CN104274882A - Infusion time monitoring device and method - Google Patents
Infusion time monitoring device and method Download PDFInfo
- Publication number
- CN104274882A CN104274882A CN201410492110.4A CN201410492110A CN104274882A CN 104274882 A CN104274882 A CN 104274882A CN 201410492110 A CN201410492110 A CN 201410492110A CN 104274882 A CN104274882 A CN 104274882A
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- China
- Prior art keywords
- time
- transfusion
- pulling force
- control unit
- infusion
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Classifications
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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
- 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
- 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
- A61M2205/332—Force measuring means
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an infusion time monitoring device and method. The infusion time monitoring device comprises a tension sensor arranged at a hook at the top of an infusion apparatus, and a micro control unit connected with the tension sensor, the micro control unit comprises a communication module and a calculation unit, the tension sensor uploads measured tension of an infusion bottle to the micro control unit, the calculation unit calculates volume of liquid in the infusion bottle according to data measured by the tension sensor, and the micro control unit sends volume information of the liquid in the infusion bottle to a duty room through the communication module to timely inform medical staff. The infusion time monitoring device is recyclable, can monitor time in real time and has an alarm finishing function, a patient can accurately set infusion time according to own will to realize seamless connection with other things and reasonable arrangement of work on hand. The medical staff can acquire infusion information of the patient so as to timely replenish liquid and finish infusion to realize orderliness.
Description
Technical field
The present invention relates to a kind of infusion set, particularly a kind of transfusion time supervising device and method, belong to medical transfusion control technology field.
Background technology
Transfusion, particularly venous transfusion is the conventional means in medical treatment, venous transfusion is topmost a kind of infusion model in the current clinical treatment of China, and in practical work, medical personnel carry out manual adjustments by the pulley rotated in transfusion to dripping speed by experience and observation.
As everyone knows, China is populous, and medical resource is rare, and hospital is often overstaffed.Transfusion is as a kind of important treatment means, and its audient face is very wide, and almost everyone has the experience at hospital water hanging.But entering today of information age, transfusion device but still maintains the most original function, lack of wisdom or informationalized control device, and this is also cause hospital injection room disorder, and nurse has to run around all the time wears him out, the most immediate cause that patient suffers untold misery.Although the suspension type transfusion device that Hospitals at Present uses has the device of coutroi velocity, but remaining time of infusing cannot be learnt, and the warning system after shortage infusion-completed, make patient can not reasonable arrangement inject time, and the nurse that raises a cry that has to after injection, do the confused noise both having caused injection room like this, have impact on the rest of other patients, also consume the muscle power of patient.
Current transfusion transfusion device used adopts packed form or bottled form mostly, adopts to carry out based on gravity or the mode of carrying out of external syringe pump realizes transfusion.In the process of transfusion, medical personnel or patient will nurse the residue situation of the medicinal liquid of transfusion device inside at any time, in order to avoid because of medicinal liquid deficiency, do not change dressings in time or stop injection and cause accident.
At present, hospital's venous transfusion mainly Artificial Control, the venous transfusion monitored by people, conciliation medicinal liquid flow velocity that cannot be correct, excessive velocities causes vascular stimulation owing to there being the one-tenth branch of potassium element in drop, can show very pain by stimulation.But transfusion speed will see the situation of self usually, but transfusion is still to blood vessel and heart, and kidney has stimulation.
Also there is a lot of patents for intelligent transfusion at present, publication number is a kind of transfusion system of " CN 103263708 ", and this system is made up of drug solution storage device, conduit, transfusion device, fluid-delivery valve, liquid level sensor, controller and alarm.The liquid level information of its operation principle for providing based on liquid level sensor, by controller, intelligentized control method is carried out to transfusion device and fluid-delivery valve, realize the control carrying out the switching of transfusion time, flow velocity and stream, drug solution is inputted the vein of patient automatically to realize carrying out device and reach therapeutic effect, and closing on transfusion end prerequisite for alert service, that infuses for reminding medical personnel completes.Although this invention can complete intelligent transfusion, change infusion set and reach the object of Based Intelligent Control, cause each transfusion all can only the new device of single use, cause unnecessary waste, cost be too high, is unfavorable for popularizing.
What publication number was " CN 102553021A " exempts to nurse transfusion system, when the medicinal liquid in Murphy type burette drops to warning minimum, Hall element detects magnetic ball float, send wireless signal to the radio receiving transmitting module of Surveillance center, through single-chip microcomputer analysis, send alarm signal by the wireless receiving module of Surveillance center, the transceiver terminal that medical personnel are equipped with receives the laggard row relax of alarm signal.Meanwhile, alarm signal is sent to computer by RS485 bus or wireless communication module.By the improvement to Murphy type burette, the hall principle of applied magnetic ball float and Hall element, utilize radio transmission technology, achieve the intelligent monitoring of exempting to nurse, greatly reduce the labor intensity of medical worker, improve the quality of monitoring and the intelligent management level of hospital, but this device still adds improvement on infusion set, add transfusion cost greatly, cost is too high, is unfavorable for popularizing.
Summary of the invention
Technical problem to be solved by this invention be for the deficiency in background technology provide a kind of structure simple, be easy to realize, can be recycled, and transfusion time supervising device and the method for oneself transfusion condition and transfusion required time can be understood in real time.
The present invention is for solving the problems of the technologies described above by the following technical solutions
A kind of transfusion time supervising device, comprise the pulling force sensor being arranged on hook place, transfusion device top and the micro-control unit be connected with pulling force sensor, described micro-control unit comprises a communication module, computing unit; Described pulling force sensor, is uploaded to micro-control unit for pulling force suffered by measurement infusion bottle; Described computing unit, the data for measuring according to pulling force sensor calculate liquid in infusion bottle and to be totally lost required time; Described communication unit, is sent to night shift room for the temporal information calculated by computing unit.
Preferably, this device also comprises the display unit and alarm unit that are connected with micro-control unit; Described display unit, for showing liquid volume in infusion bottle in real time; Described alarm unit, for giving the alarm after liquid in infusion bottle is totally lost.
Preferably, described pulling force sensor is HX711.
Preferably, described communication module is wireless communication module, and described wireless communication module adopts XL02-232AP1.
Preferably, described micro-control unit is AT89C52.
Preferably, described display module is 1 cun of LED display.
A kind of transfusion time method for supervising, is characterized in that: comprise the steps:
Step one, adds a pulling force sensor and connected micro-control unit at hook place, transfusion device top;
Step 2, adopts pulling force sensor to measure tensile force f suffered by infusion bottle
draw;
Step 3, micro-control unit is according to t=(F
draw-F
bottle)/(Δ F/ Δ t) calculate liquid in infusion bottle and to be totally lost required time t, and by related information transmission to night shift room;
Wherein, Δ F is the variable quantity of pulling force in the unit time, and Δ t is unit time variation amount.
Preferably, within certain unit interval, repeat step 2 and step 3 obtain the time t ' after upgrading, and by time t ' real-time Transmission to night shift room.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1, structure simple, be easy to realize, can be recycled, without the need to carrying out repacking processing to traditional infusion device, need add this device at hook place, top, and can be recycled.
2, can the Real-Time Monitoring time and terminate warning function, patient accurately can set transfusion time according to the wish of oneself, and accomplish the seamless connection with other matters, reasonable arrangement works at hand.
3, medical personnel can obtain patient fluid infusion's information in time so that fluid infusion in time and end transfusion, accomplish without any confusion, in perfect order.
Accompanying drawing explanation
Fig. 1 is pulling force sensor structural representation of the present invention;
Fig. 2 is structure principle chart of the present invention.
Fig. 3 is control method flow chart of the present invention.
Number in the figure is specific as follows: 1-pulling force sensor, 2-wire.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 2, the present invention devises a kind of transfusion monitoring device, inventive point is: a kind of transfusion time supervising device, it is characterized in that: comprise the pulling force sensor being arranged on hook place, transfusion device top and the micro-control unit be connected with pulling force sensor, described micro-control unit comprises a communication module, computing unit; Described pulling force sensor, is uploaded to micro-control unit for pulling force suffered by measurement infusion bottle; Described computing unit, the data for measuring according to pulling force sensor calculate liquid in infusion bottle and to be totally lost required time; Described communication unit, is sent to night shift room for the temporal information calculated by computing unit.
This device also comprises the display unit and alarm unit that are connected with micro-control unit; Described display unit, for showing liquid volume in infusion bottle in real time; Described alarm unit, for giving the alarm after liquid in infusion bottle is totally lost.
Wherein, the optional HX711 of described pulling force sensor, described communication module preferably selects XL02-232AP1 wireless communication module, and described micro-control unit is AT89C52, and described display module is 1 cun of LED display.
General principles: as shown in Figure 3, from physical knowledge, the infusion bottle that suspended on mainly is subject to two power: one is gravity G straight down, and another is tensile force f straight up.Due to F=G, therefore infusion bottle is static and aerial.
Liquid in addition in infusion bottle:
m＝v*ρ
G＝m*g
F＝G
By above three formulas, can obtain: F=v* ρ * g
Owing to being constant, therefore: F=k*v
Wherein K is constant, and in the tensile force f that known infusion bottle is subject to and bottle, liquid volume V is linear.So by measuring tensile force f, volume V can be obtained.
Based on above inference, native system by the variable quantity of infusion bottle under tension in one period of short time of measurement, and does computing with the tensile force f be now subject to and can obtain infusing and terminate required time t:
T=(F
draw-F
bottle)/(Δ F/ Δ t)
Note: Δ F is the variable quantity of pulling force in the unit time, Δ t is unit time variation amount;
How to resist outside interference: because infusion bottle is not actionless, it is all subject to the effect of various power all the time.This can bring various interference to the measurement of gravity of the present invention.In order to reduce the impact of this interference as far as possible, the weight rate obtained computing in software program of the present invention has carried out simple first-order filtering, and this can reduce the impact of High-frequency Interference effectively.But, so still inadequate, as infusion bottle suffer artificial apply rocking time, can suddenly change remaining time very serious.Still program in, by every three periods of change its remaining time change consistent time, just think that the data collected are correct data.By this way, the impact that outside large interference brings can be solved very well.Such as when defeated different medicinal liquid, some medicinal liquid causes patient infusion very pain, need to reduce and drip speed, at this moment, the transfusion time of previous calculations may change, in order to avoid this situation, pulling force sensor can gather the pulling force of multiple period of change, calculate remaining time, if normal rule, what at this moment just can think that pulling force sensor gathers is just data.If not normal rule, then continuing to select the cycle, until when the remaining time reaching calculating changes consistent, determine the data bit right value gathered, being at this moment uploaded to medical personnel by gathering the data calculated by communication module.
As shown in Figure 1, pulling force sensor 1 adopts special sensor detection chip HX711, pulling force sensor collection measures pulling force in real time, measurement data is passed and gives micro-control unit by wire 2, and HX711 aly aims at high-precision electronic scale and 24 A/D converter chips designing.Compared with other chip of the same type, this integrated chip comprises other peripheral circuit required for chip of the same type such as regulated power supply, on-chip clock oscillator, has advantages such as integrated level is high, fast response time, strong interference immunity.Reduce the complete machine cost of electronic scale, improve the Performance And Reliability of complete machine.The interface of this chip and rear end MCU chip and programme very simply, all control signals are driven by pin, without the need to programming to the depositor of chip internal.Input selector switch can choose arbitrarily passage A or channel B, is connected with the low-noise programmable amplifier of its inside.The programmable-gain of passage A is 128 or 64, and corresponding full scale differential input signal amplitude is respectively ± 20mV or ± 40mV.Channel B is then 64 fixing gains, detects for systematic parameter.The regulated power supply provided in chip can provide power supply directly to the A/D converter in external sensor and chip, without the need to other analog power on system board.Clock oscillator in chip is without any need for external device.The auto-reset function that powers on simplifies the initialization procedure of start.
The data of pulling force sensor collection often can not directly read, because pulling force sensor HZ711 sensor detection measured value knots modification is little, be difficult to directly process, therefore need the AD mouth delivering to single-chip microcomputer after amplifying circuit again to carry out analog digital conversion to obtain enough precision.
Because the transfusion room of hospital is smaller, and transfusion hitch point is more.For this situation, wireless module uses Zigbee to be most suitable.But consider other problems, wireless module still selects XL02-232AP1.
In order to the convenience developed, the change of data can be understood in real time, device adds display screen, for showing transfusion liquid volume and the change of required time of being totally lost.Display screen, without the need to too large, has selected then the LED display of 1 cun.
The present invention is with AT89C52 series monolithic chip for core, by corresponding pulling force sensor and wireless communication module, by the efficiency solution feeding back to school and patient real-time for patient's present infusion temporal information.For the reality that present hospitals transfusion is chaotic, in line with taking patient as core, attach most importance to hospital work efficiency and this transfusion time monitoring solution of proposing solves this long-term existence of transfusion time but the correct problem solved, hospital transfusion order is effectively safeguarded, and solves patient and cannot know the anxiety sense of time.And in actual measurement, its result can be satisfactory.This programme deisgn product is exquisite, effectively, with low cost, and later stage extendible probability is large simultaneously, can large-arealy use at clinical application.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, makes a variety of changes under can also or else departing from the prerequisite of present inventive concept.
Claims (8)
1. a transfusion time supervising device, is characterized in that: comprise the pulling force sensor being arranged on hook place, transfusion device top and the micro-control unit be connected with pulling force sensor, described micro-control unit comprises a communication module, computing unit; Described pulling force sensor, is uploaded to micro-control unit for pulling force suffered by measurement infusion bottle; Described computing unit, the data for measuring according to pulling force sensor calculate liquid in infusion bottle and to be totally lost required time; Described communication unit, is sent to night shift room for the temporal information calculated by computing unit.
2. transfusion time supervising device according to claim 1, is characterized in that: this device also comprises the display unit and alarm unit that are connected with micro-control unit; Described display unit, for showing liquid volume in infusion bottle in real time; Described alarm unit, for giving the alarm after liquid in infusion bottle is totally lost.
3. transfusion time supervising device according to claim 1, is characterized in that: described pulling force sensor is HX711.
4. transfusion time supervising device according to claim 1, is characterized in that: described communication module is wireless communication module, and described wireless communication module adopts XL02-232AP1.
5. transfusion time supervising device according to claim 1, is characterized in that: described micro-control unit is AT89C52.
6. transfusion time supervising device according to claim 2, is characterized in that: described display module is 1 cun of LED display.
7. a transfusion time method for supervising, is characterized in that: comprise the steps:
Step one, adds a pulling force sensor and connected micro-control unit at hook place, transfusion device top;
Step 2, adopts pulling force sensor to measure tensile force f suffered by infusion bottle
draw;
Step 3, micro-control unit is according to t=(F
draw-F
bottle)/(Δ F/ Δ t) calculate liquid in infusion bottle and to be totally lost required time t, and by related information transmission to night shift room;
Wherein, Δ F is the variable quantity of pulling force in the unit time, and Δ t is unit time variation amount.
8. to infuse according to claim 7 control method, it is characterized in that: within certain unit interval, repeat step 2 and step 3 obtains the time t ' after upgrading, and by time t ' real-time Transmission to night shift room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410492110.4A CN104274882A (en) | 2014-09-24 | 2014-09-24 | Infusion time monitoring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410492110.4A CN104274882A (en) | 2014-09-24 | 2014-09-24 | Infusion time monitoring device and method |
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| Publication Number | Publication Date |
|---|---|
| CN104274882A true CN104274882A (en) | 2015-01-14 |
Family
ID=52250536
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410492110.4A Withdrawn CN104274882A (en) | 2014-09-24 | 2014-09-24 | Infusion time monitoring device and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104491954A (en) * | 2014-12-24 | 2015-04-08 | 东华大学 | Intelligent control system capable of reflecting injection remaining time of medical infusion apparatus |
| CN104721907A (en) * | 2015-03-25 | 2015-06-24 | 魏振花 | Safe electronic intravenous infusion device |
| CN106075649A (en) * | 2016-05-25 | 2016-11-09 | 沈阳航空航天大学 | Infusion alarm with time display function and control method thereof |
| CN109966583A (en) * | 2019-04-11 | 2019-07-05 | 李玉玲 | A kind of nursing Portable intelligent transfusion management device |
| CN109999262A (en) * | 2019-04-04 | 2019-07-12 | 中国科学院苏州生物医学工程技术研究所 | Infusion support with quantitative constant speed warning function |
| CN114042204A (en) * | 2015-12-08 | 2022-02-15 | 深圳迈瑞科技有限公司 | Infusion pump and method and device for alarming blockage on infusion pipeline of infusion pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3656138A (en) * | 1970-03-18 | 1972-04-11 | Interscience Corp | Infusion monitoring device |
| CN102688536A (en) * | 2012-06-18 | 2012-09-26 | 陈勃 | Intelligent transfusion system |
| CN203564598U (en) * | 2013-09-30 | 2014-04-30 | 陕西金合泰克信息科技发展有限公司 | Automatic transfusion promoting device convenient to move |
| CN203736623U (en) * | 2014-02-28 | 2014-07-30 | 王会芳 | Liquid drop speed monitoring device |
-
2014
- 2014-09-24 CN CN201410492110.4A patent/CN104274882A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3656138A (en) * | 1970-03-18 | 1972-04-11 | Interscience Corp | Infusion monitoring device |
| CN102688536A (en) * | 2012-06-18 | 2012-09-26 | 陈勃 | Intelligent transfusion system |
| CN203564598U (en) * | 2013-09-30 | 2014-04-30 | 陕西金合泰克信息科技发展有限公司 | Automatic transfusion promoting device convenient to move |
| CN203736623U (en) * | 2014-02-28 | 2014-07-30 | 王会芳 | Liquid drop speed monitoring device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104491954A (en) * | 2014-12-24 | 2015-04-08 | 东华大学 | Intelligent control system capable of reflecting injection remaining time of medical infusion apparatus |
| CN104721907A (en) * | 2015-03-25 | 2015-06-24 | 魏振花 | Safe electronic intravenous infusion device |
| CN114042204A (en) * | 2015-12-08 | 2022-02-15 | 深圳迈瑞科技有限公司 | Infusion pump and method and device for alarming blockage on infusion pipeline of infusion pump |
| CN106075649A (en) * | 2016-05-25 | 2016-11-09 | 沈阳航空航天大学 | Infusion alarm with time display function and control method thereof |
| CN109999262A (en) * | 2019-04-04 | 2019-07-12 | 中国科学院苏州生物医学工程技术研究所 | Infusion support with quantitative constant speed warning function |
| CN109966583A (en) * | 2019-04-11 | 2019-07-05 | 李玉玲 | A kind of nursing Portable intelligent transfusion management device |
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Application publication date: 20150114 |