CN104623759A - Multi-channel micro-injection pump - Google Patents
Multi-channel micro-injection pump Download PDFInfo
- Publication number
- CN104623759A CN104623759A CN201410694745.2A CN201410694745A CN104623759A CN 104623759 A CN104623759 A CN 104623759A CN 201410694745 A CN201410694745 A CN 201410694745A CN 104623759 A CN104623759 A CN 104623759A
- Authority
- CN
- China
- Prior art keywords
- module
- injection pump
- injection
- adopts
- fpga
- Prior art date
- 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.)
- Pending
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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
- A61M5/142—Pressure infusion, e.g. using pumps
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
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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
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M2005/14208—Pressure infusion, e.g. using pumps with a programmable infusion control system, characterised by the infusion program
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
- G01N2035/0401—Sample carriers, cuvettes or reaction vessels
- G01N2035/0429—Sample carriers adapted for special purposes
- G01N2035/0434—Sample carriers adapted for special purposes in the form of a syringe or pipette tip
Abstract
The invention relates to the field of modern electronics, in particular to a multi-channel micro-injection pump. The multi-channel micro-injection pump is composed of a computer software control module, a main control chip module, a stepping motor driving module, a stepping motor and a sensor module in a sequence connection mode. The other end of the sensor module is connected with the main control chip module. The multi-channel micro-injection pump has an even deceleration and acceleration injection function, multiple injection pumps can be controlled to work in a linkage mode, and a good man-machine conversion interface and a good data processing function of a computer are used for achieving automatic control. A combination of ARM+FPGA is adopted for hardware, the advantages of an excellent logic time sequence function and good parallel processing performance of an FPGA are brought into full play, high subdivision of stepping motor drivers improves injection precision, multiple sensors are used for detecting the injection state, and intelligent precise injection and protection of an injector are successfully achieved.
Description
Technical field
The present invention relates to hyundai electronics field, be specifically related to a kind of multichannel micro-injection pump.
Background technology
Micro-injection pump is a kind of instrument carrying out micro-injection for a long time often used in clinical treatment and life science, and this instrument is mainly used in arteriovenous transfusion, and blood transfusion and precision chemical are tested.Both at home and abroad the subject matter of micro-injection pump is that precision is not high now, and generally only realizes single channel and at the uniform velocity inject.And some occasion is as often required in food inspection chromatography, and even speed change injects reagent.Therefore even acceleration or even deceleration syringe pump is designed, and coordinated signals multiple stage syringe pump, realize human computer conversation's date processing and be necessary.
Summary of the invention
The present invention is intended to propose a kind of multichannel micro-injection pump providing even acceleration or even deceleration.
Technical program of the present invention lies in:
A kind of multichannel micro-injection pump, by the computer software control module be connected in turn, Master control chip module, step motor drive module, motor and sensor assembly, wherein, the sensor assembly other end connects Master control chip module.
Preferably, the mode that described Master control chip module adopts ARM and FPGA to be connected to each other, wherein, ARM is also connected with input through keyboard module, LCD MODULE, RS232 interface modular converter, audible alarm module and power supply and crystal oscillator module in turn; FPGA is connected with pressure transducer, motor driver and rotary encoder.
More preferably, described rotary encoder adopts E6A2 systematic encoder, is made up of the primary key dish connected in turn, phase demodulation dish, optical system and photoelectric comparator.
Preferably, the THB7128 driving chip that described step motor drive module adopts, in order to enjoy a double blessing, bridge OSFET drives, the maximum 3.3A of current value.
Preferably, described sensor assembly adopts resistance strain type pressure sensor.
Or preferably, described ARM adopts TM32F103 processor.
Or preferably, described FPGA adopts CYCLONEII series EP2C5.
Technique effect of the present invention is:
The present invention proposes a kind of multichannel injection pump with even acceleration and deceleration function of injection, and can work by coordinated signals multiple stage syringe pump, the man-machine dialog interface utilizing computer good and data processing function realize Automated condtrol.Hardware of the present invention adopts the combination of ARM+FPGA; give full play to the advantage of the superior logical sequence function of FPGA and parallel processing; the height segmentation of stepper motor driver improves injection precision; apply multiple sensor to detect inject state, successfully achieve intelligent precise injection and the protection to syringe.
Accompanying drawing explanation
Fig. 1 is the system connection layout of a kind of multichannel micro-injection pump of the present invention.
Fig. 2 is the structural representation of Master control chip module.
Detailed description of the invention
A kind of multichannel micro-injection pump, by the computer software control module be connected in turn, Master control chip module, step motor drive module, motor and sensor assembly, wherein, the sensor assembly other end connects Master control chip module.
Wherein, the mode that Master control chip module adopts ARM and FPGA to be connected to each other, wherein, ARM is also connected with input through keyboard module, LCD MODULE, RS232 interface modular converter, audible alarm module and power supply and crystal oscillator module in turn; FPGA is connected with pressure transducer, motor driver and rotary encoder.Rotary encoder adopts E6A2 systematic encoder, is made up of the primary key dish connected in turn, phase demodulation dish, optical system and photoelectric comparator.The THB7128 driving chip that step motor drive module adopts, in order to enjoy a double blessing, bridge OSFET drives, the maximum 3.3A of current value.Sensor assembly adopts resistance strain type pressure sensor.ARM adopts TM32F103 processor.FPGA adopts CYCLONEII series EP2C5.
Computer by RS232 serial ports and Master control chip model calling, by the monitoring software of autonomous Design, can the duty of monitor and managment syringe pump in real time, full-automation can be realized after operation and process.Master control chip module is made up of ARM and FPGA and peripheral circuit, FPGA produces the electric impulse signal required for motor, send step motor drive module to, pulsqe distributor in step motor drive module distributes to each phase Exciting Windings for Transverse Differential Protection of motor electric impulse signal by the mode of regulation, thus drives stepping motor rotor running.Meanwhile be arranged on the real work situation that rotary encoder on motor shaft and pressure transducer monitor motor in real time, because FPGA has the advantages that hardware processes in real time, the data of sensor synchronously can pass to FPGA, when rotary encoder has stopped coding, and FPGA sends pulse signal again, motor driver then can be stopped to operate and buzzing warning at once, enter locked rotor condition; Pressure transducer record pressure exceed maximum pressure limiting time, also can stop machine operation, and computer prompted and buzzing are reported to the police at once.
Resistance strain type pressure sensor, its operation principle is pasted onto on various elastic sensing element by a kind of resistance strain gage, when elastic sensing element is subject to the effect of external force, generation is strained, strain is converted into the change of resistance by resistance strain gage again, and then increased resistance value becomes change value of pressure by digital-to-analogue conversion.
Claims (7)
1. a multichannel micro-injection pump, it is characterized in that: by the computer software control module be connected in turn, Master control chip module, step motor drive module, motor and sensor assembly, wherein, the sensor assembly other end connects Master control chip module.
2. as claim 1 multichannel micro-injection pump, it is characterized in that: the mode that described Master control chip module adopts ARM and FPGA to be connected to each other, wherein, ARM is also connected with input through keyboard module, LCD MODULE, RS232 interface modular converter, audible alarm module and power supply and crystal oscillator module in turn; FPGA is connected with pressure transducer, motor driver and rotary encoder.
3. as claim 2 multichannel micro-injection pump, it is characterized in that: described rotary encoder adopts E6A2 systematic encoder, is made up of the primary key dish connected in turn, phase demodulation dish, optical system and photoelectric comparator.
4. as claim 1 multichannel micro-injection pump, it is characterized in that: the THB7128 driving chip that described step motor drive module adopts, in order to enjoy a double blessing, bridge OSFET drives, the maximum 3.3A of current value.
5. as claim 1 multichannel micro-injection pump, it is characterized in that: described sensor assembly adopts resistance strain type pressure sensor.
6. as claim 1 multichannel micro-injection pump, it is characterized in that: described ARM adopts TM32F103 processor.
7. as claim 1 multichannel micro-injection pump, it is characterized in that: described FPGA adopts CYCLONEII series EP2C5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410694745.2A CN104623759A (en) | 2014-11-27 | 2014-11-27 | Multi-channel micro-injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410694745.2A CN104623759A (en) | 2014-11-27 | 2014-11-27 | Multi-channel micro-injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104623759A true CN104623759A (en) | 2015-05-20 |
Family
ID=53203299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410694745.2A Pending CN104623759A (en) | 2014-11-27 | 2014-11-27 | Multi-channel micro-injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104623759A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984437A (en) * | 2015-07-21 | 2015-10-21 | 苏州麦德迅医疗科技有限公司 | Infusion pump with double-chip architecture and method |
| CN107091765A (en) * | 2017-05-12 | 2017-08-25 | 杭州依美洛克医学科技有限公司 | The syringe pump apparatus of immunohistochemical stainer |
| CN109821109A (en) * | 2019-02-25 | 2019-05-31 | 广东乐之康医疗技术有限公司 | Multi-joint dynamic infusion method for controlling pump and its system |
| CN114134028A (en) * | 2022-01-29 | 2022-03-04 | 季华实验室 | Cell microinjection apparatus and control method |
-
2014
- 2014-11-27 CN CN201410694745.2A patent/CN104623759A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984437A (en) * | 2015-07-21 | 2015-10-21 | 苏州麦德迅医疗科技有限公司 | Infusion pump with double-chip architecture and method |
| CN104984437B (en) * | 2015-07-21 | 2019-01-11 | 苏州麦德迅医疗科技有限公司 | Infusion pump and method with dual chip framework |
| CN107091765A (en) * | 2017-05-12 | 2017-08-25 | 杭州依美洛克医学科技有限公司 | The syringe pump apparatus of immunohistochemical stainer |
| CN107091765B (en) * | 2017-05-12 | 2019-08-16 | 杭州依美洛克医学科技有限公司 | The syringe pump apparatus of immunohistochemical stainer |
| CN109821109A (en) * | 2019-02-25 | 2019-05-31 | 广东乐之康医疗技术有限公司 | Multi-joint dynamic infusion method for controlling pump and its system |
| CN114134028A (en) * | 2022-01-29 | 2022-03-04 | 季华实验室 | Cell microinjection apparatus and control method |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |