CN103056124A - Compatible chip-removal type sampling needle cleaning device - Google Patents
Compatible chip-removal type sampling needle cleaning device Download PDFInfo
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- CN103056124A CN103056124A CN2011103164207A CN201110316420A CN103056124A CN 103056124 A CN103056124 A CN 103056124A CN 2011103164207 A CN2011103164207 A CN 2011103164207A CN 201110316420 A CN201110316420 A CN 201110316420A CN 103056124 A CN103056124 A CN 103056124A
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- cleaning device
- sampling needle
- mandrel
- chip removal
- removal type
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Abstract
The invention discloses a compatible chip-removal type sampling needle cleaning device. The compatible chip-removal type sampling needle cleaning device comprises a main body, an upper central spindle, a lower central spindle, a liquor inlet pipe and a liquor outlet pipe, wherein the center of the main body is a through hole, the upper central spindle and the lower central spindle are respectively arranged at the upper end and the lower end of the through hole of the main body, a position-limiting cavity which is used for circumferential direction position limiting of a sampling needle is formed in the center of the upper central spindle, the liquor inlet pipe and the liquor outlet pipe are both arranged on the main body, a liquor outlet cavity of the liquor outlet pipe is communicated with the upper central spindle and forms a gap with the lower central spindle, the gap is favorable for removing chip, and a liquor inlet cavity of the liquor inlet pipe is communicated with the center of the lower central spindle. The compatible chip-removal type sampling needle cleaning device has the advantages of being favorable for removing chip, good in cleaning effect, and easy to process and assemble.
Description
Technical field
The present invention relates to a kind of cleaning device, especially relate to a kind of when cellanalyzer is cleaned, the sampling needle cleaning device of compatible chip removal type.
Background technology
There are two kinds of modes of drawing blood sample in cellanalyzer: the suction sample of 1, uncapping, namely manually cap test tube is opened, and test tube is placed under the sampling needle inhale sample; 2, close lid and inhale sample, namely need not the manual unlocking cap test tube, wear cap test tube by the sampling pinprick, enter the test tube bottom and inhale sample.
Wherein, closing under the lid suction sample measurement pattern, penetrate cap test tube and extract in the cap test tube process at sampling needle, the sampling needle surface speckles with the cap test tube chip easily.Therefore, for residual blood sample and chip on the post-sampling pin of avoiding having sampled exert an influence to measurement, need to clean sampling needle by cleaning device.
General cleaning principle is now: be provided with inlet and liquid outlet in the cleaning device; Sampling needle moves to cleaning chambers, and this moment, cleaning fluid entered cleaning chambers from inlet, and sampling needle is washed, and liquid and chip sucking-off cleaning device after liquid outlet will clean by negative pressure enter at last to waste liquid barrel.If clean untotally, residual blood sample can bring pollution to cellanalyzer; If the untimely discharge cleaning chambers of cap test tube chip can stop up flushing channel, and may bring measuring system into and affect measurement result, so cleaning performance and row's chip ability are the key job performances of this cleaning device.
Existing sampling needle cleaning device (claiming again swab) with certain chip removal ability discloses such as US Patent No. 5603342 and US Patent No. 5408891 and Chinese patent CN101099969A.
The characteristics of swab are in the US Patent No. 5603342: 1) comprise swab main body, upper end cover, bottom end cover and stage casing mandrel are filled in the main body inner chamber with the stage casing mandrel first, then fill in upper end cover and bottom end cover, near inlet and liquid outlet, form large chamber, thereby be conducive to chip removal.Two large chambeies are divided into three sections straight cylinder vestibules with cavity, bottom end cover bottom reversed cone angle; 2) inlet is arranged in, and liquid outlet is arranged in down.The shortcoming of this patent is: the main body of 1) must first the stage casing mandrel being packed into, and then load onto end cap and bottom end cover, assemble sequence is had requirement, and the stage casing mandrel can not axial location in assembling process and easily stretch in the large chamber, affects chip removal ability; 2) cleaning fluid cleans sampling needle from top to bottom, has the leakage risk.
The characteristics of swab are in the US Patent No. 5408891: 1) comprise swab main body and upper end cover, swab main body cavity is divided into four sections, epimere is that chamber, large footpath, second segment are short path chamber, the 3rd section is conical cavity, the 4th section also is chamber, large footpath, and upper end cover is filled in and formed large chamber at liquid outlet after the main body and be beneficial to chip removal; 2) inlet axis and liquid outlet axis are in same plane, and inlet places the lower end, and liquid outlet places the upper end.The shortcoming of this patent is: 1) the swab main body is complicated, processing difficulties; 2) upper end cover can not axial location and is easily stretched in the large chamber, affects chip removal ability; 3) inlet and liquid outlet are uneven in axial distribution, pumping device is had relatively high expectations could realize preferably cleansing power.
The characteristics of swab are among the Chinese patent CN101099969A: 1) swab is divided into two parts, increases the chip removal space at inlet or liquid outlet formation square annular chamber after the combination, and cleaning chambers is the inner chambers that three sections internal diameters constantly increase from top to bottom; 2) inlet axis and liquid outlet axis are in same plane and be positioned at homonymy, and inlet places the lower end, and liquid outlet places the upper end.The shortcoming of this patent is: the right angle annular chamber has the right angle section, and the fluid passage has some setbacks, and chip difficulty is discharged swab and affected chip removal ability.
Summary of the invention
The invention provides and a kind ofly be beneficial to chip removal, possess good cleaning performance, simultaneously the easy sampling needle cleaning device of processing and assembling.
The present invention adopts following technical scheme to realize: a kind of sampling needle cleaning device of compatible chip removal type, and it comprises: the center is the main body of through hole; Be separately positioned on the through hole upper end of main body, upper mandrel and the lower mandrel of lower end, the center of upper mandrel is formed for sampling needle is carried out circumferentially spacing limit chamber; All be arranged on feed tube and drain pipe on the main body, going out between the upper mandrel of sap cavity connection and the lower mandrel in the drain pipe forms the space that is beneficial to chip removal, and the admission chamber in the feed tube is communicated with the center of lower mandrel.
Wherein, the through hole of main body upper end and lower end are distributed with the inconsistent upper positioning step of maximum outside diameter and lower positioning table terrace.
Wherein, the upper end of upper mandrel is provided with the multidiameter with upper positioning table terrace coupling, and the lower end of lower mandrel is provided with the multidiameter with lower positioning table terrace coupling.
Wherein, upper mandrel carries out axial location by upper positioning table terrace, and lower mandrel carries out axial location by lower positioning table terrace.
Wherein, be provided for cleaning device on the main body and be fixed on annular slot in the cellanalyzer.
Wherein, the centre bore of lower mandrel sets gradually from top to bottom and is buffering container cavity, conical cavity and cleaning chambers, and admission chamber is communicated with conical cavity.
Wherein, conical cavity has the more small-bore one terminal cleaning chambers that is communicated with, and is increased the negative pressure of cleaning chambers by the trunnion effect of reducing generation by conical cavity.
Wherein, be oppositely arranged two two path inlets that are positioned at the same level face at conical cavity.
Wherein, the axis of the axis of admission chamber and two path inlets is vertical and be in sustained height.
Compared with prior art, the present invention has following beneficial effect:
1) upper mandrel is different from the diameter of lower mandrel bigger diameter end, can avoid by mistake that two mandrel positions are anti-loaded in the assembling process.
2) upper mandrel and lower mandrel be crucial and parts independently, but machining or inject and process, and machinability is good.
3) to have a channel cross-section large with going out space that sap cavity is communicated with, is difficult for being stopped up by the cap test tube chip, is beneficial to chip removal; And the space circumferentially is evenly distributed the negative pressure of cleaning chambers, guarantees that sampling needle is whole circumferential without cleaning the dead angle.
4) respectively upper mandrel and lower mandrel are carried out axial location by upper positioning table terrace and lower positioning table terrace, be convenient to realize assembling and location.
5) conical cavity is set near admission chamber, the trunnion effect by reducing produces increases the cleaning chambers negative pressure, promotes cleaning performance.
6) two path inlets and the setting that liquidates, and axis is vertical with the axis of admission chamber, increases feed liquor place's pressure drop, thus increase the negative pressure at conical cavity place, avoid the leakage risk.
Description of drawings
Fig. 1 is the front section view of the embodiment of the invention;
Fig. 2 is the side sectional view of the embodiment of the invention.
The specific embodiment
As shown in Figure 1 and Figure 2, this cleaning device of implementing compatible chip removal type sampling needle comprises: the center be through hole main body 1, be arranged on main body 1 through hole upper end upper mandrel 2, be arranged on the lower mandrel 3 of main body 1 through hole lower end, all be arranged on feed tube 4 and drain pipe 5 on the main body 1, be arranged on the admission chamber 41 in the feed tube 4, the sap cavity 51 that goes out that is arranged in the drain pipe 5 is communicated with the through hole of main body 1 respectively.
Wherein, main body 1 center is through hole, be distributed with positioning step 11 and lower positioning table terrace 12 in upper end and the lower end of through hole, and upper positioning step 11 is inconsistent with the maximum outside diameter of lower positioning table terrace 12.Establish annular slot 13 on the main body 1 to make things convenient for this cleaning device to be fixed in the cellanalyzer.Upper mandrel 2 upper ends be provided with main body 1 in the multidiameter of upper positioning table terrace 11 couplings, the center is that through hole is to form limit chamber 6.Lower mandrel 3 lower ends be provided with main body 1 in the multidiameter of lower positioning table terrace 12 couplings, the center is provided with three sector holes: epimere is that cleaning chambers 31, stage casing are that conical cavity 32, hypomere are buffering container cavity 33.Be oppositely arranged two two path inlets 321 and 322 that are positioned at the same level face at conical cavity 32.The axis of feed tube 4 and two path inlets 321 are vertical with 322 axis, and are in sustained height.
And, upper mandrel 2 carries out axial location by upper positioning table terrace 11, lower mandrel 3 carries out axial location by lower positioning table terrace 12, and upper mandrel 2, lower mandrel 3 are linked and packed behind the through hole of main body 1, forms between upper mandrel 2, lower mandrel 3 and the space 7 that goes out sap cavity 16 and be communicated with.
Flushing liquor enters from admission chamber 41, and liquidate through two path inlets 321 and 322 and to enter in the conical cavity 32, the residual blood sample and the chip that enter on 31 pairs of sampling needles of cleaning chambers clean again, finally by crossing space 7 and going out that sap cavity 51 is discharged cleaning devices and the cleaning task of finishing sampling needle.
The useful technique effect that this enforcement can reach:
1) upper mandrel 2 is different from the diameter of lower mandrel 3 bigger diameter ends, can avoid by mistake that two mandrel positions are anti-loaded in the assembling process.
2) upper mandrel 2 and lower mandrel 3 be crucial and parts independently, but machining or injection process, machinability is good.
3) to have a channel cross-section large with going out space 7 that sap cavity 51 is communicated with, is difficult for being stopped up by the cap test tube chip, is beneficial to chip removal; And space 7 circumferentially is evenly distributed the negative pressure of cleaning chambers 31, guarantees that sampling needle is whole circumferential without cleaning the dead angle.
4) respectively upper mandrel 2 and lower mandrel 3 are carried out axial location by upper positioning table terrace 11 with lower positioning table terrace 12, be convenient to realize assembling and location.
5) conical cavity 32 is set near admission chamber 41, by the trunnion effect that reducing produces, increases and clean 31 chamber negative pressure, promote cleaning performance.
6) two path inlets 321 and 322 setting that liquidates, and axis is vertical with the axis of admission chamber 41, increases feed liquor place's pressure drop, thus increase the negative pressure at conical cavity 32 places, avoid the leakage risk.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the sampling needle cleaning device of a compatible chip removal type is characterized in that, described cleaning device comprises: the center is the main body of through hole; Be separately positioned on the through hole upper end of main body, upper mandrel and the lower mandrel of lower end, the center of upper mandrel is formed for sampling needle is carried out circumferentially spacing limit chamber; All be arranged on feed tube and drain pipe on the main body, going out between the upper mandrel of sap cavity connection and the lower mandrel in the drain pipe forms the space that is beneficial to chip removal, and the admission chamber in the feed tube is communicated with the center of lower mandrel.
2. the sampling needle cleaning device of described compatible chip removal type according to claim 1 is characterized in that, through hole upper end and the lower end of main body are distributed with the inconsistent upper positioning step of maximum outside diameter and lower positioning table terrace.
3. the sampling needle cleaning device of described compatible chip removal type according to claim 2 is characterized in that, the upper end of upper mandrel is provided with the multidiameter with upper positioning table terrace coupling, and the lower end of lower mandrel is provided with the multidiameter with lower positioning table terrace coupling.
4. the sampling needle cleaning device of described compatible chip removal type according to claim 3 is characterized in that upper mandrel carries out axial location by upper positioning table terrace, and lower mandrel carries out axial location by lower positioning table terrace.
5. the sampling needle cleaning device of described compatible chip removal type according to claim 1 is characterized in that, is provided for cleaning device on the main body and is fixed on annular slot in the cellanalyzer.
6. the sampling needle cleaning device of described compatible chip removal type according to claim 1 is characterized in that, it is buffering container cavity, conical cavity and cleaning chambers that the centre bore of lower mandrel sets gradually from top to bottom, and admission chamber is communicated with conical cavity.
7. the sampling needle cleaning device of described compatible chip removal type according to claim 6 is characterized in that, conical cavity has the more small-bore one terminal cleaning chambers that is communicated with, and the trunnion effect that is produced by reducing by conical cavity increases the negative pressure of cleaning chambers.
8. the sampling needle cleaning device of described compatible chip removal type according to claim 6 is characterized in that, is oppositely arranged two two path inlets that are positioned at the same level face at conical cavity.
9. the sampling needle cleaning device of described compatible chip removal type according to claim 7 is characterized in that, the axis of the axis of admission chamber and two path inlets is vertical and be in sustained height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103164207A CN103056124A (en) | 2011-10-18 | 2011-10-18 | Compatible chip-removal type sampling needle cleaning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103164207A CN103056124A (en) | 2011-10-18 | 2011-10-18 | Compatible chip-removal type sampling needle cleaning device |
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| CN103056124A true CN103056124A (en) | 2013-04-24 |
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| CN2011103164207A Pending CN103056124A (en) | 2011-10-18 | 2011-10-18 | Compatible chip-removal type sampling needle cleaning device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690044A (en) * | 2015-03-09 | 2015-06-10 | 北京普立泰科仪器有限公司 | Active type sampling probe washing device capable of preventing cross infection and cleaning method |
| CN105327907A (en) * | 2015-12-14 | 2016-02-17 | 重庆南方数控设备有限责任公司 | Vortex type needle washing device for cleaning sampling needles |
| CN105327891A (en) * | 2015-12-14 | 2016-02-17 | 重庆南方数控设备有限责任公司 | Needle washing device |
| CN105436134A (en) * | 2015-12-14 | 2016-03-30 | 重庆南方数控设备有限责任公司 | Needle washing device for blood rheometer |
| CN105537180A (en) * | 2015-12-14 | 2016-05-04 | 重庆南方数控设备有限责任公司 | Vortex type sampling needle washing device |
Citations (5)
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| EP0472213A2 (en) * | 1990-08-24 | 1992-02-26 | Olympus Optical Co., Ltd. | Probe washing vessel |
| US5318359A (en) * | 1988-11-17 | 1994-06-07 | Kabushiki Kaisha Nittec | Automatic medical sampling device |
| EP0602802A1 (en) * | 1992-12-17 | 1994-06-22 | Beckman Instruments, Inc. | Fluid probe washing apparatus and method |
| WO1997001750A1 (en) * | 1995-06-29 | 1997-01-16 | Coulter International Corp. | Apparatus for cleaning a fluid sample probe |
| CN102072962A (en) * | 2011-01-31 | 2011-05-25 | 深圳市蓝韵实业有限公司 | Device for washing sampling needle of hematology analyzer |
-
2011
- 2011-10-18 CN CN2011103164207A patent/CN103056124A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5318359A (en) * | 1988-11-17 | 1994-06-07 | Kabushiki Kaisha Nittec | Automatic medical sampling device |
| EP0472213A2 (en) * | 1990-08-24 | 1992-02-26 | Olympus Optical Co., Ltd. | Probe washing vessel |
| EP0602802A1 (en) * | 1992-12-17 | 1994-06-22 | Beckman Instruments, Inc. | Fluid probe washing apparatus and method |
| WO1997001750A1 (en) * | 1995-06-29 | 1997-01-16 | Coulter International Corp. | Apparatus for cleaning a fluid sample probe |
| CN102072962A (en) * | 2011-01-31 | 2011-05-25 | 深圳市蓝韵实业有限公司 | Device for washing sampling needle of hematology analyzer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690044A (en) * | 2015-03-09 | 2015-06-10 | 北京普立泰科仪器有限公司 | Active type sampling probe washing device capable of preventing cross infection and cleaning method |
| CN105327907A (en) * | 2015-12-14 | 2016-02-17 | 重庆南方数控设备有限责任公司 | Vortex type needle washing device for cleaning sampling needles |
| CN105327891A (en) * | 2015-12-14 | 2016-02-17 | 重庆南方数控设备有限责任公司 | Needle washing device |
| CN105436134A (en) * | 2015-12-14 | 2016-03-30 | 重庆南方数控设备有限责任公司 | Needle washing device for blood rheometer |
| CN105537180A (en) * | 2015-12-14 | 2016-05-04 | 重庆南方数控设备有限责任公司 | Vortex type sampling needle washing device |
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