CN2452518Y - Device for automatic control of intravenous drip - Google Patents
Device for automatic control of intravenous drip Download PDFInfo
- Publication number
- CN2452518Y CN2452518Y CN 00266528 CN00266528U CN2452518Y CN 2452518 Y CN2452518 Y CN 2452518Y CN 00266528 CN00266528 CN 00266528 CN 00266528 U CN00266528 U CN 00266528U CN 2452518 Y CN2452518 Y CN 2452518Y
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- CN
- China
- Prior art keywords
- microprocessor
- circuit
- speed
- motor
- drip speed
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an automatic control device for intravenous drips, which is characterized in that a comparison shaping circuit is arranged among a photoelectric emission circuit, a receiving conversion amplifying circuit and a microprocessor, wherein, the output of the microprocessor is connected with a stepping motor driving circuit, the output of a stepping motor is used for controlling a clamping mechanism of a flexible pipe, and the microprocessor is externally connected with an input keyboard and a display. The utility model can effectively remove the interference of burrs near a zero level, the accuracy of drip speed detection is improved, and a microprocessor continuously emits pulse number with corresponding quantities and the drip speed is adjusted in time according to the differences of the actual detection drip speed and the set drip speed; accuracy is ensured; the adjusting and positioning time is shortened.
Description
This utility model belongs to the medical intravenous drip auto-controller, is used for according to predefined speed automatic dynamic ground control transfusion speed, and infusion monitoring situation.
In existing technology, vein automatic infusion controller by Great Wall, Xi'an non-standard equipment factory and The People's Hospital's invention, this vein automatic infusion controller adopts the infrared electro change-over circuit that liquid droping speed is detected, when not having dropping liquid to drip, the infrared electro receiving tube is directly accepted the infrared light that infrared transmitting tube sends, the signal of telecommunication that produces by photoelectric switching circuit is the constant relatively value of intensity, when dropping liquid drips, because dropping liquid is absorbed infrared light or reflects, the infrared signal that makes infrared receiving tube can not receive infrared signal or receive a little less than, make the corresponding signal of telecommunication produce a detectable pulse.In this technology, when dropping liquid drips, adopt the rising edge of microcomputer CPU paired pulses to detect, when detecting rising edge of a pulse, intervalometer begins to clock, when dropping liquid drips next time, detect the rising edge of next pulse, the CPU timing stops, and by calculating the interval of two pulses, detects the speed that drips speed.Then, send instruction by microcomputer and drive the servomotor rotation, the control clamping device to servo circuit.Though this technology has realized the control to transfusion drip speed theoretically, but practicality is not enough, there is following technical shortcoming: 1, because the scrambling of dropping liquid, and the induction coil of servomotor, microprocessor and other circuit can produce burr interference (pulse) signal, make CPU produce maloperation, drip speed and detect inaccurate.2, in existing technology, when detecting the actual speed of dripping with predefined speed when variant, microcomputer is exported one and is corrected pulse between every, servo circuit will be according to this pulse, switch on to servomotor, drive its and rotate, thereby make the actual number that drips approach preset value one by one by the adjustment of pulse one by one, reach with preset value identical till.But, owing to can only once adjust between per two, after adjusting once to there be certain stabilization time, and when adjusting by the clamping device of adjusting flexible pipe, the adjustment interval is non-linear with the relation of controlled speed, when the precision that requires to control is higher (step-length adjusted of each clamping device hour), drip speed and dripping under the bigger situation of fast difference of setting in advance in initial reality, the time that needs are long just can be adjusted to desired speed.
The purpose of this utility model is intended to overcome above-mentioned the deficiencies in the prior art, proposes a kind ofly can effectively overcome burr and disturb, and shortens the intravenous drip automaton of the adjustment time of dripping speed.
Realize the technical scheme of above-mentioned purpose: a kind of intravenous drip automaton, comprise photoemission, receive converter amplifier circuit, microprocessor, motor and drive circuit, the flexible pipe clamp mechanism is characterized in that: be provided with the comparison shaping circuit between photoemission, reception converter amplifier circuit and microprocessor, motor is a motor, the output of microprocessor connects stepper motor driving circuit, the output control flexible pipe clamp mechanism of motor.
The external input keyboard of microprocessor.
The external liquid crystal display of microprocessor.
Adopt technique scheme, its beneficial technical effects is: 1, adopt comparison circuit, by reasonable setting comparative level, effectively remove near the burr of zero level and disturb.Become pulse signal through the signal after the shaping, eliminated the interferential maloperation of microprocessor Yin Maoci, improved and detected the accuracy of dripping speed.2, behind the employing motor, when the speed of dripping that detection obtains is dripped speed when differing big with setting, microprocessor sends more umber of pulse continuously, make the corresponding step number of micro-step motor forward or reverse, when the speed of dripping that detection obtains is dripped speed and differed hour with setting, microprocessor sends less umber of pulse, makes the corresponding step number of micro-step motor forward or reverse.Overcome servomotor and dripped speed and dripping under the bigger situation of fast difference of setting in advance in initial reality, the time that needs are long just can be adjusted to and set the shortcoming of dripping speed, has promptly guaranteed precision, has shortened the time of adjusting to the right place again.Show that through actual detected this utility model can be adjusted to the right place within 1 minute, make vein dropping liquid automaton reliable operation, easy to use, precision is higher.
Below in conjunction with accompanying drawing, this utility model is further described by embodiment:
Fig. 1 is a structured flowchart of the present utility model.
Fig. 2 is the bonded line assumption diagram of a kind of electromechanics of Fig. 1.
Embodiment: in conjunction with Fig. 1～2, a kind of intravenous drip automaton, comprise the infrared light emission, receive converter amplifier circuit, the comparator shaping circuit, microprocessor (CPU), the micro-step motor drive circuit, micro-step motor (comprising decelerator), flexible pipe clamp mechanism and display and keyboard.
Infrared light radiating circuit: by two infrared light emitting diode D1, D2 series connection, Zener diode D3, resistance R 1 is formed, adjustable resistance R1 adjusts the glow current size, Zener diode D3 makes under the situation that voltage Vo changes can keep stable glow current, and Infrared is transmitted in the infrared receiving diode in another horizontal slot in the same plane with it by a horizontal slot.
Receive converter amplifier circuit: be made up of two infrared receiving diode D4, D5 series connection, resistance R 2, R3, R7 and homophase operational amplifier U1, pull-up resistor R7 meets working power V
Cc, the infrared diode D4, the D5 that receive in change-over circuit and the signal amplification circuit receive the light that emitting diode D1, D2 send, and convert optical signal to the signal of telecommunication.When drop drips, because most infrared lights are refracted, can not arrive reception diode D4, D5, make to produce a light pulse that light pulse becomes electric impulse signal Vo1 after this circuit conversion is amplified at receiving terminal.Otherwise, when dripless is dripped, diode D4, D5 conducting, Vo1 keeps low level.
Compare shaping circuit: on the one hand, because microprocessor can only be handled switching signal (0 and 1), the electric impulse signal after requirement will be amplified converts switching signal to.On the other hand, disturb because the induction coil of the scrambling of dropping liquid and servomotor and microprocessor can produce burr near zero level, the interference of burr is provided with the comparison shaping circuit near the zero level in order to have eliminated.Relatively shaping circuit is made up of an operational amplifier U2 and peripheral resistance R 4, R5, R6, by adjusting the standard of comparison voltage that R5, R6 adjust the end of oppisite phase input, pulse signal is imported by in-phase end, obtains by the switching signal Vo2 after the shaping at outfan.With the INTO of this signal input microprocessor, be the detection signal that drop drips.
Microprocessor (CPU) detects the speed of dropping liquid by the effective interval that detects between two dropping liquid pulse signals of software program, and send control signal, by stepper motor driving circuit, clamp mechanism (hose clip B) work that drives micro-step motor drive flexible pipe A reaches adjusts a purpose of dripping speed.For the control that makes dropping liquid can reach higher precision, can adjust to identical again very soon with the value of setting, when the speed of dripping that detection obtains is dripped speed when differing big with setting, microprocessor sends more umber of pulse continuously, make the corresponding step number of micro-step motor forward or reverse, drip speed and differ hour with setting when the speed of dripping that detection obtains, microprocessor sends less umber of pulse, makes the corresponding step number of micro-step motor E forward or reverse.
Microprocessor is selected the central processing unit of ATMEL 89 serial Flash single-chip microcomputer 89C51 as whole instrument for use.Because control signal is more, and microprocessor there is no need to connect external data, program storage, four P1, P2, P3, P4 mouths all are operated in the I/O mode, and when CPU did not work, CPU was in the power saving working method simultaneously, and was waken up by interrupt signal.
Display lcd is taked HJD802 ocra font ocr display module, and the 16*2 character shows.Include display buffer, inner display command, by P00～P07 of CPU, processor will content displayed and order successor LCD display circuit.And have backlight, when any button was pressed, backlight began bright 10 seconds, so that use evening.
Keyboard KEY: following button is set on the keyboard KEY that is connected with microprocessor CPU: (1) START/PAUSE: allow machine start working/halt (2) MODE: model selection, the parameter that selection will be transferred (3) UP: parameter raises (4) DOWN: parameter downward modulation (5) RESET: (6) OPEN resets: open (7) CLOSE: close P10～P17 that these switches connect microprocessor respectively.Microprocessor takes hunt mode to check the state of switch when work, and removes corresponding handling procedure according to detected state commentaries on classics.
Stepper motor driving circuit takes special IC 7407 to drive, and motor is selected motor E for use.Type of drive according to AB-BC-CD-DA.
Claims (3)
1, a kind of intravenous drip automaton, comprise photoemission, receive converter amplifier circuit, microprocessor, motor and drive circuit, the flexible pipe clamp mechanism is characterized in that: be provided with the comparison shaping circuit between photoemission, reception converter amplifier circuit and microprocessor, motor is a motor, the output of microprocessor connects stepper motor driving circuit, the output control flexible pipe clamp mechanism of motor.
2, according to the described intravenous drip automaton of claim 1, it is characterized in that: microprocessor is circumscribed with input keyboard.
3, according to the described intravenous drip automaton of claim 1, it is characterized in that: microprocessor is circumscribed with liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266528 CN2452518Y (en) | 2000-12-20 | 2000-12-20 | Device for automatic control of intravenous drip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266528 CN2452518Y (en) | 2000-12-20 | 2000-12-20 | Device for automatic control of intravenous drip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2452518Y true CN2452518Y (en) | 2001-10-10 |
Family
ID=33620589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00266528 Expired - Lifetime CN2452518Y (en) | 2000-12-20 | 2000-12-20 | Device for automatic control of intravenous drip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2452518Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764463A (en) * | 2012-07-26 | 2012-11-07 | 深圳圣诺医疗设备有限公司 | Infusion pump pulse compensation method and system |
| CN103007388A (en) * | 2012-12-13 | 2013-04-03 | 哈尔滨工程大学 | Portable intravenous infusion controller |
| CN105920697A (en) * | 2016-05-31 | 2016-09-07 | 无锡昊瑜节能环保设备有限公司 | Transfusion system with controllable transfusion speed |
-
2000
- 2000-12-20 CN CN 00266528 patent/CN2452518Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764463A (en) * | 2012-07-26 | 2012-11-07 | 深圳圣诺医疗设备有限公司 | Infusion pump pulse compensation method and system |
| CN102764463B (en) * | 2012-07-26 | 2013-11-20 | 深圳圣诺医疗设备有限公司 | Infusion pump pulse compensation method and system |
| CN103007388A (en) * | 2012-12-13 | 2013-04-03 | 哈尔滨工程大学 | Portable intravenous infusion controller |
| CN105920697A (en) * | 2016-05-31 | 2016-09-07 | 无锡昊瑜节能环保设备有限公司 | Transfusion system with controllable transfusion speed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN CITY KANGZHE PHARMACEUTICAL TECHNOLOGY DE Free format text: FORMER NAME OR ADDRESS: KANGZHE PHARMACEUTICAL CO., LTD, SHENZHEN CITY |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Kangzhe Pharmaceutical Co., Ltd, Shenzhen City Patentee before: Kangzhe Pharmaceutical Co., Ltd, Shenzhen City |
|
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN KANGZHE MEDICAL DEVICES LTD. Free format text: FORMER OWNER: SHENZHEN CITY KANGZHE PHARMACEUTICAL TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20070511 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070511 Address after: 518029, Guangdong, Shenzhen province Futian District Bagua four Road No. seventh factory floor, No. six Patentee after: Shenzhen Kang Kang Medical Instruments Co., Ltd. Address before: 518029, Guangdong province Shenzhen Bagua 3 road deep medicine building two floor, Zhang Lingyan turn Patentee before: Kangzhe Pharmaceutical Co., Ltd, Shenzhen City |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN KANGZHE MEDICINE SCIENCE AND TECHNOLOGY D Free format text: FORMER NAME: SHENZHEN KANGZHE MEDICAL CARE APPARATUS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Building six, No. seventh, kitchen No. four, Bagua Road, Shenzhen, Guangdong, Futian District Province: 518029 Patentee after: Kangzhe Pharmaceutical Co., Ltd, Shenzhen City Address before: Building six, No. seventh, kitchen No. four, Bagua Road, Shenzhen, Guangdong, Futian District Province: 518029 Patentee before: Shenzhen Kang Kang Medical Instruments Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN KANGZHE INDUSTRIAL INVESTMENT CO., LTD. Free format text: FORMER OWNER: SHENZHEN KANGZHE MEDICINE SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD Effective date: 20100406 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518029 F/6,ZHONGCHU 7TH FACTORY BAGUA 4TH ROAD, FUTIAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 518029 FLOOR 3,NEW AND SPECIAL MEDICINE BUILDING,EAST SECTION, BAGUA 3 ROAD,FUTIAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100406 Address after: Three East Road 518029 Guangdong city of Shenzhen province Futian District eight new Teyao third floor of the building Patentee after: Shenzhen Kangzhe Industry Investment Co., Ltd. Address before: 518029, Guangdong, Shenzhen province Futian District Bagua four Road No. seventh factory floor, No. six Patentee before: Kangzhe Pharmaceutical Co., Ltd, Shenzhen City |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20101220 Granted publication date: 20011010 |