CN205164763U - From inhaling quantitative pipette - Google Patents
From inhaling quantitative pipette Download PDFInfo
- Publication number
- CN205164763U CN205164763U CN201520849486.6U CN201520849486U CN205164763U CN 205164763 U CN205164763 U CN 205164763U CN 201520849486 U CN201520849486 U CN 201520849486U CN 205164763 U CN205164763 U CN 205164763U
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- Prior art keywords
- capillary
- micropore
- pipette
- quantitative pipette
- self
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Abstract
The utility model provides a from inhaling quantitative pipette, gasbag, ventilative bag, capillary are held between the fingers including crowding to this ration pipette, the capillary has upper shed end and under shed end, zonulae occludens is held with the upper shed of capillary to the crowded gasbag of holding between the fingers, be equipped with first micropore on the capillary, be equipped with the second micropore on the ventilative bag, the outer wall of capillary is hugged closely at the both ends of ventilative bag, form the cavity cavity between the inside wall of ventilative bag and the outer wall of capillary, first micropore setting be in on the capillary wall in the cavity cavity. Micro liquid can be absorb to this ration pipette, can the automatic shutdown when the ormal weight when the imbibition, and the range is accurate, convenient operation, the at utmost reduces intensity of labour and experimental error, is fit for extensive the popularization and application.
Description
Technical field
The utility model belongs to experiment equipment technical field, is specifically related to the quantitative pipette of a kind of self-priming.
Background technology
Quantitatively moving liquid is the most general experimental implementation of all physics, chemistry and biology laboratory, jumboly move the pipette that liquid all uses glass or plastics both at home and abroad, the liquid that moves of low capacity or trace all mixes the use of disposable suction nozzle at micropipettor both at home and abroad, there will be the inaccurate phenomenon of range after but micropipettor repeatedly uses, have a strong impact on experimental result.Therefore need to provide a kind of energy accurately imbitition, the quantitative pipette of cross pollution also can not occur simultaneously.
Utility model content
Utility model object: the quantitative pipette of self-priming providing a kind of range accurate, easy to use.
Technical scheme: the quantitative pipette of self-priming, this quantitative pipette comprises and squeezes air bag, ventilative capsule, capillary, described capillary has upper open end and lower open end, the described upper open end compact siro spinning technology squeezing air bag and capillary, the inner chamber squeezing air bag is connected with capillary lumen is through, described capillary is provided with the first micropore, described ventilative capsule is provided with the second micropore, the outer wall of capillary is close at the two ends of described ventilative capsule, hollow cavity is formed between the madial wall of described ventilative capsule and the outer wall of capillary, the first described micropore is arranged on the capillary wall in described hollow cavity.By under pipette inclination or level, allow the lower open end of capillary and liquid comes into contact, liquid can be inhaled in capillary by capillarity, gas in capillary is discharged in ventilative capsule by the first micropore of its pipe shaft, and now ventilative capsule internal gas pressure increases, and second micropore of gas again on ventilative capsule is discharged, when in capillary, the liquid level of institute's liquids arrives the first micropore place, micropore is blocked by liquid, and owing to squeezing the pressure of gas in air bag cavity, liquid will stop being inhaled into automatically.When liquid inhale good after, now light pinching is pinched air bag and just the liquid in capillary all can be oozed again, completes the process quantitatively pipetting liquid.
As preferably of the present utility model, the internal diameter of described capillary is 0.5 ~ 3 millimeter, and the internal diameter of described capillary is preferably 1.0 ~ 2.5 millimeters.
As preferably of the present utility model, the lower open end of described capillary has the length of predetermined measurement value to micropore position, and the internal diameter of this length and capillary determines the volume of this quantitative pipette accurate measuring liquid.The cross-sectional area of quantitative capillary tube inner chamber and micropore, to the volume amassed as it of capillary lower open end length, are suitably chosen the internal diameter of quantitative capillary tube and the position of micropore, can be made the quantitative pipette of various capacity specifications.As 2 μ L, 10 μ L, 50 μ L, 100 μ L, 150 μ L, 200 μ L, 500 μ L, 1000 μ L etc.
As preferably of the present utility model, the volume of this quantitative pipette accurate measuring liquid is 2 ~ 1000 μ L.
As preferably of the present utility model, describedly squeeze air bag and ventilative capsule passes through tubes connection, be connected the preparation process that can simplify this quantitative pipette by squeezing air bag with ventilative capsule, simultaneously pipe inner wall is close to capillary outer wall, makes to squeeze air bag and ventilative capsule can not come off in use.
As preferably of the present utility model, the diameter of described first micropore is 0.01 ~ 0.5 millimeter.
As preferably of the present utility model, the described air bag that squeezes is elliposoidal or pancake, the described material squeezing air bag is transparent polymer elastomeric material, elliposoidal and pancake air bag that squeezes are all more comfortable in order to allow user use, and use transparent elastic material to be to make observation and extruding convenient.
As preferably of the present utility model, the material of described capillary is glass or high molecular weight hydrophilic material.
As preferably of the present utility model, described in have the diameter of the second micropore to be 0.01 ~ 1mm.
Technique effect:
(1) the quantitative pipette that the utility model provides can pipette the liquid of trace, and easy to operate, range is accurate, at utmost reduces experimental error.
(2) preparation cost of the present utility model is lower, improves conventional efficient, easy to utilize.
Accompanying drawing explanation
The schematic diagram of the quantitative pipette that Fig. 1 the utility model provides.
The schematic diagram of what Fig. 2 the utility model provided the squeeze quantitative pipette of air bag and saturating airbags.
The schematic diagram of what Fig. 3 the utility model provided squeeze air bag and saturating airbags.
The schematic diagram of the capillary that Fig. 4 the utility model provides.
Detailed description of the invention
According to following embodiment, the utility model can be understood better.But those skilled in the art will readily understand, the content described by embodiment only for illustration of the present invention, and should can not limit the present invention described in detail in claims yet.
In Fig. 1 ~ 4,1 for squeezing air bag, and 2 is ventilative capsule, and 3 is capillary, and 4 is the first micropore, and 5 is conduit, and 6 is the second micropore.
As shown in Figure 1, the quantitative pipette of self-priming, this quantitative pipette comprises and squeezes air bag 1, ventilative capsule 2, capillary 3, as shown in Figure 4, described capillary 3 has upper open end and lower open end, the described upper open end compact siro spinning technology squeezing air bag 1 and capillary 3, described capillary 3 is provided with the first micropore 4, described ventilative capsule is provided with the second micropore 6, the outer wall of capillary 3 is close at the two ends of described ventilative capsule 2, the madial wall of described ventilative capsule 2 and the outer wall of capillary 3 form hollow cavity, and the first described micropore 4 is arranged on the capillary wall in described hollow cavity.It is airtight for squeezing air bag 1 with capillary 3 junction, and when squeezing air bag 1, junction can not outwardly leak gas.The size of ventilative capsule 2 can arbitrarily be arranged, but the two ends of ventilative capsule 2 and capillary wall compact siro spinning technology, the ventilative cavity forming hollow between capsule 2 and capillary outer wall, in ventilative capsule 2, gas is communicated with the external world by the second micropore 6, the capillary wall at the first micropore 4 place is positioned at this cavity, arranging guarantee liquid when using this quantitative pipette so automatically to suck and automatically can stop capillarity, reaching the object of quantitatively moving liquid.On this quantitative pipette the first micropore 4 diameter described in the diameter of micropore be 0.01 ~ 0.5 millimeter.
Further, the internal diameter of described capillary 3 is 0.5 ~ 3.0 millimeter, and the lower open end of capillary 3 has predetermined length to micropore position, and the diameter of this predetermined length and capillary determines the volume of this quantitative pipette accurate measuring liquid.The cross-sectional area of quantitative capillary tube 3 inner chamber and micropore, to the volume amassed as it of capillary 3 lower open end length, are suitably chosen the internal diameter of quantitative capillary tube and the position of micropore, can be made the quantitative pipette of various capacity specifications.As 2 μ L, 10 μ L, 50 μ L, 100 μ L, 150 μ L, 200 μ L, 500 μ L, 1000 μ L etc.The diameter of capillary along with the manufactured materials of described capillary, surface tension and liquid proportion and maintain the necessity expecting amount of liquid capillary force amount and change.
As shown in Figures 2 and 3, the air bag 1 that squeezes in this quantitative pipette is connected by conduit 5 with ventilative capsule 2, the preparation process that can simplify this quantitative pipette is connected with ventilative capsule 2 by squeezing air bag 1, simultaneously pipe inner wall is close to capillary outer wall, makes to squeeze air bag and ventilative capsule can not come off in use.The ground that ventilative capsule 2 bottom and capillary are fitted can extend to the top of capillary 3 lower open end.
The described air bag that squeezes is elliposoidal or pancake, the described material squeezing air bag is transparent polymer elastomeric material, elliposoidal and pancake air bag that squeezes are all more comfortable in order to allow user use, and use transparent polymer material to be to make observation and extruding convenient.The material of described capillary is glass or high molecular weight hydrophilic material, the inner surface of capillary can also be coated with anticoagulant etc., but, those skilled in the art should be understood that, pipette of the present invention is not limited to concrete material cited herein, and those of ordinary skill in the art should know, any material that can keep liquid solution can be used.
During use, by under pipette inclination or level, allow the lower open end of capillary 3 and liquid comes into contact, liquid can be inhaled in capillary by capillarity, when the liquid level of institute's liquids in capillary arrives micropore 4 place, micropore 4 is blocked by liquid, gas in capillary is discharged in ventilative capsule by the first micropore of its pipe shaft, now ventilative capsule internal gas pressure increases, second micropore of gas again on ventilative capsule is discharged, owing to squeezing the pressure of the gas in air bag 1, liquid will stop being inhaled into automatically.When after liquid saturation, now light pinching is pinched air bag 1 and just the liquid in capillary 3 all can be oozed again, completes the process quantitatively pipetting liquid.
Embodiment 1:
The internal diameter of capillary is 1.16mm, and micropore is 47.3mm to the distance of capillary bottom opening, and the volume of the accurate imbitition of this quantitative pipette is 50 μ L.
Embodiment 2:
The internal diameter of capillary is 1.60mm, and micropore is 50mm to the distance of capillary bottom opening, and the volume of the accurate imbitition of this quantitative pipette is 100 μ L.
Embodiment 3:
The internal diameter of capillary is 1.98mm, and micropore is 65mm to the distance of capillary bottom opening, and the volume of the accurate imbitition of this quantitative pipette is 200 μ L.
Claims (9)
1. the quantitative pipette of self-priming, it is characterized in that, this quantitative pipette comprises and squeezes air bag (1), ventilative capsule (2), capillary (3), described capillary (3) has upper open end and lower open end, the described upper open end compact siro spinning technology squeezing air bag (1) and capillary (3), described capillary (3) is provided with the first micropore (4), described ventilative capsule (2) is provided with the second micropore (6), the outer wall of capillary (3) is close at the two ends of described ventilative capsule (2), hollow cavity is formed between the madial wall of described ventilative capsule (2) and the outer wall of capillary (3), described the first micropore (4) is arranged on the capillary wall in described hollow cavity.
2. the quantitative pipette of self-priming according to claim 1, is characterized in that, the internal diameter of described capillary (3) is 0.5 ~ 3mm.
3. the quantitative pipette of self-priming according to claim 1 and 2, it is characterized in that, lower open end to the first micropore (4) position of described capillary (3) has predetermined length, and the internal diameter of this predetermined length and capillary (3) determines the volume of this quantitative pipette accurate measuring liquid.
4. the quantitative pipette of self-priming according to claim 3, is characterized in that, the volume of this quantitative pipette accurate measuring liquid is 2 ~ 1000 μ L.
5. the quantitative pipette of self-priming according to claim 1, is characterized in that, described in squeeze air bag (1) and be connected by conduit (5) with ventilative capsule (2).
6. the quantitative pipette of self-priming according to claim 1, is characterized in that, the diameter of described first micropore (4) is 0.01 ~ 0.5mm.
7. the quantitative pipette of self-priming according to claim 1, is characterized in that, described in squeeze air bag (1) for elliposoidal or pancake, described in squeeze air bag (1) material be transparent elastic material.
8. the quantitative pipette of self-priming according to claim 1, is characterized in that, the material of described capillary (3) is glass or high molecular weight hydrophilic material.
9. the quantitative pipette of self-priming according to claim 1, is characterized in that, described in have the diameter of the second micropore (6) to be 0.01 ~ 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849486.6U CN205164763U (en) | 2015-10-29 | 2015-10-29 | From inhaling quantitative pipette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849486.6U CN205164763U (en) | 2015-10-29 | 2015-10-29 | From inhaling quantitative pipette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205164763U true CN205164763U (en) | 2016-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520849486.6U Withdrawn - After Issue CN205164763U (en) | 2015-10-29 | 2015-10-29 | From inhaling quantitative pipette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205164763U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268493A (en) * | 2015-10-29 | 2016-01-27 | 东台市科华医疗器械有限公司 | Self-suction quantitative transfer pipette |
| CN107045067A (en) * | 2017-03-27 | 2017-08-15 | 武汉优视科技有限公司 | A kind of liquid-adding device for Western blotting |
| CN108507860A (en) * | 2018-06-19 | 2018-09-07 | 江苏科华医疗器械科技有限公司 | A kind of novel all-in-one sample diluting device |
| CN111822068A (en) * | 2020-08-22 | 2020-10-27 | 江苏科华医疗器械科技有限公司 | Double-tube single-quantitative pipette and pipetting method thereof |
| CN111957363A (en) * | 2020-08-22 | 2020-11-20 | 江苏科华医疗器械科技有限公司 | Single quantitative pipette and pipetting method thereof |
-
2015
- 2015-10-29 CN CN201520849486.6U patent/CN205164763U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268493A (en) * | 2015-10-29 | 2016-01-27 | 东台市科华医疗器械有限公司 | Self-suction quantitative transfer pipette |
| CN105268493B (en) * | 2015-10-29 | 2017-07-07 | 江苏科华医疗器械科技有限公司 | The quantitative pipette of self-priming |
| CN107045067A (en) * | 2017-03-27 | 2017-08-15 | 武汉优视科技有限公司 | A kind of liquid-adding device for Western blotting |
| CN108507860A (en) * | 2018-06-19 | 2018-09-07 | 江苏科华医疗器械科技有限公司 | A kind of novel all-in-one sample diluting device |
| CN108507860B (en) * | 2018-06-19 | 2024-09-10 | 江苏科华医疗器械科技有限公司 | Integrated sample diluter |
| CN111822068A (en) * | 2020-08-22 | 2020-10-27 | 江苏科华医疗器械科技有限公司 | Double-tube single-quantitative pipette and pipetting method thereof |
| CN111957363A (en) * | 2020-08-22 | 2020-11-20 | 江苏科华医疗器械科技有限公司 | Single quantitative pipette and pipetting method thereof |
| CN111822068B (en) * | 2020-08-22 | 2023-07-04 | 江苏科华医疗器械科技有限公司 | Double-tube single quantitative pipette and pipetting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 224217 Yancheng City Dongtai province Jiangsu City suburb industrial park five East Road No. 8 Patentee after: Jiangsu KELONG Medical Instrument Technology Co., Ltd. Address before: 224217 Yancheng City Dongtai province Jiangsu City suburb industrial park five East Road No. 8 Patentee before: DONGTAI KEHUA MEDICAL INSTRUMENT CO., LTD. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160420 Effective date of abandoning: 20170707 |