CN104280270A - Liquid sampling device - Google Patents

Liquid sampling device Download PDF

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Publication number
CN104280270A
CN104280270A CN201310287487.1A CN201310287487A CN104280270A CN 104280270 A CN104280270 A CN 104280270A CN 201310287487 A CN201310287487 A CN 201310287487A CN 104280270 A CN104280270 A CN 104280270A
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China
Prior art keywords
liquid
pipe
trap
section
storage cylinder
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CN201310287487.1A
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Chinese (zh)
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CN104280270B (en
Inventor
龙晖
周楠
罗宏
王继华
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Guangzhou Wondfo Biotech Co Ltd
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Guangzhou Wondfo Biotech Co Ltd
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Priority to CN201310287487.1A priority Critical patent/CN104280270B/en
Publication of CN104280270A publication Critical patent/CN104280270A/en
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Abstract

The invention discloses a liquid sampling device. According to the liquid sampling device, a siphon is used for sucking a liquid sample by siphoning effect to carry out sampling; the liquid sample does not drop off even if a pipetting tool is not arranged, so that blood sampling and pipetting functions can be realized and can be finished by one step, and furthermore, troubles that sampling and pipetting are carried out in different steps in an experimentation process are reduced; when the whole siphon is filled with the liquid, the pipe diameter of a front-section pipe of a blocking channel is less than the pipe diameter of the siphon so as to delay the siphoning effect of the siphon; meanwhile, the pipe diameter of a rear-section pipe of the blocking channel is enlarged suddenly and is greater than the pipe diameter of the front-section pipe and the siphon, so as to stop the siphoning effect of the siphon; and the siphoning effect is stopped at the position of the rear-section pipe of the blocking channel so as to accurately control the sample amount of the sucked liquid.

Description

A kind of Liquid sampler
Technical field
The present invention relates to medical instruments field, exactly refer to a kind of Liquid sampler.
Background technology
At present, existing Liquid sampler, by connecting liquid-transfering gun, can only realize the sampling to sample liquid, independently can not sample or be moved to by sample liquid other place.If use this Liquid sampler blood count, generally need first adopt blood with hemostix, then Liquid sampler be connected to liquid-transfering gun etc. and move on liquid instrument, then Liquid sampler is deep into adopted blood hemostix in carry out getting liquid and move liquid.Adopt in this way, get blood from taking a blood sample to and two steps need be divided to carry out, needed for the instrument used comprise hemostix, Liquid sampler, liquid-transfering gun, more complicated.And blood sampling has potential superinfection risk for medical personnel, step is more, and the instrument that needs are used is more, and the chance of infection is larger.In addition, if use existing Liquid sampler to take a blood sample accurately can not control blood sampling volume, the waste of sample is easily caused.
Summary of the invention
For above-mentioned defect, the technical matters that the present invention solves is to provide a kind of Liquid sampler, this sampling thief can realize the function of taking a blood sample and moving liquid simultaneously, settle at one go, what to decrease in experimentation sampling and move that liquid substep carries out is loaded down with trivial details, can control the liquid sample amount needed simultaneously more accurately.
In order to solve above technical matters, Liquid sampler provided by the invention, comprises sampling thief main body, described sampling thief main body is provided with U trap, stops passage and liquid storage cylinder, wherein:
Described U trap is communicated with described liquid storage cylinder by described obstruction passage;
Described U trap is arranged on the bottom of described sampling thief main body, described U trap siphon liquid sample;
Described obstruction passage comprises latter a section of managing the last period be connected with described U trap and being connected with described liquid storage cylinder and manages, described the last period, pipe was less than described siphonal caliber, described rear one section of pipe is connected with pipe described the last period, described rear one section of pipe amplifies, until consistent with the diameter bottom described liquid storage cylinder gradually compared to the caliber of pipe described the last period.
Preferably, described the last period, pipe was cylindrical duct structure, and described the last period, the caliber of pipe was the 1/2-1/3 of described U trap caliber.
Preferably, described the last period, pipe was conical tube structure, and described the last period, the minimum pipe of pipe was the 1/2-1/3 of described U trap caliber.
Preferably, described rear one section of pipe is inverted cone tubular construction, and the lowest calibre of described rear one section of pipe is 0.7mm-1.0mm, and maximum caliber is 2.5mm-3.0mm, and the height of described rear one section of pipe is 0.8mm-1.2mm.
Preferably, described rear one section of pipe is inverted arc shape conical tube structure, and the lowest calibre of described rear one section of pipe is 0.7mm-1.0mm, and maximum caliber is 2.5mm-3.0mm, and the height of described rear one section of pipe is 0.8mm-1.2mm.
Preferably, described liquid storage cylinder is inverted cone tubular construction, and described coupling sleeve is inverted cone barrel structure, and the tapering of described liquid storage cylinder is consistent with the tapering of described coupling sleeve.
Preferably, described liquid storage cylinder is cylindrical duct structure, and described coupling sleeve is inverted cone barrel structure, and the top of described liquid storage cylinder is connected with osculum caliber one end of described coupling sleeve.
Preferably, described sampling thief main body is also provided with collar stop in periphery.
Preferably, described collar stop is arranged on the position apart from described sampling thief main body bottom 10mm-50mm.
Preferably, described U trap is made up of acrylonitritrile-styrene resin material.
Preferably, described sampling thief main body also comprise for the coupling sleeve moving liquid instrument and be connected, the top of described liquid storage cylinder is communicated with described coupling sleeve.
Preferably, described sampling thief main body also comprises with suction pipe bubble, and the top of described liquid storage cylinder is steeped with described suction pipe and is communicated with.
Compared with prior art, Liquid sampler provided by the invention, U trap is sampled by syphonic effect imbitition sample, also can not drip even without moving liquid instrument liquid sample, the function of taking a blood sample and moving liquid can be realized, settle at one go, what to decrease in experimentation sampling and move that liquid substep carries out is loaded down with trivial details; After liquid is filled with whole U trap, due to stop passage the last period pipe caliber less than siphonal caliber, can play and delay siphonal syphonic effect, the caliber simultaneously stopping rear one section of pipe of passage amplifies suddenly, than the last period pipe and siphonal caliber all large, can stop siphonal syphonic effect, syphonic effect stops at the position of the rear one section of pipe stopping passage, thus realizes the liquid sample amount controlling needs absorption more accurately.
Accompanying drawing explanation
Fig. 1 is the structural representation of Liquid sampler in the embodiment of the present invention;
Fig. 2 is the internal cross section structural representation of Liquid sampler in the embodiment of the present invention;
Fig. 3 is the amplification assumption diagram stopping passage in embodiment 1 Liquid sampler;
Fig. 4 is the amplification assumption diagram stopping passage in embodiment 2 Liquid sampler;
Fig. 5 is the structural representation of Liquid sampler in the embodiment of the present invention 3.
Embodiment
In order to those skilled in the art can understand technical scheme provided by the present invention better, set forth below in conjunction with specific embodiment.
Embodiment 1
Refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the structural representation of Liquid sampler in the embodiment of the present invention; Fig. 2 is the internal cross section structural representation of Liquid sampler in the embodiment of the present invention; Fig. 3 is the amplification assumption diagram stopping passage in embodiment 1 Liquid sampler.
The Liquid sampler that the embodiment of the present invention provides, comprises sampling thief main body 1, sampling thief main body 1 is provided with U trap 2, stops passage 3, liquid storage cylinder 4 and coupling sleeve 5, wherein:
U trap 2 is communicated with liquid storage cylinder 4 by stopping passage 3;
U trap 2 is arranged on the bottom of sampling thief main body 1, U trap 2 siphon liquid sample;
Stop passage 3 and comprise the pipe 31 and rear one section of pipe 32 of being connected with liquid storage cylinder 4 the last period be connected with U trap 2, the last period, pipe 31 was less than the caliber of U trap 1, rear one section of pipe 32 31 to be connected with pipe the last period, rear one section of pipe 32 amplifies, until consistent with the diameter bottom liquid storage cylinder 4 gradually compared to the caliber of pipe 31 the last period;
The top of liquid storage cylinder 4 is communicated with coupling sleeve 5;
Coupling sleeve 5, for move liquid instrument and be connected.
U trap 2 is sampled by syphonic effect imbitition sample, also can not drip even without moving liquid instrument liquid sample, can realize taking a blood sample and move the function of liquid, settles at one go, and what decrease sampling in experimentation and move that liquid substep carries out is loaded down with trivial details.
Pipe the last period stopping passage 3 31 is cylindrical duct structure, and the last period, the caliber of pipe 31 was 1/2 of U trap 2 calibers.The rear one section of pipe 32 stopping passage 3 is inverted cone tubular construction, and the lowest calibre of rear one section of pipe 32 is 0.7mm-1.0mm, and maximum caliber is 2.5mm-3.0mm, and the height of rear one section of pipe 32 is 0.8mm-1.2mm.After liquid is filled with whole U trap 2, due to stop passage 3 the last period pipe 31 caliber less than the caliber of U trap 2, the syphonic effect delaying U trap 2 can be played, the caliber simultaneously stopping rear one section of pipe 32 of passage 3 amplifies suddenly, than the last period pipe 31 and the caliber of U trap 2 all large, can stop the syphonic effect of U trap 2, syphonic effect stops at the position of the rear one section of pipe 32 stopping passage 3, thus realizes the liquid sample amount controlling needs absorption more accurately.
Liquid storage cylinder 4 is inverted cone tubular construction, and coupling sleeve 5 is inverted cone barrel structure, and the tapering of liquid storage cylinder 4 is consistent with the tapering of coupling sleeve 5, and being convenient to, when moving liquid tool cover and being taken on coupling sleeve 5, can have certain engaging space.
Sampling thief main body 1 is also provided with collar stop 6 in periphery, and collar stop 6 is arranged on the position of distance samples device main body 1 bottom 15mm.Liquid sampler of the present invention can coordinate separately liquid-transfering gun to use, also can use in the full-automatic fluorescent quantitation detection system of Guangzhou Wondfo Biotech. Co., Ltd.'s independent research, when the liquid mechanical arm that moves in this system is connected with Liquid sampler by moving liquid sleeve, and when the liquid sample that siphon comes being joined in the damping fluid cup in system, when Liquid sampler enters in damping fluid cup, diameter due to collar stop 66 is greater than damping fluid rim of a cup diameter, Liquid sampler is prevented to continue to go deep into damping fluid cup, thus avoid sampling thief situation about puncturing at the bottom of damping fluid cup to be occurred, protect damping fluid cup from destruction.Simultaneously collar stop 6 also can preventing liquid from spilling with during liquid blending in damping fluid cup.Wherein, main attention, is positioned at block 6 is less than damping fluid cup height with the length of lower part in sampling thief main body 1.
U trap 2 is made up of acrylonitritrile-styrene resin material.
The Liquid sampler that the embodiment of the present invention provides has sampling, moves liquid and mixing function, wherein:
Sampling operation: the U trap 2 of sampling thief main body 1 is aimed at sample objects and position, Liquid sampler will be sampled to sample objects, draw sample liquid in U trap 2, after sample liquid is full of whole U trap 2, due to the inertia of siphon, liquid sample can continue to be full of the pipe 31 the last period stopping passage 3.At this moment, pipe the last period stopping passage 3 31 plays the effect delaying siphon.When liquid sample enter into stop rear one section of pipe 32 of passage 3 time, because the caliber of the rear one section of pipe 32 stopping passage 3 amplifies suddenly, than the last period pipe 31 and the caliber of U trap 2 all large, can stop siphonal syphonic effect, syphonic effect stops.By this structure, stopping passage 3 can achieve effective control siphon amount, and more accurate control needs the function of the liquid sample amount drawn;
Move liquid and mixing operation: the complete sampling thief of sampling and liquid-transfering gun or other are moved liquid instrument and coupled together by the coupling sleeve 5 of sampling thief body top, Liquid sampler is moved to damping fluid cup or other need drip sample liquid container on, by liquid-transfering gun, liquid sample is blown and beaten in specified containers, as in damping fluid cup; The function of liquid imbibition is told with the use of liquid-transfering gun, sample liquid can be blown and beaten into specified containers by the Liquid sampler of the present embodiment, and mix with the liquid in container, again by the liquid storage cylinder of mixing material together inspiration Liquid sampler, and then mixing material is spued, repeatedly several times, can realize mixing mixing material, told in the perseveration of liquid in imbibition by the sample liquid remained in U trap 2 moves on in specified containers simultaneously, avoid due to liquid residue cause join sample liquid in container with sample this amount of liquid and there is relatively large deviation.
Embodiment 2
Refer to Fig. 1, Fig. 2 and Fig. 4, Fig. 1 is the structural representation of Liquid sampler in the embodiment of the present invention; Fig. 2 is the internal cross section structural representation of Liquid sampler in the embodiment of the present invention; Fig. 4 is the amplification assumption diagram stopping passage in embodiment 2 Liquid sampler.
The Liquid sampler that the embodiment of the present invention provides, comprises sampling thief main body 1, sampling thief main body 1 is provided with U trap 2, stops passage 3, liquid storage cylinder 4 and coupling sleeve 5, wherein:
U trap 2 is communicated with liquid storage cylinder 4 by stopping passage 3;
U trap 2 is arranged on the bottom of sampling thief main body 1, U trap 2 siphon liquid sample;
Stop passage 3 and comprise the pipe 31 and rear one section of pipe 32 of being connected with liquid storage cylinder 4 the last period be connected with U trap 2, the last period, pipe 31 was less than the caliber of U trap 1, rear one section of pipe 32 31 to be connected with pipe the last period, rear one section of pipe 32 amplifies, until consistent with the diameter bottom liquid storage cylinder 4 gradually compared to the caliber of pipe 31 the last period;
The top of liquid storage cylinder 4 is communicated with coupling sleeve 5;
Coupling sleeve 5, for move liquid instrument and be connected.
The last period, pipe was for cylindrical duct structure, and described the last period, the caliber of pipe was the 1/2-1/3 of described U trap caliber; Rear one section of pipe 32 is inverted arc shape conical tube structure, and the lowest calibre of rear one section of pipe 32 is 0.7mm-1.0mm, and maximum caliber is 2.5mm-3.0mm, and the height of rear one section of pipe 32 is 0.8mm-1.2mm.
After liquid is filled with whole U trap 2, due to stop passage 3 the last period pipe 31 caliber less than the caliber of U trap 2, the syphonic effect delaying U trap 2 can be played, the caliber simultaneously stopping rear one section of pipe 32 of passage 3 amplifies suddenly, than the last period pipe 31 and the caliber of U trap 2 all large, can stop the syphonic effect of U trap 2, syphonic effect stops at the position of the rear one section of pipe 32 stopping passage 3, thus realizes the liquid sample amount controlling needs absorption more accurately.
Sampling thief main body 1 is also provided with collar stop 6 in periphery, and collar stop 6 is arranged on the position of distance samples device main body 1 bottom 15mm.
U trap 2 is made up of acrylonitritrile-styrene resin material.
The Liquid sampler that the embodiment of the present invention provides has sampling, moves liquid and mixing function, wherein:
Sampling operation: the U trap 2 of sampling thief main body 1 is aimed at sample objects and position, Liquid sampler will be sampled to sample objects, draw sample liquid in U trap 2, after the sample liquid extracted is filled with whole U trap 2, due to the inertia of siphon, liquid sample can continue to be full of the pipe 31 the last period stopping passage 3, but pipe the last period stopping passage 3 31 has served the effect delaying siphon; When liquid sample enter into stop rear one section of pipe 32 of passage 3 time, because the caliber of the rear one section of pipe 32 stopping passage 3 amplifies suddenly, than the last period pipe 31 and the caliber of U trap 2 all large, can stop siphonal syphonic effect, syphonic effect stops.By this structure function, stop passage 3 and can effectively control siphon amount, more accurate control needs the liquid sample amount drawn;
Move liquid and mixing operation: the complete sampling thief of sampling and liquid-transfering gun or other are moved liquid instrument and coupled together by the coupling sleeve 5 of sampling thief body top, Liquid sampler is moved to damping fluid cup or other need drip sample liquid container on, by liquid-transfering gun, liquid sample is blown and beaten in specified containers, as in damping fluid cup, the function of liquid imbibition is told with the use of liquid-transfering gun, sample liquid can blown and beaten in specified containers by the Liquid sampler of the present embodiment, and after being mixed with the liquid in container, again by the liquid storage cylinder of mixing material together inspiration Liquid sampler, and then mixing material is spued, repeatedly several times, can realize mixing mixing material, told in the perseveration of liquid in imbibition by the sample liquid remained in U trap 2 moves on in specified containers simultaneously, avoid due to liquid residue cause join sample liquid in container with sample this amount of liquid and there is relatively large deviation.
Embodiment 3
Refer to Fig. 5, this figure is the structural representation of Liquid sampler in the embodiment of the present invention 3.
The Liquid sampler that the embodiment of the present invention provides, comprises sampling thief main body 1, sampling thief main body 1 is provided with U trap 2, stops passage 3, liquid storage cylinder 4 and suction pipe bubble 7, wherein:
U trap 2 is communicated with liquid storage cylinder 4 by stopping passage 3;
U trap 2 is arranged on the bottom of sampling thief main body 1, U trap 2 siphon liquid sample;
Top and the suction pipe of liquid storage cylinder 4 steep 7 and are communicated with.
The structure of the obstruction passage of the Liquid sampler of the present embodiment is identical with embodiment 1 or embodiment 2.
Liquid sampler moves liquid by the bubble on pressing suction pipe bubble 7 to the liquid implementation that siphon comes, and can be controlled the amount of liquid extracted by the volume markings indicated on the tube wall of liquid storage cylinder 4.
Above-mentioned the disclosed embodiments illustrate and professional and technical personnel in the field can be made effectively to realize or use the present invention.General Principle as defined herein is when not departing from the spirit or scope of the present invention, carries out application in other embodiments and realizes.Any to the distortion done by above-described embodiment or amendment all in protection scope of the present invention.Therefore, the present invention will be not limited in embodiment illustrated herein, and every behavior meeting principle disclosed herein and novel features is all in protection scope of the present invention.

Claims (12)

1. a Liquid sampler, is characterized in that, comprises sampling thief main body, described sampling thief main body is provided with U trap, stops passage and liquid storage cylinder, wherein:
Described U trap is communicated with described liquid storage cylinder by described obstruction passage;
Described U trap is arranged on the bottom of described sampling thief main body, described U trap siphon liquid sample;
Described obstruction passage comprises latter a section of managing the last period be connected with described U trap and being connected with described liquid storage cylinder and manages, described the last period, pipe was less than described siphonal caliber, described rear one section of pipe is connected with pipe described the last period, described rear one section of pipe amplifies, until consistent with the diameter bottom described liquid storage cylinder gradually compared to the caliber of pipe described the last period.
2. Liquid sampler according to claim 1, is characterized in that, described the last period, pipe was cylindrical duct structure, and described the last period, the caliber of pipe was the 1/2-1/3 of described U trap caliber.
3. Liquid sampler according to claim 1, is characterized in that, described the last period, pipe was conical tube structure, and described the last period, the minimum pipe of pipe was the 1/2-1/3 of described U trap caliber.
4. the Liquid sampler according to any one of Claims 2 or 3, it is characterized in that, described rear one section of pipe is inverted cone tubular construction, and the lowest calibre of described rear one section of pipe is 0.7mm-1.0mm, maximum caliber is 2.5mm-3.0mm, and the height of described rear one section of pipe is 0.8mm-1.2mm.
5. the Liquid sampler according to any one of Claims 2 or 3, it is characterized in that, described rear one section of pipe is inverted arc shape conical tube structure, and the lowest calibre of described rear one section of pipe is 0.7mm-1.0mm, maximum caliber is 2.5mm-3.0mm, and the height of described rear one section of pipe is 0.8mm-1.2mm.
6. Liquid sampler according to claim 1, is characterized in that, described liquid storage cylinder is inverted cone tubular construction, and described coupling sleeve is inverted cone barrel structure, and the tapering of described liquid storage cylinder is consistent with the tapering of described coupling sleeve.
7. Liquid sampler according to claim 1, is characterized in that, described liquid storage cylinder is cylindrical duct structure, and described coupling sleeve is inverted cone barrel structure, the top of described liquid storage cylinder and described coupling sleeve osculum caliber one end be connected.
8. Liquid sampler according to claim 1, is characterized in that, described sampling thief main body is also provided with collar stop in periphery.
9. Liquid sampler according to claim 8, is characterized in that, described collar stop is arranged on the position apart from described sampling thief main body bottom 10mm-50mm.
10. Liquid sampler according to claim 1, is characterized in that, described U trap is made up of acrylonitritrile-styrene resin material.
11. Liquid samplers according to claim 1, is characterized in that, described sampling thief main body also comprise for the coupling sleeve moving liquid instrument and be connected, the top of described liquid storage cylinder is communicated with described coupling sleeve.
12. Liquid samplers according to claim 1, is characterized in that, described sampling thief main body also comprises with suction pipe bubble, and the top of described liquid storage cylinder is steeped with described suction pipe and is communicated with.
CN201310287487.1A 2013-07-09 2013-07-09 A kind of Liquid sampler Active CN104280270B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855867A (en) * 1972-08-21 1974-12-24 Oxford Lab Liquid transfer pipetting device
US4117728A (en) * 1977-12-22 1978-10-03 Miles Laboratories, Inc. Pipette
US5851491A (en) * 1997-06-13 1998-12-22 Labcon, North America Pipette tip and filter for accurate sampling and prevention of contamination
CN2469932Y (en) * 2000-07-24 2002-01-09 烟台凯瑞医用设备开发有限公司 Medical low-flow-resistance blood-taking tubelihe
US20020037239A1 (en) * 2000-09-22 2002-03-28 Fuji Photo Film Co., Ltd. Quantitative suction tip and quantitative suction apparatus
JP2009109459A (en) * 2007-11-01 2009-05-21 Konica Minolta Medical & Graphic Inc Pipette chip, inspection system, pipette, and filling apparatus
CN201441919U (en) * 2009-08-26 2010-04-28 孙俊红 burette sampler
CN203432820U (en) * 2013-07-09 2014-02-12 广州万孚生物技术股份有限公司 Liquid sampling device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855867A (en) * 1972-08-21 1974-12-24 Oxford Lab Liquid transfer pipetting device
US4117728A (en) * 1977-12-22 1978-10-03 Miles Laboratories, Inc. Pipette
US5851491A (en) * 1997-06-13 1998-12-22 Labcon, North America Pipette tip and filter for accurate sampling and prevention of contamination
CN2469932Y (en) * 2000-07-24 2002-01-09 烟台凯瑞医用设备开发有限公司 Medical low-flow-resistance blood-taking tubelihe
US20020037239A1 (en) * 2000-09-22 2002-03-28 Fuji Photo Film Co., Ltd. Quantitative suction tip and quantitative suction apparatus
JP2009109459A (en) * 2007-11-01 2009-05-21 Konica Minolta Medical & Graphic Inc Pipette chip, inspection system, pipette, and filling apparatus
CN201441919U (en) * 2009-08-26 2010-04-28 孙俊红 burette sampler
CN203432820U (en) * 2013-07-09 2014-02-12 广州万孚生物技术股份有限公司 Liquid sampling device

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