CN2896263Y - Wiper for washing external wall of sampling needle - Google Patents
Wiper for washing external wall of sampling needle Download PDFInfo
- Publication number
- CN2896263Y CN2896263Y CN 200620054314 CN200620054314U CN2896263Y CN 2896263 Y CN2896263 Y CN 2896263Y CN 200620054314 CN200620054314 CN 200620054314 CN 200620054314 U CN200620054314 U CN 200620054314U CN 2896263 Y CN2896263 Y CN 2896263Y
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- swab
- sampling needle
- hole
- cavity
- wall
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Abstract
The utility model relates to a swab used to clean the outer wall of the sampling needle, which comprise the body of the swab, the liquid inlet and the liquid outlet, wherein an aperture for the sampling needle axially passes through the mid of the body of the swab; the liquid inlet and the liquid outlet are communicated with the aperture; the aperture comprises a primary, secondary and tertiary cavities that distribute along the axial direction; the primary, secondary and tertiary cavities are communicated with each other and the aperture dwindles in sequence; the liquid inlet is communicated with the primary cavity and the liquid outlet is communicated with the secondary cavity. Through arrangement of the primary, secondary and tertiary cavities, the liquid flow scope is larger and the flow is smoother and then a small-powered liquid pump can ensure that the detergent lotion is smoothly absorbed to the upper liquid outlet after entering the aperture from the liquid inlet at the bottom of the swab, so that the detergent lotion can conduct adequate cleaning to the outer wall of the sampling needle within the swab and can well prevent the blood sample from polluting the swab.
Description
[technical field]
The utility model is the swab that is applied to the blood cell analysis field about a kind of.
[background technology]
In the existing blood cell analyzer, all adopt swab to finish the cleaning of sampling needle outer wall.This principle wherein also is close to identical, be that swab itself comprises inlet opening and fluid hole, the cleaning fluid of pin outer wall enters swab inside from inlet opening, has negative pressure in the fluid hole, cleaning liquid is siphoned away, and liquid has been finished the cleaning to the sampling needle outer wall in inner this process of circulation of swab.
Existing swab structure mainly adopts inlet opening following, fluid hole is last, and the liquid inlet and outlet hole is 5,592 towards opposite configuration as notification number, 959 United States Patent (USP) discloses, see also Fig. 1, this swab comprises the through hole that allows sampling needle to insert, a cleaning fluid inlet opening 18 that leads to through hole, the fluid hole 19 that acceptance is flowed out from through hole, other has the liquid that links to each other with fluid hole 19 to suck device to siphon away waste liquid.Above-mentioned through hole comprises a constant diameter and less relatively part 15a, the part 15d that diameter is relatively large.Pin inserts from 15a, and 15a is the inlet of the pin of an opening, and is very little to the cleanup action of pin outer wall; 15d is in the below of 15a, is one the pin outer wall played the open outlet of cleanup action, and why it be greatly because its aperture is bigger than 15a than the cleanup action of 15a.Directly link to each other with 15d at pin outer wall inlet 18, when liquid outlet 19 directly is communicated with 15a, these hour hands bottom 19 and 15a above, the face of the outer wall of sampling needle 3 is cleaned, waste liquid is discharged from the sample lines of pin, flows away from 19.
But there is following shortcoming in the swab of this kind structure: liquid inlet and outlet bore portion complexity.Particularly the fluid hole aperture of swab is bigger, reaches the imbibition purpose for cooperating it, needs the high-power liquid pump of configuration.The through hole of the swab of sampling needle insertion simultaneously has been divided into two sections, the upper semisection aperture is thinner, between the two spacing was very little after sampling needle inserted, this moment, cleaning fluid can enter this section space after the swab inlet opening pours, if guarantee that liquid does not spill from swab through hole lower end, then will there be the high negative requirement at swab fluid hole place, and this also requires to adopt high-power liquid pump to extract suction; Secondly, this patent swab liquid inlet/outlet certainly will increase the swab occupation space towards on the contrary, upwards brings difficulty walking tube side also can for simultaneously the swab liquid inlet/outlet pipeline that links to each other.
[utility model content]
The swab structure that the purpose of this utility model is to provide a kind of can clean, can well avoid again blood sample that swab is polluted to the sampling needle outer wall fully.
Secondary objective of the present utility model is to provide a kind of can reducing to take up room and be convenient to the swab structure that the liquid inlet and outlet pipeline is walked pipe.
The purpose of this utility model is achieved in that this swab that is used to clean the sampling needle outer wall comprises swab body, inlet opening and fluid hole, this swab body middle part axially is penetrated with the through hole of coming in and going out for sampling needle, this liquid inlet and outlet hole all is communicated with this through hole, this through hole comprises along first, second and third cavity that should axially distribute successively, this first, second and third cavity is connected and its aperture reduces successively, this inlet opening is communicated with this first cavity, and this fluid hole is communicated with this second cavity.
Described first, second, third cavity coaxial cable.
Described inlet opening and fluid hole are all towards the same side of this swab body.
Described fluid hole and inlet opening are in the both sides of a longitudinal surface respectively, this axis be on this longitudinal surface and this longitudinal surface and sampling needle to go out Inbound parallel.
The hole wall in described liquid inlet and outlet hole and the maximum horizontal range between this axis are greater than or less than the radius of the first or second corresponding cavity.
The axis in described liquid inlet and outlet hole is vertical with the axis antarafacial of corresponding first or second cavity.
Described swab body comprises independent first body and second body that is provided with, and this second body embeds this first body interior, and this first cavity is located at this first body, and this second, third cavity all is located at this second body.
The position in the corresponding liquid inlet and outlet of described second body hole is respectively equipped with first, second ring groove, this first ring groove is provided with through hole in the position that becomes 180 degree with inlet opening and is communicated with first cavity, and this second ring groove is provided with through hole and is communicated with second cavity in the position over against fluid hole.
Compared with prior art, the utlity model has following advantage: 1) pass through the setting of first, second and third cavity, make the space of liquid flow bigger and mobile more smooth and easy, thereby can guarantee that with the miniwatt liquid pump cleaning fluid is entered the fluid hole that is drawn onto top behind the through hole smoothly by swab bottom inlet opening, thereby can guarantee that cleaning fluid cleans the sampling needle outer wall fully in swab inside, and can well avoid the pollution of blood sample swab; 2) since liquid inlet and outlet towards swab body the same side, so reduced the area occupied of whole swab structure, thereby also be convenient to the pipe of walking of liquid inlet and outlet pipeline.
[description of drawings]
Fig. 1 is the sectional view of prior art swab.
Fig. 2 is the front view that the utility model is used to clean the swab of sampling needle outer wall.
Fig. 3 is the vertical view that the utility model is used to clean the swab of sampling needle outer wall.
Fig. 4 is the sectional view that the utility model is used to clean the swab of sampling needle outer wall.
Fig. 5 is the sectional view of expression inlet opening and swab main body structure and relative position relation.
Fig. 6 is the sectional view of expression fluid hole and swab main body structure and relative position relation.
Fig. 7 is the front view of the utility model second embodiment.
Fig. 8 is the sectional view of the utility model second embodiment.
[embodiment]
See also Fig. 3 to Fig. 6, the swab that the utility model is used to clean the sampling needle outer wall comprises swab body, inlet opening and fluid hole, this swab body middle part axially is penetrated with the through hole of coming in and going out for sampling needle, this liquid inlet and outlet hole all is communicated with this through hole, this through hole comprises along first, second and third cavity that should axially distribute successively, this first, second and third cavity is connected and its aperture reduces successively, and this inlet opening is communicated with this first cavity, and this fluid hole is communicated with this second cavity.
The solid of revolution of this swab body 1 for being rotarily formed around himself axis A, its material can be POM or organic glass, and this material can not with the liquid generation chemical reaction of the swab of flowing through, this axis A is on the vertical longitudinal surface, direction of motion when this longitudinal surface is parallel to sampling needle 2 these swabs of discrepancy, promptly this longitudinal surface is determined by the axis of this axis A and sampling needle liquid outlet.The middle position of this swab body 1 is penetrated with a through hole 11 for sampling needle discrepancy up and down along its axis A direction, this through hole 11 comprises first, second, third cavity 12,13,14 that the axis A direction (also being the direction of motion of sampling needle) along this swab body 1 is communicated with from the bottom to top successively, and this first, second, third cavity 12,13,14 coaxial line A.The 3rd cavity 14 is positioned at the top of swab body 1, and its diameter is very little, is used for positioning when sampling needle 2 is come in and gone out this swab guiding; This second cavity 13 is positioned at the middle part of swab body 1, and its diameter is big slightly, is used to clean the cleaning fluid of sampling needle outer wall mainly via the upwards circulation of this section; This first cavity 12 is positioned at the bottom of this swab body 1, its diameter maximum, thus the blood sample of sampling needle 2 outer walls is not easy to be infected with in the swab bottom.Because this through hole is divided into three sections, and the diameter of second cavity 13 in the middle part of being positioned at is bigger slightly than the diameter of the 3rd cavity 14 that is positioned at the top, then the cleaning fluid space of flowing in second cavity 13 is bigger, reason inlet opening 3 flow rate of liquid are not too fast, and swab inside does not have enough spaces to flow and causes liquid to spill from the swab bottom; In addition, setting by this three step through-holes of swab 11 structures, make liquid flow smooth and easy, can guarantee to be drawn onto the fluid hole 4 that is positioned at swab body middle part smoothly after the inlet opening 3 of cleaning fluid bottom swab enters through hole 11 with the miniwatt liquid pump, so both can guarantee that cleaning fluid fully cleaned the sampling needle outer wall in swab inside, and also can well avoid the pollution of blood sample swab.
Inlet opening 3 links to each other with sampling needle cleaning fluid (as dilution) by sebific duct 5, thus the passage that provides a cleaning fluid to flow into.Fluid hole 4 links to each other with liquid pump by sebific duct 6, thus the passage that provides a cleaning fluid to flow out.This sebific duct 5,6 all is to tighten together by the liquid inlet and outlet hole 3,4 that closely cooperates respectively with swab, guarantees the leakproofness of whole swab.
Inlet opening 3 communicates with first cavity 12, and its axis B is vertical with the axis A antarafacial of first cavity 12, and promptly this two axial lines 31,10 does not align crossing.This inlet opening 3 is positioned at a side of axis A place longitudinal surface fully, and this inlet opening 3 is not tangent with first cavity 12, to prevent that cleaning fluid from only cleaning the outer wall of sampling needle one side, in the present embodiment, the maximum horizontal range between the hole wall 31 of this axis A and inlet opening 3 is greater than the radius of first cavity 12.When beginning to clean outer wall, cleaning fluid enters first cavity 12 from swab inlet opening 3, before entering second cavity 13, can in first cavity 12, form circulation, if have sampling needle 2 in first cavity 12 this moment, then cleaning fluid is most can flow through along sampling needle 2 outer walls in that side of inlet opening 3 off-axis, stream along opposite side but also have small amount of liquid, so just can guarantee to eliminate the cleaning dead angle of sampling needle outer wall.
Arrange in the above described manner swab inlet opening 3 and the position of fluid hole 4 in the swab body, can make the same side, liquid inlet and outlet hole towards swab body 1, the trend of the pipeline that connects with this liquid inlet and outlet hole is also identical, the position of this section pipeline in machine of conveniently arranging, swab can not take too much space at machine intimate yet.When whole sampling component carries out yaw motion, swab be difficult for machine in miscellaneous part interfere, pipeline also is difficult for producing distortion.In the present embodiment, the parallel axes in liquid inlet and outlet hole 3,4 and towards identical.
Swab inlet opening 3 is arranged in swab body 1 bottom, and fluid hole 4 is positioned at the middle part, and cleaning fluid goes out on the subordinate advances in swab, can better clean the sampling needle outer wall and more difficultly spill liquid from the bottom.Sampling needle collects behind the sample that swab begins to clean the sampling needle outer wall in the uphill process, at this moment, the cleaning fluid cognition that enters from inlet opening 3 impacts on the sampling needle outer wall, and sampling needle 2 has speed upwards simultaneously, the liquid of close sampling needle outer wall also can be subjected to a friction force that makes progress and move upward with sampling needle 2, fluid hole 4 places do not need too big negative pressure the liquid in the swab all can be taken away by the fluid hole 4 at top and can not spilt from the swab bottom like this, and the miniwatt liquid pump can guarantee such pressure requirement.
This swab can be fixed on a certain position in instrument also can be movable, a more satisfactory method of operating is that swab is fixed on the sampling component, sampling needle passes from the through hole in the middle of the swab, sampling needle can move so that obtain blood sample from sample tube by free lifting, there is a sampling channel sampling needle inside, outlet near the sampling needle side near the needle point place, swab, sampling needle are all done yaw motion with sampling component.
Sampling needle also can be horizontally rotated in instrument, can draw and divide row micro liquid, as 13uL.In this case, therefore the blood sample that the sampling needle outer wall carries may, clean with dry just very necessary the sampling needle outer wall with swab far more than the sample size that requires to gather.
Swab as previously mentioned, sampling needle 2 passes the through hole 11 of swab in use, sampling needle and swab can begin logical cleaning fluid through inlet opening 3 and fluid hole 4 before moving, and liquid be led in end after motion finishes along the axial generation relative motion of sampling needle after the sampling.Can will clean up according to cleaning principle noted earlier by the sampling needle outer wall in inlet opening 3 and fluid hole 4 intervals.
See also Fig. 7 and Fig. 8, it is second embodiment of the present utility model.Swab body 1 comprises independent first body 11 and second body 12 that is provided with, these first body, 11 middle positions axially are penetrated with through hole, this through hole is divided into upper and lower two sections cavitys, epimere cavity 112 diameters are very little, its effect only is to be the sampling needle guiding that hypomere cavity 113 will cooperate with second body 12.Second body 12 is the cylinder contour structure, and it embeds in the hypomere cavity 113 of first body 11.The middle position of this second body 12 axially is penetrated with through hole, and this through hole also is divided into upper and lower two sections cavitys 122,123, and this upper and lower section cavity 122,123 is all coaxial with the epimere cavity 112 of first body 11.The diameter of the epimere cavity 122 of second body 12 is big slightly than the epimere cavity 112 of first main body 1, and cleaning liquid mainly cleans the sampling needle outer wall in this section; The hypomere cavity 123 diameter maximums of second main body can well prevent that the blood sample of sampling needle outer wall from adhering on the swab.Make ring groove 8,9 respectively with swab liquid inlet and outlet hole 3,4 same horizontal levels on the outer wall of second body 12, ring groove 9 is communicated with cavity 123 becoming 180 ° of positions to make through hole 13 with inlet opening 3 '; Ring groove 8 is communicated with cavity 122 doing through hole 14 over against fluid hole 4 ' position.This moment, inlet opening and fluid hole can be on same vertical planes, and cleaning liquid enters swab inside around 180 ° the sampling needle outer wall is washed behind inlet opening, and this design also can guarantee the cleaning performance of sampling needle outer wall.In the present embodiment, cavity 113,122,123 is equivalent to first, second and third cavity respectively; Liquid inlet and outlet hole 3 ', 4 ' axis all with the axis coplane of swab body 1 and vertical.
Claims (8)
1. swab that is used to clean the sampling needle outer wall, comprise swab body, inlet opening and fluid hole, this swab body middle part axially is penetrated with the through hole of coming in and going out for sampling needle, this liquid inlet and outlet hole all is communicated with this through hole, it is characterized in that: this through hole comprises along first, second and third cavity that should axially distribute successively, this first, second and third cavity is connected and its aperture reduces successively, and this inlet opening is communicated with this first cavity, and this fluid hole is communicated with this second cavity.
2. the swab that is used to clean the sampling needle outer wall as claimed in claim 1 is characterized in that: described first, second, third cavity coaxial cable.
3. the swab that is used to clean the sampling needle outer wall as claimed in claim 2 is characterized in that: described inlet opening and fluid hole are all towards the same side of this swab body.
4. the swab that is used to clean the sampling needle outer wall as claimed in claim 3 is characterized in that: described fluid hole and inlet opening are in the both sides of a longitudinal surface respectively, this axis be on this longitudinal surface and this longitudinal surface and sampling needle to go out Inbound parallel.
5. the swab that is used to clean the sampling needle outer wall as claimed in claim 4 is characterized in that: the hole wall in described liquid inlet and outlet hole and the maximum horizontal range between this axis are greater than or less than the radius of the first or second corresponding cavity.
6. the swab that is used to clean the sampling needle outer wall as claimed in claim 5 is characterized in that: the axis in described liquid inlet and outlet hole is vertical with the axis antarafacial of corresponding first or second cavity.
7. the swab that is used to clean the sampling needle outer wall as claimed in claim 2, it is characterized in that: described swab body comprises independent first body and second body that is provided with, this second body embeds this first body interior, and this first cavity is located at this first body, and this second, third cavity all is located at this second body.
8. the swab that is used to clean the sampling needle outer wall as claimed in claim 7, it is characterized in that: the position in the corresponding liquid inlet and outlet of described second body hole is respectively equipped with first, second ring groove, this first ring groove is provided with through hole in the position that becomes 180 degree with inlet opening and is communicated with first cavity, and this second ring groove is provided with through hole and is communicated with second cavity in the position over against fluid hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620054314 CN2896263Y (en) | 2006-01-20 | 2006-01-20 | Wiper for washing external wall of sampling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620054314 CN2896263Y (en) | 2006-01-20 | 2006-01-20 | Wiper for washing external wall of sampling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2896263Y true CN2896263Y (en) | 2007-05-02 |
Family
ID=38065838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620054314 Expired - Lifetime CN2896263Y (en) | 2006-01-20 | 2006-01-20 | Wiper for washing external wall of sampling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2896263Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103439522A (en) * | 2013-09-04 | 2013-12-11 | 深圳市锦瑞电子有限公司 | Specific protein analyzer |
| 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 |
| CN106483316A (en) * | 2016-08-31 | 2017-03-08 | 武汉明德生物科技股份有限公司 | Full-automatic immune quantitative analyser fluid path control system and its purging method |
| CN106944424A (en) * | 2017-05-03 | 2017-07-14 | 苏州信诺泰克医疗科技有限公司 | Wiper mechanism and detection device |
| CN107328950A (en) * | 2017-08-22 | 2017-11-07 | 重庆博奥新景医学科技有限公司 | It is a kind of to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis |
| CN107971302A (en) * | 2016-10-25 | 2018-05-01 | 上海安杰环保科技股份有限公司 | A kind of sample introduction needle washer |
| CN108246695A (en) * | 2018-01-16 | 2018-07-06 | 深圳迎凯生物科技有限公司 | Sampling needle cleaning device |
| CN110118671A (en) * | 2018-02-06 | 2019-08-13 | 深圳市帝迈生物技术有限公司 | A kind of sampler |
| CN110133244A (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 | A kind of chemical illumination immunity analysis instrument, its aspirating needle mechanism and cleaning method |
| CN114563588A (en) * | 2022-04-27 | 2022-05-31 | 深圳市帝迈生物技术有限公司 | Sample analysis apparatus and control method thereof |
-
2006
- 2006-01-20 CN CN 200620054314 patent/CN2896263Y/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072962B (en) * | 2011-01-31 | 2012-12-19 | 深圳市蓝韵实业有限公司 | Device for washing sampling needle of hematology analyzer |
| 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 |
| CN103439522A (en) * | 2013-09-04 | 2013-12-11 | 深圳市锦瑞电子有限公司 | Specific protein analyzer |
| 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 |
| CN106483316A (en) * | 2016-08-31 | 2017-03-08 | 武汉明德生物科技股份有限公司 | Full-automatic immune quantitative analyser fluid path control system and its purging method |
| CN106483316B (en) * | 2016-08-31 | 2019-04-02 | 武汉明德生物科技股份有限公司 | Full-automatic immune quantitative analyzer fluid path control system and its purging method |
| CN107971302A (en) * | 2016-10-25 | 2018-05-01 | 上海安杰环保科技股份有限公司 | A kind of sample introduction needle washer |
| CN106944424A (en) * | 2017-05-03 | 2017-07-14 | 苏州信诺泰克医疗科技有限公司 | Wiper mechanism and detection device |
| CN107328950B (en) * | 2017-08-22 | 2023-06-27 | 重庆博奥新景医学科技有限公司 | Automatic sample injection system for lifting and cleaning sample tube in cell analysis |
| CN107328950A (en) * | 2017-08-22 | 2017-11-07 | 重庆博奥新景医学科技有限公司 | It is a kind of to be used for the automatic sample handling system of sample cell lifting and cleaning in cell analysis |
| CN108246695A (en) * | 2018-01-16 | 2018-07-06 | 深圳迎凯生物科技有限公司 | Sampling needle cleaning device |
| CN108246695B (en) * | 2018-01-16 | 2024-04-30 | 深圳迎凯生物科技有限公司 | Sampling needle cleaning device |
| CN110118671A (en) * | 2018-02-06 | 2019-08-13 | 深圳市帝迈生物技术有限公司 | A kind of sampler |
| CN110118671B (en) * | 2018-02-06 | 2023-10-13 | 深圳市帝迈生物技术有限公司 | Sampling device |
| CN110133244A (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 | A kind of chemical illumination immunity analysis instrument, its aspirating needle mechanism and cleaning method |
| CN110133244B (en) * | 2018-02-08 | 2024-04-23 | 成都深迈瑞医疗电子技术研究院有限公司 | Chemiluminescent immunoassay analyzer, liquid suction needle mechanism and cleaning method thereof |
| CN114563588A (en) * | 2022-04-27 | 2022-05-31 | 深圳市帝迈生物技术有限公司 | Sample analysis apparatus and control method thereof |
| CN114563588B (en) * | 2022-04-27 | 2022-09-27 | 深圳市帝迈生物技术有限公司 | Sample analysis apparatus and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070502 |
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| EXPY | Termination of patent right or utility model |