CN208928777U - A kind of sample needle cleaning device - Google Patents
A kind of sample needle cleaning device Download PDFInfo
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- CN208928777U CN208928777U CN201821425204.XU CN201821425204U CN208928777U CN 208928777 U CN208928777 U CN 208928777U CN 201821425204 U CN201821425204 U CN 201821425204U CN 208928777 U CN208928777 U CN 208928777U
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- hole
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- waste liquid
- sample needle
- air
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Abstract
The utility model discloses a kind of sample needle cleaning device, including a device noumenon, and air inlet and discharge outlet are equipped on described device ontology；Air porthole, sample clean hole and waste liquid hole are formed in described device ontology, in which: the air porthole is connected and is located at the upper end in the sample clean hole with the end of the air inlet；The sample clean hole is arranged in vertical direction with the air porthole, and a connecting hole is equipped between the sample clean hole and the waste liquid hole；Waste liquid hole interval is set to by the sample clean hole, and the waste liquid hole connects the discharge outlet, and the diameter of the discharge outlet is greater than the diameter of the connecting hole.The sample needle cleaning device of the application can be with the inner and outer wall of cleaning sample needle, and prevent cleaning solution on outer wall is stained with liquid, and can solve the problems, such as that cleaning solution excessive when the cleaning of sample needle splashes and diffuses out.
Description
Technical field
The utility model relates to Laboratory Instruments fields, are a kind of sample needle cleaning devices more specifically.
Background technique
The absorption and addition for usually carrying out sample in medical self-reacting device by sample needle are tested now, in order to prevent sample
Cross contamination between product has to the inside and outside wall cleaning for carrying out sample needle before each sample suction.Existing commonly use is done
Method is to pump out cleaning solution inside sample needle by pump, and the cleaning of needle inner wall is achieved.Sample needle is inserted into simultaneously
In one elongated pipe, the cleaning solution that sample needle spues has little time to flow away, and can diffuse out from the bottom up from elongated tubular, is come with this clear
Wash outer wall.But above-mentioned cleaning way, there are some problems, sample needle outer wall, which might have, speckles with cleaning solution, and sample needle, which spues, to be cleaned
The flow velocity of liquid is too fast to have spillage, and discharge-amount can excessively diffuse out service sink.
Utility model content
Since the above problem exists in the prior art, the application proposes a kind of sample needle cleaning device, its object is to
Solving the problems, such as the cleaning way of sample needle in the prior art can not remove that sample needle outer wall is stained with liquid and cleaning solution flow velocity is too fast
The problem of caused cleaning solution splashes and diffuses out.
In order to achieve the above objectives, the application uses following technological means:
A kind of sample needle cleaning device, including a device noumenon are equipped with air inlet and draining on described device ontology
Mouthful；Air porthole, sample clean hole and waste liquid hole are formed in described device ontology, in which: the air porthole and institute
The end for stating air inlet is connected and is located at the upper end in the sample clean hole；The sample clean hole is in the air porthole
Vertical direction setting, and a connecting hole is equipped between the sample clean hole and the waste liquid hole；Waste liquid hole interval is set to
By the sample clean hole, the waste liquid hole connects the discharge outlet, and the diameter of the discharge outlet is greater than the connecting hole
Diameter.
It is preferred that the air porthole is platypelloid type.
It is preferred that the upper end opening in the waste liquid hole is connected to the upper end in the sample clean hole, the waste liquid hole it is upper
The upper end in end and the sample clean hole forms the groove of an invagination.
It is preferred that the upper end in the sample clean hole is equipped with limiting device, and after sample needle is inserted into the limiting device, institute
The bottom of the bottom and the sample clean hole of stating sample needle keeps a gap.
Due to using above-mentioned technological means, the sample needle cleaning device of the application can be with the inner wall of cleaning sample needle and outer
Wall, prevent cleaning solution on outer wall is stained with liquid, and can solve the problems, such as that cleaning solution excessive when the cleaning of sample needle splashes and diffuses out.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the application；
Fig. 2 is the sectional view of Fig. 1.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Referring to figure 1 and figure 2, Fig. 1 is the structural schematic diagram of the embodiment of the application；Fig. 2 is the sectional view of Fig. 1.
The sample needle cleaning device of the present embodiment, including a device noumenon A are equipped with air inlet 1 and draining on described device ontology A
Mouth 5；Air porthole 2, sample clean hole 3 and waste liquid hole 4 etc. are formed in described device ontology A.
Air inlet 1 is connected to gas source by tracheae.
The air porthole 2 is connected with the end that the air inlet 1 protrudes into device noumenon A and is located at the sample clean
The upper end in hole 3.The air porthole 2 is platypelloid type.The gas that gas source provides enters in air porthole 2 by air inlet 1,
The structure of platypelloid type makes air form air wall when passing through the air porthole 2.
The sample clean hole 3 is arranged in vertical direction with the air porthole 2, and the sample clean hole 3 with it is described
A connecting hole 6 is equipped between waste liquid hole 4.The diameter in sample clean hole 3 is slightly larger than the diameter of sample needle 7, by sample needle when cleaning
It is inserted into sample clean hole 3.Cleaning solution by the inner wall of sample needle be flowed into gap it is counter diffuse in sample clean hole 3 it is clear again
Wash the outer wall of sample needle 7.
In order to preferably clean, prevents sample needle from tampering, limiting device can be equipped in the upper end in the sample clean hole 3
(being not drawn into the present embodiment), after sample needle 7 is inserted into the limiting device, the bottom of the sample needle and the sample clean hole
Bottom keep a gap.
The interval of waste liquid hole 4 is set to by the sample clean hole 3, and the waste liquid hole 4 connects the discharge outlet 5, and institute
The diameter for stating discharge outlet 5 is greater than the diameter of the connecting hole 6.Waste liquid hole is connected to the sample clean by the connecting hole 6 of bottom
Hole 3, the diameter of connecting hole 6 are less than the diameter of discharge outlet 5, and the speed that cleaning solution can be made to be discharged is diffused in lower than the cleaning solution
Speed in sample clean hole 3, it is ensured that can be with the outer wall of cleaning sample needle 7.The upper end opening in the waste liquid hole 4 is connected to the sample
Product clean the upper end in hole 3, and the upper end in the upper end in the waste liquid hole 4 and the sample clean hole 3 forms the groove of an invagination, can be with
Prevent cleaning solution from diffusing out, cleaning solution can flow in waste liquid hole 4 after diffusing out from the upper end in sample clean hole 3.
The application operates as follows when in use: sample needle 7 is inserted into sample clean hole 3, and needle mouth and bottom surface are kept for one section
Gap.Cleaning solution flows out 7 inner wall of cleaning sample needle from sample needle 7, spues into sample clean hole 3, in sample clean hole 3
Cleaning solution has little time to flow to waste liquid hole 4 from connecting hole 6, will overflow upwards and be used to clean 7 outer wall of sampling needle, then from sample clean
3 upper end of hole flows in waste liquid hole 4, and sample clean hole 3 and 4 top of waste liquid hole are a groove, prevents wash liquid stream to service sink
It is external.Air passes through the air wall that air porthole 2 is formed, and can prevent liquid splash from going out groove, after sample needle 7 cleans
When being drawn upwardly out, by air wall, air-flow can blow the cleaning solution for remaining in outer wall off, prevent from remaining.
Embodiments described above is merely to illustrate the utility model rather than limitation the scope of the utility model.This
The equivalent changes and modifications that field technical staff does the utility model all should belong to the utility model the attached claims
The covering scope of book.
Claims (4)
1. a kind of sample needle cleaning device, which is characterized in that including a device noumenon, air inlet is equipped on described device ontology
And discharge outlet；Air porthole, sample clean hole and waste liquid hole are formed in described device ontology, in which:
The air porthole is connected and is located at the upper end in the sample clean hole with the end of the air inlet；
The sample clean hole is arranged in vertical direction with the air porthole, and the sample clean hole and the waste liquid hole it
Between be equipped with a connecting hole；
Waste liquid hole interval is set to by the sample clean hole, and the waste liquid hole connects the discharge outlet, and the discharge outlet
Diameter be greater than the connecting hole diameter.
2. sample needle cleaning device according to claim 1, which is characterized in that the air porthole is platypelloid type.
3. sample needle cleaning device according to claim 1, which is characterized in that the upper end opening in the waste liquid hole is connected to institute
State the upper end in sample clean hole, the groove that the upper end formation one in the upper end in the waste liquid hole and the sample clean hole is invaginated.
4. sample needle cleaning device according to claim 1, which is characterized in that the upper end in the sample clean hole is equipped with limit
Position device, after sample needle is inserted into the limiting device, the bottom in the bottom of the sample needle and the sample clean hole keeps one
Gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821425204.XU CN208928777U (en) | 2018-08-31 | 2018-08-31 | A kind of sample needle cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821425204.XU CN208928777U (en) | 2018-08-31 | 2018-08-31 | A kind of sample needle cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208928777U true CN208928777U (en) | 2019-06-04 |
Family
ID=66719515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821425204.XU Active CN208928777U (en) | 2018-08-31 | 2018-08-31 | A kind of sample needle cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208928777U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112871885A (en) * | 2019-11-29 | 2021-06-01 | 深圳市帝迈生物技术有限公司 | Cleaning device for sample adding needle, cleaning liquid path system and method thereof, and sample analyzer |
| CN116274217A (en) * | 2023-03-09 | 2023-06-23 | 宁波市锦泰橡塑有限公司 | Cleaning device for sample extraction capillary |
-
2018
- 2018-08-31 CN CN201821425204.XU patent/CN208928777U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112871885A (en) * | 2019-11-29 | 2021-06-01 | 深圳市帝迈生物技术有限公司 | Cleaning device for sample adding needle, cleaning liquid path system and method thereof, and sample analyzer |
| CN116274217A (en) * | 2023-03-09 | 2023-06-23 | 宁波市锦泰橡塑有限公司 | Cleaning device for sample extraction capillary |
| CN116274217B (en) * | 2023-03-09 | 2023-08-25 | 宁波市锦泰橡塑有限公司 | Cleaning device for sample extraction capillary |
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