CN104826679A - Pipette tip and pipette therewith - Google Patents
Pipette tip and pipette therewith Download PDFInfo
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- CN104826679A CN104826679A CN201410660115.3A CN201410660115A CN104826679A CN 104826679 A CN104826679 A CN 104826679A CN 201410660115 A CN201410660115 A CN 201410660115A CN 104826679 A CN104826679 A CN 104826679A
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Abstract
The invention discloses a pipette tip and a pipette therewith. The pipette tip includes a quantitative liquid storage tube (2) and an overflow liquid storage tube (3). The upper part of the quantitative liquid storage tube (2) is inserted into an inner chamber of the overflow liquid storage tube (3). A liquid discharge outlet (4) is formed at the top end of the quantitative liquid storage tube (2). The liquid discharge outlet (4) is positioned between the inner chamber bottom surface and the top end of the overflow liquid storage tube (3). In the pipette equipped with the pipette tip, a limiting short rod (7) is transversally combined to one side of the middle-upper part of a piston rod (8). The quantitative liquid storage tube (2) employs a linear sliding-type adjustment device, by which an object of adjusting the pipetting amount is achieved by limiting and blocking an upward-move distance of the limiting short rod (7). In the invention, accurate liquid suction is achieved by fully sucking liquid through the quantitative liquid storage tube (2) during pipetting. In addition, the pipette is free of high-precision and high-cost processing on the parts, is simple in structure and is low in cost.
Description
Technical field
The present invention relates to precision and move dosimeter field, particularly relate to a kind of liquid-transfering sucker and use its pipettor.
Technical background
The pipettor external member generally used at present, primarily of pipettor and liquid-transfering sucker composition, liquid-transfering sucker is single cavity liquid reservoir; Pipettor adopts air displacement principle, has the screw rod of hyperfine screw thread and the maximum displacement of control piston, and then control liquid absorption by rotating.Adopt above-mentioned external member to carry out imbibition and can there is following problem: 1, liquid absorption is controlled by described pipettor, in pipettor sterilizing or after using a period of time, easily because there is " recessiveness " fault, cause operating personnel not easily to discover and make actual liquid absorption inaccurate, and needing adjustment often, complex operation is time-consuming; 2, will improve and move liquid precision, higher to the operation requirements of operating personnel, the factor such as the degree of depth and pipettor angle of inclination easily stretching into below liquid level by rate of liquid aspiration, suction nozzle affects actual liquid absorption; 3, because suction nozzle cover does not closely leak gas and affects actual liquid absorption, and not easily can be therefore easily perceived by humans; 4, when carrying out such as analysis classes to the experiment that precision requirement is high, carry out in equal-volume imbibition operation at the liquid different to density, actual liquid absorption can be subject to the impact of the factor of density own; 5, for improving precision, such pipettor needs the optimal design of each parts being carried out to high cost, causes pipettor cost high.
Summary of the invention
The present invention is directed to above problem, provide a kind of structure simple, move liquid precision liquid-transfering sucker higher and with low cost and use its pipettor.When using of the present invention, can not affect because of " recessiveness " fault of pipettor appearance and moving liquid precision, and not needing adjustment also can ensure to move liquid precision after long term sterilizing or use always; Almost without any requirement to the operation of operating personnel, rate of liquid aspiration can not be subject to, the degree of depth that suction nozzle stretches into below liquid level, the factor such as pipettor angle of inclination and each fluid density affect imbibition precision; Under guarantee imbibition high accurancy and precision, do not need the optimal design of each parts of pipettor being carried out to high cost; Meanwhile, when this pipettor is as Multi-channel liquid transfer device, the internal structure of its underpart cavity is simple, and can ensure that each duct liquid absorption not there are differences, with low cost.
For reaching above-mentioned target, the present invention adopts following technical scheme:
A kind of liquid-transfering sucker comprises a certain amount of liquid storage tube and a spillage storage tube, and described quantitative liquid storage tube is distributed in below spillage storage tube; Described quantitative liquid storage tube lower end is that suction nozzle is sharp-tongued, and its upper end offers liquid outlet; Described quantitative liquid storage tube top is inserted in described spillage storage tube inner chamber, and closely engages with spillage storage tube; The position of the liquid outlet of described quantitative liquid storage tube upper end is between the inner chamber bottom surface and its top of described spillage storage tube; Described quantitative liquid storage tube inserts the part in described spillage storage tube inner chamber, and the gap length between its tube wall and spillage storage tube inwall is around enough to make liquid flow down described spillage storage tube intracavity bottom smoothly from liquid outlet.
Described quantitative liquid storage tube middle and upper part is also provided with a reservoir bubble, and described reservoir bubble is distributed in the below of quantitative liquid storage tube and spillage storage tube junction.
Use a pipettor for described liquid-transfering sucker, it comprises a piston rod and a certain amount of adjusting device, the side, middle and upper part of described piston rod, and horizontal integration has a restriction quarter butt, this restriction quarter butt synchronizing moving together with piston rod; Described quantitative regulation apparatus is rectilinearly-moved slide type quantitative regulation apparatus, comprises a slip and limits block piece, a block piece extrusion spring, one " convex " font card, card extrusion spring and a pocket set; Described slip limits block piece and is distributed in a housing cavity, and is distributed in described restriction quarter butt upper end, and can move up and down along the direction of motion limiting quarter butt; Described block piece extrusion spring is distributed in described slip and limits block piece upper end, and the moment limits block piece extruding to described slip; Described " convex " font card is corresponding with the draw-in groove of described pocket set; Described " convex " font card and described pocket set, one of them is distributed in described slip and limits on block piece, and another is then corresponding is distributed on pipettor housing; Described card extrusion spring is distributed in described " convex " font card lower end, and the moment extrudes described card, ensure without under pressed by external force, the state making described " convex " font card bottom keep inserting described pocket set draw-in groove and the card outlet duct that the upper end of described " convex " font card is offered from housing expose outside housing; Described " convex " font card controls described slide the fixing of restriction block piece or slip by inserting or deviate from the draw-in groove of described pocket set, limit to make slip the upper end that block piece is limiting quarter butt and limit the maximum displacement regulating described restriction quarter butt, and then realize the coarse adjustment effect to liquid absorption.
Described pipettor is also provided with the containing mark corresponding with described pocket set; Described containing mark is when described pocket set is distributed in described slip restriction block piece, and it is printed on described slip and limits on block piece, when described pocket set is distributed on housing, is then printed on the outer body surface of housing.
When described containing mark is printed on described slip restriction block piece, the housing above it offers scale sight vane, and the distribution of this scale sight vane is described in the left side of card outlet duct.
Described pipettor bottom is also provided with one to move liquid cavity for multichannel, and the inner chamber of this cavity is a cavity.
Beneficial effect of the present invention is: 1, the present invention controls liquid absorption when carrying out imbibition by making the quantitative liquid storage tube of described liquid-transfering sucker be filled liquid, therefore only need carry out accurate processing to described quantitative liquid storage tube, the high accurancy and precision of whole liquid absorption can be ensured; 2, the pipettor in the present invention, does not play accurate quantification control action in imbibition process to liquid absorption, and therefore its each parts do not need high accuracy high cost to process, and make holistic cost cheap; 3, adopt this rectilinearly-moved slide type quantitative regulation apparatus, structure is simple, with low cost; 4, pipettor of the present invention is when as Multi-channel liquid transfer device, the inner chamber of its underpart cavity is a cavity, save array piston group intensive and with high costs, not only cost is low but also when using imbibition of the present invention, the liquid absorption in its each duct can ensure the indifference opposite sex.
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment 1 of liquid-transfering sucker of the present invention;
Fig. 2 is the structural representation of the specific embodiment 2 of liquid-transfering sucker of the present invention;
Fig. 3 is the structural representation of the specific embodiment 3 of liquid-transfering sucker of the present invention;
Fig. 4 is the partial internal structure schematic diagram that cover has the specific embodiment 1 of this pipettor of liquid-transfering sucker of the present invention;
Fig. 5 is that "T"-shaped slip the in the specific embodiment 1 of this pipettor limits the front view of block piece (10);
Fig. 6 is that " convex " shape card (11) in the specific embodiment 1 of this pipettor limits the distribution schematic diagram of block piece (10) with card extrusion spring (18) and "T"-shaped slip;
Fig. 7 is the external structure schematic diagram of the specific embodiment 1 of this pipettor;
Fig. 8 is the partial internal structure schematic diagram that cover has the specific embodiment 2 of this pipettor of liquid-transfering sucker of the present invention;
Fig. 9 limits the parts transversely sectional drawing at block piece (10) place its rectangular-shaped slip in the specific embodiment 2 of this pipettor;
Figure 10 limits the vertical sectional drawing of part at block piece (10) place its rectangular-shaped slip in the specific embodiment 2 of this pipettor;
Figure 11 is the structural representation of the cavity (22) that the specific embodiment 2 of this pipettor adopts;
Figure 12 is the external structure schematic diagram of specific embodiment 2 when using this cavity (22) of this pipettor.
Detailed description of the invention
The specific embodiment 1 of this liquid-transfering sucker
As shown in Figure 1, described liquid-transfering sucker 1 comprises a certain amount of liquid storage tube 2 and a spillage storage tube 3, and described quantitative liquid storage tube 2 is distributed in below spillage storage tube 3; Described quantitative liquid storage tube 2 lower end is that suction nozzle is sharp-tongued, and its top, upper end offers a liquid outlet 4, and this liquid outlet 4 is a thin mouth; Described quantitative liquid storage tube 2 top is inserted the inner chamber of spillage storage tube 3 from described spillage storage tube 3 lower end, and closely engages with spillage storage tube 3, ensures that junction is airtight air tight; The position of the liquid outlet 4 at top, described quantitative liquid storage tube 2 upper end is between the inner chamber bottom surface and its top of described spillage storage tube 3; Described quantitative liquid storage tube 2 inserts the part in described spillage storage tube 3 inner chamber, and the gap length between its tube wall and spillage storage tube 3 inwall is around enough to make liquid flow down described spillage storage tube 3 intracavity bottom smoothly from liquid outlet 4.The quantitative liquid storage tube 2 of this liquid-transfering sucker plays the accurate quantitative effect to moving liquid, and described spillage storage tube 3 only plays the liquid collected and overflow from the liquid outlet 4 of quantitative liquid storage tube 2 and the effect connecting pipettor gun head.Therefore, when adopting this liquid-transfering sucker to carry out moving liquid, amass according to liquid will be moved, select the liquid-transfering sucker with the quantitative liquid storage tube 2 of corresponding volume, need ensure that in operation only described quantitative liquid storage tube 2 inner chamber is filled liquid and can reaches desired and move liquid measure, it moves the processing precision that liquid precision is decided by described quantitative liquid storage tube 2 completely.Higher to the processing precision of described quantitative liquid storage tube 2, it is also corresponding higher that it moves liquid precision.And current existing injection molding technology can ensure above required machining accuracy completely.
The specific embodiment 2 of this liquid-transfering sucker
As shown in Figure 2, the specific embodiment 2 of this liquid-transfering sucker is only with the difference of described specific embodiment 1, and its liquid outlet 4 is arranged on the both sides of described quantitative liquid storage tube 2 upper end, and its top, upper end is closed state.Spillage can be made when imbibition to spray to the inwall of spillage storage tube 3, prevent spillage from may spray in liquid transfer gun head.
The specific embodiment 3 of this liquid-transfering sucker
As shown in Figure 3, the specific embodiment 3 of this liquid-transfering sucker is only with the difference of described specific embodiment 1 or specific embodiment 2, its quantitative liquid storage tube 2 middle and upper part is provided with a reservoir bubble 5 more, and described reservoir bubble 5 is distributed in the below of quantitative liquid storage tube 2 and spillage storage tube 3 junction.To make in a certain size situation of body, to improve the liquid absorption of this liquid-transfering sucker below the quantitative liquid storage tube 2 of guarantee.
Use the specific embodiment 1 of the pipettor of this liquid-transfering sucker
As shown in Figure 4 to 7, a kind of pipettor using described liquid-transfering sucker 1, it comprises a piston rod 8 and a certain amount of adjusting device, on the right side of the middle part of described piston rod 8, horizontal integration has a restriction quarter butt 7, and this restriction quarter butt 7 is distributed in housing cavity 16, and together with piston rod 8 synchronizing moving; Described quantitative regulation apparatus is rectilinearly-moved slide type quantitative regulation apparatus, comprises a "T"-shaped slip and limits block piece 10, block piece extrusion spring 9, " convex " font card 11, card extrusion spring 18 and pocket set 14; Described "T"-shaped slip limits block piece 10 and is distributed in a housing cavity 16; Described "T"-shaped slip limits its cross bar of block piece 10 and is provided with convex slide mark 15, is provided with the pocket set 14 of vertically distribution on the right side of its montant, and montant body surface on the left of corresponding described pocket set 14 is printed on described containing mark 13; The scale value of described containing mark 13 is by the arrangement of up-small and down-big order.The described "T"-shaped cross bar left part limiting block piece 10 that slides is distributed in described restriction quarter butt 7 upper end, and can move up and down along the direction of motion limiting quarter butt 7; Described block piece extrusion spring 9 is distributed in described "T"-shaped slip and limits block piece 10 upper end, and the moment extrudes described "T"-shaped slip restriction block piece 10, move down to promote "T"-shaped slip restriction block piece 10, meanwhile, the stiffness factor of this block piece extrusion spring 9 is little compared with the stiffness factor of the back-moving spring 20 in piston cylinder; On the housing 6 at described inner chamber 16 place, be also provided with the recessed slideway 12 corresponding with described convex slide mark 15, be beneficial to described slip and limit sliding up and down of block piece 10; Described " convex " font card 11 is corresponding with the draw-in groove of described pocket set 14, its corresponding right being distributed in the described restriction block piece 10 that slides; Described card extrusion spring 18 is distributed in described " convex " font card 11 lower end, and the moment extrudes described card 11, to ensure without under pressed by external force, the state making described " convex " font card 11 bottom keep inserting in the draw-in groove of described pocket set 14 and the card outlet duct 21 that the upper end of described " convex " font card 11 is offered from housing 6 expose outside housing, and realize the pressing operation of personnel to described card 11; Make its underpart deviate from the draw-in groove of described pocket set 14 by pressing the upper end of described " convex " font card 11 and described "T"-shaped slip restriction block piece 10 is slided, make it under the extruding of card extrusion spring 18 when the upper end of unclamping card 11, its underpart is inserted in the draw-in groove of described pocket set 14 and is made described "T"-shaped slip limit block piece 10 stopping slip, and lock, limit block piece 10 to make slip and limiting the upper end of quarter butt 7 and limit the maximum displacement of described restriction quarter butt 7, and then realize the coarse adjustment effect to liquid absorption.Housing 6 above described containing mark 13 also offers scale sight vane 17, and this scale sight vane 17 is distributed in the left side of described card outlet duct 21, during to limit block piece 10 adjustment slip in described slip, see intuitively by scale sight vane 17 and move liquid pondage.
The beneficial effect of the specific embodiment 1 of this pipettor: adopt this pipettor, its rifle headgear has liquid-transfering sucker 1 of the present invention, when moving liquid, liquid measure is moved according to what will pipette, regulate pipettor to moving the slightly large liquid absorption of liquid measure than this, and show this regulated value by scale sight vane 17, to ensure that the quantitative liquid storage tube 2 of described liquid-transfering sucker can be filled liquid.Its operating procedure is: first extrusion piston bar 8 makes restriction quarter butt 7 to extreme lower position, press the upper end of described " convex " font card 11 again, make the draw-in groove deviate to slide on restriction block piece 10 in the bottom of card 11, under slip limits the squeezing action of block piece 10 block piece extrusion spring 9 at its upper end, along recessed slideway 12 slide downward, show to corresponding scale by scale sight vane 17, unclamp card 11 upper end, card 11 lower end is inserted slip and is limited the draw-in groove on block piece 10 and make slip restriction block piece 10 stop sliding, again target liq is drawn, at the end of nearly drawing, can see having target liq to overflow from liquid outlet 4 in quantitative liquid storage tube 2 upper end of liquid-transfering sucker, and flow down spillage storage tube 3 intracavity bottom, after absorption terminates, extrusion piston bar 8 carries out tapping again, liquid in quantitative liquid storage tube 2 is discharged completely, and the spillage bottom spillage storage tube 3 is still stayed in spillage storage tube 3, the high accurancy and precision completing required liquid measure moves liquid process, above-mentioned pipetting can be repeated to same target liq under the imbibition value mixed up.Move after liquid terminates, unclamp piston rod 8, and press the upper end of described " convex " font card 11, the draw-in groove on slip restriction block piece 10 is deviate from card 11 bottom, now, under back-moving spring 20 upwardly active force, carry out upwardly slip restriction block piece 10 by limiting quarter butt 7, make slip limit block piece 10 upward sliding, block piece extrusion spring 9 is compressed, until limit quarter butt 7 to rise to extreme higher position, complete pipetting process.
Use the specific embodiment 2 of the pipettor of this liquid-transfering sucker
As shown in Fig. 8 ~ Figure 10, a kind of pipettor using described liquid-transfering sucker 1, it comprises a piston rod 8 and a certain amount of adjusting device, on the right side of the middle part of described piston rod 8, horizontal integration has a restriction quarter butt 7, and this restriction quarter butt 7 is distributed in housing cavity 16, and together with piston rod 8 synchronizing moving; Described quantitative regulation apparatus is rectilinearly-moved slide type quantitative regulation apparatus, comprises a rectangular-shaped slip and limits block piece 10, block piece extrusion spring 9, " convex " font card 11, card extrusion spring 18 and pocket set 14; Described rectangular-shaped slip limits block piece 10 and is distributed in a housing cavity 16; Described rectangular-shaped slip limits block piece 10 and is distributed in described restriction quarter butt 7 upper end, and can move up and down along the direction of motion limiting quarter butt 7; Described block piece extrusion spring 9 is distributed in described slip and limits block piece 10 upper end, and the moment extrudes described slip restriction block piece 10; Meanwhile, the stiffness factor of this block piece extrusion spring 9 is little compared with the stiffness factor of the back-moving spring 20 in piston cylinder; Described slip limits its two side angle of block piece 10 and is provided with convex slide mark 15, and its face, upper body is concaved with card slot 19; Be distributed with described " convex " font card 11 and card extrusion spring 18 in described card slot 19, described card extrusion spring 18 is distributed in described card 11 lower end, and the moment extrudes described card 11; The card slideway mouth 21 that the upper end of described " convex " font card 11 offers from housing 6 exposes outside housing; Described card slideway mouth 21 limits the glide direction of block piece 10 offer along described slip, elongated, promotes operation up and down to realize personnel to the pressing of described card 11; Described pocket set 14 distributes along described card slideway mouth 21, and is distributed in housing 6 medial surface; Described card 11 is without under pressed by external force, and its underpart can keep the state inserted in the draw-in groove of described pocket set 14, limits block piece 10 lock described slip; On the housing 6 at described inner chamber 16 place, be also provided with the recessed slideway 12 corresponding with described convex slide mark 15, be beneficial to described slip and limit sliding up and down of block piece 10.In use, its underpart is made to deviate from the draw-in groove of described pocket set 14 by pressing the upper end of described " convex " font card 11, and up and down actuating card 11 and make it drive described slips restriction block piece 10 to slide up and down, make it under the extruding of card extrusion spring 18 when the upper end of unclamping card 11, its underpart is inserted in the draw-in groove of described pocket set 14 and is locked described slip restriction block piece 10, limit block piece 10 to make slip and limiting the upper end of quarter butt 7 and limit the maximum displacement of described restriction quarter butt 7, and then realize the coarse adjustment effect to liquid absorption.As shown in figure 12, the outer dignity of housing 6 of the described pocket set of correspondence 14 is also printed on containing mark 13; Described " convex " font card 11 often inserts fixing arbitrary draw-in groove, and its upper end is a corresponding scale value just, and demonstrates the liquid capacity that moves of adjustment intuitively; The scale value of described containing mark 13 is by the arrangement of up big and down small order; As shown in Figure 11 ~ Figure 12, described pipettor bottom is also provided with one to move liquid cavity 22 for multichannel, and the inner chamber 23 of this cavity 22 is a cavity, and be 8 straight-through rifle heads below inner chamber 23, the number of this rifle head can also be more certainly.In the present embodiment, the liquid absorption that arbitrary scale value of described containing mark 13 limits is the liquid absorption that this scale value is multiplied by 8, and under ensureing being selected in this scale value, the imbibition total amount of 8 rifle heads is 8 times of this scale value.
The beneficial effect of the specific embodiment 2 of this pipettor: adopt this pipettor, below it, rifle head group cover has 8 liquid-transfering suckers 1 of the present invention.When moving liquid, moving liquid measure according to what will pipette, regulating pipettor to moving the slightly large liquid absorption of liquid measure than this, to ensure that the quantitative liquid storage tube 2 of 8 liquid-transfering suckers can be filled liquid.Its operating procedure is: first extrusion piston bar 8 makes restriction quarter butt 7 to extreme lower position, press the upper end of described " convex " font card 11 again, the bottom of card 11 is made to deviate from the draw-in groove of housing 6 medial surface, and drag card 11 drive described slip limit block piece 10 slide to required scale place, unclamp card 11 upper end again, the draw-in groove corresponding to this scale value is inserted in card 11 lower end, and locks slip restriction block piece 10; Again target liq is drawn, at the end of nearly drawing, can see having target liq to overflow from liquid outlet 4 in quantitative liquid storage tube 2 upper end of each liquid-transfering sucker, and flow down spillage storage tube 3 intracavity bottom.If find that the liquid outlet 4 of the quantitative liquid storage tube 2 of the liquid-transfering sucker wherein had does not have overflow or quantitative liquid storage tube 2 inner chamber not to be filled liquid, then first by liquids discharge, regulate card 11 to larger containing mark value, again imbibition again, till the liquid outlet 4 of the quantitative liquid storage tube 2 observing each liquid-transfering sucker has overflow or ensures that quantitative liquid storage tube 2 inner chamber is filled liquid, extrusion piston bar 8 carries out tapping more afterwards, after completing tapping, under the imbibition value mixed up, repetition pipetting can be carried out to same target liq.After terminating to move liquid, unclamp piston rod 8, and press the upper end of described " convex " font card 11, the draw-in groove of housing 6 medial surface is deviate from card 11 bottom, then actuating card 11 to extreme higher position, completes pipetting process.
Claims (6)
1. a liquid-transfering sucker (1), is characterized in that:
Comprise a certain amount of liquid storage tube (2) and a spillage storage tube (3), described quantitative liquid storage tube (2) is distributed in spillage storage tube (3) below; Described quantitative liquid storage tube (2) lower end is that suction nozzle is sharp-tongued, and its upper end offers liquid outlet (4); Described quantitative liquid storage tube (2) top is inserted in described spillage storage tube (3) inner chamber, and closely engages with spillage storage tube (3); The position of the liquid outlet (4) of described quantitative liquid storage tube (2) upper end is between the inner chamber bottom surface and its top of described spillage storage tube (3); Described quantitative liquid storage tube (2) inserts the part in described spillage storage tube (3) inner chamber, and the gap length between its tube wall and spillage storage tube inwall is around enough to make liquid flow down described spillage storage tube (3) intracavity bottom smoothly from fluid (4).
2. liquid-transfering sucker according to claim 1, is characterized in that:
Described quantitative liquid storage tube (2) middle and upper part is also provided with reservoir bubble (5), and described reservoir bubble (5) is distributed in the below of quantitative liquid storage tube (2) and spillage storage tube (3) junction.
3. use a pipettor for liquid-transfering sucker (1) as claimed in claim 1, it comprises a piston rod (8) and a certain amount of adjusting device, it is characterized in that:
The side, middle and upper part of described piston rod (8), horizontal integration has a restriction quarter butt (7), this restriction quarter butt (7) synchronizing moving together with piston rod (8);
Described quantitative regulation apparatus is rectilinearly-moved slide type quantitative regulation apparatus, comprises a slip and limits block piece (10), a block piece extrusion spring (9), one " convex " font card (11), a card extrusion spring (18) and pocket set (14); Described slip limits block piece (10) and is distributed in a housing cavity (16), and is distributed in described restriction quarter butt (7) upper end, and can move up and down along the direction of motion limiting quarter butt (7); Described block piece extrusion spring (9) is distributed in described slip and limits block piece (10) upper end, and the moment limits block piece (10) extruding to described slip; Described " convex " font card (11) are corresponding with the draw-in groove of described pocket set (14); Described " convex " font card (11) and described pocket set (14), one of them is distributed in described slips restriction block piece (10), and another is then corresponding is distributed on pipettor housing (6); Described card extrusion spring (18) is distributed in described " convex " font card (11) lower end, and the moment extrudes described card (11), to ensure without under pressed by external force, the state making described " convex " font card (11) bottom keep inserting described pocket set (14) draw-in groove and the card outlet duct (21) that the upper end of described " convex " font card (11) is offered from housing (6) expose outside housing; Described " convex " font card (11) control the fixing of described restriction block piece (10) of sliding by inserting or deviate from the draw-in groove of described pocket set (14) or slide, limit to make slip the upper end that block piece (10) is limiting quarter butt (7) and limit the maximum displacement regulating described restriction quarter butt (7), and then realize the coarse adjustment effect to liquid absorption.
4. pipettor according to claim 3, is characterized in that:
Described pipettor is also provided with the containing mark (13) corresponding with described pocket set (14); Described containing mark (13) is when described pocket set (14) is distributed in described slip restriction block piece (10), it is printed on described slip and limits on block piece (10), when described pocket set (14) is distributed on housing (6), be then printed on housing (6) outer body surface.
5. pipettor according to claim 3, is characterized in that:
When described containing mark (13) is printed in described slip restriction block piece (10), housing (6) above it offers scale sight vane (17), and this scale sight vane (17) is distributed in the left side of described card outlet duct (21).
6. the pipettor according to any one of claim 3 ~ 5, is characterized in that:
Described pipettor bottom is also provided with one to move liquid cavity (22) for multichannel, and the inner chamber (23) of this cavity (22) is a cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410660115.3A CN104826679A (en) | 2014-11-09 | 2014-11-09 | Pipette tip and pipette therewith |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660115.3A CN104826679A (en) | 2014-11-09 | 2014-11-09 | Pipette tip and pipette therewith |
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| CN104826679A true CN104826679A (en) | 2015-08-12 |
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Cited By (7)
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| CN108883416A (en) * | 2016-04-12 | 2018-11-23 | 吉尔松有限合伙公司 | The pipettor that extended liquid volume is extracted |
| CN110509254A (en) * | 2018-05-21 | 2019-11-29 | 李木 | The robot and its control method of adjustable liquid relief utensil range and accurate liquid relief |
| CN111774114A (en) * | 2020-08-22 | 2020-10-16 | 江苏科华医疗器械科技有限公司 | Single-quantitative blood sampling pipette and blood sampling and pipetting method thereof |
| CN111947980A (en) * | 2020-06-24 | 2020-11-17 | 公卫爱 | Food inspection ultrasonic cavitation liquid-transfering device |
| CN112461602A (en) * | 2020-11-27 | 2021-03-09 | 广东昊朗医疗科技有限责任公司 | Simple and easy accurate quantitative sampling device of blood |
| CN114786816A (en) * | 2019-12-06 | 2022-07-22 | 埃佩多夫欧洲股份公司 | Pipette tip kit and pipette kit |
| WO2024119395A1 (en) * | 2022-12-07 | 2024-06-13 | 信任生医股份有限公司 | Micropipette tip, kit including micropipette tip, and use thereof in measuring liquid level |
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Application publication date: 20150812 |