CN201637586U - Tester special for sliding performance of medical injector - Google Patents
Tester special for sliding performance of medical injector Download PDFInfo
- Publication number
- CN201637586U CN201637586U CN2009202105411U CN200920210541U CN201637586U CN 201637586 U CN201637586 U CN 201637586U CN 2009202105411 U CN2009202105411 U CN 2009202105411U CN 200920210541 U CN200920210541 U CN 200920210541U CN 201637586 U CN201637586 U CN 201637586U
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- injector
- tester
- medical purpose
- sliding capability
- loading force
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Abstract
The utility model discloses a tester special for a sliding performance of a medical injector, which comprises an intelligent controller, a force measuring mechanism, a force measuring sensor, a loading mechanism, a printer, a drive mechanism, a test platform, a clamp and the like, wherein the intelligent controller includes a main board, a liquid crystal display, a keyboard, a power supply and the like. Chinese characters are displayed on a screen. Cursors are controlled by the keyboard to carry out option, operation and setting-up. The tester is a reliable manner for testing the sliding performance of the medical injector provided by the national medical testing institution, the medical injector manufacturer and the medical injector user, which is regarded as the indispensable testing instrument for these departments and units. The tester is attractive in appearance, small in overall size and convenient in manual operation.
Description
Technical field
The utility model relates to a kind of injector for medical purpose sliding capability dedicated tester.
Background technology
Development along with modern society, the healthy of people is the problem that enjoys care forever, in medical industry, syringe is the indispensable instruments of medical personnel, and the quality of itself is the able-bodied powerful guarantee to patient, as for the quality that how guarantees syringe, the World Health Organization (WHO), department of national governments, HMOs are all paid attention to especially, have also formulated many standards for this reason.At the syringe sliding, in our country, GB15810-2001 " disposable sterilized syringe " related standards and manufacturing and designing.Be specifically designed to the surveying instrument of test injection device sliding capability.All it has been carried out detailed regulation etc. related standards.These standards are early implementing, but since incomplete, the detecting instrument of detection means condition scarce general all can not implement well in a lot of places of China; The producer of these syringes of domestic production also can't guarantee the quality of their product well.
1, in China's instrument production industry, do not have which producer basically for the enforcement that guarantees these standards provides powerful measure at present, determined national medical testing agency, syringe manufacturer and syringe applying unit all to form difficulty in this respect.Syringe sliding capability testing tool has a few manufacturer production in the international market, and for our country, this instrument relies on import, and what imported product adopted is the english software interface, and operation is inconvenience very, and cost an arm and a leg inconvenient maintenance, expense height.Be that national assets run off in a large number on the one hand, can not satisfy the detection requirement of the numerous relevant departments of China, unit on the other hand.So domestic a lot of departments and units concerned all adopt self-control or entrust some producer's customizations " syringe sliding capability tester ", but be subjected to the multiple condition restriction of human and material resources, aspects such as delivery cycle, profile, operation, control, performance and protection at instrument all are short of very much, can not satisfy the needs of these units to it well at all.
2, the unit that uses of our national medical testing agency, syringe manufacturer and injector for medical purpose adopts structure as shown in Figure 1 as detecting instrument it to be tested to syringe sliding capability tester mostly at present.
11 ' expression is the anchor clamps of tester among the figure, 12 ' what represent is the midpoint that surface level is about syringe; 13 ' what represent is measured syringe; 14 ' expression is tank, 15 ' expression be water 16 ' expression be to connect to use conduit, 17 ' what represent is the regulating device that is suitable for different nominal capacity syringes.
The principle of this structured testing syringe sliding capability dedicated tester is that the driven by motor screw mandrel rotates, the motion of drive syringe, power value size shows by LED, by the manual record data, the power value curve that can not show whole process, can not intuitively reflect overall process, and shift motion is operated very inconvenience by the control of artificial adjustment limit switch.Cause manual record time-consuming, inaccurate, not directly perceived, operation inconvenience, defectives such as error is big, this kind instrument can only be said the test of in form tentatively having done the syringe sliding capability, and this all can not coincide with the expert of the standard of formulation and all injector for medical purpose fabricators, user and overseer's requirement, can not get a desired effect.
3, said above the continuation, utilize this instrument to come test injection device sliding capability, following many-sided deficiency is arranged: the machine profile is not attractive in appearance, uses inconvenient; Operation is very inconvenient; Data read, handle not science, be not suitable for tester's management, analysis, form etc.Domestic several production syringe sliding capability tester producer this several aspect also good solution.
Summary of the invention
The purpose of this utility model is, a kind of injector for medical purpose sliding capability dedicated tester is provided, and to overcome existing tester stability, poor reliability, uses inconvenience, and unreasonable structure is to the demanding technical matters of experimental enviroment.
In order to achieve the above object, the technical solution of the utility model is as follows:
A kind of injector for medical purpose sliding capability dedicated tester, by intelligent controller, force measuring machine, force cell, load maintainer, printer, driving mechanism, gear train, test platform and anchor clamps totally 8 parts form, they seem separate, all be closely connected in fact, finish the peculiar function of finishing equipment jointly.Wherein intelligent controller partly is made up of mainboard, LCDs, keyboard, power supply etc., screen adopts full Chinese to show, carry out option, operation, setting with the Keyboard Control cursor, its function comprises the control of precision of the collection of control, loading force value of power value load time and demonstration, loading force value and the control of complete machine action.What driving mechanism was selected is stepper motor or servomotor, and selection can be in the process of loading force like this, and loading velocity can be controlled, carries out speed closed loop control; The collection of loading force value comprises high-speed a/d conversion and many CPU co-ordination; The demonstration of loading force value comprises selects for use man-machine interface or the full Chinese of lattice lcd to show, can graphic presentation.Screen adopts full Chinese to show, carries out option, operation, setting with the Keyboard Control cursor.
This tester is these departments, the indispensable detecting instrument of unit for medical testing agency of country, syringe manufacturer and injector for medical purpose applying unit provide the method for testing of reliable injector for medical purpose sliding capability.
We do human oriented design, adopt single chip microcomputer loading, control loaded speed and load time, loading force value, collection numerical value to handle; The liquid crystal display 50174 (LCD) that adopts Japanese OPTEX to produce shows, four knob keyboard operations, full menu in Chinese prompting; Adopt mini-printer output report data and RS232 serial communication.This designing technique advanced person, man-machine interface close friend, operating aspect, loading are accurately, more reasonable, the data processing of result more helps advantages such as people perform an analysis.
Description of drawings
Fig. 1 is for having the structural representation of traditional injector for medical purpose sliding capability dedicated tester now;
Fig. 2 is the structural representation of injector for medical purpose sliding capability dedicated tester of the present utility model;
Fig. 3 is the power value load maintainer synoptic diagram of injector for medical purpose sliding capability dedicated tester of the present utility model;
Fig. 4 gathers the ultimate principle block diagram for the power value;
Fig. 5 is a power value acquisition interface synoptic diagram;
Label declaration among Fig. 2
21 ' expression be intelligent controller 22 ' expression be force measuring machine
23 ' expression be force cell 24 ' expression be load maintainer
25 ' expression be printer 26 ' expression be driving mechanism
27 ' expression be gear train 28 ' expression be test platform and anchor clamps
29 ' expression be syringe anchor clamps 210 ' expression be negative
Embodiment
With reference to the accompanying drawings 2 to accompanying drawing 5, provide better embodiment of the present utility model, and described in detail below, enable to understand better function of the present utility model, characteristics.
First 2 integral body are with reference to the accompanying drawings introduced the structure of tester of the present utility model.As shown in Figure 2, the testing tool of injector for medical purpose sliding of the present utility model comprise intelligent controller 21 ', force measuring machine 22 ', force cell 23 ', load maintainer 24 ', printer 25 ', driving mechanism 26 ', gear train 27 ', test platform 28 ' and anchor clamps 29 ' and syringe anchor clamps 210 ' etc. partly form, wherein intelligent controller partly is made up of mainboard, LCDs, keyboard, power supply etc.Screen adopts full Chinese to show, carries out option, operation, setting with the Keyboard Control cursor.This tester is these departments, the indispensable detecting instrument of unit for medical testing agency of country, injector for medical purpose manufacturer and medical needle applying unit provide the method for testing of reliable injector for medical purpose sliding capability.Power value load maintainer, as shown in Figure 3, adopt Single-chip Controlling stepper motor 31 ' rotation, with a synchronous belt wheel 32 ' and be with 33 synchronously ' a drive trapezoidal screw 34 ', again by leading screw drive slide block 35 ' move up and down drive be fixed on the anchor clamps 36 that are attached thereto ' on syringe, thereby to force cell 37 ' load or unload.Stepper motor 31 ' and trapezoidal screw 34 ' between ratio of gear be 1: 1, trapezoidal screw 34 ' a silk tooth spacing be 1mm, when stepper motor 31 ' a rotations circle, slide block 35 ' just is rising or decline 1mm correspondingly.When 35 ' time of slide block, be fixed on anchor clamps 36 ' on injector for medical purpose promptly to force cell 37 ' reinforcing.
2, the control of loading force value speed, because we select when designing is stepper motor, we can reach requirement easily as long as change the frequency of driving pulse when driving it.In design process, adopt speed closed loop control, a given fixed speed is controlled the frequency of given driving pulse again by feedback voltage, and the rotating speed of stepper motor can be constant, satisfies standard-required.The product 55BF004-II type of stepper motor Changzhou BMW Electric Machine Co., Ltd that we select, power is 55W, and driving voltage is three-phase six-wire system direct current 30V, and step angle is 1.5 ° of each pulses, and the highest startup frequency is 5kHz.Stepper motor 31 in the accompanying drawing 3 ' rotating speed determined slide block 34 ' point-to-point speed, slide block 34 ' speed that moves has also just correspondingly determined the speed of power value loading, when the loading force value is too fast, has changed the frequency of driving pulse, make it step-down, the loading force value will be corresponding slack-off; Cross when slow when the loading force value, change the frequency of driving pulse, make it to uprise, the loading force value will correspondingly accelerate.The control of employing speed closed loop can be satisfied loading speed 100mm/min fully, and error is not more than 5mm/min.Driving pulse is by the I/O mouth P1.0 mouth output of single chip microcomputer 89C52 (CPU), and the stepper motor rotation direction is by the I/O mouth P1.1 mouth output of single chip microcomputer 89C52 (CPU).
3, the control of power value load time, the clock control chip DS12C887 that we select U.S. DALLAS company to produce, DS12C887 real-time clock (RTC) is embedded with the century register, can solve Y2K problem (Y2K) in hardwareization ground.Embedded lithium battery of DS12C887 and 32.768MHz quartz crystal oscillator can guarantee can use continuously 10 years not having to accomplish non-effumability timing under the situation of power-supply system, make things convenient for the time of origin of recording events.10 years errors of DS12C887 are not more than 0.3 second, and this has guaranteed to load the high precision that clocks.
4, the collection of loading force value and demonstration, we convert the loading force value to digital signal by measuring amplifier, high-precision a/d converter at design, gather this signal by single chip microcomputer 89C52 (CPU) again, through handling, deliver to liquid crystal display 50174 (LCD) demonstration that Japanese OPTEX produces by serial port, we select chip for driving is the liquid crystal driver module of the fluffy manufacturing far away of Tsing-Hua University, we reserve the RS232 serial interface circuit in addition, can be directly the power value that loads be sent to upper control microcomputer, so that data processing in enormous quantities, store, put on record.Ultimate principle as shown in Figure 4.Handle in the numerical process at CPU, the pick-up transducers signal all is instantaneous, and average frequency acquisition is 5kHZ; But for show, storage, in the loading force value gatherer process, adopt the zero-bit tracking, follow the tracks of zero-bit at any time, remake Filtering Processing, show to reach load, storage is stable for a long time, effect accurately.Load sensor, measuring amplifier (AD8221), high-precision a/d converter (AD7665), single chip microcomputer (CPU), display driver (1330SE), LCD, RS232 serial line interface are respectively shown in following accompanying drawing 5.
5, the control of the size of loading force value, that A/D converter was selected for use when we designed is high-precision a/d converter AD7665, and it is the A/D converter up to 16, and average frequency acquisition is 5kHZ.For the different medical needle of each model, standard code loading force value is inequality.The liquid crystal display 50174 (LCD) that this instrument utilizes Japanese OPTEX to produce shows, the menu in Chinese prompting operation, four knob keyboards are selected, are controlled, after choosing pin number, single chip microcomputer accesses EEPROM in pin number storage and the sheet to import and answers the loading force value, does closed-loop control by the signal of sensor sensing when doing the sliding test in loading procedure, when the loading force value is equal to pre-tension, stop to load, reach the accurate of loading force value; When doing the sliding test,,, also guaranteed the accurate of test result with the resistance of high-precision a/d converter high speed acquisition syringe with the constant speed drive syringe.
6, for the selection of man-machine interface, what we selected for use is the liquid crystal display 50174 that Japanese OPTEX produces, and full Chinese shows, friendly interface, clear, readability, apparent power value of liquid crystal display and time, displacement curve in loading force value or the sliding process.Handle for test result, our design reaches among 20 numerical value storages and the control system RAM, can do report form statistics, analysis, also can output to little panel printer, output to upper control microcomputer by the RS232 interface by 81C55.
7, for the processing and the distribution of working cell, this tester employing method is that the demonstration of data acquisition, motor-driven and data is independently controlled by three CPU respectively with processing.They one of them be the running of control step motor, and one of them is the collection of doing the AD data, also has a CPU to be used for accepting keyboard commands, to drive liquid crystal display, to do data processing or the like.Carry out data communication by the synchronous serial interface connection between three CPU, take out 2 I/O mouths between just per two CPU separately and connect, the information of each chip chamber is transmitted mutually by them.
This testing machine in the machine profile, manipulate, many-side such as control and security protection invents improvement, satisfy the demand of above-mentioned field fully to global function, high stability, improve the technology content of domestic this industry greatly, satisfy the requirement of GB15810-2001 " injector for medical purpose sliding capability tester test method " fully.
Above-described; it only is preferred embodiment of the present utility model; be not in order to limit scope of the present utility model; be that every simple, equivalence of doing according to the claims and the description of the utility model application changes and modification, all fall into the claim protection domain of the utility model patent.
Claims (5)
1. injector for medical purpose sliding capability dedicated tester, it is characterized in that, dedicated tester by intelligent controller, force measuring machine, force cell, load maintainer, printer, driving mechanism, gear train, test platform and anchor clamps totally 8 parts form, finish the peculiar function of finishing equipment jointly.
2. injector for medical purpose sliding capability dedicated tester as claimed in claim 1 is characterized in that, what described driving mechanism was selected is stepper motor or servomotor.
3. injector for medical purpose sliding capability dedicated tester as claimed in claim 1, it is characterized in that described intelligent controller function comprises the control of precision of the collection of control, loading force value of power value load time and demonstration, loading force value and the control of complete machine action.
4. injector for medical purpose sliding capability dedicated tester as claimed in claim 3 is characterized in that, the collection of described loading force value comprises high-speed a/d conversion and many CPU co-ordination.
5. injector for medical purpose sliding capability dedicated tester as claimed in claim 3 is characterized in that, the demonstration of described loading force value comprises selects for use man-machine interface or the full Chinese of lattice lcd to show, can graphic presentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202105411U CN201637586U (en) | 2009-10-09 | 2009-10-09 | Tester special for sliding performance of medical injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202105411U CN201637586U (en) | 2009-10-09 | 2009-10-09 | Tester special for sliding performance of medical injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637586U true CN201637586U (en) | 2010-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202105411U Expired - Fee Related CN201637586U (en) | 2009-10-09 | 2009-10-09 | Tester special for sliding performance of medical injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201637586U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091089A (en) * | 2013-01-09 | 2013-05-08 | 深圳市计量质量检测研究院 | Controllable type medical equipment handle loading testing machine |
| CN103134674A (en) * | 2013-02-05 | 2013-06-05 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Device and method used for detection of sliding performance of matching part |
| CN108593280A (en) * | 2018-06-27 | 2018-09-28 | 上海市医疗器械检测所 | Sliding performance of syringe test device and test method |
| CN109990993A (en) * | 2019-04-02 | 2019-07-09 | 山东省医疗器械产品质量检验中心 | A kind of powered inj ection instrument flow and pressure experimental device and its working method |
| CN116878856A (en) * | 2023-09-06 | 2023-10-13 | 长沙巨翊医疗科技有限公司 | Device and method for testing movement parameters of push injection component |
-
2009
- 2009-10-09 CN CN2009202105411U patent/CN201637586U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091089A (en) * | 2013-01-09 | 2013-05-08 | 深圳市计量质量检测研究院 | Controllable type medical equipment handle loading testing machine |
| CN103091089B (en) * | 2013-01-09 | 2015-09-23 | 深圳市计量质量检测研究院 | Controllable type medical equipment handle loading tester |
| CN103134674A (en) * | 2013-02-05 | 2013-06-05 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Device and method used for detection of sliding performance of matching part |
| CN108593280A (en) * | 2018-06-27 | 2018-09-28 | 上海市医疗器械检测所 | Sliding performance of syringe test device and test method |
| CN109990993A (en) * | 2019-04-02 | 2019-07-09 | 山东省医疗器械产品质量检验中心 | A kind of powered inj ection instrument flow and pressure experimental device and its working method |
| CN116878856A (en) * | 2023-09-06 | 2023-10-13 | 长沙巨翊医疗科技有限公司 | Device and method for testing movement parameters of push injection component |
| CN116878856B (en) * | 2023-09-06 | 2023-11-28 | 长沙巨翊医疗科技有限公司 | Device and method for testing movement parameters of push injection component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20131009 |