CN204142738U - Cleaning needle and sample analyzer - Google Patents
Cleaning needle and sample analyzer Download PDFInfo
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- CN204142738U CN204142738U CN201420452510.8U CN201420452510U CN204142738U CN 204142738 U CN204142738 U CN 204142738U CN 201420452510 U CN201420452510 U CN 201420452510U CN 204142738 U CN204142738 U CN 204142738U
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Abstract
The utility model discloses a kind of cleaning needle and sample analyzer.Described cleaning needle, comprise injection needle and aspirating needle, described injection needle comprises the first laminating section and stick up straight section be connected, described aspirating needle comprises the second laminating section and the cooperation section along described second laminating elongated segment, described first laminating section and described second section of fitting fits, described cooperation section and describedly to stick up in a predetermined angle between straight section, described predetermined angle is 3 °-10 °, and the length of described cooperation section be longer than described in stick up the length of straight section.Cleaning needle structure described in the utility model is simple, is easy to install, and solves the problem that cleaning fluid easily spills, and makes injection needle not easily contaminated, and cleaning performance is better and reduce the percent crystallization in massecuite of injection needle.
Description
Technical field
The utility model relates to the cleaning needle field in biochemical immunity analysis, particularly, relates to a kind of cleaning needle for chemical illumination immunity analysis instrument and sample analyzer.
Background technology
Existing Full-automatic chemiluminescence immunoassay analysis meter is as the one in biochemical immunity analyser, and more employing chemiluminescence particulate immuno analytical method, detects the antigen in sample, antibody and analysis thing.That is: wrap and to be captured molecule (antigen by the magnetic particle attached bag of specific mark, antibody or virion), special antigen, antibody in analyte are combined and form antigen antibody complex, react with specific enzyme-to-substrate again, release photon, by detecting luminous value to calculate testing concentration.And before adding substrate, need reagent unnecessary in reaction tube to be washed ensure that result is accurate, thus need to adopt the device of cleaning needle and note cleaning fluid to make it repeatedly clean.
Cleaning needle structure comprises cleaning needle erecting frame, buffer spring, injection needle and aspirating needle, in cleaning process, aspirating needle is communicated with vacuum pump, thus the waste liquid in absorption reaction tube, and injection needle is communicated with the water source of band pressure, thus cleaning fluid is injected in reaction tube, injection needle and cleaning needle are all fixed on the toilet seat of cleaning apparatus.The installation of buffer spring can make cleaning needle better more stably touch bottom reaction tube, ensures imbibition effect stability.
Chinese Patent Application No. is disclose a kind of anti-extension liquid cleaning needle in the patented claim of CN200620016023.2, injection needle and the aspirating needle of this cleaning needle are tight, the needle point of aspirating needle is longer than the needle point of injection needle slightly, aspirating needle also offers the angle of opening surface to injection needle, so can be convenient to aspirating needle the extension liquid at injection needle needle point place is siphoned away, but ensure that aspirating needle effectively can siphon away the extension liquid at injection needle needle point place, the length of described aspirating needle and injection needle slightly should be grown and can not be long, otherwise can not reach above-mentioned effect.And when waste liquid drawn by aspirating needle, injection needle is also in below waste liquid liquid level, causes the pollution of injection needle.And the length of the injection needle of this structure and aspirating needle is closely, therefore, to while fluid injection and washing lotion time, injection needle and aspirating needle are all positioned at below liquid level, and therefore cleaning performance is bad.
For preventing hanging liquid, usually need injection needle and aspirating needle to fit, but injection needle aspirating needle junction can be caused like this to hang the easy crystallization of liquid, cause cross pollution, if but the angle making both separate is too large, can liquid splash be caused again.
Utility model content
Technical problem to be solved in the utility model is to provide that a kind of structure is simple, injection needle is not easily polluted, cleaning performance is good and the cleaning needle of reduction injection needle percent crystallization in massecuite, and is provided with the sample analyzer of above-mentioned cleaning needle.
The technical scheme in the invention for solving the above technical problem is:
A kind of cleaning needle is provided, comprise injection needle and aspirating needle, described injection needle comprises the first laminating section and stick up straight section be connected, described aspirating needle comprises the second laminating section and the cooperation section along described second laminating section axially-extending, described first laminating section and described second section of fitting fits, described cooperation section and describedly to stick up in a predetermined angle between straight section, described predetermined angle is 3 °-10 °, and the length of described cooperation section be longer than described in stick up the length of straight section.
The utility model is the cooperation section of predetermined angle by setting and sticks up straight section, and coordinate the length of section be longer than described in stick up the length of straight section, solve the problems of the technologies described above, first, when waste liquid drawn by described aspirating needle, injection needle remains on the waste liquid liquid level in reaction tube, unlikely pollution injection needle, and fluid injection is stablized, cleaning fluid can not spill, secondly, to while fluid injection and washing lotion, aspirating needle is positioned at below waste liquid liquid level, injection needle is positioned at more than waste liquid liquid level and orientating reaction inside pipe wall, cleaning, Blending Efficiency of Blending is good, again, described injection needle tip end is away from the outer wall of described aspirating needle, thus the outer wall hanging liquid of aspirating needle that the outer wall avoiding being injected into during described injection needle fluid injection aspirating needle causes, finally, present inventor is found by test of many times, by arranging angle in the scope of 3 °-10 °, effectively can improve the phenomenon of the easy crystallization of injection needle outer wall, compared to the cleaning needle of angle not within the scope of 3 °-10 °, the percent crystallization in massecuite of its injection needle obviously reduces by more than 95%.
Further, described cooperation section and the described predetermined angle stuck up between straight section are 3 °-8 °.
Further, described cooperation section and the described predetermined angle stuck up between straight section are 4.5 °.
Further, the length of described cooperation section be at least described in stick up 1.5 times of the length of straight section.
Further, described injection needle comprises the first linkage section that section of fitting with described first is connected, and described first linkage section is connected with extraneous pressure water source.
Further, described aspirating needle comprises the second linkage section that section of fitting with described second is connected, and described second linkage section is connected with extraneous vacuum pump.
Further, described cleaning needle comprises the tightening device of fixing described injection needle and described aspirating needle.
Further, described tightening device is a sleeve, and described sleeve offers and passes and the axially extending bore fixedly held for described first laminating section and described second section of fitting.
Further, described sleeve is that the side of toilet seat protrudes out formation, and described toilet seat offers the hole be connected with the through hole of described sleeve.
The utility model also provides a kind of sample analyzer being provided with above-mentioned cleaning needle.This sample analyzer comprises reaction tray assembly, sample and reagent storage dish assembly, detection components and the Conventional components such as the sample needle assembly being provided with above-mentioned cleaning needle, and each building block and annexation each other thereof are well-known to those skilled in the art.
To sum up, the beneficial effects of the utility model are: stick up described in arranging between straight section with the described section of cooperation in predetermined angular, make injection needle end orientating reaction inside pipe wall, avoid cleaning fluid to spill, the percent crystallization in massecuite of obvious reduction injection needle outer wall, reduces cross pollution, arranges simultaneously and coordinates the length of section to be longer than the length of sticking up straight section, stick up straight section described in can making to be unlikely and to stretch in waste liquid, thus avoid injection needle and be stained with extension waste liquid.
Accompanying drawing explanation
Fig. 1 is the structural representation of the cleaning needle shown in the utility model preferred embodiment;
Fig. 2 is the amplification assumption diagram of part-structure in Fig. 1;
Mark and corresponding parts title in accompanying drawing: cleaning needle 100, injection needle 10, aspirating needle 20, first linkage section 11, first laminating section 12, stick up straight section 13, second linkage section 21, second laminating section 22, coordinate section 23, sleeve 30, toilet seat 40.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but embodiment of the present utility model is not limited thereto.
Embodiment 1
Refer to Fig. 1, the cleaning needle 100 shown in the utility model preferred embodiment, comprise injection needle 10 and aspirating needle 20.
Described injection needle 10 comprises the first linkage section 11, first laminating section 12 and sticks up straight section 13, described first linkage section 11 is connected with the water source of the band pressure of extraneous cleaning apparatus, described first linkage section 11 is connected with the described straight section 13 that sticks up by described first laminating section 12, the described straight section 13 that sticks up extends to form along with the described first direction of axial deflection one predetermined angular β of fitting section 12, stick up the inwall of the end orientating reaction pipe of straight section 13 described in making, be more conducive to rinse the magnetic bead on inwall.Described first laminating section 12 and stick up straight section 13 and match with described aspirating needle 20.
Incorporated by reference to consulting Fig. 2, described aspirating needle 20 comprises the second linkage section 21, second laminating section 22 and coordinates section 23, described second linkage section 21 is connected with the vacuum pump of extraneous cleaning apparatus, described second linkage section 21 is connected with described cooperation section 23 by described second laminating section 22, described second laminating section 22 and described first section 12 of fitting fits tightly setting, compact conformation, not only reduces device and taken up space, also reduce the extension liquid measure between injection needle 10 and aspirating needle 20.Described second laminating section 22 is coaxially arranged with the described section of cooperation 23, predetermined angle β is had between the axle center of described cooperation section 23 and described axle center of sticking up straight section 13, the end orientating reaction inside pipe wall of straight section 13 is stuck up described in making, avoid spilling and being more conducive to the magnetic bead that reaction tube is adsorbed to rinse out of cleaning fluid, make cleaning, Blending Efficiency of Blending better, simultaneously described injection needle 10 tip end can also be made away from the outer wall of described aspirating needle 20, thus the outer wall hanging liquid of aspirating needle 20 that the outer wall avoiding being injected into during described injection needle 10 fluid injection aspirating needle 20 causes.In the present embodiment, this angle β is 3 °-10 °, effectively can reduce the percent crystallization in massecuite of injection needle 10 outer wall, reduces cross pollution, compared to the injection needle 10 of angle β not in above-mentioned scope, the injection needle 10 outer wall percent crystallization in massecuite described in the present embodiment obviously reduces by more than 95%.Be appreciated that this angle β can preferably 3 °-8 °, further preferably 4.5 °, 6 °, when the best is 4.5 °, the percent crystallization in massecuite of its injection needle 10 can reduce by more than 97%.The described length L sticking up straight section 13 is less than the length L ' of described cooperation section 23, when ensureing that described cooperation section 23 stretches under waste liquid liquid level, the described straight section 13 that sticks up still is positioned at more than waste liquid liquid level, thus when making described cooperation section 23 draw waste liquid, describedly stick up that straight section 13 is unlikely to be polluted, and injection needle 10 highly remains in reaction tube, its fluid injection is stablized, and can not spill.In the present embodiment, the length L ' of described cooperation section 23 be described in stick up more than 1.5 times of the length L of straight section 13.
Be appreciated that, described cleaning needle 100 also comprises the tightening device that described injection needle 10 can be tightened together with described aspirating needle 20, described tightening device can be clamping band, also can be sleeve 30, in the present embodiment, described sleeve 30 is sheathed on described first laminating section 12 and fits outside section 22 with described second, is appreciated that, described sleeve 30 is provided with axial through hole (not shown), and this through hole can pass for described first laminating section 12 and described second section 22 of fit and hold fixing.
Be appreciated that described sleeve 30 is that the side of toilet seat 40 in extraneous cleaning apparatus protrudes out formation, and described toilet seat 40 offer the hole be connected with the through hole on described sleeve 30, can pass with described aspirating needle 20 for described injection needle 10.
Embodiment 2
The utility model second embodiment also provides a kind of and comprises the sample analyzer being provided with the cleaning needle 100 provided in above-mentioned first embodiment.This analytical equipment is conventional Biochemical Analyzer or chemical illumination immunity analysis instrument, this analytical equipment comprises reaction tray assembly, sample and reagent storage dish assembly, the Conventional components such as sample needle assembly and detection components, wherein, sample needle assembly can install fixing above-mentioned cleaning needle 100, although do not provide the annexation between the concrete structure of this sample analyzer and each structure member in the present embodiment 2, but to those skilled in the art, the Conventional components of this sample analyzer and annexation thereof are common and who knows, such as application number is the patent of CN200510101335.3 or CN201110243705.2, disclose the Conventional components of sample analyzer.Therefore, to those skilled in the art, the structure of existing sample analyzer and the cleaning needle 100 how embodiment 1 to be provided are installed in sample analyzer is very clearly.
To sum up, cleaning needle 100 described in the utility model, stick up described in arranging between straight section 13 with the described section of cooperation 23 in predetermined angular, make injection needle 10 end orientating reaction inside pipe wall, avoid cleaning fluid and spill, and obviously reduce the percent crystallization in massecuite of injection needle 10 outer wall, reduce cross pollution, arrange simultaneously and coordinate the length of section 23 to be longer than the length of sticking up straight section 13, stick up straight section 13 described in can making and be unlikely and stretch in waste liquid, thus avoid injection needle 10 and be stained with extension waste liquid.
As mentioned above, the utility model can be realized preferably.
The above; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model; according to technical spirit of the present utility model; within spirit of the present utility model and principle; the any simple amendment that above embodiment is done, equivalently replace and improve, within the protection domain all still belonging to technical solutions of the utility model.
Claims (10)
1. a cleaning needle, it is characterized in that, comprise injection needle (10) and aspirating needle (20), described injection needle (10) comprises the first laminating section (12) and stick up straight section (13) be connected, described aspirating needle (20) comprises the second laminating section (22) and the cooperation section (23) along described second laminating section (22) axially-extending, described first laminating section (12) fits with the described second section (22) of fitting, described cooperation section (23) and described sticking up between straight section (13) are a predetermined angle, described predetermined angle is 3 °-10 °, and the length of described cooperation section (23) be longer than described in stick up the length of straight section (13).
2. cleaning needle according to claim 1, is characterized in that, described cooperation section (23) and the described predetermined angle stuck up between straight section (13) are 3 °-8 °.
3. cleaning needle according to claim 2, is characterized in that, described cooperation section (23) and the described predetermined angle stuck up between straight section (13) are 4.5 °.
4. the cleaning needle according to any one of claim 1-3, is characterized in that, the length of described cooperation section (23) be at least described in stick up 1.5 times of the length of straight section (13).
5. cleaning needle according to claim 4, is characterized in that, described injection needle (10) comprises the first linkage section (11) that section (12) of fitting with described first is connected, and described first linkage section (11) is connected with extraneous pressure water source.
6. cleaning needle according to claim 4, is characterized in that, described aspirating needle (20) comprises the second linkage section (21) that section (22) of fitting with described second is connected, and described second linkage section (21) is connected with extraneous vacuum pump.
7. cleaning needle according to claim 4, is characterized in that, described cleaning needle (100) comprises the tightening device of fixing described injection needle (10) and described aspirating needle (20).
8. cleaning needle according to claim 7, is characterized in that, described tightening device is a sleeve (30), and described sleeve (30) offers and passes and the axially extending bore fixedly held with the described second section (22) of fitting for described first laminating section (12).
9. cleaning needle according to claim 8, is characterized in that, described sleeve (30) is that the side of toilet seat (40) protrudes out formation, and described toilet seat (40) offers the hole be connected with the through hole of described sleeve (30).
10. a sample analyzer, is characterized in that, described sample analyzer is provided with cleaning needle as claimed in any one of claims 1-9 wherein (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420452510.8U CN204142738U (en) | 2014-08-12 | 2014-08-12 | Cleaning needle and sample analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420452510.8U CN204142738U (en) | 2014-08-12 | 2014-08-12 | Cleaning needle and sample analyzer |
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| Publication Number | Publication Date |
|---|---|
| CN204142738U true CN204142738U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420452510.8U Active CN204142738U (en) | 2014-08-12 | 2014-08-12 | Cleaning needle and sample analyzer |
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| CN (1) | CN204142738U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040680A (en) * | 2016-07-28 | 2016-10-26 | 盐城拜明生物技术有限公司 | Cleaning head |
| CN110076155A (en) * | 2018-01-25 | 2019-08-02 | 深圳市新产业生物医学工程股份有限公司 | Cleaning assembly, wiper mechanism and chemiluminescence detector |
| CN110125076A (en) * | 2018-02-08 | 2019-08-16 | 成都深迈瑞医疗电子技术研究院有限公司 | Magnetic bead cleans separator, magnetic bead cleaning separation method and chemical illumination immunity analysis instrument |
| CN112170361A (en) * | 2020-10-09 | 2021-01-05 | 嘉兴晶铸生物科技有限公司 | Integrated cleaning device and integrated cleaning structure assembly thereof |
-
2014
- 2014-08-12 CN CN201420452510.8U patent/CN204142738U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040680A (en) * | 2016-07-28 | 2016-10-26 | 盐城拜明生物技术有限公司 | Cleaning head |
| CN110076155A (en) * | 2018-01-25 | 2019-08-02 | 深圳市新产业生物医学工程股份有限公司 | Cleaning assembly, wiper mechanism and chemiluminescence detector |
| CN110076155B (en) * | 2018-01-25 | 2024-04-26 | 深圳市新产业生物医学工程股份有限公司 | Cleaning assembly, cleaning mechanism and chemiluminescent detector |
| CN110125076A (en) * | 2018-02-08 | 2019-08-16 | 成都深迈瑞医疗电子技术研究院有限公司 | Magnetic bead cleans separator, magnetic bead cleaning separation method and chemical illumination immunity analysis instrument |
| CN112170361A (en) * | 2020-10-09 | 2021-01-05 | 嘉兴晶铸生物科技有限公司 | Integrated cleaning device and integrated cleaning structure assembly thereof |
| CN112170361B (en) * | 2020-10-09 | 2023-09-22 | 嘉兴晶铸生物科技有限公司 | Integrated cleaning device and integrated cleaning structure assembly thereof |
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| C14 | Grant of patent or utility model | ||
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Address after: 610000 4 Building 8, two road, Chengdu, Sichuan Patentee after: Mike Medical Electronics Ltd Address before: 610000 1 floors, 5 buildings and 16 Road, Chengdu high tech Zone, Sichuan Patentee before: SICHUAN MAKER BIOMEDICAL ELECTRONIC CO., LTD. |