CN110368552A - One kind remotely combining unattended medical infusion monitoring system - Google Patents
One kind remotely combining unattended medical infusion monitoring system Download PDFInfo
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- CN110368552A CN110368552A CN201910674111.3A CN201910674111A CN110368552A CN 110368552 A CN110368552 A CN 110368552A CN 201910674111 A CN201910674111 A CN 201910674111A CN 110368552 A CN110368552 A CN 110368552A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
- A61M5/16845—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion by weight
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16886—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body for measuring fluid flow rate, i.e. flowmeters
- A61M5/1689—Drip counters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
Abstract
The present invention provides one kind remotely to combine unattended medical infusion monitoring system, and infusion monitoring system includes infusion monitoring module, wireless communication module, information display module and power module；Infusion monitoring module includes main control module and the gravity sensor module being attached thereto, infrared sensor module, alarm module；The central processing unit model MSP430F149REV of main control module；Gravity sensor module is mounted on infusion hanger；It is U-shaped that infrared tube sensor is installed in Murphy type burette upper outer wall；Alarm module is made of buzzer, triode, resistance；Wireless communication module is connected with main control module, and the wireless transmission of information is carried out by ZigBee technology, includes the chip of model CC2530 in wireless communication module；Information display module is connected with wireless communication module.The present invention solves the case where being unable to monitor, alarm caused by single-sensor failure, and combination signal monitoring is reliable, and accuracy is high.
Description
Technical field
The invention belongs to the field of medical instrument technology, and in particular to one kind remotely combines unattended medical infusion monitoring system
System.
Background technique
Venous transfusion is common administration mode in clinical treatment, and domestic intravenously administrable is to rely on the intravenous drip of gravity
Based on.Lack economical and effective, convenient and fast fuction monitoring device for infusion during gravity infusion at present, the monitoring of medical fluid needs patient or disease
Members and nurse constantly pay close attention to.Sometimes patient or family members, nurse's carelessness, cannot replace medicine bottle, it may appear that blood returns in time
Situations such as stream, may generate serious consequence to some especial patients, lead to malpractice.Current existing infusion monitoring side
Method is primarily present following problems: (1) current existing monitoring alarm for transfusion, mostly short distance infusion monitoring are not able to satisfy
Long-range monitoring；(2) there is the disadvantages of connection number of devices is few, transmission range is close, WIFI function in traditional communication, bluetooth
Consumption is big, needs router or AP equipment, at high cost, is unsuitable for requiring infusion monitoring system at low cost, easy to use；(3)
Most of infusion monitorings are monitored medical fluid surplus using single sensor, once sensor failure, infusion monitoring system
It can not normally monitor, alarm, easily initiation malpractice.
Domestic infusion monitoring not hospital, outpatient service largely promoted and using the main reason for be cost, just
Benefit, practicability, monitoring accuracy etc. are unable to satisfy clinical and patient requirement.
Summary of the invention
The present invention aiming at the shortcomings in the prior art, provides one kind and remotely combines unattended medical infusion monitoring system,
By long-range infusion monitoring, monitoring of the hospital to patient fluid infusion's situation is realized；Simultaneously with dual sensor to infusion surplus, infusion speed
Parameter real time monitorings, the stability such as degree are strong.
To achieve the above object, the invention adopts the following technical scheme: a kind of remotely combine unattended medical infusion prison
Examining system, the infusion monitoring system include infusion monitoring module, wireless communication module, information display module and power supply mould
Block,
Infusion monitoring module includes main control module, gravity sensor module, infrared sensor module, alarm module；Wherein
The central processing unit model MSP430F149REV of main control module, the processor is high with arithmetic speed, power consumption is ultralow, peripheral hardware
Feature-rich, the advantages that interrupt processing is powerful, MSP430F149REV is for acquiring and handling information, main control module difference
It is connected with gravity sensor module, infrared sensor module, alarm module；Gravity sensor module is mounted on infusion hanger
On, infusion bottle is hung on gravity sensor；Infrared sensor module includes infrared tube sensor, outer above Murphy type burette
It is U-shaped that wall is equipped with infrared tube sensor, measuring transfusion speed, make the infrared transmitting tube of infrared tube sensor with it is red
Outer reception pipe horizontal aligument；Alarm module is made of buzzer, triode, resistance；
Wireless communication module is connected with main control module, and the wireless transmission of information, wireless communication are carried out by ZigBee technology
It include the chip of model CC2530 in module, CC2530 integrates the Zigbee protocol stack Z-Stack of Texas Instrument's exploitation, can be straight
It connects using protocol stack platform development upper layer communication, reduces system development cycle, have many advantages, such as low in energy consumption, strong antijamming capability.
Information display module is connected with wireless communication module, patient's infusion information for real-time display front-end collection；
Power module gives infusion test module for power supply.
To optimize above-mentioned technical proposal, the concrete measure taken further include:
Gravity sensor module includes gravity sensor and A/D converter circuit, and A/D converter circuit uses A/D converter chip
HX711；
The extraction raffinate information that drug is obtained after AD conversion obtains transfusion speed by the variable quantity of medical fluid in the unit time.
Simulation output INNA, INPA of gravity sensor 8 pin INPA with 7 pin INNA, HX711 of HX711 respectively
It is connected.
24 pin of universaling I/O port of central processing unit meets the 13 pin X0 of HX711 in gravity sensor module；Centre
25 pin of universaling I/O port of reason device is connected with the 12 pin DOUT of HX711 in gravity sensor module；Central processing unit it is general
26 pin of I/O mouth is connected with the 11 pin PDSK of HX711 in gravity sensor module.
The integrated circuit of model LM393 is used in infrared sensor module.
20 pins of central processing unit meet the 1 pin VHOUT of infrared sensor module LM393, and central processing unit is to input
Signal analyzed, current drop speed, the information of remaining medical fluid, remaining transfusion time is obtained by calculation.
Using MSP430F149 super low-power consumption feature, serial communication is used between central processing unit and communication module CC2530
Mode.The 35 pin P3.7 of data input pin of central processing unit is connected with the 16 pin URXD1 of wireless communication module CC2530；In
The 34 pin P3.6 of data output end of central processor is connected with the 17 pin UTXD1 of wireless communication module CC2530, central processing
By wireless transmission, by treated, information is transferred to information display module to device.
Wireless communication module is made of CC2530 chip, inductance, resistance, capacitor, crystal oscillator and antenna, and wherein antenna is monopole
Sub- unbalanced antenna；By discrete inductance L1, L2, capacitor C47, C48, C410 form balun transformer, are inputted with meeting RF, is defeated
Matching requires out.
It include current-limiting resistance RL1,31 pin P3.3 of central processing unit and the current limliting electricity of alarm module in alarm module
The one end RL1 is hindered to be connected, when infusion will be finished, change liquid, the too fast unusual condition that drop speed occurs when, triggering alarm module alarm.
Patient's infusion information includes patient's bed number, remaining liquid volume, current drop speed, the information of remaining transfusion time.
The beneficial effects of the present invention are: the present invention provides a kind of, the remotely combination based on ZigBee technology is unattended defeated
Liquid monitors system, and (1) solves the problems, such as the irrealizable long-range infusion monitoring of infusion monitoring system, using this infusion monitoring system
System, hospital realize that transfusion patient no longer needs household to accompany and attend to, greatly alleviates patient to patient fluid infusion's situation remote real time monitoring
Burden, also mitigate the workload of nurse；(2) wireless network based on ZigBee can real-time stabilization transmit multiple hospital beds or
The infusion information of transfusion chair position is suitably applied medium-and-large-sized hospital and large-scale clinic；(3) this transfusion system uses dual sensor pair
The important parameters real-time monitorings such as infusion surplus, transfusion speed, monitoring stability is strong, realizes accurate monitoring, solves single biography
Sensor is to the monitoring of medical fluid surplus, transfusion speed because being unable to monitor, alarming caused by sensor failure；(4) gravity sensitive is used
The scheme of device and infrared sensor avoids contacting with liquid medicine, and combination signal detection is reliable, and control precision is high, easy to spread.
Detailed description of the invention
Fig. 1 is the structural block diagram of infusion monitoring system of the invention.
Fig. 2 is the circuit diagram of main control module of the invention.
Fig. 3 is the circuit diagram of gravity sensor module of the invention.
Fig. 4 is the structural schematic diagram of fuction monitoring device for infusion of the invention.
Fig. 5 is the scheme of installation of infrared sensor module of the invention.
Fig. 6 is infrared sensor module circuit diagram of the invention.
Fig. 7 is the circuit diagram of alarm module of the invention.
Fig. 8 is the circuit diagram of wireless communication module of the invention.
Fig. 9 is the topological schematic diagram of cordless communication network of the invention.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.
As shown in Fig. 1, the present invention provides one kind remotely to combine unattended medical infusion monitoring system, including infusion
Monitoring modular, wireless communication module, information display module and power module (i.e. power supply module)；
Infusion monitoring module realizes front end infusion information for level monitoring, drop slowdown monitoring, monitoring patient calling alarm etc.
Acquisition, patient fluid infusion's information includes the information such as patient bed position number, remaining liquid volume, current drop speed, remaining transfusion time.
Infusion monitoring module includes main control module, gravity sensor module, infrared sensor module, alarm module.Wherein
Main control module includes crystal oscillator module circuit, reseting module circuit and power supply；The central processing unit of main control module selects U.S.'s moral
16 super low-power consumption microcontrollers of the MSP430F149REV of state instrument, for acquiring and handling infusion information, main control module electricity
Road is as shown in Figure 2.Main control module is connected with gravity sensor module, infrared sensor module, alarm module respectively, receives weight
The incoming information of force snesor module, infrared sensor module simultaneously controls alarm module work.
Gravity sensor module includes gravity sensor and A/D converter circuit, and gravity sensor modular circuit is as shown in Figure 3.
Gravity sensor selects highly sensitive electrostrictive strain bridge type magnetic sensor, and sensor accuracy 0.01g can accurately react infusing medicine
The variation of liquid 0.01mL.Using resistance piezoelectric effect principle, when effect of the resistance by external force, both end voltage can become
Change.A/D converter circuit is using the 24 A/D converter chip HX711 for aiming at high-precision weighing sensor and designing, the chipset
At peripheral circuits such as regulated power supply, on-chip clock oscillators, have integrated level height, fast response time, strong interference immunity etc. excellent
Point obtains the extraction raffinate information of drug after AD conversion, obtains transfusion speed by the variable quantity of medical fluid in the unit time.Gravity sensitive
Simulation output INNA, INPA of device is connected with the 8 pin INPA of 7 pin INNA, HX711 of HX711 respectively.
Fuction monitoring device for infusion structural schematic diagram as shown in figure 4, gravity sensor module be mounted on infusion hanger on, infusion
Bottle is hung on gravity sensor.Gravity sensor acquires the total weight signal of infusion bottle or medical fluid and attachment in infusion bag, number
According to processor is transferred to by wireless communication, processor is analyzed and processed data, obtains liquid measure, drop speed Vtg, remaining medicine
The information such as liquid, remaining transfusion time, and the drop speed measured and medical fluid surplus are compared with setting value.
Infrared sensor module installation diagram is as shown in figure 5, install infrared tube sensor in Murphy type burette upper outer wall
Measuring transfusion speed, make infrared transmitting tube and the infrared receiving tube horizontal aligument of infrared tube sensor, shape be convenient for
Fixed is U-shaped；When medical fluid is dripped under the effect of gravity through infrared detection mouth, since medical fluid makees reflection, the absorption of infrared light
With the infrared light that reception pipe receives obviously weakens, and can detecte out aneroid by the power of detection output voltage signal
Under drippage, the signal detected is transferred to central processing unit by wireless communication after shaping and is handled, calculates drop
Speed Vth information.Residual liquid is calculated indirectly by dripping slowdown monitoring, after perfusion tube specification is fixed, the capacity of each dropping liquid drop
Be it is fixed, be medically called Drops coefficient, drop number required for every milliliter of solution is the Drops coefficient of the infusion apparatus, studies have shown that
By detecting the drop number of medical fluid drop, the method for obtaining amount of infusion indirectly is feasible.Oneself is calculated through dripping by microprocessor
Drop number, calculate the currently capacity number be infused, and then calculate remaining amount of infusion, according to present infusion speed, calculate
Remaining transfusion time out.
Infrared sensor module circuit is as shown in fig. 6, use the integrated electricity of model LM393 in infrared sensor module
Road, RH1 is current-limiting resistance in Fig. 6, and RH2 is pull-up resistor, and UH2 is voltage comparator, and RH13, RH4, RH5 are divider resistance.It is defeated
During liquid when there is medical fluid drippage between infrared tube, the infrared light of infrared diode is obstructed by medical fluid, and phototriode is cut
Only, voltage comparator compares the voltage of noninverting input and reverse input end, and comparator exports corresponding height level point, by medicine
The signal shaping that drop is fallen is Transistor-Transistor Logic level signal, the 20 pin P2.0 of the 1 pin VHOUT and central processing unit MPS430 of LM393
Mouth is connected, and signal is input to central processing unit and is analyzed, and current drop speed Vth is obtained by calculation, and remaining medical fluid, residue are infused
The information such as time.
Vtg and Vth is analyzed, if Vtg or Vth is greater than setting max-thresholds, illustrates that medical fluid drop speed is abnormal, issues drop speed
Abnormal alarm signal, while the information such as patient's bed number or infusion number, current drop speed being shown in nurse station large-size screen monitors.It calculates surplus
Remaining amount of infusion, if remaining amount of infusion is less than or equal to set minimum liquid measure, illustrates that medical fluid will drip compared with setting minimum liquid measure
It is complete, alarm equipment alarm is driven, sending will drip off alarm signal, while patient's bed information being shown in nurse station large-size screen monitors,
Prompt nurse prepares dressing or pulls out needle.Compared to other monitoring modes, this method can real-time judge liquid residue, rather than wait until liquid
Body just gets signal when walking sky, is conducive to carry out liquid feeding plan in advance, while the combination monitoring method and the non-contact inspection of liquid medicine
It surveys, it is convenient and healthy.
Alarm module circuitry is as shown in Figure 7.Alarm module is made of buzzer, triode, resistance, includes in alarm module
Limited leakage resistance RL1, RL1 are the current-limiting resistance of 4.7K, are shielded.Amplify output electric current driving by PNP triode Q1
Buzzer, buzzer anode are connected to the collector of triode, and the base stage of triode is by current-limiting resistance RL1 by controller pin
Beep control, is connected with 31 pin P3.3 of central processing unit.When infusion will be finished, change liquid or drop speed occur too fast etc. abnormal
When situation, central processing unit controls alarm module alarm, and by warning message such as patient's bed number or infusion number, current drop speed,
The information such as current residual liquid measure pass to information display module in real time.
Information display module is connected with wireless communication module, the infusion information of the patient for real-time display front-end collection,
Currently drip the information such as speed, remaining transfusion time including the remaining liquid volume of patient's bed number (infusion number), can real-time display in nurse
Stand on large-size screen monitors, computer or portable PDA, nurse can remotely check the medical fluid surplus of patient, according to patient's medical fluid surplus,
The information such as dropping liquid remaining time carry out calmly replacement to prioritize and medical fluid or pull out needle, when abnormal conditions occur, system meeting and
Alarm.
Wireless communication module circuit is as shown in Figure 8.Wireless communication module selects ZigBee technology, the networking capability of Zigbee
By force, low in energy consumption, strong interference immunity, high reliablity, development cost is lower, especially suitable for transfusion monitoring system.By gravity sensitive
Module is sent to host computer by wireless communication for device and the infusion information of infrared sensor acquisition, and patient's infusion information is shown in shield
Scholar station large-size screen monitors, the network topology of wireless communication module are as shown in Figure 9.Wireless communication module is connected with main control module, network chip
It is selected as the CC2530 of Texas Instrument, CC2530 is based on 2.4GHZIEEE802.15.4 agreement, is integrated with Zigbee protocol stack Z-
Stack can directly utilize protocol stack platform development upper layer communication, reduce the period of system development, development cost is low, being capable of group
Build powerful cordless communication network.Wireless communication module is by CC2530 chip, inductance, resistance, capacitor, crystal oscillator and antenna sets
At the crystal oscillator Y1 of CC2530 is 32MHz, starting of oscillation capacitor C44, C45 27pF, and crystal oscillator Y2 is 32.768KHZ, and starting of oscillation capacitor is
15pF.This communication module selects monopole unbalanced antenna；By discrete inductance L1, L2, capacitor C47, C48, C410 composition is non-flat
Weigh transformer, is required with meeting RF input/output matching, reaches the optimal performance of chip.
Power module provides stable operating voltage for system operation, guarantees the normal operation of system.
Specific connection type between each module is as follows:
20 pins of central processing unit MSP430F149REV meet the 1 pin VHOUT of the LM393 of infrared sensor module；
24 pins of MSP430F149REV meet the 13 pin X0 of the HX711 of gravity sensor module；Draw the 25 of MSP430F149REV
Foot is connected with the 12 pin DOUT of gravity sensor module HX711；26 pins and gravity sensor module of MSP430F149REV
The 11 pin PDSK of HX711 are connected；The 16 pin URXD1 of the 35 pin P3.7 and CC2530 of MSP430F149REV are connected；
The 17 pin UTXD1 of the 34 pin P3.6 and CC2530 of MSP430F149REV are connected；The 31 pin P3.3 of MSP430F149REV
It is connected with one end current-limiting resistance RL1 of alarm module.
The work relationship of each module is as follows: passing through channel radio by the infusion information that gravity sensor and infrared sensor acquire
Letter module is sent to host computer, and patient's infusion information is shown in nurse station large-size screen monitors, and main control module is simultaneously to gravity sensor and red
The infusion information of outer sensor acquisition is monitored, if being abnormal situation, main control module control alarm module is alarmed,
Patient and nurse is reminded to carry out pulling out needle or other emergency.
It is readily apparent that, multiple infusion monitoring modules can be set, corresponded respectively with patient fluid infusion's hospital bed or seat；
The output end of multiple infusion monitoring modules is separately connected the input terminal of ZigBee module, the output end of multiple ZigBee modules with
Connection is wirelessly communicated between the input terminal of ZigBee demodulator, network is shown in nurse to the infusion information of patient by wireless communication
It stands on the monitoring terminal devices such as large-size screen monitors and mobile phone, PAD.
Using infusion monitoring system of the invention, transfusion patient is accompanied and attended to without household scene, and nurse can long distance monitoring ward
Or transfusion condition in infusion hall.The head of a bed or transfusion chair position are arranged manual call alarm button, patient can manual call nurse, use
In patient body is uncomfortable or active call nurse when will dripping off.
Present invention mainly solves following technical problems: (1) wireless transport module selects ZigBee technology, Zigbee networking
Ability is strong, low in energy consumption, strong interference immunity, and high reliability, development cost are lower, connection equipment is more, fully meets single infusion
Monitoring unit solves infusion segment and monitors irrealizable long-range infusion monitoring, transfusion patient to network transmission speed requirement
It does not need household to accompany and attend to, realizes hospital to patient fluid infusion's condition monitoring；(2) system passes the monitoring of infusion surplus using pressure
Sensor and the combination monitoring of correlation infrared sensor, solve single-sensor to the monitoring of medical fluid surplus because sensor failure draws
That rises is unable to monitor, alarms, even if a failure in gravity sensor or infrared sensor, infusion monitoring system of the invention
May continue to normally monitor, improve monitoring accuracy and reliability, nurse can according to the number of patient's medical fluid surplus orderly into
Row changes liquid or pulls out needle, avoids the generation of malpractice.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention should be regarded as protection of the invention
Range.
Claims (10)
1. one kind remotely combines unattended medical infusion monitoring system, which is characterized in that the infusion monitoring system includes defeated
Liquid monitoring modular, wireless communication module, information display module and power module.
Infusion monitoring module includes main control module, gravity sensor module, infrared sensor module, alarm module；Wherein master control
The central processing unit model MSP430F149REV of module, for acquiring and handling information, main control module respectively with gravity sensitive
Device module, infrared sensor module, alarm module are connected；Gravity sensor module is mounted on infusion hanger, infusion bottle
It hangs on gravity sensor；Infrared sensor module includes infrared tube sensor, is equipped in Murphy type burette upper outer wall
Infrared tube sensor is U-shaped, to measure transfusion speed, makes the infrared transmitting tube and infrared receiving tube of infrared tube sensor
Horizontal aligument；Alarm module is made of buzzer, triode, resistance；
Wireless communication module is connected with main control module, and the wireless transmission of information, wireless communication module are carried out by ZigBee technology
In include model CC2530 chip；
Information display module is connected with wireless communication module, patient's infusion information for real-time display front-end collection；
Power module gives infusion test module for power supply.
2. infusion monitoring system according to claim 1, which is characterized in that gravity sensor module includes gravity sensor
And A/D converter circuit, A/D converter circuit use A/D converter chip HX711；
The extraction raffinate information that drug is obtained after AD conversion obtains transfusion speed by the variable quantity of medical fluid in the unit time.
3. infusion monitoring system according to claim 2, which is characterized in that the simulation output INNA of gravity sensor,
INPA is connected with the 8 pin INPA of 7 pin INNA, HX711 of HX711 respectively.
4. infusion monitoring system according to claim 2, which is characterized in that 24 pins of central processing unit connect gravity biography
The 13 pin X0 of HX711 in sensor module；12 pins of HX711 in 25 pins and gravity sensor module of central processing unit
DOUT is connected；26 pins of central processing unit are connected with the 11 pin PDSK of HX711 in gravity sensor module.
5. infusion monitoring system according to claim 1, which is characterized in that use model in infrared sensor module
The integrated circuit of LM393.
6. infusion monitoring system according to claim 5, which is characterized in that 20 pins of central processing unit connect infrared sensing
The 1 pin VHOUT of device module LM393, central processing unit analyze the signal of input, be obtained by calculation current drop speed,
The information of remaining medical fluid, remaining transfusion time.
7. infusion monitoring system according to claim 1, which is characterized in that 35 pin P3.7 of central processing unit and wireless
The 16 pin URXD1 of communication module CC2530 are connected；The 34 pin P3.6's and wireless communication module CC2530 of central processing unit
17 pin UTXD1 are connected, and by wireless transmission, by treated, information is transferred to information display module to central processing unit.
8. infusion monitoring system according to claim 1, which is characterized in that wireless communication module is by CC2530 chip, electricity
Sense, resistance, capacitor, crystal oscillator and antenna composition, wherein antenna is monopole unbalanced antenna；By discrete inductance L1, L2, capacitor
C47, C48, C410 form balun transformer, and to meet RF input, output matching requires.
9. infusion monitoring system according to claim 1, which is characterized in that it include current-limiting resistance RL1 in alarm module,
31 pin P3.3 of central processing unit are connected with one end current-limiting resistance RL1 of alarm module, when infusion will be finished, change liquid, go out
Now when the too fast unusual condition of drop speed, triggering alarm module alarm.
10. infusion monitoring system according to claim 1, which is characterized in that patient's infusion information include patient's bed number,
Remaining liquid volume, current drop speed, the information of remaining transfusion time.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110680994A (en) * | 2019-11-18 | 2020-01-14 | 山西国药智信科技有限公司 | Intelligent transfusion monitoring system based on Internet of things and control method thereof |
| CN112386765A (en) * | 2020-10-26 | 2021-02-23 | 广东德澳智慧医疗科技有限公司 | Intelligent infusion monitoring system based on 5G |
| CN112604079A (en) * | 2020-12-11 | 2021-04-06 | 董旭 | Intelligent transfusion reminding device |
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