CN2445749Y - Medical electric pump transfusion system - Google Patents
Medical electric pump transfusion system Download PDFInfo
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- CN2445749Y CN2445749Y CN 00246749 CN00246749U CN2445749Y CN 2445749 Y CN2445749 Y CN 2445749Y CN 00246749 CN00246749 CN 00246749 CN 00246749 U CN00246749 U CN 00246749U CN 2445749 Y CN2445749 Y CN 2445749Y
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- transfusion
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- pump
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Abstract
The utility model provides a medical electric pump transfusion device which is mainly composed of a liquid bottle, a transfusion tube, a transfusion pump and an injection needle head. The utility model is characterized in that a micro motor uses a pulse width regulator with high stability to regulate speed in a mode stepless, and the micro motor is provided with a liquid supplementing device for additional dosage. A sensor monitor is arranged on a liquid flow tube. The utility model can immediately stop transfusion and send out alarm when the infusion of physic liquor is finished or the physic liquor is mixed with air. The transfusion device with wide flow range, stable flow speed control and high safety can supplement additional dosage liquid, does not need a person to watch, can satisfy the transfusion requirements of different patients and different sick conditions. The utility model is suitable for clinical use at hospitals.
Description
This utility model belongs to medical appliance, specifically a kind of medical electric pump transfusion device.
In hospital, usually can run into the situation that needs to give patient infusion.Conventional infusion method is that the liquid bottle is hung on suitable eminence, connect tube for transfusion, the pressure that utilizes the liquid level discrepancy in elevation to produce flows from top to bottom by tube for transfusion, little cuvette broad in the middle in two of tube for transfusion stage casing grafting, the upper end is import, the lower end is outlet, and be provided with a speed governing knob, connect injection needle by tube for transfusion, the flow velocity of medicinal liquid is judged with the speed of drop in the perusal small container, adapts to patient's situation then by adjusting knob control flow velocity.This traditional infusion model has simple advantage, and, body constitution preferably common patient light for the age do not have what problem, but it are on duty to need the nurse in the infusion process, otherwise, after being totally lost, medicinal liquid do not know, malpractice takes place easily.In addition,, require drip velocity to want slow to old especial patient, the patient who suffers from cardiovascular disease or infant, even slowly by 5～10ml/ minute; Instil for postoperative analgesia, not only amount will be lacked, and rate request is slower, even slowly by 1～2ml/ hour; In particular cases, the doctor is according to state of an illness needs, and for example the postoperative analgesia is instiled and also needed additionally to replenish a certain amount of medicinal liquid sometimes, or the like.These requirements, traditional transfusion device is out of the question, grasps badly, life danger appears in patient easily.
The purpose of this utility model provides a kind of medical electric pump transfusion device, and it can stably regulate, control the flow of medicinal liquid, and the medicinal liquid flow after regulating remains unchanged, and can satisfy the wide region transfusion requirement of clinical different patient, the different state of an illness.
In order to achieve the above object, the technical scheme that this utility model is taked is: this medical electric pump transfusion device comprises infusion bottle (or transfusion bag), tube for transfusion, infusion pump and injection needle, the tube for transfusion upper end connects infusion bottle, the lower end connects injection needle, in the middle of infusion pump was plugged on, epimere connect the import of pump, and hypomere connects delivery side of pump, it is characterized in that it also comprises:
-one micro machine M stepless speed adjusting gear, constitute by main transfusion controller IC 1 and extra fluid infusion controller IC 1 ' respectively, M+hold to be connected with the movable end c of one group of two-way contact, the output end vo of IC1 is connected with fixed contact d, the output end vo of IC1 ' ' be connected with fixed contact e, the movable end c ' of another group two-way contact is connected with power supply B+, fixed contact d ' is connected with the feeder ear Vcc of IC1, fixed contact e ' is connected with the feeder ear Vcc ' of IC1', two groups of two-way contacts are by driver K1 driven in synchronism, the common end grounding of circuit;
-one electronics
Rotating speed/
FlowMeter, its input 6 by capacitor C 3 and described M+hold to be connected, output end vo connects scale gauge outfit Vd, the common ground of circuit;
-one intervalometer IC3 intermittently, its output end vo is connected with the end of described driver K1, and another termination of driver is held altogether;
-one pipe inner liquid medicine contains the air monitoring alarm, and the output end vo of its agitator IC4 is connected with a B point of making dielectric capacitance sensor SC by described tube for transfusion, and the A point of SC is connected with the inverting input of I/V changer,
Converter output terminal is connected with the inverting input of inverting amplifier, the outfan of inverting amplifier is connected with the input of cymoscope, the outfan of cymoscope is connected with the inverting input of comparator, the output of comparator divides two-way, one the tunnel is connected with the power initiation end 2 of alarm IC7, another road is connected with the control end 5 of electrical switch IC6,1 termination power+end of IC6, the f end is connected with the end of driver K2, another termination of driver K2 is held altogether, the on/off of normally-closed contact control IC1～IC3 of K2.
The utility model has the advantages that: 1, the flow of medicinal liquid can be stablized adjusting control exactly, and the flow after regulating remains unchanged.2, medicinal liquid be totally lost or medicinal liquid in autostop and send chimes of doom when being mixed with air, it is on duty to need not the people, safe and reliable.3, flow-control wide ranges can satisfy the transfusion needs of clinical different patient, the different state of an illness.4, can replenish a certain amount of extra liquid as required.
Fig. 1 is the overall structure sketch map of this medical electric pump transfusion device.
Fig. 2 is the circuit diagram of control section.
Below in conjunction with accompanying drawing one step of this utility model work is described in detail.
In Fig. 1, the 1st, the medicinal liquid bottle, the 2nd, the epimere tube for transfusion, 2 ' is the hypomere tube for transfusion, last termination liquid bottle, following termination injection needle 8,3rd, medical special transfusion pump, model is yyb-1, is connected between the upper and lower tube for transfusion, and the import of pump connects pipe, and outlet connects down pipe.The 4th, decelerator, be the ordinary gear drive mechanism, output shaft 7 is connected with the infusion pump shaft, power shaft 6 is connected with the shaft of DC micromotor M, and for adapting to the wide region traffic requirement, decelerator is provided with 1: 1,100: 1 two kinds of output speeds, when requiring big flow with 1: 1, with output in 100: 1, recently realize during low discharge by the diameter that jackshaft push rod 5 changes travelling gear ,+,-be power access end of motor M.The rotating speed of M is controlled by the pulse-width modulator among Fig. 2.SC is a capacitance sensor, and it constitutes by making electrolyte by tube for transfusion 2 ' in the middle of two conductive plate A, the B, and pole plate can be made strip, also can make involutory semicircle, but two-plate can not be collided.Whether the effect of sensing capacitance is to have medicinal liquid to flow through in the infusion monitoring pipe; because the relative dielectric coefficient of medicinal liquid is about 80; and the relative dielectric coefficient of air is 1; make electrolyte and make dielectric electric capacitance change to differ 80 times approximately with medicinal liquid with air; therefore; when medicinal liquid be totally lost or medicinal liquid in behind the entrained air; capacitance can great changes will take place; utilizing the variation of capacitance to convert the treated processing of circuit of the signal of telecommunication to goes control to shut down and send alarm signal; can avoid the air admission human body, prevent malpractice.
Fig. 2 is the circuit diagram of control section, because the restriction of the page or leaf width of cloth divides two pages of pictures, two pages of composite diagrams 2.Mainly by micro machine stepless speed adjusting gear, electronics
Rotating speed/
FlowMeter, intermittently timing controller, liquid pipe inner liquid medicine contain the air monitoring alarm and working power GB forms, wherein:
Micro machine stepless speed adjusting gear (seeing the horizontal page or leaf mapping of accompanying drawing page 2 Lower Half) is made of the main transfusion controller on the micro machine M left side and the extra fluid infusion controller on the right, two circuit are just the same, all be to constitute by pulse-width modulator IC1 (model is CU001) and external component crystal TX, capacitor C 1, C2, resistance R 1～R4, S1 is that pulse width increases adjusting key, S2 is that pulse width reduces adjusting key, and Vo is an outfan.K1 is the contact that drives relay, switches usefulness, and one on the left side is main transfusion usefulness, just uses when one on the right has only the extra fluid infusion of needs.IC1 is a multifunctional controller, making pulse width modulation here uses, it adopts crystal oscillator to make clock signal, the output waveform degree of stability is high, range of accommodation is quite wide, its dutycycle can be between 1～96% continuously smooth regulate, press S1, pulse width slowly increases, press the S2 pulse width and can slowly reduce again, can carry out stepless speed regulation to micro machine without difficulty.Accompanying drawing page 2 top is
Rotating speed/
FlowMeter is made of ic chip 2 (model is 556 ), field-effect transistor V1, indicating graduation gauge outfit Vd, resistance R 5, R6, capacitor C 3～C6.R7 and LED 1 constitute power indicator.Its work process is: because its input is connected on the controller common output end C point, with trigger end 6 feet that add to IC2 behind the proportional pulse signal process of the rotating speed C3 differential, make mono-stable timing circuit produce the pulse of Fixed width, td=1.1R6C4, different rotating speeds has umber of pulse proportional with it, the pulse of monostable circuit output, through constant-current source V1 and C6 integration, acquisition is proportional to the voltage of rotating speed, therefore can on Vd, read the rotating speed number, become the flow number scale on dial plate, just can directly read flow the rotating speed number conversion.
Intermittently timing controller (seeing accompanying drawing page 3 top) is made of IC3 (model is 555), driving relay K 1, peripheral component semiconductor diode V2, V3, adjustable resistance RP1, RP2, resistance R 8, R9, capacitor C 7, C8.R10, LED2, R11, LED3 constitute display lamp, and LED3 during the transfusion (green) is bright, and stopping period LED2 (red) is bright.This circuit is many harmonic swing devices of an EDM Generator of Adjustable Duty Ratio, the access of V2, V3, charging and discharge loop are separated, and the access of RP1 and RP2, can adjust respectively the time that discharges and recharges of C7, can adjust respectively the high level and the low duration of output, just to adjusting respectively turn-on time and turn-off time, the length in timing and cycle can be adjusted according to actual needs.Method of adjustment is undertaken by following formula: turn-on time, t filled=0.693 (R8+RP1) C7; Intermittent time t is put=0.963 (R9+RP2) C7.The S3 that closes a switch can work.
Liquid pipe inner liquid medicine air monitoring alarm by multivibrator, capacitance sensor,
I (electric current)/
V (voltage)Changer, inverting amplifier, cymoscope, comparator and alarm are formed.Among the figure, IC4 (model is 555), resistance R 12, R13, capacitor C 9 constitute multivibrator; SC is a sensing capacitor; Ic chip 5 is four high guaily unit integrated packages (model is TLC27L4) of a low-power consumption, can work under the 3V single supply, and (also can use four high guaily unit integrated package LM324, but power supply is 5～15V), wherein, IC5a, resistance R 14～R16 constitute
Changer; IC5b, resistance R 14, R15, R17, R18 constitute inverting amplifier; Crystal diode V4, R21, R22, C10 constitute cymoscope; IC5c, R19, R20 constitute comparator; IC5d is empty need not; (model is that electrical switch, K2 drive relay for (TWH8778) to ic chip 6, and V5 is an isolating diode; Ic chip 7, capacitor C 11, buzzer HA constitute alarm, and LED4 is the light emitting diode with sound flutter, and R21 is a current-limiting resistance.
The output end vo of agitator IC4 connects the B point of sensing capacitance SC, the A point connects inverting input 2 feet of IC5a, outfan 1 foot of IC5a connects inverting input 6 feet of IC5b by R17, outfan 7 feet of IC5b connect the input of V4, the outfan of V4 connects inverting input 9 feet of IC5c, outfan 8 feet of IC5c are by isolating control end 5 feet of diode V5 connection IC6, and another road connects power initiation end 2 feet of IC7.The work process of circuit is: during normal infusion, tube for transfusion 2 ' has medicinal liquid to flow through, and the capacitance that sensing capacitance SC presents is bigger, and the oscillator signal of agitator IC4 output is sent into through the SC coupling from Vo output
Changer IC5a converts current signal to voltage signal output, after amplifying, IC5b carries out detection by V2, sending into the inverting input of IC5c of comparator and the reference voltage of in-phase input end again compares, because detecting circuit＞reference voltage, so comparator IC5c is output as low level, other circuit is not exerted an influence.When tube for transfusion 2 ' no medicinal liquid flows through, perhaps in the medicinal liquid during entrained air, the capacitance of sensing capacitance SC becomes very little, is equivalent to open circuit, and oscillator signal can not pass through SC, cymoscope V2 no-output, the reference voltage of the voltage＜in-phase input end of comparator IC5c inverting input, IC5c exports high level, and this high level divides two-way: the one road delivers to 2 feet of IC7, start alarm and send chimes of doom, synchronous signal lamp LED2 flicker; 5 feet of electrical switch IC6 are sent on another road, and switch conduction drives relay K 2 normally-closed contact is drawn back, and has cut off the power supply of IC1～IC3, the motor M stall, and transfusion stops at once.
Claims (1)
1, a kind of medical electric pump transfusion device, it comprises liquid bottle, tube for transfusion, infusion pump and injection needle, the tube for transfusion upper end connects the liquid bottle, the lower end connects injection needle, and in the middle of infusion pump was plugged on, epimere connect the import of pump, hypomere connects delivery side of pump, it is characterized in that, it also comprises:
-one micro machine M stepless speed adjusting gear, constitute by main transfusion controller IC 1 and extra fluid infusion controller IC 1 ' respectively, M+hold to be connected with one group of two-way contact movable end C, the output end vo of IC1 is connected with fixed contact d, the output end vo of IC1 ' ' be connected with fixed contact e, the movable end C ' of another group two-way contact is connected with power supply B+, fixed contact d ' is connected with the feeder ear Vcc of IC1, fixed contact e ' is connected with the feeder ear Vcc ' of IC1 ', two groups of two-way contacts are by driver K1 driven in synchronism, the common end grounding of circuit;
-one electronics
Rotating speed/
FlowMeter, its input (6) is connected with (+) end of described M by capacitor C 3, and output end vo connects scale gauge outfit Vd, the common end grounding of circuit;
-one intervalometer IC3 intermittently, its output end vo is connected with the end of described driver K1, and another termination of driver is held altogether;
-one pipe inner liquid medicine contains the air monitoring alarm, and the output end vo of its agitator IC4 is connected with a B point of making dielectric capacitance sensor SC by described tube for transfusion, the A point of SC and
The inverting input of changer connects,
Converter output terminal is connected with the inverting input of inverting amplifier, the outfan of inverting amplifier is connected with the input of cymoscope, the outfan of cymoscope is connected with the inverting input of comparator, the output of comparator divides two-way, one the tunnel is connected with the power initiation end (2) of alarm, another road is connected with the control end (5) of electrical switch IC6, (1) termination power (+) end of IC6, the f end is connected with the end of driver K2, another termination of driver K2 is held altogether, the on/off of normally-closed contact control IC1～IC3 of K2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00246749 CN2445749Y (en) | 2000-08-17 | 2000-08-17 | Medical electric pump transfusion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00246749 CN2445749Y (en) | 2000-08-17 | 2000-08-17 | Medical electric pump transfusion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2445749Y true CN2445749Y (en) | 2001-09-05 |
Family
ID=33605922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00246749 Expired - Fee Related CN2445749Y (en) | 2000-08-17 | 2000-08-17 | Medical electric pump transfusion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2445749Y (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361714C (en) * | 2004-09-13 | 2008-01-16 | 毛爱民 | Infusion pump capable of accurately controlling medicinal liquid flow |
| CN101332328B (en) * | 2007-06-28 | 2011-06-15 | 尕明 | Medical infusion device |
| CN102498487A (en) * | 2009-05-05 | 2012-06-13 | 康尔福盛303公司 | Model-based infusion site monitor |
| CN103316400A (en) * | 2013-07-03 | 2013-09-25 | 苏州泽德医疗器械有限公司 | Injector calibration method and injector calibration equipment |
| CN105025809A (en) * | 2013-03-15 | 2015-11-04 | C·R·巴德股份有限公司 | Urine monitoring systems and methods |
| CN105920703A (en) * | 2016-05-19 | 2016-09-07 | 王卫东 | Infusion flow rate monitoring instrument |
| CN106474635A (en) * | 2015-08-25 | 2017-03-08 | 住友重机械工业株式会社 | Neutron-capture therapy system |
| CN107308535A (en) * | 2017-08-10 | 2017-11-03 | 周钰杰 | A kind of closed-type negative-pressure drainage tube |
| CN107596494A (en) * | 2017-10-25 | 2018-01-19 | 王光耀 | The automatic infusion device for changing fluid infusion |
| CN109925570A (en) * | 2019-04-25 | 2019-06-25 | 鲁传文 | Portable electric infusion device |
| US11703365B2 (en) | 2020-07-14 | 2023-07-18 | C. R. Bard, Inc. | Automatic fluid flow system with push-button connection |
| US11911160B2 (en) | 2018-08-10 | 2024-02-27 | C. R. Bard, Inc. | Automated urine output measurement systems and methods thereof |
| US11931151B2 (en) | 2020-12-22 | 2024-03-19 | C. R. Bard, Inc. | Automated urinary output measuring system |
| US11938277B2 (en) | 2018-05-22 | 2024-03-26 | C. R. Bard, Inc. | Catheterization system and methods for use thereof |
| US12055249B2 (en) | 2020-07-21 | 2024-08-06 | C. R. Bard, Inc. | Automatic fluid flow system with retractable connection |
| US12083261B2 (en) | 2020-06-05 | 2024-09-10 | C. R. Bard, Inc. | Automated fluid output monitoring |
-
2000
- 2000-08-17 CN CN 00246749 patent/CN2445749Y/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361714C (en) * | 2004-09-13 | 2008-01-16 | 毛爱民 | Infusion pump capable of accurately controlling medicinal liquid flow |
| CN101332328B (en) * | 2007-06-28 | 2011-06-15 | 尕明 | Medical infusion device |
| CN102498487A (en) * | 2009-05-05 | 2012-06-13 | 康尔福盛303公司 | Model-based infusion site monitor |
| CN102498487B (en) * | 2009-05-05 | 2015-09-30 | 康尔福盛303公司 | Based on the infusion site monitor of model |
| CN105025809A (en) * | 2013-03-15 | 2015-11-04 | C·R·巴德股份有限公司 | Urine monitoring systems and methods |
| CN103316400A (en) * | 2013-07-03 | 2013-09-25 | 苏州泽德医疗器械有限公司 | Injector calibration method and injector calibration equipment |
| CN106474635A (en) * | 2015-08-25 | 2017-03-08 | 住友重机械工业株式会社 | Neutron-capture therapy system |
| CN105920703B (en) * | 2016-05-19 | 2022-06-03 | 中国人民解放军总医院 | Infusion flow monitor |
| CN105920703A (en) * | 2016-05-19 | 2016-09-07 | 王卫东 | Infusion flow rate monitoring instrument |
| CN107308535A (en) * | 2017-08-10 | 2017-11-03 | 周钰杰 | A kind of closed-type negative-pressure drainage tube |
| CN107596494A (en) * | 2017-10-25 | 2018-01-19 | 王光耀 | The automatic infusion device for changing fluid infusion |
| US11938277B2 (en) | 2018-05-22 | 2024-03-26 | C. R. Bard, Inc. | Catheterization system and methods for use thereof |
| US11911160B2 (en) | 2018-08-10 | 2024-02-27 | C. R. Bard, Inc. | Automated urine output measurement systems and methods thereof |
| CN109925570A (en) * | 2019-04-25 | 2019-06-25 | 鲁传文 | Portable electric infusion device |
| US12083261B2 (en) | 2020-06-05 | 2024-09-10 | C. R. Bard, Inc. | Automated fluid output monitoring |
| US11703365B2 (en) | 2020-07-14 | 2023-07-18 | C. R. Bard, Inc. | Automatic fluid flow system with push-button connection |
| US12055249B2 (en) | 2020-07-21 | 2024-08-06 | C. R. Bard, Inc. | Automatic fluid flow system with retractable connection |
| US11931151B2 (en) | 2020-12-22 | 2024-03-19 | C. R. Bard, Inc. | Automated urinary output measuring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |