CN208583358U - Elongated drop prepares liquid relief plastics pipette tips - Google Patents

Elongated drop prepares liquid relief plastics pipette tips Download PDF

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Publication number
CN208583358U
CN208583358U CN201821260530.XU CN201821260530U CN208583358U CN 208583358 U CN208583358 U CN 208583358U CN 201821260530 U CN201821260530 U CN 201821260530U CN 208583358 U CN208583358 U CN 208583358U
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pipette tips
liquid
prepares
mouth
ontology
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刘晓
刘璟青
王娟
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Abstract

The utility model discloses a kind of elongated drops to prepare liquid relief plastics pipette tips, including pipette tips ontology, connection end and liquid prepare mouth;The pipette tips ontology is inverted conical shape structure wide at the top and narrow at the bottom, and the connection end is inverted conical shape structure wide at the top and narrow at the bottom and the upper end that the pipette tips ontology is arranged in, and the pipette tips ontology is connect by the connection end with pipettor head;It is flat structure and the lower end that the pipette tips ontology is arranged in that the liquid, which prepares mouth, the thickness that the liquid prepares mouth is suitable with the lower end of pipette tips ontology, and it is the flat class arc surfaced structure of asymmetric arc side that the liquid, which prepares mouth, the liquid prepares the bottom level of mouth.Pipette tips shape is designed to circular cone asymmetry flat port by the utility model, is able to satisfy the purpose of the elongated droplet manipulation of specification of various needs, the operation being more convenient in real work, while being also convenient for changing pipette tips.

Description

Elongated drop prepares liquid relief plastics pipette tips
Technical field
The utility model relates to the related applications such as biology and medicine fields more particularly to a kind of elongated drop to prepare liquid relief Plastics pipette tips.
Background technique
Currently, biology is related in the experiment that liquid pipettes with medicine, drop of all sizes, institute are often prepared Method is the point sample preparation of drop needed for being carried out with the mating liquid transfer gun head of dedicated pipettor of corresponding pipetting volume range.Cause To be circular cone sharp-crested with pipette tips are applied all, the drop of preparation is all round.But it in actual operation, needs to use non-circular liquid Drop, such as: it is frequently necessary to use in practical pipetting and prepare elongated drop, not such as the unicellular cell separated in pick process With the preparation of concentration gradient, or using the monosperm etc. after sperm race method selection optimization, how to obtain the elongated of suitable size Drop is most important.The liquor-transferring system of the prior art can only first prepare continuous drop, then penetrate through or move in injecting fluid Dynamic pipette tips, to prepare the elongated drop of suitable size.These methods are time-consuming and laborious, and precision is difficult to control, and cannot especially expire Full border workload is bigger, needs the requirement of the elongated drop preparation of continuous accurate canonical shapes, needs one kind in real work The method of innovation and product solve this urgent practical problem.
Utility model content
The purpose of this utility model: providing a kind of elongated drop preparation liquid relief plastics pipette tips, and structure is simple, easy to use, It is at low cost.
To achieve the goals above, the technical solution of the utility model is:
A kind of elongated drop preparation liquid relief plastics pipette tips, including pipette tips ontology, connection end and liquid prepare mouth;Described Pipette tips ontology is inverted conical shape structure wide at the top and narrow at the bottom, and the connection end is inverted conical shape structure wide at the top and narrow at the bottom and is arranged In the upper end of the pipette tips ontology, the pipette tips ontology is connect by the connection end with pipettor head;Described Liquid prepares mouth and is flat structure and is arranged in the lower end of the pipette tips ontology, the liquid prepare the thickness of mouth with it is described The suitable and described liquid in lower end of pipette tips ontology to prepare mouth be the flat class arc surfaced structure of asymmetric arc side, it is described Liquid prepares the bottom level of mouth.
Above-mentioned elongated drop prepares liquid relief plastics pipette tips, wherein the pipette tips ontology 1 is equipped with air-flow filter core, is located at DescribedConnection endLower section.
Above-mentioned elongated drop prepares liquid relief plastics pipette tips, wherein and the top diameter of the air-flow filter core is 2.5mm, The height of the air-flow filter core is 2mm.
Above-mentioned elongated drop prepares liquid relief plastics pipette tips, wherein it is strip structure that the liquid, which prepares mouth, described Liquid prepare mouth both ends be arc-shaped structure.
Above-mentioned elongated drop prepares liquid relief plastics pipette tips, wherein the connection end is made of plastic material, described Connection end be in up big and down small back taper frosted shape structure.
Above-mentioned elongated drop prepares liquid relief plastics pipette tips, wherein the outside diameter of the connection end is 6mm, institute The inside diameter for the connection end stated is 3.4mm.
Above-mentioned elongated drop prepares liquid relief plastics pipette tips, wherein the elongated drop preparation liquid relief plastics pipette tips Height is 34mm.
Above-mentioned elongated drop prepares liquid relief plastics pipette tips, wherein and the wall thickness that the liquid prepares mouth is 0.25mm, The lumen width that the liquid prepares mouth is 0.5mm.
Above-mentioned elongated drop prepares liquid relief plastics pipette tips, wherein the length that the liquid prepares mouth is 10mm, height For 10mm, and it is 3mm that the liquid for being located at the central axes side of the pipette tips ontology, which prepares the length of mouth, positioned at the pipette tips The length that the liquid of the central axes other side of ontology prepares mouth is 7mm.
Pipette tips shape is designed to circular cone asymmetry flat port by the utility model, is able to satisfy the elongated liquid of specification of various needs The purpose of operation, the operation being more convenient in real work are dripped, while being also convenient for changing pipette tips.
Detailed description of the invention
Fig. 1 is the main view of the elongated drop preparation liquid relief plastics pipette tips of the utility model.
Fig. 2 is the side view of the elongated drop preparation liquid relief plastics pipette tips of the utility model.
Fig. 3 is the top view of the elongated drop preparation liquid relief plastics pipette tips of the utility model.
Specific embodiment
The embodiments of the present invention that the following is further explained with reference to the attached drawings.
It refers to shown in attached drawing 1 to attached drawing 3, a kind of elongated drop preparation liquid relief plastics pipette tips, including pipette tips ontology 1, company It connects end 2 and liquid prepares mouth 3;The pipette tips ontology 1 is conical structure wide at the top and narrow at the bottom, and the connection end 2 is Inverted conical shape structure wide at the top and narrow at the bottom and the upper end that the pipette tips ontology 1 is arranged in, the pipette tips ontology 1 pass through described The frosted inner wall of connection end 2 is connect with pipettor head;The liquid prepares mouth 3 and is flat structure and the rifle is arranged in The lower end of head ontology 1, the liquid prepare the width liquid suitable and described with the lower end of pipette tips ontology 1 of mouth 3 Preparing mouth 3 is the flat class arc surfaced structure of asymmetric arc side, and the liquid prepares the bottom level of mouth 3.
It is equipped with air-flow filter core 4 in the pipette tips ontology 1, the top of mouth 3 is prepared positioned at the liquid, can prevent to grasp Make air-flow by bringing bacterium into when pipette tips ontology 1, guarantees the germ-free condition of elongated drop, facilitate the sterile of subsequent cell level Operation.
The top diameter of the air-flow filter core 4 is 1.5mm, and the height of the air-flow filter core 4 is 2mm.
It is strip structure that the liquid, which prepares mouth 3, and the both ends that the liquid prepares mouth 3 are arc-shaped structure, system The standby droplet profile come out also becomes the unified elongated drop of specification switch size by original conventional circular, meets each of later period Kind experimental implementation.
The connection end 2 is made of plastic material, and the connection end 2 is in up big and down small back taper frosted shape knot Structure, size and pipettor head (back taper is up big and down small) size exactly match, and guarantee air-tightness, also facilitate in practical operation This pipette tips are installed or switched, the operation of this kind of drop preparation is greatly facilitated.
The outside diameter of the connection end 2 is 6mm, and the inside diameter of the connection end 2 is 3.4mm.
The height of the elongated drop preparation liquid relief plastics pipette tips is 34mm.
The wall thickness that the liquid prepares mouth 3 is 0.25mm, and the lumen width that the liquid prepares mouth 3 is 0.5mm.
The length that the liquid prepares mouth 3 is 10mm, is highly 10mm, and is located at the axis of the pipette tips ontology 1 The length that the liquid of line side prepares mouth 3 is 3mm, and the liquid positioned at the central axes other side of the pipette tips ontology 1 prepares mouth 3 Length be 7mm, in the cell manipulation to prevent the later period because elongated droplet profile or so is full symmetric, caused by drop two Petiolarea does not divide, and experimental implementation is caused to obscure fault, and design liquid prepares mouth 3 as asymmetric flat port, convenient and remaining drop The phenomenon that being marked when compounding practice, preventing maloperation.
It is not easy to obscure, guarantees sterile, good airproof performance, conveniently in reality in the practical use multiplicity of the utility model, operation Installation and this kind of liquid transfer gun head of switching in operation.
The improved elongated drop of standardization is required according to concrete operations using this, Conventional drop preparation manipulation can be become In may only obtain circular drop as a result, the unified elongated drop of a large amount of shape specification sizes can be obtained easily, it is convenient with Need to use the various situations of elongated drop afterwards, the cell density gradient system for needing to use in the unicellular separation pickup such as carried out The optimization of standby or monosperm needs to carry out the operation such as sperm race in picking up, and improves the accuracy of elongated drop preparation, canonical shapes Size, and install switching liquid transfer gun head it is simple, ensure that the aseptic result of operation, facilitate high-throughput fast operating.This reality It is applicable in very much with the novel various situations for needing to use elongated drop in various practical biomedical work, solves reality A major class is related to the problem of elongated drop preparation is with using in operation.
Certainly combination pattern drop is prepared using multi-pass operation, such as control turns shape liquid with parallel elongated drop, cross drop Drop etc. facilitates the various special circumstances for needing to use in practical operation.
In conclusion pipette tips shape is designed to circular cone asymmetry flat port by the utility model, it is able to satisfy various needs The purpose of the elongated droplet manipulation of specification, the operation being more convenient in real work, while being also convenient for changing pipette tips.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Any equivalent structural transformation made using the contents of the description of this utility model is directly or indirectly related with other are attached to The technical field of product, is also included in the patent protection scope of the utility model.

Claims (9)

1. a kind of elongated drop prepares liquid relief plastics pipette tips, it is characterised in that: prepared including pipette tips ontology, connection end and liquid Mouthful;The pipette tips ontology is inverted conical shape structure wide at the top and narrow at the bottom, and the connection end is inverted conical shape wide at the top and narrow at the bottom Structure and the upper end that the pipette tips ontology is arranged in, the pipette tips ontology are connected by the connection end and pipettor head It connects;It is flat structure and the lower end that the pipette tips ontology is arranged in that the liquid, which prepares mouth, and the liquid prepares mouth It is asymmetric arc side cambered surface shape knot that the thickness liquid suitable and described with the lower end of pipette tips ontology, which prepares mouth, Structure, the liquid prepare the bottom level of mouth.
2. elongated drop according to claim 1 prepares liquid relief plastics pipette tips, it is characterised in that: the pipette tips ontology is set There is air-flow filter core, positioned at the lower section of the connection end.
3. elongated drop according to claim 2 prepares liquid relief plastics pipette tips, it is characterised in that: the air-flow filter core Top diameter is 2.5mm, and the height of the air-flow filter core is 2mm.
4. elongated drop according to claim 1 prepares liquid relief plastics pipette tips, it is characterised in that: the liquid prepares mouth For strip structure, the both ends that the liquid prepares mouth are arc-shaped structure.
5. elongated drop according to claim 1 prepares liquid relief plastics pipette tips, it is characterised in that: the connection end is Plastic material is made, and the connection end is in up big and down small frosted inner wall inverted cone shape structure.
6. elongated drop according to claim 5 prepares liquid relief plastics pipette tips, it is characterised in that: the connection end Outside diameter is 6mm, and the inside diameter of the connection end is 3.4mm.
7. elongated drop according to claim 1 prepares liquid relief plastics pipette tips, it is characterised in that: the elongated drop system The height of standby liquid relief plastics pipette tips is 34mm.
8. elongated drop according to claim 1 prepares liquid relief plastics pipette tips, it is characterised in that: the liquid prepares mouth Wall thickness be 0.25mm, the liquid prepare mouth lumen width be 0.5mm.
9. elongated drop according to claim 1 prepares liquid relief plastics pipette tips, it is characterised in that: the liquid prepares mouth Length be 10mm, be highly 10mm, and the liquid for being located at the central axes side of the pipette tips ontology prepares the length of mouth and is 3mm, the length that the liquid positioned at the central axes other side of the pipette tips ontology prepares mouth is 7mm.
CN201821260530.XU 2018-08-06 2018-08-06 Elongated drop prepares liquid relief plastics pipette tips Active CN208583358U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821260530.XU CN208583358U (en) 2018-08-06 2018-08-06 Elongated drop prepares liquid relief plastics pipette tips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821260530.XU CN208583358U (en) 2018-08-06 2018-08-06 Elongated drop prepares liquid relief plastics pipette tips

Publications (1)

Publication Number Publication Date
CN208583358U true CN208583358U (en) 2019-03-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109706064A (en) * 2019-03-09 2019-05-03 刘晓 Multipurpose cell, the preparation of lipid vesicles suspension pipette liquid relief plastics pipette tips
CN115228525A (en) * 2022-06-30 2022-10-25 晶准生物医学(深圳)有限公司 Liquid droplet generating gun head and liquid droplet generating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109706064A (en) * 2019-03-09 2019-05-03 刘晓 Multipurpose cell, the preparation of lipid vesicles suspension pipette liquid relief plastics pipette tips
CN115228525A (en) * 2022-06-30 2022-10-25 晶准生物医学(深圳)有限公司 Liquid droplet generating gun head and liquid droplet generating device

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