CN216460602U - Sample adding needle cleaning station and sample adding needle cleaning system for biochemical immunity instrument - Google Patents
Sample adding needle cleaning station and sample adding needle cleaning system for biochemical immunity instrument Download PDFInfo
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- CN216460602U CN216460602U CN202120758058.8U CN202120758058U CN216460602U CN 216460602 U CN216460602 U CN 216460602U CN 202120758058 U CN202120758058 U CN 202120758058U CN 216460602 U CN216460602 U CN 216460602U
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Abstract
The utility model discloses a sampling needle cleaning station and a sampling needle cleaning system for a biochemical immunity instrument, wherein the sampling needle cleaning system comprises a sampling needle cleaning station, the sampling needle cleaning station comprises a cleaning container, a cleaning unit, a liquid drainage unit, an overflow unit and a liquid hanging prevention unit, the cleaning unit, the liquid drainage unit, the overflow unit and the liquid hanging prevention unit are arranged on the cleaning container, and the upper part of the overflow unit is communicated with the cleaning unit and drains cleaning liquid overflowing from the cleaning unit; the liquid hanging prevention unit is communicated with the upper part of the cleaning unit. According to the utility model, the overflow unit is arranged on the cleaning container, and the cleaning waste liquid is discharged by the overflow unit and the liquid discharge unit together, so that the waste discharge capacity is improved; the cleaning container upper portion has prevents the hanging liquid unit, prevents that the hanging liquid unit is located the top in feed liquor hole, and the negative pressure that the drawing liquid pump on the second fluid-discharge tube way provided will remain the washing liquid on the application of sample needle outer wall and take away, effectively avoids the washing liquid wall built-up, guarantees the cleaning performance of application of sample needle, has reduced cross contamination's probability between the sample, has improved the reliability and the repeatability of testing result.
Description
Technical Field
The utility model relates to a biochemical immunity instrument, in particular to a sampling needle cleaning station for the biochemical immunity instrument, and further relates to a sampling needle cleaning system with the sampling needle cleaning station.
Background
The cleaning effect of the cleaning of the sampling needle directly influences the accuracy, reliability and repeatability of the sample, so the cleaning operation of the sampling needle is an essential important part in the detection operation of an automatic biochemical immune instrument (such as a full-automatic chemiluminescence immune analyzer). The cleaning station equipped on the existing biochemical immunity instrument is a cleaning container with a cleaning cavity, the upper part of the cleaning container is provided with a liquid inlet hole communicated with the cleaning cavity, the lower part of the cleaning container is provided with a waste liquid hole communicated with the cleaning cavity, the waste liquid hole is communicated with a waste liquid pipeline of the biochemical immunity instrument, and a liquid pump on the waste liquid pipeline is used for pumping out cleaning waste liquid in the cleaning cavity. However, liquid often remains on the outer wall and the needle tip of the cleaned sampling needle, that is, the sampling needle is not cleaned thoroughly, so that not only is the risk of cross contamination of the sample present, but also the risk of diluting the sample with the residual cleaning liquid is present, and the reliability and the repeatability of the detection result are affected. Therefore, how to design a cleaning station capable of hanging liquid on the outer wall of the sample adding needle is a technical problem which needs to be overcome by biochemical immunity instrument manufacturers.
Disclosure of Invention
The utility model aims to provide a sample adding needle cleaning station for a biochemical immunity instrument and a sample adding needle cleaning system comprising the sample adding needle cleaning station, which can remove liquid drops remained on the outer wall of a sample adding needle by utilizing a negative pressure and liquid hanging prevention unit, avoid liquid hanging on the outer wall of the sample adding needle and effectively ensure the cleaning effect.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model relates to a sample adding needle cleaning station for a biochemical immunity instrument, which comprises a cleaning container, a cleaning unit and a liquid discharging unit, wherein the cleaning unit and the liquid discharging unit are arranged on the cleaning container; the cleaning container is characterized by further comprising an overflow unit and a liquid hanging prevention unit, wherein the overflow unit and the liquid hanging prevention unit are arranged on the cleaning container, the upper portion of the overflow unit is communicated with the cleaning unit to discharge cleaning liquid overflowing from the cleaning unit, and the liquid hanging prevention unit is communicated with the upper portion of the cleaning unit.
In a preferred embodiment of the present invention, the cleaning unit comprises a first overflow tank arranged at the upper part of the cleaning container from top to bottom and a cleaning cavity arranged along the length direction of the cleaning container, and the upper part of the cleaning cavity extends upwards into the first overflow tank.
In a preferred embodiment of the present invention, the washing unit further includes at least two liquid inlet holes horizontally opened at an upper portion of the washing container, and each of the liquid inlet holes is communicated with an upper portion of the washing chamber through a first connecting passage obliquely provided.
In a preferred embodiment of the present invention, the liquid hanging prevention unit includes at least one liquid extraction hole opened at an upper portion of the cleaning vessel, the liquid extraction hole is communicated with an upper portion of the cleaning chamber through a second connection channel horizontally disposed, and a height of the liquid extraction hole is higher than a height of the liquid inlet hole and lower than a bottom wall of the first overflow tank. During actual processing, the liquid pumping hole is a threaded hole so as to facilitate installation of a liquid pumping pipeline.
In a preferred embodiment of the present invention, the drain unit includes a waste liquid hole horizontally opened at a lower portion of the cleaning container and a third connection passage having one end communicating with the waste liquid hole and the other end communicating with the bottom of the cleaning chamber. And during cleaning, the waste liquid is discharged through the third connecting channel and the waste liquid hole.
In a preferred embodiment of the present invention, the cleaning cavity includes an upper expanding section, a circular truncated cone connecting section gradually converging from top to bottom, and a lower cleaning section vertically extending downward from the bottom of the circular truncated cone connecting section, and an upper portion of the upper expanding section extends into the first overflow chute. More preferably, the upper opening edge of the upper expanding section is provided with a notch in an arc structure, so that the cleaning liquid in the cleaning cavity flows into the first overflow groove from the notch.
In a preferred embodiment of the present invention, the outlet of the first connecting channel is located on the circular truncated cone connecting section, and the outlet of the second connecting channel is located on the upper expanding section, so as to ensure the cleaning effect of the sample adding needle.
In a preferred embodiment of the present invention, the overflow unit includes a second overflow trough provided on a trough wall of the first overflow trough, and an overflow cavity provided along a length direction of the cleaning vessel, wherein a top of the overflow cavity is communicated with the second overflow trough, and a bottom of the overflow cavity is communicated with an overflow hole provided at a bottom of the cleaning vessel.
In a preferred embodiment of the present invention, the cleaning container is formed by connecting an upper cylindrical section and a lower cylindrical section, the upper cylindrical section has a diameter larger than that of the lower cylindrical section, and the outer wall of the lower cylindrical section has a pair of mounting planes.
The utility model also provides a sample adding needle cleaning system, which comprises the sample adding needle cleaning station, a liquid injection pipeline communicated with the cleaning unit, a first liquid discharge pipeline communicated with the overflow unit, a second liquid discharge pipeline communicated with the liquid hanging prevention unit, and a third liquid discharge pipeline communicated with the liquid discharge unit, wherein outlets of the first liquid discharge pipeline, the second liquid discharge pipeline and the third liquid discharge pipeline are communicated with a waste liquid container, and an inlet of the liquid injection pipeline is communicated with a cleaning liquid containing container.
The utility model has the advantages that the overflow unit is arranged on the cleaning container, and the cleaning waste liquid is discharged by the overflow unit and the liquid discharge unit together, so that the waste discharge capacity is improved; meanwhile, the upper part of the cleaning container is provided with the liquid hanging prevention unit which is positioned above the liquid inlet hole, and the negative pressure provided by the liquid pump on the second liquid discharge pipeline can pump away the cleaning liquid remained on the outer wall of the sample adding needle, so that the wall hanging of the cleaning liquid is effectively avoided, the cleaning effect of the sample adding needle is ensured, the probability of cross contamination between samples is reduced, and the reliability and the repeatability of a detection result are improved.
Drawings
FIG. 1 is a schematic structural diagram of a cleaning station for a loading needle according to the present invention.
Fig. 2 is a sectional view taken along line B-B of fig. 1.
Fig. 3 is a sectional view taken along line C-C of fig. 1.
Fig. 4 is a sectional view taken along line a-a of fig. 1.
Fig. 5 is a sectional view taken along line D-D of fig. 4.
FIG. 6 is an isometric view of a loading needle cleaning station according to the present invention.
FIG. 7 is a schematic view of a loading needle cleaning station according to the present invention.
FIG. 8 is a schematic diagram of a cleaning system for a loading needle according to the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.
It should be noted that all the directional indicators (such as up, down, left, right, front, and back … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, if the specific posture is changed, the directional indicator is changed accordingly.
It should also be noted that the description herein as relating to "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
As shown in figure 1, the sample adding needle cleaning station for the biochemical immunity instrument comprises a cleaning container 1, and a cleaning unit, a liquid drainage unit, an overflow unit and an anti-liquid hanging unit which are arranged on the cleaning container 1, wherein the upper part of the overflow unit is communicated with the cleaning unit, and the anti-liquid hanging unit is communicated with the upper part of the cleaning unit. In the cleaning process, the waste cleaning liquid in the cleaning unit is discharged by the liquid discharge unit, and the cleaning liquid overflowing from the cleaning unit overflows into the overflow unit and is discharged through the overflow hole 5.3 of the overflow unit, so that the cleaning effect of the sampling needle is effectively ensured; when the needle is pulled upwards, the liquid hanging prevention unit extracts liquid on the outer wall of the sampling needle, so that the cleaning effect of the sampling needle is ensured;
as shown in fig. 4 and 7, the cleaning unit comprises a first overflow groove 2.1 arranged at the upper part of the cleaning container 1 from top to bottom and a cleaning cavity arranged along the length direction of the cleaning container 1, the cleaning cavity comprises an upper expanding section 2.2, a circular truncated cone connecting section 2.3 gradually contracted from top to bottom and a lower cleaning section 2.4 vertically extending downwards from the bottom of the circular truncated cone connecting section 2.3, the section of the cleaning cavity is large at the top and small at the bottom, and the drainage rate of the cleaning waste liquid is improved; the upper part of the upper expanding section 2.2 extends into the first overflow groove 2.1, so that the cleaning waste liquid overflowing from the cleaning cavity can fall into the first overflow groove 2.1, and the bottom of the lower cleaning section 2.4 is prevented from being communicated with a liquid drainage unit;
as shown in fig. 7, the upper opening edge of the upper expanding section 2.2 is provided with a notch 2.5 in an arc structure, so that the cleaning waste liquid in the cleaning cavity overflows to the first overflow groove 2.1 below through the notch 2.5 and is then discharged through the overflow unit, thereby preventing the cleaning waste liquid from overflowing outwards and improving the liquid discharge capacity of the cleaning container 1;
as shown in fig. 1-2 and fig. 6-7, the cleaning unit further comprises two liquid inlet holes 2.6 horizontally arranged at the upper part of the cleaning container 1, each liquid inlet hole 2.6 is connected with the circular truncated cone connecting section 2.3 through a first connecting channel 2.7 which is obliquely arranged, an outlet at the inner end of the first connecting channel 2.7 is positioned on the side wall of the circular truncated cone connecting section 2.3, the height of the outlet is lower than that of the outer end of the circular truncated cone connecting section, and the included angle between the central line of the first connecting channel and the central line of the cleaning container is 80 degrees, so that the cleaning liquid flows into the cleaning cavity from high to low;
as shown in fig. 4-5, the liquid discharge unit includes a waste liquid hole 3.1 and a third connecting channel 3.2 horizontally formed at the lower portion of the cleaning container 1, one end of the third connecting channel 3.2 is communicated with the waste liquid hole 3.1 and the other end thereof is communicated with the bottom of the lower cleaning section 2.4, and the waste liquid in the cleaning chamber is discharged through the third connecting channel 3.2 and the waste liquid hole 3.1.
As shown in fig. 3, the anti-hanging unit includes a liquid-extracting hole 4.1 horizontally formed in the upper portion of the cleaning container 1, the liquid-extracting hole 4.1 is communicated with the upper expanding section 2.2 of the cleaning cavity through a second connecting channel 4.2 horizontally formed, and the height of the liquid-extracting hole 4.1 is higher than the height of the liquid-feeding hole 2.6 and lower than the bottom wall of the first overflow groove 2.1, so as to ensure that the liquid drop on the sampling needle can be extracted, and the cleaning effect of the sampling needle can be ensured.
During actual processing, the liquid pumping hole 4.1 is a threaded hole so as to be convenient for installing a quick-connection plug.
As shown in fig. 1 and 3, the overflow unit includes a second overflow tank 5.1 provided on a tank wall of the first overflow tank 2.1, and an overflow chamber 5.2 provided along a length direction of the cleaning vessel 1, wherein a top of the overflow chamber 5.2 is communicated with the second overflow tank 5.1 and a bottom thereof is communicated with an overflow hole 5.3 provided at a bottom of the cleaning vessel 1, so that the cleaning solution is discharged through the overflow chamber 5.2 and the overflow hole 5.3.
In another embodiment of the present invention, the present embodiment provides a cleaning system for a sampling needle, as shown in fig. 8, the cleaning system for a sampling needle comprises the above-mentioned sampling needle cleaning station, further comprises a liquid injection pipeline 6.1 communicated with the liquid inlet hole 2.6 (the other end of the liquid injection pipeline 6.1 is communicated with the cleaning liquid container 6.2, and the liquid injection pipeline 6.1 is provided with a liquid injection pump 6.3), a first liquid discharge pipeline 7.1 communicated with the overflow hole 5.3 of the overflow unit (the first liquid discharge pipeline 7.1 is provided with a first liquid suction pump 7.2), a second liquid discharge pipeline 8.1 communicated with the anti-hang-up unit (i.e. communicated with the liquid suction hole 4.1) (the second liquid discharge pipeline 8.1 is provided with a second liquid suction pump 8.2), and a third liquid discharge pipeline 9.1 communicated with the liquid discharge unit (i.e. communicated with the liquid discharge hole 3.1) (the third liquid discharge pipeline 9.1 is provided with a third liquid suction pump 9.2), the first liquid discharge pipeline 7.1 and the third liquid discharge pipeline 9.1 are communicated with the liquid discharge outlet of the liquid discharge container F, first drawing liquid pump 7.2 and third drawing liquid pump 9.2 can discharge the washing waste liquid to waste liquid container F in, second drawing liquid pump 8.2 can provide the negative pressure for drawing liquid hole 4.1, and then takes away the liquid drop on the application of sample needle outer wall, effectively avoids the liquid drop wall built-up.
When the inner wall of the sampling needle is cleaned, the sampling needle is moved and inserted into the cleaning cavity, a liquid path module of the biochemical immunity instrument pumps cleaning liquid to the inner cavity of the sampling needle to clean the inner wall of the sampling needle, waste liquid generated by cleaning is discharged out of the cleaning container 1 through the cleaning cavity and the waste liquid hole 3.1 under the action of a third liquid pumping pump 9.2, if the cleaning liquid used by the inner wall of the sampling needle is large, the cleaning waste liquid possibly overflows from the upper opening edge of the cleaning cavity in the cleaning process, and the overflowing cleaning waste liquid is discharged out of the cleaning container 1 through the second overflow groove 5.1, the overflow cavity 5.2 and the overflow hole 5.3 under the action of the first liquid pumping pump 7.2, so that the cleaning waste liquid is effectively prevented from overflowing to the outer side of the cleaning container 1, and the normal operation of the instrument is ensured; when the outer wall of the sample adding needle is cleaned, cleaning liquid is injected into the cleaning cavity through the liquid inlet hole 2.6 by the liquid injection pipeline 6.1, the outer wall of the sample adding needle is cleaned, and waste liquid generated by cleaning is discharged out of the cleaning container 1 through the cleaning cavity and the waste liquid hole 3.1 under the action of the third liquid pumping pump 9.2; in the cleaning process, the cleaning waste liquid overflowing from the upper opening edge of the cleaning cavity is discharged out of the cleaning container 1 through the second overflow groove 5.1, the overflow cavity 5.2 and the overflow hole 5.3 under the action of the first liquid pump 7.2, so that the normal operation of the instrument is ensured;
after application of sample needle inner wall and outer wall washing accomplished, the application of sample needle promotes upwards, second drawing liquid pump 8.2 provides the negative pressure for drawing liquid hole 4.1 in promoting the in-process, the liquid drop on the application of sample needle outer wall is taken away to the negative pressure in drawing liquid hole 4.1 (in application of sample needle promotion process, can also wash the application of sample needle according to actual demand while the lifting, carry out the negative pressure drawing to application of sample needle outer wall simultaneously), avoid the liquid drop wall built-up, the cleaning performance of application of sample needle has been improved, cross contamination or sample dilution because of application of sample needle washs incomplete and arouse have been reduced, the reliability and the repeatability of testing result have been improved.
It should be emphasized that the above-described embodiments are merely exemplary embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications, substitutions, improvements, etc. within the technical scope of the present invention, and these modifications and improvements should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a application of sample needle cleaning station for biochemical immunity appearance, includes the washing container and sets up cleaning unit, flowing back unit on the washing container, its characterized in that: the cleaning device also comprises an overflow unit and a liquid hanging prevention unit which are arranged on the cleaning container, wherein the upper part of the overflow unit is communicated with the cleaning unit and discharges cleaning liquid overflowing from the cleaning unit; the liquid hanging prevention unit is communicated with the upper part of the cleaning unit.
2. The cleaning station for the sample-adding needle of the biochemical immunity instrument according to claim 1, characterized in that: the cleaning unit comprises a first overflow groove formed in the upper portion of the cleaning container from top to bottom and a cleaning cavity formed in the length direction of the cleaning container, and the upper portion of the cleaning cavity extends upwards into the first overflow groove.
3. The cleaning station for the sample-adding needle of the biochemical immunity instrument according to claim 2, characterized in that: the cleaning unit further comprises at least two liquid inlet holes which are horizontally formed in the upper portion of the cleaning container, and each liquid inlet hole is communicated with the upper portion of the cleaning cavity through a first connecting channel which is obliquely arranged.
4. The cleaning station for the sample-adding needle of the biochemical immunity instrument according to claim 3, characterized in that: the liquid hanging prevention unit comprises at least one liquid pumping hole which is arranged at the upper part of the cleaning container, the liquid pumping hole is communicated with the upper part of the cleaning cavity through a second connecting channel which is horizontally arranged, and the height of the liquid pumping hole is higher than that of the liquid inlet hole and lower than the bottom wall of the first overflow groove.
5. The cleaning station for the sample-adding needle of the biochemical immunity instrument according to claim 2, characterized in that: the liquid discharge unit comprises a waste liquid hole and a third connecting channel which are horizontally formed in the lower portion of the cleaning container, one end of the third connecting channel is communicated with the waste liquid hole, and the other end of the third connecting channel is communicated with the lower portion of the cleaning cavity.
6. The cleaning station for the sample-adding needle of the biochemical immunity instrument according to claim 2, characterized in that: the cleaning cavity comprises an upper expanding section, a circular table connecting section and a lower cleaning section, wherein the circular table connecting section is gradually contracted from top to bottom, the lower cleaning section vertically extends downwards from the bottom of the circular table connecting section, and the upper part of the upper expanding section extends into the first overflow groove.
7. The cleaning station for the sample-adding needle of the biochemical immunity instrument according to claim 6, characterized in that: and a notch with an arc-shaped structure is formed on the upper opening edge of the upper expansion section.
8. The cleaning station for the sample-adding needle of the biochemical immunity instrument according to claim 2, characterized in that: the overflow unit comprises a second overflow groove arranged on the groove wall of the first overflow groove and an overflow cavity arranged along the length direction of the cleaning container, the top of the overflow cavity is communicated with the second overflow groove, and the bottom of the overflow cavity is communicated with an overflow hole arranged at the bottom of the cleaning container.
9. The cleaning station for the sample-adding needle of the biochemical immunity instrument according to claim 2, characterized in that: the cleaning container is formed by connecting an upper cylindrical section and a lower cylindrical section, the diameter of the upper cylindrical section is larger than that of the lower cylindrical section, and a pair of mounting planes are arranged on the outer wall of the lower cylindrical section.
10. A cleaning system for a sampling needle is characterized in that: the sample adding needle cleaning station comprises a sample adding needle cleaning station as defined in any one of claims 1 to 9, a liquid injection pipeline communicated with the cleaning unit, a first liquid discharge pipeline communicated with the overflow unit, a second liquid discharge pipeline communicated with the liquid hanging prevention unit, and a third liquid discharge pipeline communicated with the liquid discharge unit, wherein outlets of the first liquid discharge pipeline, the second liquid discharge pipeline and the third liquid discharge pipeline are communicated with a waste liquid container, and an inlet of the liquid injection pipeline is communicated with a cleaning liquid containing container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120758058.8U CN216460602U (en) | 2021-04-14 | 2021-04-14 | Sample adding needle cleaning station and sample adding needle cleaning system for biochemical immunity instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120758058.8U CN216460602U (en) | 2021-04-14 | 2021-04-14 | Sample adding needle cleaning station and sample adding needle cleaning system for biochemical immunity instrument |
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| Publication Number | Publication Date |
|---|---|
| CN216460602U true CN216460602U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120758058.8U Active CN216460602U (en) | 2021-04-14 | 2021-04-14 | Sample adding needle cleaning station and sample adding needle cleaning system for biochemical immunity instrument |
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| CN (1) | CN216460602U (en) |
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2021
- 2021-04-14 CN CN202120758058.8U patent/CN216460602U/en active Active
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