CN2790485Y - Transfusion process multi-parameter monitoring alarm system - Google Patents
Transfusion process multi-parameter monitoring alarm system Download PDFInfo
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- CN2790485Y CN2790485Y CN 200520100720 CN200520100720U CN2790485Y CN 2790485 Y CN2790485 Y CN 2790485Y CN 200520100720 CN200520100720 CN 200520100720 CN 200520100720 U CN200520100720 U CN 200520100720U CN 2790485 Y CN2790485 Y CN 2790485Y
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Abstract
The utility model relates to a multi-parameter monitoring alarm system for a transfusion process, which comprises a communication controller, a monitoring host machine and a transfusion monitoring instrument, wherein the transfusion monitoring instrument and the communication controller are connected through a communication bus, wherein the transfusion monitoring instrument is composed of a signal catching module, a central data processing module, a communication interface module, a power supply module and a calling control device. The utility model has the action that the overall transfusion process is monitored in a real-time way.
Description
Technical field
This utility model belongs to medical instruments field, relates in particular to a kind of system that all kinds of parameters that produced under transfusion state are monitored and can in time be reported to the police when abnormal conditions occurring.
Background technology
Common clinical transfusion be a kind of with bottled or packed medicinal liquid by the pipeline transfusion device, under atmospheric effect, inject the Therapeutic Method of medicament to patient's vein, it is the most frequently used a kind of treatment means of present hospital.The nurse should regulate and control transfusion speed at the state of an illness, transfusion total amount, transfusion purpose, patient's individual variation and concrete medicine in the infusion treatment process, to reduce or to prevent because of transfusion speed, the improper infusion reaction that causes of infusion amount; Simultaneously need in infusion process to understand at any time whether medicinal liquid drips off soon or whether pipeline situation such as stops up, so that in time handle.
At present, whole infusion process is except adopting the most frequently used nursing means (personal monitoring and nursing), and aspect infusion parameter monitoring, the warning of medicinal liquid surplus, prior art also provides following means:
1, contact: infusion alarm is that negative electrode, the warning circuit interface of warning circuit is formed by syringe needle, duroplasts conduit, rustless steel lead, rustless steel probe mainly.The characteristic of utilizing the liquid weak inductive is drawn a metal rustless steel lead and the syringe needle metal partly is connected in contact at the transfusion catheter syringe needle end that inserts infusion bottle one end, the other end is connected with the warning circuit anode, circuit interface and duroplasts conduit outer wall are connected as a single entity, the warning circuit interface being connected with luminous, sounding alarm promptly constitutes a cover transfusion warning system again, specifically sees also Chinese patent 98201351.5 and 02283551.2.But the method must make the pick off medicinal liquid directly contact, and may cause liquid medicine contamination, poor practicability;
2, weight method: promptly utilize weight method that infusion process herb liquid surplus is detected, generally constitute by LOAD CELLS, spring gravitation mechanism and warning circuit.Specifically see also Chinese patent 03264163.X and 98236924.7.
3, Level Detection method: mainly contain liquid level controller and information control circuit and alarm device and constitute.Alarm device is reported to the police when medicinal liquid is lower than detection faces.But it can only detect the transfusion of liquid bottle, is not suitable for the transfusion of liquid bag, specifically sees also Chinese patent 88202681.X and 98224927.6.
4, detect Murphy type pipe sessile drop method: specifically see also Chinese patent 02244459.9 and 200320119267.X.
5, also have in addition full tool formula, photo-electric and contain microprocessor drip fast detection alarm etc., specifically referring to Chinese patent 200420032590.8.
There is following shortcoming usually in above prior art:
1, detected parameters (1 or 2) on the low side, general only at a certain state parameter detection alarm in infusion process, and can not finish the monitoring of a plurality of state parameters simultaneously, cause the information of reflection infusion process imperfect, and in whole infusion process, still need the nursing staff constantly to make an inspection tour or family numbers of patients needs whole process to accompany and attend to, for the transfusion hall of some large-scale synthesis medical institutions, nursing staff's labor intensity does not still weaken undoubtedly for this.2, in the alarm method that medicinal liquid is dripped off, weight method is used trouble, easy false alarm or fail to report; Liquid-level detecting method is not suitable for the occasion of liquid bag transfusion; Do not distinguish at the method for the photoelectricity single-sensor of Murphy type pipe that medicinal liquid drips off or the ability of pipeline blockage; Adopt the method for 2 pick offs can realize that medicinal liquid drips off or the correct warning of pipeline blockage, than the method for single-sensor, its circuit complexity, power consumption increase.
Summary of the invention
The utility model discloses and a kind ofly can in infusion process, detect a plurality of state parameters simultaneously, comprise liquid drop speed detection and demonstration, drip speed warning higher or on the low side; Whether call out etc. the system of state container (bottle or the bag) detection of the surplus volume of Chinese medicine liquid and the warning that medicinal liquid will drip off, differentiation that whether infusion pipeline stops up and warning, patient, overcome the defective that prior art relies on manually-operated or can not monitor a plurality of parameters simultaneously, can reflect the status information of infusion process more all sidedly.
For addressing the above problem, the utility model discloses the described system of a kind of infusion process multi-parameter monitoring warning system comprises: a kind of infusion process multi-parameter monitoring warning system, comprise communication controler, monitoring host computer, it is characterized in that: also comprise infusion monitor, be connected with communication bus between infusion monitor and the communication controler.
Described infusion monitor comprises:
The signal capture module: be made of one group of photoelectric sending and receiving sensor that places Murphy type tube wall both sides and amplifying circuit, wherein photoelectric sending and receiving sensor converts the signal of telecommunication in order to the optical signal that will capture, and inputs to the central data processing module by amplifying circuit.
Central data processing module: be 8 or 16 single-chip microcomputers, and be implanted into the embedded software that calculates each parameter of infusion process at single-chip microcomputer.
Communication interface modules: comprise serial communication controller, communications driver and BUS EBI, be transmitted to monitoring host computer in order to the parameter that the central data processing module is calculated by communication bus, the order parameter that is sent by monitoring host computer that maybe will receive is transmitted to the central data processing module.
Supply module: constitute by dc source and regulator block, be used for providing continual safe voltage to infusion monitor.。
Call Control Block: be made up of DIP switch and resistance, the pulse signal of DIP switch closure and unlatching is sent to monitoring host computer by communication bus after the conversion of central data processing unit, realize call function.
The electrical signal of the signal capture module of described infusion monitor links to each other with the electric signal input end of central data processing module, and communication interface modules links to each other with communication bus by the BUS EBI.
The BUS EBI of described communication interface modules is 4 core buses, and wherein 2 cores are the power supply EBI, and 2 cores are data bus interface in addition.
Described communication bus in order to connection infusion monitor and communication controler is 4 core buses, and wherein 2 cores are power line, and 2 cores are data wire in addition.
The various order parameters of described infusion monitor are provided with by monitoring host computer.
The parameter that infusion monitor detects mainly comprises: liquid drop speed, medicinal liquid surplus, transfusion interruption and pipe blocking etc.
Compared with prior art, the utlity model has following beneficial effect:
1, the accurate warning that a photoelectric sensor can be realized each parameter only is installed;
2, overcome that the prior art monitoring parameter is on the low side, reflection infusion process information incomplete defective;
3, has the ability of linking up with existing information system of hospital by communication bus;
4, employing is bus-powered, and without battery or independent current source, brings convenience for installation of the present utility model and use.
Description of drawings
Fig. 1 is the structure chart of a kind of infusion process multi-parameter monitoring of this utility model warning system
Fig. 2 is the structure chart of infusion monitor
Fig. 3 is the flow chart that the embedded software in the central data processing module is handled the drop interrupt routine
Fig. 4 is the flow chart that the embedded software in the central data processing module is handled second interrupt routine
The specific embodiment
Below in conjunction with accompanying drawing, specify the present invention.
See also Fig. 1, this is the system construction drawing of the concrete Application Example of this utility model, is specially:
Whole infusion process multiparameter monitoring and alarming system is made of infusion monitor, monitoring host computer, communication controler and communication bus networking.Monitoring host computer is an ordinary PC, is arranged on nurse station or nurse job platform, links to each other with hospital existing information management system (HIS).When the patient begins to infuse, by the nurse according to doctor's advice with various parameters, comprise the input monitoring main frames such as minima that the transfusion speed, medicinal liquid surplus of per minute are reported to the police.Monitoring host computer is sent to specified infusion monitor by the RS485 communication bus with parameter.50 transfusion monitoring instruments of multipotency control of monitoring host computer.In the work process, the nurse can inquire about a plurality of infusion monitoies that are articulated on the communication bus successively by monitoring host computer, infusion monitor responds according to the order of monitoring host computer, report measured transfusion state parameter, when the parameter that detects when infusion monitor is higher than preset value, promptly can remind the nurse to take preventive measures from the report of trend monitoring host computer.
See also Fig. 2, (model is transfusion monitoring instrument: MSP430F123), communication interface modules, supply module, call control apparatus constitute by signal capture module, central data processing module U2.Wherein, (model is the signal capture module: LM324), triode T1 and resistance R 1, R2, R3 constitute by infraluminescence diode ED1, infrared receiving tube RT1, amplifier U1; Infrarede emitting diode ED1 sends the infrared ray of a branch of level during its work, pass the Murphy type pipe and arrive infrared receiving tube RT1, when having a drop vertically to fall in the Murphy type pipe, infrared ray is blocked, so can produce a voltage pulsation on infrared receiving tube RT1, optical signal just has been transformed into the signal of telecommunication.This voltage is through the amplification shaping of amplifier U1, form a pulse signal and enter central data processing module U2, according to this pulse signal, the embedded software of central data processing module U2 can calculate each parameter value automatically, by communication interface modules, send this parameter to the monitoring exchange through the RS485 communication bus.
Communication interface modules by the serial communication controller of central data processing module U2 inside, RS485 driver U4 (model is: SP3485) and the pin 3,4 of BUS EBI constitute.Wherein BUS pin 3 is A line (a data wire anode), pin 4 is B line (a data wire negative terminal), by RS485 communication bus (A line, B line), realize semiduplex data communication with monitoring host computer, report whole measurement data to monitoring host computer on the one hand, receive the setup parameter that monitoring host computer sends on the other hand.
Supply module: by the D.C. regulated power supply AC/DC that is placed on the nurse job platform, regulator block U5 (model is: HT7150) U6 (model is: HT7130) and the pin 1,2 in the BUS EBI constitute, the pin 1 of BUS is the full DC voltage of 6-10 volt-ampere, pin 2 is power supply ground, need not other external power sources; Positive supply arrives regulator block U5 by pin 1, and (model is HT7150) produces 5V voltage, and use on the power supply road, and the 5V power supply passes through regulator block U6 more simultaneously, and (model is HT7130) produces 3V voltage and use for integrated packages such as single-chip microcomputers.
Call control apparatus: constitute by DIP switch K1 and resistance R 4, R5, R6.In infusion process, the patient is as wanting nurse call, just press K switch 1, infusion monitor just produces a pulse signal and enters central data processing module U2, at this moment central data processing module U2 produces button interrupt response, call sign is set, after the communication control module conversion, is sent to monitoring host computer by communication bus.The nurse just can react rapidly after monitoring host computer is received this information.
In patient's infusion process, finish each CALCULATION OF PARAMETERS of transfusion state by central data processing module U2, comprise drip that speed is too fast or slow excessively, warning in advance that medicinal liquid surplus grain, medicinal liquid drip off and pipeline blockage warning etc., detailed process is as described below:
1, medicine drips the detection of speed, show, liquid drop speed is too fast, or slow partially warning: after infusion monitor obtains to restart order from the RS485 communication bus, it is high level that central data processing module U2 is provided with pin DRV (P1.0), audion T1 conducting, infrarede emitting diode ED1 sends the infrared ray of a branch of level, pass the Murphy type pipe and arrive infrared receiving tube RT1, when having a drop vertically to fall in the Murphy type pipe, infrared ray is blocked, at this moment can produce a voltage pulsation on the infrared receiving tube RT1, this voltage is through amplification and the shaping of amplifier U1, form the input pin INT1 (P1.2) that 1 pulse signal enters central data processing module U2, cause the interrupt response of central data processing module U2, in this drop interrupt response process (as shown in Figure 3), embedded software in the central data processing module U2 is accumulative total drop sum earlier, NUM=NUM+1 wherein: NUM begins till the current time completed drop sum from transfusion.In interrupt routine second (as shown in Figure 4) that produces by central data processing unit U2, read accumulative total number of drops NUM (the t2)=NUM of current time when (representing) with t2, with reference to the accumulative total number of drops NUM (t1) that the moment last 1 second (t1) is write down, obtained the liquid drop speed of per minute:
V=[NUM(t2)-NUM(t1)]/(t2-t1)*60=[NUM(t2)-NUM(t1)]*60
Wherein: V is a liquid drop speed, unit: drip/minute; T2-t1=1 second.The high lower bound warning of dripping speed is then checked.When V<V_Alarm_L, be to drip the slow excessively warning of speed; When V>V_Alarm_H, be to drip the too fast warning of speed; When V_Alarm L<V<V_Alarm_H, it is normal then to drip speed; Wherein: V_Alarm_L and V_Alarm_H are respectively the low alarm setting and the upper limit of liquid drop speed, before the transfusion beginning, on monitoring host computer, be provided with by the nurse, and this value of setting is sent to central data processing module U2 by the RS485 communication bus, the infusion monitoring instrument can be preserved these parameters, can not lose after the outage.
2, the detection of residual volume, the implementation method that warning in advance that medicinal liquid drips off and pipeline blockage are reported to the police: in the interrupt response program that each drop produced, central data processing module U2 will calculate the residual volume of container herb liquid: Vol_Left=Vol_Total-Vol_A_Drop*K wherein: Vol_Left is a residual volume, unit/ml, Vol_Total is the current specified medicine liquid volume of hanging medical liquid container (bottle/bag), unit: ml, as 500,250,100 etc., Vol_A_Drop is the volume of drop, unit: ml all is provided with on monitoring host computer by the nurse before the transfusion beginning; K is the correction factor of drop size, be used for finely tuning the volume size of drop, K is the function of container nominal volume, Container Type (bottle or bag), residual volume, liquid drop speed, at different medical liquid containers, this utility model has been determined different K values, and it is write as being embedded in the software data table of central data processing module U2.When the transfusion beginning, call concrete K value at different medical liquid containers by the nurse.
1. the implementation method of the warning function in advance that drips off of medicinal liquid: when Vol_Left<Vol_Alarm_L, the warning label that medicinal liquid is about to drip off is set, when Vol_Left>=Vol_Alarm_L, the warning label that the cancellation medicinal liquid is about to drip off; Wherein, Vol_Alarm_L is the residual volume alarm limit, unit: ml, and its implication is when residual volume during less than this numerical value, produces and reports to the police.Like this can in advance tell nurse from dripping off fully also for some time this moment, the nursery work of preparing next step, and ideal situation is that drop just drips off when the nurse arrives the patient next door.The nurse can be provided with the numerical value of residual volume alarm limit by monitoring host computer, thereby adjusts time quantum in advance, is limited to 0 if residual volume is reported to the police, and then is equivalent to drip off fully the back generation and reports to the police.By setting, can accurately handle the liquid bottle of different volumes, the transfusion occasion of liquid bag to Vol_Total, Vol_A_Drop, these parameters of Vol_Alarm_L.
2. pipeline blockage implementation method of reporting to the police and the differentiating method that all drips off with drop thereof: as liquid drop speed V=0, and also residual volume Vol_Left>0 o'clock, be pipeline blockage, produce and report to the police; And as liquid drop speed V=0, and during residual volume Vol_Left=0, the warning that all drips off for drop.
The parameter monitoring overall process that above infusion monitor is finished, the precondition that the detection of medicinal liquid residual volume is reporting to the police in advance of differentiating accurately that medicinal liquid drips off, pipeline blockage is reported to the police, and realized only just finishing the monitoring, alarming function of a plurality of state parameters of infusion process with a pair of infrared receiving/transmission pick off, compared with prior art, has the innovation characteristic.
More than disclosed only be a specific embodiment of the present invention, but the present invention is not limited thereto, the variation that all those skilled in the art can think of all should drop in protection scope of the present invention.
Claims (7)
1, a kind of infusion process multi-parameter monitoring warning system comprises communication controler, monitoring host computer, it is characterized in that: also comprise infusion monitor, be connected with communication bus between infusion monitor and the communication controler.
2, infusion process multi-parameter monitoring warning system as claimed in claim 1, it is characterized in that: described infusion monitor comprises:
The signal capture module: be made of one group of photoelectric sending and receiving sensor that places Murphy type tube wall both sides and amplifying circuit, wherein photoelectric sending and receiving sensor converts the signal of telecommunication in order to the optical signal that will capture, and inputs to the central data processing module by amplifying circuit.
Central data processing module: be 8 or 16 single-chip microcomputers, and be implanted in order to calculate the embedded software of each parameter of infusion process at single-chip microcomputer.
Communication interface modules: comprise serial communication controller, communications driver and BUS EBI, be transmitted to monitoring host computer in order to the parameter that the central data processing module is calculated by communication bus, the order parameter that is sent by monitoring host computer that maybe will receive is transmitted to the central data processing module.
Supply module: constitute by dc source and regulator block, be used for providing continual safe voltage to infusion monitor.
Call control apparatus: be made up of DIP switch and resistance, the pulse signal of DIP switch closure and unlatching is sent to monitoring host computer by communication bus after the conversion of central data processing module, realize call function.
3, infusion process multi-parameter monitoring warning system as claimed in claim 2, it is characterized in that: the electrical signal of the signal capture module of described infusion monitor links to each other with the electric signal input end of central data processing module, and communication interface modules links to each other with communication bus by the BUS EBI.
4, infusion process multi-parameter monitoring warning system as claimed in claim 2 is characterized in that: the BUS EBI of described communication interface modules is 4 core buses, and wherein 2 cores are the power supply EBI, and 2 cores are data bus interface in addition.
5, infusion process multi-parameter monitoring warning system as claimed in claim 1 is characterized in that: described communication bus in order to connection infusion monitor and communication controler is 4 core buses, and wherein 2 cores are power line, and 2 cores are data wire in addition.
6, infusion process multi-parameter monitoring warning system as claimed in claim 1, it is characterized in that: the various order parameters of described infusion monitor are provided with by monitoring host computer.
7, infusion process multi-parameter monitoring warning system as claimed in claim 1 is characterized in that: the parameter that described infusion monitor detects mainly comprises: liquid drop speed, medicinal liquid surplus, transfusion interruption and pipe blocking etc.
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101804227A (en) * | 2010-03-16 | 2010-08-18 | 倪桂珍 | Transfusion alarm device control main machine and application method thereof |
CN102247630A (en) * | 2011-04-22 | 2011-11-23 | 杭州法瑞尔科技有限公司 | Control method and device for automatic transfusion alarm-assistant device |
CN102824667A (en) * | 2011-06-14 | 2012-12-19 | 国民技术股份有限公司 | Dropping liquid monitoring device, system and monitoring method |
CN104707201A (en) * | 2015-03-20 | 2015-06-17 | 王新强 | Intelligent infusion tube |
CN109443400A (en) * | 2018-10-18 | 2019-03-08 | 广州智颜科技有限公司 | Squeeze bottle dropping liquid condition checkout gear and its detection method |
CN109550112A (en) * | 2019-01-22 | 2019-04-02 | 西安电子科技大学 | Infusion monitoring system based on LoRa technology |
CN110292705A (en) * | 2019-06-27 | 2019-10-01 | 山东科技大学 | A kind of remote control telocoele drug delivery system |
-
2005
- 2005-03-02 CN CN 200520100720 patent/CN2790485Y/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101804227A (en) * | 2010-03-16 | 2010-08-18 | 倪桂珍 | Transfusion alarm device control main machine and application method thereof |
CN102247630A (en) * | 2011-04-22 | 2011-11-23 | 杭州法瑞尔科技有限公司 | Control method and device for automatic transfusion alarm-assistant device |
CN102247630B (en) * | 2011-04-22 | 2013-09-18 | 杭州法瑞尔科技有限公司 | Control method and device for automatic transfusion alarm-assistant device |
CN102824667A (en) * | 2011-06-14 | 2012-12-19 | 国民技术股份有限公司 | Dropping liquid monitoring device, system and monitoring method |
CN104707201A (en) * | 2015-03-20 | 2015-06-17 | 王新强 | Intelligent infusion tube |
CN109443400A (en) * | 2018-10-18 | 2019-03-08 | 广州智颜科技有限公司 | Squeeze bottle dropping liquid condition checkout gear and its detection method |
CN109550112A (en) * | 2019-01-22 | 2019-04-02 | 西安电子科技大学 | Infusion monitoring system based on LoRa technology |
CN110292705A (en) * | 2019-06-27 | 2019-10-01 | 山东科技大学 | A kind of remote control telocoele drug delivery system |
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