforms;
Figure 17 is this utility model drop detection flow chart;
Figure 18 is this utility model system monitoring infusion flow chart;
Figure 19 is the structured flowchart of the hand-held PDA of this utility model;
Figure 20 is the use flow chart of the hand-held PDA of this utility model;
The specific embodiment
With reference to Fig. 1-Figure 20, a kind of hospital intravenous transfusion monitoring instrument of the present utility model and management system thereof, vein transfusion monitoring system comprises intravenous transfusion monitoring instrument 1, wireless receiver 2, nurse station computer 3, data server 4 and hand-held PDA5.
Described intravenous transfusion monitoring instrument 1 comprises drop detection module 11, level detection module 12, data disaply moudle 13, key-press module 14, sound and light alarm module 15, power module 16 and wireless series communication module 17 and Single-chip Controlling unit 18, and described drop detection module 11, level detection module 12, data disaply moudle 13, key-press module 14, sound and light alarm module 15, power module 16 and wireless series communication module are connected and are connected with Single-chip Controlling unit 18 respectively.Described wireless receiver 2 is connected with wireless series communication module 17 radio communications in the intravenous transfusion monitoring instrument 1, receives the detection information from intravenous transfusion monitoring instrument 1.Described nurse station computer 3 is connected with wireless receiver 2, obtains the detection data message that wireless receiver 2 receives.Data server 4 is used for storage and detects data message, and wherein data server 4 is connected with nurse station computer 3.Described hand-held PDA5 connects nurse station computer 3 and/or data server 4 by wireless network.
Described intravenous transfusion monitoring instrument 1 is arranged on each transfusion device, for detection of the transfusion state of transfusion device, and it is monitored and to data server 4 wireless transmission information.Wherein level detection module 12 and drop detection module 11 adopt the realization of non-contact detection technology to the collection of transfusion device liquid level, wherein liquid drop speed shows by data disaply moudle 13, when causing liquid level, accident is lower than default height, when perhaps actual liquid drop speed is too fast or excessively slow, level detection module 12 and drop detection module 11 be 18 transmission alarm signals to the Single-chip Controlling unit, sound and light alarm module 15 is reported to the police, and carry out radio alarming by serial ports wireless communication module wireless signal emission, after wireless receiver 2 receives effective alarm signal, nurse station computer 3 gathers alarm signal by the data acquisition end, and warning message is saved in the data server 4.
Described hand-held PDA5 is palm PC, be used for carrying out real-time operation for the nurse, has good man machine operation interface, hand-held PDA5 is connected with nurse station computer 3 and/or data server 4, and the periodic refreshing data, hand-held PDA5 will report to the police until the nurse makes response after detecting warning message.The nurse also can send instruction and operate intravenous transfusion monitoring instrument 1 by hand-held, as reads current residual transfusion volume, reads number of infusion drops etc.
Wherein intravenous transfusion monitoring instrument 1 adopts microcontroller AT89C52 as the core of control and date processing, adopts low-power consumption hardware circuit design and microcontroller chip, for monitoring infusion provides the platform support, and can carry out Function Extension to system as required.
Described drop detection module 11 is piths of system design, and can detect exactly drop be to calculate transfusion volume, residual volume, the isoparametric key of transfusion speed, also is the main reference standard of systematic function and reliability.
Native system adopts the photoelectric detecting technology realization to the measurement of drop, described drop detection module 11 comprises phototriode 112 and the drop detection circuit that the iraser pipe 111 that is arranged at infusion set Murphy type tube 6 one sides is corresponding with being arranged at Murphy type tube 6 opposite sides and iraser pipe 111, and described phototriode 112 is connected with Single-chip Controlling unit 18 by the drop detection circuit.With reference in the drop detection sketch map shown in Figure 3, the light of iraser pipe 111 emissions sees through Murphy type tube 6 and projects on the photosurface of phototriode 112, when not having the drop drippage, the illuminance that phototriode 112 receives is maximum, the photogenerated current that produces is also maximum, and this moment, phototriode 112 signal output part voltages were low level; When the drop drippage is arranged, owing to scattering and the refraction action of drop to light, the illuminance that projects on the phototriode 112 will descend, thereby the electric current of photosensitive tube photoproduction is descended, and this moment, phototriode 112 signal output part voltages were high level.Therefore can realize detection to drop by the variation that detects phototriode 112 signal output part voltage signals.
This utility model drop detection circuit is with reference to shown in Figure 4, described drop detection circuit comprises the first operational amplification circuit 113 and the first voltage comparator circuit 114, the outfan of described phototriode 112 is connected to the input of the first operational amplification circuit 113 by capacitance C1, and the outfan of the first operational amplification circuit 113 is connected to the data input pin of Single-chip Controlling unit 18 by the first voltage comparator circuit 114.Capacitance C1 plays the logical effect that exchanges of stopping direct current in the circuit, in system, there is not drop through out-of-date, phototriode 112 signal output parts output perseverance is the direct current signal of high level, because capacitance C1 is to the iris action of direct current signal, cause the positive input terminal of the first operational amplification circuit 113 not have the signal input, through the first voltage comparator circuit 114 carry out voltage ratio after, OUT1 end output this moment perseverance is+level signal of 5V; When drop being arranged through out-of-date, the direct current signal of phototriode 112 signal output part output low levels, because the variation of signal output part signal is equivalent to the generation of pulse signal in the process of drop process, capacitance C1 to the conducting effect of AC signal so that this pulse signal can safety first operational amplification circuit 113 that enters carry out high-gain, low noise amplification, this moment the amplifier out output signal signal enough by force.The first voltage comparator circuit 114 its negative input ends provide reference voltage by resistance R 8, R9, when the signal of U1 output reaches the first voltage comparator circuit 114 normal phase input end, two input terminal voltages compare, and this moment, OUT1 end output signal was low level.Be connected with the OUT1 end by Single-chip Controlling unit 18 INT0 ports, the detection to OUT1 end trailing edge signal can realize the accurate detection to the drop signal.
In this drop detection circuit, in order to improve the sensitivity of system's drop detection, must make the variation of phototriode 112 signal output part voltage signals reach maximization as far as possible, also be provided with the first divider resistance R2 on the connection line of phototriode 112 signal output parts and the first operational amplification circuit 113, it is the resistance of 5.1K that described the first divider resistance R2 should select resistance; Know by detection, drop is through the out-of-date pulse signal about level 1.1V that is that is input to the first operational amplification circuit 113 positive input terminals, in order to make amplifier be operated in the linear amplification zone, the small-signal that simultaneously amplifier in is received obtains enough amplifications, R4 and R6 should select resistance to be respectively the resistance of 30K, 100K in the circuit, and the amplification that signal amplifying part is divided in the circuit at this moment is 3 .3 times; Since capacitance C1 and capacitor C 2 relate to circuit every the straight-through performance of handing over, the quality of capacitive property directly affects the Stability and dependability of electric circuit inspection, therefore should use the electric capacity that drain voltage is less, the life-span long, stability is high, to select respectively the appearance value be the tantalum electric capacity of 100F μ and 22F μ for capacitor C 1, C2 in this circuit.Simultaneity factor can strengthen by the reference voltage that improves the first voltage comparator circuit 114 its capacity of resisting disturbance, and R9 is 100K in the circuit, and R8 is 15K, and the reference voltage that they consist of is 0.6V.Simultaneously, in order to improve the capacity of resisting disturbance of module, system adopts the black baffle that phototriode 112 is encased, and has effectively reduced peripheral visible light to the impact of drop detection.
This utility model level detection module 12 comprises the infrarede emitting diode 121 that is arranged at Murphy type tube 6 one sides, be arranged at Murphy type tube 6 opposite sides and infrarede emitting diode 121 corresponding infrared receiving tube 122 and liquid level detection circuit, described infrared receiving tube 122 is connected with liquid level detection circuit, and the outfan of described liquid level detection circuit is connected with the input of Single-chip Controlling unit 18.This utility model adopts infrared detection technology that liquid level is detected, with reference to shown in Figure 5, infrarede emitting diode 121 sends infrared light, and light sees through liquid and Murphy type tube 6 shines on the photosurface of infrared receiving tube 122, and infrared receiving tube 122 converts the optical signal that receives to electric current output.Because capillarity and liquid in pipe Laminar Flow, between liquid level and tube wall, formed the concavity liquid wall, refraction and the scattering process of concavity liquid wall have a great impact light, and when concavity liquid wall during more near receiving tube, its attenuation to light is larger.Therefore, when liquid levels concavity liquid wall exceeded infrared receiving tube 122 receiving position, the light signal strength that shines infrared receiving tube 122 was larger, and the photoelectric current of generation is also larger, and this moment, infrared receiving tube 122 signal output part voltages were low level; When liquid level concavity liquid wall dropped to infrared receiving tube 122 same level face, the light signal strength that shines infrared receiving tube 122 was the most weak, the more weak photoelectric current of circuit output this moment, and infrared receiving tube 122 signal output part voltages are high level; After liquid level concavity liquid wall was lower than infrared receiving tube 122 fully, light can lead directly to again irradiation infrared receiving tube 122, and infrared receiving tube 122 recovers conducting state, and this moment, infrared receiving tube 122 signal output part voltages were low level.Therefore, can realize detection to system's liquid level by the variation that detects infrared receiving tube 122 signal output part voltage signals.
The circuit theory diagrams of described liquid level detection circuit are with reference to shown in Figure 6, comprise voltage comparator 123, the reference voltage link of described voltage comparator 123 is connected with by resistance R 10, R11 forms with reference to bleeder circuit, the signal output part of described infrared receiving tube 122 is connected to the inverting input of voltage comparator 123, also be provided with infrared divider resistance R13 on infrared receiving tube 122 and voltage comparator 123 inverting inputs, resistance R 10, R11 provides reference voltage for the normal phase input end of voltage comparator 123, native system selecting system liquid level when being higher than infrared receiving tube 122 corresponding output voltage be the system reference magnitude of voltage.Because the signal that infrared receiving tube 122 signal output parts receive has obvious variation when closing on liquid level, therefore by 123 liang of input terminal voltages of voltage comparator are compared, utilize single-chip microcomputer can realize effective monitoring to system's liquid level to the detection of voltage comparator 123 respective signal output end signals.
In this liquid level detection circuit, can reach the sensitivity that maximum improves system's level detection by the variation that makes receiving tube signal output part voltage signal as far as possible, should to select resistance be 200 resistance to R13 in the circuit; Simultaneity factor can strengthen its capacity of resisting disturbance by the reference voltage level REF U that improves voltage comparator 123, and R10 is 100k in the circuit, and R11 is 15k, and the reference voltage that they consist of is 4.4V.
Key-press module 14 is the equipment of realizing data input and parameter modification in the intravenous transfusion monitoring instrument 1, can to system's parameters, send control instruction etc. by key-press module 14.When set function key or numeral keys pressed, system can finish the function that this button sets.Because I/O mouth resource is relatively more nervous in the system, simultaneously for improving the efficient of module software design, system carries out modular design according to the control thought of line reversal process, key-press module 14 circuit theory diagrams of system are with reference to shown in Figure 7, be included as matrix keyboard interface J6, and be connected to the external button S1 ~ S6 of outer box.System realizes the differentiation of key assignments by the variation that detects keyboard height four bit levels and reads.In order to make circuit can effectively realize response, the Gao Siwei of matrix keyboard all connects and draws resistance in the circuit, and its resistance is 10 k.
Data disaply moudle 13 is the interfaces of realizing man-machine interaction, but relevant parameter and warning message by data disaply moudle 13 display systems.Consider that the partial data value is larger, native system adopts 24 charactrons 131 to carry out the demonstration of data; Because the I/O of system port is comparatively nervous, in order to realize effective control of logarithmic code pipe 131, system adopts serial control core 132 74HC595 to carry out the processing of related data simultaneously, and the data display circuit of system is with reference to shown in Figure 8.On current is too high and burn out charactron 131 in the circuit, needs to select suitable current-limiting resistance in this circuit.Because charactron 131 inside are made of light emitting diode, its running current scope is 5 ~ 20 mA, take and forward voltage drop as about the 2V.In order suitably to control the luminosity of charactron 131, should to select resistance be 330 resistance to current-limiting resistance R18 ~ R25 in the circuit, this moment, the drive current of charactron 131 was 9mA, simultaneously, in order to realize effective gating of logarithmic code pipe 131, the series resistance that is connected with audion in the circuit should be selected slightly large resistance, and to select resistance be the resistance of 4.7k to R36 ~ R39 in this circuit.
Because traditional RS485 communication needs wiring, installation and maintenance work is difficulty, complicated comparatively, and be vulnerable to the impact of field condition, in order to meet consumers' demand, this utility model serial wireless communication module adopts the STR-30 wireless module, with the data communication between wireless transmission method realization data collecting system and the main PC machine.This module adopts semiduplex communication mode, is suitable for point-to-point, point-to-multipoint transfer of data; Simultaneously, owing to adopt efficient forward error correction channel technology, have higher capacity of resisting disturbance and the lower bit error rate, can effectively realize the interference and the pseudo-data that produce in the data transmission procedure are filtered.In addition, this module provides transparent data-interface, can adapt to any standard or off-gauge User Agreement, only needs by carrying out relevant control operation to it with the direct connection of single-chip microcomputer pin.
Sound and light alarm module 15 is used for realizing sound and light alarm when relevant warning message appears in system as an important component part of system, so that the prompting medical personnel note current patient transfusion situation and carry out associative operation.Described sound and light alarm module 15 comprises audible alarm module and light alarm module, described audible alarm module comprises PNP audion and buzzer 151, described Single-chip Controlling unit 18 is connected on the base stage of PNP audion, described PNP transistor collector is connected with power supply, and the emitter stage of PNP audion is connected with buzzer 151; Described smooth alarm module comprises alarm lamp DL3 and dropping resistor, and Single-chip Controlling unit 18, dropping resistor, alarm lamp DL3 are connected with ground wire and are in succession connected.
Wherein the audible alarm modular circuit is with reference to shown in Figure 9, select in the circuit model be the audion Q11 of PNP as turn-on transistor, when only having the low level signal input, circuit just works, and therefore can effectively avoid system boot moment, circuit produces false alarm.In this sound light alarming circuit, for realizing the effective control to buzzer 151, it is that the resistance of 4.7K is as the base series resistor of audion that system has selected resistance; Described smooth alarm module is with reference to shown in Figure 10, selected in the circuit resistance be the resistance of 2K as the current-limiting resistance of alarm lamp DL3, electric current is 15mA in this moment circuit, wherein R29 is the series resistance in the circuit.
In order to utilize fully the existing head of a bed calling system of hospital, system passes through the wired alarming to the Closed control feasible system of relay 192.System's wired alarming circuit 19 is with reference to shown in Figure 11.Described wired alarming circuit 19 comprises on-off circuit 191 and relay 192, the outfan of described Single-chip Controlling unit 18 links to each other with relay 192 signal input parts by on-off circuit 191, and the output control terminal of described relay 192 is connected with bedside calling system 7.In this wired alarming circuit 19, described on-off circuit 191 is comprised of audion Q12 and peripheral circuit thereof, and audion Q12 plays the effect that is equivalent to switch, and when JD end input high level signal, audion is in conducting state; When JD end input low level signal, audion works in cut-off state, can realize open and close controlling to relay 192 namely having realized the open and close controlling to bedside calling system 7 by the selection to the audion duty.Because the coil of circuit relay electrical equipment 192 belongs to inductive load; when audion ends; its collector current IC=0; and the electric current L I on the script coil can not reduce to 0 moment; produce for fear of coil and higher answer electromotive force and damage audion; this circuit is selected the input of the diode D3 of an Opposite direction connection and relay 192 and is connect, and for the coil current L I of relay 192 provides a discharge path, has effectively realized the protection to audion.Simultaneously, in order to realize the effective gating to audion, the resistance that is connected with transistor base in the circuit should be selected slightly large resistance, and to select resistance be the resistance of 4.7k to R31 in this circuit.
For the effective control of realization system to each functional module, the chip STC89C52 that native system is selected is multiple functional, internal resource is abundant is as the control chip of system.It is a kind of low-power consumption, high performance 8 8-digit microcontrollers, and 3 16 bit timing device/enumerators and 8 interrupt sources are contained in inside, has satisfied fully the software design demand of system; The EEPROM unit of the integrated 2K byte of while chip internal, the preservation mass data of can cutting off the power supply.Utilize this chip can form the control system of a high-performance, low-power consumption, high stability.System, control circuit is with reference to shown in Figure 12.
Power module 16 is important component parts of system, mainly is that its voltage regulation performance directly has influence on the Stability and dependability of system works for each functional module provides required running voltage.In native system, system provides external power source and two kinds of powering modes of stand-by power supply, and the selection by diode can realize automaticallying switch fast between the two.Because system only needs single+5V power supply, therefore select the LM2940 chip to provide+the voltage stabilizing output of 5V, the system power supply design circuit is with reference to shown in Figure 13.Wherein J7, J9 are respectively external power source interface and switch interface; DL4 is light emitting diode, can indicate the duty of power supply.
How modules is called in this utility model hospital intravenous transfusion monitoring management system and design is important component part of the present utility model, its performance directly has influence on the performance of systematic function.Native system adopts modularity and structurized method for designing, and each function module design is functional module independently, by mastery routine each module is called the correlation function of realization system.Native system software design module comprises master control program module, initialization module, drop detection module 11, keypress function setting module, data disaply moudle 13, data access module and radio receiving transmitting module 54 etc.The system function module design structure diagram is with reference to shown in 14.
Mastery routine is the key component of system's control, by the various functions that calls feasible system to other functional modules.Its specific embodiment is as follows: after system connects with the mains, mastery routine at first enters the initialization that initialization section is carried out relevant parameter, then the parameter that enters system arranges part, wait for relevant operational order this moment, by setting and the preservation to the processing feasible system relevant parameter of the dependent instruction of keyboard scan and wireless receiving; After system received the instruction of starting working, mastery routine entered the monitoring infusion part, carried out the monitoring of system's transfusion situation, comprised system's transfusion speed, transfusion residual volume, transfusion volume and the isoparametric monitoring of the planar condition of transfusion liquid.This moment, system showed that current transfusion drips number by to the calling of data disaply moudle 13.When system's appearance transfusion is unusual, by the processing to infusion information, mastery routine enters the abnormal information processing section, carries out the relevant treatment of system's infusion information, after system received exit instruction, mastery routine turned back to the monitoring that monitoring infusion is partly proceeded system's transfusion situation.After system received thorough exit instruction, mastery routine turned back to initialization section and the relevant operation of waiting system.System's main program flow chart is with reference to shown in Figure 15.
In the described initialization module, will be directly connected to effective utilization of single-chip microcomputer internal resource and the normal operation of system to the initialization of system.The major function of system initialization module is the initialization of finishing single-chip microcomputer and each peripheral module, comprises that single-chip microcomputer I/0 port initialization, intervalometer initialize, interrupt initializing, the initialization of serial port initialization and systematic parameter and correlated variables arranges etc.
Described drop detection module 11 owing to be difficult to avoid the interfering signal that occurs being correlated with in the system work process, and learns that through measurement interval perseverance between the adjacent drops is greater than 150ms, with reference to shown in Figure 16.Detecting the drop signal is the main task of Design of System Software, and the accuracy of drop signal detection and reliability will directly affect the performance of system.In order to make system can stablize, work reliably, system adopts the external interrupt mode to carry out the seizure of drop signal, carries out the processing of drop information in conjunction with intervalometer simultaneously.In system, at first utilize regularly 15ms of timer 2, and carry out the interruption of time by built-in enumerator and count, when the INT0 pin detects the trailing edge signal, carry out external interrupt and process, if this moment system detect adjacent pulse interval greater than 10*15ms the time, this time spacing value is read, timing initial value with intervalometer initializes again, the New count of laying equal stress on; On the other hand, utilize timer 2 to carry out 150ms regularly, system detects pulse number more than or equal to 1 when timing arrives, think that pulse signal is effective, number of infusion drops adds 1, simultaneously drop arrives sign drops_flag and puts 1, and is in 0 the situation, the time interval value between the adjacent drops to be assigned to time parameter at interference indicator interference_flag.System's drop overhaul flow chart is with reference to shown in Figure 17.
System is by calling the realization of monitoring infusion module to the monitoring of patient infusion situation.In this functional module, the monitoring of transfusion situation comprises the monitoring to infusion parameter such as transfusion speed, transfusion volume, residue transfusion volume, transfusion liquid levels.When system detects early warning signal, can carry out the early warning of system and process, and send early warning information by wireless communication module to computer, carry out relevant operation with the prompting medical personnel; When system detects alarm signal, can judge and affirmation to type of alarm the processing of then reporting to the police accordingly.Wherein, this functional module workflow diagram is with reference to shown in Figure 180.
With reference to shown in Figure 19, described hand-held PDA5 comprises processor 51, display screen 52, bar code contrast means 53, radio receiving transmitting module 54 and alarm module 55, and described display screen 52, bar code contrast means 53, radio receiving transmitting module 54 and alarm module 55 are connected with processor 51 respectively.
All be provided with unique bar coded sticker on every cover intravenous transfusion monitoring instrument 1, with reference to Figure 20, wherein the workflow of hand-held PDA5 is as follows: by the bar code contrast means 53 scanning bar code labels of hand-held PDA5, then scan the sticking bottle of the transfusion single bar code label on the infusion bottle, display screen 52 on the hand-held PDA5 can show patient's essential information and transfusion doctor's advice information, after staff's confirmation, patient is carried out transfusion, then the information of intravenous transfusion monitoring instrument 1 periodic monitor infusion bottle, and renewal transfusion progress, abnormal alarm information or transfusion progress are arranged greater than 95% if find, then send warning message by nurse station computer 3 to hand-held PDA5, the staff reports to the police according to the information processing on the hand-held PDA5 display screen 52, then proceeds monitoring.
The above is preferred embodiment of the present utility model, and this utility model is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection domain of the present utility model.

Claims (10)

1. hospital's intravenous transfusion monitoring instrument, it is characterized in that: comprise drop detection module (11), level detection module (12), data disaply moudle (13), key-press module (14), sound and light alarm module (15), power module (16) and wireless series communication module (17) and Single-chip Controlling unit (18), described drop detection module (11), level detection module (12), data disaply moudle (13), key-press module (14), sound and light alarm module (15), power module (16) is connected 17 with the wireless series communication module) be connected with Single-chip Controlling unit (18) respectively.
2. a kind of hospital according to claim 1 intravenous transfusion monitoring instrument, it is characterized in that: described drop detection module (11) comprises iraser pipe (111) phototriode (112) and the drop detection circuit corresponding with iraser pipe (111) with being arranged at the Murphy type tube opposite side that is arranged at infusion set Murphy type tube one side, and described phototriode (112) is connected with Single-chip Controlling unit (18) by the drop detection circuit.
3. a kind of hospital according to claim 2 intravenous transfusion monitoring instrument, it is characterized in that: described drop detection circuit comprises the first operational amplification circuit (113) and the first voltage comparator circuit (114), the outfan of described phototriode (112) is connected to the input of the first operational amplification circuit (113) by capacitance (C1), and the outfan of the first operational amplification circuit (113) is connected to the data input pin of Single-chip Controlling unit (18) by the first voltage comparator circuit (114).
4. a kind of hospital according to claim 1 intravenous transfusion monitoring instrument, it is characterized in that: described level detection module (12) comprises the infrarede emitting diode (121) that is arranged at Murphy type tube one side, is arranged at Murphy type tube opposite side infrared receiving tube (122) and the liquid level detection circuit corresponding with infrarede emitting diode (121), described infrared receiving tube (122) is connected with liquid level detection circuit, and the outfan of described liquid level detection circuit is connected with the input of Single-chip Controlling unit (18).
5. a kind of hospital according to claim 1 intravenous transfusion monitoring instrument, it is characterized in that: described key-press module (14) is matrix keyboard.
6. a kind of hospital according to claim 1 intravenous transfusion monitoring instrument, it is characterized in that: wireless series communication module (17) adopts the STR-30 wireless module.
7. a kind of hospital according to claim 1 intravenous transfusion monitoring instrument, it is characterized in that: described sound and light alarm module (15) comprises audible alarm module and light alarm module, described audible alarm module comprises PNP audion (Q11) and buzzer (151), described Single-chip Controlling unit (18) is connected on the base stage of PNP audion, described PNP transistor collector is connected with power supply, and the emitter stage of PNP audion is connected with buzzer (151); Described smooth alarm module comprises alarm lamp (DL3) and dropping resistor, and Single-chip Controlling unit (18), dropping resistor, alarm lamp (DL3) are connected with ground wire and are in succession connected.
8. a kind of hospital according to claim 1 intravenous transfusion monitoring instrument, it is characterized in that: described intravenous transfusion monitoring instrument (1) also comprises wired alarming circuit (19), described wired alarming circuit (19) comprises on-off circuit (191) and relay (192), the outfan of described Single-chip Controlling unit (18) links to each other with relay (192) signal input part by on-off circuit (191), and the output control terminal of described relay (192) is connected with the bedside calling system.
9. hospital's intravenous transfusion monitoring management system of using the arbitrary described intravenous transfusion monitoring instrument of the claims 1-8 is characterized in that comprising:
Intravenous transfusion monitoring instrument (1), described intravenous transfusion monitoring instrument (1) comprises drop detection module (11), level detection module (12), data disaply moudle (13), key-press module (14), sound and light alarm module (15), power module (16) and wireless series communication module (17) and Single-chip Controlling unit (18), described drop detection module (11), level detection module (12), data disaply moudle (13), key-press module (14), sound and light alarm module (15), power module (16) is connected 17 with the wireless series communication module) be connected with Single-chip Controlling unit (18) respectively;
Wireless receiver (2), described wireless receiver (2) is connected with wireless series communication module (17) radio communication in the intravenous transfusion monitoring instrument (1), receives the detection information from intravenous transfusion monitoring instrument (1);
Nurse station computer (3) is connected with wireless receiver (2), obtains the detection data message that wireless receiver (2) receives;
Data server (4) is used for storage and detects data message, and described data server (4) is connected with nurse station computer (3);
Hand-held PDA(5), described hand-held PDA(5) connect nurse station computer (3) and/or data server (4) by wireless network.
10. a kind of hospital according to claim 9 intravenous transfusion monitoring management system, it is characterized in that: described hand-held PDA(5) comprise processor (51), display screen (52), bar code contrast means (53), radio receiving transmitting module (54) and alarm module (55), described display screen (52), bar code contrast means (53), radio receiving transmitting module (54) and alarm module (55) are connected with processor (51) respectively.
CN 201220564123 2012-10-31 2012-10-31 Venous infusion monitoring instrument and management system in hospital CN202892549U (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102974000A (en) * 2012-10-31 2013-03-20 江门市五邑中医院 Hospital venous transfusion monitoring meter and management system
CN103751874A (en) * 2014-01-21 2014-04-30 山东大学齐鲁儿童医院 System for improving metering accuracy of newborn intravenous nutrition injection
CN103751883A (en) * 2013-05-29 2014-04-30 长春工业大学 Portable intelligent transfusion management device
CN104174092A (en) * 2014-08-27 2014-12-03 广东巨龙信息技术有限公司 Infusion monitoring instrument and construction method thereof
CN104248788A (en) * 2013-06-27 2014-12-31 陈国经 Movable infusion monitoring device
CN104707215A (en) * 2015-03-06 2015-06-17 昂科信息技术无锡有限公司 Medical infusion monitoring system and method
CN105582590A (en) * 2014-10-24 2016-05-18 万军 Intelligent diagnosis and treatment injection system
CN106373037A (en) * 2015-07-21 2017-02-01 拓连科技股份有限公司 Methods and systems for reminding user requests
CN107137802A (en) * 2017-05-18 2017-09-08 南方医科大学南方医院 A kind of constant temperature venous transfusion control system and method
CN109432547A (en) * 2018-12-04 2019-03-08 韩文莉 A kind of intelligence pediatric nursing venous transfusion management device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102974000A (en) * 2012-10-31 2013-03-20 江门市五邑中医院 Hospital venous transfusion monitoring meter and management system
CN102974000B (en) * 2012-10-31 2015-04-29 江门市五邑中医院 Hospital venous transfusion monitoring meter and management system
CN103751883A (en) * 2013-05-29 2014-04-30 长春工业大学 Portable intelligent transfusion management device
CN103751883B (en) * 2013-05-29 2015-12-02 长春工业大学 A kind of Portable intelligent transfusion management device
CN104248788A (en) * 2013-06-27 2014-12-31 陈国经 Movable infusion monitoring device
CN103751874A (en) * 2014-01-21 2014-04-30 山东大学齐鲁儿童医院 System for improving metering accuracy of newborn intravenous nutrition injection
CN103751874B (en) * 2014-01-21 2015-09-02 济南市儿童医院 A kind of system improving neonate intravenous nutrition injection measurement accuracy rate
CN104174092A (en) * 2014-08-27 2014-12-03 广东巨龙信息技术有限公司 Infusion monitoring instrument and construction method thereof
CN104174092B (en) * 2014-08-27 2017-02-15 东莞市阳光信息科技有限公司 Infusion monitoring instrument and construction method thereof
CN105582590A (en) * 2014-10-24 2016-05-18 万军 Intelligent diagnosis and treatment injection system
CN104707215A (en) * 2015-03-06 2015-06-17 昂科信息技术无锡有限公司 Medical infusion monitoring system and method
CN106373037A (en) * 2015-07-21 2017-02-01 拓连科技股份有限公司 Methods and systems for reminding user requests
CN107137802A (en) * 2017-05-18 2017-09-08 南方医科大学南方医院 A kind of constant temperature venous transfusion control system and method
CN109432547A (en) * 2018-12-04 2019-03-08 韩文莉 A kind of intelligence pediatric nursing venous transfusion management device

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