CN202803267U - Pipettor - Google Patents
Pipettor Download PDFInfo
- Publication number
- CN202803267U CN202803267U CN 201220298690 CN201220298690U CN202803267U CN 202803267 U CN202803267 U CN 202803267U CN 201220298690 CN201220298690 CN 201220298690 CN 201220298690 U CN201220298690 U CN 201220298690U CN 202803267 U CN202803267 U CN 202803267U
- Authority
- CN
- China
- Prior art keywords
- screen pipe
- pipettor
- filter core
- sleeve
- screw thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Sampling And Sample Adjustment (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The utility model discloses a pipettor, which comprises a sleeve barrel, a suction head and a filter pipe, wherein both ends of the filter pipe are detachably connected with the sleeve barrel and the suction head in a sealing manner respectively; a filter cartridge is arranged in the filter pipe; and the external circular surface of the filter cartridge is connected with the internal circular surface of the filter pipe in the sealing manner. According to the utility model, the filter pipe detachably connected with the sleeve barrel and the suction head is arranged; and the filter cartridge in the filter pipe is used for filtering microbes, pyrogens and the like from air in an internal cavity of the pipettor, thereby preventing the air in the internal cavity from polluting a sample. In addition, the filter cartridge can effectively prevent the sample in the suction pipe from entering the internal cavity of the pipettor, thereby preventing the sample from polluting the pipettor.
Description
Technical field
The utility model relates to biology, chemistry and medicine and other fields, particularly a kind of pipettor.
Background technology
Pipettor is the quantitative common tool of drawing various liquid, since long-time the use, the meeting such as some microorganisms, solid particle and the pyrogen that accumulates in its inner chamber contaminated samples; Because entering the material of pipettor, volatilization or suck-back not only can cause the cross pollution of sample room also can corrode pipettor; And use very high with the cost of filter core suction nozzle.
The utility model content
In order to save cost, prevent the contaminated samples such as microorganism, solid particle and pyrogen that accumulate in the pipettor inner chamber, the utility model provides a kind of pipettor.
Described technical scheme is as follows:
A kind of pipettor, comprise sleeve and suction nozzle, also comprise a screen pipe, the two ends of described screen pipe are connected with the suction nozzle removable seal with described sleeve respectively, be provided with a filter core in the described screen pipe, the periphery of described filter core and the inner headed face of described screen pipe are tightly connected.
Described filter core is made by milipore filter, microporous barrier or NF membrane filtering material, and the periphery of described filter core is provided with sealing ring, realizes being tightly connected with the inner headed face of described screen pipe.
Described screen pipe comprises the first screen pipe and the second screen pipe, described the first screen pipe is connected by screw thread or cutting ferrule with described the second screen pipe, described the first screen pipe and described sleeve removably connect by screw thread or cutting ferrule, described the second screen pipe and described suction nozzle removably connect, and described filter core is arranged in described the second screen pipe.
One end of described the first screen pipe is provided with internal thread, its other end is provided with external screw thread, one end of described the second screen pipe is provided with internal thread, described sleeve is connected with the internal thread of described the first screen pipe by the external screw thread of one end, and described the second screen pipe is connected with the external screw thread of described the first screen pipe by its internal thread.
Moulding one fixed platform in described the second screen pipe, described the first screen pipe be with after described the second screen pipe is fixedly connected with, and described filter core places between the end of described the first screen pipe and the described fixed platform in the formed space.
The external diameter of described the first screen pipe equates that with the external diameter of described sleeve the external diameter of described the second screen pipe is less than the internal diameter of the described suction nozzle of dimension.
The externally threaded root of described the first screen pipe and the external screw thread root of described sleeve are respectively equipped with a sealing ring, are used for realizing being tightly connected of jointing.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
The screen pipe that A removably connects by setting and sleeve and suction nozzle, and fall microorganism in the pipettor inner chamber air, pyrogen etc. by the filter element filtering in the screen pipe, thus prevent the air pollution sample of inner chamber; Filter core can effectively stop the sample in the suction nozzle to enter the pipettor inner chamber simultaneously, thereby prevents the sample contamination pipettor.The suction nozzle of the screen pipe of different size and the sleeve of respective model and dimension is complementary, because its function anti-pollution, anti-suck no longer needs to use the suction nozzle with filter core when using the pipettor of being furnished with this kind screen pipe, thereby realizes saving cost.
B screen pipe of the present utility model is without microorganism, apyrogeneity, the junction good airproof performance, do not affect the precision of pipettor.
C screen pipe of the present utility model and filter core can be changed easily and fast, thereby avoid often pipettor being carried out autoclave sterilization.In situation about not requiring without microbial contamination, screen pipe can use for a long time.The screen pipe of different size adapts to the pipettor of dimension and the suction nozzle of dimension.
D in addition, screen pipe of the present utility model can be designed to water white transparency or colourful transparent, not only has been convenient to observe screen pipe inner case in the operating process but also has increased the aesthetic feeling of pipettor.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the pipettor structural representation that the utility model embodiment one provides;
Fig. 2 is the pipettor structural representation that the utility model embodiment two provides.
1-sleeve among the figure; 2-screen pipe, 21-the first screen pipe, 22-the second screen pipe; The 3-fixed platform; The 4-sealing ring; The 5-filter core; The 6-sealing ring.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further detail.
Embodiment one
As shown in Figure 1, the utility model provides a kind of pipettor, comprises sleeve and suction nozzle, also comprise a screen pipe, the two ends of screen pipe are connected with the suction nozzle removable seal with described sleeve respectively, are provided with a filter core in the screen pipe, and the periphery of filter core and the inner headed face of described screen pipe are tightly connected.Filter core is wherein made by milipore filter, microporous barrier or NF membrane filtering material, the periphery of described filter core is provided with sealing ring, realize sealing with the inner headed face of described screen pipe by sealing ring 6, after screen pipe and sleeve connect by screw thread or cutting ferrule, filter core is arranged between the end face of fixed platform and sleeve in the formed space, by sealing ring 4 sealings, prevent gas leakage between screen pipe and the sleeve.
Embodiment two
As shown in Figure 2, screen pipe wherein comprises the first screen pipe and the second screen pipe, and the first screen pipe and the second screen pipe are threaded connection, and the first screen pipe and sleeve removably connect, the second screen pipe and suction nozzle removably connect, and filter core is arranged in the second screen pipe.
One end of the first screen pipe is provided with internal thread, its other end is provided with external screw thread, one end of the second screen pipe is provided with internal thread, and sleeve is connected with the internal thread of the first screen pipe by the external screw thread of its lower end, and the second screen pipe is connected with the external screw thread of described the first screen pipe by its internal thread.
Moulding one fixed platform in the second screen pipe, the first screen pipe be with after the second screen pipe is fixedly connected with, and filter core places between the end of the first screen pipe and the fixed platform in the formed space.
The external diameter of the first screen pipe equates that with the external diameter of sleeve the external diameter of the second screen pipe is less than the internal diameter of the described suction nozzle of dimension.Simultaneously, the externally threaded root of the first screen pipe and the external screw thread root of sleeve are respectively equipped with a sealing ring, are used for realizing being tightly connected of jointing, prevent gas leakage.
The lower end of sleeve and screen pipe can be made by various water white transparencies, colourful transparent or opaque material.
The first screen pipe can be made with bad corrosion material, in order to do not use for a long time under requiring without the condition of microbial contamination.
The pipettor of this utility model need to increase the displacement of its suction nozzle pushing-unloading device a little.
This utility model screen pipe simple in structure, part is few, easy to assembly, be convenient to produce.
Above-mentioned the utility model embodiment sequence number does not represent the quality of embodiment just to description.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. a pipettor comprises sleeve and suction nozzle, it is characterized in that, also comprise a screen pipe, the two ends of described screen pipe are connected with the suction nozzle removable seal with described sleeve respectively, are provided with a filter core in the described screen pipe, and the periphery of described filter core and the inner headed face of described screen pipe are tightly connected.
2. pipettor according to claim 1 is characterized in that,
Described filter core is made by milipore filter, microporous barrier or NF membrane filtering material, and the periphery of described filter core is provided with sealing ring, realizes being tightly connected with the inner headed face of described screen pipe.
3. pipettor according to claim 1 and 2 is characterized in that,
Described screen pipe comprises the first screen pipe and the second screen pipe, described the first screen pipe is connected by screw thread or cutting ferrule with described the second screen pipe, described the first screen pipe and described sleeve removably connect by screw thread or cutting ferrule, described the second screen pipe and described suction nozzle removably connect, and described filter core is arranged in described the second screen pipe.
4. pipettor according to claim 3 is characterized in that,
One end of described the first screen pipe is provided with internal thread, its other end is provided with external screw thread, one end of described the second screen pipe is provided with internal thread, described sleeve is connected with the internal thread of described the first screen pipe by the external screw thread of one end, and described the second screen pipe is connected with the external screw thread of described the first screen pipe by its internal thread.
5. pipettor according to claim 3 is characterized in that,
Moulding one fixed platform in described the second screen pipe, described the first screen pipe be with after described the second screen pipe is fixedly connected with, and described filter core places between the end of described the first screen pipe and the described fixed platform in the formed space.
6. according to claim 4 or 5 described pipettors, it is characterized in that,
The external diameter of described the first screen pipe equates that with the external diameter of described sleeve the external diameter of described the second screen pipe is less than the internal diameter of the described suction nozzle of dimension.
7. pipettor according to claim 6 is characterized in that,
The externally threaded root of described the first screen pipe and the external screw thread root of described sleeve are respectively equipped with a sealing ring, are used for realizing being tightly connected of jointing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298690 CN202803267U (en) | 2012-06-25 | 2012-06-25 | Pipettor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298690 CN202803267U (en) | 2012-06-25 | 2012-06-25 | Pipettor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202803267U true CN202803267U (en) | 2013-03-20 |
Family
ID=47862213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220298690 Expired - Fee Related CN202803267U (en) | 2012-06-25 | 2012-06-25 | Pipettor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202803267U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10184950B2 (en) | 2013-03-15 | 2019-01-22 | Diagnostics For The Real World, Ltd | HIV viral load testing |
| CN113058672A (en) * | 2021-04-15 | 2021-07-02 | 四川大学华西医院 | Detachable pipettor with filtering device and manufacturing method thereof |
-
2012
- 2012-06-25 CN CN 201220298690 patent/CN202803267U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10184950B2 (en) | 2013-03-15 | 2019-01-22 | Diagnostics For The Real World, Ltd | HIV viral load testing |
| US10330694B2 (en) | 2013-03-15 | 2019-06-25 | Diagnostics For The Real World, Ltd | Apparatus and method for automated sample preparation and adaptor for use in the apparatus |
| CN113058672A (en) * | 2021-04-15 | 2021-07-02 | 四川大学华西医院 | Detachable pipettor with filtering device and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20160625 |