CN204522997U - Quantitative pipette - Google Patents
Quantitative pipette Download PDFInfo
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- CN204522997U CN204522997U CN201420835973.2U CN201420835973U CN204522997U CN 204522997 U CN204522997 U CN 204522997U CN 201420835973 U CN201420835973 U CN 201420835973U CN 204522997 U CN204522997 U CN 204522997U
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- quantitative
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- 239000007788 liquid Substances 0.000 claims abstract description 45
- 239000011521 glass Substances 0.000 claims abstract description 7
- 239000002861 polymer material Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 2
- 210000004712 air sac Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
本实用新型涉及实验器材，尤其涉及定量移液管的改进。本实用新型定量移液管，包括气囊1、导气管2、储液囊3、定量毛细管4、所述气囊1和导气管2和储液囊3为透明高分子材料制成，内孔相通，所述定量毛细管4为透明高分子材料或玻璃材料制成，其上端位于储液囊的上部接近导气管2并保留一定的距离，定量毛细管4的内径和长度根据所需移液的容量进行选定。使用时轻捏气囊1，将定量毛细管4的下端浸入被吸的液体中，轻轻松开气囊1，液体就会被吸入定量毛细管4，当其吸满时，多余的液体就会从定量毛细管4顶端溢出并流入到储液囊3中，当吸液停止后定量毛细管4中充满被吸液体，其容量为预先设定好的容量，储液囊3中留有部分多余液体，此时再轻捏气囊1就可以将毛细管中的液体全部滴出，从而轻松、准确的完成微量、定量液体的移取。
The utility model relates to experimental equipment, in particular to the improvement of a quantitative pipette. The quantitative pipette of the utility model comprises an air bag 1, an air guide tube 2, a liquid storage bag 3, and a quantitative capillary 4. The air bag 1, the air guide tube 2 and the liquid storage bag 3 are made of transparent polymer materials, and the inner holes communicate with each other. The quantitative capillary 4 is made of transparent polymer material or glass material, and its upper end is located at the top of the liquid storage bag close to the airway tube 2 and keeps a certain distance. The inner diameter and length of the quantitative capillary 4 are selected according to the required pipetting capacity. Certainly. When in use, lightly pinch the airbag 1, immerse the lower end of the quantitative capillary 4 in the liquid to be sucked, and gently release the airbag 1, the liquid will be sucked into the quantitative capillary 4, when it is full, the excess liquid will flow from the quantitative capillary 4 The top overflows and flows into the liquid storage bag 3. When the suction stops, the quantitative capillary 4 is filled with the absorbed liquid, and its capacity is the preset capacity. There is some excess liquid in the liquid storage bag 3. At this time, lightly All the liquid in the capillary can be dripped out by pinching the air bag 1, thereby easily and accurately completing the pipetting of micro-quantity liquid.
Description
技术领域： Technical field:
本实用新型涉及实验器材，尤其涉及定量移液管的改进。 The utility model relates to experimental equipment, in particular to the improvement of a quantitative pipette.
背景技术： Background technique:
定量移液为所有物理、化学及生物实验室内时时刻刻都在做的工作，大容量的移液国内外都使用玻璃或塑料的移液管，小容量或微量的移液国内外都在使用微量移液器配上一次性的吸嘴使用，近年来部分国内外用户对微量移液也在使用江苏东台市科华医疗器械有限公司生产的自吸定量微量采血管，但对于需要移液量较大时，如在50---1000ul时则无法通过自吸定量微量采血管的毛细作用完成自动吸样。目前可以轻松、准确完成小微量液体标本移取的移液管国内外尚未见到。 Quantitative pipetting is a work that is done all the time in all physical, chemical and biological laboratories. Large-capacity pipetting uses glass or plastic pipettes at home and abroad, and small-capacity or micro-volume pipetting is used both at home and abroad. Use a micropipette with a disposable suction nozzle. In recent years, some domestic and foreign users have also used the self-priming quantitative micro blood collection tube produced by Jiangsu Dongtai Kehua Medical Instrument Co., Ltd., but for those who need to pipette When the amount is large, such as 50--1000ul, the automatic suction of the sample cannot be completed through the capillary action of the self-priming quantitative micro-collection tube. At present, the pipette that can easily and accurately complete the pipetting of small and micro liquid samples has not been seen at home and abroad.
实用新型内容： Utility model content:
针对现有技术所存在的上述不足，本实用新型所要解决的技术问题是要提供一种定量移液管，它可以轻松、准确的完成小微量液体的移取，具有易于操作、成本低廉、不需其它任何辅助设备和提高工作效率的特点，特别是在生物实验中可以避免产生交叉污染的可能。 In view of the above-mentioned deficiencies existing in the prior art, the technical problem to be solved by the utility model is to provide a quantitative pipette, which can easily and accurately complete the pipetting of small and trace liquids, and is easy to operate, low in cost, and not easy to use. Need any other auxiliary equipment and features to improve work efficiency, especially in biological experiments to avoid the possibility of cross-contamination.
为了解决上述技术问题，本实用新型解决技术问题的方案是：本实用新型定量移液管，包括气囊、导气管、储液囊、定量毛细管、所述气囊和导气管和储液囊为透明高分子材料制成，内孔相通，所述定量毛细管为透明高分子材料或玻璃材料制成，其上端位于储液 囊的上部接近导气管并保留一定的距离，定量毛细管的内径和长度根据所需移液的容量进行选定。 In order to solve the above-mentioned technical problems, the solution of the utility model to solve the technical problems is: the quantitative pipette of the present utility model includes an air bag, an air guide tube, a liquid storage bag, a quantitative capillary, and the air bag, the air guide tube and the liquid storage bag are transparent high The quantitative capillary is made of transparent polymer material or glass material, and its upper end is located on the upper part of the liquid storage bag close to the airway and keeps a certain distance. The inner diameter and length of the quantitative capillary are determined according to the needs. The pipetting volume is selected.
采用上述方案，使用时轻捏气囊(1)，将定量毛细管(4)的下端浸入被吸的液体中，轻轻松开气囊(1)，液体就会被吸入定量毛细管(4)，当其吸满时，多余的液体就会从定量毛细管(4)顶端溢出并流入到储液囊(3)中，当吸液停止后定量毛细管(4)中充满被吸液体，其容量为预先设定好的容量，储液囊(3)中留有部分多余液体，此时再轻捏气囊(1)就可以将毛细管中的液体全部滴出，从而轻松、准确的完成小微量液体的定量移取。另一方面，此方案的制作成本很小，便于推广应用，大大提高使用过程的效率和方便性。 Using the above scheme, lightly pinch the airbag (1) during use, immerse the lower end of the quantitative capillary (4) in the liquid to be sucked, and gently open the airbag (1), the liquid will be sucked into the quantitative capillary (4). When it is full, excess liquid will overflow from the top of the quantitative capillary (4) and flow into the liquid storage bag (3). capacity, there is some excess liquid in the liquid storage bag (3), and at this time, lightly squeeze the air bag (1) to drip out all the liquid in the capillary, thereby easily and accurately completing the quantitative transfer of small and trace liquids. On the other hand, the production cost of this solution is very small, which is convenient for popularization and application, and greatly improves the efficiency and convenience of the use process.
定量毛细管内腔的横切面积与长度的积为其的容积，适当选取定量毛细管的内径和长度，可以制成各种容量规格的定量移液管。如50ul、100ul、150ul、200ul、500ul、1000ul等。 The product of the cross-sectional area and length of the quantitative capillary lumen is its volume, and the inner diameter and length of the quantitative capillary can be properly selected to make quantitative pipettes of various capacity specifications. Such as 50ul, 100ul, 150ul, 200ul, 500ul, 1000ul, etc.
所述定量毛细管的外壁与储液囊下端的内壁用胶粘接固定在一起。 The outer wall of the quantitative capillary and the inner wall at the lower end of the liquid storage bag are glued and fixed together.
所述气囊为扁平状、便于操作于用手挤捏。 The airbag is flat and easy to operate and squeeze by hand.
所述气囊为椭球状、便于操作于用手挤捏。 The air bag is in the shape of an ellipsoid, which is convenient to operate and squeeze by hand.
所述定量毛细管为玻璃制成。 The quantitative capillary is made of glass.
所述定量毛细管为透明高分子材料制成。 The quantitative capillary is made of transparent polymer material.
所述定量毛细管一端为椎形。 One end of the quantitative capillary is tapered.
所述定量毛细管两端椎形中间圆柱形。 The two ends of the quantitative capillary are tapered and the middle is cylindrical.
所述的储液囊为两端椎形中间圆柱形。 The liquid storage bag is cylindrical at the middle and conical at both ends.
所述的储液囊为椭球形。 The liquid storage bag is ellipsoidal.
附图说明： Description of drawings:
下面结合附图和具体实施方式对本实用新型定量移液管进一步详细说明， The quantitative pipette of the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments,
图1是本实用新型定量移液管实施方式的结构原理示意图。 Fig. 1 is a schematic diagram of the structural principle of the embodiment of the quantitative pipette of the present invention.
具体实施方式： Detailed ways:
图1中，定量移液管，包括气囊(1)、导气管(2)、储液囊(3)、定量毛细管(4)、所述气囊(1)和导气管(2)和储液囊(3)为透明高分子材料制成，内孔相通，所述定量毛细管(4)为透明高分子材料或玻璃材料制成，其上端位于储液囊的上部接近导气管(2)并保留一定的距离，定量毛细管(4)的内径和长度根据所需吸液的容量进行选定。使用时轻捏气囊(1)，将定量毛细管(4)的下端浸入被吸的液体中，轻轻松开气囊(1)，液体就会被吸入定量毛细管(4)，当其吸满时，多余的液体就会从定量毛细管(4)顶端溢出并流入到储液囊(3)中，当吸液停止后定量毛细管(4)中充满被吸液体，其容量为预先设定好的容量，储液囊(3)中留有部分多余液体，此时再轻捏气囊(1)就可以将毛细管中的液体全部滴出，从而轻松、准确的完成微量、定量液体的移取。气囊(1)为扁平状设计，便于操作时用手指挤捏和固定。储液囊(3)为两端椎形中间圆柱形设计，这样可使使定量毛细管(4)的上端处于储液囊的中央，不会接触到储液囊的壁，使吸液时多余的液体顺利的流入到储液囊中。 In Fig. 1, the quantitative pipette comprises an air bag (1), an air guide tube (2), a liquid storage bag (3), a quantitative capillary (4), the air bag (1), an air guide tube (2) and a liquid storage bag (3) is made of transparent macromolecular material, and inner hole communicates with each other, and described quantitative capillary (4) is made of transparent macromolecular material or glass material, and its upper end is positioned at the upper part of liquid reservoir close to airway tube (2) and retains certain The distance, the inner diameter and the length of quantitative capillary (4) are selected according to the capacity of required suction liquid. When using, gently pinch the airbag (1), immerse the lower end of the dosing capillary (4) into the liquid to be sucked, and gently release the airbag (1), the liquid will be sucked into the dosing capillary (4). The liquid will overflow from the top of the quantitative capillary (4) and flow into the liquid storage bag (3). When the suction stops, the quantitative capillary (4) is filled with the absorbed liquid, and its capacity is the preset capacity. There is some excess liquid in the liquid sac (3), and at this time, lightly pinching the air sac (1) can drip out all the liquid in the capillary, thereby easily and accurately completing the pipetting of micro-quantity and quantitative liquid. The air bag (1) is designed in a flat shape, which is easy to pinch and fix with fingers during operation. The liquid storage bag (3) is designed to be cylindrical in the middle of conical shape at both ends, so that the upper end of the quantitative capillary (4) can be placed in the center of the liquid storage bag, and will not touch the wall of the liquid storage bag, so that unnecessary Fluid flows smoothly into the reservoir.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835973.2U CN204522997U (en) | 2014-12-23 | 2014-12-23 | Quantitative pipette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835973.2U CN204522997U (en) | 2014-12-23 | 2014-12-23 | Quantitative pipette |
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|---|---|
| CN204522997U true CN204522997U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420835973.2U Expired - Lifetime CN204522997U (en) | 2014-12-23 | 2014-12-23 | Quantitative pipette |
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| CN (1) | CN204522997U (en) |
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 |
| CN105784416A (en) * | 2016-04-26 | 2016-07-20 | 德莫德（苏州）机械科技有限公司 | Collector with micro quantitative sampling and sample adding function |
| CN108097341A (en) * | 2018-01-08 | 2018-06-01 | 江苏师范大学 | A kind of automatic ration gradient sample adding device |
| CN108273577A (en) * | 2018-01-08 | 2018-07-13 | 江苏师范大学 | A kind of single gradient multichannel pipettor |
| CN109046487A (en) * | 2018-06-22 | 2018-12-21 | 北京市医疗器械检验所 | It is a kind of for measuring the quantitative liquid taking device of fluid density |
| CN109791095A (en) * | 2016-09-30 | 2019-05-21 | 富士胶片株式会社 | Nozzle and dispensing container |
| CN111957365A (en) * | 2020-08-22 | 2020-11-20 | 江苏科华医疗器械科技有限公司 | Multi-range quantitative pipette and pipetting method thereof |
| CN115708679A (en) * | 2022-11-25 | 2023-02-24 | 江苏科华医疗器械科技有限公司 | Blood sampling dilution pipette with built-in liquid discharge structure and liquid discharge method thereof |
-
2014
- 2014-12-23 CN CN201420835973.2U patent/CN204522997U/en not_active Expired - Lifetime
Cited By (11)
| 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 |
| CN105784416A (en) * | 2016-04-26 | 2016-07-20 | 德莫德（苏州）机械科技有限公司 | Collector with micro quantitative sampling and sample adding function |
| CN109791095A (en) * | 2016-09-30 | 2019-05-21 | 富士胶片株式会社 | Nozzle and dispensing container |
| CN109791095B (en) * | 2016-09-30 | 2021-07-30 | 富士胶片株式会社 | Nozzle and dispensing container |
| US11318484B2 (en) | 2016-09-30 | 2022-05-03 | Fujifilm Corporation | Nozzle and dispensing container |
| CN108097341A (en) * | 2018-01-08 | 2018-06-01 | 江苏师范大学 | A kind of automatic ration gradient sample adding device |
| CN108273577A (en) * | 2018-01-08 | 2018-07-13 | 江苏师范大学 | A kind of single gradient multichannel pipettor |
| CN109046487A (en) * | 2018-06-22 | 2018-12-21 | 北京市医疗器械检验所 | It is a kind of for measuring the quantitative liquid taking device of fluid density |
| CN111957365A (en) * | 2020-08-22 | 2020-11-20 | 江苏科华医疗器械科技有限公司 | Multi-range quantitative pipette and pipetting method thereof |
| CN115708679A (en) * | 2022-11-25 | 2023-02-24 | 江苏科华医疗器械科技有限公司 | Blood sampling dilution pipette with built-in liquid discharge structure and liquid discharge method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160623 Address after: 224217 west suburb industrial park, five fierce Town, Jiangsu, Dongtai Patentee after: JIANGSU KEHUA MEDICAL INSTRUMENT TECHNOLOGY Co.,Ltd. Address before: 224217 KELONG medical apparatus Co., Ltd., No. 8, No. five, No. five, Zhen Dong Road, Dongtai, Yancheng City, Jiangsu Patentee before: Ma Ronghua |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150805 |